PPA overview
PPA introduction
Long-term use in the environment above 150 ℃ nylon engineering plastics known as high-temperature nylon PPA. Has achieved industrial production of high-temperature nylon mainly PA46, PA6T, PA9T, PA10T, MXD6 and so on.
PPA material compared to ordinary nylon material has a higher melting point and better mechanical properties, the main reason is due to PPA material polyamide chain added to the aromatic ring, aromatic ring reduces the presence of the molecular chain can be rotated Of the single bond increases the bond energy, the rigidity of the molecular chain increases, the hydrogen bonds are easily formed between the larger rigid molecular chains, so that the activity of the whole molecular chain is decreased, the thermal kinetic performance of the molecular chains is decreased, Thermal performance will be significantly improved.
Material characteristics
development path
PPA application Electrical and electronic fields
Automotive industry
The main products and global suppliers PA46, PA4T
PA46, PA4T supplier
DSM pioneered the development and patent protection of the PA46. In 1990, DSM took the lead in industrializing the PA46 and has led the global high-temperature nylon market with a much higher market share than other high-temperature nylon.
Butylenediamine is the key raw material for the synthesis of PA46, and DSM is the only company in the world that has the industrialization solution of butanediamine. With this technical advantage, DSM introduced its new nylon PA4T in 2008, which is mainly used in electrical and electronic applications such as CPU socket, High temperature spool and so on.
PA6T
PA6T is a high-temperature nylon developed by Mitsui Chemicals, Japan, polycondensation of hexamethylenediamine and terephthalic acid. The pure PA6T has a melting point up to 370 ° C. At this temperature, the nylon has been degraded and thermoplastic Molding, so the market circulation of PA6T are after copolymerization with other monomers to reduce the melting point of the copolymer or composite.
PA6T supplier
DuPont introduced the Zytel HTN high-performance polyamide resin to the market in 1994, and Zytel HTN has improved the cost and productivity of many products such as wire wire connectors, automotive structural components, automotive engine cooling, ventilation and fuel system components. Applications are being developed for pipe, heating and chemical treatment systems.
As the earliest Mitsui Chemicals company to develop PA6T high-temperature nylon series products, its main products ARLEN A series and ARLEN C series products have very high temperature resistance, dimensional stability and chemical resistance.
ARLEN series of products because of its low water absorption, can be applied to the field of electronic connectors, SMT over, AELEN has a good solder reflow temperature; and electronic connectors usually need to insert the terminal, the mechanical properties have higher requirements, The ARLEN series of products is well able to meet the above requirements.
Solvay Corporation commercialized Amodel products in 1991 with a continuous use temperature of 170 ° C and a heat distortion temperature of 280 ° C, making it well used in automobiles, kitchenware, appliances, various thin-walled electronics and electrical components.
Grivory resin of Far East EMS Company has low hygroscopicity and high barrier property; it has high strength and can replace part of metal materials; its high temperature property enables it to keep its rigidity and strength unchanged at 120 ℃, Can be used in the production of electronic components and automotive engine covers.
BASF introduced the UltramidT series of PA6 / 6T-based polyamide molding compounds with excellent mechanical properties and electrical properties, low water absorption due to their good properties, these materials have become almost all of the many fields of engineering Parts and machine parts (such as high-quality electrical insulation materials) and many special applications indispensable materials.
PANT, developed by Jiangmen Dezhongtai Engineering Plastics Technology Co., Ltd., was successfully developed in 2013 and mass production began. The first area the company started was plumbing and sanitary ware. Just in line with the general trend of plastic-substituting steel in this country, High-temperature nylon to replace copper to plumbing sanitary ware market. After more than three years of hard work, its bathroom plumbing has made the majority of customer recognition.
PA9T
PA9T supplier
PA9T is a high-temperature nylon developed by Japan's Kuraray Co., Ltd., which is a kind of high-temperature nylon polymerized from nonamethylenediamine and terephthalic acid. Its glass transition temperature is as high as 125 ℃ and its melting point is 308 ℃. Its water absorption is only 0.17% Genestar has better toughness than PA46 at high temperature and has higher chemical resistance, oil resistance and hydrolysis resistance than PA6T, especially soldering temperature with heat resistance above 260 ℃. Lead solder to adapt to the material.
