Inorganic whisper reinforced polyolefin composite material in-situ filled polymerization preparing method

A composite material and inorganic whisker technology, which is applied in the field of in-situ filling and polymerization preparation of inorganic whisker-reinforced polyolefin composite materials, and achieves the effects of remarkable tensile properties, improved mechanical properties and smooth surface.
CN1296422CInactive Publication Date: 2007-01-24INST OF CHEM CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF CHEM CHINESE ACAD OF SCI
Publication Date
2007-01-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a kind of insitu filling polymerization-manufacturing method of inorganic whisker intensification polyolefin composite material. Load olefinic polymerization catalyst in the surface of inorganic whisker with preliminary stirring-dispersing treatment, and then take alkene monomer polymerization in its surface in order to get polyolefin / whisker composite material. The composite material is composed with 3-80% inorganic mineral whisker and 20-97% polyolefin polymer. The manufacturing method in the invention is convenient. The composite material manufactured by the method has high filling extent of whisker, retentive slenderness ratio of whisker, and also the whisker has well distribution in matrix polymer and fine adhesion with matrix interface, so that it can give full play to intensification characteristic of whisker, in order to get polyolefin / inorganic whisker composite material with the advantages such as easiness to formation and processing, fine cleanliness of product, and excellent mechanical property. Plastics matrix can be manufactured into polyolefin from low molecular weight, middle molecular weight, and high molecular weight to superhigh molecular weight, such as polypropylene or polythene. The material acquired can be used not only as structural material by direct injection formation, but also as masterbatch after having crossblend with commercial polyolefine.
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Description

technical field

[0001] The invention relates to a preparation method of polyolefin composite material, in particular to a preparation method of in-situ filling polymerization of inorganic whisker reinforced polyolefin composite material. Background technique

[0002] Thermoplastic polymer composites have a wide variety of uses. The traditional preparation method is to prepare thermoplastic polymer composites by melt blending. The disadvantage of this method is that the dispersion of the filler in the matrix polymer is not uniform enough, especially for fine-sized fillers. In addition, the interfacial bonding performance between the filler and the matrix polymer surface is not good enough, which affects the improvement of the mechanical properties of this type of material. By improving the mixing effect, or surface treatment of fillers, such as using coupling agents or surface coating (also known as microencapsulation), the mechanical properties of composite materials can b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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