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Low-density high-fluidity high-rigidity talcum powder filled polypropylene material

A technology of polypropylene material and high fluidity, applied in the field of polymer modification, can solve problems such as easy warping and deformation, poor dimensional stability, etc., and achieve high fluidity and good appearance

Inactive Publication Date: 2017-08-15
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because of its disadvantages such as poor dimensional stability and easy warping and deformation when exposed to heat, in the actual application process, 10%-40% talcum powder is often added to the polypropylene material for physical modification to improve the rigidity and durability of the material. Dimensional stability

Method used

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  • Low-density high-fluidity high-rigidity talcum powder filled polypropylene material
  • Low-density high-fluidity high-rigidity talcum powder filled polypropylene material
  • Low-density high-fluidity high-rigidity talcum powder filled polypropylene material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh 60 parts of high fluidity homopolypropylene, 30 parts of high fluidity copolymerized polypropylene, 5 parts of high fluidity ethylene-octene copolymer, 5 parts of 3000 mesh talcum powder, 1 part of color masterbatch, 0.3 part of antioxidant 1010, 0.3 parts of antioxidant 168;

[0032] The above-mentioned raw materials are put into a high-speed mixer and fully stirred to obtain a premixed material, and the premixed material is put into the main feeding port of a twin-screw extruder for melt extrusion, granulated and dried, and the product is obtained.

[0033] The melt extrusion conditions of the twin-screw extruder are: the temperature of the first zone is 90°C, the temperature of the second zone is 200°C, the temperature of the third zone is 200°C, the temperature of the fourth zone is 220°C, the temperature of the fifth zone is 220°C, the temperature of the sixth zone is 220°C, and the temperature of the seventh zone is 220°C. The temperature in the zone is 220°...

Embodiment 2

[0035] Weigh 57 parts of high fluidity homopolypropylene, 30 parts of high fluidity copolymerized polypropylene, 8 parts of high fluidity ethylene-octene copolymer, 5 parts of 3000 mesh talcum powder, 1 part of masterbatch, 0.3 part of antioxidant 1010, 0.3 parts of antioxidant 168;

[0036] The above-mentioned raw materials are put into a high-speed mixer and fully stirred to obtain a premixed material, and the premixed material is put into the main feeding port of a twin-screw extruder for melt extrusion, granulated and dried, and the product is obtained.

[0037] The melt extrusion conditions of the twin-screw extruder are: the temperature of the first zone is 90°C, the temperature of the second zone is 200°C, the temperature of the third zone is 200°C, the temperature of the fourth zone is 220°C, the temperature of the fifth zone is 220°C, the temperature of the sixth zone is 220°C, and the temperature of the seventh zone is 220°C. The temperature in the zone is 220°C, the...

Embodiment 3

[0039] Weigh 60 parts of high fluidity homopolypropylene, 30 parts of high fluidity copolymerized polypropylene, 8 parts of high fluidity ethylene-octene copolymer, 2.5 parts of 3000 mesh talcum powder, 2.5 parts of 5000 mesh talcum powder, 1 part of color Mother, 0.3 parts of antioxidant 1010, 0.3 parts of antioxidant 168;

[0040] The above-mentioned raw materials are put into a high-speed mixer and fully stirred to obtain a premixed material, and the premixed material is put into the main feeding port of a twin-screw extruder for melt extrusion, granulated and dried, and the product is obtained.

[0041] The melt extrusion conditions of the twin-screw extruder are: the temperature of the first zone is 90°C, the temperature of the second zone is 200°C, the temperature of the third zone is 200°C, the temperature of the fourth zone is 220°C, the temperature of the fifth zone is 220°C, the temperature of the sixth zone is 220°C, and the temperature of the seventh zone is 220°C. ...

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Abstract

The invention provides a low-density high-fluidity high-rigidity talcum powder filled polypropylene material which is prepared from the following components in parts by weight: 30-60 parts of high-fluidity homo-polypropylene, 5-25 parts of high-fluidity co-polypropylene, 5-20 parts of a high-fluidity ethylene-octylene copolymer, 2-8 parts of talcum powder, 1-2 parts of a color master batch, 0.2-0.4 part of a main antioxidant and 0.2-0.4 part of an auxiliary antioxidant. According to the low-density high-fluidity high-rigidity talcum powder filled polypropylene material disclosed by the invention, the material maintains high rigidity under the condition that the filling amount of the talcum powder is small. The parts prepared by using the material can be kept at good functionality.

Description

technical field [0001] The invention belongs to the technical field of polymer modification, and in particular relates to a polypropylene material filled with talcum powder with low density, high flow and high rigidity. Background technique [0002] Polypropylene is widely used in automobiles, home appliances, food packaging and other fields due to its excellent performance and huge supply. However, because of its disadvantages such as poor dimensional stability and easy warping and deformation when exposed to heat, in the actual application process, 10%-40% talcum powder is often added to the polypropylene material for physical modification to improve the rigidity and durability of the material. Dimensional stability. [0003] In recent years, in order to adapt to the theme of energy saving and environmental protection, various automobile OEMs have proposed various lightweight solutions for automotive materials, such as thinning the wall of automotive exterior materials, r...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L23/08C08K13/02C08K3/34B29C47/92B29C48/92
CPCC08L23/12B29C48/92B29C2948/9258B29C2948/92704C08K2201/003C08K2201/014C08L2205/03C08L23/14C08L23/0815C08K13/02C08K3/34
Inventor 徐昌竹李晟张春怀李欣张栋玮钱文轩柴新龙陶四平
Owner TIANJIN KINGFA NEW MATERIAL
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