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High-strength and high-tenacity polypropylene composite materials and preparation method thereof

A composite material, high-strength and high-toughness technology, applied in the field of high-strength and high-toughness polypropylene composite material and its preparation, can solve problems such as poor strength and poor polypropylene toughness, and achieve low formulation cost, high fluidity, and heat resistance. Sex-enhancing effect

Inactive Publication Date: 2014-01-08
四川万润非金属矿物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-strength and high-toughness polypropylene composite material and its preparation method, which solves the problems of poor toughness and poor strength of existing polypropylene

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A high-strength and high-toughness polypropylene composite material, composed of the following components by weight percentage: homopolypropylene 51%, calcium carbonate 25%, calcium sulfate whisker masterbatch 15%, coupling agent KH550 1.2%, Malay Anhydride graft modified polypropylene 5%, calcium stearate 2.3%, antioxidant 1010 and 168 compound 0.5%. Among them, the calcium sulfate whisker masterbatch is composed of the following components by weight percentage: polyethylene 10%, calcium sulfate whisker (produced by Sichuan Wanrun Non-metallic Mineral Materials Co., Ltd.) 80%, polypropylene wax 9.8%, KH550 0.2 %.

[0038] The preparation method of described masterbatch is as follows:

[0039] First, add calcium sulfate whiskers to a high-speed blender, add coupling agent KH550 at a speed of 1500 rpm, and stir for 6 minutes at a speed of 1500 rpm;

[0040] Then, polyethylene and polypropylene wax were added into a high mixer, and mixed for 2 minutes at a speed of 800 rp...

Embodiment 2

[0047] A high-strength and high-toughness polypropylene composite material is composed of the following components by weight percentage: homopolypropylene 37.8%, calcium carbonate 40%, calcium sulfate whisker masterbatch 8%, coupling agent aluminate 2%, 8% polypropylene grafted with maleic anhydride, 4% zinc stearate, 0.2% compound of antioxidants 1010 and 168. Among them, the calcium sulfate whisker masterbatch is composed of the following components in weight percentage: ethylene-hexene copolymer 20%, calcium sulfate whisker (produced by Sichuan Wanrun Non-metallic Mineral Materials Co., Ltd.) 58.5%, polyethylene wax 20% %, KH570 0.2%.

[0048] The preparation method of described masterbatch is as follows:

[0049] First, add calcium sulfate whiskers to a high-speed blender, add coupling agent KH570 at a speed of 1500 rpm, and stir for 8 minutes at a speed of 1500 rpm;

[0050] Then, add ethylene-hexene copolymer and polyethylene wax into a high mixer, and mix for 3 minute...

Embodiment 3

[0057] A high-strength and high-toughness polypropylene composite material, which is composed of the following components in weight percentage: block copolymer polypropylene 61.8%, calcium carbonate 10%, calcium sulfate whisker masterbatch 25%, coupling agent titanate 0.1% , maleic anhydride graft modified polypropylene 2%, lubricant N.N'-ethylene bisstearamide 0.3%, antioxidant 1010 and 168 compound 0.8%. Among them, the calcium sulfate whisker masterbatch is composed of the following components by weight percentage: polypropylene 15%, ethylene-octene copolymer 15%, calcium sulfate whisker (produced by Sichuan Wanrun Non-metallic Mineral Materials Co., Ltd.) 50% , polypropylene wax 18.7%, silicon 69 (bis-[gamma-(triethoxysilyl)propyl]tetrasulfide) 1.3%.

[0058] The preparation method of described masterbatch is as follows:

[0059] First, calcium sulfate whiskers were added to a high blender, and silicon 69 (bis-[γ-(triethoxysilyl)propyl]tetrasulfide) was added at 1500 rpm....

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Abstract

The invention discloses high-strength and high-tenacity polypropylene composite materials. The high-strength and high-tenacity polypropylene composite materials solve the problems that existing polypropylene is poor in tenacity and poor in strength. The high-strength and high-tenacity polypropylene composite materials are formed by the following components, by weight, 35-75% of polypropylene, 10-40% of calcium carbonate, 8-25% of calcium sulfate whisker masterbatch, 0.1-2% of coupling agents, 2-8% of compatilizer, 0.3-4% of lubricating agents and 0.2-0.8% of antioxygen. The invention further provides a preparation method of the high-strength and high-tenacity polypropylene composite materials. According to the preparation method of the high-strength and high-tenacity polypropylene composite materials, through the mode that calcium sulfate whiskers are made into masterbatch, the calcium sulfate whisker masterbatch is added to plastics to carry out co-extrusion mixing with the plastics and the like, thus, compared with powdery whiskers, material preparation can be evener and controllable, the problem that material preparation of the calcium sulfate whiskers is difficult is solved, meanwhile, the calcium sulfate whiskers are made to have better dispersity in plastic substrate, and the surfaces of products are smoother.

Description

technical field [0001] The invention relates to a high-strength and high-toughness polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene is widely used in chemical industry, construction, light industry, automobile manufacturing, home appliances, packaging materials and other fields due to its advantages of small specific gravity, high strength, excellent chemical resistance, easy processing and low price. At present, polypropylene is divided into homopolypropylene and copolypropylene. Homopolypropylene has good gloss, good heat resistance, high heat distortion temperature, strong corrosion resistance, excellent electrical insulation, non-toxic and tasteless, easy to process, and elastic modulus , Tensile strength and yield strength are high, but the impact strength is low. In order to overcome this shortcoming, block copolymerized polypropylene (PPB) and random copolymerized polypropylene (PPR) can be produced by int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L53/00C08K13/06C08K9/06C08K9/04C08K3/26C08K7/08C08J3/22B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/92C08L23/12B29B9/06B29C2948/9258B29C2948/92704C08J3/226C08J2323/12C08J2353/00C08J2423/06C08J2423/08C08J2423/12C08L53/00C08L2205/025C08L2205/035C08L51/06C08L23/06C08K13/06C08K9/06C08K7/08C08K2003/265C08L23/0815C08K9/04
Inventor 何波兵孙文道
Owner 四川万润非金属矿物材料有限公司
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