WebLearn and revise material categories and properties with BBC Bitesize for GCSE Design and Technology OCR. ... Polystyrene (PS) ... Properties of natural rubber but processed like other plastics ... WebApr 10, 2024 · Polystyrene is a polymer of styrene. It is a synthetic aromatic hydrocarbon. It is hydrophobic in nature. Its IUPAC name is poly (1-phenylethane-1,2-diyl). Its general …
Reinforcing and stiffening - Polymers - Edexcel - GCSE Design and ...
WebMar 14, 2024 · starch, a white, granular, organic chemical that is produced by all green plants. Starch is a soft, white, tasteless powder that is insoluble in cold water, alcohol, or other solvents. The basic chemical formula of … WebThermoforming polymers Thermoforming polymers can be heated and formed repeatedly. They are pliable and recyclable, which is one of the biggest advantages of thermoforming … birchaven condos findlay ohio
Starch Definition, Formula, Uses, & Facts Britannica
WebBBC Bitesize, also abbreviated to Bitesize, is the BBC's free online study support resource for school-age pupils in the United Kingdom. It is designed to aid pupils in both schoolwork and, for older pupils, exams. National sections England. The Key Stage 1, 2 and 3 along with GCSE section covers a range of subjects. ... WebMay 10, 2013 · BBC Bitesize KS3 RevisionFoundation (3-5)Tape 18 WebAll polymers are glassy below a characteristic glass transition temperature ( Tg ), which ranges from as low as −125 °C (−195 °F) for an extremely flexible molecule such as polydimethyl siloxane (silicone rubber) to extremely high temperatures for stiff, bulky molecules. For both PS and PMMA, Tg is approximately 100 °C (212 °F). dallas county tx interactive map