Wood-plastic composite material and preparation method thereof

A technology of wood-plastic composite materials and fiber materials, which is applied in the field of fiber material composition and its preparation, can solve the problems of poor compatibility and weak strength of wood-plastic composite materials, achieve low water expansion rate, improve compatibility, The effect of high impact strength
CN102352116BInactive Publication Date: 2014-08-20BEIJING FORESTRY UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING FORESTRY UNIVERSITY
Publication Date
2014-08-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a wood-plastic composite material and a preparation method thereof. The wood-plastic composite material is prepared from the following raw materials in part by weight: 30 to 80 parts of modified plant fiber, 20 to 70 parts of plastic, 2 to 10 parts of compatilizer, 2 to 10 parts of lubricant, 0.2 to 1.0 part of antioxidant, 5 to 15 parts of filler and 2 to 10 parts of flame retardant. The preparation method comprises the following steps of: preparing the modified plant fiber which is separated from each other and of which the surface is coated with lignin by using wood fiber, namely cotton stalks by a blasting treatment method, compounding the modified plant fiber and the plastic, and extruding to form a finished product material. By the method, the technical problem of low compatibility of wood fiber and thermoplastic plastic is solved, the comprehensive utilization of the wood fiber and the plastic is realized, timber can be replaced, and the added value of agricultural waste, namely the cotton stalks is increased. The prepared wood-plastic composite material has good mechanical properties, and high tensile strength, bending strength and impact strength; and the industrialized production of high-performance products such as constructional engineering materials is realized.
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Description

technical field

[0001] The invention relates to a fiber material composition and a preparation method thereof, in particular to a plant fiber-containing wood-plastic composite material and a preparation method thereof. Background technique

[0002] my country is a country with poor forest resources. Especially when my country's economy enters the stage of rapid development, the demand for wood is increasing day by day. The overuse of forest resources, the sharp decrease of the total forest area and the implementation of natural forest protection projects have intensified the contradiction between wood supply and demand.

[0003] As a residue in the agricultural production process, cotton stalks have an annual output of about 20 million tons, most of which are not used, and most of them are disposed of by burning or natural decay, causing serious environmental pollution and resources. waste. How to deal with cotton stalks has become a subject of research and solution for man...

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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