scholarly journals Improved adhesion properties of natural rubber-based pressure-sensitive adhesives by incorporating particulate fillers

2021 ◽  
pp. 100880
Author(s):  
Ladawan Songtipya ◽  
Ponusa Songtipya ◽  
Theerarat Sengsuk ◽  
Ekwipoo Kalkornsurapranee ◽  
Yeampon Nakaramontri ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Adhesion Properties ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive

scholarly journals Active Bio-Based Pressure-Sensitive Adhesive Based Natural Rubber for Food Antimicrobial Applications: Effect of Processing Parameters on Its Adhesion Properties

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 199
Author(s):  
Theerarat Sengsuk ◽  
Ponusa Songtipya ◽  
Ekwipoo Kalkornsurapranee ◽  
Jobish Johns ◽  
Ladawan Songtipya
Keyword(s):  
Natural Rubber ◽  
Shelf Life ◽  
Aluminum Foil ◽  
Processing Parameters ◽  
Main Process ◽  
Pressure Sensitive Adhesive ◽  
Cinnamon Oil ◽  
Adhesion Properties ◽  
Pressure Sensitive ◽  
Process Factors

A novel active bio-based pressure-sensitive adhesive incorporating cinnamon oil (Bio-PSA/CO) obtained from the mixture of natural rubber (NR), xyloglucan (XG), and cinnamon oil (CO) for food antimicrobial applications were successfully developed by using a two-roll mill mixer. The effect of the main process factors (i.e., nip gap and mastication time) and XG content on the adhesion properties of the obtained PSA were investigated with different coated substrates including kraft paper, nylon film, polypropylene (PP) film, and aluminum foil (Al). The results suggested that the developed NR-PSA/CO could be applied well to all types of substrate materials. Peel strength and shear strength of the NR-PSA/CO with all substrate types were in the ranges of ~0.03 × 102–5.64 × 102 N/m and ~0.24 × 104–9.50 × 104 N/m2, respectively. The proper processed condition of the NR-PSA/CO was represented with a nip gap of 2 mm and a mastication time of 15 min. An increase in XG content up to 40–60 phr can improve the adhesion properties of the adhesive. The resulting material could be used as an active sticky patch to extend the shelf-life of food in a closed packaging system. The shelf-life of the food samples (banana cupcake) could be extended from 4 to 9 days with NR-PSA/CO patch.

scholarly journals Structural and Viscoelastic Properties of Thermoplastic Polyurethanes Containing Mixed Soft Segments with Potential Application as Pressure Sensitive Adhesives

Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3097
Author(s):  
Mónica Fuensanta ◽  
José Miguel Martín-Martínez
Keyword(s):  
Phase Separation ◽  
Potential Application ◽  
Viscoelastic Properties ◽  
Gravimetric Analysis ◽  
Scanning Calorimetry ◽  
Adhesion Properties ◽  
Pressure Sensitive Adhesives ◽  
Thermoplastic Polyurethanes ◽  
Pressure Sensitive ◽  
Soft Segments

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).

Adhesion properties of polyacrylic block copolymer pressure‐sensitive adhesives and analysis by pulse NMR and AFM force curve

2019 ◽  
Vol 136 (29) ◽  
pp. 47791 ◽  
Author(s):  
Shun Okada ◽  
Yusuke Kashihara ◽  
Tomoyasu Hirai ◽  
Syuji Fujii ◽  
Yoshinobu Nakamura ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Force Curve ◽  
Adhesion Properties ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive

Rheological and adhesion properties of acrylic pressure-sensitive adhesives

2010 ◽  
Vol 120 (1) ◽  
pp. 411-418 ◽  
Author(s):  
S. Mojtaba Taghizadeh ◽  
Diba Ghasemi
Keyword(s):  
Adhesion Properties ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive
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