PPSU / PEI / PSU
 
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PPSU / PEI / PSU
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Sheets, Rods
Colours
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Similar Plastics
PVDF, Ketron Peek, Duratron PAI

PPSU PSU

PPSU / PEI / PSU: Sheets & Rods

Polyphenylsulphone (PPSU), Polyetherimide (PEI) and Polysulphone (PSU) are all amorphous thermoplastic materials that have a lot of features in common, and all three offer a combination of excellent mechanical, thermal and electrical properties.

Polyphenylsulphone (PPSU) black -

PPSU is a high performance properties make it an an amorphous thermoplastic that offers high impact strength and chemical resistance. PPSU exhibits increased hydrolysis resistance it, making it specifically engineered for repeated steam sterilisation applications.

Polysulphone (PSU) yellow, translucent -

PSU is another amorphous thermoplastic offering a strong combination of excellent thermal, electrical and mechanical properties. PSU is produced from non-UV stabilised polysulphone resin and offers very good radiation stability, low ionic impurity levels and good chemical resistance and hydrolysis resistance. Compared to PEI, PSU has a lower property profile and often replaces polycarbonate when higher temperature resistance, improved chemical resistance and autoclavability are required.

Polyetherimide (PEI) amber, translucent -

PEI is an advanced polymer with properties such as outstanding thermal, mechanical and electrical properties, together with very low flammability and low levels of smoke evolution during combustion. These features make PEI extremely suitable for electrical insulators and for a variety of structural components requiring high strength and rigidity at elevated temperatures.

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PPSU / PSU / PEI Characteristics

Polyphenylsulphone (PPSU) Characteristics:

  • High maximum allowable service temperature in air (180°C continuously)
  • Good chemical and excellent hydrolysis resistance (suitable for repeated steam sterilisation)
  • High stiffness over a wide temperature range
  • Very high impact strength
  • Physiologically inert (suitable for food contact)
  • High dimensional stability
  • Translucent, non-optical quality (except for PPSU which is black)
  • Very good resistance against high energy radiation (gamma & X-rays)
  • Good electrical insulation and dielectric properties

Polyphenylsulphone (PPSU) Technical Notes

Since unfilled / unreinforced amorphous thermoplastics inherently possess a low wear resistance and high coefficient of friction, PPSU is not recommended for use in friction & wear applications (this also applies to PEI and PSU).

Polysulphone (PSU) Characteristics

  • High maximum allowable service temperature in air (150°C continuously)
  • Good hydrolysis resistance (suitable for repeated steam sterilisation)
  • High strength and stiffness over a wide temperature range
  • Physiologically inert (suitable for food contact)
  • Good dimensional stability
  • Translucent, non-optical quality (except for PPSU which is black)
  • Very good resistance against high energy radiation (gamma & X-rays)
  • Good electrical insulation and dielectric properties

Polysulphone (PSU) Technical Notes

Amorphous thermoplastics like PSU are sensitive to stress cracking when in contact with polar solvents (e.g. ethyl alcohol). Environments, which might be completely harmless to unstressed parts, may cause stress cracking with highly stressed parts (this also applies to PEI and, to a lesser extent, also PPSU).

Polyetherimide (PEI) Characteristics

  • High maximum allowable service temperature in air (170°C continuously)
  • Very good hydrolysis resistance (suitable for repeated steam sterilisation)
  • High strength and stiffness over a wide temperatures range
  • Inherent low flammability and low levels of smoke evolution during combustion
  • Good dimensional stability
  • Physiologically inert (suitable for food contact)
  • Very good resistance against high energy radiation (gamma & X-rays)
  • Very good electrical insulation and dielectric properties

Polyetherimide (PEI) Technical Notes

Cooling liquids of the soluble oil type should not be used when machining PEI since they are likely to induce environmental stress cracking. For this material, the most suitable coolants are pure water or compressed air (this also applies to PPSU and PSU).

PPSU / PSU / PEI Applications

PPSU - Endoscopic Probe Positioning Ferrule

Endoscopic Probe Positioning Ferrule

For endoscopic surgical devices, a positioning ferrule on the instrument handle is intricately machined from PPSU rod. (Prior material: Stainless Steel).

PEI - Structural Probes

Structural Probes

Surgical probes machined from Durateon PEI rods are autoclavable, and offer high strength and rigidity. (Prior materials: Acetal, Polysulfone).

PEI - Manifolds

Manifolds

In pharmaceutical process equipment, manifolds machined from Duratron PEI plate offer resistance to hot chemical solutions and daily sanitising. (Prior material: Aluminium).

PEI - Insulators

Insulators

High frequency insulators used in microwave communications equipment are machined from Duratron PEI stock shapes. (Prior material: Ceramic).

PEI - Clamps

Clamps

High voltage and flame resistance of Duratron PEI make it ideal for clamps used to connect printed circuit boards to video display units used in airlines, tanks and ships. (Prior materials: Acetal).

PSU - Steam Cleaning Equipment Inserts

Steam Cleaning Equipment Inserts

Inserts made of PSU 1000 Polysulfone reduce chemical attack on the nylon distribution block in hot water and steam cleaning equipment. (Prior material: Nylon).

PPSU / PSU / PEI Availability

PPSU / PEI / PSU Type Round Rods Sheet / Plates
PPSU5mm - 150mm10mm - 100mm
PEI6.35mm - 152.40mm6.35mm - 50.80mm
PSU5mm - 150mm10mm - 100mm

Buy PPSU/PEI/PSU online

Buy PPSU/PEI/PSU online

PPSU / PSU / PEI Downloads

Information PDF
PPSU Data Sheet PDF
PPSU Safety Sheet PDF
PEI Data Sheet PDF
PEI Safety Sheet PDF
PSU Data Sheet PDF
PSU Safety Sheet PDF

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Unit H1 High Flatworth
Tyne Tunnel Trading Estate
North Shields
Tyne & Wear
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United Kingdom

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Bay Plastics Ltd
Unit H1 High Flatworth,
Tyne Tunnel Trading Estate,
North Shields
Tyne & Wear
NE29 7UZ
Tel: 0191 2580777
Fax: 0191 2581010

Co Reg No. 2325035

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