欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用差示扫描量热法（DSC）研究了聚乳酸（PLA）在温度区间为40—180℃的连续质量定压热容（比热容）值；采用瞬态平面热源技术（TPS）研究了不同注塑工艺条件下聚乳酸的热导率和热扩散率。研究表明：聚乳酸的比热容会随温度的变化发生改变，造成其固液相比热容的不同；聚乳酸的热导率受注塑工艺条件的影响较小，在设定的范围内可以忽略其对热导率的影响；而热扩散率受注塑压力的影响较大，这与聚乳酸的相形态结构有关。
英文摘要：
The specific heat capacity of poly（lactic acid） （PLA） was measured from 40℃ to 180℃ obtained by DSC ; The thermal conductivity and diffusivity of PLA in different injection processes were investi- gated using TPS. It was found that the specific heat capacity of PLA would change with the temperature which leads to the difference of the solid liquid phase of specific heat capacity. The injection technology had little effect on the thermal conductivity and could be ignored while injection pressure had influence on the thermal diffusivity. It was concerned with the phase structure of PLA.
同期刊论文项目
同项目期刊论文
Synergistic effect of stereocomplex crystals and shear flow on the crystallization rate of poly( L -
Flexibility Improvement of Poly(L-lactide) by Reactive Blending with Poly(ether ure thane) Containin
Optical and Rheological Properties of Toughening Polylactide by Melt Blending with Poly(ethylene gly
Grafting polymerization of polylactic acid on the surface of nano-SiO2 and properties of PLA/PLA-gra
Enhanced Formation of Stereocomplex Crystallites of High Molecular Weight Poly(L-lactide)/Poly(D-lac
Effect of graphite oxide structure on the formation of stable self-assembled conductive reduced grap
Role of gas delay time on the hierarchical crystalline structure and mechanical property of HDPE mol
Inorganic silica functionalized with PLLA chains via grafting methods to enhance the melt strength o
Extension of the orientation region of high density polyethylene molded by gas-assisted injection mo
Morphology and mechanical property of high-density polyethylene parts prepared by gas-assisted injec
Polyethylene glycol based shape-stabilized phase change material for thermal energy storage with ult
Effects of annealing on structure and deformation mechanism of isotactic polypropylene film with row
Effect of Viscosity Ratio on the Crystalline Morphologies and Mechanical Property of Multi-Melt Mult
Polymorphism of Racemic Poly(L-lactide)/Poly(D-lactide) Blend: Effect of Melt and Cold Crystallizati
Flexibility Improvement of Poly(L-lactide) by Reactive Blending With Poly(ether urethane) Containing
Composition, Morphology and Properties of Poly(lactic acid) and Poly(butylene succinate) Copolymer S
Formation of double skin-core orientated structure in injection-molded Polyethylene parts: Effects o
A high-performance temperature sensitive TPV/CB elastomeric composite with balanced electrical and m
Melt stereocomplexation from poly(L-lactic acid) and poly(D-lactic acid) with different optical puri
Transparent and ductile poly(lactic acid)/poly(butyl acrylate) (PBA) blends: Structure and propertie
Crystalline structures of poly(L-lactide) formed under pressure and structure transitions with heati
Solvent micro-evaporation and concentration gradient synergistically induced crystallization of poly
Greatly accelerated crystallization of poly(lactic acid): cooperative effect of stereocomplex crysta
期刊信息
位置：