A kind of method for preparing ppr pipe with aluminum metal effect

Abstract

The invention relates to a method for preparing a PPR (polypropylene) tube with an aluminum metal effect. The method comprises the following specific steps: preparing the following raw materials in parts by weight: 100 parts of PPR, 10-25 parts of aluminum powder, 8-18 parts of a dispersing agent, 3-8 parts of a core-shell copolymer with a soft core and a hard shell, 5-10 parts of styrene-butadiene rubber, 5-10 parts of carbon fiber, 3-8 parts of aciform wollastonite fiber, 1-3 parts of a coupling agent and 1.5-3 parts of an antioxidant; distributing a weakly acidic coupling agent solution onthe surface of the carbon fiber and the surface of the aciform wollastonite fiber; adding the aluminum powder into an alkaline dispersing agent solution; stirring and mixing the PPR, the core-shell copolymer with the soft core and the hard shell, the styrene-butadiene rubber and the antioxidant, and simultaneously, spraying modified aluminum powder mixed liquid to obtain a premixed raw material; and adding the premixed raw material, the modified carbon fiber and the modified aciform wollastonite fiber to an extruding machine to be extruded and granulated to obtain the PPR tube. The PPR tube prepared by the method provided by the invention has the advantages of uniform aluminum metal effect, good low-temperature flexibility and good heat resistance.

Description

technical field

[0001] The invention relates to a method for preparing a PPR pipe with an aluminum 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 construction,...

Examples

Embodiment 1

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

[0038] Prepare the following raw materials in parts by weight: 100 parts of PPR, 15 parts of 400-mesh aluminum powder, 8 parts of dispersant, 3 parts of soft-core hard-shell core-shell copolymer, 10 parts of 100-mesh styrene-butadiene rubber, 5 parts of carbon fiber, needle-shaped silicon 8 parts of limestone fiber, 2 parts of coupling agent, 1.5 parts of antioxidant; the dispersant is dodecanoic acid, and the soft core and hard shell type core-shell copolymer is methyl methacrylate-butyl acrylate core shell copolymer, the carbon fibers are polyacrylonitrile-based carbon fibers, the average aspect ratio of the polyacrylonitrile-based carbon fibers is 100, the average aspect ratio of the acicular wollastonite fibers is 15, and the coupling agent is γ-(2,3-epoxypropoxy)propyltrimethoxysilane, and the antioxidant is β-(3,5-di-tert-butyl-4-hydroxypheny...

Embodiment 2

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

[0047] Prepare the following raw materials in parts by weight: 100 parts of PPR, 10 parts of 800-mesh aluminum powder, 10 parts of dispersant, 5 parts of soft-core hard-shell core-shell copolymer, 5 parts of styrene-butadiene rubber, 8 parts of carbon fiber, acicular wollastonite 3 parts of fiber, 1 part of coupling agent, 2 parts of antioxidant; the dispersant is palmitic acid, and the soft core and hard shell type core-shell copolymer is methyl methacrylate-butadiene-styrene core shell copolymer, the carbon fibers are pitch-based carbon fibers, the average aspect ratio of the pitch-based carbon fibers is 130, the average aspect ratio of the acicular wollastonite fibers is 18, and the coupling agent is γ-mercapto Propyltrimethoxysilane, the antioxidant is tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and pentaer...

Embodiment 3

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

[0056] Prepare the following raw materials in parts by weight: 100 parts of PPR, 20 parts of 500-mesh aluminum powder, 15 parts of dispersant, 8 parts of soft-core and hard-shell type core-shell copolymer, 8 parts of styrene-butadiene rubber, 10 parts of carbon fiber, acicular wollastonite 5 parts of fiber, 1.5 parts of coupling agent, 2 parts of antioxidant; the dispersant is stearic acid, and the soft core and hard shell type core-shell copolymer is methyl methacrylate-butyl acrylate core-shell copolymer , the carbon fiber is a viscose-based carbon fiber, the average aspect ratio of the viscose-based carbon fiber is 150, the average aspect ratio of the acicular wollastonite fiber is 20, and the coupling agent is three (dioctyl Pyrophosphoryloxy) isopropyl titanate, the antioxidant is 4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and sulfur w...

technical field

[0001] The invention relates to a method for preparing a PPR pipe with an aluminum 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 construction,...

Examples

Embodiment 1

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

[0038] Prepare the following raw materials in parts by weight: 100 parts of PPR, 15 parts of 400-mesh aluminum powder, 8 parts of dispersant, 3 parts of soft-core hard-shell core-shell copolymer, 10 parts of 100-mesh styrene-butadiene rubber, 5 parts of carbon fiber, needle-shaped silicon 8 parts of limestone fiber, 2 parts of coupling agent, 1.5 parts of antioxidant; the dispersant is dodecanoic acid, and the soft core and hard shell type core-shell copolymer is methyl methacrylate-butyl acrylate core shell copolymer, the carbon fibers are polyacrylonitrile-based carbon fibers, the average aspect ratio of the polyacrylonitrile-based carbon fibers is 100, the average aspect ratio of the acicular wollastonite fibers is 15, and the coupling agent is γ-(2,3-epoxypropoxy)propyltrimethoxysilane, and the antioxidant is β-(3,5-di-tert-butyl-4-hydroxypheny...

Embodiment 2

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

[0047] Prepare the following raw materials in parts by weight: 100 parts of PPR, 10 parts of 800-mesh aluminum powder, 10 parts of dispersant, 5 parts of soft-core hard-shell core-shell copolymer, 5 parts of styrene-butadiene rubber, 8 parts of carbon fiber, acicular wollastonite 3 parts of fiber, 1 part of coupling agent, 2 parts of antioxidant; the dispersant is palmitic acid, and the soft core and hard shell type core-shell copolymer is methyl methacrylate-butadiene-styrene core shell copolymer, the carbon fibers are pitch-based carbon fibers, the average aspect ratio of the pitch-based carbon fibers is 130, the average aspect ratio of the acicular wollastonite fibers is 18, and the coupling agent is γ-mercapto Propyltrimethoxysilane, the antioxidant is tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and pentaer...

Embodiment 3

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

[0056] Prepare the following raw materials in parts by weight: 100 parts of PPR, 20 parts of 500-mesh aluminum powder, 15 parts of dispersant, 8 parts of soft-core and hard-shell type core-shell copolymer, 8 parts of styrene-butadiene rubber, 10 parts of carbon fiber, acicular wollastonite 5 parts of fiber, 1.5 parts of coupling agent, 2 parts of antioxidant; the dispersant is stearic acid, and the soft core and hard shell type core-shell copolymer is methyl methacrylate-butyl acrylate core-shell copolymer , the carbon fiber is a viscose-based carbon fiber, the average aspect ratio of the viscose-based carbon fiber is 150, the average aspect ratio of the acicular wollastonite fiber is 20, and the coupling agent is three (dioctyl Pyrophosphoryloxy) isopropyl titanate, the antioxidant is 4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and sulfur w...

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