Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 219
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This post was last edited by ljtjbx on 2015-11-23 at 15:35. Assessment: Polyvinyl chloride is an amorphous polymer, and it shows little shrinkage when its melt cools down. ( ) Answer: Correct —————————————————— Please note: We will close this thread after 24 hours, and at that time we will announce the best response (the best help), as well as the answer and explanation. Attraction Reward: Those who post a topic in this section within two days to provide a detailed explanation or discussion on the knowledge points related to this question are asked to reply/comment in this post to inform us, and we will have a moderator award them + Attraction. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights.
Polyvinyl chloride is an amorphous polymer, and it exhibits a low shrinkage rate when its melt cools. ( √ )
Polyvinyl chloride is an amorphous polymer, and it exhibits a low shrinkage rate when its melt cools. ( ✔ )
Polyvinyl chloride is an amorphous polymer, and it exhibits a low shrinkage rate when its melt cools. (Yes) Polyvinyl chloride is an amorphous polymer; when its melt cools down. The shrinkage rate is low: 0.1–0.4% for the rigid type; 1–5% for the soft type [without fillers].
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Polyvinyl chloride is an amorphous polymer, and it exhibits a low shrinkage rate when its melt cools. (Correct)
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Polyvinyl chloride is an amorphous polymer, and it exhibits a low shrinkage rate when its melt cools. (Yes)
Answer: Polyvinyl chloride is an amorphous polymer, and it exhibits a low shrinkage rate when its melt cools. (Correct)
Polyvinyl chloride is an amorphous polymer, and it shows little shrinkage when the melt cools. That’s correct