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首页> 外文会议>ISWFPC;International symposium on wood, fiber and pulping chemistry >CHEMICAL CHARACTERISTICS AND KRAFT PULPING RESPONSE OF PHYLLOSTACHYS PUBESCENS STEM, RECYCELED BAMBOO AND E. GRANDIS WOOD
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CHEMICAL CHARACTERISTICS AND KRAFT PULPING RESPONSE OF PHYLLOSTACHYS PUBESCENS STEM, RECYCELED BAMBOO AND E. GRANDIS WOOD

机译：竹脚竹，再生竹和E木的化学特性和牛皮纸浆反应

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Bamboo has been reported to be a raw material at some kraft pulp mills. However, there are few findings on the relationship between the chemical conditions and their responses to cooking and bleaching. In this study, Phyllostachys pubescens obtained from Ibaraki prefecture of Japan, and bamboo scrap (recycled bamboo) obtained from Hangzhou, China, were chemically analyzed, cooked by Kraft method, and bleached with totally chlorine-free (TCF) bleaching. Results showed that while the lignin content of the recycled bamboo was the highest, it was similar for the P. pubescens stem and the E. grandis wood, and xylan content of P. pubescens is higher than that of the E. grandis wood, with that of the recycled bamboo in-between. In obtaining pulps with given kappa numbers, the delignification response of P. pubescens was equal to that of E. grandis and better than that of recycled bamboo. The hexenuronic acid contents of P. pubescens and recycled bamboo kraft pulp were lower than that of E. grandis. The brightness values of the unbleached as well as oxygen del igni fled pulps prepared from p. pubescens and recycled bamboo were much higher than that from E. gradis. However, the E. gradis pulp showed much better brightness development in AZEP bleaching. Nevertheless, the recycled bamboo pulp had the similar brightness development both in the cooking, oxygen delignification, as well as the AZEP bleaching, indicating that recycled bamboo is also a good raw material for making bleached kraft pulp.
机译：据报道，在某些牛皮纸制浆厂中，竹子是原材料。但是，关于化学条件与其对蒸煮和漂白的反应之间的关系的发现很少。在这项研究中，对从日本茨城县获得的毛竹和从中国杭州获得的竹屑（再生竹）进行了化学分析，采用卡夫法烹制，然后用完全无氯的漂白剂进行了漂白。结果表明，再生竹的木质素含量最高，但毛竹和大叶木的木质素含量相似，而毛木聚糖的木聚糖含量比大木高。中间的回收竹。在获得具有给定κ值的纸浆中，毛竹的去木质素反应与大叶桉相同，并且优于再生竹。毛竹和再生竹牛皮纸浆的己烯醛酸含量低于大叶桉。由p制备的未漂白纸浆和氧气脱浆纸浆的亮度值。毛竹和再生竹比E. gradis的要高得多。但是，在AZEP漂白中，E。gradis纸浆显示出更好的增白效果。然而，再生竹浆在蒸煮，氧气脱木素以及AZEP漂白方面都具有相似的增白效果，这表明再生竹浆也是制备漂白牛皮纸浆的良好原料。

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