Title: Polybenzoxazine a non-fluorinated polymer for anti-adhesion surface treatment of moulds

Authors: Yeh-Sheng Wang; Hao-Chih Hung; Chi-Hung Lee; Hsiao-Wen Hung

Addresses: The Department of Applied Chemistry, National Chiao Tung University, No. 1001, University Road, Hsinchu, 300, Taiwan ' The Department of Applied Chemistry, National Chiao Tung University, No. 1001, University Road, Hsinchu, 300, Taiwan ' Department of Electrical Engineering, Feng Chia University, No. 1001, University Road, Hsinchu, 300, Taiwan ' Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, No. 195, Sec. 4, Chung Hsing Road, Chutung, Hsinchu, 310, Taiwan

Abstract: Polybenzoxazine (PBZ), a new class of low surface free energy material, is successfully used for anti-adhesion treatment on the patterned nickel mould surface. Bis (3-allyl-3, 4-dihydro-2H-1, 3-benzoxazinyl) isopropane (B-ala) type benzoxazine is prepared and characterisation of its thermosets are also described in this article. In addition, liquid phase deposition method is used for forming B-ala PBZ anti-adhesion layer with about 60 µm trench microstructures. However, the thickness affects the trench structures seriously, which involves the pattern of translating film. Apart from this, the process of depositing PBZ is investigated by utilising different solvent and concentrations. In the meanwhile the contact angles before and after B-ala PBZ deposition are analysed to confirm the performance of anti-adhesion. The morphologies of translating films after hundreds of imprints remain nearly unchanged. The experiment results show the lifetime of the nickel mould can be improved by depositing B-ala PBZ to the surface.

Keywords: polybenzoxazine; anti-adhesion; surface treatment; roller imprint lithography; non-fluorinated polymers; surface free energy; liquid phase deposition; thermal curing; sticking effect; contact angle; patterned nickel moulds; mould surfaces; microstructure.

DOI: 10.1504/IJNM.2013.052871

International Journal of Nanomanufacturing, 2013 Vol.9 No.1, pp.1 - 9

Received: 27 Dec 2011
Accepted: 22 May 2012
Published online: 31 Mar 2014 *

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