射流等离子体处理对热处理材漆膜附着力的影响
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摘要
采用氮气射流对热处理材落叶松进行等离子体处理,研究了不同处理高度、不同处理时间对热处理材漆膜性能的影响,通过仪器测定,分析了不同等离子体处理条件下被处理材的漆膜性能变化机理,并得出本实验中改善热处理材落叶松漆膜性能的最佳等离子体处理工艺参数。结果表明:随着等离子体处理高度的降低和处理时间的延长,热处理材漆膜质量损失率降低,漆膜性能逐渐提升;等离子体处理改善热处理材漆膜性能的最佳工艺时间为20 s、高度为15 mm;等离子体处理过程中引入的大量氨基、羟基、羰基、羧基等亲水性基团是被处理材漆膜性能提升的根本原因。X射线光电子能谱分析显示,经过等离子处理后的落叶松,C元素含量降幅为12.63%,O元素和N元素增幅分别为14.32%,83.87%。FT-IR结果表明,处理后的木材表面—OH、C—H、C=O的峰的强度明显加强。因此,对热处理之后的木材进行等离子体处理,可大幅度提升其漆膜性能,从而改善产品缺陷、提高附加值。
Color is the characteristic of human visual perception,which affects the value of wood products. The color of wood surface can be changed when the wood is placed under a relatively high temperature for several hours. In this process,as the color changes,the dimensional stability also changes apparently. Apart from all described above,thanks to the chemical reaction that happens in the thermal-treatment period,the performance of finishing is affected,which is attributed to the fact that the hydrophilicity of wood surface decreases considerably. To solve the problem,discharge plasma is a useful method. In this study,the effects of different plasma treatment heights and different treatment time duration on the properties of the films were investigated by nitrogen jet. The effects of different treatment conditions on the properties of the treated materials were analyzed. And the best plasma treatment parameters were obtained in this experiment to improve the performance of larch wood film. It is found that,after the nitrogen jet treatment,the samples show a better water-wetted property,which can be shown by the results of the contact angle test.The results show that,with the decrease of the height of the plasma treatment and the prolonging of the treatment time,the loss rate of the film is reduced and the performance of the film is improved. The optimum process time of the film is improved to be 20 s,with a plasma treatment height of 15 mm. The introduction of a large number of hydrophilic groups such as amino groups,hydroxyl groups,carbonyl groups and carboxyl groups during the plasma treatment is the essential reason for the improvement of the performance of the treated film. The use of this method,namely,using plasma to treat wood that was heat-treated,can greatly enhance its film performance,thereby improving product appearance and increasing its marketing value.
Color is the characteristic of human visual perception,which affects the value of wood products. The color of wood surface can be changed when the wood is placed under a relatively high temperature for several hours. In this process,as the color changes,the dimensional stability also changes apparently. Apart from all described above,thanks to the chemical reaction that happens in the thermal-treatment period,the performance of finishing is affected,which is attributed to the fact that the hydrophilicity of wood surface decreases considerably. To solve the problem,discharge plasma is a useful method. In this study,the effects of different plasma treatment heights and different treatment time duration on the properties of the films were investigated by nitrogen jet. The effects of different treatment conditions on the properties of the treated materials were analyzed. And the best plasma treatment parameters were obtained in this experiment to improve the performance of larch wood film. It is found that,after the nitrogen jet treatment,the samples show a better water-wetted property,which can be shown by the results of the contact angle test.The results show that,with the decrease of the height of the plasma treatment and the prolonging of the treatment time,the loss rate of the film is reduced and the performance of the film is improved. The optimum process time of the film is improved to be 20 s,with a plasma treatment height of 15 mm. The introduction of a large number of hydrophilic groups such as amino groups,hydroxyl groups,carbonyl groups and carboxyl groups during the plasma treatment is the essential reason for the improvement of the performance of the treated film. The use of this method,namely,using plasma to treat wood that was heat-treated,can greatly enhance its film performance,thereby improving product appearance and increasing its marketing value.
引文
[1]马伟,强添纲,郭明辉.高温热处理对落叶松仿珍贵木材颜色变化的影响[J].东北林业大学学报,2016,44(12):37-41.MA W,QIANG T G,GUO M H.Effect of high temperature heat treatment on color change of imitate precious wood of larch[J].Journal of Northeast Forestry University,2016,44(12):37-41.
