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Propylene material with high modulus and high rigidity for light automobile door panel and preparation method thereof

A high-rigidity, high-modulus technology, applied in high-modulus, high-rigidity light-weight acrylic materials for automobile door panels and its preparation field, can solve the problems of material strength and modulus decline, and achieve improved modulus and rigidity Effect

Inactive Publication Date: 2019-04-09
SUZHOU SUNWAY POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of adding a toughening agent is to improve the impact toughness of the material, but the addition of the toughening agent will also lead to a decrease in the strength and modulus of the material

Method used

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  • Propylene material with high modulus and high rigidity for light automobile door panel and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Taking polypropylene 1 by weight percentage is 36%, polypropylene 2 is 44%, toughening agent 1 is 8%, toughening agent 2 is 4%, superfine inorganic filler 1 is 7%, Irganox 1010 is 0.4%, 5902 is 0.2%, mixed in a high-speed mixer for 3 minutes, and then put into a twin-screw extruder for extrusion and granulation. The temperature of each zone of the screw: 140°C in the first zone, 160°C in the second zone, 190°C in the third zone, and 190°C in the fourth zone. The fifth zone is 200°C, the sixth zone is 200°C, the seventh zone is 200°C, the eighth zone is 210°C, the ninth zone is 210°C, and the machine head is 220°C. Screw host speed: 500 rpm. After the particles are dried, they are put into the injection molding machine for injection molding to prepare samples.

Embodiment 2

[0043] Take by weight polypropylene 1 as 40%, polypropylene 2 as 44%, toughening agent 1 as 8%, ultrafine inorganic filler 1 as 7%, Irganox 1010 as 0.4%, 5902 as 0.2%, mix at high speed Mix in the machine for 3 minutes, and then put it into a twin-screw extruder for extrusion and granulation. The temperature of each zone of the screw: 140°C in the first zone, 160°C in the second zone, 190°C in the third zone, 190°C in the fourth zone, 200°C in the fifth zone, and 200 in the sixth zone. ℃, 200℃ in the seventh zone, 210℃ in the eighth zone, 210℃ in the ninth zone, and 220℃ in the machine head. Screw host speed: 500 rpm. After the particles are dried, they are put into the injection molding machine for injection molding to prepare samples.

Embodiment 3

[0045] Taking polypropylene 1 by weight percentage is 36%, polypropylene 2 is 44%, toughening agent 1 is 8%, toughening agent 2 is 4%, superfine inorganic filler 2 is 7%, Irganox 1010 is 0.4%, 5902 is 0.2%, mixed in a high-speed mixer for 3 minutes, and then put into a twin-screw extruder for extrusion and granulation. The temperature of each zone of the screw: 140°C in the first zone, 160°C in the second zone, 190°C in the third zone, and 190°C in the fourth zone. The fifth zone is 200°C, the sixth zone is 200°C, the seventh zone is 200°C, the eighth zone is 210°C, the ninth zone is 210°C, and the machine head is 220°C. Screw host speed: 500 rpm. After the particles are dried, they are put into the injection molding machine for injection molding to prepare samples.

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Abstract

The invention discloses a propylene material with high modulus and high rigidity for a light automobile door panel and a preparation method thereof. According to the key point of the technical scheme,the propylene material is prepared from the following raw materials in parts by weight: 78-88 parts of polypropylene, 4-8 parts of ultrafine inorganic filler, 6-12 parts of flexibilizer, 0.2-0.5 partof thermal stabilizer, 0-0.2 part of other additives, 1-2 parts of crystal whiskers and 1-2 parts of phlogopite. The preparation method comprises the following steps performing dry mixing on raw materials in a high-speed mixer for 2-10 minutes; putting into a twin-screw extruder; melting, extruding, cooling and granulating. The propylene material has excellent performance, and can meet the strength requirement for automobile door panels.

Description

technical field [0001] The invention relates to an acrylic composite material, more specifically, it relates to a high modulus, high rigidity acrylic material for lightweight automobile door panels and a preparation method thereof. Background technique [0002] The automobile industry has developed rapidly in recent years. As the number of cars increases year by year, the problems of vehicle energy consumption and exhaust emissions are becoming more and more prominent. Therefore, the requirements for energy saving and emission reduction in the process of automobile manufacturing and use are becoming more and more urgent. The use of lightweight materials plays a very important role in energy saving and emission reduction. Plastics are lightweight, environmentally friendly, and easy to form and process. Therefore, increasing the use of plastics in automobiles is the key to reducing the weight of automobiles. Reducing automobile weight is also one of the most effective measur...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L53/00C08L23/06C08L23/08C08L1/02C08K13/02C08K3/34C08K5/134
CPCC08K2201/003C08K2201/014C08L23/12C08L53/00C08L2205/035C08L2205/16C08L23/06C08L23/0815C08L1/02C08K13/02C08K3/34C08K5/1345
Inventor 周安郏樑曹崴
Owner SUZHOU SUNWAY POLYMER
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