NO_(x)对白酒塑料包装制品性能的影响研究  

Effect of air pollutants NO_(x) on plastic packaging materials for liquor

作　　者：曾从钦 潘伟 邹耀邦 ZENG Congqin;PAN Wei;ZOU Yaobang(Sichuan Yibin Wuliangye Group Co,Ltd,Yibin 644000,China;Sichuan Push Acetati Co,Ltd,Yibin 644300,China)

机构地区：[1]四川宜宾五粮液集团有限公司,四川宜宾644000 [2]四川普什醋酸纤维素有限责任公司,四川宜宾644300

出　　处：《中国塑料》2022年第3期127-133,共7页China Plastics

摘　　要：基于白酒塑料包装制品在存储过程中,由于燃油装载车辆排放尾气中的NO_(x)而导致出现气熏黄变现象,通过建造人工环境,研究了不同种类的白酒塑料包装制品在高浓度NO_(x)环境下的黄变、抗腐蚀性和热稳定性等的变化情况,以期确保高端白酒包装选材在正常使用、储存过程中不失效,避免防伪方面出现漏洞。结果表明,在超高浓度NO_(x)(2 480 mg/L)气氛下,烫金的醋纤维素(CA)制件与丙烯腈-丁二烯-苯乙烯共聚物(ABS)真空镀膜件会失去金属颜色,导致包装上关键防伪标识无法辨别,影响包装防伪效果;CA制件与聚酰胺(PA)织布袋经NO_(x)试验后,缩短了制件的设计使用寿命;金属化包装制件、烫金膜等制件的表面涂层适当加厚,稳定剂适量增加,可一定程度上延长制件的稳定期;被NO_(x)侵蚀后,CA件与PA织布袋会因NO_(x)溶解或降解、烫金件与蓝色制件褪色、聚丙烯(PP)件脆化、聚甲基丙烯酸甲酯(PMMA)件龟裂。Based on the yellowing phenomenon caused by the NO_(x) gas emission of gasoline-loading cars in the storage process of plastic packaging products for liquor,the different types of liquor packaging products in high concentration of NO_(x) environment yellow change,corrosion resistance and thermal stability were investigated through the construction of artificial environment. This can ensure the normal use of high-class liquor packaging materials without any failures during storage and also avoid loopholes in anti-counterfeiting. The results indicated that the vacuum coated parts of gilded cellulose acetate(CA)and acrylonitrile butadiene styrene copolymer lost their metal color under the atmosphere of ultra-high concentration of NO_(x)(2 480 mg/L). This resulted in a failure to distinguish the key anti-counterfeiting marks on the package and affected the anti-counterfeiting effect of the package. The design service life of CA parts and polyamide(PA)woven bags was shortened after the NO_(x) test. The surface coating of metallized packaging products,bronzing film and other products was thickened appropriately,and the stabilizer was increased appropriately. This prolonged the stabilization period of the products to a certain extent. After eroded by NO_(x),the CA and PA woven bags were dissolved or degraded by NO_(x),the blue parts and the bronzing parts faded,the polypropylene parts became brittle,and the polymethylmethacrylate parts cracked.

关 键 词：塑料包装制品 氮氧化物 烫金 真空镀膜 褪色 抗腐蚀性 

分 类 号：TQ322.2[化学工程—合成树脂塑料工业]