Thermoplastic polyurethane elastomer is also known as thermoplastic polyurethane rubber, abbreviated as TPU
Thermoplastic polyurethane elastomer, also known as thermoplastic polyurethane rubber, TPU for short, is A (AB) N-type block linear polymer, A is a high molecular weight (1000~6000) polyester or polyether, B is a diol containing 2~12 straight chain carbon atoms, AB chain chemical structure is diisocyanate. Thermoplastic polyurethane rubber is cross-linked by intermolecular hydrogen bonds or slight cross-linking between macromolecular chains. With the increase or decrease of temperature, these two cross-linked structures have reversible properties. In the molten state or solution state, the intermolecular force is weakened, and after cooling or solvent volatilization, there is a strong intermolecular force connected together, restoring the performance of the original solid. Typical Tpus such as spandex.
Dongguan Hongzheng Plastic Products Co., LTD., founded in 2005, is located in Tutang Industrial Zone, Changping Town, Dongguan City, Guangdong Province, China, with an independent plant covering an area of more than 5,000 square meters and more than 100 employees. Is a research and development, production, sales in one of the private enterprises, with general taxpayer qualifications. The factory has more than 20 domestic and foreign advanced plastic extrusion production lines, specializing in the production of all kinds of LED lampshade, LED lamp, LED lamp shell, PC lampshade, PMMA lampshade, as well as all kinds of PVC, ABS, PS, PP, PE, TPE, TPR, TPV, TPU and other rubber tube shaped material extrusion.
Specializing in the production of various LED lampshade, LED lamp, LED lamp shell, PC lampshade, PMMA lampshade,
led lighting is a new type of efficient solid light source using LED as light source [1,4]. It is called semiconductor lighting in China and solid-state lighting in the world. Its power consumption is only 1/10 of that of incandescent lamps and its service life is 100 times longer than that of incandescent lamps. It does not contain heavy metal mercury, so it has the characteristics of energy saving, long life, environmental protection, maintenance free and easy control. Therefore, led lighting is recognized as one of the most promising high-tech fields in the 21st century. PC lamp shade led unit area luminous intensity is too high, direct vision is very dazzling, glare, visual discomfort. For this, led lighting is needed
High working pressure: at room temperature 2OC, the pressure is 1.ompa.
Many LED fluorescent lamp manufacturers in the production process, and fluorescent lamp aging in the process of use there will be cracks. Now I will analyze the cause of this crack. For your reference. PC material originally for polymer, its toughness is often good, in the normal range of material characteristics, the proportion of PC molecule cracking is less, that is to say, the cracking phenomenon of PC material is smaller. So why now the PC lampshade will appear to have cracking? The main reason is that the structure of PC molecular chain is damaged and the molecular chain is disconnected. Resulting in product cracking or surface cracks. Factors affecting the structure of molecular chains
ABS pipe is a kind of building material with excellent performance, mainly used in drainage, petrochemical industry pipeline, environmental protection industry, pure water system and so on.