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Modified PVC pellet and preparation method thereof

A PVC resin and modification technology, applied in building thermal insulation materials, building components, buildings, etc., can solve other problems such as damage to performance and not very obvious effects, and achieve the improvement of performance, compatibility, and high temperature resistance. Effect

Inactive Publication Date: 2018-12-28
界首永恩机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silica airgel can be used as a filler in the processing of organic materials. However, although direct use has a certain strengthening effect, it will cause greater damage to other properties, and the effect is not very obvious.

Method used

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  • Modified PVC pellet and preparation method thereof
  • Modified PVC pellet and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A modified PVC pellet prepared by using the following raw materials by weight:

[0034] 55 parts of PVC resin, 3.8 parts of plasticizer, 0.8 parts of anti-aging agent, 13 parts of modified silica airgel;

[0035] The preparation method of the modified silica airgel comprises the following steps:

[0036] (1) Add attapulgite to 3-5 times its weight in a nitric acid solution with a mass fraction of 5% and soak for 10-15 minutes, then wash it with deionized water for 3-4 times, and then treat it at 425°C for 2.5 hours. Add the treated attapulgite to 4 times its weight in deionized water, and stir for 18-20 minutes to disperse the attapulgite to form a suspension;

[0037] (2) To prepare modified asphalt, crush the asphalt, pass through a 200-mesh sieve, mix the asphalt with 1% oxalic acid solution in a weight ratio of 1:2, and then add 2.5% by weight of asphalt Methyl ammonium bromide, stirred at 480-500r / min for 22min, then heated up to 124°C, stirred at 1350r / min for 1...

Embodiment 2

[0049] A modified PVC pellet prepared by using the following raw materials by weight:

[0050] 55 parts of PVC resin, 4.2 parts of plasticizer, 0.9 parts of anti-aging agent, and 12 parts of modified silica airgel.

Embodiment 3

[0052] A modified PVC pellet prepared by using the following raw materials by weight:

[0053] 58 parts of PVC resin, 4.5 parts of plasticizer, 0.9 parts of anti-aging agent, 14 parts of modified silica airgel;

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Abstract

The invention relates to a modified PVC pellet and a preparation method of the modified PVC pellet. The modified PVC pellet is prepared from the following raw materials by weight: 50-60 parts of PVC resin, 3-5 parts of plasticizer, 0.8-1 part of antiager, and 12-15 parts of modified silicon dioxide aerogel. The plasticizer and the antiager are added in the preparation process of the PVC pellet inthe application so as to further improve the flame retardant efficiency and the high temperature resistance effect of the PVC; the modified silicon dioxide aerogel is added in the raw materials in theapplication, and the silicon dioxide aerogel is modified after being added, so that the compatibility of the silicon dioxide aerogel and the PVC resin material is obviously improved, and the flame retardance and the high temperature resistance property of the material are improved.

Description

technical field [0001] The invention belongs to the field of environmentally friendly new materials, and in particular relates to a modified PVC pellet and a preparation method thereof. Background technique [0002] Polyvinyl chloride can be made by substitution reaction of ethylene, chlorine and catalyst. Due to its fire resistance and heat resistance, PVC is widely used in various products in various industries: wire sheath, optical fiber sheath, shoes, handbags, bags, accessories, signs and billboards, building decoration products, door curtains, rolling doors , Auxiliary medical supplies, gloves, some food fresh-keeping paper, some fashions, etc. However, PVC needs to be added with various fillers to improve the performance of the resin. [0003] Airgel, also known as xerogel. When most of the solvent is removed from the gel, so that the liquid content in the gel is much less than the solid content, or the space network structure of the gel is filled with gas, and the ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L95/00C08K13/06C08K9/02C08K9/06C08K9/04C08K3/34C08K7/14C08K3/36C08K5/12
CPCC08L27/06C08L2201/02C08L2201/08C08L95/00C08K13/06C08K9/02C08K9/06C08K9/04C08K9/08C08K3/346C08K7/14C08K3/36C08K5/12
Inventor 张海涛
Owner 界首永恩机电科技有限公司
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