Waterborne polyurethane-silanized CoFe2O4-acrylate magnetic pressure-sensitive adhesive. Issue 16 (1st November 2016)

• Record Type: Journal Article
• Authors: Fu, Heqing; Chen, Weifeng; Li, Xiaoya; Wang, Rong
• Is Part Of: International journal of polymeric materials. Volume 65:Issue 16(2016)
• Page Start: 826
• Page End: 834
• Publication Date: 2016-11-01
• Subjects: Dynamic mechanic properties -- magnetic properties -- polyurethane -- pressure-sensitive adhesive -- silanized CoFe2O4; Polymers -- Periodicals; Plastics -- Periodicals; 620.19205
• DOI: 10.1080/00914037.2016.1163567
• Languages: English
• ISSNs: 0091-4037

Abstract

ABSTRACT: A novel waterborne polyurethane-silanized CoFe2 O-acrylate magnetic pressure-sensitive adhesive was prepared. With the increase of PU content, gel content, swelling capability, and SAFT increased, and fracture energy increased first, then decreased. The T-peeling strength increased from 8.93 to 19.07 N · m −1, tack force increased from No.3 to No.10, while shear resistance increased from 35 to 72 h, and then they decreased. Two empirical models: WA = 90.46 + 125.04[PU]-319.96[PU] 2 and T = 9.09 + 96.07[PU]-235.11[PU] 2, were obtained. With the increase of CoFe2 O4 content, the saturation magnetization increased from 5.5 to 14.2 emu · g −1, and remanence increased from 1.7 to 3.7 emu · g −1, while coercivity decreased from 875 to 763 Oe. GRAPHICAL ABSTRACT: