Effect of humidity and temperature on the adhesive strength of pressure sensitive adhesives

Juey H. Lai; Curtis Knudson; Leander Hallgren; Richard B. Douglas; Patrick Griffin

doi:10.1002/pen.760251209

Effect of humidity and temperature on the adhesive strength of pressure sensitive adhesives

Polymer Engineering & Science ◽

10.1002/pen.760251209 ◽

1985 ◽

Vol 25 (12) ◽

pp. 778-781 ◽

Cited By ~ 3

Author(s):

Juey H. Lai ◽

Curtis Knudson ◽

Leander Hallgren ◽

Richard B. Douglas ◽

Patrick Griffin

Keyword(s):

Adhesive Strength ◽

Pressure Sensitive Adhesives ◽

Pressure Sensitive

Download Full-text

Microstructured Polymer Adhesive Feet for Climbing Robots

MRS Bulletin ◽

10.1557/mrs2007.85 ◽

2007 ◽

Vol 32 (6) ◽

pp. 504-508 ◽

Cited By ~ 10

Author(s):

Kathryn A. Daltorio ◽

Stanislav Gorb ◽

Andrei Peressadko ◽

Andrew D. Horchler ◽

Terence E. Wei ◽

...

Keyword(s):

Adhesive Strength ◽

Walking Robot ◽

Climbing Robots ◽

Pressure Sensitive Adhesives ◽

Pressure Sensitive ◽

Polymer Adhesive ◽

Glass Surfaces ◽

Small Robot

AbstractNovel insect-foot–inspired materials may enable future robots to walk on surfaces regardless of the direction of gravity. Mini-Whegs™, a small robot that uses four wheel-legs for locomotion, was converted to a wall-walking robot with compliant, adhesive feet. First, the robot was tested with conventional adhesive feet. Then a new, reusable insect-inspired adhesive was tested on the robot. This structured polymer adhesive has less adhesive strength than conventional pressure-sensitive adhesives, but it has two important advantages: the foot material maintains its properties for more walking cycles before becoming contaminated, and the feet can then be washed and reused with similar results, which is not feasible with conventional adhesives. After the addition of a tail and widening the feet, the robot is capable of ascending vertical smooth glass surfaces using the structured polymer adhesive.

Download Full-text

Passivation of pressure sensitive adhesive stickies by addition of acrylic fibers to OCC pulp before papermaking

TAPPI Journal ◽

10.32964/tj15.10.631 ◽

2016 ◽

Vol 15 (10) ◽

pp. 631-639

Author(s):

MOHAMMAD HADI ARYAIE MONFARED ◽

HOSSEIN RESALATI ◽

ALI GHASEMIAN ◽

MARTIN A. HUBBE

Keyword(s):

Adverse Effects ◽

Control Sample ◽

Pressure Sensitive Adhesive ◽

Acrylic Fiber ◽

Burst Strength ◽

Pressure Sensitive Adhesives ◽

Pressure Sensitive ◽

Tear Index ◽

Breaking Length ◽

Acrylic Fibers

This study investigated the addition of acrylic fiber to old corrugated container (OCC) pulp as a possible means of overcoming adverse effects of water-based pressure sensitive adhesives during manufacture of paper or paperboard. Such adhesives can constitute a main source of stickies, which hurt the efficiency of the papermaking process and make tacky spots in the product. The highest amount of acrylic fiber added to recycled pulps generally resulted in a 77% reduction in accepted pulp microstickies. The addition of acrylic fibers also increased pulp freeness, tear index, burst strength, and breaking length, though there was a reduction in screen yield. Hence, in addition to controlling the adverse effects of stickies, the addition of acrylic fibers resulted in the improvement of the mechanical properties of paper compared with a control sample.

Download Full-text