Preparation method of melamine-formaldehyde resin foam

A technology of formaldehyde resin and melamine, which is applied in the field of microwave foaming, can solve the problems of high foam brittleness and easy powder drop, and achieve the effect of low brittleness, low powder drop, and high tensile tear strength
CN106167553AInactive Publication Date: 2016-11-30郑州峰泰纳米材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
郑州峰泰纳米材料有限公司
Publication Date
2016-11-30
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses a preparation method of melamine-formaldehyde resin foam, and belongs to the technical field of microwave foaming. The method comprises the following steps: taking 120-180 parts by weight of a melamine-formaldehyde resin; adding 5-12 parts by weight of a foaming agent, 3-6 parts by weight of an emulsifier, 3-6 parts by weight of a stabilizing agent, and 2-5 parts by weight of a curing agent in sequence, performing mixing and uniform stirring, and putting the obtained product in a microwave oven for foaming; and putting the obtained foam in an oven for curing for 2 h, wherein the temperature of the oven is 180-250 DEG C, and performing cutting molding. The melamine-formaldehyde resin foam is small in brittleness, not prone to shred particles, and high in tensile and tearing strength. The problem existing in the prior art is effectively solved, and the melamine-formaldehyde resin foam in excellent in mechanical property, flame retardance and sound attenuation.
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Description

technical field

[0001] The invention relates to the technical field of microwave foaming, in particular to a preparation method of melamine-formaldehyde resin foam. Background technique

[0002] Melamine-formaldehyde resin, also known as melamine-formaldehyde resin, is a polymer obtained by the reaction of melamine and formaldehyde. A cross-linking reaction occurs during processing and molding, and the product is an infusible thermosetting resin. It is customary to call it amino resin together with urea-formaldehyde resin.

[0003] Melamine foam is a kind of flame retardant foam plastic made by special foaming process based on melamine formaldehyde resin. An is light in texture, has excellent flame retardancy, heat insulation, thermal stability, sound absorption and noise reduction, safety and sanitation and good secondary processability, and can be widely used in construction, machinery, chemical industry, transportation and other fields. The curing of melamine formaldeh...

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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