2.The results showed that reducing melt viscosity fluctation,increaing draw ratio and circular blow filter sieve area,adjustment colletion tow angle could decrease the lineardensity uneveness.
3.The factors that have effect on the product quality of double cakes polyester FDY such as stringing up, exchange success rate, forming, stumbling yarn, lineardensity evenness, network point control, equipments maintenance and check up were analysed.
4.By optimizing and controlling the technology conditions of grey yarn lineardensity,spinning speed,stretching temperature,stretching ratio,tension-setting and shrink-setting,the polyester staple with shrinkage rate over 20% was successfully developed with normal polyester chip.
7.Result showed that MOE of bamboo scrimber is higher than that of poplar scrimber when the density is above 0.7?g/cm~3, and MOE is linear with density of scrimber.
8.Ammonium polyphosphate(APP) which was surface-modified with melamine(MA) and 2,4-toluene diisocyanate(TDI) in turn was used as flame-retardant in linear low density polyethylene(LLDPE).
9.The compatibilizing effects of the compatibilizer, ethylene - acrylic acid random copolymer (EAA),on linear low density polyethylene (LLDPE)/poly(ethylene oxide) (PEO) blends and the mechanism of compatibilization of the blends have been studied.
10.Conductive blends of aniline/o-anisidine copolymer doped by dodecyl benzene sulfonic acid [P(An-co-oAs)-DBSA], linear low density polyethylene (LLDPE) and ethylene-acrylic acid copolymer (EAA) as compatibilizer were prepared via melt blending.
