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Extrusion-grade high-rigidity and high-toughness polypropylene material as well as preparation method and application thereof

A polypropylene material, extrusion-grade technology, applied in the material field, can solve the problems of poor rigidity, high specific gravity of ABS material and high cost

Inactive Publication Date: 2020-04-10
大韩道恩高分子材料(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ABS material has the defects of high specific gravity and high cost, which limits its application.
As a common polymer material, polypropylene is a semi-crystalline thermoplastic with high impact resistance, excellent mechanical properties, organic solvent corrosion resistance, acid and alkali resistance, and lower density than ABS. However, its rigidity is poor, and it cannot reach the rigidity of ABS material, so it cannot be used as a substitute material for ABS material.

Method used

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  • Extrusion-grade high-rigidity and high-toughness polypropylene material as well as preparation method and application thereof
  • Extrusion-grade high-rigidity and high-toughness polypropylene material as well as preparation method and application thereof

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preparation example Construction

[0024] The present invention also provides a preparation method of the extrusion-grade high-rigidity and high-toughness polypropylene material described in the above technical solution, comprising the following steps:

[0025] After mixing the copolymerized polypropylene, homopolypropylene, mineral filler, high-density polyethylene and processing aids, melt extrusion and granulation are carried out in sequence to obtain extrusion-grade high-rigidity and high-toughness polypropylene material.

[0026] The preparation method provided by the invention has simple process and is suitable for industrial application.

[0027] In the present invention, the mixing is preferably dry mixing, the mixing speed of the dry mixing is preferably 400-600 rpm, and the dry mixing time is preferably 5-10 minutes. In the embodiment of the present invention, the mixing is preferably performed in a high-speed mixer, and the high-speed mixer is preferably a vertical stirring mixer.

[0028] In the pr...

Embodiment 1

[0034] In this example, the raw materials are:

[0035] Ethylene-propylene block copolymer: when the test condition is 230°C / 2.16kg, the melt flow rate of the ethylene-propylene block copolymer is 0.22g / 10min, and the impact strength at room temperature is 70kJ / m 2 ;

[0036] Homopolypropylene: melt index is 6.5g / 10min, flexural modulus is 2400Mpa, impact strength is 4.5kJ / m 2 ;

[0037] Barium sulfate: the average particle size is 1.5 μm;

[0038] High-density polyethylene: the melt index is 0.2g / 10min;

[0039] Antioxidant 1010, antioxidant 168, nucleating agent (ie MilladNX8000K);

[0040] Weigh raw materials according to the following mass percentages: 45% ethylene propylene block copolymer, 39.5% homopolypropylene, 5% barium sulfate, 10% high-density polyethylene, 10100.2% antioxidant, 1680.1% antioxidant, nucleating Agent 0.2%;

[0041]Stir the weighed raw materials in a vertical stirring high-speed mixer for 10 minutes at a speed of 600rpm, and then transport them...

Embodiment 2

[0043] Using the raw materials in Example 1, weigh the raw materials according to the following mass percentages: ethylene propylene block copolymer 45%, homopolypropylene 34.5%, barium sulfate 10%, high density polyethylene 10%, antioxidant 10100.2% , antioxidant 1680.1%, nucleating agent 0.2%;

[0044] Extrusion-grade high-rigidity and high-toughness polypropylene was prepared according to the method in Example 1.

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Abstract

The invention provides an extrusion-grade high-rigidity and high-toughness polypropylene material as well as a preparation method and an application thereof, and belongs to the technical field of materials. The extrusion-grade high-rigidity high-toughness polypropylene material provided by the invention comprises the following raw materials by the mass percentage: 40 to 50% of co-polypropylene, 30.5 to 40.5% of homo-polypropylene, 5 to 10% of a mineral filler, 5 to 15% of high-density polyethylene and 0.5 to 1.5% of a processing aid. All the components are matched, and the obtained polypropylene material has high rigidity and toughness and can replace ABS materials to be used.

Description

technical field [0001] The invention relates to the field of material technology, in particular to an extrusion-grade high-rigidity and high-toughness polypropylene material and a preparation method and application thereof. Background technique [0002] ABS material is a thermoplastic polymer structure material with high strength, good toughness and easy processing and molding. It is widely used in the fields of automobiles, electronic appliances, building materials and DIY production. However, ABS material has the defects of high specific gravity and high cost, which limit its application. As a common polymer material, polypropylene is a semi-crystalline thermoplastic with high impact resistance, excellent mechanical properties, organic solvent corrosion resistance, acid and alkali resistance, and lower density than ABS. However, its rigidity is poor, and it cannot reach the rigidity of ABS material, so it cannot be used as a substitute material for ABS material. Content...

Claims

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Application Information

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IPC IPC(8): C08L53/00C08L23/12C08L23/06C08K3/30C08K5/134C08K5/526C08K13/02
CPCC08L53/00C08K2201/003C08K2003/3045C08L2201/10C08L2201/08C08L2205/03C08L2205/02C08L2207/062
Inventor 王泽方祁乔宇杨瑜金东埈河贤洙
Owner 大韩道恩高分子材料(上海)有限公司