Czech Zbigniew, Bartkowiak Marcin, Krystofiak Tomasz
Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland.
Department of Wood Science and Thermal Techniques, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland.
Materials (Basel). 2023 Dec 8;16(24):7563. doi: 10.3390/ma16247563.
This publication describes the influence of residue monomers in synthesized pressure-sensitive adhesives based on acrylics on their main properties-tack, peel adhesion, shear strength and shrinkage-in the form of transfer tapes used for joining wooden elements in the furniture industry. The discussed carrier-free adhesive tapes are synthesized via photo-crosslinking and photopolymerization with UV radiation of the photoreactive prepolymers sandwiched between two adhesive siliconized polyester films. The simultaneous crosslinking and polymerization processes carried out under UV lamps placed simultaneously above and below the crosslinked photoreactive polymer layer lead to the production of a carrier-free adhesive film. The preliminary target of these studies was to investigate how the intensity of UV radiation and the time of its exposure affect the viscosity of the photoreactive compositions and the content of unreacted monomers in them. Next, the influence of the crosslinking agent concentration and UV irradiation time on the content of unreacted monomers after the crosslinking process was tested. The last step of the studies was the investigation of the influence of the residue monomer concentration on the application properties of the obtained pressure-sensitive adhesive layers. The typical PSA application properties were tested on the wood samples: tack, peel adhesion, shear strength (cohesion) and shrinkage.
本出版物描述了基于丙烯酸酯的合成压敏胶中的残留单体对其主要性能——粘性、剥离粘附力、剪切强度和收缩率——的影响，这些压敏胶以转移胶带的形式用于家具行业中连接木制部件。所讨论的无载体胶带是通过夹在两个涂有粘合剂的硅化聚酯薄膜之间的光反应性预聚物在紫外线辐射下进行光交联和光聚合而合成的。在交联光反应性聚合物层上方和下方同时放置紫外线灯的情况下进行的同时交联和聚合过程，导致生产出无载体粘合剂薄膜。这些研究的初步目标是研究紫外线辐射强度及其暴露时间如何影响光反应性组合物的粘度以及其中未反应单体的含量。接下来，测试了交联剂浓度和紫外线照射时间对交联过程后未反应单体含量的影响。研究的最后一步是研究残留单体浓度对所得压敏胶层应用性能的影响。在木材样品上测试了典型的压敏胶应用性能：粘性、剥离粘附力、剪切强度（内聚力）和收缩率。