[2]李贤军,傅峰,蔡智勇,等.高温热处理对木材吸湿性和尺寸稳定性的影响[J].中南林业科技大学学报,2010,30(6):92-96.LI X J,FU F,CAI Z Y,et al.The effect of high temperature thermal treatment on moisture absorption and dimension stability of wood[J].Journal of Central South University of Forestry,2010,30(6):92-96.
[3]邓邵平,陈寒娴,林金春,等.高温热处理人工林杉木木材的材色和涂饰性能[J].福建农林大学学报(自然科学版),2010,39(5):484-489.DENG S P,CHEN H X,LIN J C,et al.Effects of high temperature heat treatment on the color and painting properties of Chinese fir plantation wood[J].Journal of Fujian Agriculture and Forestry University(Natural Science Edition),2010,39(5):484-489.
[4]何华.家具用纤维板表面性能及其对漆膜附着力影响的研究[D].长沙:中南林业科技大学,2006.HE H.The research on surface performance of furniture fibreboard and film adhesion[D].Changsha:Central South Forestry University,2006.
[5]王能友.包装漆膜附着力的检测与分析[J].中国包装工业,2005(4):52-53.WANG N Y.Inspection and analysis of packaging film adhesion[J].China Packaging Industry,2005(4):52-53.
[6]马东超,郭明辉.氮气射流低温等离子体处理对落叶松表面润湿性的影响[J].东北林业大学学报,2016(4):69-73.MA D C,GUO M H.Effect of wettability of larch surface treated by Nitrogen gas cold atmospheric plasma jet[J].Journal of Northeast Forestry University,2016(4):69-73.
[7]阮氏凤,曹倚中,周晓燕,等.等离子体处理对杨木单板层积材性能的影响[J].林业工程学报,2016,1(5):26-30.NGUYEN T,CAO Y Z,ZHOU X Y,et al.Effect of plasma treatment on properties of poplar LVL[J].Journal of Forestry Engineering,2016,1(5):26-30.
[8]崔会旺,杜官本.我国木材功能性改良研究进展[J].林产工业,2007,34(6):3-7.CUI H W,DU G B.Research advance on functional improvements of wood in China[J].China Forest Products Industry,2007,34(6):3-7.
[9]高志强,郭飞,吕建雄,等.热处理对马尾松木材漆膜附着力的影响[J].林业机械与木工设备,2016,44(1):29-33.GAO Z Q,GUO F,LV J X,et al.Effect of heat treatment on adhesion of wood coatings of masson pine[J].Forestry Machinery and Woodworking Equipment,2016,44(1):29-33.
[10]李慧敏,吴智慧,闫小星,等.环氧树脂改性UV生漆油墨的漆膜性能[J].林业工程学报,2016,1(5):146-151.LI X M,WU Z H,YAN X X,et al.Study on film performance of UV lacquer ink modified by epoxy resin[J].Journal of Forestry Engineering,2016,1(5):146-151.
[11]刘玮.高性能有机硅增硬耐磨涂料的研制[D].保定:河北大学,2005.LIU W.The study and compound of organosilyl hard coating for abrasion wear-resistant[D].Baoding:Hebei University,2005.
[12]BOENIG H V.Fundamentals of plasma chemistry and technology[M].Lancaster:Technomic Pub.Co.,1988.
[13]SCHUTZE A,JEONG J Y,BABAYAN S E,et al.The atmospheric-pressure plasma jet:a review and comparison to other plasma sources[J].IEEE Transactions on Plasma Science,1998,26(6):1685-1694.
[14]袁炳楠,董悦,郭明辉.木材表面g-C3N4的固定及其光降解性能表征[J].南京林业大学学报(自然科学版),2018,42(1):1-6.YUAN B N,DONG Y,GUO M H.Immobilized of g-C3N4on wood surface and characterization of its photodegradation property[J].Journal of Nanjing Forestry University(Natural Sciences Edition),2018,42(1):1-6.
[15]张洋,周兆兵,袁少飞,等.速生杨树木材表面的动态润湿性能和自由能研究[J].南京林业大学学报(自然科学版),2008,32(1):49-52.ZHANG Y,ZHOU Z B,YUAN S F,et al.Study on the surface dynamic wettability and free energy of poplar[J].Journal of Nanjing Forestry University(Natural Sciences Edition),2008,32(1):49-52.
