News
We would attend this Turkey Exhibition:
Rubber Eurasia 2024
Istanbul April 17 - 20, 2024
Our Booth：1136D
Please contact with my colleague for any inquiries:
Mr. Xiaofeng Liu +86-13352267538 (WA/Wechat)
If so, pls feel free to inform us when would you come, I would save our time for you.
DALIAN RICHON CHEM CO.LTD
As one of the leader suppliers for rubber chemicals, we:
Produce rubber accelerators since 1990
Produce rubber antioxidant since 1995
Main product's throughput as follow:
Accelerator MBT: 14,000mt/year
Accelerator MBTS: 5,000mt/year
Accelerator CBS: 11,000mt/year
Accelerator DCBS: 2,000mt/year
Accelerator TMTD: 4,000mt/year
Accelerator NOBS: 5,000mt/year
Accelerator TBBS: 12,000mt/year
Accelerator ZMBT: 2,000mt/year
Vulcanizing Agent DTDM: 3,000mt/year
Antioxidant TMQ: 10,000mt/year
Adhesive RA-65 (HMMM): 2,000mt/year
Antioxidant 6PPD: 40,000 mt/year
SILICA/ SILICON DIOXIDE: 150,000mt/year
RICHON brand has registered at Russia, EU, and China.
We would attend this Exhibition in Shanghai: RubberTech China 2023
New International Expo Center, September 04-06, 2023 Our Booth No.: 1B773
Please contact with my colleagues for any inquires:
Mr. Liming Ge +86 13352260048 (WA/Wechat)
Mr. Xiaofeng Liu +86 13352267538 (WA/Wechat)
Mr. Yufeng Ge +86-13352267498 (WA/Wechat)
Miss. Carrie +86-13352260739 (WA/Wechat)
Miss. Candice +86 13352263208 (WA/Wechat)
Mr. Jay +86 13352263296 (WA/Wechat)
Miss. Lynn +86 13029400136 (WA/Wechat)
Miss. Amy +86 13352263029 (WA/Wechat)
If so, pls feel free to inform us when would you come, I would save our time for you.
Dalian FTZ Richon Intl Trade Co., Ltd. (Sister company of Dalian Richon Chem., Ltd.)
As one of the leader suppliers for rubber chemicals, we:
Produce rubber accelerators since 1990
Produce rubber antioxidant since 1995
Main product's throughput as follow:
Accelerator MBT: 14,000mt/year
Accelerator MBTS: 5,000mt/year
Accelerator CBS: 11,000mt/year
Accelerator DCBS: 2,000mt/year
Accelerator TMTD: 4,000mt/year
Accelerator NOBS: 5,000mt/year
Accelerator TBBS: 12,000mt/year
Accelerator ZMBT: 2,000mt/year
Vulcanizing Agent DTDM: 3,000mt/year
Antioxidant TMQ: 10,000mt/year
Adhesive RA-65 (HMMM): 2,000mt/year
Antioxidant 6PPD: 40,000 mt/year
SILICA/ SILICON DIOXIDE: 150,000mt/year
RICHON brand have registered at Russia, EU, and China.
Our synthetic rubber relevant products as follows:
CR DCR SBR BR NBR IR CMS-40 SBS SEBS SIS EPDM Silicone Rubber, etc.
Welcome customers and friends to visit us and let's go forward hand in hand to create splendid victory.
Tel: +86-411-82507336 82507337 82507338
Add: I/10F Chinabank Plaza,15 Renmin Road, Dalian,116001 China
E-mail: info@richon-chem.com Website: www.richon-chem.com
In the rubber products and tire industry, tackifying resins provide the necessary viscosity during the processing process, so rubber products and tire companies are more concerned about the performance of rubber products themselves. However, the study of its viscosification mechanism should also be paid enough attention.
