Polypropylene/fiberglass composite material and preparation method thereof

A glass fiber and composite material technology, which is used in the preparation of polypropylene/glass fiber composite materials and the field of polypropylene/glass fiber composite materials, can solve the problem of poor interfacial bonding strength, low hardness, stiffness and notched impact strength, polypropylene Limited performance, etc.
CN102492222AInactive Publication Date: 2012-06-13GUIZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUIZHOU UNIV
Publication Date
2012-06-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a polypropylene / fiberglass composite material and a preparation method thereof. The polypropylene / fiberglass composite material is prepared from the following raw materials in parts by weight: 100 parts of polypropylene, 15-50 parts of fiberglass, 5-15 parts of maleic anhydride grafted polypropylene, 0.2-0.5 part of peroxide initiator and 0.5-2 parts of epoxy resin. The preparation method of the polypropylene / fiberglass composite material comprises the steps of: uniformly mixing weighed polypropylene, maleic anhydride grafted polypropylene and the peroxide initiator according to the ratios, adding to the upstream feeding port of a screw extruder at the temperature of 160-230 DEG C and mixing; synchronously carrying out epoxy resin surface coating treatment on the fiberglass, weighing the fiberglass before and after coating, calculating the addition amount of epoxy resin according to the weight difference of the fiberglass before and after coating, introducing to the downstream fiberglass adding port of the screw extruder, and by virtue of the shearing action of the screw extruder, shearing the fiberglass into about 0.2-0.5 mm and uniformly dispersing the fiberglass in a base material; and extruding, drawing and granulating. The material is good in strength, rigidity and impact ductility, simple in process, low in cost and high in production efficiency.
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Description

technical field

[0001] The present invention relates to the field of material technology, specifically to a polypropylene / glass fiber composite material, and also to a preparation method of the polypropylene / glass fiber composite material.

[0002] Background technique

[0003] Polypropylene is a nonpolar general-purpose thermoplastic with good processing properties, good comprehensive mechanical properties and relatively low price, but its hardness, stiffness and notched impact strength are relatively low, which limits its application in many occasions . Fiber reinforcement is usually an effective means of strengthening and stiffening polymer materials. Due to its high strength and low price, glass fibers are widely used in the preparation of polymer composite materials. One of the keys to improving material performance is to use The interface between the matrix material and the fiber produces good bonding. Polypropylene is a widely used thermoplastic polymer material. Al...

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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