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Toughening high-strength weather-resistant PVC composition special for boards and preparation method of toughening high-strength weather-resistant PVC composition

A high-strength, composition technology, applied in the field of plates, can solve the problems of insufficient weather resistance, poor impact strength, poor toughness, etc., and achieve the effects of low production cost, good weather resistance and corrosion resistance, and good toughness.

Inactive Publication Date: 2019-07-26
广东南牧新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a special toughened high-strength weather-resistant PVC composition for boards and its preparation method, so as to solve the problems of poor toughness, poor impact strength and insufficient weather resistance of general-purpose PVC boards and other defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A special toughened high-strength weather-resistant PVC composition for boards, which is made of the following raw materials according to the weight ratio: 100 parts of PVC resin, 5 parts of rare earth calcium zinc stabilizer, 5 parts of rutile titanium dioxide, and impact-resistant ACR modifier 6 parts, 6 parts of impact-resistant CPE modifier, 1.2 parts of linear PVC processing aid, 1.2 parts of antioxidant tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester , 8 parts of light active calcium carbonate, 0.8 part of high-density oxidized polyethylene wax as lubricant, and 0.06 part of ultramarine blue.

[0021] A special toughened high-strength weather-resistant PVC composition for boards and a preparation method thereof include the following steps:

[0022] (1) Mix the above raw material components in proportion; (2) Put the ingredients in step (1) into the hot mixer for mixing and prepare the mixture. When the temperature of the hot mixer...

Embodiment 2

[0024] A special toughened and high-strength weather-resistant PVC composition for boards, which is made of the following raw materials according to the weight ratio: 100 parts of PVC resin, 5.5 parts of rare earth calcium zinc stabilizer, 5 parts of rutile titanium dioxide, and impact-resistant ACR modifier 6 parts, 7 parts of impact-resistant CPE modifier, 1.2 parts of linear PVC processing aid, 1.3 parts of antioxidant tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester , 6 parts of light activated calcium carbonate, 0.8 part of lubricant high-density oxidized polyethylene wax, 0.1 part of ultramarine blue.

[0025] A special toughened high-strength weather-resistant PVC composition for boards and a preparation method thereof include the following steps:

[0026] (1) Mix the above-mentioned raw material components in proportion; (2) Put the ingredients in step (1) into the hot mixer for mixing and prepare the mixture. When the temperature of th...

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Abstract

The invention relates to a toughening high-strength weather-resistant PVC composition special for boards and a preparation method of the toughening high-strength weather-resistant PVC composition. Thetoughening high-strength weather-resistant PVC composition is characterized by comprising, by weight, 100 parts of PVC resin, 4-6 parts of stabilizer, 3-10 parts of titanium dioxide, 5-16 parts of impact modifier, 1-3 parts of processing aid, 0.5-2 parts of antioxidant, 3-12 parts of calcium carbonate, 0.1-1 part of lubricating agent and 0.01-0.1 part of pigment. The preparation method includes:weighing the materials, blending in a blender, and discharging to obtain the toughening high-strength weather-resistant PVC composition. The toughening high-strength weather-resistant PVC compositionand the preparation method thereof have the advantages that the impact modifier ACR and CPE are used, and the synergistic use of the two allows the PVC boards to have good toughness and tensile strength; by adding the stabilizer and the antioxidant, the PVC boards have excellent weather resistance, and the problem of vulcanization pollution generation is avoided; PVC boards excellent in performance can be prepared by the method, and low manufacturing cost, simple production process and large-scale industrial production can be achieved.

Description

technical field [0001] The invention belongs to the technical field of boards, and in particular relates to a special toughened high-strength weather-resistant PVC composition for boards and a preparation method thereof. Background technique [0002] In the field of board applications, polyvinyl chloride (PVC) boards are widely used in construction and extrusion processing because of their excellent waterproof, sound insulation and thermal insulation properties. PVC sheet is mainly made of PVC resin combined with processing aids such as plasticizers and stabilizers, and then processed by extrusion or calendering, among which extrusion processing is the main method. However, it is worth noting that due to the relatively unstable α-cl in the PVC molecular chain structure, it is easy to degrade during processing and molding, which in turn leads to defects in PVC products, such as poor toughness and low impact strength at room temperature, and In the long-term outdoor use, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L33/04C08L23/28C08L23/06C08K13/02C08K3/22C08K5/134C08K3/26
CPCC08K2003/2241C08K2003/265C08L27/06C08L2201/08C08L2205/025C08L2205/035C08L33/04C08L23/286C08L23/06C08K13/02C08K3/22C08K5/1345C08K3/26
Inventor 王成望李鹏伟白洁曹日文黄建文
Owner 广东南牧新材料科技有限公司
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