Multi-effect synergistic flame-retardant polyol composition

Abstract

The invention relates to a multi-effect synergistic flame-retardant polyol composition, which is prepared from the following components in percentage by mass: 20 to 50 percent of phosphorus-nitrogen polyol, 10 to 20 percent of silicon-boron flame retardant and the balance of polyester polyol, wherein the structure formula of the phosphorus-nitrogen polyol is shown in the specification. The preparation process of the silicon-boron flame retardant comprises the following steps: dispersing diatomite powder in deionized water, uniformly conducting dispersing, adding a proper amount of a surfactant, adding a certain mass of boric acid while stirring, conducting dehydrating and drying at 50-60 DEG C, and conducting calcining to obtain boron-containing diatomite powder. The polyol composition obtained by the invention has an efficient synergistic effect, is a reactive flame retardant, and can directly react with isocyanate in a chemical bonding manner to prepare a flame-retardant polyurethane material; the problem of migration and precipitation of flame-retardant components does not exist; and the polyurethane material has good compatibility and can be used for preparing polyurethane foam, a polyurethane sealant, a thermoplastic polyurethane elastomer and other polyurethane materials with multiple purposes.

Description

technical field [0001] The invention relates to the field of polyurethane synthesis, in particular to a multi-effect synergistic flame-retardant polyol composition. Background technique [0002] Polyester polyol is a chemical intermediate with a wide range of uses, especially as an important component of polyurethane products. In many polyurethane products, a certain flame retardant performance is required, and the flame retardant effect is usually achieved by adding a flame retardant. The flame retardant performance achieved in this way will gradually decrease with time, and some flame retardants Usually, some small molecular liquid substances have poor compatibility with the components in the polyurethane synthesis process, which leads to the release of harmful organic substances from the finished product, which is likely to cause potential harm to the human body. [0003] Therefore, reactive flame retardants used in polyurethane resins have become a research hotspot in r...

AI Technical Summary

Problems solved by technology

Since a single flame retardant often cannot achieve a satisfactory flame retardant effect, people began to mix flame retardants to play a role in enhancing strengths and avoiding weaknesses. This effect is called synergy, but not all flame retardants are consistent. With synergistic effect, the object of the present invention is to find a flame-retardant polyol composition with synergistic effect between phosphorus, nitrogen and silicon

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