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本文初步探索了用电缆行业使用的KFG-1型高频高压电子加速器对云南本地木材进行电子束辐射增强改性的工艺,并对所得改性木材的力学性能和吸水性进行了表征.结果表明,含有40%~150%的苯乙烯和甲基丙烯酸甲酯单体的浸渍木材,经过辐射前热处理再用37~100KGY辐射剂量的电子束辐射,可制备出增强改性木材,其硬度和抗压强度较原木材提高50%~100%,一昼夜吸水率可降至原木材的10%~30%;辐射剂量、改性单体对改性剂在改性木材中的固着率及改性木材的力学性能和吸水性均有一定的影响.
This paper initially explores the technology of enhanced local electron beam irradiation modification of local wood in Yunnan by using KFG-1 high-frequency and high-voltage electron accelerator used in the cable industry, and characterizes the mechanical properties and water absorption of the modified wood. The results show that the impregnated wood containing 40% ~ 150% styrene and methyl methacrylate monomer can be prepared by enhanced electron beam irradiation after pre-irradiation heat treatment and electron beam irradiation with 37 ~ 100KGY radiation. The hardness And compressive strength than the original wood increased by 50% to 100%, a day and night water absorption can be reduced to 10% of the original timber 30%; radiation dose, modified monomer modified wood in the modified rate of fixation and change Sexual wood mechanical properties and water absorption have a certain impact.