熱ねつ硬こう化か物ぶつ

noun

thermosetting material

Technical term used in materials science and engineering, especially for plastics and resins that harden irreversibly when heated.

• 熱ねつ硬こう化か物ぶつは加か熱ねつすると化か学がく変へん化かを起おこして固かたまる。

  Thermosetting materials undergo a chemical change and harden when heated.