中国烟草学报
中國煙草學報
중국연초학보
ACTA TABACARIA SINICA
2013年
1期
15-20
,共6页
宁敏%周顺%徐迎波%胡源%葛少林%王程辉%舒俊生%田振峰%王平军%周明华%陶丰%何庆
寧敏%週順%徐迎波%鬍源%葛少林%王程輝%舒俊生%田振峰%王平軍%週明華%陶豐%何慶
저민%주순%서영파%호원%갈소림%왕정휘%서준생%전진봉%왕평군%주명화%도봉%하경
燃烧%扫描电镜%热重%微燃烧量热%锥型量热仪
燃燒%掃描電鏡%熱重%微燃燒量熱%錐型量熱儀
연소%소묘전경%열중%미연소량열%추형량열의
combustion%SEM%TG%MCC%cone calorimeter
为探索物理参数对造纸法再造烟叶纸基性能的影响,利用扫描电镜和万能材料试验机研究了纸基物理参数和其形貌结构及力学性能的相关性.基于热重分析仪、微燃烧量热仪和锥形量热计,考察了物理参数改变对纸基热降解和燃烧特性的影响规律.结果表明:①透气度升高可能是导致抗张强度和断裂伸长率降低的主要原因.纸基微观结构主要是由宽长纤维和卷曲的细短纤维组成,且随着木浆含量的增加,卷曲的细短纤维所占的比例有较大升高;②纸基热降解过程主要由5个阶段组成.纸基的透气度是影响其热稳定性的主要物理参数.③在定量相同的情况下,透气度的降低能够轻微减弱纸基的易燃性和燃烧性.④透气度的升高会使得纸基在被点燃后具有更快速的烟气释放速率.⑤较高的透气度会使纸基在燃烧过程中具有较大的CO释放速率.
為探索物理參數對造紙法再造煙葉紙基性能的影響,利用掃描電鏡和萬能材料試驗機研究瞭紙基物理參數和其形貌結構及力學性能的相關性.基于熱重分析儀、微燃燒量熱儀和錐形量熱計,攷察瞭物理參數改變對紙基熱降解和燃燒特性的影響規律.結果錶明:①透氣度升高可能是導緻抗張彊度和斷裂伸長率降低的主要原因.紙基微觀結構主要是由寬長纖維和捲麯的細短纖維組成,且隨著木漿含量的增加,捲麯的細短纖維所佔的比例有較大升高;②紙基熱降解過程主要由5箇階段組成.紙基的透氣度是影響其熱穩定性的主要物理參數.③在定量相同的情況下,透氣度的降低能夠輕微減弱紙基的易燃性和燃燒性.④透氣度的升高會使得紙基在被點燃後具有更快速的煙氣釋放速率.⑤較高的透氣度會使紙基在燃燒過程中具有較大的CO釋放速率.
위탐색물리삼수대조지법재조연협지기성능적영향,이용소묘전경화만능재료시험궤연구료지기물리삼수화기형모결구급역학성능적상관성.기우열중분석의、미연소량열의화추형량열계,고찰료물리삼수개변대지기열강해화연소특성적영향규률.결과표명:①투기도승고가능시도치항장강도화단렬신장솔강저적주요원인.지기미관결구주요시유관장섬유화권곡적세단섬유조성,차수착목장함량적증가,권곡적세단섬유소점적비례유교대승고;②지기열강해과정주요유5개계단조성.지기적투기도시영향기열은정성적주요물리삼수.③재정량상동적정황하,투기도적강저능구경미감약지기적역연성화연소성.④투기도적승고회사득지기재피점연후구유경쾌속적연기석방속솔.⑤교고적투기도회사지기재연소과정중구유교대적CO석방속솔.
@@@@ Scanning electron microscopy and electronic universal testing machine were applied to investigate relationships between physical parameters, morphologic structures and mechanical properties of paper-making process reconstituted tobacco base material. Thermogravimetric, micro-scale combustion calorimetry and cone calorimetry were used to test effects of physical parameters on its thermal degradation and combustion properties. Results indicated that ① increase of permeability might be the main factor of tensile strength declining and elongation at break of paper-base. The microstructure of paper-base was mainly composed of thick and long fibers and curly thin and short fibers. Increase wood pulp content could result in big increase of relative proportion of curly thin and short fibers;②thermal degradation process of paper-base mainly includ five stages. Permeability was dominant factor that influenced thermal stability of paper-base;③compared with permeability, grammage exerted more significant influence on combustion characteristics of paper-base. When grammage was fixed, decrease of permeability could reduce slightly flammability and combustibility of paper-base;④increase of permeability could make paper-base possess higher smoke release rate after ignition;⑤relatively high permeability could also make paper-base release CO more quickly during combustion process.
