方案摘要
方案下载应用领域 | |
检测样本 | |
检测项目 | |
参考标准 |
A novel citric acid (CA)–glycerol co-plasticized thermoplastic starch (CGTPS) was prepared by melt blending. The CA content varies from 10% to 40 wt%. Result from Fourier Transform Infrared spectroscopy (FTIR) show that partial esterification occurred during blending. The degrees of substitution and esterification increased as the CA content increased. Results from intrinsic viscosity measurement, laser light scattering (LLS), and FTIR demonstrate the molecular weight of starch decreased as the CA percentage increased. The weight average molecular weight (Mw) of CGTPS with 20 wt% CA was only one-tenth of that without CA under the same processing conditions. Crystal type and crystallinity changes as a function of CA were recorded by X-ray diffraction (XRD). Thermal stability and the glass transition temperature (Tg) were detected by thermogravimetric (TG) and differential scanning calorimeter (DSC). Compared to the traditional GTPS, the novel CGTPS exhibits the special characters of partial esterification, low molecular weight and stronger interaction between starch and plasticizers. These new properties can be expected to prevent retrogradation, promote compatibility with polyesters, improve the processing ability, and adjust the degradation properties.
NanoBrook产品应用-12-ZetaPALS
NanoBrook产品应用-16-ZetaPALS
相关产品
NanoBrook 173Plus多角度粒度分析仪
布鲁克海文高灵敏Zeta电位分析仪ZetaPALS
布鲁克海文Zeta电位分析仪 ZetaPlus
布鲁克海文(Brookhaven)多角度粒度分析仪173Pl
EyeTech 激光光阻粒度粒形分析仪
布鲁克海文 多角度粒度及高灵敏Zeta电位分析仪 Omni
布鲁克海文高灵敏度Zeta电位及粒度分析仪90Plus PALS
布鲁克海文Zeta电位及激光粒度分析仪90Plus Zeta
布鲁克海文激光粒度仪90Plus
布鲁克海文广角动/静态激光散射仪BI-200SM
布鲁克海文多角度激光光散射(绝对分子量测定)仪MwA
布鲁克海文圆盘式离心/沉降粒度仪
布鲁克海文高灵敏在线粒度分析仪NanoDLS
布鲁克海文ACOS实时在线粒度检测系统
高浓度粒度分析仪
关注
拨打电话
留言咨询