Weather-proof hydrophobic coating for plastic pipe surface

A technology for hydrophobic coatings and plastic pipes, applied in wax coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve the problems of poor surface smoothness, weather resistance, hydrophobicity and thermal stability that cannot meet the requirements, and achieve smooth coating, Enhanced weather resistance and hydrophobic performance, good weather resistance

Inactive Publication Date: 2016-10-12
ANHUI ZHENGSHI NEW BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ordinary coatings have good adhesion to plastic pipes, high hardness of the paint film, and good scratch resistance, so they are widely used in pl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A weather-resistant hydrophobic coating for the surface of plastic pipes, its raw materials include by weight: 15 parts of novolac epoxy resin, 15 parts of alkyd resin, 2 parts of modified urea, 1.5 parts of caprolactam-blocked IPDI, 1,3-diamino 0.5 parts of hexylamine, 4 parts of nano-titanium dioxide, 2 parts of polyacrylate-2-ethylhexyl ester, 15 parts of spherical silica powder, 2 parts of calcined clay, 8 parts of nano-bentonite, 1 part of ammonium dihydrogen phosphate, titanate coupling 2 parts of agent, 1 part of methacryloxypropyl trimethoxysilane, 1.5 parts of stearic acid, 0.5 parts of palm wax, 2 parts of 2-phenylimidazoline, and 1 part of acrylate.

Embodiment 2

[0017] A weather-resistant hydrophobic coating for the surface of plastic pipes, its raw materials include by weight: 30 parts of novolak epoxy resin, 5 parts of alkyd resin, 10 parts of modified urea, 0.5 parts of caprolactam-blocked IPDI, 1,3-diamino 1.5 parts of hexylamine, 1 part of nano-titanium dioxide, 4 parts of polyacrylate-2-ethylhexyl ester, 5 parts of spherical silica powder, 10 parts of calcined clay, 4 parts of nano-bentonite, 3 parts of ammonium dihydrogen phosphate, titanate coupling 1 part of agent, 2 parts of methacryloxypropyltrimethoxysilane, 0.5 part of stearic acid, 1.5 parts of palm wax, 1 part of 2-phenylimidazoline, and 2 parts of acrylate.

[0018] The modified urea is prepared by the following process: mix urea, soybean protein concentrate, neutral protease, and water evenly, add sodium hydroxide to adjust the pH value of the system to be neutral, stir, inactivate at high temperature, and send the solid into an ultrasonic oscillator Ultrasound, add b...

Embodiment 3

[0020] A weather-resistant hydrophobic coating for the surface of plastic pipes, its raw materials include by weight: 15 parts of novolac epoxy resin, 15 parts of alkyd resin, 2 parts of modified urea, 1.5 parts of caprolactam-blocked IPDI, 1,3-diamino 0.5 parts of hexylamine, 4 parts of nano-titanium dioxide, 2 parts of polyacrylate-2-ethylhexyl ester, 15 parts of spherical silica powder, 2 parts of calcined clay, 8 parts of nano-bentonite, 1 part of ammonium dihydrogen phosphate, titanate coupling 2 parts of agent, 1 part of methacryloxypropyl trimethoxysilane, 1.5 parts of stearic acid, 0.5 parts of palm wax, 2 parts of 2-phenylimidazoline, and 1 part of acrylate.

[0021] The modified urea is prepared by the following process: mix 10 parts of urea, 5 parts of soybean protein concentrate, 0.007 parts of neutral protease, and 50 parts of water in parts by weight, add sodium hydroxide to adjust the pH of the system to be neutral, stir, and stir the temperature The temperature...

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PUM

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Abstract

The invention discloses a weather-proof hydrophobic coating for a plastic pipe surface. The weather-proof hydrophobic coating comprises the following raw materials in parts by weight: 15-30 parts of novolac epoxy, 5-15 parts of alkyd resin, 2-10 parts of modified urea, 0.5-1.5 parts of caprolactam closed IPDI, 0.5-1.5 parts of 1,3-deamino hexylamine, 1-4 parts of nano titanium dioxide, 2-4 parts of polyacrylic acid-2-ethylhexyl ester, 5-15 parts of spherical silica powder, 2-10 parts of calcined argil, 4-8 parts of nano bentonite, 1-3 parts of ammonium dihydrogen phosphate, 1-2 parts of titanate coupling agent, 1-2 parts of methylacryloyloxy propyl trimethoxy silane, 0.5-1.5 parts of stearic acid, 0.5-1.5 parts of palm wax, 1-2 parts of 2-phenyl imidazoline and 1-2 parts of acrylic ester. The weather-proof hydrophobic coating disclosed by the invention has the advantages of smooth smearing surface, good weather resistance and thermal stability and excellent hydrophobic property.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a weather-resistant hydrophobic coating for the surface of plastic pipes. Background technique [0002] The surface of plastic pipes is easily damaged by the influence of environmental media. At present, the most effective way to protect plastic pipes is to coat the surface of plastic pipes to isolate them from environmental media. At present, ordinary coatings have good adhesion to plastic pipes, high hardness of the paint film, and good scratch resistance, so they are widely used in plastic pipe protection, but the surface smoothness is poor, and the weather resistance, hydrophobicity and thermal stability cannot meet the requirements. need. Contents of the invention [0003] The invention provides a weather-resistant hydrophobic coating for the surface of plastic pipes. The painted surface of the product is smooth, weather-resistant, good in thermal stability and excellent...

Claims

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Application Information

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IPC IPC(8): C09D163/04C09D167/08C09D175/06C09D175/14C09D175/12C09D133/08C09D191/06C09D5/08C09D7/12
CPCC09D163/04C08K2201/011C08K2201/014C08L2201/08C08L2203/18C08L2205/035C09D5/08C09D5/18C09D7/61C09D7/63C09D167/08C09D175/06C09D175/12C09D175/14C08L67/08C08L33/08C08L91/06C08K13/06C08K5/21C08K2003/2241C08K3/36C08K3/346C08L63/04
Inventor 徐先锋胡正才
Owner ANHUI ZHENGSHI NEW BUILDING MATERIAL
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