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Hindered-phenol-quaternary-ammonium-salt-modified-imvite-modified PP-R pipe

A technology of quaternary ammonium salt and hindered phenol, which is applied in the field of materials, can solve the problems of not being able to effectively improve the low-temperature toughness, antibacterial and anti-aging properties of PP-R pipes, reduce the mechanical properties of PP-R pipes, and short action time, etc., to achieve excellent Anti-aging performance, good anti-aging performance, effect of improving compatibility

Inactive Publication Date: 2017-05-24
LIANSU TECH DEV GUIYANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some traditional antioxidants and antibacterial agents have high toxicity due to poor stability; Poor compatibility, the addition of these modifiers will significantly reduce the mechanical properties of PP-R pipes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1 Preparation of Hindered Phenol Quaternary Ammonium Salt Modified Montmorillonite 1

[0034] In N 2 Under protection, add 15 parts of montmorillonite, 60 parts of toluene, 1 part of 2,6-di-tert-butyl-4-methylphenol and 15 parts of hydrochloric acid into a three-necked flask equipped with magnetic stirring, condenser and thermometer. Parts, 15 parts of paraformaldehyde, 1 part of triphenylamine, heated in a water bath at 110°C for 12h, filtered with suction, washed the filter cake with deionized water, washed with 50% ethanol solution to chlorine-free, dried at 100°C, ground 200 mesh Sieve spare.

experiment example 2

[0035] Experimental example 2 Preparation of modified montmorillonite 2 with hindered phenol quaternary ammonium salt

[0036] In N 2 Under protection, add 15 parts of montmorillonite, 60 parts of tetrahydrofuran, 1 part of 2,6-di-tert-butyl-4-methylphenol, and 10 parts of hydrochloric acid into a three-necked flask equipped with magnetic stirring, condenser and thermometer. 10 parts of paraformaldehyde, 1 part of triphenylamine, heated in a water bath at 80°C for 12h, suction filtered, washed the filter cake with deionized water, washed with 50% ethanol solution until no chlorine ions, dried at 100°C, ground 200 mesh Sieve spare.

experiment example 3

[0037] Experimental example 3 Preparation of montmorillonite 3 modified by hindered phenol quaternary ammonium salt

[0038] In N 2 Under protection, add 15 parts of montmorillonite, 60 parts of toluene, 1 part of 2,6-di-tert-butyl-4-methylphenol, and 10 parts of hydrochloric acid into a three-necked flask equipped with magnetic stirring, condenser and thermometer. 10 parts of paraformaldehyde, 1 part of triphenylamine, heated in a 110℃ water bath for 8h, suction filtered, washed the filter cake with deionized water, washed with 50% ethanol solution to no chloride ion, dried at 100℃, ground through a 200 mesh sieve spare.

[0039] Example 1 Hindered phenol quaternary ammonium salt modified montmorillonite modified PPR pipe special material 1

[0040] Mix 100 parts of PP-R, 3 parts of hindered phenol quaternary ammonium salt modified montmorillonite prepared in Experimental Example 1, 6 parts of POE-g-MAH and 3 parts of HDPE-g-MAH, and then add the same direction twin screw The extr...

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PUM

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Abstract

The invention relates to a material special for a hindered-phenol-quaternary-ammonium-salt-modified-imvite-modified PP-R pipe. The material special for the hindered-phenol-quaternary-ammonium-salt-modified-imvite-modified PP-R pipe is prepared from, by mass, 80-120 parts of PPR, 0.5-10 parts of hindered-phenol-quaternary-ammonium-salt-modified imvite and 1-30 parts of a compatilizer, wherein the compatilizer is one or more of maleic anhydride (MAH) grafted by elastomer, HDPE, LDPE and PP or acrylonitrile (SAN) or glycidyl methacrylate (GMA). According to the material, the hindered-phenol-quaternary-ammonium-salt-modified imvite and the compatilizer are compounded, then the mixture and the PPR resin are blended and modified, and the material special for the PPR pipe is prepared; the material special for the PPR pipe has the advantages of being excellent in low-temperature performance, stable in size and good in antibacterial performance and weather resistance.

Description

Technical field [0001] The invention relates to the field of materials, in particular to a hindered phenol quaternary ammonium salt modified montmorillonite modified PP-R pipe. Background technique [0002] Random copolymer polypropylene (PP-R) pipe is the third generation PP (Ⅲ type) pipe product developed after homopolymer PP-H (Ⅰ type) pipe and block copolymer type PP-B (Ⅱ type) pipe. . Because PP-R pipe has good heat resistance, creep resistance and pressure resistance, and low price, it is widely used in cold and hot water supply projects. However, PP-R pipes have low-temperature brittleness, and they usually become brittle at -10°C, which often results in pipe bursts in winter, which is difficult to meet people's requirements for pipe use. In addition, due to the presence of methyl branches in random copolymer polypropylene, it is easily attacked by free radicals. During storage, processing, and use, it is affected by heat, oxygen, light, etc., and methyl branches are eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L51/06C08K9/04C08K3/34
CPCC08L23/14C08K2201/011C08L2203/18C08L2205/02C08L2205/025C08L2205/03C08L51/06C08K9/04C08K3/346
Inventor 刘运锦黄海
Owner LIANSU TECH DEV GUIYANG
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