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林产化学与工业 ›› 2018, Vol. 38 ›› Issue (6): 124-128.doi: 10.3969/j.issn.0253-2417.2018.06.017

• 研究报告 • 上一篇    下一篇

稻壳基高吸水树脂的制备及对披碱草种子生长发育的影响

张小舟1, 梁猛2, 杨妍2, 贾宏葛1   

  1. 1. 齐齐哈尔大学 材料科学与工程学院;黑龙江省聚合物基复合材料重点实验室, 黑龙江 齐齐哈尔 161006;
    2. 辽宁银珠化纺集团有限公司, 辽宁 营口 115000
  • 收稿日期:2018-08-06 出版日期:2018-12-25 发布日期:2018-12-27
  • 作者简介:张小舟(1974-),女,江苏扬州人,教授,博士,硕士生导师,主要从事功能高分子材料的制备研究;E-mail:zhangxzh-n@163.com。
  • 基金资助:
    黑龙江省省属高等学校基本科研业务费科研项目(YSTSXK201862)

Preparation of Rice Husk Based Super Absorbent Polymer and Its Effect on Growth and Development of Elymus nutans Seed

ZHANG Xiaozhou1, LIANG Meng2, YANG Yan2, JIA Hongge1   

  1. 1. College of Materials Science and Engineering, Qiqihar University, Heilongjiang Key Laboratory of Polymer Matrix Composites, Qiqihar 161006, China;
    2. Liaoning Yinzhu Chemtex Group CO., LTD., Yinkou 115000, China
  • Received:2018-08-06 Online:2018-12-25 Published:2018-12-27

摘要: 以稻壳为原料,经改性制备稻壳基高吸水树脂(SAP),利用正交试验对制备条件进行了优化,并通过红外光谱分析对其结构进行了表征;进一步分析了SAP添加量对披碱草出苗率及植株生长过程中干、鲜质量的影响。结果表明:交联剂用量对SAP吸水率影响最大,且当稻壳用量占20%、单体丙烯酸(AA)与丙烯酰胺(AM)质量比为3:5、丙烯酸中和度为75%、引发剂占单体量的0.56%、交联剂占单体量的0.34%时,制备的SAP吸水率最大可达120 g/g。通过种植试验,发现添加SAP后的披碱草出苗率及植株干、鲜质量都明显高于空白对照组,随着SAP用量的增加,出苗率及植株干、鲜质量均显著提高,当施用量为12 g/m2时逐渐趋于稳定,综合效果最好,此时出苗率达85.9%,是空白对照组的2.74倍;植株的干、鲜质量分别为空白对照组的2倍和3.375倍,说明本研究制备的SAP能有效提高土壤含水量,提高种子出苗率,增加植株干物质积累。

关键词: 稻壳, 纤维, 高吸水树脂, 披碱草

Abstract: The rice hull-based super absorbent polymer (SAP) was prepared with rice husk as raw material. The preparation conditions were optimized by orthogonal test, and its structure was characterized by infrared spectroscopy. The effects of addition of different amounts of SAP on the emergence rate of Elymus nutans and the dry and fresh weight during plant growth were further analyzed. The results showed that the amount of cross-linking agent had the greatest influence on the water absorption rate of SAP. Under the conditions of the rice hull content was 20%, the mass ratio of monomeric acrylic acid (AA) and acrylamide (AM) was 3:5, and the acrylic acid neutralization degree was 75%, the initiator accounted for 0.56% of the monomer amount and the crosslinking agent accounted for 0.34% of the monomer amount, the prepared SAP water absorption rate could reach 120 g/g. It was found that the emergence rate of E. nutans and the dry and fresh weight of the plants after adding SAP were significantly higher than those of the blank control group by planting experiments. The emergence rate and the dry and fresh weight of the plants were significantly improved with the addition of SAP. When the SAP dosage was 12 g/m2, they gradually became stable, and the comprehensive effect was the best. At this time, the emergence rate was 85.9%, which was 2.74 times of that of the blank control group; the dry and fresh weights of the plants were 2 times and 3.375 times of that of the blank control group, respectively. It indicated that the SAP prepared in the present study could effectively increase water content of soil, emergence rate of seed and the dry matter accumulation of plant.

Key words: rice husk, fiber, super absorbent polymer, Elymus nutans

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