Preparation method of borate modified phenolic foam material

A phenolic foam material and a borate ester technology, applied in the material field, can solve the problems of reduced flame retardant and fireproof performance of phenolic foam, reduced powder drop rate and the like, and achieve the effects of good flame retardant performance, reduced powder drop rate and simple process
CN103289305AInactive Publication Date: 2013-09-11TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2013-09-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of materials, and relates to a preparation method of borate modified phenolic foam material. The borate is prepared by esterification reaction of boric acid and polyethylene glycol under certain temperature. The preparation method of the borate modified phenolic foam material comprises the following steps of: firstly, weighing 100 mass parts of A-stage phenolic resin, then, respectively adding 2-14 mass parts of borate, 3-6 mass parts of surface active agent, 8-11 mass parts of curing agent and 6-14 parts of foaming agent, stirring and mixing evenly, pouring the mixture into a die, closing the die, foaming for 30-60min under 70-90 DEG C, and sequentially obtaining the borate modified phenolic foam. The phenolic foam material is high in flame retardant efficiency, low in powdery rate and low in smoke development, and generates no toxic and corrosive gases.
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Description

technical field

[0001] The invention belongs to the technical field of materials, and in particular relates to a preparation method of a borate-modified phenolic foam material. Background technique

[0002] Polymer foam materials are widely used as thermal insulation materials for buildings due to their light weight, low cost and low thermal conductivity. At present, polystyrene foam and polyurethane foam are widely used in the market, but their heat resistance is poor, flammable, and there is a fire hazard. Phenolic foam has become a promising foam material because of its excellent flame retardancy, heat resistance, and low flame toxicity. However, due to the structural characteristics of phenolic resin, phenolic foam products are brittle, hard and easy to powder, which seriously affects the service life of phenolic foam and limits the application field of phenolic foam.

[0003] In view of the shortcomings of phenolic resin and its foam materials, scientific and technolo...

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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