The effects of the composition and molecular weight of the HDI oligomer on the properties of coating film were studied.

 
  • 通過(guò)改變HDI齊聚物合成反應的條件,探討了齊聚物的組成和分子量對涂膜性能的影響。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan