Thermoplastic elastomer and its production method

A thermoplastic elastomer and production method technology, applied in the field of insulation and sheath materials, vulcanization-free high-elasticity thermoplastic elastomers, can solve the problems of reduced service life, slow reaction, blackening, etc., to save production costs, flex resistance Strong, low compression set effect

Inactive Publication Date: 2006-01-25
闫俊龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CL in polyvinyl chloride -1 , the stabilizer used has Sn +2 , Pb +2 、Cd +2 、Cr +6 Harmful ions, such as wires, cables, or sealing strips, will react slowly during use, releasing HCL harmful gases and polluting the environment
Rubber vulcanization aids include toxic substances such as sulfur, thiazole, thiuram, carbamate, and thiourea, and most of the by-products generated by the reaction also contain toxic substances; steam vulcanization technology is used in production lines and cable processes, and boiler fuel combustion Produce flue gas and waste residue discharge, causing serious pollution to the environment, and it is operated at high temperature and high pressure, the operation process is complex and dangerous
Another defect of the vulcanization process is that the copper wires are polluted and blackened due to the corrosion of sulfur on the copper wires, which affects the quality and reduces the service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Component:

[0019] 100 parts of styrene-butadiene-styrene block copolymer (SBS YH-815);

[0020] 40 parts of naphthenic oil;

[0021] 1 part barium stearate;

[0022] 2 parts of calcium-zinc composite stabilizer;

[0023] 2 parts stearic acid;

[0024] 3 parts paraffin;

[0025] Production method: put quantitative styrene-butadiene-styrene block copolymer (SBS) and naphthenic oil in a mixer, stir well, and release. Let it rest in the container for 4-8 hours to allow it to fill with oil and set aside. Then add the oil-extended styrene-butadiene-styrene block copolymer (SBS) and additives into the mixer at a temperature of 70-100°C and stir thoroughly for 15-20 minutes. The screw plastic extruder is plasticized at a temperature of 120°C-140°C, and cut into cylindrical granules with a volume equivalent to 4mm×4mm×3mm or 3mm×3mm×3mm by hot cutting or cold cutting equipment, and the finished product is packaged after cooling ;

[0026] Embodiment 1 of the present in...

Embodiment 2

[0028] Component:

[0029] 100 parts of styrene-butadiene-styrene block copolymer (SBS YH-815);

[0030] 40 parts of naphthenic oil;

[0031] 40 parts of polystyrene (PS666D);

[0032] 1 part barium stearate;

[0033] 2 parts of calcium-zinc composite stabilizer;

[0034] 2 parts stearic acid;

[0035] 3 parts paraffin;

[0036] Production method: with embodiment 1

Embodiment 3

[0038] Component:

[0039] 100 parts of styrene-butadiene-styrene block copolymer (SBS YH-815);

[0040] 40 parts of naphthenic oil;

[0041] 40 parts of polystyrene (PS666D);

[0042] 100 parts of light calcium carbonate;

[0043] Softener-white oil 35 parts;

[0044] 1 part barium stearate;

[0045] 2 parts of calcium-zinc composite stabilizer;

[0046] 2 parts stearic acid;

[0047] 3 parts paraffin;

[0048] Production method: Same as Example 1, in the above examples, the larger the amount of filler, the more softener naphthenic oil or white oil needs to be added.

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Abstract

The invention provides a high elasticity thermal plasticity elastic body and the method to make. The weight proportion of the elastic body includes: plasticity ingredient styrene-butadiene-styrene block copolymer 100, filling naphthenic oil or white oil 40-60, modification agent 0-110, stabilizing agent 2-10, lubricant 2-65, and other bulk agent 10-300. The invention has advantages of low compression deformation, strong flexing resistance and good resilience.

Description

technical field [0001] The invention relates to a vulcanization-free high-elastic thermoplastic elastomer, which is especially suitable for insulation and sheath materials of wires and cables; high-elasticity and environment-friendly rubber hoses, rubber ropes, and glue sticks in fitness equipment; elastic soles; automobiles and motor vehicles, aluminum A plastic door and window sealing strip and a sealing part belong to the technical field of plastic or rubber materials. Background technique [0002] At present, in my country's wire and cable industry, insulation and sheath materials, automobiles and motor vehicles, aluminum-plastic door and window seals and seals are mostly used in polyvinyl chloride plastics and natural rubber, styrene-butadiene rubber, neoprene, ethylene-propylene rubber, etc. vulcanized elastomer. CL in polyvinyl chloride -1 , the stabilizer used has Sn +2 , Pb +2 、Cd +2 、Cr +6 Harmful ions such as HCL, the produced wire, cable products or sealing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08K13/02B29C47/00B29B9/12
Inventor 闫俊龙郑志在闫体景孙文普闫淑敏孙彦宏赵保平陈延彬谷建锁李志坡
Owner 闫俊龙
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