Flame-retardant elastic polyurethane artificial tree bark material and preparation method thereof

Abstract

The invention discloses a flame-retardant elastic polyurethane artificial tree bark material and a preparation method thereof. The artificial tree bark material comprises an A component and an R component, wherein the A component comprises polyether diol, polyether triol, TDI (toluene diisocyanate) and PAPI (polymethylene polyphenyl isocyanate); and the R component comprises a mixed solvent of dimethylbenzene and ethylene glycol monoethyl ether acetate, an organic phosphorus flame retardant, a magnesium hydrate flame retardant, a drier namely rosin, a plasticizer namely polyether diol, a valcanizer namely diamine (known as MOCA), an organic filler namely coumarone resin, a tinting pigment, inorganic fillers namely heavy calcium powder and talcum powder, an ultraviolet absorber and an antioxidant. The prepared material has good flame retardance, tensile strength, rupture strength and workability and excellent weather resistance.

Description

technical field [0001] The invention relates to a simulated tree bark material, in particular to a simulated tree bark material with flame retardancy, environmental protection, elasticity and outstanding performance. Background technique [0002] Since China Telecom started mobile phone business in 1987, the user growth rate has been more than 200%. Since 1994, the number of mobile phone users has exceeded one million, and the number of mobile phone users has almost doubled every year compared with the previous year. On July 17, 1997, the 10 millionth user of my country's mobile phone was born in Nanjing, Jiangsu, which marked that my country's mobile communication has reached a new level. It means that the number of users developed by China Mobile in less than 10 years has exceeded 110 years of development of landline telephones. At present, the growth rate of my country's mobile communication network ranks first in the world, and the total number of mobile users ranks firs...

AI Technical Summary

Problems solved by technology

Later, it was changed to atomic ash. Although the defects of the cement material were overcome, there were still problems such as hard material, easy aging, and the surface must be coated with decorative paint. Later, it was changed to elastic polyurethane injection plastic, and the above performance defects and shortcomings disappeared. However, there are problems of high cost and flammability in forest areas; now polyurethane waterproof coating is used as a substitute, the cost is reduced, and the elasticity and water resistance are relatively satisfactory. However, there are still flammability, slow drying and weather resistance in forest areas gender issues

[0003] In addition, with China's emphasis on resorts, garden landscapes, environmental protection, and buildings in scenic spots, various landscape decorative building materials have gradually become popular, but most landscape building materials still use cement materials or atomic ash as bark materials, cement materials Hard, highly prone to cracking and chalking

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