cn103102328a-preparation method of rubber accelerator
CN103102328A - Preparation method of rubber accelerator NS
According to the preparation method, oxygen is adopted as the oxidizer, waste water contains no inorganic salt, and a preparation process is simple and environment-friendly. CN103102328A - Preparation method of rubber accelerator NS (N-tert-butyl benzothiazole-2-sulphenamide) - Chemical Patents
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n-tertiary butyl-2-benzothiazole sulfenamidetbbs ns
CN103102328A - Preparation method of rubber accelerator NS Translate this page The invention relates to a preparation method of a rubber accelerator, in particular to a preparation method of a rubber accelerator NS (N-tert-butyl benzothiazole-2-sulphenamide).
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CN103755613A - Preparation method of rubber vulcanization
The method comprises the following steps: adding a solution of dibenzylamine-xylene mixture into a container, and adding a surfactant, a catalyst and zinc oxide; heating to certain temperature, and dropwise adding carbon disulfide into the mixture; stirring and reacting for certain time, and filtering out the product zinc dibenzyl dithiocarbamate from the reaction mixture; adding water into the filtered product for azeotropic distillation with the water to obtain a high-purity product.
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Vulcanization & Accelerators
between sulfur and the Rubber Hydrocarbon occurs mainly aC (doublet the C = bonds ) and each crosslink requires 40 to 55 sulphur atoms (in the absence of accelerator). The process takes around 6 hours at 140°C for completion, which is uneconomical by any production standards. The vulcanizates thus produced are
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CN101215273A - Method of producing rubber vulcanization
The invention discloses a novel production process of rubber vulcanization accelerator DM, which comprises adding 10-500g M-NH3 salt into a reactor, dripping mixture solution of hydrogen peroxide solution with 1-35% concentration and sulfuric acid with 1-70% concentration at a flow rate of 5-900ml/min, stirring to react for 30-300 minutes under the conditions of 20-190 DEG C and 100-3500 rotation/min rotary speed taking sample and testing pH value, stopping reaction when pH value reaches to ...
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Rubber accelerator TBBS synthesis method and the situation
Rubber accelerator TBBS synthesis method and the situation in China. Aksu, biotechnology and other companies have reported a patent. This method reaction speed, good selectivity and high yield.Akzo company's patent describes the melting point up to 108 ~ 110 ℃, the yield was 99.8%.
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CN101717379A - Production method of rubber vulcanizing
The invention discloses a production method of a rubber vulcanizing accelerator CBS, relating to the production of the rubber vulcanizing accelerator CBS. The production method sequentially comprises the following step of: a, preparing 560 to 700 kg of mixed liquid in the volume ratio of 1 : 0.6 to 1.0 of water to cyclohexane; b, adding the mixed liquid in an oxidizing kettle, adding 450 to 550 kg of accelerators M when the temperature in the kettle is 30 to 50 DEG C and the stirring ...
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Vulcanization Accelerators - CROW
Accelerators for Sulfur Vulcanization of Rubbers. Accelerator also decreases the amount of sulfur needed to cross-link the polydiene, which improves the aging properties of the vulcanized rubber. Some of the accelerators also function as sulfur donors and thus, allow vulcanization to proceed at lower sulfur content.
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Characterisation of Crosslinks in Vulcanised Rubbers: From
swelling method. A good solvent (for the unvulcanised rubber) should be used such that the crosslinked rubber can absorb and swell as much as possible until the retractive
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TEST METHODS OF RUBBER MATERIALS AND PRODUCTS
complex procedures are used and instrumental analytical methods are applied in chemical analyses of vulcanizates. This part explains principles of instrumental analyses used in rubber-making practice. Chapter “Rubber Compound and Vulcanizate Testing” is related to the chapter on “Rubber Raw Material Testing” and provides a
Send InquiryCN103102328A - Preparation method of rubber accelerator NS
According to the preparation method, oxygen is adopted as the oxidizer, waste water contains no inorganic salt, and a preparation process is simple and environment-friendly. CN103102328A - Preparation method of rubber accelerator NS (N-tert-butyl benzothiazole-2-sulphenamide) - Chemical Patents
Send Inquiry
n-tertiary butyl-2-benzothiazole sulfenamidetbbs ns
CN103102328A - Preparation method of rubber accelerator NS Translate this page The invention relates to a preparation method of a rubber accelerator, in particular to a preparation method of a rubber accelerator NS (N-tert-butyl benzothiazole-2-sulphenamide).
Send InquiryCN103755613A - Preparation method of rubber vulcanization
The method comprises the following steps: adding a solution of dibenzylamine-xylene mixture into a container, and adding a surfactant, a catalyst and zinc oxide; heating to certain temperature, and dropwise adding carbon disulfide into the mixture; stirring and reacting for certain time, and filtering out the product zinc dibenzyl dithiocarbamate from the reaction mixture; adding water into the filtered product for azeotropic distillation with the water to obtain a high-purity product.
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Preparation of Synthetic Rubber
Rinse the Thiokol rubber at least twice with 4 to 5 mL of water. Dispose of the wash water in a waste bottle. Then, remove the rubber from the vial and rinse it very well with tap water. Place the washed rubber on a paper towel, squeeze out any excess liquid, place under a hood to dry. Once the rubber is dry, weight it and record the mass. Part 2.
Send Inquiry[Preparation of Rubber Accelerator Zinc
In the study, rubber accelerator Zinc diethyldithiocarbamate (EZ) was synthesized firstly. Complex EZ of single crystal was cultivated by solvent evaporation method. EZ was detected and characterized by XRD single crystal diffraction, FTIR and TG-DSC. The micro-structure and intrinsic regularity were revealed.
Send InquiryPreparation method for rubber accelerator CBS - Knowledge
The present invention is in the preparation of rubber chemicals, in particular, it relates to a method for preparing a rubber accelerator CBS.. China's rubber industry in recent years has achieved sustained, rapid and healthy development. Raw rubber consumption for six consecutive years to maintain the world, are growing at double-digit rates each year.
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CN101215273A - Method of producing rubber vulcanization
The invention discloses a novel production process of rubber vulcanization accelerator DM, which comprises adding 10-500g M-NH3 salt into a reactor, dripping mixture solution of hydrogen peroxide solution with 1-35% concentration and sulfuric acid with 1-70% concentration at a flow rate of 5-900ml/min, stirring to react for 30-300 minutes under the conditions of 20-190 DEG C and 100-3500 rotation/min rotary speed taking sample and testing pH value, stopping reaction when pH value reaches to
Send Inquiry
Rubber accelerator TBBS synthesis method and the situation
Rubber accelerator TBBS synthesis method and the situation in China. Aksu, biotechnology and other companies have reported a patent. This method reaction speed, good selectivity and high yield.Akzo company's patent describes the melting point up to 108 ~ 110 ℃, the yield was 99.8%.
Send Inquiry