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High-rigidity and low-warpage PP enhancement composite material and method for preparing same

A reinforced composite material and low warpage technology, applied in the field of polymer materials, can solve problems such as product performance impact, achieve the effects of small shrinkage, improved performance, and expanded use range

Active Publication Date: 2008-11-19
SHENZHEN FUHENG PLASTICS PIGMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, each of the above-mentioned methods has its shortcomings and has a certain impact on product performance.

Method used

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  • High-rigidity and low-warpage PP enhancement composite material and method for preparing same

Examples

Experimental program
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Effect test

example 1

[0034] Weigh the raw materials and additives of each component by weight percentage, among which, the weight ratio of PP is 64.1%, glass flake is 20%, mica powder is 10%, POE is 5%, 1010 is 0.2%, 168 is 0.4 %, calcium stearate 0.3%. After being pre-mixed by a high-speed mixer, it is granulated by twin-screw extrusion. The temperature setting of each zone of the twin-screw is: 200-215°C for zone 1, 205-220°C for zone 2, 210-220°C for zone 3, 210-220°C for zone 4, 210-218°C for zone 5, 210-215°C for zone 6, Die head temperature 200-215°C. The produced particles are made into test specimens according to the national standard, and various performance tests are carried out to obtain corresponding data.

Embodiment 2

[0036] Weigh the raw materials and additives of each component by weight percentage, among which, the weight ratio of PP is 60%, glass flake is 14%, mica powder is 20%, POE is 5%, 1010 is 0.3%, 168 is 0.4% %, calcium stearate 0.3%. After being pre-mixed by a high-speed mixer, it is granulated by twin-screw extrusion. The temperature setting of each zone of the twin-screw is: 200-215°C for zone 1, 205-220°C for zone 2, 210-220°C for zone 3, 210-220°C for zone 4, 210-218°C for zone 5, 210-215°C for zone 6, Die head temperature 200-215°C. The produced particles are made into test specimens according to the national standard, and various performance tests are carried out to obtain corresponding data.

Embodiment 3

[0038] Weigh the raw materials and additives of each component by weight percentage, among which, the weight ratio of PP is 64.1%, glass flake is 15%, mica powder is 15%, POE is 5%, 1010 is 0.2%, 168 is 0.4 %, calcium stearate 0.3%. After being pre-mixed by a high-speed mixer, it is granulated by twin-screw extrusion. The temperature setting of each zone of the twin-screw is: 200-215°C for zone 1, 205-220°C for zone 2, 210-220°C for zone 3, 210-220°C for zone 4, 210-218°C for zone 5, 210-215°C for zone 6, Die head temperature 200-215°C.

[0039] The produced particles are made into test specimens according to the national standard, and various performance tests are carried out to obtain corresponding data.

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Abstract

The invention discloses a high-rigidity low-warpage PP reinforced composite material and a method for preparing the same. The compositions by weight percentage of the composite material are: 50 to 65 percent of PP, 10 to 20 percent of glass flakes, 10 to 20 percent of mica, 0.2 to 0.4 percent of main antioxidant, 0.2 to 0.4 percent of auxiliary antioxidant, 3 to 10 percent of toughening agent and 0.2 to 1 percent of lubricant. The high-rigidity low-warpage PP reinforced composite material and the method greatly improve the performance of the PP and have superior dimension stability. The use range of the PP is enlarged, thereby the high-rigidity low-warpage PP reinforced composite material can be used on plastic parts with high strength requirement, low shrinkage factor and high assembly precision, and has the advantage in cost.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-rigidity and low-warpage PP reinforced composite material and a preparation method thereof. Background technique [0002] Polypropylene is a widely used general-purpose plastic with good overall performance, low density and certain transparency; good surface gloss; good electrical insulation; good stress crack resistance and good chemical resistance; although polypropylene It has the above excellent properties, but due to the disadvantages of low mechanical strength, poor heat resistance, large shrinkage deformation, and poor creep resistance, its application, especially as a structural material and a product with high size requirements, is greatly restricted. Therefore, it is necessary to modify propylene accordingly. [0003] At present, the modification of polypropylene mainly includes the following points: [0004] 1) Using glass fiber reinforcement, the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/06C08K9/06B29B9/12B29C47/92B29C48/40B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C2948/9259B29C2948/92828B29C2948/92866B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 申应军
Owner SHENZHEN FUHENG PLASTICS PIGMENT
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