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Novel vulcanization system-containing chlorinated polyethylene mixed rubber and processing technology

A technology of chlorinated polyethylene and vulcanization system, which is applied in the field of rubber processing, can solve the problems of unseen reports and researches on chlorinated polyethylene compound rubber, high cost, etc., and achieve excellent performance, short vulcanization time and wide vulcanization temperature range Effect

Inactive Publication Date: 2014-03-05
烟台恒鑫化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Nie Jun, Wang Shengyuan and others published "Research on CM Thiadiazole Vulcanization System" in the Special Rubber Products Journal in June 2005, and explained the effect of the dosage ratio of thiadiazole vulcanization system on the mechanical properties of chlorinated polyethylene rubber. Influence, obtained the optimal dosage of vulcanizing agent and accelerator, but involved vulcanizing agent and vulcanization accelerator are German product TDD and NC, relate to vulcanization system different with the present invention, and cost is higher
[0008] After searching, there is no report or research on the production of chlorinated polyethylene compound rubber using the domestic thiadiazole derivative system as the vulcanization system at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] by recipe

[0036] Chlorinated polyethylene 100

[0037] Light magnesium oxide 12

[0038] Calcium hydroxide 5

[0039] Methyl tin 0.5

[0040] Release agent 3

[0041] Carbon Black 60

[0042] Light calcium carbonate 30

[0043] Plasticizer 25

[0044] Domestic thiadiazole derivative vulcanizing agent 2.5

[0045] Accelerator 1

[0046]Prepare various raw materials, add chlorinated polyethylene, methyl tin, magnesium oxide and calcium hydroxide when the temperature of the internal mixer is about 110°C, add the reinforcing filling system and plasticizer after mixing evenly, and then add the desulfurizer Molding agent and vulcanizing agent are blended until the torque is balanced, and the material is discharged. It is thinly passed on the open mill for 5 times, and the lower sheet is cooled. When the temperature drops below 50°C, add an accelerator on the open mill. After the material is completely eaten, the thin pass 5 times, the next piece, to get the require...

Embodiment 2

[0048] by recipe

[0049] Chlorinated polyethylene 100

[0050] Light magnesium oxide 10

[0051] Calcium hydroxide 7

[0052] Methyl tin 0.5

[0053] Release agent 3

[0054] Carbon Black 50

[0055] Light calcium carbonate 60

[0056] Plasticizer 40

[0057] Domestic thiadiazole derivative vulcanizing agent 2.5

[0058] Accelerator 0.8

[0059] Prepare various raw materials, add chlorinated polyethylene when the temperature of the mill is about 80°C, add methyl tin, magnesium oxide and calcium hydroxide after the rolls are rolled into pieces, and mix them evenly, then fill the system with carbon reinforcement and enhancer Add the plasticizer, then add the mold release agent and vulcanizing agent, pass the material 5 times, cool the next piece, and when the temperature drops below 50°C, add the accelerator on the mill, pass the material 8 times , the next piece, to get the required rubber compound.

Embodiment 3

[0061] by recipe

[0062] Chlorinated polyethylene 100

[0063] Light magnesium oxide 10

[0064] Calcium hydroxide 6

[0065] Methyl tin 0.5

[0066] Release agent 3

[0067] Carbon Black 40

[0068] Light calcium carbonate 80

[0069] Plasticizer 58

[0070] Domestic thiadiazole derivative vulcanizing agent 3

[0071] Accelerator 1

[0072] Prepare various raw materials, add chlorinated polyethylene, methyl tin, magnesium oxide and calcium hydroxide when the temperature of the internal mixer is about 120°C, add the reinforcing filling system and plasticizer after mixing evenly, and then add the Molding agent and vulcanizing agent are blended until the torque is balanced, and the material is discharged. It is thinly passed on the open mill for 5 times, and the lower sheet is cooled. When the temperature drops below 50°C, add an accelerator on the open mill. After the material is completely eaten, the thin pass 8 times, the next piece, to get the desired rubber compou...

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PUM

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Abstract

The invention provides novel vulcanization system-containing chlorinated polyethylene mixed rubber and a processing technology, and relates to a novel vulcanization system of chlorinated polyethylene rubber mixed rubber and a processing technology for the mixed rubber. The system is composed of, by weight, 100 parts of chlorinated polyethylene, 8-20 parts of light magnesium oxide, 3-9 parts of calcium hydroxide, 0-2 parts of methyl tin, 0-5 parts of mold releasing agents, 20-200 parts of reinforcing filling agents, 10-100 parts of plasticizers and 2-6 parts of vulcanization crosslinking systems. The technology process relates to the mixing temperature and the charging sequence, and the mixed rubber which is mixed uniformly and suitable for processing products is ensured. When the mixed rubber is compared with traditional products, the vulcanization speed is fast, and the vulcanized rubber has good mechanical properties. The mixed rubber has low cost compared with foreign products with the same effects.

Description

technical field [0001] The invention belongs to the field of rubber processing, and relates to the formula and processing technology of chlorinated polyethylene rubber compound. Background technique [0002] Chlorinated polyethylene resin is a new type of synthetic material with a series of excellent properties. It is a synthetic rubber with good comprehensive properties and has a very wide range of applications. It has been widely used in cables, wires, hoses, tapes, rubber and plastic products, sealing materials, flame-retardant conveyor belts, waterproof rolls, films and various special-shaped materials. and other products. Chlorinated polyethylene can be regarded as a random copolymer of ethylene, polyethylene and 1,2-dichloroethylene. Its molecular chain is saturated and polar chlorine atoms are randomly distributed. Because of its excellent physical and chemical properties, it is widely used Used in machinery, electric power, chemical industry, building materials and...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08K13/02C08K3/04C08K3/26C08K3/34C08K3/36C08K5/57C08K5/46C08K5/11C08K5/12B29B7/74
CPCC08K13/02B29B7/286B29B7/726C08K3/22C08K5/57C08K2003/2206C08K2003/222C08L23/286
Inventor 张玉
Owner 烟台恒鑫化工科技有限公司
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