A preparation method of cross-linked modified straw fiber/pp wood-plastic composite material and the resulting product

The technology of wood-plastic composite material and straw fiber is applied in the field of preparation of PP wood-plastic composite material, which can solve problems such as poor environmental protection and water pollution, and achieve the effects of good environmental protection, good application prospect and low price.
CN108727703BActive Publication Date: 2020-08-11UNIV OF JINAN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF JINAN
Publication Date
2020-08-11

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Abstract

The invention discloses a preparation method of a crosslinking modified straw fiber / PP (polypropylene) wood-plastic composite material and an obtained product. The preparation method comprises the following steps: modifying straws serving as a raw material by adopting chitosan and KH560, then uniformly mixing the modified straw fiber with PP, a lubricating agent and an antioxidant, and extruding and molding the mixture to obtain a product. According to the preparation method disclosed by the invention, the straw fiber is subjected to crosslinking pretreatment, so that the shortcomings of easyauto-aggregation of the straw fiber and low compatibility with a polymer matrix are overcome, the compatibility of the straw fiber and the PP matrix is improved, and the interface performance of the straw fiber and the PP is improved, and then the adding amount of the straw fiber can be up to 40 percent; the recycling utilization rate of the straw fiber is greatly increased; a new way is found forthe application of the straw fiber crop in the field of wood-plastic composite materials.
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Description

technical field

[0001] The present invention relates to a method for preparing a straw fiber reinforced PP composite material and the product obtained, in particular to a method for preparing a cross-linked modified straw fiber reinforced PP wood-plastic composite material and the product obtained, belonging to the technical field of wood-plastic composite materials . Background technique

[0002] Wood-plastic board is a new type of composite material that has been booming at home and abroad in recent years. It mainly uses thermoplastics such as polyethylene, polypropylene and polyvinyl chloride and a certain proportion of wood fiber as the main raw materials, and then extruded, molded, Plates or profiles produced by injection molding and other processing techniques. Wood-plastic panels are mainly used in building materials, furniture, logistics packaging and other industries. However, the supply of wood resources in our country is in short supply, so looking for a wood su...

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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