Engineering / High performance plastic at lower cost
A syndiotactic polystyrene grade offering a set of thermal, chemical, electrical and impact
resistance properties at affordable cost compared to engineering / high performance plastics
(PA, PPS, sPS...)
Benefits
- Lower cost
- Temperature resistance
- Chemical reisistance
- Electrical properties
- High stiffness
Issue
Many industrial applications require materials combining:
- low density / weight
- temperature resistance
- chemical and hydrolysis resistance
- mechanical properties including impact resistance.
Existing plastics such as PA, PPS, sPS... fulfil only a subset of these properties and therefore often need to be compounded (rubber, glass fibres…). These plastics are often sold at prices
above 5 €/kg.
Solution
We intend to develop a new syndiotactic polystyrene grade offering a set of high-level properties (thermal, chemical, mechanical resistance, good electrical properties), even without any compounding.
Our new process should allow a sales price of about 3 to 4 €/kg.
Key figures for the “neat” polymer:
- Density: 1.2 g/cm3
- Melting temperature: 250 - 270 °C
- Tensile modulus: 2-3 GPa
- Elongation at break: over 50%
- Notched impact: 7-12 kJ/m²
- Processing temperature: 270-300°C
- Heat deflection temperature at 1.80 MPa: 85-95°C
- Dielectric constant at 23°C, 1 MHz: 2.6
- Excellent chemical resistance
Combination with glass fibres (for instance) could further boost mechanical performances.