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Polypropylene composite material as well as preparation method and application thereof

A technology for composite materials and polypropylene, applied in the field of polypropylene composite materials and its preparation, can solve the problems of inability to obtain polypropylene, etc., and achieve the effect of simple and easy operation, simple process and good surface properties

Inactive Publication Date: 2012-01-25
ANHUI KEJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although glass fiber reinforced polypropylene has high strength and high impact resistance, it is a PP modified material with great industrial demand, but glass fiber reinforced polypropylene is prone to warping and deformation when it is injected into a plane structure, such as injection molding plastics. The planar structure of the tool has obvious warping defects. In addition, there is a contradiction between the surface properties of the existing polypropylene and the strength of the material, and it is impossible to obtain a polypropylene with good surface properties and good strength.
Moreover, the formula system announced at this stage cannot solve this defect

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

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preparation example Construction

[0031] The embodiment of the present invention also provides the preparation method of above-mentioned polypropylene composite material, and its technological process is as follows figure 1 shown. The method comprises the steps of:

[0032] Step S01: weighing each component according to the above formula of polypropylene composite material;

[0033] Step S02: mixing components such as polypropylene, polymethyl methacrylate, white oil, compatibilizer, filler and lubricant to form a mixed material;

[0034] Step S03: Add the mixed material into the feeding port of the extruder, and at the same time add glass fibers into the fiberizing port of the extruder, perform melt extrusion at 140-220°C, and pelletize to obtain the polypropylene composite material .

[0035] Specifically, in the above-mentioned step S01, the preferred solution for weighing each component of the above-mentioned polypropylene composite material formulation is as described above, and in order to save space,...

Embodiment 1

[0042] A kind of polypropylene composite material that is used to prepare plastic knife, it comprises the formula component of following percentage by weight:

[0043] PP resin 39%, industrial grade white oil 0.6%, compatibilizer 10%, PMMA 10%, filler 30%, lubricant 0.4%, glass fiber 10%. Among them, the PP resin is V30G (Sinopec) homopolymerized polypropylene, the compatibilizer is polypropylene grafted maleic anhydride, the PMMA is Chimei CM-205 with a heat distortion temperature greater than 100°C, and the filler is talcum powder with a particle size of 2000 mesh , the lubricant is 100% ultra-high molecular weight polysiloxane of Wacker Chemical brand PELLET S, and the glass fiber is alkali-free glass fiber of Jushi 988A.

[0044] The preparation method is: premix the above PP resin, white oil, compatibilizer, PMMA, filler and lubricant in a mixer, and then put the mixed raw materials into the feed port of the twin-screw extruder Feed, at the same time, feed the glass fibe...

Embodiment 2

[0050] A kind of polypropylene composite material that is used to prepare plastic knife, it comprises the formula component of following percentage by weight:

[0051] PP resin 36.8%, industrial grade white oil 0.6%, compatibilizer 13%, PMMA 8%, filler 26%, lubricant 0.6%, glass fiber 15%. Among them, the PP resin is V30G (Sinopec) homopolymerized polypropylene, the compatibilizer is polypropylene grafted maleic anhydride, the PMMA is Nantong Liyang VH6 with a heat distortion temperature greater than 100°C, and the filler is talcum powder with a particle size of 2000 mesh , the lubricant is 100% ultra-high molecular weight polysiloxane of the Wacker chemical grade PELLET S as an active ingredient, and the glass fiber is alkali-free glass fiber of Taishan T635C.

[0052] The preparation method is: premix the above PP resin, white oil, compatibilizer, PMMA, filler and lubricant in a mixer, and then put the mixed raw materials into the feed port of the twin-screw extruder Feed, ...

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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 comprises the following components in percentage by weight: 22-39% of polypropylene, 2-10% of poly(methyl methacrylate), 0.6-1% of white oil, 10-20% of compatibilizer, 20-30% of filler, 20-30% of glass fiber and 0.4-1% of lubricant. The polypropylene composite material is prepared by melting extrusion, thus the viscosity of each component is reduced under the high-speed shearing action, and the dispersity of each component is enhanced. Therefore, the polypropylene composite material has low warping, high strength, good surface performance and high strength performance. The preparation method has simple processes, can be implemented by a common melting extruder without need of special equipment, and has simple and feasible operation processes.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a polypropylene composite material and its preparation method and application. Background technique [0002] Polypropylene (PP) is one of the five general-purpose plastics. Its output and consumption are second only to polyethylene (PE) and polyvinyl chloride (PVC). It is the third largest plastic variety and a bulk general-purpose resin product closely related to our daily life. . At present, polypropylene is the fastest-growing general-purpose plastic in the world. Polypropylene is the most widely used in general-purpose plastics. There are various methods for its modification and comprehensive products. [0003] At present, although glass fiber reinforced polypropylene has high strength and high impact resistance, it is a PP modified material with great industrial demand, but glass fiber reinforced polypropylene is prone to warping and deformation when it is injecte...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L33/12C08L51/06C08L83/04C08K3/34C08K7/14
Inventor 徐东徐永张博
Owner ANHUI KEJU NEW MATERIALS
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