[2]李贤军,傅峰,蔡智勇,等.高温热处理对木材吸湿性和尺寸稳定性的影响[J].中南林业科技大学学报,2010,30(6):92-96.LI X J,FU F,CAI Z Y,et al.The effect of high temperature thermal treatment on moisture absorption and dimension stability of wood[J].Journal of Central South University of Forestry,2010,30(6):92-96.
[3]邓邵平,陈寒娴,林金春,等.高温热处理人工林杉木木材的材色和涂饰性能[J].福建农林大学学报(自然科学版),2010,39(5):484-489.DENG S P,CHEN H X,LIN J C,et al.Effects of high temperature heat treatment on the color and painting properties of Chinese fir plantation wood[J].Journal of Fujian Agriculture and Forestry University(Natural Science Edition),2010,39(5):484-489.
[4]何华.家具用纤维板表面性能及其对漆膜附着力影响的研究[D].长沙:中南林业科技大学,2006.HE H.The research on surface performance of furniture fibreboard and film adhesion[D].Changsha:Central South Forestry University,2006.
[5]王能友.包装漆膜附着力的检测与分析[J].中国包装工业,2005(4):52-53.WANG N Y.Inspection and analysis of packaging film adhesion[J].China Packaging Industry,2005(4):52-53.
[6]马东超,郭明辉.氮气射流低温等离子体处理对落叶松表面润湿性的影响[J].东北林业大学学报,2016(4):69-73.MA D C,GUO M H.Effect of wettability of larch surface treated by Nitrogen gas cold atmospheric plasma jet[J].Journal of Northeast Forestry University,2016(4):69-73.
[7]阮氏凤,曹倚中,周晓燕,等.等离子体处理对杨木单板层积材性能的影响[J].林业工程学报,2016,1(5):26-30.NGUYEN T,CAO Y Z,ZHOU X Y,et al.Effect of plasma treatment on properties of poplar LVL[J].Journal of Forestry Engineering,2016,1(5):26-30.
[8]崔会旺,杜官本.我国木材功能性改良研究进展[J].林产工业,2007,34(6):3-7.CUI H W,DU G B.Research advance on functional improvements of wood in China[J].China Forest Products Industry,2007,34(6):3-7.
[9]高志强,郭飞,吕建雄,等.热处理对马尾松木材漆膜附着力的影响[J].林业机械与木工设备,2016,44(1):29-33.GAO Z Q,GUO F,LV J X,et al.Effect of heat treatment on adhesion of wood coatings of masson pine[J].Forestry Machinery and Woodworking Equipment,2016,44(1):29-33.
[10]李慧敏,吴智慧,闫小星,等.环氧树脂改性UV生漆油墨的漆膜性能[J].林业工程学报,2016,1(5):146-151.LI X M,WU Z H,YAN X X,et al.Study on film performance of UV lacquer ink modified by epoxy resin[J].Journal of Forestry Engineering,2016,1(5):146-151.
[11]刘玮.高性能有机硅增硬耐磨涂料的研制[D].保定:河北大学,2005.LIU W.The study and compound of organosilyl hard coating for abrasion wear-resistant[D].Baoding:Hebei University,2005.
[12]BOENIG H V.Fundamentals of plasma chemistry and technology[M].Lancaster:Technomic Pub.Co.,1988.
[13]SCHUTZE A,JEONG J Y,BABAYAN S E,et al.The atmospheric-pressure plasma jet:a review and comparison to other plasma sources[J].IEEE Transactions on Plasma Science,1998,26(6):1685-1694.
[14]袁炳楠,董悦,郭明辉.木材表面g-C3N4的固定及其光降解性能表征[J].南京林业大学学报(自然科学版),2018,42(1):1-6.YUAN B N,DONG Y,GUO M H.Immobilized of g-C3N4on wood surface and characterization of its photodegradation property[J].Journal of Nanjing Forestry University(Natural Sciences Edition),2018,42(1):1-6.
[15]张洋,周兆兵,袁少飞,等.速生杨树木材表面的动态润湿性能和自由能研究[J].南京林业大学学报(自然科学版),2008,32(1):49-52.ZHANG Y,ZHOU Z B,YUAN S F,et al.Study on the surface dynamic wettability and free energy of poplar[J].Journal of Nanjing Forestry University(Natural Sciences Edition),2008,32(1):49-52.