CAJ | 학술논문

用二羟甲基二乙烯脲（ DMDHEU）和糠醇（ FA）复配处理后，杨木的质量增加率为14．8％～375．％，并系统研究了改性处理对木材紫外加速老化性能的影响。光电子能谱（ XPS）分析表明，随着老化时间的增加，未处理材表面O1s数量增加，XO/XC 较老化前增加36．9％；经10％、20％和30％药液处理木材老化后表面的XO/XC 分别增加20．5％、25．5％和14．7％。红外吸收光谱（ FTIR）分析显示，老化2000 h后处理材在1700、1075 cm－1两处的吸收峰明显比未处理材弱，说明DMDHEU和 FA处理杨木能够减缓紫外光造成的老化。老化后的木材颜色都变深，未处理材的色差随着老化时间逐渐增大，处理材在开始的500 h色差迅速增加，之后趋于稳定。以上结果表明， DMDHEUF/A 处理能有效改善杨木的抗老化性能。
용이간갑기이을희뇨（ DMDHEU）화강순（ FA）복배처리후，양목적질량증가솔위14．8％～375．％，병계통연구료개성처리대목재자외가속노화성능적영향。광전자능보（ XPS）분석표명，수착노화시간적증가，미처리재표면O1s수량증가，XO/XC 교노화전증가36．9％；경10％、20％화30％약액처리목재노화후표면적XO/XC 분별증가20．5％、25．5％화14．7％。홍외흡수광보（ FTIR）분석현시，노화2000 h후처리재재1700、1075 cm－1량처적흡수봉명현비미처리재약，설명DMDHEU화 FA처리양목능구감완자외광조성적노화。노화후적목재안색도변심，미처리재적색차수착노화시간축점증대，처리재재개시적500 h색차신속증가，지후추우은정。이상결과표명， DMDHEUF/A 처리능유효개선양목적항노화성능。
We used the mixture of 1,3-dimethylol-4,5-dihydroxyethyleneurea ( DMDHEU) and furfuryl alcohol ( FA) to modify Poplar wood in weight percent gain of 14.8%-37.5%and studied the modifying effects on the artificial weathering of wood determined.By X-ray photoelectron spectroscopy (XPS), the weathering caused the increase by 36.9%in the ratio of oxy-gen /carbon on the untreated wood , but 20.5%, 25.5%and 14.7%on the wood treated with 10%, 20% and 30%of chem-ical solutions,respectively .FT-IR spectroscopy displayed that the intensities of the treated wood locating at 1 700 cm-1 and 1 075 cm-1 assigned to C=O and C-O, respectively, were weaker than those of the untreated controls after weathering of 2 000 h.The surface color of both untreated and treated wood was darker due to weathering compared to the unweathered controls.Darkening of the untreated wood proceeded gradually with the weathering time .However, darkening of the treated wood occured mainly in the initial 500 h.These results demonstrate that treatments with the mixture of DMDHEU/FA can improve the resistance to weathering .