thermoset
意味: A type of polymer that undergoes an irreversible chemical change when cured by heat, forming a rigid structure that cannot be remelted or reshaped. Also used as an adjective.
Thermoset polymers — including epoxy, polyester resin, and vulcanised rubber — form permanent cross-links between polymer chains during curing, giving them superior heat resistance, chemical stability, and structural rigidity compared to thermoplastics. However, this irreversibility makes recycling extremely difficult. Thermosets are widely used in aerospace composites, electrical insulation, and adhesives. The key distinction from thermoplastics is that thermosets decompose rather than melt when reheated.
例文
- The aircraft's wing skins are made from a thermoset carbon-fibre composite that offers exceptional strength-to-weight performance. 该飞机的机翼蒙皮由热固性碳纤维复合材料制成,具有卓越的强度重量比性能。Los revestimientos de las alas del avión están fabricados con un compuesto termoestable de fibra de carbono que ofrece una excepcional relación resistencia-peso.その航空機の翼の外板は、卓越した強度対重量比を持つ熱硬化性の炭素繊維複合材料で作られている。그 항공기의 날개 외판은 뛰어난 강도 대 중량비를 가진 열경화성 탄소섬유 복합재료로 제작되었다.
- Unlike thermoplastics, thermoset materials cannot be recycled through conventional melting processes. 与热塑性塑料不同,热固性材料无法通过传统的熔融工艺进行回收。A diferencia de los termoplásticos, los materiales termoestables no pueden reciclarse mediante procesos convencionales de fusión.熱可塑性プラスチックとは異なり、熱硬化性材料は従来の溶融プロセスではリサイクルできません。열가소성 플라스틱과 달리 열경화성 재료는 기존의 용융 공정으로는 재활용할 수 없다.
- The electrical switchgear housing was moulded from a thermoset resin chosen for its flame-retardant properties. 该电气开关柜外壳采用具有阻燃性能的热固性树脂模制而成。La carcasa del cuadro eléctrico se moldeó con una resina termoestable elegida por sus propiedades ignífugas.その配電盤の筐体は難燃性を理由に選ばれた熱硬化性樹脂で成形された。그 배전반 하우징은 난연성을 이유로 선택된 열경화성 수지로 성형되었다.
発音
使い方ガイド
場面: academic, professional
トーン: neutral
起源と歴史
From Greek thermos (hot) and English set (to harden, solidify). Coined in the early 20th century to distinguish irreversibly cured polymers from those that could be remelted.
文化的背景
Era: Modern
Generation: All ages
Social background: Universal
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