The theoretical research of Dalian Richon Chem on tackifying resins focuses on industries that use a large number of it, such as pressure sensitive adhesives, hot melt adhesives, etc., in these fields, the amount of it can be as high as 50 to 70 parts. Since hot melt adhesives and pressure sensitive adhesives are also composed of rubber and tackifying resins, the tackifying mechanism in these areas can also be applied to the rubber industry. The explanation mechanism can be divided into two aspects: on the one hand, the molecular adsorption and diffusion theory of rubber contact surface, and on the other hand, the formation theory of contact interface. The molecular adsorption and diffusion theory of rubber contact surface includes contact, adsorption, diffusion and other explanations, and finally unified as two-way adsorption and diffusion.
When two materials come into contact, the atoms and molecules in the material will interact with each other. These forces include strong forces such as chemical bonds, as well as weak forces such as hydrogen bonds and dispersion forces. In the case of materials, their viscosity is affected by dispersion, polarity and hydrogen bonding. In the case of rubber materials, polymers can be diffused and entangled upon contact, and through the diffusion of polymer molecules, the two surfaces are finally joined together. This is a good explanation for why small pieces of rubber become whole after a certain amount of time, because over time, the diffusion of the polymer continues and eventually forms a whole. The diffusion and entanglement of polymers are closely related to their relative molecular mass. If the relative molecular mass is small, the diffusion is easy, but the entanglement is low. If the molecular weight is high, the diffusion is difficult, but the entanglement occurs and the strength after entanglement is better. For areas that use less viscosifying resins, when considering the choice of viscosifying resins, it is also necessary to consider the effect of the relative molecular mass of the rubber used on the viscosity.
Dalian Richon is a professional rubber accelerators & antioxidants manufacturer and supplier in China. We can offer tackifying resin with high quality and moderate price. If you have any demand of rubber additives,please feel freely contact us.
According to the different functions and uses of carbon black, it can be roughly classified into: tire and rubber application carbon black, pigment carbon black and conductive carbon black. a.Carbon black for tire and rubber: The main use of carbon black is as a reinforcing agent of rubber, it can form a stable chemical bond with rubber molecular chain, so as to achieve the reinforcing effect. Generally, because the larger the surface area and the higher the structure of the carbon black, the more contact area with the rubber, the better the reinforcement will be. This type of carbon black is often used in tire tread to increase its wear resistance. For rubber products, the most important is the processing performance, usually the use of low specific surface area, high structure of carbon black, so that the rubber material is easy to process and has good extrusion characteristics, while maintaining a certain degree of physical reinforcement characteristics. About 70% of the world’s carbon black is used to make tires, which is the largest application of carbon black. About 20% of the carbon black is used for industrial rubber products other than tires, of which half are used for automotive components, so about 80% of the carbon black is consumed in the automotive industry, it can be seen that the carbon black industry is closely related to the tire industry and the automotive industry.
According to the different functions and uses of carbon black, it can be roughly classified into: tire and rubber application carbon black, pigment carbon black and conductive carbon black. a.Carbon black for tire and rubber: The main use of carbon black is as a reinforcing agent of rubber, it can form a stable chemical bond with rubber molecular chain, so as to achieve the reinforcing effect. Generally, because the larger the surface area and the higher the structure of the carbon black, the more contact area with the rubber, the better the reinforcement will be. This type of carbon black is often used in tire tread to increase its wear resistance. For rubber products, the most important is the processing performance, usually the use of low specific surface area, high structure of carbon black, so that the rubber material is easy to process and has good extrusion characteristics, while maintaining a certain degree of physical reinforcement characteristics. About 70% of the world’s carbon black is used to make tires, which is the largest application of carbon black. About 20% of the carbon black is used for industrial rubber products other than tires, of which half are used for automotive components, so about 80% of the carbon black is consumed in the automotive industry, it can be seen that the carbon black industry is closely related to the tire industry and the automotive industry.
Carbon is one of the most common elements in nature, whether it is carbon itself or the compounds composed of carbon, it has a very wide range of applications. Among all kinds of carbon materials, carbon black is one of the earliest nanomaterials used by humans. It is widely used in the rubber industry, and also contributes to the application of carbon black in plastics, ink coatings and electrical conductivity
Dalian Richon chem Co., Ltd. have begun exported Carbon black since 2003, include Thailand, Maylasia, Mexico, Turkey and Egypt.
