Modified polypropylene composite material for pipeline, and preparation method and application of modified polypropylene composite material

A composite material and polypropylene technology, which is applied in the field of modified polypropylene composite materials for pipelines and their preparation, can solve the problems of not being able to have flame retardancy, antistatic and mechanical properties at the same time, and achieve improved toughness, low processing energy consumption, good flame retardant effect

Pending Publication Date: 2020-02-04
GUIZHOU MATERIAL IND TECH INSTITUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to provide a modified polypropylene composite material for pipelines and its preparation method and application. This material solves the problem that t

Method used

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  • Modified polypropylene composite material for pipeline, and preparation method and application of modified polypropylene composite material
  • Modified polypropylene composite material for pipeline, and preparation method and application of modified polypropylene composite material
  • Modified polypropylene composite material for pipeline, and preparation method and application of modified polypropylene composite material

Examples

Experimental program
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Example Embodiment

[0050] A method for preparing a modified polypropylene composite material for pipelines, the method comprising:

[0051] Unsaturated carboxylic acid graft copolymer of polypropylene, ethylene-vinyl acetate copolymer, EPDM rubber, polyolefin elastomer, phosphogypsum whisker, supercritical carbon dioxide treated decabromodiphenylethane, supercritical carbon dioxide Critical carbon dioxide treated nano antimony trioxide, silane coupling agent, dicumyl peroxide, supercritical carbon dioxide treated micro-nano organically modified montmorillonite, supercritical carbon dioxide treated micro-nano flake graphite, 1,1 , 3-Tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 2-mercaptobenzimidazole, light stabilizer GW-944 and calcium stearate are mixed uniformly by weight, and The uniformly mixed materials are extruded and pelletized by a twin-screw extruder equipped with a micro-nano laminate stretching device, and then cooled, pelletized, dried, and packaged to obtain the product.

[0052]...

Example Embodiment

[0059] Example 1

[0060] A preparation method of modified polypropylene composite material for pipelines, including:

[0061] 100Kg polypropylene, 1Kg ethylene-vinyl acetate copolymer, 1Kg EPDM rubber, 10Kg polyolefin elastomer unsaturated carboxylic acid graft copolymer, 10Kg supercritical carbon dioxide treated phosphogypsum whisker, 8Kg supercritical Carbon dioxide treated decabromodiphenylethane, 2Kg supercritical carbon dioxide treated nano antimony trioxide, 0.5Kg silane coupling agent, 2Kg dicumyl peroxide, 3Kg supercritical carbon dioxide treated micro-nano organic modified montmorillonite Soil, 6Kg supercritical carbon dioxide treated micro-nano flake graphite, 0.5Kg 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 0.5Kg 2-mercaptobenzo Imidazole, 0.5Kg light stabilizer GW-944, 0.5Kg calcium stearate are mixed uniformly in the mixer.

[0062] Then, see figure 1 , The uniformly mixed materials are extruded and pelletized by a twin-screw extruder equipped with a mic...

Example Embodiment

[0074] Example 2

[0075] A preparation method of modified polypropylene composite material for pipelines is basically the same as the preparation method of Example 1, except that the content of each component is 100Kg polypropylene, 6Kg ethylene-vinyl acetate copolymer, 6Kg EPDM Rubber, 20Kg polyolefin elastomer unsaturated carboxylic acid graft copolymer, 10Kg supercritical carbon dioxide treated phosphogypsum whisker, 9Kg supercritical carbon dioxide treated decabromodiphenylethane, 3Kg supercritical carbon dioxide treated nano trioxide Antimony, 1Kg silane coupling agent, 6Kg dicumyl peroxide, 5Kg supercritical carbon dioxide treated micro-nano organically modified montmorillonite, 6Kg supercritical carbon dioxide treated micro-nano flake graphite, 0.6Kg 1,1, 3-Tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 0.6Kg 2-mercaptobenzimidazole, 0.6Kg light stabilizer GW-944, 0.5Kg calcium stearate.

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Abstract

The invention discloses a modified polypropylene composite material for a pipeline, and a preparation method and application of the modified polypropylene composite material. The composite material isobtained by extruding and granulating of the following components in parts by weight: polypropylene, an ethylene-vinyl acetate copolymer, ethylene-propylene-diene monomer, an unsaturated carboxylic acid graft copolymer of a polyolefin elastomer, phosphogypsum whiskers treated by supercritical carbon dioxide, decabromodiphenylethane treated by supercritical carbon dioxide, nano antimony trioxide treated by supercritical carbon dioxide, a silane coupling agent, diisopropylbenzene peroxide, micro-nano organic modified montmorillonite treated by supercritical carbon dioxide, micro-nano flake graphite treated by supercritical carbon dioxide, 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 2-mercaptobenzimidazole, a light stabilizer GW-944 and calcium stearate through a twin-screw extruder additionally provided with a micro-nano laminated stretching device. The modified polypropylene composite material has the advantages of good antistatic performance, excellent flame-retardant performance and high notch impact strength.

Description

technical field [0001] The invention relates to a modified polypropylene composite material, in particular to a modified polypropylene composite material for pipelines, a preparation method and application thereof. Background technique [0002] Power pipes are commonly used in infrastructure construction. They are usually made of modified polyethylene (PE), epoxy resin (EP) or chlorinated polyvinyl chloride (CPVC) resins. However, PE pipes have the disadvantage of low mechanical strength. EP has Poor weather resistance and brittleness, CPVC also has disadvantages such as high price and difficult processing. However, the power pipeline needs to be used in trenchless construction. When it encounters hard and sharp obstacles, it can protect the pipeline from being scratched and cracked, and at the same time ensure the characteristics of antistatic, flame retardant and wear resistance . [0003] Ordinary PP pipes generally lack the effects of flame retardancy and antistatic, a...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L23/16C08L51/06C08K13/06C08K9/02C08K7/08C08K5/03C08K3/22C08K5/14C08K3/34C08K7/00C08K3/04B29B9/06
CPCB29B9/06C08K2201/011C08L23/12C08L2201/02C08L2201/04C08L2201/08C08L2203/18C08L2205/035C08L23/0853C08L23/16C08L51/06C08K13/06C08K9/02C08K7/08C08K5/03C08K3/2279C08K5/14C08K3/346C08K7/00C08K3/04Y02P20/54
Inventor 徐定红郭建兵秦舒浩周颖何玮頔伍宏明高成涛
Owner GUIZHOU MATERIAL IND TECH INSTITUE
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