Method for preparing composite talcum powder filled material of polypropylene

A composite material, polypropylene technology, applied in the field of preparation of talc powder filled polypropylene composite materials, can solve the problems of material toughness reduction, low shrinkage, high heat distortion temperature, etc., to achieve improved modulus and toughness, convenient operation, high performance stable effect
CN101092497AInactive Publication Date: 2007-12-26SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2007-12-26
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

This invention relates to a method for preparing talcum powder-filled polypropylene composite material. The method comprises: adding maleic anhydride-grafted polypropylene, talcum powder, epoxy resin and curing agent to polypropylene resin in an internal mixer, open mill or screw extruder at a certain blending temperature, blending, and curing epoxy resin in situ. The interfacial force between epoxy resin and polypropylene or talcum powder increased, and the mechanical properties of the obtained composite material are obviously improved. Compared with traditional surface treatment of talcum powder with coupling agent, or the addition of compatibilizer, the talcum powder-filled polypropylene composite material in this invention has improved rigidity and toughness. The method has such advantages as simple process, high processability and high adaptability. The talcum powder-filled polypropylene composite material can be used in buildings, automobile fittings and electric appliances.
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Description

technical field

[0001] The invention relates to a preparation method of a polypropylene composite material filled with talc powder, adding polypropylene grafted with maleic anhydride as a compatibilizer, and increasing the interface force between polypropylene and talc powder through dynamic curing of epoxy resin, so that The mechanical properties of composite materials have been significantly improved. The prepared composite material can be used as materials for civil construction, auto parts, household appliances and the like. Background technique

[0002] Polypropylene (PP) filled with inorganic fillers can reduce material costs, improve the mechanical properties and thermal stability of materials, and improve the dimensional stability of products. Due to the lack of polarity of the macromolecular chain of PP, when blended with inorganic fillers, the compatibility is poor, the mutual dispersion is not good, the interface adhesion is low, and the phenomenon of phase separ...

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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