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首页> 外文期刊>RSC Advances >Development of hydrolysed protein-based plywood adhesive from slaughterhouse waste: effect of chemical modification of hydrolysed protein on moisture resistance of formulated adhesives
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Development of hydrolysed protein-based plywood adhesive from slaughterhouse waste: effect of chemical modification of hydrolysed protein on moisture resistance of formulated adhesives

机译：从屠宰场废弃物的水解蛋白基胶合板粘合剂的研制：水解蛋白化学改性对配制粘合剂的耐湿性的影响

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摘要

Specified risk materials (SRM) constitute the proteinaceous waste of slaughterhouses and are currently being disposed off either by incineration or by land filling. Over the last few years, our efforts have focused on developing technology platforms for deployment of this renewable resource for various value-added industrial applications. This report describes a technology for utilization of SRM for the development of an environmentally friendly plywood adhesive with an improved water resistance property. The feedstock (SRM) was first thermally hydrolysed according to a standard protocol, and the hydrolysed protein fragments (peptides) were recovered from the hydrolysate. The recovered peptides were chemically modified through esterification reaction using ethanol, and then chemically crosslinked with polyamideamine-epichlorohydrin (PAE) resin to develop a wood adhesive system. Plywood specimens were then developed using the peptides-PAE resin-based adhesive. The effects of crosslinking time, solid content of the adhesive formulation, ratio of peptides and crosslinking agent in the formulation, and curing conditions of specimen preparation on lap shear strength of resulting plywood specimens were systematically evaluated. Despite the hydrophilic nature of hydrolysed protein fragments, the peptides-PAE resin formulations exhibited remarkable water resistance property after curing. Capping of polar carboxyl groups of peptides by converting them to esters further improved the water resistance property of this adhesive system. Under the optimum conditions of adhesive preparation and curing, the ethyl ester derivative of peptides and PAE resin-based formulations resulted in plywood specimens having comparable dry as well as soaked shear strengths to those of commercial phenol formaldehyde resin.
机译：指定的风险材料（SRM）构成屠宰渣的蛋白质浪费，目前通过焚烧或通过陆地填充来分离。在过去的几年里，我们的努力集中在开发技术平台上，为各种增值工业应用部署这种可再生资源。本报告描述了一种利用SRM，用于开发具有改进的耐水性的环保胶合板粘合剂。首先根据标准方案热改变原料（SRM），并从水解产物中回收水解蛋白片段（肽）。通过使用乙醇的酯化反应化学改性回收的肽，然后用聚酰胺 - 表氯醇（PAE）树脂化学交联以开发木材粘合剂体系。然后使用肽-PAE树脂基粘合剂进行胶合板标本。交联时间，粘合剂制剂的固体含量，肽的比例和交联剂在制剂中的效果，系统地评价了所得胶合板标本的膝盖剪切强度的试样制剂的固化条件。尽管水解蛋白片段的亲水性质，但肽-PAE树脂制剂在固化后表现出显着的耐水性。通过将它们转化为酯的肽的极性羧基覆盖，进一步改善了该粘合体系的耐水性。在粘合剂制备和固化的最佳条件下，肽和帕因树脂的制剂的乙酯衍生物导致胶合板标本具有相当的干燥以及商业酚醛树脂的浸泡剪切强度。

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  • 来源
    《RSC Advances》 |2018年第6期|共13页
  • 作者

    Adhikari Birendra B.; Kislitsin Vadim; Appadu Pooran; Chae Michael; Choi Phillip; Bressler David C.;

  • 作者单位

    Univ Alberta Fac Agr Life &

    Environm Sci Dept Agr Food &

    Nutr Sci Edmonton AB T6G 2P5 Canada;

    Univ Alberta Fac Engn Dept Chem &

    Mat Engn Edmonton AB T6G 1H9 Canada;

    Univ Alberta Fac Agr Life &

    Environm Sci Dept Agr Food &

    Nutr Sci Edmonton AB T6G 2P5 Canada;

    Univ Alberta Fac Agr Life &

    Environm Sci Dept Agr Food &

    Nutr Sci Edmonton AB T6G 2P5 Canada;

    Univ Alberta Fac Engn Dept Chem &

    Mat Engn Edmonton AB T6G 1H9 Canada;

    Univ Alberta Fac Agr Life &

    Environm Sci Dept Agr Food &

    Nutr Sci Edmonton AB T6G 2P5 Canada;

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  • 正文语种 eng
  • 中图分类 化学;
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