scholarly journals Evaluation of Shear Adhesion Properties of Pressure Sensitive Adhesives Using High-Resolution Testing Apparatus

2011 ◽  
Vol 47 (8) ◽  
pp. 302-308
Author(s):  
Zenichi MIYAGI ◽  
Yusuke KONDO ◽  
Soichi SAIGA
Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3097
Author(s):  
Mónica Fuensanta ◽  
José Miguel Martín-Martínez

Thermoplastic polyurethanes (TPUs) were synthetized with blends of poly(propylene glycol) (PPG) and poly(1,4-butylene adipate) (PAd) polyols, diphenylmethane-4,4′-diisocyanate (MDI) and 1,4-butanediol (BD) chain extender; different NCO/OH ratios were used. The structure and viscoelastic properties of the TPUs were assessed by infrared spectroscopy, differential scanning calorimetry, X-ray diffraction, thermal gravimetric analysis and plate-plate rheology, and their pressure sensitive adhesion properties were assessed by probe tack and 180° peel tests. The incompatibility of the PPG and PAd soft segments and the segregation of the hard and soft segments determined the phase separation and the viscoelastic properties of the TPUs. On the other hand, the increase of the NCO/OH ratio improved the miscibility of the PPG and PAd soft segments and decreased the extent of phase separation. The temperatures of the cool crystallization and melting were lower and their enthalpies were higher in the TPU made with NCO/OH ratio of 1.20. The moduli of the TPUs increased by increasing the NCO/OH ratio, and the tack was higher by decreasing the NCO/OH ratio. In general, a good agreement between the predicted and experimental tack and 180° peel strength values was obtained, and the TPUs synthesized with PPG+PAd soft segments had potential application as pressure sensitive adhesives (PSAs).


2019 ◽  
Vol 136 (29) ◽  
pp. 47791 ◽  
Author(s):  
Shun Okada ◽  
Yusuke Kashihara ◽  
Tomoyasu Hirai ◽  
Syuji Fujii ◽  
Yoshinobu Nakamura ◽  
...  

2021 ◽  
pp. 100880
Author(s):  
Ladawan Songtipya ◽  
Ponusa Songtipya ◽  
Theerarat Sengsuk ◽  
Ekwipoo Kalkornsurapranee ◽  
Yeampon Nakaramontri ◽  
...  

2010 ◽  
Vol 297 (1) ◽  
pp. 69-78 ◽  
Author(s):  
R. Mascorro ◽  
Ma. Elena-Navarro ◽  
H. Dorantes ◽  
M. Corea

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