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Polyvinyl chloride (PVC) hard modified plastic

A polyvinyl chloride, hard technology, applied in the field of polyvinyl chloride hard modified plastics, can solve the problems of poor light and heat stability, discoloration, physical and mechanical performance decline, etc., and achieve good mechanical properties and good heat resistance Effect

Inactive Publication Date: 2013-08-28
SUZHOU NEW DISTRICT HUASHIDA ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyvinyl chloride has good mechanical properties, the tensile strength is about 60MPa, and the impact strength is 5-10kJ / m2, but it has poor stability to light and heat. It will decompose and produce hydrogen chloride when it is above 100°C or exposed to sunlight for a long time , and further autocatalytic decomposition, causing discoloration, and rapid decline in physical and mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of polyvinyl chloride rigid modified plastic provided by the present invention, the percentage by weight of various components in described polyvinyl chloride rigid modified plastic is: general-purpose PVC plastic raw material 78%, dibasic lead phosphite 5% %, 1% paraffin, 1.5% rutile titanium dioxide, 14.5% glass fiber.

Embodiment 2

[0020] A kind of polyvinyl chloride rigid modified plastic provided by the present invention, the percentage by weight of various components in described polyvinyl chloride rigid modified plastic is: general-purpose PVC plastic raw material 78%, dibasic lead phosphite 4.5% %, 1% paraffin, 1.5% rutile titanium dioxide, 15% glass fiber.

[0021] A polyvinyl chloride rigid modified plastic provided by the present invention changes the common polyvinyl chloride, which starts to soften at 80-85°C, decomposes, catalyzes, changes color, and declines in physical and mechanical properties when it is above 100°C or exposed to sunlight for a long time. The disadvantage is that the heat resistance is increased by 30-50 °C, the hardness and impact resistance are significantly improved, and the scope of application of the product is further expanded.

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PUM

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Abstract

The invention discloses a polyvinyl chloride (PVC) hard modified plastic which is characterized in that a general PVC plastic raw material, a stabilizer, a lubricant, a coloring agent and a filler are mixed and granulated, wherein the stabilizer is tribasic lead sulfate, dibasic lead phosphite, barium stearate or cadmium stearate; the lubricant is stearic acid, paraffin or mineral oil; the coloring agent includes rutile type titanium dioxide, chrome yellow and channel black; and the filler includes calcium carbonate, argil and glass fiber. Through the way, the PVC hard modified plastic disclosed by the invention has better mechanical properties and good heat resistance, resists impact and aging, and is particularly suitable for the buildings such as doors / windows, pipelines, plates and the like and the related industries.

Description

technical field [0001] The invention relates to a plastic formula, in particular to a polyvinyl chloride rigid modified plastic. Background technique [0002] Polyvinyl chloride is one of the plastic products with the largest output in the world. It is cheap and widely used. Because of its low cost and self-flammability, it is widely used in the construction field, especially for sewer pipes, plastic steel doors and windows, and panels. most widely used. Polyvinyl chloride has good mechanical properties, the tensile strength is about 60MPa, and the impact strength is 5-10kJ / m2, but it has poor stability to light and heat. It will decompose and produce hydrogen chloride when it is above 100°C or exposed to sunlight for a long time , and further autocatalytic decomposition, causing discoloration, and rapid decline in physical and mechanical properties. Contents of the invention [0003] The technical problem mainly solved by the invention is to provide a polyvinyl chloride...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/04C08K7/14C08K3/32C08K3/22C08K5/01
Inventor 徐春华
Owner SUZHOU NEW DISTRICT HUASHIDA ENG PLASTICS
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