Perspex is chemically equivalent to_____________________?
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Answer: A. Acrylic sheet
Explanation
Perspex is a transparent thermoplastic material chemically known as polymethyl methacrylate. Polymethyl methacrylate is commonly referred to in industry as acrylic sheet or plexiglass. This synthetic polymer provides high optical clarity and excellent weather resistance. Thermoplastics soften when heated and harden upon cooling without chemical decomposition. Acrylic polymers are produced via free radical polymerization of methyl methacrylate monomers. The material offers a lightweight, shatter-resistant alternative to traditional silicate glass.
Aircraft windows and submarine viewports frequently utilize thick acrylic sheets for visibility. Signage and architectural glazing rely on Perspex for its durability and weather stability. Display cases and protective barriers are commonly fabricated from clear acrylic plastic. Elastomers are rubber-like polymers characterized by high elasticity and reversible deformation. Lead and tin alloys are fusible metals utilized for soldering rather than clear plastics. Aluminium foil clad with Bakelite describes a composite material, not transparent acrylic.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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