A kind of method that utilizes waste to prepare nano flame retardant coating

Abstract

The invention discloses a method of preparing a nano fire retardant coating by using wastes. The method is characterized by comprising the following technical steps: (1) selecting the following raw materials in percentage by weight: 65% of polystyrene foam, phenolic foam plastic, waste rubber and nitryl fibers, 15% of industrial alcohol, coal tar, acetone and a hydrosolvent, 15% of pigments and fillers, and 5% of a wetting dispersing agent, a defoamer, a delustering agent and a plasticizer assistant; (2) melting and extracting; (3) pre-extracting; (4) dispersing; (5) reconciling and modulating colors; (6) filtering; and (7) packaging. The method provided by the invention is reasonable and concise in process, the process flow is greatly shortened, the raw material of the coating is wide in source, and the method belongs to waste recycle, so that the production cost is lowered. Meanwhile, coatings with various functions are conveniently prepared according to raw material ratio, so that the method is applicable to demand of production process. The inventory rating and proportioning are accurate with less inventory rating, the product quality is ensured, and the yield of enterprises is effectively improved.

Description

technical field [0001] The invention relates to the field of chemical technology, in particular to a method for preparing nano flame-retardant coatings from waste. Background technique [0002] At present, coatings have been widely used in the construction industry, packaging materials, household daily necessities and automobiles and other fields. Paint is a chemical mixture that can firmly cover the surface of objects for protection, decoration, marking and other special purposes. With the continuous expansion of industrialized large-scale production and the continuous improvement of people's living standards, some domestic garbage and industrial waste continue to increase, which has brought serious environmental pollution to the society. Waste and old foam plastics, waste rubber and coal tar have caused serious environmental pollution. Serious "white pollution" and "black pollution" have become a worldwide public hazard, endangering people's quality of life and restrictin...

AI Technical Summary

Problems solved by technology

Although most of the methods for preparing nano-flame-retardant coatings from wastes are simple, the process has great ambiguity, so the produced coatings are highly polluting and the cost of raw materials is also high. For example, the application number is CN200610015827.5 Disclosed is a method for preparing nano-flame-retardant coatings from wastes. Anhydrous coal tar and anhydrous phenol oil are put into a heating kettle, and after stirring, polyvinyl chloride powder, dioctyl phthalate, stearin Barium acid, after stirring, heat, add talcum powder, keep warm, stop heating, cool, stop stirring, the advantages of the present invention: it has weather resistance, elasticity, extensibility, cohesiveness, and the coating film is not brittle or cracked at low temperature It does not flow at high temperature, but there is no well-organized process flow and clear raw material ratio. In this process, only one kind of coating can be produced, which is not suitable for the development of enterprises and the improvement of enterprise benefits.