Structure and adhesion properties of linear low-density polyethylene powders grafted with acrylic acid via ultraviolet light

2006 ◽  
Vol 100 (3) ◽  
pp. 2549-2553 ◽  
Author(s):  
Jingxin Lei ◽  
Jun Gao ◽  
Lingbo Jiang
2001 ◽  
Vol 80 (13) ◽  
pp. 2538-2544 ◽  
Author(s):  
H. L. Huang ◽  
Z. H. Yao ◽  
J. H. Yang ◽  
Y. Wang ◽  
D. A. Shi ◽  
...  

2014 ◽  
Vol 1025-1026 ◽  
pp. 615-620 ◽  
Author(s):  
Martin Bednarik ◽  
David Manas ◽  
Miroslav Manas ◽  
Michal Stanek ◽  
Jan Navratil ◽  
...  

In this study there was found that ionizing beta radiation increased the strength of bonded joints and improved the adhesion properties of linear low – density polyethylene (LLDPE). Generally, for the formation of quality bonded joint it is important to wet the adhesive bonding surface well. Wettability is characterized by the contact angle of wetting. The liquid has to have a lower surface tension than the solid in order to be able to wet the solid substance. The measurement results indicated that ionizing beta radiation was a very effective tool for the improvement of adhesive properties and increased the strength of bonded joints of linear low – density polyethylene. Bonded surfaces with ionizing beta radiation doses of 0, 66, 132 and 198 kGy were irradiated. The best results were achieved by irradiation at dose of 132 kGy by which the highest surface energy and the highest strength of bonded joints of LLDPE were achieved. The strength of bonded joints after irradiation was increased up to 60 % compared to untreated material. A similar trend was observed even for contact angle of wetting and surface energy.


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