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Preparation method of PPR (polypropylene random copolymer) pipe with copper metal effect

A copper metal and pipe technology, applied in the field of PPR pipe preparation, can solve the problems of poor low-temperature toughness, single visual effect, and poor heat resistance of PPR pipes, so as to improve compatibility, reduce fracture probability, and avoid embrittlement aggravation Effect

Active Publication Date: 2018-04-24
江西陈氏科技集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the technical problems of poor low-temperature toughness, poor heat resistance and single visual effect of the PPR pipe prepared by the existing method, a method for preparing a PPR pipe with copper metal effect is provided

Method used

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  • Preparation method of PPR (polypropylene random copolymer) pipe with copper metal effect
  • Preparation method of PPR (polypropylene random copolymer) pipe with copper metal effect

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Effect test

Embodiment 1

[0037] This embodiment provides a method for preparing a PPR pipe with a copper metal effect, comprising the following steps:

[0038] Prepare the following raw materials by weight: 100 parts of PPR, 15 parts of granular copper powder, 5 parts of scaly copper powder, 12 parts of dispersant, 8 parts of carbon fiber, 1 part of coupling agent, soft-core hard-shell core-shell copolymer 8 parts of toughening agent, 1.5 parts of antioxidant; Described carbon fiber is polyacrylonitrile-based carbon fiber, and described soft-core hard-shell type core-shell copolymer is methyl methacrylate-butyl acrylate core-shell copolymer, and described The dispersant is stearic acid, the coupling agent is γ-(2,3-glycidoxy)propyltrimethoxysilane, and the antioxidant is β-(3, 5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate and three [2,4-di-tert-butylphenyl] phosphite, the granular copper powder is 400 mesh, the The flaky copper powder is 700 mesh;

[0039] Prepare the dispersant solution with ...

Embodiment 2

[0046] This embodiment provides a method for preparing a PPR pipe with a copper metal effect, comprising the following steps:

[0047] Prepare the following raw materials by weight: 100 parts of PPR, 30 parts of granular copper powder, 1 part of scaly copper powder, 15 parts of dispersant, 15 parts of carbon fiber, 2 parts of coupling agent, soft-core hard-shell core-shell copolymer 12 parts of toughening agent, 1.3 parts of antioxidant; The carbon fiber is a pitch-based carbon fiber, and the soft-core hard-shell type core-shell copolymer is methyl methacrylate-butadiene-styrene core-shell copolymer , the dispersant is lauric acid, the coupling agent is γ-mercaptopropyltrimethoxysilane, and the antioxidant is tetrakis[β-(3,5-di-tert-butyl with a mass ratio of 1:1 base-4-hydroxyphenyl)propionic acid]pentaerythritol ester and bis(2,4-di-tert-butylphenol)pentaerythritol diphosphite, the granular copper powder is 500 mesh, and the flaky copper powder is 600 head;

[0048] Prepar...

Embodiment 3

[0055] This embodiment provides a method for preparing a PPR pipe with a copper metal effect, comprising the following steps:

[0056] Prepare the following raw materials by weight: 100 parts of PPR, 20 parts of granular copper powder, 2 parts of scaly copper powder, 10 parts of dispersant, 10 parts of carbon fiber, 1.5 parts of coupling agent, soft core and hard shell core-shell copolymer 5 parts of toughening agent, 2.5 parts of antioxidant; The carbon fiber is viscose-based carbon fiber, the soft-core hard-shell type core-shell copolymer is methyl methacrylate-butyl acrylate core-shell copolymer, and the dispersed The agent is glyceryl tristearate, the coupling agent is isopropyl tris(dioctylpyrophosphoryloxy) titanate, and the antioxidant is 4,6-tris (3,5-di-tert-butyl-4-hydroxybenzyl) benzene and tris[2,4-di-tert-butylphenyl] phosphite, the granular copper powder is 800 mesh, and the flaky copper Powder is 500 mesh;

[0057] Prepare dispersant solution with chloroform; ...

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Abstract

The invention relates to a preparation method of a PPR (polypropylene random copolymer) pipe with a copper metal effect. The method comprises the following steps: raw materials in parts by weight including 100 parts of PPR, 15-30 parts of granular copper powder, 1-5 parts of flaky copper powder, 10-15 parts of a dispersant, 8-18 parts of carbon fibers, 1-3 parts of a coupling agent, 5-15 parts ofa soft-core and hard-shell type copolymer toughening agent and 1.3-3 parts of an antioxidant are prepared; the coupling agent is dispersed to the surfaces of the carbon fibers, and modified carbon fibers are obtained; the granular copper powder and the flaky copper powder are added to a dispersant solution, and a modified copper solution is obtained; PPR, the soft-core and hard-shell type copolymer toughening agent and the antioxidant in the preparation raw materials are mixed and sprayed into the modified copper solution, the solution is dried, and a premixed raw material is obtained; the premixed raw material and the modified carbon fibers are added to an extruder for extrusion and granulation, and the PPR pipe is obtained. The prepared PPR pipe has good copper texture and is good in low-temperature toughness and heat resistance.

Description

technical field [0001] The invention relates to a preparation method of a PPR pipe material with a copper metal effect, and belongs to the technical field of PPR pipe preparation. Background technique [0002] PPR is also called random copolymerized polypropylene, which is extruded into pipes by random copolymerized polypropylene, and the pipes are injection molded into pipe fittings. Compared with traditional cast iron pipes, galvanized steel pipes, cement pipes and other pipes, PPR pipe fittings are energy-saving, material-saving, Environmental protection and non-toxic, heat and pressure resistance, light weight and high strength, corrosion resistance, no scaling, good impact resistance and creep resistance, easy installation, firm connection, long service life, recyclable materials, etc., are widely used in construction Water supply and drainage, city gas, electric power and optical cable sheathing, industrial fluid transportation, agricultural irrigation and other constr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L51/04C08L51/00C08K13/06C08K9/06C08K7/06C08K9/04C08K7/00C08K3/08C08K5/134C08K5/13C08K5/526B29B9/06
CPCB29B9/06C08K2003/085C08L23/14C08L2201/08C08L2203/18C08L2207/14C08L2207/53C08L51/04C08L51/003C08K13/06C08K9/06C08K7/06C08K9/04C08K7/00C08K3/08C08K5/1345C08K5/13C08K5/526
Inventor 程东红陈文其
Owner 江西陈氏科技集团股份有限公司
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