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Polyolefin composition

A composition and polyolefin technology, applied in the field of polyolefin compositions, can solve the problems of inability to obtain high toughness, high dimensional stability polyolefin compositions and the like

Inactive Publication Date: 2006-02-22
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to disclose a preparation method of a polyolefin composition, so as to overcome the disadvantage that a polyolefin composition with high rigidity, high toughness and high dimensional stability cannot be obtained in the above-mentioned technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0029] The materials were weighed according to the components and proportions provided in Table 1, mixed uniformly in a high-speed mixer, and extruded by a twin-screw extruder to obtain a composition. The extrusion temperature of each section is set at 190°C-200°C-210°C-210°C-210°C-210°C-220°C.

[0030] The test of sample performance is carried out according to ASTM standard. The test results are shown in Table 2.

Embodiment 6-10

[0031] Embodiment 6-10 (comparative example)

[0032] The materials were weighed according to the components and proportions provided in Table 3, mixed uniformly in a high-speed mixer, and extruded by a twin-screw extruder to obtain a composition. The extrusion temperature of each section is set at 190°C-200°C-210°C-210°C-210°C-210°C-220°C.

[0033] The test of sample performance is carried out according to ASTM standard. The test results are shown in Table 4.

[0034] components

[0035] Test items

[0036] components

[0037] Test items

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PUM

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Abstract

The invention discloses a polyolefin composition, wherein the constituents comprises (by weight ratio): polyolefin resin 20-70%, mineral filler 15-50%, functionalized polystyrene resin 2-25%, coupling agent 0-0.5%, anti-oxidant 0.1-1%. The produced polyolefin composition has good rigidity and tenacity, thus can be used for substituting PS (polystyrene) material in manufacturing outer casings or bases of various household electrical appliances or automobile interior members.

Description

technical field [0001] The invention relates to a polyolefin composition with high dimensional stability and high performance. Background technique [0002] Polypropylene is a resin with excellent comprehensive properties, which has good processability, good rigidity and toughness. Polypropylene is a semi-crystalline resin with a large dimensional shrinkage rate. The shrinkage rate of unmodified polypropylene resin is 1.4-1.8%, and the dimensional stability is not good when used in the manufacture of large parts. Usually, improving the dimensional stability of polypropylene is achieved by adding fillers, but the addition of fillers drastically reduces the toughness of polypropylene materials. The invention obtains a polyolefin composition with very low dimensional stability, rigidity and toughness. The composition can replace materials such as ABS and HIPS to manufacture components such as TV sets, air conditioner bases and the like. [0003] P. L. Schell reported the use...

Claims

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Application Information

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IPC IPC(8): C08L23/02C08K3/40
Inventor 杨桂生李小俊
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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