Carbon black is composed of more than 95% carbon, as well as a small amount of oxygen, sulfur, nitrogen and ash, is a kind of soot, texture is extremely light and fine black powder, so it is also known as carbon smoke. The particle size of primary carbon black particles is about 10-500nm, which is stacked by layers of molecular structures similar to stone grinding. If observed by electron microscope, it can be found that carbon black does not exist as a single particle, but is closely connected by one primary carbon black particle to form a grape string aggregate. This is the primary structure of carbon black; The primary structure will be adsorbed to each other into agglomerate due to the Van der Waals force, and finally after granulation, it is the carbon black particles visible on the market.
Method of making carbon black: Carbon black is a product obtained by pyrolysis or incomplete combustion of carbonaceous hydrogen compound as raw material. At present, the most important production method of Richon Chem is the oil furnace method of carbon black, using heavy petroleum oil such as tower bottom oil and creosote as raw materials, introducing the high temperature of 1800℃ reactor, accurately controlling the reaction parameters, producing carbon black with multiple applications and high thermal tail gas, and the tail gas can further produce steam and electricity.
Characteristics of carbon black: Since the primary particles of carbon black are stacked by many graphite-like molecules, such a multi-pore structure makes carbon black have certain surface physical and chemical properties, and makes carbon black have excellent reinforcement, coloring power and electrical conductivity, which are affected by the primary particle size, structural complexity and functional groups on the surface of carbon black particles.
Dalian Richon is a professional rubber accelerators & antioxidants manufacturer and supplier in China. We are the manufacture of carbon black. The product of high quality and low price. Our products have been exported to 76 countries. If you would like to know more about it, please click on the website and contact us.
Website: https://www.richon-chem.com/
E-mail: info@richon-chem.com
We would attend this Thailand Exhibition:
Global Rubber, Latex & Tyre Expo 2023
BITEC Bangkok, Mar.29-Mar.31, 2023
Our Booth No.: H17
Please contact with my colleague for any inquires:
Mr. Yufeng Ge +86-13352267498 (WA/Wechat)
Miss Shirley +86-13352267458 (WA/Wechat)
Miss Carrie +86-13352260739 (WA/Wechat)
If so, pls feel free to inform us when would you come, I would save our time for you.
DALIAN RICHON CHEM CO.LTD
As one of the leader suppliers for rubber chemicals, we:
Produce rubber accelerators since 1990
Produce rubber antioxidant since 1995
Main product's throughput as follow:
Accelerator MBT: 14,000mt/year
Accelerator MBTS: 5,000mt/year
Accelerator CBS: 11,000mt/year
Accelerator DCBS: 2,000mt/year
Accelerator TMTD: 4,000mt/year
Accelerator NOBS: 5,000mt/year
Accelerator TBBS: 12,000mt/year
Accelerator ZMBT: 2,000mt/year
Vulcanizing Agent DTDM: 3,000mt/year
Antioxidant TMQ: 10,000mt/year
Adhesive RA-65 (HMMM): 2,000mt/year
Antioxidant 6PPD: 40,000 mt/year
SILICA/ SILICON DIOXIDE: 150,000mt/year
RICHON brand have registered at Russia, EU, and China.
Our sister company Dalian FTZ Richon Intl Trade Co., Ltd. also export synthetic rubber, include:
CR DCR SBR BR NBR IR CMS-40 SBS SEBS SIS EPDM Silicone Rubber
Welcome customers and friends to visit us and let's go forward hand in hand to create splendid victory.
Tel: +86-411-82507336 82507337 82507338
Add: I/10F Chinabank Plaza,15 Renmin Road, Dalian,116001 China
E-mail: info@richon-chem.com Website: www.richon-chem.com
Power Rationing, Raw Material Prices Increased
In last few months, Dalain Richon Chem Co., Ltd. feels very difficult to supply enough products to our customers.
