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PVC (Polyvinyl Chloride) pipe and preparation technology thereof

A PVC pipe and process technology, applied in the field of PVC pipe and its preparation process, can solve problems such as bursting, and achieve the effects of reducing thermal stress, improving rigidity and cutting performance, and good antibacterial performance

Inactive Publication Date: 2017-11-24
安徽博泰塑业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, PVC plastic pipes are used in traditional materials, so the pipes made of them will burst after being used for a long time due to internal thermal stress.

Method used

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  • PVC (Polyvinyl Chloride) pipe and preparation technology thereof
  • PVC (Polyvinyl Chloride) pipe and preparation technology thereof
  • PVC (Polyvinyl Chloride) pipe and preparation technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A PVC pipe, comprising: 150 parts of PVC, 8 parts of DBP, 8 parts of ethyl cellulose, 3.2 parts of tribasic sodium phosphite, 1 part of isooctyl dimethyl tin dithioacetate, hard 0.12 parts of fatty acid, 0.8 parts of pearl powder, 0.8 parts of chitosan, 0.15 parts of paraffin, 1.4 parts of talcum powder, 0.8 parts of polyethylene polyamine, 4 parts of calcium carbonate, 5 parts of triethanolamine, and 5 parts of phosphorothioate.

[0019] The PVC pipe also includes: 0.4 parts of zirconium silicate, 0.4 parts of nano-zinc oxide, 0.4 parts of carrageenan, and 0.6 parts of Lewis base in terms of components by weight.

[0020] A process for preparing PVC pipes, comprising the steps of:

[0021] (1) take each component according to parts by weight;

[0022] (2) Mix each component in a mixing mixer, the mixing speed is 80-100 rpm, and the mixing time is 30-60 minutes;

[0023] (3) Extrude the mixed material in a twin-screw extruder, wherein the temperature control parameter...

Embodiment 2

[0028] A PVC pipe comprising: 140 parts by weight of PVC, 5 parts of DBP, 5 parts of ethyl cellulose, 3 parts of tribasic sodium phosphite, 0.5 part of isooctyl dimethyl tin dithioacetate, hard 0.1 part of fatty acid, 0.5 part of pearl powder, 0.5 part of chitosan, 0.1 part of paraffin, 1.2 part of talcum powder, 0.5 part of polyethylene polyamine, 2 parts of calcium carbonate, 2 parts of triethanolamine, and 2 parts of phosphorothioate.

[0029] The PVC pipe also includes, by weight components: 0.3 parts of zirconium silicate, 0.3 parts of nano-zinc oxide, 0.3 parts of carrageenan, and 0.5 parts of Lewis base.

[0030] A process for preparing PVC pipes, comprising the steps of:

[0031] (1) take each component according to parts by weight;

[0032] (2) Mix each component in a mixing mixer, the mixing speed is 80-100 rpm, and the mixing time is 30-60 minutes;

[0033] (3) Extrude the mixed material in a twin-screw extruder, wherein the temperature control parameters are: hea...

Embodiment 3

[0038] A PVC pipe, comprising by weight components: 160 parts of PVC, 10 parts of DBP, 10 parts of ethyl cellulose, 3.5 parts of tribasic sodium phosphite, 2 parts of isooctyl dimethyl tin dithioacetate, hard 0.15 parts of fatty acid, 1 part of pearl powder, 1 part of chitosan, 0.2 parts of paraffin, 1.6 parts of talcum powder, 1 part of polyethylene polyamine, 6 parts of calcium carbonate, 8 parts of triethanolamine, and 8 parts of phosphorothioate.

[0039] The PVC pipe also includes: 0.5 parts of zirconium silicate, 0.5 parts of nano-zinc oxide, 0.5 parts of carrageenan, and 0.8 parts of Lewis base in terms of components by weight.

[0040] A process for preparing PVC pipes, comprising the steps of:

[0041] (1) take each component according to parts by weight;

[0042] (2) Mix each component in a mixing mixer, the mixing speed is 80-100 rpm, and the mixing time is 30-60 minutes;

[0043] (3) Extrude the mixed material in a twin-screw extruder, wherein the temperature con...

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Abstract

The invention provides a PVC (Polyvinyl Chloride) pipe and a preparation technology thereof. The PVC pipe is prepared from the following components in parts by weight: 140 to 160 parts of PVC, 5 to 10 parts of DBP (Dibutyl Phthalate), 5 to 10 parts of ethyl cellulose, 3 to 3.5 parts of tribasic sodium phosphite, 0.5 to 2 parts of methyltin mercaptide, 0.1 to 0.15 part of stearic acid, 0.5 to 1 part of pearl micro-powder, 0.5 to 1 part of chitosan, 0.1 to 0.2 part of paraffin wax, 1.2 to 1.6 parts of talcum powder, 0.5 to 1 part of polyethylene polyamine, 2 to 6 parts of calcium carbonate, 2 to 8 parts of triethanolamine and 2 to 8 parts of thiophosphate. The PVC pipe provided by the invention has excellent tensile strength; the pearl micro-powder is added into materials and the content of micro-crystals in a molding process of the PVC pipe reaches 11 percent, so that the thermal stress of the pipe is greatly reduced; the pipe does not have a cracking phenomenon even being used for 10 years; the PVC pipe has very good antibacterial performance.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a PVC pipe and a preparation process thereof. Background technique [0002] PVC (full name Polyvinylchlorid), the main ingredient is polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness, ductility, etc. It is a well-loved, popular and widely used synthetic material in the world today. It is the second most used synthetic material worldwide. According to statistics, in 1995 alone, the production of PVC in Europe was about 5 million tons, while its consumption was 5.3 million tons. In Germany, PVC production and consumption average 1.4 million tons. PVC pipe Rigid polyvinyl chloride pipe is made of polyvinyl chloride resin, stabilizer, lubricant, etc., and then extruded by hot pressing. It is the earliest plastic pipe that has been developed and applied. At present, PVC plastic pipes are traditionally used in material composition, so th...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L1/28C08K13/02C08K3/26C08K3/34C08K3/22
CPCC08L27/06C08K2003/2296C08K2003/265C08K2201/011C08K2201/014C08L2203/18C08L2205/02C08L2205/035C08L1/28C08K13/02C08K3/26C08K3/34C08K3/22
Inventor 张跃张友亮郭兵崔亮叶芝南张燕李明许光辉朱学超柏成锐
Owner 安徽博泰塑业科技有限公司
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