Polybutylene terephthalate, abbreviated as PBT, belongs to the polyester series. It is formed by the polycondensation of 1.4-butanediol (1.4-Butylene glycol) with terephthalic acid (PTA) or dimethyl terephthalate (DMT), and is processed into a milky white, semi-transparent to opaque, crystalline thermoplastic polyester resin.
PBT has high heat resistance, toughness, fatigue resistance, self-lubrication, low friction coefficient, weather resistance, and a low water absorption rate of only 0.1%. It maintains various physical properties (including electrical properties) in humid environments, has electrical insulation, but has high volume resistivity and dielectric loss.
PBT is resistant to hot water, alkalis, acids, and oils, but is easily eroded by halogenated hydrocarbons. It has poor hydrolysis resistance and can crystallize rapidly at low temperatures, with good moldability.
PBT crystallizes quickly, and the most suitable processing method is injection molding. Other methods include extrusion, blow molding, coating, and various secondary processing methods. It needs to be pre-dried before molding, with moisture content reduced to 0.02%.
The three major series of aerogel boards can be widely used in industrial pipelines, thermal networks, petrochemical equipment, new energy vehicles, smelting, kilns, home appliances, construction, transportation, and other fields. Aerogel insulation materials not only have excellent fireproof, thermal insulation, and heat insulation properties but also solve insulation problems that traditional insulation materials cannot address, providing customers with superior fire-resistant insulation materials and a series of supporting fireproof insulation engineering optimization solutions.
In petrochemical pipelines, equipment, storage tanks, furnace bodies, etc., aerogel insulation materials can redefine energy-saving insulation for industrial pipelines and equipment. It features high flexibility, low thermal conductivity, strong hydrophobicity, long service life, and quick cutting and construction, which can bring significant energy-saving and emission-reduction effects to the petrochemical field.
Introduction to building insulation
Building fire prevention and energy-saving insulation
Both fire prevention and insulation have always been pursued in the field of building insulation. Aerogel materials not only meet these requirements but also effectively reduce the thickness of insulation layers, improve the space utilization of buildings, and bring feasibility to safe, low-carbon, and energy-saving buildings.
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