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The effect of temperature on the strength of linear thermoplastics is that:
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- as the temperature of thermoplastics increases, they cure by cross-linking and forming a three-dimensional network of covalent bonds, increasing the strength of the thermoplastic
- same effect as (a), except that as the temperature gets sufficiently high, the covalently, bonded network weakens and eventually burns
- nothing happens. Temperature doesn’t affect thermoplastics
- as the temperature of thermoplastics is increased, the secondary atomic bonds weaken and the material softens
Correct Option: D
Thermoplastics typically have the structure of long chains of covalenly bonded molecules with secondary atomic bonds between the linear chain. The effect of temperature on the strength of the linear thermoplastics is that as the temperature of thermoplastics is increased, the secondary atomic bonds weaken and the material softens.
