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Polymers (Basel)

Title:		Adhesion Improvement of Solvent-Free Pressure-Sensitive Adhesives by Semi-IPN Using Polyurethanes and Acrylic Polymers
Author(s):		Park KH; Lee DY; Yoon SH; Kim SH; Han MS; Jeon S; Kim Y; Lim YK; Hwang DH; Jung SH; Lim B;
Address:		"Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Korea. Department of Chemistry, and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea. Think Top Technology (TTT), R&D Center, Cheonan 31245, Korea"
Journal Title:		Polymers (Basel)
Year:		2022
Volume:		20220922
Issue:		19
Page Number:		-
DOI:		10.3390/polym14193963
ISSN/ISBN:		2073-4360 (Electronic) 2073-4360 (Linking)
Abstract:		"To improve the peel strength and holding time of polypropylene glycol (PPG)-based pressure-sensitive adhesives (PSAs), a semi-interpenetrating polymer network (semi-IPN) was prepared using acrylic polymers. In addition, to prevent air pollution due to volatile organic compound emissions and avoid the degradation of physical properties due to a residual solvent, the PPG-based semi-IPN PSAs were fabricated by an eco-friendly solvent-free method using an acrylic monomer instead of an organic solvent. PPG-based semi-IPN PSAs with different hard segment contents (2.9-17.2%) were synthesized; their holding time was found to depend on the hard segment contents. The peel strength was improved because of the formation of the semi-IPN structure. Moreover, the high degree of hard domain formation in the semi-IPN PSA, derived from the increase in the hard segment content using a chain extender, resulted in a holding time improvement. We believe that the as-prepared PSAs can be used in various applications that require high creep resistance"
Keywords:		Ipn Ppg creep hard segment holding time pressure-sensitive adhesives solvent-free;
Notes:		"PubMed-not-MEDLINEPark, Kwang Hun Lee, Dong Yeob Yoon, Sung Ha Kim, Seong Hun Han, Min Su Jeon, Seungju Kim, Yejin Lim, Yong Kwan Hwang, Do-Hoon Jung, Seo-Hyun Lim, Bogyu eng 20013248/Ministry of Trade, Industry and Energy/ Switzerland 2022/10/15 Polymers (Basel). 2022 Sep 22; 14(19):3963. doi: 10.3390/polym14193963"