PVC (polyvinyl chloride) foaming aluminum-plastic building template

Abstract

The invention discloses a PVC (polyvinyl chloride) foaming aluminum-plastic building template which is composed of an upper aluminum alloy plate surface layer, a lower aluminum alloy plate surface layer and a middle foaming core layer, wherein the middle foaming core layer comprises the following components in parts by weight: 25-30 parts of SG-5 type PVC resin, 60 parts of PVC waste powder of 20-50 meshes, 10-15 parts of light calcium carbonate of 1,000 meshes, 0.2-0.3 part of AC foaming agent, 0.4-0.5 part of NC foaming agent, 4-5 parts of foaming regulator, 2.5-3.0 parts of composite thermal stabilizer, 0.4-0.5 part of paraffin, 0.2-0.3 part of oxidized polyethlene wax, 0.5-0.6 part of polyethylene wax and 4-5 parts of CPE-135A. The PVC foaming aluminum-plastic building template disclosed by the invention is prepared by extrusion forming with a twin-screw extruder and a foaming mould by taking thermoplastic plastic polyvinyl chloride or waste polyvinyl chloride plastic as a base material and light calcium carbonate as filler and adding various auxiliaries and modifiers, and has the characteristics of smooth surface, high strength, good toughness, high impact resistance and long service life.

Description

technical field [0001] The invention relates to a building formwork, in particular to a PVC foamed aluminum-plastic building formwork. Background technique [0002] Plastic building formwork is the fourth generation formwork for concrete pouring after wood formwork, bamboo plywood, and steel formwork. It is an energy-saving and environmentally friendly product. Plastic formwork technology has also become 10 new technologies in the construction industry vigorously promoted by the Ministry of Housing and Urban-Rural Development (2010 version) one. In recent years, my country's plastic formwork has developed very rapidly. Rigid PVC low-foaming formwork is the mainstream product in my country's plastic formwork market. However, because the strength of PVC low-foaming formwork is worse than that of traditional bamboo and wood plywood, popularization and application are relatively limited. Earth restrictions. Contents of the invention [0003] The object of the present inventio...

AI Technical Summary

Problems solved by technology

In recent years, my country's plastic formwork has developed very rapidly. Rigid PVC low-foaming formwork is the mainstream product in my country's plastic formwork market. However, because the strength of PVC low-foaming formwork is worse than that of traditional bamboo and wood plywood, popularization and application are relatively limited. Earth limit

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