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首页> 外文期刊>Journal of Applied Polymer Science >Property and storage stability of whey protein-sucrose based safe paper glue
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Property and storage stability of whey protein-sucrose based safe paper glue

机译：乳清蛋白-蔗糖基安全纸胶的性能和贮存稳定性

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摘要

Whey is a byproduct of cheese making. Disposal of whey may cause environmental pollutions. Whey protein isolate (WPI) is obtained from whey via ion-exchange and ultra-filtration, and contains more than 90% of protein. Most current commercially available paper glue products are made from undegradable synthetic polymers and may be harmful to human. The objective of this study was to develop environmentally friendly and children safe paper glue using WPI and sucrose as major ingredients. Results showed that both desirable bonding strength and viscosity of the safe paper glue were achieved by adding sucrose. The whey protein and sucrose based paper glue had excellent recovered bonding strength (ideal for self-seal envelopes) and bonding strength to different substrates (paper-paper, paper-wood, paper-plastic, and paper-metal). Shelf life tests indicated that the safe glue was stable with addition of low level of preservative and there were no considerable changes in bonding strength and viscosity during the storage at 23°C or 40°C for up to 1 year.
机译：乳清是奶酪制作的副产品。乳清的处理可能会造成环境污染。乳清蛋白分离物（WPI）是通过离子交换和超滤从乳清中获得的，其中包含90％以上的蛋白质。当前大多数可商购的纸胶产品都是由不可降解的合成聚合物制成的，可能对人体有害。这项研究的目的是使用WPI和蔗糖作为主要成分开发环保和儿童安全的纸胶。结果表明，通过添加蔗糖，可以实现安全纸胶的理想粘合强度和粘度。乳清蛋白和蔗糖基纸胶具有出色的恢复粘合强度（非常适合自封信封）和与不同基材（纸-纸，纸-木材，纸-塑料和纸-金属）的粘合强度。保质期测试表明，该安全胶在添加少量防腐剂的情况下是稳定的，并且在23°C或40°C储存长达1年的过程中，粘结强度和粘度没有明显变化。

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