Power supply constraints plus double control of energy consumption, power rationing, production suspension are effecting many provinces in China
Recently, many places have issued new government policy documents of "DUAL CONTROL OF ENERGY CONSUMPTION", and all kinds of industries with high energy consumption and high pollution have stopped production. Power rationing and shutdowns are affecting at least 10 provinces, including Jiangsu, Zhejiang, Shandong, Guangxi, Liaoning and Yunnan
The impact of energy consumption control policy on upstream enterprises is bigger, and the price of raw materials rises sharply again, leading to more difficult business for rubber chemical manufacturers.
Yesterday, one of our plant has received a verbal notice of "work 4 stop 3", not to shut down from Friday to Sunday, but there are still three hours of blackout every day.
Power rationing will lead to an increase in production costs, and more seriously the productivity will be slashed, and the delivery cycle will be extended. Plus the holiday peak season around the world is coming soon, and all customers are pressing for delivery.
Dalian Richon’s sales increased 80% in first 9 months of 2021.
Now we have to be more cautious to accept new orders. We need to explain to customers in advance that the delivery period will be extended by at least 1 to 2 weeks. The impact is hard to estimate, and it is not clear how long the power rationing will last.
Anyway, Dalian Richon still keep all contracts with our customers and will try our best to serve our partners during this hard time.
Characteristics of guanidine accelerators:
Dalian Richon Chem note guanidine accelerators most used alkaline accelerators, which is a medium-speed accelerator for natural rubber and synthetic rubber. The vulcanization starts slowly, the operation safety is good, and the vulcanization speed is also slow. The biggest feature is the high degree of vulcanization, resulting in high hardness and high constant elongation stress.
The promotion effect lasts for a long time, which can make the rubber material vulcanize for a long time. It is suitable for the vulcanization of thick products (such as rubber rollers), but the product is easy to age and crack, and has discoloration and pollution, which is not suitable for white products. .
Due to the slow vulcanization speed and poor heat aging resistance, guanidine accelerators are generally not used alone, but as the second accelerator for thiazoles and sulfenamides. When used together, the activation effect is particularly strong, and it can only be used alone in hard rubber products.
The main varieties of guanidine accelerators include: accelerator DPG(D), DOTG, BG, TPG, POTG 5. Among them, the guanidine compounds provided by Dalian Richon Chemical Co., Ltd. are accelerator DPG and accelerator DOTG. The details will be introduced below.
1 DPG (D)
DPG, also known as 1,3-Diphenylguanidine, is a white powder, non-toxic, with a critical temperature of 141°C, soluble in chloroform, toluene, benzene and ethanol; insoluble in gasoline and water. Does not absorb moisture.
The scorch time is longer, the vulcanization speed is slow, the flatness is poor, the vulcanizate has high tensile strength, constant elongation stress, high hardness, poor heat aging resistance, discoloration and pollution.
Dosage: 1~2 parts as the first accelerator, 0.1~0.5 parts as the second accelerator.
2 DOTG
DOTG, also known as 1,3-di-O-tolylguanidine, is a white powder with similar performance to DPG, safer operation, and higher cross-linking degree than DPG.
Dosage: 0.8~1.5 parts as the first accelerator, 0.1~0.5 parts as the second accelerator.
2.The application of guanidine accelerators
Guanidine accelerators are generally not used independently, but as the second accelerator of thiazoles and sulfenfluorobenzenes. It is used in the production of rubber sheets, shoe soles, bicycle tires, industrial products and their thick products, and hard rubber products.
1 Accelerator DPG
Used as a medium-speed accelerator for natural rubber and synthetic rubber, mainly used in the manufacture of tires, rubber sheets, rubber shoes and other rubber industrial products.
Used as an auxiliary accelerator for thiazole and sulfenamide in NR and SBR compounds. Compared with thiuram and dithiocarbamate, it shows better storage stability, but is not as active. DPG can be used as an auxiliary gelling agent (foam stabilizer) in the fluorinated silicon foam process in latex.
2 Accelerator DOTG
It can be used for natural rubber and diene synthetic rubber. Applicable to NR, SNR, IIR, IR, SBR, NBR and CR. Rarely used alone, usually used together with thiazoles, thiurams, dithioamino horses and sulfenimides to improve its activity. This product is a CR plastic decomposer. However, this product is not suitable for food-related products or medical products.
Author: LN – Dalian Richon Chem Co., Ltd.
