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High heat resistance low density high performance auto polypropylene composite and preparation method thereof

A polypropylene composition, high heat-resistant technology, applied in the field of modified materials, can solve the problems of high heat resistance and high toughness, and achieve excellent comprehensive performance, light weight, and improve the effect of bonding

Active Publication Date: 2012-11-21
KINGFA SCI & TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the disadvantages of high heat resistance and high toughness of polypropylene materials for vehicles, and to provide a high heat resistance low density high performance polypropylene composition

Method used

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  • High heat resistance low density high performance auto polypropylene composite and preparation method thereof
  • High heat resistance low density high performance auto polypropylene composite and preparation method thereof
  • High heat resistance low density high performance auto polypropylene composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Table 1 Formula content

[0065] components Example 1 Comparative example 1 Comparative example 2 Comparative example 3 PP 84.5% 85% 84.5% 84.5% POE 5% 5% 5% 5% al 2 o 3 whiskers 5% 5% 10% - coupling agent 0.5% - 0.5% 0.5% talcum powder 5% 5% - 10%

[0066] Put the above raw materials into a high-speed mixer with a rotation speed of about 1000rpm and mix them according to the weight percentage, and then put them into a twin-screw extruder. Get granulated. Wherein the coupling agent used is the mixture of epoxy resin, hydrogenated butadiene and monoglyceride, 50% by weight of epoxy resin, 25% by weight of hydrogenated butadiene, and 25% by weight of monoglyceride.

[0067] The properties of the prepared samples are as follows:

[0068] Table 2 Performance table

[0069]

[0070] Comparing Example 1 and Comparative Example 2 from Table 2, the embodiment of adding talcum powder and whisker compound...

Embodiment 2~ Embodiment 5

[0073] Table 3 Formula content

[0074] components Example 2 Example 3 Example 4 Example 5 Comparative example 4 PP 64% 64% 65% 58% 58% POE 15% 15% 10% 15% 10% Al 2 o 3 whiskers 3% 10% 13% 15% - coupling agent 1% 1% 2% 2% 2% talcum powder 17% 10% 10% 15% 30%

[0075] Put the above raw materials into a high-speed mixer with a rotation speed of about 1000rpm and mix for 3 minutes. See Example 1 for the extrusion granulation process. Wherein the coupling agent used is the mixture of epoxy resin, hydrogenated butadiene and monoglyceride, 30% by weight of epoxy resin, 40% by weight of hydrogenated butadiene, and 30% by weight of monoglyceride.

[0076] The properties of the prepared samples are as follows:

[0077] Table 4 Performance table

[0078]

[0079] Comparing Examples 2 to 5, it is found that the compounded talcum powder and whiskers can produce materials with different properties through ...

Embodiment 6~ Embodiment 9

[0081] Table 5 Formula content

[0082] components Example 6 Example 7 Example 8 Example 9 PP 64% 64% 64% 64% POE 15% 15% 15% 15% al 2 o 3 whiskers 3% 5% 8% - ZnO whiskers - - - 10% talcum powder 17% 15% 12% 10% coupling agent 1% 1% 1% 1%

[0083] Put the above raw materials into a high-speed mixer with a rotation speed of about 1000rpm and mix for 3 minutes. See Example 1 for the extrusion granulation process. Wherein the coupling agent used is the mixture of epoxy resin, hydrogenated butadiene and monoglyceride, 50% by weight of epoxy resin, 25% by weight of hydrogenated butadiene, and 25% by weight of monoglyceride.

[0084] The properties of the prepared samples are as follows:

[0085] Table 6 Performance table

[0086]

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Abstract

The invention discloses a high heat resistance low density high performance auto polypropylene composite and a preparation method thereof. The polypropylene composite comprises the following components in percentage by weight: 50 to 84.5 percent of PP, 5 to 20 percent of flexibilizer, 5 to 15 percent of crystal whisker, 5 to 15 percent of talcpowder, and 0.5 to 2 percent of coupling agent. The preparation method comprises the following steps of: pre-mixing the components of PP and crystal whisker in a high speed mixer; transporting the mixed raw material into a twin screw extruder; and feeding material at the crystal whisker side into the twin screw extruder and performing fusion, extrusion and granulation to obtain the product. The product is characterized in high heat resistance, low density and high performance, and does not produce environmental pollution during manufacturing and use, thereby reducing the pressure on sewage treatment, and reducing energy consumption. Moreover, thecomposite neither produces the migration of toxic substance nor contains heavy metals. And the product completely meets the ROSH standard.

Description

technical field [0001] The invention belongs to the technical field of modified materials, and in particular relates to a high-heat-resistant, low-density, high-performance polypropylene composition and a preparation method thereof. Background technique [0002] Plastic plays an irreplaceable role for other materials in terms of car aesthetics, comfort, safety, anti-corrosion, light weight and large design freedom. Among the many plastic varieties used in automobiles, the development and application of modified PP materials in automobiles has always been the focus of attention of the automobile industry and the plastics industry. Modified PP materials that meet the different functional requirements of various automotive parts can be obtained through various modification processing methods. In addition to its excellent cost performance, various toughened, filled and reinforced PP materials have been obtained in the major assembly systems of automobiles. widely used. With pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/14C08L63/00C08K13/04C08K7/08C08K3/34C08K5/01C08K5/103B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 杨燕李永华罗忠富王灿耀陈瑶杨波黄达
Owner KINGFA SCI & TECH CO LTD
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