Extruded and moulded semi-finished goods made of TECAMAX SRP are used in many different fields of application.
ENSINGER develops and produces moulded and extruded semi-finished goods made of Parmax®.
As the polymer chains in TECAMAX SRP are rigid and strong, the addition of strengthening additives is not necessary. Nevertheless, it is possible to achieve properties, which cannot be obtained with conventional, non-reinforced plastics.
Self-reinforcing TECAMAX SRP is thus considered to be the strongest, hardest and most rigid non-reinforced polymer which is commercially available in the world.
The structure TECAMAX SRP is based on a substituted poly (1,4-phenylene) structure, (polyparaphenylene copolymer material) where by each phenyl ring possesses a substitute which can originate from a wide range of organic groups. This structure determines the unique properties of this material. The rigid backbone produces strength and stiffness, whereby the substitutes influence processing ability.
Properties, which differ distinctly from those of other polymers
- Considerably stiffer and harder than other non-reinforced thermoplastics
- Excellent mechanical properties, even at very low temperatures (E-modulus 8,300 MPa at 295K compared to 9,600 MPa at4 K, thermal shrinkage at 4 K only 0.557% and yield stress 210 MPa)
- Remarkably high pressure resistance
- Higher scratch and abrasion resistance than other thermoplastics
- Outstanding chemical resistance
- Outstanding dimensional stability before and after processing; machined parts with tolerances < 25?m.
TECAMAX SRP is suitable for parts where low weight is just as important as high stability, compressive strength and precision. Examples are bearings, gearwheels, flanges and pipes, valve seats, high pressure seals, thermal and electrical insulators and sample holders.
Areas of use
TECAMAX SRP is used preferentially in the aeronautics and space industry, in the semi-conductor and electronics field, in the automotive sector, in medical technology, in nuclear and cryogenic engineering, in instrument technology, construction of scientific apparatus and mechanical engineering.
TECAMAX SRP can be machined to the tightest tolerances with standard equipment using hardened metal or diamond tools and can be superbly polished.
|Mechanical properties at high temperatures||Tg 155°C; HDT/A 150°C; long-term use 130°C; short-term use 160°C||Tg 143°C; HDT/A 140°C; long-term use 260°C; short-term use 300°C||Tg 90°C; HDT/A 110°C; long-term use 230°C; short-term 260°C||Tg 360-375°C; HDT/A 360°C; long-term use 300°C; short-term use 360-400°C|
|Cryogenic properties||Stable to approx.|
|Stable to approx.|
|Stable to approx.|
|Stable to Approx.|
|Flame resistance (UL94)||V-O (3,2 mm)||V-O (1,45 mm)||V-O (3,0)||V-O (0,75)|
|Hot steam resistance|
|Stress fracture resistance|