Dated: 2021-09-06
Dalian Richon glad to introduce Dithiocarbamate accelerators are ultra-overspeed accelerators. It has low active temperature, fast vulcanation speed, and high crosslinking degree. Suitable for thin products, room temperature sulfide products, rubber dairy products, butyl rubber and sulfurized products of EPDM rubber.
Among them, ammonium dithiamate, sodium, potassium as water-soluble accelerators, mostly used as sulfide accelerators for glue dairy products; zinc dithiamdine promotion activity is lower than ammonium salt, has certain operating safety in dry glue, thiazole, autumn um, potassium promoters in thithiamate, sodium, and latex, which is also the most commonly used varieties.
Dalian Richon can provide dithiocarbamate accelerators include: ZDMC(PZ), ZDBC(BZ), ZDEC(ZDC,EZ), ZEPC(PX), ZBEC(DBZ), TDEC, CDMC(CDD). The following is a detailed introduction to the product we can provide.
1.ZDMC(PZ)
ZDMC chemical name is zinc dimethyl dithiocarbamate, white or light yellow powder, specific gravity is 1.66, slightly soluble in ethanol and carbon tetracloride at 25℃. It easy to disperse in rubber, suitable for light and bright color products, mainly used for latex products, can also be used for self-sulfur glue, adhesive, cold sulfur products, food rubber products.
2.ZDBC(BZ)
ZDBC chemical name is dibutyl dithiocarbamate zinc, white powder, soluble in carbon disulfide, benzene, chloroform, ethanol, ether, insoluble in water and dilute alkali, stable storage. It is a super accelerator for natural rubber, synthetic rubber and latex, the latex which containing ZDBC can be used for a week without early vulcanization phenomenon. It has the function of antiaging agent in the mixing rubber, can improve the aging resistance of vulcanized rubber, no color, no pollution, and easy to disperse. It is often used for low temperature vulcanized mortar, vulcanizing faster than EZ and PZ.
ZDEC chemical name is zinc diethyl dithiocarbamate, white powder, soluble in 1% NaOH solution, carbon disulfide, benzene, chloroform, insoluble in gasoline. ZDEC is used as a superaccelerator for NR, synthetic rubber and latex, especially for butyl rubber, EPDM and latex, non-toxic, inodorous, it can be used as white or brilliant color and transparent rubber manufactures.
4.ZEPC(PX)
ZEPC chemical name is zinc ethyl phenl dithiocarbamate, white powder, odorless and non-toxic, soluble in hot chloroform, hot benzene, slightly soluble in gasoline, benzene, toluene, hot alcohol, insoluble in acetone, carbon tetracloride, ethanol and water. It is a super accelerator which is safer to operate, especially suitable for latex vulcanization. It can be used to make impregnated latex products in contact with food and transparent and brilliant products, medical supplies, latex model products, impregnated products, latex sponge, tape, self-sulfur glue and so on. It can also be used as activator of thiazole accelerators.
ZBEC chemical name is zinc dibenzyl dithiocarbamate, white powder, soluble in ethanol, benzene and chloroform, insoluble in water. ZBEC is a new type of environmental protection secondary thiocarbamate vulcanization accelerator. It does not produce carcinogenic nitrosamine in the use process, the vulcanization activity temperature is low, the operation is safer, has the longest anti-coke performance, can be used to replace PZ, EZ, ZDBC, TMTM, etc.
6.TDEC
TDEC chemical name is diethyl thio-carbamate tellurium, yellow powder, relative density of 1.48, soluble in chloroform, benzene and carbon disulfide, slightly soluble in alcohol and gasoline, insoluble in water. It is used as a natural rubber and synthetic rubber overspeed vulcanization accelerator, generally with thiazole, secondary sulfonamide accelerator, mainly used in the manufacture of inner tube, cable insulation layer, hose, etc.
7.CDMC(CDD)
CDMC chemical name is dimethyldithiocarbamate, it has a slight rubber staining property and is suitable for NR, SBR, NBR, IIR and EPDM systems, especially for SBR, IIR and EPDM systems. The efficiency of promoting vulcanization is better than TT, PX, etc.
