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頁籤選單縮合
題 名 | 混合放射松樹皮粒片板之特性探討=Effects of Radiata Pine Bark on Prperties of Particleboard |
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作 者 | 陳恬恬; 宋洪丁; 蔡佺廷; 黃文正; | 書刊名 | 林產工業 |
卷 期 | 25:2 民95.06 |
頁 次 | 頁133-142 |
分類號 | 474.5 |
關鍵詞 | 廢棄樹皮; 放射松; 游離甲醛釋出量; Bark residues; Radiata pine; Free formaldehyde emission; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究即是以不同之混合比例製造樹皮一木材粒片板,藉以達到廢物利用之目的。藉由不同的UF用膠量、樹皮尺寸、樹皮混合率因子條件製造粒片板。再依以上不同條件進行包含密度(D)、含水率(MC)、內聚強度(IB)、抗彎強度(BS)、吸水厚度膨脹率(TS)、甲醛釋出量等試驗,以評估放射松樹皮-木材粒片板之性質與製造的可行性。經實驗結果發現,本研究之粒片板壓縮比(緊密度,Rc)與樹皮混合率呈負相關。單層粒片板之密度介於0.63~0.65g/cm3。含水率介於7.99%~9.02%。吸水厚度膨脹率的表現上隨著用膠量減少、樹皮尺寸減小與樹皮混合率之增加而增高。游離甲醛釋出量隨樹皮尺寸之減小、樹皮混合率之增加而降低。內聚強度隨著用膠量之減少、樹皮尺寸減小與樹皮混合率之增加而降低。使用5%樹皮混合率時可以稍微提高彈性模數,但隨著用膠量降低、樹皮尺寸減小、10%以上之樹皮混合率,彈性模數會跟著降低。- 60 + 100 mesh之5%樹皮混合率時可以稍微提高破壞模數,但隨著用膠量降低、樹皮尺寸減小、10%以上之樹皮混合率,破壞模數會跟著降低。 |
英文摘要 | In this study, in order to make the most of wood waste, various types of particleboard can be produced by mixing bark and wood particle in different ratios. Several types of particleboard were produced, according to the following parameters: glue content, bark/wood particle size, bark mixed ratio. To evaluate the feasibility of the mass production of particleboard made of radiata pine bark/wood particle, density (D), moisture content (MC), internal bond strength (IB), bending strength (BS), thickness swelling (TS), and the free formaldehyde emission were investigated. The results showed that the compression ratio (Rc) of the particle board is inversely correlated with the proportion of the bark mixed in the boards. The density of single-layered particleboard ranged from 0.63 to 0.65 g/cm3 and the moisture content ranged from 7.99 to 9.02%. The thickness swelling increased as the glue content and bark size decreased. Increased bark proportion also resulted in increased thickness swelling. Free fonnaldehyde emission decreased as bark mixed ratio increased and glue content decreased. Internal bond strength decreased as glue content decreased and bark size; increased bark proportion also resulted in decreased internal bond strength. The modulus of elasticity was slightly increased when the board manufactured under mixing 5% bark, but decreased when the board manufactured under mixing over in creased 10% of bark. The modulus of elasticity also decreased as glue content and bark size. The modulus of rupture was slightly increased when the board manufactured under mixing 5% bark ( - 60+100 mesh) , but it decreased when the board manufactured under mixing over 10% of bark. The modulus of rupture also decreased as glue content and bark size. |
本系統中英文摘要資訊取自各篇刊載內容。