Modified polystyrene - modified polystyrene

Japanese: 改質ポリスチレン - かいしつぽりすちれん
Modified polystyrene - modified polystyrene

...It is also reinforced with glass fibers.
[Modified polystyrene]
Polystyrene is hard and has high rigidity, but it has problems such as being weak against impact and having low heat resistance. To improve its impact resistance, it is blended or copolymerized with rubber components such as polybutadiene.

*Some of the terminology that refers to "modified polystyrene" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ガラス繊維強化も行われる。
[改質ポリスチレン]
 ポリスチレンは硬く,剛性が高いが,衝撃に弱く,耐熱性が低いなどの問題点がある。そこで耐衝撃性の改善のため,ゴム成分,たとえばポリブタジエンのブレンドあるいは共重合が行われる。…

※「改質ポリスチレン」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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