PVC (polyvinyl chloride) board with high inflaming retardance

A PVC board and high flame retardant technology, applied in the field of high flame retardant PVC board, can solve the problems of poor flame retardant effect and low safety performance, and achieve the effect of good flame retardant effect, normal color and high hardness

Inactive Publication Date: 2018-08-14
GUILIN QUANZHOU LIAOYUAN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current PVC board has poor flame retardant effect and low safety performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A high flame-retardant PVC board is composed of the following components by weight: 120 parts of PVC waste, 40 parts of calcium powder, 10 parts of stabilizers, 5 parts of tribasic lead sulfate, 3 parts of chlorinated paraffin, foaming 1 part of agent, 0.3 part of white foaming agent, 4 parts of flame retardant, 0.1 part of pigment;

[0032] The preparation steps are as follows:

[0033] (1) Weigh the raw materials by weight and mix them evenly at 65°C;

[0034] (2) Feed the uniformly mixed raw materials into the extruder for foaming, and then extrude through the extrusion die. The temperature of the extruder is controlled to 185°C, and the temperature of the cooling water flowing into the extrusion die is 12 ℃;

[0035] (3) Cool and shape the molten material leaving the extrusion die to obtain the high flame retardant PVC board.

Embodiment 2

[0037] A high flame-retardant PVC board is composed of the following components by weight: 130 parts of PVC waste, 65 parts of calcium powder, 15 parts of stabilizer, 8 parts of tribasic lead sulfate, 5 parts of chlorinated paraffin, foaming 3 parts of white foaming agent, 6 parts of flame retardant, 0.3 parts of pigment;

[0038] The preparation steps are as follows:

[0039] (1) Weigh the raw materials by weight and mix them evenly at 65°C;

[0040] (2) Feed the uniformly mixed raw materials into the extruder for foaming, and then extrude through the extrusion die. The temperature of the extruder is controlled to 185°C, and the temperature of the cooling water flowing into the extrusion die is 12 ℃;

[0041] (3) Cool and shape the molten material leaving the extrusion die to obtain the high flame-retardant PVC board.

Embodiment 3

[0043] A high flame retardant PVC board is composed of the following components by weight: 125 parts of PVC waste, 63 parts of calcium powder, 11 parts of stabilizers, 7 parts of tribasic lead sulfate, 4 parts of chlorinated paraffin, foaming 2 parts of white foaming agent, 0.4 parts of white foaming agent, 5 parts of flame retardant, 0.2 parts of pigment;

[0044] The preparation steps are as follows:

[0045] (1) Weigh the raw materials by weight and mix them evenly at 65°C;

[0046] (2) Feed the uniformly mixed raw materials into the extruder for foaming, and then extrude through the extrusion die. The temperature of the extruder is controlled to 185°C, and the temperature of the cooling water flowing into the extrusion die is 12 ℃;

[0047] (3) Cool and shape the molten material leaving the extrusion die to obtain the high flame retardant PVC board.

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PUM

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Abstract

The invention relates to a PVC (polyvinyl chloride) board with high inflaming retardance. After being tested, the PVC board with high inflaming retardance has a shore hardness value greater than 77.1,and is high in hardness; the fireproofing grade meets the requirements of Grade UL94V-0, and the inflaming retarding effect is good; after the PVC board is placed in an environment with the temperature of 90 DEG C and the humidity of 33 percent for 24 hours, an obtained test result is that a sample is free of deformation, normal in color and luster and good in high temperature resistance.

Description

Technical field [0001] The invention relates to the technical field of PVC boards, in particular to a high flame retardant PVC board. Background technique [0002] PVC board is made of PVC as a raw material with a honeycomb mesh structure in section. Also known as decorative film and adhesive film, it is a kind of vacuum blister film, used in the surface packaging of various panels, and used in many industries such as building materials, packaging, and medicine. PVC board accounts for the largest proportion in the building materials industry, at 60%, followed by the packaging industry, and there are several other small-scale applications. According to the degree of softness and hardness, it can be divided into soft PVC and hard PVC. According to the production process, it can be divided into PVC skinned foam board and PVC free foam board. According to transparent and opaque, it can be divided into PVC transparent board and PVC board. [0003] The current PVC board has poor flam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/06C08K3/26C08K3/30C08J9/04
CPCC08J9/04C08J9/0061C08J9/0066C08J2327/06C08J2491/06C08K3/30C08K2003/265
Inventor 徐乐
Owner GUILIN QUANZHOU LIAOYUAN SCI & TECH
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