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施胶量对水稻生物质育秧盘理化性能的影响

张智慧, 冯帆, 刘晓文, 宋宏颖, 张玉敏, 顾强

张智慧, 冯帆, 刘晓文, 等. 施胶量对水稻生物质育秧盘理化性能的影响[J]. 华南农业大学学报, 2025, 46(1): 34-40. DOI: 10.7671/j.issn.1001-411X.202404033
引用本文: 张智慧, 冯帆, 刘晓文, 等. 施胶量对水稻生物质育秧盘理化性能的影响[J]. 华南农业大学学报, 2025, 46(1): 34-40. DOI: 10.7671/j.issn.1001-411X.202404033
ZHANG Zhihui, FENG Fan, LIU Xiaowen, et al. Effect of adhesive application amount on the physical and chemical properties of rice biomass seedling raising trays[J]. Journal of South China Agricultural University, 2025, 46(1): 34-40. DOI: 10.7671/j.issn.1001-411X.202404033
Citation: ZHANG Zhihui, FENG Fan, LIU Xiaowen, et al. Effect of adhesive application amount on the physical and chemical properties of rice biomass seedling raising trays[J]. Journal of South China Agricultural University, 2025, 46(1): 34-40. DOI: 10.7671/j.issn.1001-411X.202404033

施胶量对水稻生物质育秧盘理化性能的影响

基金项目: 吉林省科技计划(3D509L431412)
详细信息
    作者简介:

    张智慧,硕士研究生,主要从事可降解育秧盘研究,E-mail:zhzhang123258@163.com

    通讯作者:

    顾 强,教授,博士,主要从事精细化学品化学合成研究,E-mail:gua@jlu.edu.cn

  • 中图分类号: S18

Effect of adhesive application amount on the physical and chemical properties of rice biomass seedling raising trays

  • 摘要:
    目的 

    研究胶粘剂在生物质育秧盘成型过程中的作用,探究不同施胶量对水稻育秧盘理化性能的影响。

    方法 

    将秸秆和牛粪按6∶4的质量比发酵,将其产物作为可降解生物基质,配以自制弱酸性、粘结强度高且耐水性好的改性淀粉胶粘剂,同时加入营养元素混合搅拌,在2~3 MPa压力下低压成型,保压5~7 min后进行干燥定型,得到水稻生物质育秧盘;采用单因素方差分析法,分析不同施胶量对育秧盘生物降解率、体积膨胀率、含水率以及剪切强度的影响。

    结果 

    确定最佳施胶量(w)为秧盘总质量的21%,此时所制得秧盘的生物降解率为82%,剪切强度为0.07 MPa,含水率(w)为12.5%,体积膨胀率为56%。与市售育秧盘相比,所制备的水稻生物质育秧盘施胶量降低,抗水性能提高,成型压力低、温度低、时间短,可生物降解,满足水稻育秧盘的要求。

    结论 

    研究结果可为生物质育秧盘的工业化生产提供技术支持,为秸秆和牛粪的高附加值利用提供新途径,促进水稻秧苗的优质生产。

    Abstract:
    Objective 

    To study the effect of adhesive in the forming process of biomass seedling tray and explore the effect of different applied amounts of adhesive on the physical and chemical properties of rice seedling tray.

    Method 

    Straw and cow dung were fermented at a mass ratio of 6∶4, and the products were used as biodegradable biological substrates. The self-synthesized modified starch adhesive, characterized by its weak acidity, high adhesive strength, and excellent water resistance, was incorporated into the formulation. Concurrently, nutritional elements were introduced and thoroughly mixed. Then, the rice seedling tray was fabricated through low-pressure molding at a pressure of 2−3 MPa, followed by dryness finalization after maintaining the pressure for 5−7 min. One-way ANOVA was used to analyze the effects of different applied adhesive amounts on the biodegradation rate, volume expansion rate, moisture content and shear strength of seedling raising tray.

