CAJ | 학술논문

采用通过帚化技术去青后的慈竹竹束单板，制备了28 mm厚的竹束单板层积材，探讨了竹束去青程度对竹束单板层积材的尺寸稳定性、静曲强度、弹性模量和水平剪切强度的影响。研究结果表明：随竹束去青程度的提高，竹束表面的明度L倡呈上升趋势，红绿轴色度指数a倡和黄蓝轴色度指数b 倡增加，色差ΔE倡增大；竹束去青程度越高，竹束表面的静态接触角越小，对应制得的竹束单板层积材的尺寸稳定性越好，干态静曲强度、弹性模量和水平剪切强度变化不大或稍有减小，但经过28 h处理后的强度均表现出更小的削减；不去青对竹束单板层积材强度降低的影响是最大的；针对水平剪切强度， A、B、C、D组板材均符合GBT／20241—2006《单板层积材》标准要求，A、B、C组达到《重组竹》（报批稿）规定的9V－12H级别。
채용통과추화기술거청후적자죽죽속단판，제비료28 mm후적죽속단판층적재，탐토료죽속거청정도대죽속단판층적재적척촌은정성、정곡강도、탄성모량화수평전절강도적영향。연구결과표명：수죽속거청정도적제고，죽속표면적명도L창정상승추세，홍록축색도지수a창화황람축색도지수b 창증가，색차ΔE창증대；죽속거청정도월고，죽속표면적정태접촉각월소，대응제득적죽속단판층적재적척촌은정성월호，간태정곡강도、탄성모량화수평전절강도변화불대혹초유감소，단경과28 h처리후적강도균표현출경소적삭감；불거청대죽속단판층적재강도강저적영향시최대적；침대수평전절강도， A、B、C、D조판재균부합GBT／20241—2006《단판층적재》표준요구，A、B、C조체도《중조죽》（보비고）규정적9V－12H급별。
We employed the process of removing bamboo green and bamboo brooming , and produced Neosinocalamus affinis into laminated bamboo-bundle veneer lumber ( BLVL) with the thickness of28 mm.We studied the effect of removing bamboo green upon BLVL in dimensional stability , modulus of rupture ( MOR ) , modulus of elasticity ( MOE ) and horizontal shearing strength .The lightness ( L*) was in a rising trend with increasing degree of removed bamboo green , and the red hue ( a*) , yellow hue ( b*) and aberration (ΔE*) were enlarged .The higher degree of removed bamboo green was , the smaller contact angle of bamboo-bundle was obtained , and the better dimensional stability of corresponding BLVL was .As the degree of bamboo green removal increased , BLVL exhibited a slight decreasing value in modulus of rupture , modulus of elasticity and horizontal shearing strength before 28 hours’ treatment, while less strength reduction after 28 hours’ treat-ment .The ones without removal of bamboo green suffered most severe strength reduction .For horizontal shearing strength , A, B, C, and D veneer lumber could meet the standard requirement of GB /T 20241-2006 , and A, B and C, except for D, could reach the 9V-12H level of Bamboo scrimber standard.