PC material datasheet


 

Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent. They are easily worked, molded, and thermoformed. Because of these properties, polycarbonates find many applications.

 

Chemical and physical properties

 

Polycarbonate is a durable material. Although it has high impact-resistance, it has low scratch-resistance. Therefore, a hard coating is applied to polycarbonate eyewear lenses and polycarbonate exterior automotive components. The characteristics of polycarbonate compare to those of polymethyl methacrylate (PMMA, acrylic), but polycarbonate is stronger and will hold up longer to extreme temperature. Polycarbonate is highly transparent to visible light, with better light transmission than many kinds of glass.

 

Polycarbonate has a glass transition temperature of about 147 °C (297 °F; 420 K), so it softens gradually above this point and flows above about 155 °C (311 °F; 428 K).[8] Tools must be held at high temperatures, generally above 80 °C (176 °F; 353 K) to make strain-free and stress-free products. Low molecular mass grades are easier to mold than higher grades, but their strength is lower as a result. The toughest grades have the highest molecular mass, but are much more difficult to process.

 

Polycarbonate can undergo large plastic deformations without cracking or breaking. As a result, it can be processed and formed at room temperature using sheet metal techniques, such as bending on a brake. Even for sharp angle bends with a tight radius, heating may not be necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are needed, which cannot be made from sheet metal. PMMA/Acrylic, which is similar in appearance to polycarbonate, is brittle and cannot be bent at room temperature.

 

* Citing source: Wikipedia

Chemical resistance chart

 

How to use this chart

 

» Meaning of symbol:

OK: Recommended.

△: Must confirm if usable by testing in advanced.

X: Not recommended.

» This chart only provides the result of a single chemical to material, if a client uses more than one kind of chemical at the same time, please choose material by experience.

» This chart is for reference only which is not applicable to all working environments. Please refer to design equipment according to practical experience.

 

Category

Chemical

PC

Organic acids

Acetic acid

OK (20%)

Acetic acid, glacial

OK

Acetic anhydride

X

Citric acid

OK

Organic compound

Acetaldehyde

X

Acetone

X

Methyl alcohol

OK (20%)

Aniline

X

Benzaldehyde

X

Benzene

X

Benzyl alcohol

X

Benzyl chloride

N/A

Corn oil

N/A

Ethanol

OK

Ethylene glycol

OK

Fatty acid

OK

Formaldehyde

OK (40%)

Formic acid

OK

Hexane

X

Lactic acid

OK

Methanol

OK

Paraffin oil

OK

Petroleum

N/A

Phenol

OK

Propane, liq

X

Propanol

OK

Stearic acid

OK

Tannic acid

N/A

Tartaric acid

OK

Toluene

X

Urea

OK

Inorganic compound

Ammonia

X

Ammonium chloride

OK

Ammonium hydroxide

X

Ammonium nitrate

N/A

Ammonium sulfate

OK

Aqua regia

X

Barium chloride

OK

Barium hydroxide

X

Brine

N/A

Calcium Chloride

N/A

Calcium hydroxide

X

Carbonic acid

OK

Chloric acid

N/A

 Chloric  N/A

Chlorine

 N/A

Detergent

X

Hydrobromic acid

N/A

Hydrochloric acid

X

Hydrofluoric acid

X

Hydrogen peroxide

OK (30%)

Nitric acid

OK (5%)

OK (40%)

Phosphoric acid

OK (<40%)

Potassium hydroxide

X

Potassium nitrate

OK

Potassium sulfate

OK

Sodium carbonate

OK

Sodium hydroxide

X

Sodium nitrate

N/A

Sulfuric acid

X

Sulfur dioxide

N/A

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