English

应用科学学报 ›› 1988, Vol. 6 ›› Issue (3): 265-270.

• 论文 • 上一篇    下一篇

蒸煮袋粘接剂的研究

周庆立, 曹永兴, 周建华   

  1. 南京大学
  • 收稿日期:1986-04-21 修回日期:1986-11-28 出版日期:1988-09-30 发布日期:1988-09-30

A STUDY ON ADHESIVES FOR RETORTABLE POUCH

ZHOU QINGLI, CAO YONGXING, ZHOU JIANHUA   

  1. Applied Chemistry Institute, Nanjing University
  • Received:1986-04-21 Revised:1986-11-28 Online:1988-09-30 Published:1988-09-30

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摘要： 蒸煮袋所用的复合薄膜是由PET、Al和PP三层材料复合而成,复合薄膜所用的粘接剂是影响蒸煮袋性能的重要因素.所研究成功的PET-Al粘合剂是聚醚型聚氨酯,PET-Al剥离强度达6.3N/2cm;PP-Al粘接剂是用马来酸酐改性的PP热熔胶,PP-Al剥离强度达8.1N/2cm.这种PP粘接剂经动物毒性试验证明是无毒的.已成功地把这种粘接剂用于蒸煮袋的生产中.

Abstract: The laminated film of the retortable pouch is made up of PET, Al and PP films. It is known that the types of adhesives for laminating the films have strong influences on the properties of the retortable pouch. The adhesive studied for laminating the PET-Al film was a polyether type of polyurethane adhesive. whose peel strength of adhesion amounted to 6.3N/2cm. The adhesive for laminating Al-PP films was a maleic acid modified PP; its preparation and properties were well studied; the peel strength of adhesion amounted to 8.1N/2cm. These PP adhesives have been proved to be poisonless through animals' toxicity test. Both adhesives have been applied to the manufacture of retortable pouches in Wuhan Printing House, Hubei Province.