scholarly journals Feasibility of Processing Hot-Melt Pressure-Sensitive Adhesive (HMPSA) with Solvent in the Lab

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1608
Author(s):  
Jing Xue ◽  
Jing Wang ◽  
Haofei Huang ◽  
Ming Wang ◽  
Yali Zhang ◽  
...  
Keyword(s):  
Bond Strength ◽  
Compositional Analysis ◽  
Weight Percent ◽  
Environmentally Benign ◽  
Pressure Sensitive Adhesive ◽  
Holding Power ◽  
Pressure Sensitive ◽  
Different Types ◽  
Physical Reasons ◽  
Hot Melt

Hot-melt pressure-sensitive adhesive (HMPSA) is an environmentally benign adhesive which is typically processed without solvent in industries. However, casting solution method is commonly used for experimental purposes in the lab for convenience. Therefore, seven types of solvent with different polarities, including toluene as the most commonly used solvent, were investigated in this work to study the feasibilities. Quick bond strength and holding power were tested with different types of solvents and different adhesive weight percent in the prepared solutions. Through viscosity measurement, thermal analysis, and compositional analysis, the correlation between the chosen solvents and adhesive performance was further explored. It was found that the differences in the obtained bond strength of HMPSA treated with a variety of solvents were due to physical reasons instead of chemical reactions, and a solvent with similar polarity to toluene (e.g., tetrachloride, octane) should be considered as an option because a similar polymer chain relaxation could be maintained as the original HMPSA without solvent treatment. In this study, the mechanism of choosing toluene as common solvent for HMPSA testing was analyzed, and the feasibility of optional solvents was discussed.

scholarly journals Design of pressure-sensitive adhesive suitable for the preparation of transdermal patches by hot-melt printing

2020 ◽  
Vol 586 ◽  
pp. 119607
Author(s):  
Umberto M. Musazzi ◽  
Marco A. Ortenzi ◽  
Chiara G.M. Gennari ◽  
Antonella Casiraghi ◽  
Paola Minghetti ◽  
...  
Keyword(s):  
Pressure Sensitive Adhesive ◽  
Pressure Sensitive ◽  
Transdermal Patches ◽  
Hot Melt

Preparation and properties of polyisobutene/organic montmorillonite hot melt pressure-sensitive adhesive (HMPSA)

2019 ◽  
Vol 95 (13-14) ◽  
pp. 1134-1145
Author(s):  
Xing Peng ◽  
Yu Wang ◽  
Hui Chen ◽  
Jie Ying ◽  
Jikui Wang
Keyword(s):  
Pressure Sensitive Adhesive ◽  
Organic Montmorillonite ◽  
Pressure Sensitive ◽  
Hot Melt

Tack and shear strength of hybrid adhesive systems made of phenol-formaldehyde, dextrin and fish glue, and acrylic pressure-sensitive adhesive

Holzforschung ◽  
2012 ◽  
Vol 66 (1) ◽  
Author(s):  
Amir Sahaf ◽  
Karl Englund ◽  
Marie-Pierre G. Laborie
Keyword(s):  
Shear Strength ◽  
Bond Strength ◽  
Phenol Formaldehyde ◽  
Curing Temperature ◽  
Pressure Sensitive Adhesive ◽  
Pressure Sensitive ◽  
Initial Adhesion ◽  
The Subject ◽  
Block Test ◽  
Shear Block

Abstract The development of adhesives that have good initial adhesion (tack) that provides improved mat integrity during shape-forming of wood composites has been the subject of recent research. Hybrid adhesives were made based on thermosetting phenol-formaldehyde (PF), to which three tacky adhesives were added: high tack fish glue (FG), dextrin glue (DX) and a commercial acrylic, pressure-sensitive adhesive (PSA). Tacky adhesives were blended with PF at weight levels of 25%, 50% and 75%. The time-dependent tack development of the resulting hybrid adhesives was evaluated by means of a texture analyzer. The bond strength of adhesives was measured after curing by shear block test. PF/DX blends exhibited the highest tack during longer open times, while blends of PF and FG had low tack during shorter times. PF/PSA blends lost their bond strength completely after being heated at the curing temperature of PF. PF/FG blends did not show a significant decrease in bond strength compared to pure PF. The addition of DX had no effect on shear strength at ratios <75%.

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