When plastic products are used as building envelope materials, properties such as weight, statics, thermal and acoustic insulation, weathering, optical properties, fire resistance, mechanical stress, chemical resistance, and temperature range need to be considered. These parameters are very important for a functional and technically sound building envelope that meets the basic enclosure requirements. Lightweight, weather-resistant, corrosion-resistant, with a certain material strength and normal use of the temperature range, to ensure that the plastic products can be installed and long-lasting use; heat insulation, sound insulation, good optical properties, to ensure the comfort of the building interior; a certain level of fire rating and impact strength, to ensure the safety of the building in the event of emergencies. In addition to these basic properties, plastics have plasticity, flexibility and controllable transparency that are difficult to be compared with other materials, which can create unique shapes and translucent spatial atmosphere, thus becoming a favourite material for some architects.
Pada a waktu kapan semua orang are advokasi hijau energi penghematan , the hemat energi alam dari bangunan adalah juga terutama penting. The energi konsumsi dari bangunan terutama tergantung pada the the termal isolasi isolasi kinerja dari dari eksternal dinding, the better the termal isolasi efek dari eksternal dinding dari bangunan, the lower the energi konsumsi dari bangunan. Some data show that the energy loss brought about by heat transfer from the external wall of a building accounts for 48% of the total energy loss of the entire external enclosure structure. Therefore, a variety of thermal insulation, environmental protection and energy saving, lightweight building materials have been widely promoted and applied in the building design of internal and external walls.
According to the different thermal insulation technology programme, thermal insulation materials are divided into internal thermal insulation materials and external thermal insulation materials, which are used in large quantities in construction projects, such as mineral wool, expanded perlite, foam, and so on. Mineral wool has good thermal insulation properties, high temperature resistance, vibration absorption and sound insulation, but high water absorption rate, not moisture-proof, lack of strength, and easy to collapse in the construction process. Foreign countries in the 1950s used in large quantities, with the continuous development of building materials, gradually replaced by other new materials. Expanded perlite is perlite, turquoise and obsidian as the main raw materials, made after a certain process, low thermal conductivity, high temperature resistance, fragile, poor impact resistance, mainly used for internal insulation filler materials. For example, in the wall construction of a large number of hollow brick structure, in the hollow part filled with expanded perlite, play a role in heat insulation, energy saving and heat preservation. Plastic foam insulation material is with the development of chemical process, the development of a new type of building materials, mainly polyethylene foam and polyurethane foam two categories. Plastic foam has excellent thermal insulation and heat preservation performance, good waterproof performance, high flame retardant properties. Among them, polystyrene foam is one of the most commonly used thermal insulation materials, with good thermal insulation performance, light weight, sound absorption and other characteristics, especially suitable for insulation in cold regions.
Dalam penambahan% 2c yang lain utama tren dalam pengembangan dari plastik dinding adalah juga datang diam-diam. Pada sekarang% 2c domestik konstruksi industri adalah berkembang dengan cepat% 2c skala dari kota adalah adalah berkembang , ada ada banyak proyek di bawah konstruksi , itu fleksibilitas dari proyek is penting. Dengan pengembangan dari mekatronik peralatan, 3D pencetakan teknologi adalah juga menjadi lebih matang. The use of 3D printing technology, based on its flexibility, can be used in a production of a variety of plastic insulation materials, can take into account the advantages of the wall insulation and external insulation technology. With the further maturity of the technology and the change of people's concepts, pure thermal insulation and energy-saving buildings based on 3D printing will be widely used.
