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

doi:10.3969/j.issn.0253-2417.2018.06.017

Abstract

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

CLC Number:

TQ35

ZHANG Xiaozhou, LIANG Meng, YANG Yan, JIA Hongge. Preparation of Rice Husk Based Super Absorbent Polymer and Its Effect on Growth and Development of Elymus nutans Seed[J]. Chemistry and Industry of Forest Products, 2018, 38(6): 124-128.

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

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