The polyester microfilament was prepared by means ofnormal fully drawn yarn(FDY)equipment.The effectof water content in chips,the molecular weight of thechips,the jet stretch ratio and the lateral blow on thespinnabil...The polyester microfilament was prepared by means ofnormal fully drawn yarn(FDY)equipment.The effectof water content in chips,the molecular weight of thechips,the jet stretch ratio and the lateral blow on thespinnability and the finest titre of filament that could bereach were discussed.Under convenient conditions,thefiber with linear density of about 1.4 dtex could be ob-tained.By means of wide angle X-ray diffractometer(WAXD),differential scanning calorimeter(DSC)andInstrontester,the structure and properties of the mi-crofilament were discussed.展开更多
One new preparation method of Well-property LiCoO2 , which is synthesized by caclining a good precursor obtained from aqueous solution at lower temperature for shorter time, is studied in this paper. The experimental ...One new preparation method of Well-property LiCoO2 , which is synthesized by caclining a good precursor obtained from aqueous solution at lower temperature for shorter time, is studied in this paper. The experimental results indicate that LiCoO2 is pure phase layer structure with high crystallization, and excellent electrochemical properties are also proved owing to its initial charge and discharge specific capacity of 205mAh/g ,169mAh/g at the current of 0.2C respectivly.展开更多
文摘The polyester microfilament was prepared by means ofnormal fully drawn yarn(FDY)equipment.The effectof water content in chips,the molecular weight of thechips,the jet stretch ratio and the lateral blow on thespinnability and the finest titre of filament that could bereach were discussed.Under convenient conditions,thefiber with linear density of about 1.4 dtex could be ob-tained.By means of wide angle X-ray diffractometer(WAXD),differential scanning calorimeter(DSC)andInstrontester,the structure and properties of the mi-crofilament were discussed.
文摘One new preparation method of Well-property LiCoO2 , which is synthesized by caclining a good precursor obtained from aqueous solution at lower temperature for shorter time, is studied in this paper. The experimental results indicate that LiCoO2 is pure phase layer structure with high crystallization, and excellent electrochemical properties are also proved owing to its initial charge and discharge specific capacity of 205mAh/g ,169mAh/g at the current of 0.2C respectivly.
