Wollastonite/polypropylene composite material and preparation method thereof

A technology of composite materials and wollastonite, which is applied in the field of high-strength and high-flow anti-impact wollastonite/polypropylene composite materials and its preparation, can solve the problems of poor fluidity and mechanical properties of composite materials, and improve impact resistance , Shorten modification time and improve fluidity

Active Publication Date: 2018-09-28
JIANGSU ZHAOJUN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN102532692A discloses a method of using acicular wollastonite to fill polypropylene to improve its anti-flying stone impact performance. Surface modification of wollastonite to improve its hydrophobicity, so there is still room for improvement in the mechanical properties of wollastonite / polypropylene composites, especially the impact resistance of the composites
Chinese patent CN102875899A discloses a preparation method of wollastonite toughened and reinforced polypropylene composite material, but the fluidity of the final composite material obtained in this invention is poor, which cannot meet the high fluidity requirements of current injection molding manufacturers for large parts materials

Method used

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  • Wollastonite/polypropylene composite material and preparation method thereof
  • Wollastonite/polypropylene composite material and preparation method thereof
  • Wollastonite/polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 100Kg nano-calcium carbonate coated wollastonite (length-to-diameter ratio 12:1), 1Kg suberic acid is used for surface treatment of wollastonite in CLG-200D powder surface modification machine (treatment temperature: 150°C, treatment time 10min). Then the treated nano-calcium carbonate coated wollastonite, PP (EA5076), POE, polyethylene wax according to the ratio of PP / POE / wollastonite / polyethylene wax=70:10:20:0.4 Extrusion granulation is carried out on the extruder, and then injection molded into a standard sample for a series of performance tests.

Embodiment 2

[0042] 100Kg nano-calcium carbonate coated wollastonite (length-to-diameter ratio 16:1), 1Kg suberic acid is used for surface treatment of wollastonite in CLG-200D powder surface modification machine (treatment temperature: 150°C, treatment time 10min). Then the treated nano-calcium carbonate coated wollastonite, PP (EA5076), POE, polyethylene wax according to the ratio of PP / POE / wollastonite / polyethylene wax=70:10:20:0.4 Extrusion granulation is carried out on the extruder, and then injection molded into a standard sample for a series of performance tests.

Embodiment 3

[0044] 100Kg nano-calcium carbonate coated wollastonite (length-to-diameter ratio 12:1), 1Kg phthalic acid in CLG-200D powder surface modification machine for surface treatment of wollastonite (treatment temperature: 150 ° C, treatment time 10min). Then the treated nano-calcium carbonate coated wollastonite, PPEA (5076), POE, and polyethylene wax are proportioned according to the mass and number of PP / POE / wollastonite / polyethylene wax=70:10:20:0.4 Extrusion granulation is carried out on the extruder, and then injection molded into a standard sample for a series of performance tests.

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Abstract

The invention discloses a wollastonite / polypropylene composite material and a preparation method thereof. The wollastonite / polypropylene composite material comprises, by weight, 65-85 parts of polypropylene, 5-10 parts of flexibilizers, 10-25 parts of surface treatment wollastonite and 0.1-1 part of lubricants, wherein the surface treatment wollastonite is prepared by the preparation method including the steps: adding wollastonite and surface treatment agents into a powder surface modification device according to the weight ratio of 100:(0.5-3) and performing surface coating treatment on the wollastonite. The surface treatment agents are selected from one or more of suberic acid, terephthalic acid and phthalic acid. The wollastonite / polypropylene composite material has excellent flowability and mechanical property.

Description

technical field [0001] The invention belongs to the field of polymer material processing, and in particular relates to a high-strength, high-flow anti-impact wollastonite / polypropylene composite material and a preparation method thereof. Background technique [0002] Wollastonite is currently the most used functional reinforcing filler in the world. Adding it to polypropylene (PP) can significantly improve the performance indicators of PP such as strength, rigidity, heat resistance, and scratch resistance, making wollastonite / The use of PP composite materials has gradually attracted people's attention. Chinese patent CN102532692A discloses a method of using acicular wollastonite to fill polypropylene to improve its anti-flying stone impact performance. Surface modification of wollastonite to improve its hydrophobicity, so the mechanical properties of wollastonite / polypropylene composites have room for improvement, especially the impact resistance of the composites. Chines...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/08C08L23/06C08L91/06C08K9/04C08K3/34C08K9/02C08K9/10C08K3/26
CPCC08K2003/265C08K2201/011C08L23/14C08L2205/02C08L2205/03C08L23/0815C08L23/06C08K9/04C08K3/34C08K9/02C08K9/10C08K3/26C08L91/06
Inventor 鲁平才赵银主董银春
Owner JIANGSU ZHAOJUN NEW MATERIAL CO LTD
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