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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >The effects of heartwood and sapwood on kraft pulp properties of Pinus nigra J.F.Arnoldand Abies bornmuelleriana Mattf.
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The effects of heartwood and sapwood on kraft pulp properties of Pinus nigra J.F.Arnoldand Abies bornmuelleriana Mattf.

机译：心材和边材对黑松的牛皮纸浆性能的影响J.F.Arnoldand Abiesbornmuelleriana Mattf。

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摘要

The effects of heartwood and sapwood on kraft pulp properties of Pinus nigra J.F.Arnold, and Abies bornmuelleriana Mattf. were investigated. The differences in terms of chemical composition and fiber properties between the heartwood and sapwood of these species were also examined. Heartwood had more holocellulose and extractive compared to sapwood. Moreover, heartwood fiber length was shorter than that of sapwood. Kraft cookings of heartwood and sapwood each species were separately done under fixed cooking conditions. The results indicated that heartwood pulp had lower pulp viscosity and total pulp yield than sapwood did. The tear index of sapwood unbeaten and beaten kraft pulp was higher than that of heartwood. However, the burst and tensile indices of heartwood unbeaten and beaten kraft pulp were higher than those of sapwood.
机译：心材和边材对黑松J.F.Arnold和Abiesbornmuelleriana Mattf的牛皮纸浆性能的影响。被调查了。还检查了这些种类的心材和边材之间在化学组成和纤维性质方面的差异。与边材相比，心材具有更多的纤维素和提取物。此外，心材纤维长度短于边材。在固定的烹饪条件下，分别对心材和边材的牛皮纸进行蒸煮。结果表明，心材浆比边材的浆粘度和总纸浆产量低。边材未打浆和打浆的牛皮纸浆的撕裂指数高于心材。然而，未打浆和打浆的牛皮纸浆的破裂指数和拉伸指数高于边材。

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