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Weather resistant polypropylene composite material and its preparation method and uses

A technology of composite materials and polypropylene, which is applied in the field of polypropylene composite materials and its preparation, can solve the problems of poor mechanical properties and UV aging resistance, and achieve the effects of improving UV aging resistance, reducing damage, and promoting force

Inactive Publication Date: 2014-01-15
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to realize the use of glass fiber reinforced materials for outdoor use, various light stabilizers are used in this type of composite material system. The hindered amine light stabilizers widely used today are weakly alkaline, which is different from the weak acidity of glass fiber reinforced systems. There is an antagonistic effect, resulting in poor mechanical properties and UV aging resistance of the material

Method used

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  • Weather resistant polypropylene composite material and its preparation method and uses
  • Weather resistant polypropylene composite material and its preparation method and uses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Weigh 93.0 parts of dry polypropylene copolymer with a melting index of 29g / 10min, 5.0 parts of continuous glass fiber, 1 part of PP-g-GMA compatibilizer, and 0.2 parts of antioxidant 1010 according to the weight ratio. Antioxidant 168 is 0.1 part, radiation sensitizer pentaerythritol acrylate is 0.6 part, and light stabilizer 5589 of Cytec Surface Technology Company is 0.1 part;

[0049] (2) Add the mixed materials into a twin-screw extruder, and melt and extrude to prepare a glass fiber reinforced composite material. Among them, the processing temperature is 180, 195, 210, 210, 220°C from the feeding port to the die port, the main engine speed is 60-80rpm, and the vacuum degree is 0.3MPa. The performance test results are shown in Table 1.

Embodiment 2

[0051] (1) Weigh 82.0 parts of dry copolymerized polypropylene with a tensile strength of 26 MPa, 10.0 parts of continuous glass fiber, 2 parts of PP-g-GMA compatibilizer, 0.2 parts of antioxidant 1010, and 0.2 parts of antioxidant 1010. Oxygen agent 168 is 0.1 part, radiation sensitizer pentaerythritol acrylate is 0.6 part, light stabilizer 5589 is 0.1 part, black masterbatch (PE2772) is 5.0 part;

[0052] (2) Add the mixed materials into a twin-screw extruder, and melt and extrude to prepare a glass fiber reinforced composite material. Among them, the processing temperature is 180, 195, 210, 210, 220°C from the feeding port to the die port, the main engine speed is 60-80rpm, and the vacuum degree is 0.3MPa. The performance test results are shown in Table 1.

Embodiment 3

[0054] (1) Weigh 76.0 parts of dry polypropylene copolymer with a melting index of 45g / 10min, 15.0 parts of chopped glass fiber, 2.4 parts of PP-g-GMA compatibilizer, and 0.2 parts of antioxidant 1010 according to the weight ratio , 0.2 parts of antioxidant 168, 0.2 parts of antioxidant DSTDP, 0.8 parts of radiation sensitizer pentaerythritol acrylate, 0.2 parts of light stabilizer 3808pp5, and 5.0 parts of black masterbatch PE2772;

[0055] (2) Add the mixed materials into a twin-screw extruder, and melt and extrude to prepare a glass fiber reinforced composite material. Among them, the processing temperature is 180, 195, 210, 210, 220°C from the feeding port to the die port, the main engine speed is 60-80rpm, and the vacuum degree is 0.3MPa. The performance test results are shown in Table 1.

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Abstract

The invention belongs to the technical field of polymer composite materials, and relates to a polypropylene composite material and its preparing method and uses. The polypropylene composite material comprises the following components by weight: 40-93 parts of co-polypropylene, 5-60 parts of alkali free glass fiber, 1-6 parts of a compatible agent, 0.1-0.6 part of an antioxidant, 0.1-0.3 part of a light stabilizer, 0.6-1 part of a radiation sensitizing agent and 0-5 parts of an additive. Through cooperation of the functional additives, the high-strength, high-toughness and weather resistant composite material for building templates can be prepared, and the polypropylene composite material can be used for the preparation of various building templates and other outdoor equipment due to its excellent comprehensive properties.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and relates to a polypropylene composite material and its preparation method and application. Background technique [0002] Glass fiber reinforced plastic is a lightweight high-strength engineering structural material. Its tensile, flexural modulus, creep resistance, and fatigue resistance are much better than those of non-reinforced plastics. The main reason is that when an external force acts, the load is transmitted through the fiber, and the fiber has good mechanical properties. In Western Europe, about 50% of fiber-reinforced plastics are used in the automotive industry, and in the United States about 30%. Glass fiber reinforced thermoplastics have excellent rigidity, toughness, warpage resistance, and the price is lower than ABS and engineering plastics. The performance of glass fiber reinforced plastics mainly depends on the following factors: ① glass fiber content, g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L51/06C08K13/04C08K7/14C08K3/04C08K3/36C08K5/103B29C47/92E04G9/05B29C48/92
CPCB29B9/06B29C48/92B29C2948/9258B29C2948/92704C08K2201/004C08K2201/017C08L23/14C08L2201/08C08L2205/03E04G9/05C08L51/06C08K13/04C08K7/14C08K5/103B29C48/04B29C48/40B29C48/911B29C2948/9259B29C2948/92885
Inventor 杨桂生汪海孙利明
Owner HEFEI GENIUS NEW MATERIALS
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