山东化工
山東化工
산동화공
SHANDONG CHEMICAL INDUSTRY
2015年
1期
12-14,17
,共4页
阻燃共聚酯%纳米复合材料%流变性能%非牛顿指数%粘流活化能
阻燃共聚酯%納米複閤材料%流變性能%非牛頓指數%粘流活化能
조연공취지%납미복합재료%류변성능%비우돈지수%점류활화능
flame - retardant copolyester%nanocomposite%rheological property%non - Newton index%viscous activation energy
本文以对苯二甲酸（PTA）、乙二醇（EG）、9，10-二氢-9-氧杂-10-磷酰杂菲-丁二酸（DDP）和纳米硫酸钡乙二醇溶胶为单体，通过原位聚合的方式制备阻燃共聚酯/ BaSO4纳米复合材料，采用毛细管流变仪对聚酯（ PET）、阻燃共聚酯（ PET/10%DDP）和阻燃共聚酯纳米复合材料（PET/10% DDP/3% BaSO4和 PET/10% DDP/5% BaSO4）的流变性能进行了对比研究。结果表明：各样品的非牛顿指数均小于1，属于切力变稀流体，粘流活化能随剪切速率的增加而降低；相同温度下，PET/10% DDP/3%BaSO4的流动性能明显优于其它样品，熔体的表观黏度随纳米粒子含量的增加而增大；在各样品中，PET/10% DDP 的粘流活化能最高，当剪切速率升至3000s -1以上时，PET/10% DDP/3% BaSO4与 PET 的粘流活化能几乎相当，表明相比于阻燃共聚酯，添加纳米材料后降低了对纺丝温控精度的要求。
本文以對苯二甲痠（PTA）、乙二醇（EG）、9，10-二氫-9-氧雜-10-燐酰雜菲-丁二痠（DDP）和納米硫痠鋇乙二醇溶膠為單體，通過原位聚閤的方式製備阻燃共聚酯/ BaSO4納米複閤材料，採用毛細管流變儀對聚酯（ PET）、阻燃共聚酯（ PET/10%DDP）和阻燃共聚酯納米複閤材料（PET/10% DDP/3% BaSO4和 PET/10% DDP/5% BaSO4）的流變性能進行瞭對比研究。結果錶明：各樣品的非牛頓指數均小于1，屬于切力變稀流體，粘流活化能隨剪切速率的增加而降低；相同溫度下，PET/10% DDP/3%BaSO4的流動性能明顯優于其它樣品，鎔體的錶觀黏度隨納米粒子含量的增加而增大；在各樣品中，PET/10% DDP 的粘流活化能最高，噹剪切速率升至3000s -1以上時，PET/10% DDP/3% BaSO4與 PET 的粘流活化能幾乎相噹，錶明相比于阻燃共聚酯，添加納米材料後降低瞭對紡絲溫控精度的要求。
본문이대분이갑산（PTA）、을이순（EG）、9，10-이경-9-양잡-10-린선잡비-정이산（DDP）화납미류산패을이순용효위단체，통과원위취합적방식제비조연공취지/ BaSO4납미복합재료，채용모세관류변의대취지（ PET）、조연공취지（ PET/10%DDP）화조연공취지납미복합재료（PET/10% DDP/3% BaSO4화 PET/10% DDP/5% BaSO4）적류변성능진행료대비연구。결과표명：각양품적비우돈지수균소우1，속우절력변희류체，점류활화능수전절속솔적증가이강저；상동온도하，PET/10% DDP/3%BaSO4적류동성능명현우우기타양품，용체적표관점도수납미입자함량적증가이증대；재각양품중，PET/10% DDP 적점류활화능최고，당전절속솔승지3000s -1이상시，PET/10% DDP/3% BaSO4여 PET 적점류활화능궤호상당，표명상비우조연공취지，첨가납미재료후강저료대방사온공정도적요구。
Flame - retardant coplyester/ BaSO4 nanocomposites were prepared by in - situ melting polycondensation with terephthalic acid( TPA ), ethylene glycol ( EG ), nano - BaSO4 colloid and 9,10 - dihydro - 10[ 2,3 - di (hydroxycarbonyl)propyl]10 - phosphaphenanthrene - 10 - oxide(DDP). Rheological properties of PET/ 10% DDP/ 3%BaSO4 and PET/ 10% DDP/ 5% BaSO4 were studied and compared to PET and PET/ 10% DDP. The results showed that all samples were shear - thinning fluids,the non - Newton indexes were less than 1 and the viscous activation energies decreased with the increase of shear rate. At the same temperature,the flow performance of PET/ 10% DDP/ 3% BaSO4 was much better than other samples,but the apparent viscosity increased with the increasing of nanoparticles. PET/ 10% DDP had the highest viscous activation energy. PET/ 10% DDP/ 3% BaSO4 and PET had almost equal viscous activation energy when shear rate was more than 3000s - 1 . This result indicates that the adding of the nanoparticles reduces the control precision of the spinning temperature.
