A kind of multi-layer multifunctional thermal insulation material and preparation method thereof

Abstract

The invention relates to a multi-layer multifunctional thermal insulation material and a preparation method thereof. The multi-layer multifunctional thermal insulation material has two appearance structures: a flat sheet structure or a round tubular structure; from a bottom layer to a surface layer, the flat sheet structure is sequentially provided with a base layer, a transition layer and a surface layer I or a surface layer II; from an inner layer to an outer layer, the round tubular structure is sequentially provided with a base layer, a transition layer and a surface layer I or a surface layer II; the base layer is prepared from a master batch, a foaming agent, an antioxidant, a catalyst, a crosslinking agent, an adsorbent, an emulsifier, a flame retardant and a color master batch, and mainly plays a thermal insulation role; the transition layer plays a role of connecting all the other layers, and has a certain thermal insulation function; the surface layer I has performance of blocking ultraviolet light and short wavelength visible light, so as to achieve an effect of resisting aging; the surface layer II has performance of low wear rate and high sliding friction coefficient, so as to achieve an effect of improving wear-resisting and anti-slide functions. The novel multi-layer multifunctional refrigerant thermal insulation material facilitates environment protection, has an obvious thermal insulation effect, is low-priced, and has an aging-resistant or wear resistant and anti-slide effects, thus enlarging the application scope of the material, and prolonging the service life of the material.

Description

technical field [0001] The invention relates to a multifunctional thermal insulation material, in particular to a multifunctional refrigerant thermal insulation material with a multi-layer structure and a preparation method thereof. Background technique [0002] Thermal insulation materials and their products are important factors affecting energy conservation and environmental protection in buildings and household appliances. Among them, refrigerant thermal insulation materials have a wide range of applications. It uses polymer materials as masterbatches for refrigeration pipe casings for HVAC, air conditioning, refrigerators, etc.; exterior walls, ceilings, and ground pads for architectural decoration. ; Thermal insulation sleeves and backing plates for thermal pipelines, valves and hot wells. Since the 1970s, its production and research and development have received more and more attention at home and abroad. At present, many refrigerant thermal insulation materials obt...

AI Technical Summary

Problems solved by technology

At present, many refrigerant thermal insulation materials obtained only by radiation cross-linking, chemical cross-linking, and electronic cross-linking do not meet the "SGS" standard, which affects their application.

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