包装论文：无机填料对无载体淀粉胶性能影响的研究

摘  要

介绍了无载体淀粉胶粘剂的制备原理和制备工艺，着重论述了无机填料对无载体淀粉胶的粘度、初粘度、粘结强度的影响。用不同重量的无机填料分别对无载体淀粉胶性能影响进行条件试验，通过对条件试验结果的分析、比较和筛选，确定了无机填料的成组为P、H、R。通过对无机填料P、H和R的配比试验，确定了无机填料的最佳配比和对淀粉的实际用量。试验结果显示，当无机填料P：H：R=4:3:1时，对淀粉的用量8%（重量百分比），用该复合无机填料制备的无载体淀粉胶的粘度为36.8s，初粘度为99.5%；用该胶粘剂粘制瓦楞纸板，检测瓦楞纸板的粘结强度为2210N/m，边压强度为3760N/m，都超过了东莞海富纸品有限公司生产的同纸质瓦楞纸板的粘结强度(1800N/m)和边压强度(3500N/m)。用无机填料制备的无载体淀粉胶在循环使用过程中不变稀，淀粉利用率达100%，生产的瓦楞纸板不发软，不返潮，硬度好，挺度大，值得推广使用。

关键词：无载体淀粉胶粘剂，粘度，无机填料，瓦楞纸板

 
ABSTRACT

 This paper describes the preparation mechanism and technique for the preparation of support-free starch adhesive. Our research focuses on the impact of inorganic packing materials on the viscosity, early viscosity, water resistance, bond strength and compressive strength of boron free and support-free starch adhesive. The condition experiments were carried out using different amount of inorganic packing materials P, R, and H to study their effects on the support-free starch adhesive. After analyzing the results, the best ratio of P: H: R in the composite reinforcing agent is 4:3:1, and the actual amount used is 8% (weight percent of starch). The viscosity of as-prepared starch adhesive with the optimized experimental conditions is 36.8 seconds. Its initially stick force (broken paper rate) 99.5%. The corrugated cardboards made with this adhesive have bond strength of 2210N/m, compressive strength of 3760N/m. The corrugated boards made by the Hoifu Paper Packaging Ltd have adhesive bond strength of 1800N/m and compressive strength of 3500N/m. Thus, the corrugated boards have better quality than those produced by Hoifu Paper Packaging Ltd. All test results indicated that the performance of the corrugated boards made with our adhesive has surpassed the national standard. This adhesive has stable performance. The corrugated board made with this adhesive dries very quickly, has good water resistant performance, and is very suitable for industrial production of adhesive.

Keywords: Support-free starch adhesive, Viscosity, Inorganic Packing materials, Corrugated board

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