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ID:35002098
大小:1.13 MB
页数:4页
时间:2019-03-15
《重组竹阻燃处理工艺》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、林业工程学报,2016,1(1):51-54JournalofForestryEngineeringDoi:10.13360/j.issn.2096-1359.2016.01.010重组竹阻燃处理工艺杜春贵,魏金光,金春德(浙江农林大学工程学院,浙江省木材科学与技术重点实验室,临安311300)摘要:为研制阻燃性能优异的重组竹,采用常压浸渍法对竹束进行阻燃处理,研究阻燃处理工艺对竹束载药率和重组竹物理力学性能的影响。结果表明:竹束载药率随着浸渍处理时间的延长和阻燃剂的质量分数的增大而增大;阻燃重组竹的含水率和24h吸水厚度
2、膨胀率大于未阻燃重组竹,且随着浸渍处理时间的延长和阻燃剂质量分数的增大而增大;阻燃重组竹的内结合强度和静曲强度低于未阻燃重组竹,且随着浸渍处理时间的延长和阻燃剂质量分数的增大逐渐降低。综合评判,竹束浸渍处理的较佳时间为120min,阻燃剂的质量分数不宜大于30%。关键词:重组竹;阻燃性能;浸渍处理;工艺优化中图分类号:TS653文献标志码:A文章编号:2096-1359(2016)01-0010-04FireretardanttreatmentprocessofbambooscrimberDUChungui,WEIJing
3、uang,JINChunde(SchoolofEngineering,LaboratoryofWoodScienceandTechnology,ZhejiangA&FUniversity,Lin?an311300,Zhejiang,China)Abstract:Inrecentyears,thebambooscrimberhasbeenwidelyusedinconstructionanddecoration.Sincebambooscrimberisacombustiblematerial,thefireriskalso
4、increaseswiththeincreaseofitsusage.Itisthereforenecessarytodevelopthefire⁃retardingbambooscrimber.Inordertodevelopthebambooscrimberwithexcellentfire⁃resistantproper⁃ties,thefire⁃retardingbambooscrimberwasmanufacturedbyatmosphericimpregnationmethod.Theresultsshowed
5、thattheretentionofbamboobundlesincreasedwiththeincreaseofimpregnationtimeandmassfractionoffireretardant.A⁃mongthem,theeffectofmassfractionoffireretardantwasmoresignificant.Whenthemassfractionoffireretardantwasmorethan30%,itwouldbeseparatedfromthesurfaceofthebamboo
6、bundlesandnotconducivetotheproductionofthefire⁃retardingbambooscrimber.Themoisturecontentand24hthicknessswellingofthefire⁃retardingbambooscrimberswerehigherthanthoseofthecontrolbambooscrimbers,andtheyincreasedwiththeincreaseofimpregnationtimeandmassfractionoffirer
7、etardant.Theinternalbondandmodulusofruptureofthefire⁃retardingbambooscrimberswerelow⁃erthanthoseofthecontrolbambooscrimbers,andtheydecreasedgraduallywiththeincreaseofimpregnationtimeandmassfractionoffireretardant.Theeffectofmassfractionoffireretardantwasremarkable
8、onthephysicalandmechanicalpropertiesofbambooscrimbers.Theoptimalimpregnationtimewas120min,andthemassfractionoffireretardantshouldnotexceed30%.Keywords:b
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