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Since July 1, 2019, Shanghai, China has implemented the most stringent waste sorting. The neighborhood waste sorter asks what garbage you bring. Recyclables, Kitchen waste, other waste, hazardous waste.
From the mandatory garbage sorting, where will different material beverage bottles go? From the hottest question and answer on the quora, Why don't they make plastic water/soda/milk bottles out of PLA?
As we know, the beverage bottles are made of PET, PP, PE, PC. Some mineral water bottles, under high temperature and acidic conditions, such as hot water, acid, sour plum, vinegar, etc., may have chemical dissolution. Mineral water bottles are generally used at one time. Recyclable but not degradable for hundreds of years.
The PLA bottle will degrade in 50 years under natural conditions. Crystalline PLA, the only stuff which could theoretically be used in food contact applications, requires in-vessel composting (hydrolysis) to make the structure bioavailable. It is converted to CO2 and water leaving around 20% of the original weight, but the resultant material only provides structure to the compost and no nutrients. This is effectively disposal, rather than recycling.
Calculated by the production of 500,000, the cost of a 21-gram pet preform is 0.041 US dollars.
The cost of a 21-gram PLA preform is $0.182. The two costs differ by a factor of 4.5. Faced with such a cost gap, how many beverage manufacturers can afford it?
As a manufacturer Higee Machinery（Shanghai）Co.,LTD of beverage filling industry, firstly PLA and PET perform pretreat by heat, the blowing machine blows all shapes of bottles. After the astrolabe, it goes through washing, filling and capping machine.
Are they different between filling industry? Which countries are PLA bottles used in popular? Welcome to share your ideas via email firstname.lastname@example.org and phone +86 18616918471. Let us discuss together.
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