A-level fire-protection energy-saving rubber-plastic compound building insulation material and preparation method thereof

Abstract

A preparation method for A-level fire-protection energy-saving rubber-plastic thermal-insulating compound foam comprises the following steps: adding polypropylene powder resin, methyl vinyl base silicone rubber, ceramic powder, a fire retardant, glass fiber powder, an antioxidant, white carbon black and polyethylene wax in a high-speed mixer for kneading at a normal temperature, discharging the kneaded materials to an internal mixer so as to obtain material groups through internal mixing, discharging the material groups to a single-screw extrusion pelletizer so as to obtain a basic material A through melting, plasticizing and granulation; adding low-density polyethylene resin in a high mixing machine, then adding an AC blowing agent, talc powder, a lubricating agent and zinc stearate for kneading at the normal temperature, and then discharging the kneaded materials into a single-screw extruder so as to obtain a foaming masterbatch B through granulation; adding the basic material A, the foaming masterbatch B and the polyethylene wax into the high-speed mixer for kneading at the normal temperature, and then discharging the kneaded materials into the single-screw extruder so as to obtain sheets through extruding; carrying out irradiation crosslinking and foaming; grooving on the surface of the prepared foam; and embedding fire-protection filler in the grooves of the foam, immersing in a fire retardant solution and baking so as to obtain the compound building foam.

Description

technical field [0001] The invention relates to a preparation method of A-level fireproof, energy-saving and heat-preserving rubber-plastic composite building foam. Through the use of a special formula system, the production process makes the combustion performance of the product reach Class A, with high thermal insulation performance, and the thermal conductivity is less than 0.02 . The invention prepares an organic macromolecule composite foaming material, which is mainly used in external thermal insulation projects of building exterior walls. Background technique [0002] At present, the energy consumption of residential buildings accounts for 32% of the national energy consumption. Nearly 40 billion square meters of buildings in my country are basically high-energy-consuming buildings, and the heating energy consumption per unit area is equivalent to 2-3 times that of developed countries with similar climate conditions. At present, nearly 2 billion square meters of n...

AI Technical Summary

Problems solved by technology

[0005]The purpose of the present invention is to overcome the low thermal insulation efficiency and heavy weight of inorganic thermal insulation materials, the flame retardancy of organic thermal insulation materials is not up to standard, not environmentally friendly, the amount of combustion smoke is large, and the release of Poisonous and harmful gas, low thermal insulation effect and other disadvantages, provide a cross-linked polymer foam composite material with good thermal insulation effect, meet A-class flame retardant requirements, environmental protection, non-toxic and tasteless, and its preparation method