Extensive application of the hottest plastic polye

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Thermoplastic polyester is widely used in the packaging industry. 2

it is more used in electronics

according to a research report provided by Sri consulting company in California, the demand for polymer resin and composites in the North American market is 600million pounds. The report author subdivides the polymer market into 60% PBT (including alloy), 16% pet, and 22% copolyester (of which PETG accounts for 80%). In the next few years, the annual growth rate of domestic demand in the United States is expected to be 5% to 6%. Many polymer materials, especially molded PBT, began to turn to the Asia Pacific region, where the proportion of consumption is increasing

more than 50% of the demand for PBT comes from molded electronic plug-in components, automobile wire harnesses, printed circuit boards with a small proportion and filled or Reinforced PET bottles. This changing market has put forward requirements for high temperature resistance, in addition to miniaturization, the increase of dense components under the car cover and lead-free welding methods

the reaction of polymer suppliers is to promote the upgrading of plug-in component materials, so that they will not be eliminated, wasted and replaced by other resins. In addition, it is important to develop new technologies to make polyester enter a new application field. DuPont purchased the technology and sales right of Eastman to strengthen thermoplastic PCT, pet and PCTA synthetic materials. DuPont believes that PCT can comprehensively expand the application of engineering thermoplastic sheets in electronic products

David glasscock, DuPont's manager of high temperature materials in North America, said that PCT brought DuPont a crystalline and transparent polymer. Its short-term hot pressing performance achieved sales of 26million yuan in 2016, making up for the gap between pet liquid crystal polymers (LCPs). Facts have proved that 30% of glass reinforced PCT materials, HDT has a pressure resistance of 264 pounds at a high temperature of 262 degrees Celsius. Compared with the performance range of pet (224 C HDT) and LCP (288 C), PCT is an advantage

the heat resistance of PCT is suitable for electronic components requiring infrared reflow and surface assembly welding. Both processes involve high operating temperature. Tyco Electronics, N.C., has accepted the use of a PCT (thermo cgt33 type) containing 33% glass to replace the PBT used in automotive battery plug-in components, which have long been changed to infrared welding

it is said that compared with other similar materials, PCT composites can provide excellent electronic properties and good arc tracking resistance. Anti arc tracking provides new opportunities for wire harness and switch applications for hydrogen electric vehicles and 42V vehicles with rapid growth. DuPont is developing new PCT grades and alloys for this application potential

another response to the market changes of automotive plug-in components is the introduction of anti hydrolysis technology

pbt can modify polymers and additives to increase various resistance under high temperature and humidity conditions. Mitchell Lee, product manager of BASF polyester, said that PBT has achieved continuous success in the application of automotive plug-in components, because higher moisture resistance means the improvement of bending resistance and high temperature resistance, which makes plug-in components can produce products that meet global standards without redesigning and re opening the mold of existing components. BASF is developing hydrolysis resistant PBT to reduce costs

ticona recently added an impact resistant, glass/mineral reinforced alloy grade hydrolysis resistant celanex PBT, of which celanex 3425 HRT contains 40% glass material, which is not only rigid, but also has superior bonding ability with epoxy resin

polymer recently emphasized that PBT grade provides undirected shrinkage for high-density plug-in components. The dimensional error of these products is critical, and they have high crack resistance in terminal assembly

lnp engineered plastics used to have a small share in PBT, but now it is seeking to do more in the electronic market. LNP wants to use its proprietary technology in the production of PBT electronic components, which has the advantages of high flow, non halogen FR and undirected shrinkage

PTT, a new polyester material, can be used to make electronic components

beyond the application of plug-in components

DuPont improves the aesthetics of its Reinforced PET and PBT series, and the new product shine-e Rynite pet is greatly improved in brightness and coloring. One grade of the product has a class a appearance of automobile exterior decoration, which is coated in E-coat oven together with metal parts. In addition, when used on non painted auto parts such as door handles, the brightness and color are not the same as before

DuPont launched comprehensive reinforced and non reinforced crastin PBT products to solve the existing problems in the huge automobile headlamp cover market. At present, metal plating of pbt/pet alloy under vacuum cannot form an automatic stop surface in the mirror state, which requires another layer of primer. The redundant coating steps pose a threat to the cost competition of pbt/pet with thermosetting materials and metals

the new crastin ce2548 is a full PBT synthetic material, which is specially designed for the head lamp shade to obtain an ideal mirror effect by direct spraying. This proprietary strengthening technology is said to achieve a perfect reflective surface without additional coating. Richard Mayo, global marketing manager of DuPont PBT, said that this synthetic material is being used in some American cars, such as Lincoln cars. At the same time, crastin ce2055 is a new kind of non reinforced PBT. Its flow characteristics can provide a bright and reflective effect beyond the reinforced material, so that the direct metal spraying of the lampshade can obtain a high gloss surface. This product is said to lighten the parts and has been used in Europe

dupont has found a new application field for food grade thermox PCT, that is, industrial and commercial baking utensils that can withstand 350 f high temperature

ge advanced materials has recently introduced a new pbt/pet blend. Because this kind of instrument uses long-time materials for the production of lightweight headlamp shades, this valox eh7020hf is an improved product based on the 20% mineral extrusion unit currently used for headlights. Its optional auxiliary equipment is also different, and its thickness is reduced because of its better fluidity

now BASF integrates the original Honeywell Reinforced PET compound with ultradur PBT series. They claim that although the current plastic price is volatile, the recycled bottle grade resin used for Petra pet compound is "natural, stable in price and real in cost". Ticona introduced a celanex PBT Blend with low melting point (297 f) for pet non-woven fabrics, which is used to produce automotive headlights, covers and luggage compartment liners. Unlike the current cotton fibers containing phenolic compounds, this full polymer system uses recycled materials completely, which not only reduces weight, but also improves heat and sound insulation effects

new compounds provide a flawless reflective appearance, and PBT has a bright future in the application of automotive headlamp shades. New compounds provide a flawless reflective appearance, and PBT has a bright future in the application of automotive headlamp shades

(to be continued)

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