Molybdenum carbide catalyst as well as preparation method and application thereof

A molybdenum carbide and catalyst technology, applied in the field of polyurethane, can solve the problems of poor thermal insulation of polyurethane, poor biological straw activity, low filling amount, etc., and achieve the effects of good thermal insulation performance, high compressive strength, and optimized electronic structure.
CN111111730AActive Publication Date: 2020-05-08ZHEJIANG NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG NORMAL UNIVERSITY
Publication Date
2020-05-08

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Abstract

The invention belongs to the technical field of polyurethane preparation, and particularly relates to a molybdenum carbide catalyst, a preparation method of the molybdenum carbide catalyst, biologicalpolyol prepared through catalysis of the molybdenum carbide catalyst and polyurethane prepared from the biological polyol. The molybdenum carbide catalyst prepared by the method can be used for simultaneously breaking chemical bonds in cellulose, hemicellulose and lignin in biological straw; the biological straw is converted from a solid state into the biological polyol which is high in reactionactivity and contains hydroxyl and benzene rings; further, the biological polyol is applied to the preparation of the polyurethane; According to the method, a process route for preparing the polyurethane by taking the biological straw as the raw materials is realized, the problems of low straw filling amount and poor polyurethane performance when the polyurethane is prepared by taking the biological straw as the raw material in the prior art are solved, and the prepared polyurethane has the advantages of low heat conductivity coefficient, good heat preservation performance, high compression strength and the like.
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Description

technical field

[0001] The invention belongs to the technical field of polyurethane preparation, and in particular relates to a molybdenum carbide catalyst and a preparation method thereof, biopolyols prepared by the catalyst, and polyurethane prepared from the biopolyols. Background technique

[0002] Corn is one of the three major food crops in my country. The planting area of ​​corn in my country is about 530 million mu, and the annual production of biological straw reaches 260 million tons. However, the energy density of biological straw is low and the oxygen content is high, which leads to low utilization efficiency of combustion and gasification, which directly break the structure of macromolecules in straw and transform them into energy and small molecular gases. The annual economic loss and environmental pollution caused by straw burning and landfilling cannot be underestimated, and it also causes a great waste of the inherent hydrocarbon components in straw. [000...

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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