Nano-aerogels have the lowest thermal conductivity among known solids. The aerogel felt compounded with this nano-material is a soft, inorganic and environmentally friendly thermal insulation material, which is easy to construct. These special effects make it the best and most beautiful product in the thermal insulation industry.
What materials are commonly used for external wall insulation? What material is used for interior wall insulation? Exterior wall can choose some products with strong weather resistance and stable performance, such as glass wool, rock wool and other inorganic wool. Products with good environmental protection performance and difficult condensation should be selected for internal insulation, such as B 1 grade rubber and plastic insulation materials of Freiger brand.
In recent years, with the comprehensive and compulsory promotion of building energy-saving exterior wall insulation materials in new residential and commercial buildings and even some old houses in China, the flammable problem of organic materials has also been exposed. Flammable external wall insulation materials frequently cause troubles in various places, and major fires that devour life and property follow. Take three famous fires in China as an example. The new building of Beijing CCTV under construction uses polystyrene board (EPS) as external wall insulation material. "1 1" caused by building decoration? In the "15" catastrophic fire, the building of Jiaozhou Road in Shanghai used polyurethane foam as thermal insulation material. Extruded polystyrene board is used as the external wall insulation material of Shenyang Dynasty Wanxin Building. The above three kinds of external wall thermal insulation materials are widely used at present, and their advantages are low one-time cost, convenient construction and good thermal insulation effect. However, they are made of organic materials, and they have the same fatal defect: strong flammability. Even if the flame retardant is added to the raw materials, it has a certain flame retardant effect, but these organic materials are still easy to catch fire, and once the temperature reaches a certain level, it is difficult to put it out, which leads to the rapid spread of the fire throughout the building. Even more deadly, organic thermal insulation materials will produce toxic gases when burned, and people will die if they inhale too much. The fire of Wanxin Mansion in Shenyang Dynasty not only proves once again that flammable external wall insulation materials are the "culprit" and contributed to the fire; It also warns people that organic external wall insulation materials are also easy to ignite, causing major fires in built-in buildings.
Established in 2008, Shijiazhuang Chengzhou Environmental Protection Materials Co., Ltd. is an enterprise specializing in the production and operation of A-class fireproof exterior wall insulation materials in Shijiazhuang. At present, the building area is 200,000 square meters and the building area is 3 million square meters. Our company mainly produces STP ultra-thin vacuum insulation board, self-adjusting phase change insulation mortar, dry powder mortar, bonding mortar and anti-crack mortar, which are mainly used in building decoration industry. Welcome people from all walks of life to call or write to consult our products!
After years of research, development, experiment and demonstration, Shijiazhuang Chengzhou Environmental Protection Materials Co., Ltd. launched a new STP ultra-thin thermal insulation and decoration system on 20 10. The system integrates thermal insulation and exterior wall decoration, and the thermal insulation effect is 3-5 times that of the products on the market at present. The technical system has won six national invention patents, leading internationally, and has been recognized and strongly recommended by national authoritative departments and relevant scientific research institutions. The technical system has been included in the national science and technology support plan (Eleventh Five-Year Development Plan) and the 20 10 science and technology project of the Ministry of Housing and Urban-Rural Development. The company is equipped with the international leading automated production line, forming a standardized and large-scale production capacity.
What materials are commonly used for external wall insulation? Traditional external wall thermal insulation consists of polymer mortar, glass fiber grid cloth, flame-retardant molded polystyrene foam board (EPS) or extruded board (XPS) and other materials, which are bonded on site. The new exterior wall insulation adopts assembly line production, which integrates insulation, waterproof and facing, and can meet the energy-saving demand of current residential construction. Thermal insulation materials are divided into inorganic thermal insulation materials and organic thermal insulation materials.
A. inorganic thermal insulation materials:
① Cement-based foam material: air-tight thermal insulation material with thermal conductivity of 0.042-0.05 1.
② Rock wool board: thermal conductivity is 0.04 1-0.045? Poor heat preservation effect.
③ Ceramic insulation board: thermal conductivity is 0.08-0. 10, which is convenient for construction and durable.
④ Perlite slurry: thermal conductivity is 0.07-0.09, which has poor high-temperature insulation effect and high water absorption.
⑤ Inorganic active wall insulation material: thermal conductivity is 0.045-0.055, which has good insulation effect, high strength, moisture resistance and convenient construction.
B. organic thermal insulation materials:
⑥ Expanded polystyrene board (EPS board): The thermal conductivity is 0.037-0.04 1, which is cheap and the strength is slightly poor.
⑦ Extruded polystyrene board (XPS board): The thermal conductivity is 0.028-0.03, which has good thermal insulation effect, high strength and moisture resistance.
⑧ Rubber powder polystyrene particle thermal insulation slurry: the thermal conductivity is 0.057-0.06, and the thermal insulation effect is not ideal.
Pet-name ruby polyurethane foam material: thermal conductivity 0.025-0.028, good waterproof, good thermal insulation effect and high strength.
Attending phenolic resin composite board: thermal conductivity is 0.029-0.03, which has better thermal insulation effect, high strength and moisture resistance.
There are many kinds of external wall thermal insulation materials, each with different advantages, different construction techniques, different difficulties and costs. Therefore, in the actual construction process, it is necessary to comprehensively consider various factors and comprehensively select appropriate thermal insulation materials. Due to the requirements of the new era, the Construction Committee and other relevant departments put forward new requirements for external wall thermal insulation materials, and need to consider energy conservation and environmental protection of buildings. Therefore, when constructing, try to choose the required external wall insulation materials to ensure the energy-saving and environmental protection requirements of the building.
Exterior wall insulation generally adopts polystyrene particles, anti-crack mortar and grid cloth; If the exterior wall is insulated, polystyrene board can be used.
What is the general insulation material for vending machines? Aluminum foil, tin foil or
Tin foil insulation cotton
What kind of insulation material is commonly used for roofing, polystyrene board or extruded board?
What materials are used for general pipeline insulation? Common materials include rubber-plastic insulation pipe (board), glass wool shell, polyurethane foam and so on.
The thickness varies with the region, pipeline laying method, location and use. Can't generalize, general drawings and design instructions will indicate the insulation material and thickness.
What material is commonly used for air conditioning insulation board? Perlite insulation materials are generally used for roof insulation.
◎ Expanded perlite is a kind of white granular material with honeycomb structure made of perlite ore after preheating and instantaneous high temperature roasting. Its principle is that perlite ore is crushed into ore with a certain particle size, and after preheating and roasting, it is quickly heated (above 1000℃), and the water in the ore is vaporized and expanded in the softened glassy ore to form a porous structure. Nonmetallic mineral products with volume expansion 10-30 times. Perlite can be divided into three forms according to its expansion technology and use: open hole, closed hole and balloon.
2 production process conditions
◎ Raw ore particle size;
◎ Preheating temperature and time;
◎ Expansion temperature and time;
Three main characteristics
◎ Lightweight ◎ Porous ◎ Thermal insulation ◎ Nonflammable.
Sound-absorbing, waterproof, non-toxic and corrosion-resistant.
4 application fields
◎ Building: building roof and wall insulation; Lightweight aggregate of building materials;
◎ Industry: insulation board, sound-absorbing board, partition board, fire-proof board, etc.