Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for those who participate； Question 227
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This post was last edited by ljtjbx on 2015-12-4 08:29. Fill in the blank: A resin that softens or even melts when heated, and hardens again after cooling without undergoing any chemical changes; it can maintain this property no matter how many times it is subjected to such processes (or a resin that softens when heated and hardens when cooled without any chemical reactions, and can be reused repeatedly). Such resins are called: ( ). Answer: Thermoplastic resin. ------------------------- —————————————————— Please note: We will close this post after 24 hours, and at that time we will announce the best reply (the best assistance), 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/comments in this post to inform us, and we will have a moderator grant 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.
Thermoplastic resin. -------------------------
A resin that softens or even melts when heated, and hardens upon cooling without undergoing any chemical changes; it retains these properties no matter how many times this process is repeated (or a resin that softens when heated and hardens when cooled without any chemical reactions, allowing it to be used repeatedly). Such resins are called: (thermoplastic resins).
A resin that softens or even melts when heated, and hardens upon cooling without undergoing any chemical changes; it retains these properties no matter how many times this process is repeated (or a resin that softens when heated and hardens when cooled without any chemical reaction, allowing it to be used repeatedly). Such resins are called: (thermoplastics).
Resins that soften or even melt when heated, and harden upon cooling without undergoing any chemical changes; they retain these properties no matter how many times this process is repeated. (Or resins that soften when heated and harden when cooled, without undergoing chemical reactions, and can be reused multiple times.) Such resins are called: thermosetting resins.
A resin that softens or even melts when heated, and hardens upon cooling without undergoing any chemical changes; it retains these properties no matter how many times this process is repeated (or a resin that softens when heated and hardens when cooled without any chemical reactions, allowing it to be used repeatedly). Such resins are called: (thermoplastic resins).
A resin that softens or even melts when heated, and hardens upon cooling without undergoing any chemical changes; it retains these properties no matter how many times this process is repeated (or a resin that softens when heated and hardens when cooled without any chemical reactions, allowing it to be used repeatedly). Such resins are called: (thermoplastic resins).
This type of resin is called: (Thermoplastic resin).