PA10T
PA10T supplier
PA10T by China's golden hair technology started in 2008 industrialized production with independent intellectual property rights of high temperature nylon products, and other short-chain high temperature nylon such as PA46, PA4T, PA6T, PA6I, MXD6 compared PA10T has a longer diamine flexibility The long chain makes the macromolecule have a certain degree of flexibility so that it has higher crystallization rate and crystallinity and is suitable for rapid prototyping and manufacturing of small electronic components such as LED reflecting support, connector, etc. The chemical properties of PA10T, Water absorption, temperature resistance and processing properties are more balanced, and the water absorption is particularly small, the overall performance is quite superior, the project has broad prospects for application.
MXD6
MXD6 is synthesized from m-xylylenediamine and adipic acid and has excellent enlightening barrier and thermal stability, high strength and rigidity over a wide temperature range, high heat distortion temperature, low thermal expansion coefficient, low water absorption, Dimensional stability. Mitsubishi Gas Chemical Company and Dongyang Textile Company blends or co-extrudes it with other thermoplastic materials such as PET, PA6, PA66, polyolefin, PC, ABS, etc. to make composite sheets. The hollow containers have excellent barrier properties and resistance Heat, and in the cold, hot or humid ring is not easy to deformation, can be used for the production of drugs, alcohol, food and other packaging materials with high barrier requirements.
MXD6 supplier
Mitsubishi Gas Chemical Company in 1986 developed under the Reny brand products, including MXD6 as its main component, the use of glass fiber reinforced or glass fiber, mica, calcium carbonate composite enhanced with excellent mechanical properties and thermal properties, the main Used to replace metal and other engineering plastics as automotive structural materials, such as automotive shell, bodywork, girders and chassis and other components.
Global PPA production
From 2010 to 2015, the global production of high temperature resistant nylon will increase at a rate of 6.6% per annum. It is estimated that the annual output of high temperature resistant nylon in the world will reach 154,000 tons by 2020.
PPA market price
Part of the price of high temperature nylon
The price of high-temperature nylon is 2-3 times that of ordinary nylon, and the profit margin is larger. The main reason is that the mainstream PPA products are mainly controlled by a few international giants, and the market demand is large with less competitive pressure. The suppliers have Strong bargaining power while the manufacturer due to the performance of traditional engineering materials can not meet the high temperature requirements of certain products, the use of special engineering plastics will lead to high production costs, balanced consideration, high temperature nylon has become the most cost-effective solution Program, so high temperature nylon has great market competitiveness.
Domestic PPA industry status quo At present, there are still a few enterprises that have the capability of producing high temperature nylon products, and the core technologies are mainly still in the hands of foreign chemical giants such as Dupont, DSM, BASF, etc. Our high temperature resistant nylon started relatively late but industrialized due to various objective reasons Fewer enterprises, but with the development of the market, more and more domestic enterprises began to turn their attention to PPA field.
Since 2000, our company has started research on PA6T, PA10T, PA12T and other high temperature nylon, and at the first breakthrough in China, successfully developed HPN series of products, mainly used in the field of automotive and electronic appliances.
Blonde Technology started industrialized production of high temperature nylon products in 2008. Based on the basic national conditions of our country, Blonde Technology developed PA10T products with excellent performance by polycondensation polymerization of terephthalic acid with castor oil as the raw material for the production of sunflower diamine. The market has won a good reputation and recognition. Blonde Technology and EMS companies in PA10T patent on the formation of a fierce positive confrontation, does not fall .Financial technology for cutting-edge technology continue to study the research attitude and actively defend the behavior of independent intellectual property rights is Related domestic enterprises to learn from example.
In addition Jiangmen Dezhong and Zhejiang Xinhecheng also have high temperature nylon related products.
Although China has Blonde Technology, Shanghai Jie and other very good high-temperature nylon production enterprises, but relative to the international chemical giant there is still a small gap, mainly because of our slow industrialization of high temperature nylon, less industrial varieties and performance Poor stability, there are still small-scale devices, technology and equipment is relatively backward and the problem of high production costs.
Future nylon modified development trend:
(1) high strength and high rigidity nylon market demand will be more and more large, such as whiskers, carbon fiber reinforced nylon will be more and more welcomed by the market;
(2) similar to PC / ABS, alloyed nylon will be the mainstream of modified development, such as PA66 / PA6T, PA6 / PA6T alloy;
(3) Flame retardant and environmentally friendly nylon applications will gradually spread;
(4) nylon conductive and anti-static modification will be an important direction for the future development of nylon;
(5) The manufacture and application of nano-nylon will be paid more and more attention.