Nano-size incombustible polyether polyol polymer and its preparing process and application

Abstract

A nano-size (10-200 nm) incombustible polyether polyol polymer (MPP) is prepared through dispersing or locally grafting tripolycyanamine, cyanoguanidine and formaldehyde on high-activity polyether polyol at 40-160 deg.C for 5-16 hr. Said MPP has viscosity lower than 2300 MPa.s / 25 deg.C and density of 1.120-1.126g / ml, and can be used along with high-activity polyether polyol and assistant to prepare high-resilience foam polyurethane plastics.

Description

technical field [0001] The invention belongs to the category of polyurethane synthetic materials, in particular to a nano-scale flame retardant polymer polyether polyol and its preparation method and application. Background technique [0002] Where the main chain of the polymer molecule is composed of an ether chain (-R-O-R'-), the resin whose molecular end group or side group contains hydroxyl group (-OH) is called polyether polyol. Compounds such as oxyalkylene (ethylene oxide, propylene oxide, etc.), tetrahydrofuran, and polyhydroxy compounds are used as initiators, and the resins synthesized by ring-opening homopolymerization and copolymerization are all such products. Polyether polyols used in polyurethane foam are classified according to molecular composition and structure, and mainly include the following four types: [0003] 1. Propylene oxide homopolyether is prepared by ring-opening homopolymerization of various polyhydroxy compounds (such as propylene glycol, eth...

AI Technical Summary

Problems solved by technology

Since melamine is solid, the presence of a large amount of melamine results in high viscosity, coarse particles, and easy sedimentation of the combined material, making it difficult to operate with high-pressure and low-pressure foaming machines.

Moreover, when organohalogenated alkyl phosphate is compounded with other additives, such as water and catalysts, it will cause hydrolysis and destroy the activity of the catalyst.