Low-density PVC pipe added with polyurethane and preparation method of PVC pipe

A PVC pipe and low-density technology, applied in the field of low-density PVC pipe and its preparation technology, can solve the problems of cracking of the pipe and easy mold, and achieve the effects of low bending strength, less brittleness, and improved antibacterial performance.

Inactive Publication Date: 2017-12-12
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 often prone to mold when they are used for water delivery or in humid environments. Long-term erosion by mold may easily cause pipes to crack

Method used

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  • Low-density PVC pipe added with polyurethane and preparation method of PVC pipe
  • Low-density PVC pipe added with polyurethane and preparation method of PVC pipe
  • Low-density PVC pipe added with polyurethane and preparation method of PVC pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A low-density PVC pipe added with polyurethane, comprising: 150 parts by weight of PVC, 40 parts of low-density polyethylene, 8 parts of bentonite, 3.2 parts of defoamer, 6 parts of phenolic propane epoxy resin, 2.5 parts of stearic acid 1.5 parts of pearl micropowder, 0.8 parts of chitosan, 0.15 parts of paraffin, 1.4 parts of tributyl phosphate, 0.8 parts of chromium trioxide, 4 parts of calcium carbonate, 5 parts of ammonium polyphosphate, and 5 parts of polyurethane.

[0020] The PVC pipe also includes: 0.4 parts of cellulose ether, 0.4 parts of nano-zinc oxide, 0.4 parts of resveratrol, and 0.8 parts of tetrabutylphosphine chloride in terms of components by weight.

[0021] A kind of technology that prepares the low-density PVC pipe that adds polyurethane, comprises the following steps:

[0022] (1) take each component according to parts by weight;

[0023] (2) Mix each component in a mixing mixer, the mixing speed is 80-100 rpm, and the mixing time is 30-60 minut...

Embodiment 2

[0029] A low-density PVC pipe added with polyurethane, comprising: 140 parts by weight of PVC, 30 parts of low-density polyethylene, 5 parts of bentonite, 3 parts of defoamer, 5 parts of phenolic propane epoxy resin, 2 parts of stearic acid 1 part of pearl micropowder, 0.5 part of chitosan, 0.1 part of paraffin, 1.2 parts of tributyl phosphate, 0.5 part of chromium trioxide, 2 parts of calcium carbonate, 2 parts of ammonium polyphosphate, and 2 parts of polyurethane.

[0030] The PVC pipe also includes: 0.3 parts of cellulose ether, 0.3 parts of nano-zinc oxide, 0.3 parts of resveratrol, and 0.5 parts of sodium dibutylsuccinate sulfonate in terms of components by weight.

[0031] A kind of technology that prepares the low-density PVC pipe that adds polyurethane, comprises the following steps:

[0032] (1) take each component according to parts by weight;

[0033] (2) Mix each component in a mixing mixer, the mixing speed is 80-100 rpm, and the mixing time is 30-60 minutes;

...

Embodiment 3

[0040] A low-density PVC pipe added with polyurethane, comprising: 160 parts by weight of PVC, 50 parts of low-density polyethylene, 10 parts of bentonite, 3.5 parts of defoamer, 8 parts of phenolic propane epoxy resin, 3 parts of stearic acid 2 parts of pearl micropowder, 1 part of chitosan, 0.2 part of paraffin, 1.6 parts of tributyl phosphate, 1 part of chromium trioxide, 6 parts of calcium carbonate, 8 parts of ammonium polyphosphate, and 8 parts of polyurethane.

[0041] The PVC pipe further includes: 0.5 part of cellulose ether, 0.5 part of nano-zinc oxide, 0.5 part of resveratrol, and 1 part of tetrabutylphosphine chloride in terms of components by weight.

[0042] A kind of technology that prepares the low-density PVC pipe that adds polyurethane, comprises the following steps:

[0043] (1) take each component according to parts by weight;

[0044] (2) Mix each component in a mixing mixer, the mixing speed is 80-100 rpm, and the mixing time is 30-60 minutes;

[0045] ...

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Abstract

The invention provides a low-density PVC pipe added with polyurethane and a preparation method of the PVC pipe. The PVC pipe comprises the following components in parts by weight: 140-160 parts of PVC, 30-50 parts of low density polyethylene, 5-10 parts of bentonite, 3-3.5 parts of an antifoaming agent, 5-8 parts of phenol propane epoxy resin, 2-3 parts of stearic acid, 1-2 parts of pearl micro powder, 0.5-1 part of chitosan, 0.1-0.2 part of paraffin, 1.2-1.6 parts of tributyl phosphate, 0.5-1 part of chromium trioxide, 2-6 parts of calcium carbonate, 2-8 parts of ammonium polyphosphate and 2-8 parts of polyurethane. Because the PVC pipe disclosed by the invention is added with the polyurethane, the adhesive force on the pipe surface is greatly reduced, so that moulds hardly grow. Moreover, because the PVC pipe contains nano-zinc oxide, the antibacterial property of the pipe is obviously improved, the pipe hardly turns brittle, and the influence of bending strength by a temperature change is very small.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a polyurethane-added low-density 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 often prone to mol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08L63/00C08L5/08C08L91/06C08L75/04C08L1/26C08K13/02C08K5/521C08K3/26C08K3/32C08K3/34C08J3/00
CPCC08L27/06C08J3/00C08J2327/06C08J2423/06C08K2003/2296C08K2003/265C08K2003/323C08K2201/011C08L2203/18C08L2205/035C08L2207/066C08L23/06C08L63/00C08L5/08C08L91/06C08L75/04C08L1/26C08K13/02C08K5/521C08K3/26C08K3/32C08K3/346
Inventor 叶芝南崔亮郭兵张友亮张跃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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