Production line of nylon thermoplastic elastomer high speed breathable film
DATE：2021/6/9 8:46:02 / READ： / SOURCE：This station
Production line of nylon thermoplastic elastomer high speed breathable film
Thermoplastic pipe elastomer (TPE) is one of the fastest-growing materials in the past 20 years. All kinds of TPE, such as SBC, TPO, TPU, TPEE and TPV, have been developed vigorously. Thermoplastic polyamide elastomer (tpae) is a new type of tpae which is widely used. The first tpae product was developed by Hughes in Germany. Like polyurethane thermoplastic elastomer and polyether ester thermoplastic elastomer, polyamine thermoplastic elastomer belongs to segmented block copolymer. High speed breathable film production line www.handern.comThere are many kinds of tpae, which are generally divided into PA6, PA66 and PA12 according to the types of polyamides forming the hard segment. Among the commercial tpaes, PA12 is the most common. It has excellent corrosion resistance and good processability, and is often used to replace silicone rubber and fluororubber. As the representative of tpae, it is positioned as a high-grade and high price product together with the newly developed tpae of various special grades. In fact, middle and low-grade tpae also has great development potential. For example, although PA6 tpae is difficult to synthesize, its comprehensive performance is excellent, its price is lower than TPU, its processability is as good as TPEE, and it has transparency. Therefore, it is a product with the advantages of TPU and TPEE. PA6 tpae has attracted the attention of many companies and researchers, and many companies have applied for their patent technology. High speed breathable film production line www.handern.com
According to the different raw materials for the synthesis of polyamide thermoplastic elastomer, the synthesis methods can be divided into two methods: binary acid method and isocyanate method
The synthetic methods are different with different composition of strand and soft segment. Pea, EEA and polyamines are used in commercial tpae, such as carboxyl terminated polyester or polyether. PA12 series is the most obvious, it has excellent corrosion resistance and good processability. For example, PA6 series tpae has excellent comprehensive performance, lower price than TPU, and processing performance is as good as TPEE. And it's transparent. Therefore, it is a product with the advantages of TPU and TPEE. PA6 tpae has attracted the attention of many companies and researchers, and many companies have applied for patents from their subsidiaries
Technology. High speed breathable film production line www.handern.com
According to the different raw materials needed for the synthesis of polyamide thermoplastic elastomer, the synthesis methods can be divided into binary acid method and isocyanate method. According to the different composition of hard segment and soft segment in tpae, the synthesis methods are different. Pea, EEA and PCEA generally react with aromatic diisocyanate and aliphatic dicarboxylic acid to form polyamide block, with carboxyl terminated poly (or polyether) as soft segment. Polyether can be selected as the soft segment because semi aromatic amides do not undergo cool amide exchange reaction under synthesis conditions and processing, but aliphatic amides will undergo ester amide exchange reaction, resulting in random block. Therefore, polyester can not be selected as the soft segment when aliphatic amides are used as hard segments. High speed breathable film production line www.handern.com
Thermoplastic polyamide elastomer is one of the latest varieties of TPE. Its excellent properties make it increasingly widely used in various fields. It has the characteristics of high temperature, good heat aging resistance and chemical resistance. Therefore, it is expected to fill the gap between TPU and organic shoes. Thermoplastic energy dispersive elastomer can be used in hose, wire, cable, automobile, electrical appliances and other industries. It can also be used as hot melt adhesive, powder coating of metal and impact modifier of thermoplastic engineering plastics. It has great potential market in automobile industry, high temperature resistant insulation sheath of wire and cable. In the sports goods, sealing materials, electrical components, auto parts, pipe, sheet, sheath and elastic fiber applications are gradually developed. In addition, it can also be used in some special fields, such as PA6 / PCL tpae has biodegradability, can be used as biodegradable materials, PA6 / PEG tpae has water solubility, can be used in oil exploration and manufacturing of gas permeable products. High speed breathable film production line www.handern.com
Author：admin