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Multi-layer coated elastomer toughened modified PVC (polyvinyl chloride) material

A PVC material and multi-layer coating technology, which is applied in the field of resin materials, can solve problems such as insufficient toughness, and achieve the effects of good compatibility, promotion of compatibility, and strong surface adsorption capacity

Pending Publication Date: 2022-01-25
福建亚通新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to achieve the above purpose of toughening modification, the present invention proposes a multi-layer coated elastomer to improve the problem of insufficient toughness of PVC

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A multi-layer coated elastomer toughened modified PVC material, including 50kg PVC, 3kg coated elastomer, 5kg montmorillonite, 1kg compound lubricant, 1.5kg calcium zinc stabilizer, 0.5kg macromolecular carboxylic acid compound.

[0030] The coated elastomer is composed of 2kg EVA and 1kg fumed silica.

[0031] The compound lubricant is compounded by 0.6kg paraffin wax and 0.4kg stearic acid.

[0032] The content of VA is 48% in the described EVA.

[0033] The preparation method of the coated elastomer is as follows: grind EVA and fumed silica together for 20 minutes, add 0.1 kg of ethyl acetate, grind again for 8 minutes, and obtain the coated elastomer after suction filtration and drying.

[0034] The preparation method of the multi-layer coated elastomer is as follows: add 0.5 kg of macromolecular carboxylic acid compound to 5 kg of montmorillonite, stir at 600 r / min for 20 minutes, and then suction filter to obtain activated modified montmorillonite. Add the abov...

Embodiment 2

[0037] A multi-layer coated elastomer toughened modified PVC material, including 50kg PVC, 5kg coated elastomer, 8kg Feishi, 1kg compound lubricant, 1.5kg calcium zinc stabilizer, 0.5kg macromolecular carboxylic acid compound .

[0038] The coated elastomer is composed of 3.5kg EVA and 1.5kg fumed silica.

[0039] The compound lubricant is compounded by 0.6kg paraffin wax and 0.4kg stearic acid.

[0040] The content of VA is 48% in the described EVA.

[0041] The preparation method of the coated elastomer is as follows: grind EVA and fumed silica together for 15 minutes, add 0.1 kg of ethyl acetate, grind again for 5 minutes, and obtain the coated elastomer after suction filtration and drying.

[0042] The preparation method of the multi-layer coated elastomer is as follows: add 0.8 kg of macromolecular carboxylic acid compound to 8 kg of phyllite, stir at 600 r / min for 25 minutes, and then obtain activated modified phyllite by suction filtration. Add the above-mentioned co...

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Abstract

The invention discloses a multilayer coated elastomer toughened modified PVC (polyvinyl chloride) material which comprises the following components in parts by weight: 100 parts of PVC, 5-10 parts of coated elastomer, 10-20 parts of filler, 2-3 parts of a compound lubricant, 2-5 parts of a calcium-zinc stabilizer and 1-2 parts of a macromolecular carboxylic acid compound. The filler is activated through surface modification of the macromolecular carboxylic acid compound, and the coated elastomer and the filler are compounded into a multi-layer coated elastomer. According to the multi-layer coated elastomer toughened modified PVC material, the idea of a rigid-flexible-rigid structure is adopted, the PVC material is reinforced, toughened and modified through the EVA elastomer and the filler together, the compatibility and dispersity of the filler are improved, and the toughness of the PVC material is improved.

Description

technical field [0001] The invention belongs to the technical field of resin materials, and in particular relates to a coated elastomer toughened and modified PVC material. Background technique [0002] Polyvinyl chloride (PVC) is one of the common plastics in the world. It is a non-flammable, corrosion-resistant, insulating, and inexpensive material. It is widely used in pipe fittings, strips, films, and building materials. However, due to the high glass transition temperature of PVC materials, the material is in a glass state at low temperatures, and the problem of material embrittlement is very obvious, so these PVC products have the defect of low temperature brittleness. Brittle cracks or even brittle fractures are prone to occur under the influence of external forces, which restricts the application fields of PVC products. Therefore, in the process of making PVC products, some toughening materials are usually added to make up for the defects of low temperature brittlen...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/08C08L91/06C08K9/10C08K3/36
CPCC08L27/06C08L23/0853C08L91/06C08K9/10C08K3/36
Inventor 马鑫陈晓梅林知李文权高洁彭伏弟曹静
Owner 福建亚通新材料科技股份有限公司
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