Multifunctional composite sheet material and process for making same

Abstract

The invention relates to a multifunctional composite sheet material and the production process thereof. The production process comprises the following steps: material preparation, hot mixing, cold mixing, extrusion granulation, extrusion output, lamination, aluminum foil attachment and finishing. The sheet material consists of four layers: aluminum foil, a substrate, fiber glass and polyurethane foam. The production process has the advantages of simple process, low cost and easy construction and maintenance. The product has sound-insulating and heat-insulating effects and good resistance to light radiation and thermal radiation. The multifunctional composite sheet material allows the building to meet the requirements for sound insulation, heat insulation, light radiation resistance and thermal radiation resistance. The multifunctional composite sheet material reflects ultraviolet ray in sunlight, ensures normal temperature difference and normal flow and running of oil and gas in a tube, slows down the light ageing and thermal ageing processes of a pipe network, and prolongs the service life of the equipment. Additionally, the multifunctional composite sheet material can efficiently prevent water-freezing and explosion of a pipe and substantially eliminate the noise during water drainage. The product provides good sound-insulating and heat-insulating effects and good resistanceto light radiation and thermal radiation in refrigerated warehouse in logistical refrigerators and special vehicles and ships.

Description

technical field [0001] The present invention relates to a composite sheet and its production process. More specifically, it relates to a composite sheet suitable for the surface of building facilities, industrial / civil pipeline wrapping and the inner surface of logistics freezer, etc., which can play the role of sound insulation, heat preservation, heat insulation, Composite multifunctional sheet material resistant to light radiation and heat radiation and its manufacturing process. Background technique [0002] At present, with the development of social economy, science and technology and the gradual scarcity of available resources, all countries are taking the development of high-tech products that are environmentally friendly and energy-saving as the leading direction. [0003] First of all, building facilities such as various types of auditoriums, theaters, concert halls, conference halls, national defense and military facilities, and scientific research institutions all...

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Problems solved by technology

[0004] Secondly, in the scorching summer, the pipelines widely used for oil, natural gas and other energy transportation are often irradiated by strong ultraviolet rays from the sun, which makes the temperature inside the pipeline far exceed the normal temperature difference, which seriously affects the normal flow of oil and gas in the pipeline. operation, and greatly accelerated the light aging and thermal aging of the pipe network in harsh natural environments, shortening the service life of pipe network and other equipment

[0005] Furthermore, in the cold and long winter, the water supply and drainage pipes widely used in industrial or civil buildings are attacked by the severe cold, and the water flow in the pipes often freezes, freezes, bursts, etc., which brings troubles to people's production and life; at the same time , people living in modern high-rise buildings, the noise of the downpipe water flow generated when they use the kitchen and bathroom to drain water in the morning, middle and evening makes people living in the middle and low floors complain and suffer a lot, and it cannot make people live in a relatively In the quiet and overflowing home living environment

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