Rosin polyester polyol for flame-retardant rigid polyurethane foam plastic and preparation method and application thereof

A rigid polyurethane and foam technology, applied in the chemical modification of natural resins, etc., can solve the problems of corrosiveness, high price and instability of foaming equipment, and achieve good compressive strength, low cost, high thermal stability and resistance. flammable effect
CN101891883AInactive Publication Date: 2010-11-24广西鼎弘树脂有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
广西鼎弘树脂有限公司
Publication Date
2010-11-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses rosin polyester polyol for flame-retardant rigid polyurethane foam plastic and a preparation method and application thereof. The flame-retardant rosin polyester polyol is prepared by performing esterification reaction on rosin binary acid or rosin ternary acid and small-molecular flame-retardant polyol. The prepared flame-retardant rosin polyester polyol and general polyether glycol and an isocyanate compound are foamed to obtain the flame-retardant rosin-based rigid polyurethane foam plastic in the presence of other auxiliary agents. As the flame-retardant rosin polyester polyol contains a rosin phenanthrene ring rigid structure and a certain amount of flame-retardant nitrogen and phosphorus elements, when the flame-retardant rosin polyester polyol is used in the flame-retardant rigid polyurethane foam plastic, the flame-retardant rigid polyurethane foam plastic has higher thermal stability and flame retardancy and high compressive strength, has an oxygen index of 28 to 31 percent and is applicable to building, heat preservation and special occasions.
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Description

Technical field

[0001] The invention relates to a preparation process of a flame-retardant rosin-based rigid polyurethane foam, and mainly relates to the structure and a preparation method of a flame-retardant rosin polyester polyol, and a flame-retardant rosin polyester polyol for preparing rigid polyurethane foam method. Background technique

[0002] Polyurethane foam is currently the best thermal insulation material in the world. Because developed countries such as Europe and the United States attach great importance to building energy conservation, rigid polyurethane foam has been widely used in building roofs, walls, ceilings, floors, doors and windows in these countries. Wait. However, polyurethane foam has a low density and a large specific surface area. Compared with non-foam materials, it is easier to burn, burning and decomposing to produce a lot of toxic smoke. It will burn and decompose when exposed to fire. When burning, it releases a large amount of heat and produ...

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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