摘要
重组竹加工工艺软化处理至关重要。试验选择四川省绵竹地区生产的2~3龄楠竹、斑竹、水竹、白夹竹和苦竹5竹材,经过15%N aOH、15%KOH、40%尿素、25%氨水浸泡和水煮软化处理,测其含水率、横纹和顺纹抗压强度。结果是常用的热水煮、尿素和氨水等软化效果不如用强碱溶液如N aOH溶液或KOH溶液软化效果好。由于强碱溶液可以溶解和破坏竹材内部很多物质而降低竹材的产品质量。因此,在竹产品加工之前应考虑竹种原有抗碱性是否强以及竹产品对韧性要求程度来选择软化方法。
Softening treatment process of bamboo is crucial.Phyllostachys heterocyda cv.pubescens,Ph.bambusoides f.lacrimadoae,Ph.heteroclada f.heteroclada,Ph.nidularia and pleioblastus amarus var. amarus from Mianzhu area of Sichuan province,which were 2-3 years old,were softened by 15% sodium hydroxide,15% potassium hydroxide,40% urea,25% ammonia and water immersion.Then water content,compression strength cross perpendicular and parallel to grain were measured.The results showed that softening effect of alkali solut...
出处
《竹子研究汇刊》
北大核心
2009年第3期42-45,共4页
Journal of Bamboo Research
基金
国家"十一五"科技支撑计划课题"以竹代木高效利用关键技术装备研究与开发"(2006BAD11A16)
关键词
软化处理
含水率
横纹抗压强度
顺纹抗压强度
Softening treatment
Water content
Compression strength perpendicular to grain
Compression strength parallel to grain
