Rigid polyurethane foam plastic with constant temperature function and preparation method thereof

A technology of rigid polyurethane and foam plastics, applied in the field of foam plastics, can solve the problems of toughness, tensile and shear strength, and thermal insulation performance degradation, affecting the mechanical strength and quality stability of foam plastics, high raw material costs, transportation and installation costs, etc. , to achieve the effect of fast expansion speed, prolonging the anti-flammability time and high expansion ratio
CN112592453AInactive Publication Date: 2021-04-02漳州普瑞邦节能科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
漳州普瑞邦节能科技有限公司
Publication Date
2021-04-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses rigid polyurethane foam plastic with a constant temperature function. The rigid polyurethane foam plastic is prepared from the following components in parts by weight: 70-90 parts of polyisocyanate, 50-80 parts by weight of a polyol, 4-10 parts by weight of a foaming agent, 0.5-1 part by weight of a catalyst, 1-5 parts by weight of an opening agent, 1-2 parts by weight of afoam stabilizer, 1-2 parts by weight of a cross-linking agent, 1-3 parts by weight of an outer foaming agent, 5-10 parts by weight of a phase change heat storage material, and 3-7 parts by weight ofexpanded graphite. According to the rigid polyurethane foam plastic and the preparation method thereof, the flame retardant property of the rigid polyurethane foam plastic can be remarkably improved,the rigid polyurethane foam plastic still has good mechanical properties at low density, meanwhile, the rigid polyurethane foam plastic has heat preservation and temperature adjustment functions, andthe usability of the rigid polyurethane foam plastic in the field of building materials is greatly improved.
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Description

technical field

[0001] The invention relates to the technical field of foamed plastics, in particular to rigid polyurethane foamed plastics with constant temperature function and a preparation method thereof. Background technique

[0002] Rigid polyurethane foam (RPUF) is a structural material with excellent thermal insulation performance, which can withstand a certain load without obvious deformation. It also has low density, high specific strength, good dimensional stability, high temperature resistance and It has many advantages such as good adhesion with other substrates. Therefore, polyurethane rigid foam has been developed rapidly and has been widely used in various fields of the national economy, and has become one of the indispensable polymer materials. In foreign countries, polyurethane rigid foam is mainly used in the field of building insulation. In China, rigid polyurethane foam is mainly used in insulation fields such as refrigerators, freezers and pipes, and ...

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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