论文部分内容阅读
研究了SBR/纳米CaCO3复合粒子(RPS)的制备及其对PP的协同增韧作用。结果表明,高度交联的丁苯胶乳(DB-50)与纳米CaCO3浆液混合后喷雾干燥,得到一种具有类似“salami”结构的胶粉(RPS),纳米CaCO3粒子全部包藏在丁苯胶粉中。PP/RPS共混物的冲击强度高于熔融共混物PP/DB-50ENP/纳米CaCO3,RPS对PP具有显著协同增韧作用。
The preparation of SBR / nano-CaCO3 composite particles (RPS) and its synergistic toughening effect on PP were studied. The results show that the highly crosslinked styrene-butadiene latex (DB-50) is mixed with nano-CaCO3 slurry and spray dried to obtain a rubber powder (RPS) with a similar “salami” structure. in. The impact strength of PP / RPS blend is higher than that of melt blend PP / DB-50ENP / nano-CaCO3. RPS has significant synergistic toughening effect on PP.