Polypropylene composite material with higher toughness at low temperature and preparation method of composite material

A composite material and polypropylene technology, applied in the field of polypropylene composite materials and its preparation, can solve the problems of poor low-temperature toughness, etc., and achieve the effects of good thermal stability, high tensile capacity, and good low-temperature toughness

Inactive Publication Date: 2019-05-07
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 polypropylene composite material with high toughness at low temperature and its preparation method, which solves the technical problem of poor low temperature toughness of the polypropylene composite material in the prior art

Method used

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  • Polypropylene composite material with higher toughness at low temperature and preparation method of composite material
  • Polypropylene composite material with higher toughness at low temperature and preparation method of composite material
  • Polypropylene composite material with higher toughness at low temperature and preparation method of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A polypropylene composite material with high toughness at low temperature, comprising the following raw material components and parts by weight:

[0023]

[0024]

[0025] Among them, the length of the quartz fiber is 18mm, the diameter of the single filament is 10μm, and the density is 2.58g / cm 3 , The softening point is 620°C.

[0026] The density of maleic anhydride grafted polypropylene is 0.81g / cm 3 , the grafting rate is 1.9%, the melt index is 52g / 10min (190°C, 2.16kg), the tensile strength is 28MPa, and the melting point is 148°C.

[0027] A method for preparing a polypropylene composite material with high toughness at low temperature, comprising the following steps:

[0028] (1) Polypropylene, quartz fiber, maleic anhydride grafted polypropylene, and tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester are added according to the ratio of raw materials Mix evenly in a high-speed mixer, where the mixing temperature is 80-100°C...

Embodiment 2

[0063] A polypropylene composite material with high toughness at low temperature, comprising the following raw material components and parts by weight:

[0064]

[0065] Among them, the length of the quartz fiber is 18mm, the diameter of the single filament is 10μm, and the density is 2.58g / cm 3 , The softening point is 620°C.

[0066] The density of maleic anhydride grafted polypropylene is 0.81g / cm 3 , the grafting rate is 1.9%, the melt index is 52g / 10min (190°C, 2.16kg), the tensile strength is 28MPa, and the melting point is 148°C.

[0067] A method for preparing a polypropylene composite material with high toughness at low temperature, comprising the following steps:

[0068] (1) Polypropylene, quartz fiber, maleic anhydride grafted polypropylene, and tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester are added according to the ratio of raw materials Mix evenly in a high-speed mixer, where the mixing temperature is 80-100°C;

[0069] ...

Embodiment 3

[0103] A polypropylene composite material with high toughness at low temperature, comprising the following raw material components and parts by weight:

[0104]

[0105] Among them, the length of the quartz fiber is 18mm, the diameter of the single filament is 10μm, and the density is 2.58g / cm 3 , The softening point is 620°C.

[0106] The density of maleic anhydride grafted polypropylene is 0.81g / cm 3 , the grafting rate is 1.9%, the melt index is 52g / 10min (190°C, 2.16kg), the tensile strength is 28MPa, and the melting point is 148°C.

[0107] A method for preparing a polypropylene composite material with high toughness at low temperature, comprising the following steps:

[0108] (1) Polypropylene, quartz fiber, maleic anhydride grafted polypropylene, and tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester are added according to the ratio of raw materials Mix evenly in a high-speed mixer, where the mixing temperature is 80-100°C;

[0109] ...

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Abstract

The invention discloses a polypropylene composite material with higher toughness at low temperature. The composite material comprises the following components: 60-80 parts of polypropylene, 10-25 parts of long glass fibers, 3-12 parts of a compatibilizer, and 1-10 parts of pentaerythnityl tetrakis-[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]. According to the composite material and methodprovided by the invention, the long glass fibers and the pentaerythnityl tetrakis-[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] are added into the polypropylene, and action of the compatibilizer is combined, so that the polypropylene composite material has good low-temperature toughness, large tensile strength, excellent antistatic ability and good thermal stability. The invention also discloses the preparation method of the polypropylene composite material with the higher toughness at the low temperature. The method provided by the invention has a simple preparation process, easily-available equipment and raw materials, and is suitable for factory large-scale production.

Description

technical field [0001] The invention belongs to the technical field of polypropylene composite material manufacturing, and in particular relates to a polypropylene composite material with high toughness at low temperature and a preparation method thereof. Background technique [0002] The polymer-type polypropylene material has a low heat distortion temperature (100°C), low transparency, and low gloss. The impact strength of the polymer-type polypropylene material increases with the increase of ethylene content, and the strength increases with the increase of ethylene content. decreased 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 polypropyl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K7/10C08K5/134
Inventor 刘小能李楠杨少辉蔡锋
Owner SHANGHAI BANZAN MACROMOLECULE MATERIAL
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