Lignin-epoxy resin composite material and preparation method thereof

A technology of epoxy resin and composite material, which is applied in the field of lignin-polymer composite material and its preparation, can solve the problem of low effective utilization rate of lignin, achieve high stiffness and degradable performance, easy processing, excellent heat resistance Effect
CN102585531AInactive Publication Date: 2012-07-18NORTHEAST FORESTRY UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEAST FORESTRY UNIVERSITY
Publication Date
2012-07-18
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses a lignin-epoxy resin composite material and a preparation method thereof, relates to a lignin-polymer composite material and a preparation method thereof, and aims to solve the conventional problem of low effective utilization rate of lignin. The lignin-epoxy resin composite material uses the lignin as a substrate; epoxy resin, a curing agent, a toughening agent, and the like are evenly blended with the lignin; and through the processes of pre-pressing, hot-pressing and curing molding, the lignin-based composite material is obtained. The lignin-epoxy resin composite material disclosed by the invention has the advantages of little water absorption, good mechanical performance, degradability, and the like, is suitable for manufacturing floor boards, wall protection boards, construction formworks, door-window profiles, fences, guardrails, louvers, roof boards, and the like in the construction industry, can be used for manufacturing inner decorative boards of automobile doors, seat backing boards, automobile roof lining, and the like in the automobile industry, and can also be used in the fields of the packaging and transportation industry, the furniture industry, office articles, sports facilities, and the like.
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Description

technical field

[0001] The invention relates to a lignin-polymer composite material and a preparation method thereof. Background technique

[0002] Lignin is the second largest renewable resource next to cellulose in nature, with an annual cost of 5×10 10 It can be regenerated at a speed of t and is an organic raw material with great industrial value. In cellulose-related industries (such as plant hydrolysis and pulp and paper industry), lignin is usually produced in large quantities as a by-product, but so far, more than 95% of the recovery of isolated lignin is concentrated and then burned On the one hand, it causes a great waste of resources, on the other hand, the discharge of lignin-containing industrial wastewater will also cause serious adverse effects on the environment. Effective utilization of lignin is of positive significance to environmental protection and economic development.

[0003] Blending lignin with polymers to prepare new composite materials is one o...

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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