| 陈思瑶,肖玉英,储生泽,任俊莉,李赛男,梁国华,刘颖.4种松科木材的纤维形态及理化性能研究[J].中国造纸,2025,44(11):37-43 |
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| 4种松科木材的纤维形态及理化性能研究 |
| Study on Fiber Morphology and Physicochemical Properties of Four Pinaceae Wood Species |
| 收稿日期:2025-06-29 修订日期:2025-08-01 |
| DOI:10.11980/j.issn.0254-508X.2025.11.006 |
| 关键词: 松科木材 纤维形态 生物结构 理化性能 |
| Key Words:pinaceae wood fibrous morphology biological structure physical and chemical properties |
| 基金项目:国家科技基础资源调查专项(2019FY100900)。 |
| 作者 | 单位 | 邮编 | | 陈思瑶* | 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 | 510640 | | 肖玉英 | 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 | 510640 | | 储生泽 | 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 | 510640 | | 任俊莉 | 华南理工大学轻工科学与工程学院,先进造纸与纸基材料全国重点实验室,广东广州,510640 | 510640 | | 李赛男 | 肇庆学院生命科学学院,广东肇庆,526061 | 526061 | | 梁国华 | 肇庆学院生命科学学院,广东肇庆,526061 | 526061 | | 刘颖* | 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 | 510640 |
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| 摘要:本研究以樟子松、红松、落叶松和云南松4种典型松科木材为研究对象,系统分析了其生物结构、纤维形态及理化性能。结果表明,4种松科木材纤维的长度加权值分布在1.73~2.07 mm区间内;落叶松的早晚材壁腔比差异最大(早材为0.15,晚材为1.15);4种松科木材的纤维素与半纤维素的含量分布在34.90%~38.62%与16.85%~27.05%之间,其中樟子松的纤维素含量(38.42%)及半纤维素含量(27.05%)均最高;木质素含量差异不大,分布在23.75%~26.41%范围内;而云南松的灰分含量(1.39%)显著高于其他3种松科木材(范围为0.27%~0.33%)。4种松科木材纤维的密度分布在1.33~1.63 g/cm3;结晶度在75.34%~77.41%范围内;热解化学能的分布范围为137.2~178.5 kJ/mol;零距抗张指数分布于158~198 N·m/g,其中红松的数值最高,达198 N·m/g。 |
| Abstract:This study systematically investigated the biological structure, fiber morphology, and physicochemical properties of four representative Pinaceae species: Pinus sylvestris, Pinus koraiensis, Larix gmelinii, and Pinus yunnanensis. The results demonstrated that the length-weighted values of these four Pinaceae fibers ranged from 1.73 to 2.07 mm. Larix gmelinii exhibited the most pronounced difference in cell wall-to-lumen ratio between earlywood (0.15) and latewood (1.15). The cellulose and hemicellulose contents of the raw materials ranged from 34.90% to 38.62% and 16.85% to 27.05%, respectively, with Pinus sylvestris displaying the highest values for both cellulose (38.42%) and hemicellulose (27.05%). Lignin content showed limited variation, distributing between 23.75% and 26.41%. Notably, the ash content of Pinus yunnanensis (1.39%) was significantly higher than that of the other three species (0.27%~0.33%). The density of the four Pinaceae fibers ranged from 1.33 to 1.63 g/cm³, while crystallinity fell within 75.34%~77.41%. The pyrolytic energy distribution spanned 137.2~178.5 kJ/mol. The zero-span tensile index under dry conditions ranged from 158 to 198 N·m/g, with Pinus koraiensis exhibiting the highest value (198 N·m/g). |
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