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Mute heat-insulating slow-rebound rubber and plastic and preparation method thereof

A slow rebound, rubber and plastic technology, applied in the field of rubber and plastic foam sponge, can solve the problems of poor sound absorption and shock absorption, permanent damage, insufficient flexibility, etc., to improve physical properties, uniformity, and sound absorption Effect of effect improvement

Inactive Publication Date: 2020-05-01
WINCELL INSULATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ordinary rubber and plastic products have relatively high pressure, insufficient flexibility, high resilience, high closed cell rate, and good heat insulation effect, but they are prone to permanent damage under external impact, and the sound absorption and shock absorption effects are not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing silent, heat-insulating, slow-resilient rubber and plastic, including the following steps:

[0034] 1) Put 60 parts of low-density polypropylene, 20 parts of ethylene-octene copolymer, 15 parts of talcum powder, 2 parts of dispersant and 2 parts of paraffin wax into the plastic internal mixer. When the banburying temperature rises to 116℃ , Then add 10 parts of high-temperature foaming agent AC, 3 parts of calcium carbonate, 3 parts of carbon black and 1 part of zinc oxide, discharge after banburying for 5-10 minutes, cool and press to make a film, leave it for 48h for later use;

[0035] 2) Pour the film obtained in (1) into the secret mixing chamber, and pour 20 parts of natural rubber latex, vulcanizing agent S-802 parts, low temperature foaming agent 0.9 parts, and 2 parts zinc dimethyl dithiocarbamate in sequence , 0.5 parts of di-o-toluidine guanidine, 0.5 parts of sodium silicofluoride and 1.5 parts of anti-aging agent, banbury to 90 ℃ for about...

Embodiment 2

[0041] A method for preparing silent, heat-insulating, slow-resilient rubber and plastic, including the following steps:

[0042] 1) Put 60 parts of low-density polypropylene, 25 parts of ethylene-octene copolymer, 15 parts of talc powder, 2 parts of dispersant and 2 parts of paraffin wax into the plastic internal mixer. When the banbury temperature rises to 116℃ , Then add 11 parts of high-temperature foaming agent AC, 3 parts of calcium carbonate, 3 parts of carbon black and 1 part of zinc oxide, discharge after banburying for 5-10 minutes, cool and press to make a film, leave it for 48h for later use;

[0043] 2) Pour the film obtained in (1) into the secret mixing chamber, and pour 20 parts of natural rubber latex, S-802 parts of vulcanizing agent, 1 part of low temperature foaming agent ACP, and 2 parts of zinc dimethyl dithiocarbamate in sequence , 0.5 parts of di-o-toluidine guanidine, 0.5 parts of sodium silicofluoride and 1.5 parts of anti-aging agent, banbury to 90 ℃ for ...

Embodiment 3

[0049] A method for preparing silent, heat-insulated and slow-rebound rubber and plastic, including the following steps:

[0050] 1) Put 60 parts of low-density polypropylene, 25 parts of ethylene-octene copolymer, 15 parts of talc powder, 2 parts of dispersant and 2 parts of paraffin wax into the plastic internal mixer. When the banbury temperature rises to 116℃ , Then add 11 parts of high-temperature foaming agent AC, 3 parts of calcium carbonate, 3 parts of carbon black and 1 part of zinc oxide, discharge after banburying for 5-10 minutes, cool and press to make a film, leave it for 48h for later use;

[0051] 2) Pour the film obtained in (1) into the secret mixing chamber, and pour 25 parts of natural rubber latex, S-802 parts of vulcanizing agent, 1 part of low-temperature foaming agent ACP, and 2 parts of zinc dimethyl dithiocarbamate. Parts, 0.5 parts of di-o-toluidine, 0.5 parts of sodium silicofluoride and 1.5 parts of anti-aging agent, banbury to 90℃ for about 15 minutes,...

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PUM

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Abstract

The invention relates to mute heat-insulation slow-rebound rubber and plastic, which comprises the following raw materials: low-density polypropylene, an ethylene-octene copolymer, natural latex, a vulcanizing agent, a filler talcum powder, a reinforcing agent, an accelerant, an active agent, a dispersing agent, a foaming agent, an anti-aging agent, sodium silicofluoride and paraffin. By adding the latex raw material, the latex has the characteristics of excellent resilience, supporting property, shock absorption and compression fatigue resistance, so that the prepared plastic foamed sponge has the characteristics of the rubber, and the toughness, the flexing resistance and the tearing strength of the plastic, and also has the advantages of good softness, ultrahigh resilience and creep resistance.

Description

Technical field [0001] The invention relates to the technical field of rubber-plastic foamed sponges, in particular to a silent, heat-insulating, slow-resilient rubber-plastic and a preparation method thereof. Background technique [0002] Rubber-plastic sponge is a closed-cell material, which has the advantages of low density, good elasticity, and small permanent deformation due to compression. Therefore, it is widely used in automobiles, shoe materials, furniture and construction materials. [0003] Ordinary rubber and plastic products have relatively high pressure, insufficient flexibility, high resilience, high closed cell rate and good heat insulation effect, but they are prone to permanent damage under external impact, and have poor sound absorption and shock absorption effects. Summary of the invention [0004] Aiming at the shortcomings of the prior art, the present invention provides a silent, heat-insulating, slow-rebound rubber plastic with low resilience and capable of b...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L7/02C08K13/02C08K3/34C08J9/10
CPCC08J9/103C08J9/0061C08J9/0095C08J9/0066C08J2203/04C08J2323/12C08J2423/08C08J2407/02
Inventor 秦伯进张君秦天德刘远斌翟必赢谢存剑曹鑫徐乐
Owner WINCELL INSULATION CO LTD
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