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Influence of annealing temperature on the lamellar and connecting bridge structure of stretched polypropylene microporous membrane
Author(s) -
Qi Cai,
Ruijie Xu,
Shuqiu Wu,
Changbin Chen,
Haibin Mo,
Caihong Lei,
Liangbin Li,
Li Zhihong
Publication year - 2015
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4828
Subject(s) - lamellar structure , materials science , differential scanning calorimetry , annealing (glass) , lamella (surface anatomy) , recrystallization (geology) , microporous material , composite material , membrane , crystallography , amorphous solid , chemistry , thermodynamics , biochemistry , paleontology , physics , biology
Annealing leads to a difference of lamellar structure: the initial lamellae are improved due to melting and recrystallization and some weak secondary crystals are formed in the amorphous region. Schematic representation showing the microstructural changes of films before and after stretching, annealed at 105 and 145 °C.