交流、碰撞、融合——浅析禾素作品乡愁的文化内涵

禾素的乡愁不同于鲁迅那承载国民劣根性批判的乡愁,也不同于余光中那承载人生颠沛流离渴望统一的乡愁。它承载着一个傣族作家生命成长体验,承载着作者在困境逆境中对善良人性的坚守,对理想生活理想人格的期盼,承载着作者传承与弘扬民族文化的思考和实践,也承载着一个具有强大文化适应能力,在不同文化的交流碰撞和融合中迅速成长起来的中国香港知识女性对人情世故的感悟和对生命意义的思索。

棉/禾素混纺织物的染色

采用分散染料和活性染料对棉/禾素混纺织物进行染色,优化的染色工艺为:分散染料1%(omf),载体2%(omf),匀染剂2 g/L,染色温度90℃,染色时间30 min;活性染料3%(omf),氯化钠40 g/L,碳酸钠20 g/L,染色温度60℃,染色时间60 min。染色后织物耐皂洗色牢度和耐摩擦色牢度优良,但手感稍差。

棉/禾素混纺织物的一浴法染色工艺

采用分散染料/活性染料对棉/禾素混纺织物进行一浴法染色,分析了载体用量、碳酸钠用量、匀染剂用量以及染色温度和时间对染色效果的影响,优化染色工艺为:分散染料0.5%,活性染料1%,载体2%,匀染剂1 g/L,染色温度90℃,染色时间30 min,氯化钠20 g/L,碳酸钠10 g/L。染色织物的色牢度优良,手感稍硬,强力损失20.16%。

禾素纤维与其他纺织纤维混纺产品定性、定量方法研究与探讨

本文采用显微镜法、燃烧法、溶解法、红外光谱法对禾素纤维进行了定性分析;采用化学溶解法对禾素纤维与其他纺织纤维混纺织物进行了定量分析探讨。研究发现,禾素纤维形态与常见合成纤维的外观形态差异不十分明显;其燃烧的过程、气味、灰烬与纤维素纤维、蛋白质纤维有较大差异;在常温下溶于98%硫酸、二氯甲烷,70℃下溶于甲酸/氯化锌溶液;在1722cm^(-1)和1748 cm^(-1)处出现了双吸收峰,结合上述4种鉴别方法可以对禾素纤维进行定性分析。另外,用二氯甲烷法可以用于禾素纤维与羊毛、再生蛋白质纤维、棉、粘纤、铜氨纤维、莫代尔纤维、聚酰胺纤维、聚酯纤维、聚丙烯腈纤维和玻璃纤维混纺产品定量分析;用冰乙酸法解决了二醋酯纤维、三醋酯纤维在二氯甲烷中部分溶解的问题。

Preliminary Study on the Accumulation Characteristics of Mineral Elements in Potted Poa crymophila under Drought and Water Stress

[Objective] This study was conducted to explain the mechanism of the accumulation characteristics of mineral elements in alpine grassland plants. [Method] Cultivated alpine grassland plant, Poa crymophila, was treated with drought and wa- ter stress, and then the samples were collected and analyzed. [Result] Compared with the control group, under drought and water stress, multiple mineral elements tended to accumulate and increase, and there were significant differences in the contents of Cu, Mn, Ni and P （P〈0.05）. [Conclusion] Under drought and water stress, mineral elements in potted Poa crymophila tended to accumulate and in- crease, which is the adaption and response of Poa crymophila to drought and water stress, as well as the re-verification of the starvation effect hypothesis of mineral effects. The starvation effect of mineral elements is one of the endogenic forces for the accumulation and differentiation of mineral elements in grassland plants.