Polypropylene composition and preparation method thereof

A polypropylene composition and polypropylene technology, applied in the field of polymer materials, can solve the problems of unattainable system odor, low impact strength, high odor, etc., and achieve huge economic and social benefits, low cost, high resistance The effect of impact strength

Inactive Publication Date: 2017-05-31
FOSHAN RUIJIAN SPORTS EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Some systems in the above studies have defects in mechanical properties, such as high rigidity but low impact strength; some raw materials used have strong odor, and they are brought into the composite material system, so that the odor of the system cannot reach a lower level

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~6

[0035] The preparation method of polypropylene is as follows: 100 parts of copolymerized polypropylene powder; 0.4 parts of composite antioxidant 3114 / 330; 0.1 part of acid absorbing agent Cast; Granulated. The temperature of each zone of the extruder is 180°C, 185°C, 190°C, 200°C, 210°C, 210°C, the screw speed is 250±50rpm, the granulation screw is vacuumed, and the vacuum degree is 0.3 MPa. The copolymerized polypropylene powder is produced by the fourth generation Ziegler / Natta catalyst, the isotacticity is 95%, the catalyst residue in each kilogram of polypropylene is less than 0.02g, and the composite antioxidant 3114 / 330, 3114 and 330 are both The compound mass ratio is 1.0.

[0036] The components, proportions and performance indicators of the high rigidity, toughness and low odor polypropylene composition described in Examples 1-6 are shown in Table 1.

[0037] The preparation method of the high-rigidity, toughness and low-odor polypropylene composition described in ...

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PUM

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Abstract

The invention belongs to the technical field of high polymer materials, and in particular relates to a polypropylene composition and a preparation method thereof. The polypropylene composition is prepared from the following raw materials in parts by mass: 60-80 parts of impact polypropylene, 10-30 parts of talcum powder, 3-10 parts of a toughening agent, 2-5 parts of white carbon black and 0.2-0.8 part of a composite antioxidant. The preparation method of the polypropylene composition comprises the following steps: firstly, performing uniform dry-mixing on the materials in parts by mass in a high-speed mixer, and performing extrusion pelletization by using an extruder at 180-120 DEG C, wherein the rotation speed of the mixer is 400-450 rpm, and the dry-mixing time is 5-8 minutes. The polypropylene composition provided by the invention is slight in odor, relatively high in rigidity and toughness and simple and feasible in preparation process. The polypropylene composition can be applied to production of automobile parts and household electric appliance components.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a polypropylene composition and a preparation method thereof. Background technique [0002] Polypropylene has the advantages of low density, good heat resistance, high strength, excellent moisture absorption resistance, acid and alkali corrosion resistance, and solubility resistance, and has now developed into the second largest general-purpose plastic besides polyethylene. Modified polypropylene is to further improve and expand the properties of polypropylene by adding various modifiers, so that it can be used in a wider range of applications, such as automobiles, household appliances, daily necessities and other fields. However, polypropylene itself and various additives usually make the prepared composite material have a relatively large odor, so that its environmental protection cannot meet the requirements for use. With the rapid development of various...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/08C08K13/02C08K3/34C08K3/36C08K5/3492C08K5/13
CPCC08L23/14C08K2201/003C08L2201/08C08L23/0815C08K13/02C08K3/34C08K3/36C08K5/34924C08K5/13
Inventor 邹明瑞
Owner FOSHAN RUIJIAN SPORTS EQUIP CO LTD
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