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Polypropylene composite material as well as preparation method and application thereof

A composite material, polypropylene technology, applied in the field of polypropylene composite material and its preparation, can solve the problems of molecular chromatography sticking, the risk of large precipitation sticking, reduce the surface friction coefficient, excellent anti-separation sticking performance, The effect of excellent scratch resistance

Inactive Publication Date: 2018-05-15
WUHAN JINFA TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, patent CN201110226099 uses silicone powder as the main lubricant, which can improve the scratch resistance effect, but the introduction of methyl silicone oil and small molecule processing aids has a greater risk of precipitation and stickiness
Patent CN201210302589 uses erucamide to improve scratch resistance, which migrates to the surface of the material to form a lubricating molecular layer that can improve scratch resistance, but this molecular layer will cause serious precipitation and stickiness

Method used

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  • Polypropylene composite material as well as preparation method and application thereof
  • Polypropylene composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8 and comparative example 1-4

[0037] Weigh the components according to the parts by weight shown in Table 1, fully mix the raw materials of each component in a high-speed mixer according to the proportioning ratio for 5-30 minutes; transport the above-mentioned mixture to the twin-screw extruder, and set the temperature of each section of the screw barrel At 170-240°C, with a rotating speed of 300-500 revolutions per minute, the polypropylene composite material is obtained through melt blending, extrusion and granulation. The corresponding test samples were made according to the standard, and their properties were measured. The specific values ​​are listed in Table 1.

[0038] Table 1 Composition and properties of polypropylene composites

[0039]

[0040] It can be seen from the test results of various examples and comparative examples that the present invention can effectively reduce the surface friction coefficient of the material by adding polyoxymethylene to the polypropylene composite material, th...

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PUM

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Abstract

The invention discloses a polypropylene composite material as well as a preparation method and application thereof. The polypropylene composite material is prepared from ingredients of 35 parts to 97parts of polypropylene resin, 2 parts to 15 parts of polyformaldehyde and 1 part to 5 parts of compatilizer. The polyformaldehyde with self lubrication characteristic is added in the polypropylene composite material disclosed by the invention, so that a surface fraction coefficient of the material is effectively reduced, and a scratch resistance effect is improved; furthermore, excellent separating-out resistance and clamminess resistance characteristics are ensured at the same time; the prepared polypropylene composite material has excellent scratch resistance, separating-out resistance and clamminess resistance and can be widely applied to preparing automotive upholstery.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a polypropylene composite material and its preparation method and application. Background technique [0002] Due to its wide range of sources, excellent mechanical properties and good molding processability, polypropylene composites are widely used in the preparation of automotive interior parts. Automobile door panels, pillars, main and auxiliary dashboards, seat guards, etc. are in direct contact with the occupants and drivers, and should have the characteristics of scratch resistance and anti-deposition sticking. [0003] At present, in the prior art, the scratch resistance of materials is mainly improved by adding small molecule lubricant amides and silicone scratch resistance agents. For example, patent CN201110226099 uses silicone powder as the main lubricant, which can improve the scratch resistance effect, but the introduction of methyl silicone oil...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L59/04C08L59/02C08L51/06C08L23/08C08K3/34
CPCC08L23/14C08L2205/035C08L59/04C08L59/02C08L51/06C08L23/0815C08K3/34
Inventor 李禹函周英辉程文超陈瑶余启生陈胜杰熊值
Owner WUHAN JINFA TECH CO LTD
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