供應美國DuPont Rynite 925ST BK509 PET材料介紹：
Rynite 925ST is a 25% glass fiber/mineral reinforced, toughened polyethylene terephthalate for injection molding. It has improved break resistance, dimensional stability and low warpage.杜邦PET材料特性：
When you’re looking for the ultimate combination of stiffness,
temperature performance, maximum dimensional stability, and
a high gloss finish, RYNITE PET is the mostcost-effective answer.
It unites the best properties of reinforced polyethylene terephthalate
（PET） with easier processability to produce high performance
parts that can be moulded conventionally.
RYNITE is the only PET-based polyester system with the virtue of
rapid crystallization. It also has a 20°C heat deflection advantage
over PBT. It can be processed over a broad temperature range.
And, because of its low water absorption, parts in RYNITE PET
maintain their properties and dimensional stability. This makes it
a prime candidate for the replacement of die-cast metals and thermosets
in many demanding applications where stiffness, critical
tolerances and exterior finish are key requirements. The outstanding
flow characteristics of RYNITE PET allow it to fillcomplex, thinwalled
moulds with less injection pressure than is needed with
other resins. This is a particularly important advantage with miniature
parts.
RYNITE FR530L, widely used inthe electrical and electronic component
industries, has a UL temperature index of +155°C, among
the highest of allthermoplastic polyesters.
杜邦PET材料應用：
1. This induction hob from BSH Balay is made of RYNITE, which was chosen for its dimensionalstability, stiffness and good mouldability. The RYNITE FR531 NC used by Balay was specially developedto support temperatures of up to 200°C.
2. RYNITE 545 was chosen for theconnector housing of this Bosch alternator because of the good combination ofmechanical properties it offers. In addition it has good thermal and
chemical resistance. It also permits high productivity in multi-cavitymoulds.
3. This encapsulated oscillating pump for carpet cleaners employs twodifferent
grades of RYNITE: FR530 and HP415. TheClass F homologation of these grades permit the use of this pump for export tothe USA. The possibility to laser print RYNITE avoids the
utilisation of more polluting solventbased marking systems.
4. The recent range of irons launched by Braun is using a custom coloured,heat stabilised RYNITE PET for the iron skirt. RYNITE gives higher productivity at lower total cost compared tothe thermoset which was used previously.
5. An earlier die-cast metal motor with fan （left）, and the re-designedunit in RYNITE （right）. The switchfrom metal to plastics meant simpler manufacturing, weight reduction, fewercomponents and lower assembly costs, reduced stock inventory and improved performancefor a range of vacuum cleaners from Electrolux.
6. Rear windshield wiper arms for cars like the Fiat “Punto” are made outof a RYNITE grade which is specifically developed for severeweathering conditions. Mechanical properties
like creep resistance, as well as superior surface appearance, are ofmajor importance in this application.
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