<table id="uuuuu"></table>
  • <table id="uuuuu"><noscript id="uuuuu"></noscript></table>
  • <menu id="uuuuu"></menu>
    <table id="uuuuu"><source id="uuuuu"></source></table>
  • 延程包裝廠歡迎您! 設為首頁 | 收藏本站
    1 2
    您的位置:主頁 > 保溫材料的選擇與應用方法 > 正文


    文章出處:http://www.travelworldfree.com 發表時間:2023/2/15





    In recent years, the variety of insulation materials has been increasing, and the range of options has also been increasing. The diversification of material varieties leads to the diversification of performance indicators. How to choose reasonably,
    It is necessary to understand the relevant performance, advantages and disadvantages of commonly used thermal insulation materials, and comprehensive comparison can make a relatively reasonable choice according to the requirements of use.

    Glass wool products
    The material is currently a more commonly used thermal insulation material, the main properties are: light weight [bulk density or density is small, the weight of each cubic meter is between 1290kg, depending on the use), the thermal conductivity is small, generally between 0.034 (w/mk),
    And it varies with temperature. The material is resistant to high temperature, is a non-combustible material, and the maximum use temperature can reach 300 °C; Non-rotten, anti-aging, insoluble in water and organic solvents, resistant to CO2 and SO2 erosion in the air; However, due to the large water absorption rate of the material,
    Therefore, the waterproof performance is poor. And after the glass wool absorbs water, the insulation effect will be greatly reduced, and even after air drying, it cannot return to the original performance. Therefore, in the occasion of strict insulation requirements, glass wool that has been wet or wet can no longer be used.
    Based on the good comprehensive performance and chemical resistance of glass wool insulation materials, it has been widely used in construction, industrial and air conditioning insulation, fire prevention and sound suppression projects.

    Foamed plastic products
    Foamed plastic products (including polyethylene, polyurethane, polystyrene) have light weight and low density, and the bulk density per m3 is about 2040kg; The thermal conductivity is small, generally between 0.0170.027 (w/mk), depending on the ambient temperature.
    The maximum use temperature of the material is below 100 °C, generally not exceeding 70 °C; Low water absorption, with strong waterproofness. The material is mostly used in sub-zero low-temperature cold preservation projects, such as oxygen production, refrigerator heat insulation, etc. In order to comply with the requirements of the building fire code,
    Manufacturers specialize in the production of extinguishing flame retardant B1 grade foam plastics such as polyethylene, polyethylene insulation material has a fine independent bubble structure, elastic, easy to process, can be arbitrarily cut, easy to fit and low water absorption.

    Rubber and plastic insulation materials, that is, rubber foam materials
    The characteristics of foamed rubber and plastic insulation materials are relatively close to foamed plastic products, light weight, good elasticity, good toughness, small thermal conductivity, good air tightness, water resistance, corrosion resistance, pressure resistance, good workability, suitable for medium temperature between -40 °C-105 °C various pipelines and equipment insulation.
    Rubber foam material should be a kind of insulation material with better quality, and the price of this material product is also relatively expensive.

    <table id="uuuuu"></table>
  • <table id="uuuuu"><noscript id="uuuuu"></noscript></table>
  • <menu id="uuuuu"></menu>
    <table id="uuuuu"><source id="uuuuu"></source></table>