SURFACE ANALYSIS OF ALKALINE PEROXIDE MODIFIED JACK PINE TMP LONG FIBERS BY XPS
It is known that TMP long fibers have excellent fiber morphology, but have poor bonding strength. Alkaline peroxide (AP) treatment can effectively improve the bonding ability of TMP long fibers. In order to further understand the reason for strength improvement, X-Ray Photoelectron Spectroscopy (XPS) was used to analyze the chemical components in the surface of AP treated jack pine TMP long fibers. The result showed that both C1s and O1s peak areas of long fibers increased to certain extent after AP modification, especially O1s peak areas. It indicated that the carbohydrate contents of long fiber surface increased. At the same time, O/C ratio of treated long fibers surface had a little increase to 0.516 from untreated 0.489, but it slowed down with the increase of hydrogen peroxide or sodium hydroxide charge. In addition, beating could conduct the increase of O/C ratio of untreated and treated long fiber surface, especially the later increased to 0.569 from unbeated 0.516. But as the beating continues, its increasing speed became slow too. It is concluded that AP process followed reasonable beating could obtain a better bonding strength for jack pine TMP long fibers. The change of chemical components in the surface during AP modification and beating was only one of the reasons for strength improvement. The increase of specific surface areas and carboxyl contents should play a more important role on them.
sodium hydroxide hydrogen peroxide TMP X-ray photoelectron spectroscopy (XPS)
Han Ying Xia Xiaoming Kwei-Nam Law Robert Lanouette
The College of Chemical & Material, Dalian Polytechnic University, Dalian 116034, China Centre intégré en Pates et Papiers, Université du Québec à Trois-Rivières
国际会议
广州
英文
149-152
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）