Flame-resistant and environment-friendly expanded plastic and preparation method thereof

Abstract

The invention discloses flame-resistant and environment-friendly expanded plastic and a preparation method thereof. The flame-resistant and environment-friendly expanded plastic is prepared from the following raw materials: a PPA copolymer, polycaprolactone PCL, plasticized starch, a halogen-free flame retardant, plant powder, a cyanobacteria fiber, sorbitol, a foaming agent ADC, sodium lactate, sodium citrate, ammonium bicarbonate, zinc oxide, diisononyl phthalate DINP, 2-ethylhexyl epoxystearate, a titanate coupling agent NDZ-TTS, nano-montmorillonite, blanc fixe, mica powder and an antioxidant BHT, wherein the PPA copolymer is obtained by reacting 6-aminocaproic acid and gamma-aminobutyric acid at the molar ratio of (5-10) to (0.5-4). According to the flame-resistant and environment-friendly expanded plastic disclosed by the invention, carbon dioxide and water can be completely degraded under the action of light / microorganisms; environmental pollution is avoided; and the flame-resistant and environment-friendly expanded plastic has the advantages of excellent flame retardant property, high tensile strength and high compression resistance.

Description

technical field [0001] The invention relates to the technical field of foaming materials, in particular to a flame-retardant and environment-friendly foaming plastic and a preparation method thereof. Background technique [0002] Foamed plastic is obtained by foaming plastic. Foam molding is the process of creating a microcellular structure in plastics. Almost all thermosetting and thermoplastic plastics can be made into foam plastics. Commonly used resins are polystyrene, polyurethane, polyvinyl chloride, polyethylene, urea-formaldehyde, phenolic and so on. At present, foamed plastics have been widely used in automobiles, household appliances, ships, air conditioners and mechanical products due to their good performance. [0003] Although there are many kinds of foamed plastics, they are widely used. But traditional foam materials, such as polyurethane (PU), expandable polystyrene (EPS) and so on. Among them, the PU foam material has isocyanate residues harmful to the h...

AI Technical Summary

Problems solved by technology

In addition, their biggest common weakness is that after use, these foamed plastics cannot be photodegraded, thermally degraded, or decomposed by microorganisms in nature; Recycling, resulting in the long-term existence of its waste in the natural environment, becoming a serious white pollution

[0004] In addition, it is an effective method to improve the flame retardant properties of foamed materials by adding flame retardants, but the flame retardant materials on the market are generally halogenated flame retardant elastomers containing chlorine and bromine. Combustible elastomers will produce a large amount of toxic gas when they burn, and there are great hidden dangers in the process of use, and the EU ROSH directive clearly excludes halogens; high-filled elastomers often do not work well due to their large amount of inorganic filling. It is completely compatible with the material itself, which makes the mechanical properties of the material very poor and the precipitation problem is serious