Author: WYY – Dalian Richon Chem Co., Ltd.
Dated: 2021-08-26
Richon glad to introduce thiuram accelerators are a very important class of accelerators. It includes thiuram monosulfide, thiuram disulfide and thiuram polysulfide. Among them, thiuram disulfide and thiuram polysulfide can release active sulfur or sulfur-containing free radicals at standard vulcanization temperatures, so they can be used as vulcanizing agents.
The thiuram accelerator has a thiuram derivative with the general structural formula (R, R'are alkyl, aryl, cycloalkyl, etc.; x = 1 to 6). Including thiuram monosulfide, thiuram disulfide and thiuram polysulfide. It is an acidic super accelerator with activity between dithiocarbamate and thiazole accelerators. It is generally used as a second accelerator to increase the vulcanization speed and vulcanization degree of thiazole and sulfenamide accelerators. . Disulfide and polysulfide thiuram can release active sulfur at standard vulcanization temperatures, and can be used as a sulfur donor in sulfur-free vulcanization systems.
Representative varieties are tetramethylthiuram monosulfide (TMTM), tetramethylthiuram disulfide (TMTD), tetraethylthiuram disulfide (TETD), tetramethylthiuram disulfide ( DPTT) and so on.
Dalian Richon Chemical Co., Ltd. can provide you with TMTD (TT), TETD, TMTM, TRA (DPTT), TiBTD, TBzTD, TBTD, these thiuram accelerators.
TMTD is a general-purpose accelerator for natural rubber and synthetic rubber. It is also widely used as a fungicide and seed soaking agent in agriculture. Rubber accelerator TMTD is an excellent second accelerator for thiazole accelerators. It can also be used with other accelerators as an accelerator for continuous vulcanization of rubber particles. Usually it can also be used with accelerator MBT (M). In this case, it can be used with butyl rubber. The vulcanization is basically similar. The accelerator is mainly used in the manufacture of tires, inner tubes, rubber shoes, medical supplies, cables, industrial rubber products, etc. It is used as a fungicide and insecticide in agriculture, and can also be used as a lubricant additive.
2. TMTM (TS)
TMTM is a green and environmentally friendly rubber vulcanization accelerator. It can be used not only as a vulcanizing agent, but also as an effective activator for thiazole and sulfenamide accelerators. It has the function of a secondary accelerator and makes the dispersion of thiazole and sulfenamide more good, and the product is transparent. . It is widely used in natural rubber, diene synthetic rubber, isobutyl rubber, ternary isopropyl rubber, W-type chloroprene rubber. It can be used to prepare wires, cables, rubber boots, Toys, transparent products, waterproof cloth, medical rubber products, gloves, etc.
3. DPTT(TRA)
DPTT is a white or gray-yellow powder. It is soluble in carbon disulfide, chloroform and carbon tetrachloride, but insoluble in water. It can be used for natural rubber, diene synthetic rubber, butyl rubber, EPDM rubber, chlorosulfonated polyethylene and latex. Free sulfur can be decomposed by heating, and it can also be used as a vulcanizing agent. The effective sulfur content is 25% of its weight. When used as a vulcanizing agent, this product is relatively safe at operating temperature, and the vulcanized rubber has excellent heat resistance and aging resistance. This product is easy to disperse in dry rubber and water. No pollution. Generally used in the manufacture of heat-resistant products, cables, etc.
4. TBzTD
The rubber accelerator TBzTD is to replace TMTD, mainly because thiuram accelerators are prone to produce carcinogenic nitrosamines, while diphenylnitrosamines are not carcinogenic. It is used as an accelerator or secondary accelerator for NR, SBR, EPDM, NBR systems. It is safer and has a longer anti-scorch time than TMTD. It is sometimes used as a PVC rubber vulcanization inhibitor.
DalianRichon Chemical Co., Ltd. provides a domestic 2021 TMTD price trend chart.
Dalian Richon note recently TMTD’s price increased very sharply because raw materials’ price up so much.
Author: MYJ – Dalian Richon Chem Co., Ltd.
Dated: 2021-08-26