塑料助剂
塑料助劑
소료조제
PLASTIC ADDITIVES
2012年
2期
40-43
,共4页
张洁%李景宜%张梅%丁会利
張潔%李景宜%張梅%丁會利
장길%리경의%장매%정회리
等规聚丙烯%稀土β%成核剂%流变性能
等規聚丙烯%稀土β%成覈劑%流變性能
등규취병희%희토β%성핵제%류변성능
isotactic polypropylene%rare earth β nucleating agent%rheological behavior
研究了稀土β成核剂WBG-1对等规聚丙烯（iPP）的加工和挤出流变性能的影响,研究发现,0.1%（质量分数）WBG-1的加入使iPP粘流活化能变大;在剪切速率相同的情况下,随β成核剂浓度的增大,剪切压力具有减小的趋势;在低剪切速率范围内,成核剂的加入使相同剪切速率下iPP的剪切粘度变小,但随着剪切速率的增大,剪切粘度随剪切速率变化的曲线出现明显的靠拢。
研究瞭稀土β成覈劑WBG-1對等規聚丙烯（iPP）的加工和擠齣流變性能的影響,研究髮現,0.1%（質量分數）WBG-1的加入使iPP粘流活化能變大;在剪切速率相同的情況下,隨β成覈劑濃度的增大,剪切壓力具有減小的趨勢;在低剪切速率範圍內,成覈劑的加入使相同剪切速率下iPP的剪切粘度變小,但隨著剪切速率的增大,剪切粘度隨剪切速率變化的麯線齣現明顯的靠攏。
연구료희토β성핵제WBG-1대등규취병희（iPP）적가공화제출류변성능적영향,연구발현,0.1%（질량분수）WBG-1적가입사iPP점류활화능변대;재전절속솔상동적정황하,수β성핵제농도적증대,전절압력구유감소적추세;재저전절속솔범위내,성핵제적가입사상동전절속솔하iPP적전절점도변소,단수착전절속솔적증대,전절점도수전절속솔변화적곡선출현명현적고롱。
The effect of rare earth β-nucleating agent WBG-1 on processing and rheological properties of extruded of isotactic polypropylene（iPP） was studied.The results show that according to the addition of nucleating agent,the flow activation energy of iPP modified by 0.1%WBG-1 is large;shear stress has the trend to decrease with the β nucleating agents increase at the same shear rate,shear viscosity decrease when mixed with nucleating agent at the same low shear rate,but shear viscosity-shear rate curves shows obvious drawing close when shear rate increases.
