weight fraction

When the PPG ′ s molecular weight is 1 000 and the mass fraction of PUP is 15%, the integrity mechanical property of the modified material is improved obviously. Its tensile strength is 69.39 MPa and its impact strength is 23.56 kJ/ m2.

当PPG分子量为1000，PUP质量分数为15%时，改性材料的拉伸强度达到69.39MPa，冲击强度达到23.56kJ/m2，力学综合性能显著提高。

Thickening Process and Mechanism of Monolayer of Lamellar Crystals of A Low Molecular Weight Poly ( ethylene oxide) Fraction on Solid Surface

低分子量聚氧化乙烯单层片晶增厚生长的过程和机理研究

The effect of the end group on the weight fraction of the individual mono-disperse species both for the experimental UV response data and the theoretical distribution function was discussed.

讨论了端基对实验的紫外吸收响应以及理论的链长分布函数中各个半分散组分重量分数的影响。