High-toughness high-modulus polypropylene composite material and preparation method thereof

A composite material, polypropylene technology, applied in the field of polypropylene, can solve problems such as poor toughness of polypropylene, and achieve the effects of reducing interfacial tension, improving tensile properties and elastic modulus, high hardness and chemical stability

Active Publication Date: 2015-05-06
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A common solution is to add nanoparticles and microparticles to modify the rigidity and strength. However, the addition of nanoparticles makes the toughness of polypropylene worse.

Method used

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  • High-toughness high-modulus polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] High toughness and high modulus polypropylene composite material, composed of 60 parts of polypropylene matrix, 10 parts of high density polyethylene, 13 parts of polyolefin elastomer, 7 parts of modified wollastonite, 1 part of nano-modified titanium dioxide, and 1 part of modified Boron nitride, 5 parts of maleic anhydride grafted polypropylene, 1 part of anti-phosphite antioxidant and 2 parts of dimethyl silicone oil, wherein the nano-modified particles are silane-coupled with a weight ratio of 1:100 It is made by mixing titanium dioxide with a particle size of 10nm; modified wollastonite is made by mixing silane coupling agent with a weight ratio of 1.5:100 and wollastonite with a particle size of 1250 mesh; modified boron nitride is made by a weight ratio of It is made by mixing 2:100 silane coupling agent and monolayer boron nitride with an average particle size of 5 microns.

[0023] The preparation method of high-toughness and high-modulus polypropylene composit...

Embodiment 2

[0025]High toughness and high modulus polypropylene composite material, composed of 50 parts of polypropylene matrix, 12 parts of high density polyethylene, 15 parts of polyolefin elastomer, 9 parts of modified wollastonite, 2 parts of nano-modified titanium dioxide, 2 parts of modified Boron nitride, 6 parts of maleic anhydride grafted polypropylene, 1.5 parts of anti-phosphite antioxidant and 2.5 parts of dimethyl silicone oil, wherein the nano-modified particles are silane-coupled with a weight ratio of 1:100 It is made by mixing titanium dioxide with a particle size of 10nm; modified wollastonite is made by mixing silane coupling agent with a weight ratio of 1.5:100 and wollastonite with a particle size of 1250 mesh; modified boron nitride is made by a weight ratio of It is made by mixing 2:100 silane coupling agent and monolayer boron nitride with an average particle size of 5 microns.

[0026] The high-toughness and high-modulus polypropylene composite material is prepar...

Embodiment 3

[0028] High toughness and high modulus polypropylene composite material, composed of 57 parts of polypropylene matrix, 11 parts of high density polyethylene, 13 parts of polyolefin elastomer, 7.5 parts of modified wollastonite, 1.5 parts of nano-modified titanium dioxide, 1.5 parts of modified Boron nitride, 5.5 parts of maleic anhydride grafted polypropylene, 1 part of anti-phosphite antioxidant and 2 parts of dimethyl silicone oil, wherein the nano-modified particles are silane-coupled with a weight ratio of 1:100 It is made by mixing titanium dioxide with a particle size of 10nm; modified wollastonite is made by mixing silane coupling agent with a weight ratio of 1.5:100 and wollastonite with a particle size of 1250 mesh; modified boron nitride is made by a weight ratio of It is made by mixing 2:100 silane coupling agent and monolayer boron nitride with an average particle size of 5 microns.

[0029] The high-toughness and high-modulus polypropylene composite material is pr...

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Abstract

The invention discloses a high-toughness high-modulus polypropylene composite material and a preparation method thereof. The high-toughness high-modulus polypropylene composite material consists of 50-62.5 parts of a polypropylene base body, 10-12 parts of high-density polyethylene, 12-15 parts of a polyolefin elastomer, 6-9 parts of modified wollastonite, 0.5-2 parts of nano modified particles, 1-2 parts of modified boron nitride, 5-6 parts of a compatibilizer, 1-1.5 parts of an antioxidant and 2-2.5 parts of a lubricating agent, wherein the nano modified particles are obtained by mixing a silane coupling agent and nano titanium dioxide in a weight ratio of 1 to 100. The preparation process is simple and convenient, the adopted materials are cheap, the comprehensive cost is lower than that of conventional toughness-modified polypropylene, and the produced high-toughness high-strength high-modulus polypropylene is excellent in performance. A composite system disclosed by the invention forms a polymer / flexible interface layer / inorganic particle three-phase composite system.

Description

technical field [0001] The invention relates to the technical field of polypropylene, in particular to a high-toughness and high-modulus polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene is a light general-purpose plastic with the following advantages: excellent mechanical properties, good electrical insulation and processability, high chemical stability, high heat distortion temperature; strength, rigidity and transparency are better than polyethylene, and production Because of its low cost, it is widely used in home appliances, packaging, chemicals, automobiles and other fields, and its output ranks third among general-purpose plastics, second only to polyethylene and polyvinyl chloride. The disadvantages of polypropylene are that its toughness and modulus are average, its low-temperature impact performance is poor, it is easy to age, and its antistatic property, weather resistance and dyeability are poor. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/00C08L51/06C08K13/06C08K9/06C08K3/22C08K3/34C08K3/38B29C47/92B29C48/92
CPCC08K2201/011C08L23/12C08L2205/035C08L23/06C08L23/00C08L51/06C08L83/04C08K13/06C08K3/34C08K2003/2237C08K5/524C08K2003/385
Inventor 魏风军贾秋丽张炎斌刘永辉李博黄仁龙黄如青
Owner HENAN UNIV OF SCI & TECH
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