Relating the molecular structure and crystallization behavior of polypropylene


Autoria(s): Chen JF; Yin L; Yang XN; Zhou EL
Data(s)

2004

Resumo

The crystallization behavior of two polypropylene (PP) resins as used for biaxially oriented polypropylene (BOPP) and general injection mold applications, respectively, has been intensively investigated and compared by means of polarized light optical micrography (POM), differential scanning calorimetry (DSC), conventional transmission electron microscopy (TEM), and high resolution transmission electron microscopy (HRTEM). It is found that both molecular weight distribution and isotacticity of polypropylene strongly affect its crystallization characteristics, e.g., the number of crystal nuclei at the initial stage, crystallization dynamics, the morphology, size and perfection of crystals in the final product, and so on. The results indicate an appropriate molecular structure is vital in producing high-quality BOPP film.

Identificador

http://ir.ciac.jl.cn/handle/322003/15117

http://www.irgrid.ac.cn/handle/1471x/150866

Idioma(s)

英语

Fonte

Chen JF;Yin L;Yang XN;Zhou EL.Relating the molecular structure and crystallization behavior of polypropylene,POLYMER ENGINEERING AND SCIENCE,2004,44(9):1749-1754

Palavras-Chave #ISOTACTIC POLYPROPYLENE #ELECTRON-MICROSCOPY #ORIENTATION #ALPHA
Tipo

期刊论文