    Result 

    The optimal applied amount of adhesive was 21% (w) of the total mass of the seedling raising tray, and the resulting seedling raising tray had the biodegradation rate of 82%, the shear strength of 0.07 MPa, the moisture content (w) of 12.5% and the volume expansion rate of 56%. Compared to commercially available seedling trays, the prepared rice seedling trays reduced the amount of adhesive used, improved water resistance, reduced molding pressure and temperature, shortened molding time, and were biodegradable, meeting the requirements for rice seedling trays.

    Conclusion 

    This result provides the technical support for the industrial production of biomass seedling raising trays, offers a new avenue for the high-value utilization of straw and cow dung, and promoes the quality production of seedlings.

  • 图  1   剪切力测试装置示意图(A)及实物图(B)

    Figure  1.   Shear force test device schematic diagram (A) and physical diagram (B)

    图  2   施胶量对水稻生物质育秧盘生物降解率的影响

    柱子上方的不同小写字母表示处理间差异显著(P<0.05,单因素方差分析)。

    Figure  2.   Effect of applied adhesive amount on biodegradation rate of rice biomass seedling raising tray

    Different lowercase letters on the columns indicate significant differences among treatments (P<0.05, one-way ANOVA).

    图  3   施胶量对水稻生物质育秧盘体积膨胀率的影响

    柱子上方的不同小写字母表示处理间差异显著(P<0.05,单因素方差分析)。

    Figure  3.   Effect of applied adhesive amount on volume expansion ratio of rice biomass seedling raising tray

    Different lowercase letters on the columns indicate significant differences among treatments (P<0.05, one-way ANOVA).

    图  4   施胶量对水稻生物质育秧盘含水率的影响

    柱子上方的不同小写字母表示处理间差异显著(P<0.05,单因素方差分析)。

    Figure  4.   Effect of applied adhesive amount on moisture content of rice biomass seedling raising tray

    Different lowercase letters on the columns indicate significant differences among treatments (P<0.05, one-way ANOVA).

    图  5   施胶量对水稻生物质育秧盘剪切强度的影响

    柱子上方的不同小写字母表示处理间差异显著(P<0.05,单因素方差分析)。

    Figure  5.   Effect of applied adhesive amount on shear strength of rice biomass seedling raising tray

    Different lowercase letters on the columns indicate significant differences among treatments (P<0.05, one-way ANOVA).

    表  1   改性淀粉胶粘剂与市售氧化淀粉胶粘剂性能对比

    Table  1   Property comparison of modified starch adhesive and commercially available oxidized starch adhesive

    淀粉胶粘剂
    Starch adhesive
    黏度/(MPa·s)
    Viscosity
    流动性/mm
    Liquidity
    粘结强度/(N·cm−2)
    Adhesive strength
    耐水性/h
    Water resistance
    固含量/%
    Solid content
    pH
    改性 Modified 500~600 3.5~5.5 12~14 >36 11~13 5~6
    氧化 Oxidized 300~400 3.0~5.0 7~9 5~7 9~10 11~12
    下载: 导出CSV

    表  2   本研究育秧盘与市售育秧盘性能对比

    Table  2   Performance comparison between seedling raising trays in this study and commercially available seedling raising trays

    育秧盘
    Seedling
    tray
    施胶量(w)/%
    Applied adhesive
    amount
    成型温度/℃
    Molding
    temperature
    成型压力/MPa
    Molding
    pressure
    生物降解率/%
    Biodegradation
    rate
    出苗率/%
    Emergence
    rate
    本研究 This study 21 25 2~3 82 99
    市售 Commercially available 95 100~130 30 不可降解 92
    下载: 导出CSV
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出版历程
  • 收稿日期:  2024-04-18
  • 网络出版日期:  2024-09-24
  • 发布日期:  2024-09-25
  • 刊出日期:  2025-01-09

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    Corresponding author: GU Qiang, gua@jlu.edu.cn

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