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High-fluidity elastomer and preparation method thereof

A high fluidity, elastomer technology, applied in the field of thermoplastic elastomers and their preparation, can solve the problems of high viscosity and poor fluidity

Inactive Publication Date: 2016-12-14
广州市新稀冶金化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The limitations of this high molecular weight thermoplastic elastomer are high viscosity and poor flow, thus limiting the use of

Method used

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  • High-fluidity elastomer and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0026] All the materials involved were placed in a vacuum drying oven and dried for 8 hours for later use. First, 10 kg of elastomers were crushed using the low-temperature liquid nitrogen freezing and crushing equipment owned by the company, and then 100 g of lubricants (75 g hard Zinc fatty acid and 25g solid paraffin mixture), 10g Ca-Zn stabilizer are added to the high-speed mixer that has been preheated to a certain temperature and mixed evenly, then slowly add 100g plasticizer (80g phthalic acid di octyl ester and 20g dioctyl sebacate). Due to the internal heat generated by high-speed mixing, add 5g of n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate and the mixing temperature will rise to 100°C~105°C. At this time, Dioctyl phthalate and dioctyl sebacate are absorbed by the elastomer powder, resulting in swelling, and other ingredients are also uniformly dispersed in the mixture. Then put the material into the cooling mixer, when it drops to 50°C, add 50g of ...

Embodiment 2

[0028]All the materials involved were placed in a vacuum drying oven and dried for 8 hours for later use. First, 10 kg of elastomers were crushed using the low-temperature liquid nitrogen freezing and crushing equipment owned by the company, and then 500 g of lubricants (275 g hard Zinc fatty acid and 225g solid paraffin mixture), 50g Ca-Zn stabilizer were added to the high-speed mixer that has been preheated to a certain temperature and mixed evenly, then slowly added 1kg plasticizer (800g phthalic acid di octyl ester and 200g dioctyl sebacate). Due to the internal heat generated by high-speed mixing, add 5g of n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate and the mixing temperature will rise to 100°C~105°C. At this time, Dioctyl phthalate and dioctyl sebacate are absorbed by the elastomer powder, resulting in swelling, and other ingredients are also uniformly dispersed in the mixture. Then put the material into the cooling mixer, when it drops to 50°C, add 50...

Embodiment 3

[0030] All the materials involved were placed in a vacuum drying oven and dried for 8 hours for later use. First, 10 kg of elastomers were crushed using the low-temperature liquid nitrogen freezing and crushing equipment owned by the company, and then 500 g of lubricants (275 g hard Zinc fatty acid and 225g solid paraffin mixture), 50g Ca-Zn stabilizer are added to the high-speed mixer that has been preheated to a certain temperature and mixed evenly, then slowly add 100g plasticizer (80g phthalic acid di octyl ester and 20g dioctyl sebacate). Due to the internal heat generated by high-speed mixing, add 10g of n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate and the mixing temperature will rise to 100°C~105°C. At this time, Dioctyl phthalate and dioctyl sebacate are absorbed by the elastomer powder, resulting in swelling, and other ingredients are also uniformly dispersed in the mixture. Then put the material into the cooling mixer, when the temperature drops to 5...

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Abstract

The invention discloses a high-fluidity elastomer and a preparation method thereof. A low-temperature liquid nitrogen refrigeration smashing device of the company is utilized to smash an elastomer, a lubricating agent, a plasticizer, a function additive and other assistants are utilized to conduct surface modification on smashed elastomer particles, the surface energy of the particles is reduced, the friction among the particles is reduced, and the lubricity of the particle surfaces is improved. Therefore, the elastomer has higher liquidity and excellent processing performance. The assistants in the inside do not easily migrate, the elastomer has higher heat stability and weather resistance, does not easily oxidize, is difficult to volatilize, has excellent electrical insulation properties, belongs to an environmentally friendly high-fluidityelastomer, is low in cost and suitable for large-scale industrial production, can be applied to special buffering materials, can also greatly serve as the material required for top-grade home furnishing and can be further used for efficient synergists, flame retardants and the like of high-performance foaming materials, shoe materials, top-grade hot melt adhesives and other hot melt adhesives.

Description

technical field [0001] The invention relates to a thermoplastic elastomer and a preparation method thereof, in particular to a high fluidity elastomer and a preparation method thereof. Background technique [0002] At present, the thermoplastic elastomer industry has developed to a very high level, its commercial status is becoming more and more important, new varieties are constantly emerging, and there are more and more manufacturers. The main reason is that thermoplastic elastomers have the physical and mechanical properties of vulcanized rubber and the processing properties of soft plastics. Since it does not need to be vulcanized like rubber, it can be easily made into the final product using simple plastic processing machinery. My unit is mainly researching modified SBS and SEBS for automobile sealing strips, so the research direction is SBS and SEBS thermoplastic elastomers. [0003] Thermoplastic elastomers have high elasticity, high modulus, aging resistance, and ...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L33/04C08K5/04C08K5/098C08K5/12C08K5/11C08K5/134B29C47/92B29C48/92
CPCC08L53/02B29C48/92B29C2948/92704C08L53/025C08L2205/025C08L2205/035C08L2207/04C08L33/04C08K5/04C08K5/098C08K5/12C08K5/11C08K5/1345
Inventor 杨雪英陈建山钟学群刘民
Owner 广州市新稀冶金化工有限公司
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