Undesirably the toughening effect of liquid rubber in unsaturated polyester resin is much weaker than in epoxy resin.
遗憾的是液体橡胶增韧不饱和聚酯树脂的效果远不如对环氧树脂的增韧。
2
The synthesis and properties of elastic unsaturated polyester were investigated and the use of the elastomer compounded with nitrile butadiene rubber was discussed.
本文研究了弹性体不饱和聚酯的合成，并对有关性能和丁腈橡胶的并用进行了讨论。
3
Separation and purification method for multi-valence unsaturated fatty acid was introduced, as well as its application prospect in production of rubber seed oil.