High-strength and high-toughness polypropylene composite and preparation method thereof

A composite material and polypropylene technology, which is applied in the field of high-strength and high-toughness polypropylene composite materials and their preparation, can solve problems such as poor toughness and low strength, and achieve the effects of simple preparation process, easy availability of raw materials and equipment

Inactive Publication Date: 2019-04-16
SHANGHAI BANZAN MACROMOLECULE MATERIAL
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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 to provide a high-strength and high-toughness polypropylene composite material and its preparation method, which solves the technical problems of low strength and poor toughness of polypropylene materials in the prior art

Method used

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  • High-strength and high-toughness polypropylene composite and preparation method thereof
  • High-strength and high-toughness polypropylene composite and preparation method thereof
  • High-strength and high-toughness polypropylene composite and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A high-strength and high-toughness polypropylene composite material, comprising the following raw material components and parts by weight:

[0025]

[0026]

[0027] Among them, the monofilament diameter of the quartz fiber is 9 μm, the length is 3 mm, the softening point is 600 ° C, and the density is 2.52 g / cm 3 .

[0028] The toughening agent is an ethylene octene block copolymer, the molecular weight of the ethylene octene block copolymer is 70000, and the melt index is 2.0 g / min.

[0029] The compatibilizer is maleic anhydride grafted polypropylene, and the density of maleic anhydride grafted polypropylene is 0.87g / cm 3 , the grafting rate is 1.1%, the melt index is 48g / 10min (190°C, 2.16kg), the tensile strength is 26MPa, and the melting point is 138°C.

[0030] A method for preparing a high-strength and high-toughness polypropylene composite material, comprising the following steps:

[0031] (1) Weighing polypropylene, short glass fiber, toughening agent...

Embodiment 2

[0071] A high-strength and high-toughness polypropylene composite material, comprising the following raw material components and parts by weight:

[0072]

[0073] Among them, the monofilament diameter of the quartz fiber is 9 μm, the length is 3 mm, the softening point is 600 ° C, and the density is 2.52 g / cm 3 .

[0074] The toughening agent is an ethylene octene block copolymer, the molecular weight of the ethylene octene block copolymer is 70000, and the melt index is 2.0 g / min.

[0075] The compatibilizer is maleic anhydride grafted polypropylene, and the density of maleic anhydride grafted polypropylene is 0.87g / cm 3 , the grafting rate is 1.1%, the melt index is 48g / 10min (190°C, 2.16kg), the tensile strength is 26MPa, and the melting point is 138°C.

[0076] A method for preparing a high-strength and high-toughness polypropylene composite material, comprising the following steps:

[0077] (1) Weighing polypropylene, short glass fiber, toughening agent, compatibil...

Embodiment 3

[0116] A high-strength and high-toughness polypropylene composite material, comprising the following raw material components and parts by weight:

[0117]

[0118] Among them, the monofilament diameter of the quartz fiber is 9 μm, the length is 3 mm, the softening point is 600 ° C, and the density is 2.52 g / cm 3 .

[0119] The toughening agent is an ethylene octene block copolymer, the molecular weight of the ethylene octene block copolymer is 70000, and the melt index is 2.0 g / min.

[0120] The compatibilizer is maleic anhydride grafted polypropylene, and the density of maleic anhydride grafted polypropylene is 0.87g / cm 3 , the grafting rate is 1.1%, the melt index is 48g / 10min (190°C, 2.16kg), the tensile strength is 26MPa, and the melting point is 138°C.

[0121] A method for preparing a high-strength and high-toughness polypropylene composite material, comprising the following steps:

[0122] (1) Weighing polypropylene, short glass fiber, toughening agent, compatibil...

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Abstract

The invention discloses a high-strength and high-toughness polypropylene composite. The composite includes, by weight, 71-93 parts of polypropylene, 11-20 parts of quartz fiber, 6-10 parts of a toughening agent, 2-10 parts of a compatibilizer, and 1-10 parts of tetra[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol. The monofilament diameter of the quartz fiber is 6-12 micrometers, the softening point is 550-630 DEG C, and the density is 2.35-2.72 g/cm<3>. According to the high-strength and high-toughness polypropylene composite, under the combined action of the quartz fiber, the compatibilizer and the toughening agent, the composite has high strength and high toughness. Moreover, the invention further discloses a preparation method of the high-strength and high-toughness polypropylene composite, the preparation process is simple, raw materials and the equipment are easy to obtain, and scale production can be achieved.

Description

technical field [0001] The invention belongs to the technical field of polypropylene composite material manufacture, and in particular relates to a high-strength and high-toughness polypropylene composite material and a preparation method thereof. Background technique [0002] Polymer-type polypropylene materials have a lower heat distortion temperature (100°C), low transparency, low gloss, and low rigidity. The impact strength of polymer-type polypropylene materials increases with the increase of ethylene content, while Strength decreases with increasing ethylene content. The Vicat softening temperature of the polymer-type polypropylene material is 150°C, and its Vicat softening temperature is relatively high, so the material has better dimensional stability when heated, the smaller the thermal deformation, the better the thermal deformation resistance. In addition, due to the high crystallinity of the polymer-type polypropylene material, this material has strong surface s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L53/00C08L51/06C08K7/10C08K5/134
CPCC08L23/12C08L2205/03C08L53/00C08L51/06C08K7/10C08K5/1345
Inventor 李楠汪丽程泰山黄健
Owner SHANGHAI BANZAN MACROMOLECULE MATERIAL
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