NOx对白酒塑料包装制品性能的影响研究

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NOx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NOx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NOx(2480 mg...

Effect of air pollutants NOx on plastic packaging materials for liquor

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.