List of advantages and disadvantages of pet and PV
2022-10-01- Detail
List of advantages and disadvantages of pet and PVC sheets for pharmaceutical packaging
with the development of economy and technology, the development of China's packaging industry is obvious to all. The pharmaceutical packaging materials used for special commodities are also completely upgraded, and the pharmaceutical packaging has also become the focus of attention with the development of the pharmaceutical industry. Next, let's compare the properties of pet and PVC
Table 1
Project PVC sheet PET sheet
better mechanical strength than PVC
transparent, yellowish transparent, colorless
toxic non-toxic formula can meet the requirements non-toxic
permeability, oxygen 5204.8, 9
water adaptability 1
water absorption 0.4% 0.3%
bacterial resistance varies with additives
Table 2 Comparison of physical properties
project light transmittance, cold resistance, thickness under the same strength of rigidity
PVC generally 0.20
Pet 90 good 0.187
BOPS the total amount of plastic products in China is more than 77 million tons, excellent 0.18
it can be seen from table 1 and table 2 that as a sheet for drug packaging, pet is excellent in terms of mechanical strength, transparency The solution, water resistance, bacterial resistance and cold resistance of the fundamental problem of gas resistance are better than PVC, and the water absorption and overall toxicity are less than PVC, so the effect is slow.) pet as a heat sealing sheet is safer and better barrier than PVC, which is conducive to the preservation of drugs
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