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Rapid fabrication of microstructure on PMMA substrate by the plate to plate Transition‐Spanning isothermal hot embossing method nearby glass transition temperature
Author(s) -
Wu Daming,
Sun Jingyao,
Liu Ying,
Yang Zhenzhou,
Xu Hong,
Zheng Xiuting,
Gou Pengsheng
Publication year - 2017
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24408
Subject(s) - embossing , materials science , isothermal process , mold , composite material , substrate (aquarium) , fabrication , glass transition , polymer , thermodynamics , physics , alternative medicine , pathology , medicine , oceanography , geology
Generally, the hot embossing cycle time for fabricating microfeatures on the surface of polymer takes no <10 min because the mold needs to be firstly heated to 10–40°C above T g and then cooled to temperature below T g after certain time of holding pressing force. In this article, the Plate to Plate (P2P) Transition‐Spanning Isothermal Hot Embossing method was proposed, specific of which was relatively short embossing cycle time of 15–60 s by setting and holding constant mold temperature in a narrow temperature interval around T g in whole cycle of embossing substrate of PMMA. The experiment hot embossing device satisfied the needs of isothermal embossing process was designed and built up, on which the micro V‐cut array with a pitch of 49 µm was successfully fabricated on the PMMA substrate. The experiments gave a confirmation of possibility for fabricating microfeatures by P2P Transition‐Spanning Isothermal Hot Embossing method. POLYM. ENG. SCI., 57:268–274, 2017. © 2016 Society of Plastics Engineers