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Polypropylene composite material and preparation method thereof

A composite material, polypropylene technology, applied in the field of polypropylene, can solve the problems of high shrinkage, difficult to achieve high strength, high density, etc., and achieve the effect of energy saving and emission reduction.

Active Publication Date: 2010-07-14
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polypropylene composite material is a kind of PP material. Polypropylene filling material is widely used in the preparation of polypropylene composite material. The common polypropylene filling material is talcum powder, clay, etc. The traditional polypropylene composite material prepared has a high density. The shrinkage rate is large during processing, and it is difficult to achieve high strength

Method used

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  • Polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Weigh raw materials according to the following formula: (kg)

[0048] Polypropylene 70, POE 10, hollow glass microsphere 10, titanium dioxide 0.5, silane coupling agent KH570 2, POE grafted maleic anhydride 3, stearic acid 1, antimony trioxide 1, decabromodiphenylethane 2.5 .

[0049] The hollow glass microspheres are selected: the hollow glass microspheres of the 3M company model M30K.

[0050] Preparation:

[0051] (1) 70 kg of polypropylene, 10 kg of POE, 10 kg of hollow glass microspheres, 0.5 kg of titanium dioxide, 2 kg of silane coupling agent KH570, 3 kg of POE grafted maleic anhydride, and 1 kg of stearic acid 1 kg of antimony, 2.5 kg of decabromodiphenylethane, accurately weighed according to the formula for later use;

[0052] (2) Soak 10 kilograms of hollow glass microspheres in 2 kilograms of silane coupling agent KH570 for 30 minutes to obtain surface-treated hollow glass microspheres with good compatibility;

[0053] (3) Place the surface-treated holl...

Embodiment 2

[0056] Weigh raw materials according to the following formula: (kg)

[0057] Polypropylene 65, EPDM 10, SBS 3, hollow glass microsphere 15, antioxidant 1010 1.5, silane coupling agent KH5501, EPDM grafted maleic anhydride, 0.5, stearic acid 0.5, PE wax 1, silicone rubber 0.5, three Antimony oxide 1, MCA 1.

[0058] The hollow glass microspheres are hollow glass microspheres of S60SH model of 3M Company.

[0059] Preparation:

[0060](1) 65 kilograms of polypropylene, 10 kilograms of EPDM, 3 kilograms of SBS, 15 kilograms of hollow glass microspheres, 1.5 kilograms of antioxidant 1010, 1 kilogram of silane coupling agent KH550, 0.5 kilogram of EPDM grafted maleic anhydride, stearic acid 0.5 kg, PE wax 1 kg, silicone rubber 0.5, antimony trioxide 1 kg, MCA 1 kg, weighed accurately according to the formula for later use;

[0061] (2) Soak 15 kg of hollow glass microspheres in 1 kg of silane coupling agent KH550 for 10 min to obtain surface-treated, compatible hollow glass micr...

Embodiment 3

[0067] Weigh raw materials according to the following formula: (kg)

[0068] Polypropylene 60, POE 2, EPDM 8, hollow glass microsphere 17, titanium dioxide 1, antioxidant CPL (caprolactam) 2.5, silane coupling agent KH560 1, PP grafted maleic anhydride 3, PE wax 0.3, silicone rubber 0.2 , antimony trioxide 5.

[0069] The preparation method is as in Example 1.

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Abstract

The invention discloses a polypropylene composite material and a preparation method thereof, wherein the formulation of the polypropylene composite material comprises the components by weight percent: 40-70% of polypropylene, 5-30% of toughening agent, 10-40% of hollow glass microspheres, 0.2-5% of photo-thermal stabilizing agent, 0.1-5% of coupling agent, 0.5-5% of compatilizer, 0.1-5% of processing agent and 2-15% of flame retardant agent. The preparation method of the polypropylene composite material comprises the steps that: mixing the raw materials, soaking the hollow glass microspheres in the coupling agent, drying, mixing, pelleting and obtaining the polypropylene composite material. By adding the hollow glass microspheres with high strength, the invention reduces the density of the PP material, improves the strength and the dimensional stability of the PP material, has important significance for reducing the weight of plastics, especially for lightening the weight of automobiles as well as saving energy and reducing emission in the plastic material used for the automobiles.

Description

technical field [0001] The invention relates to the technical field of polypropylene, and discloses a polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) material has the advantages of excellent mechanical properties, low cost, easy processing, non-toxicity, and good chemical stability, so it is widely used in automobiles, electronics, home appliance parts, construction and other fields. However, with the development of technology, especially to meet the needs of automobile weight reduction, it is necessary to develop low-density polypropylene materials. Polypropylene composite material is a kind of PP material. Polypropylene filling material is widely used in the preparation of polypropylene composite material. The common polypropylene filling material is talcum powder, clay, etc. The traditional polypropylene composite material prepared has a high density. The shrinkage rate is large during processing, and it...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K13/06C08K9/06C08K7/28
Inventor 李进
Owner CHERY AUTOMOBILE CO LTD
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