PBAT material can not only be biodegradable but also compostable, so the use of PBAT can fight against white pollution. The biodegradable garbage bags produced by PBAT are the membrane materials used in the recycling of biological waste in the biological composting waste center, which are mainly used in: fully degradable packaging film; fully degradable packaging bags, including shopping bags, rolled garbage bags, pet manure bags, electronic product packaging bags, Food packaging bag, plastic film and so on.