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Starch
(binder)
● natural polymer ● abundant ●affordable ● renewable ● widely used ● biodegradable
Vinegar / Citric acid
(cross-linker)
● easy-manufacturing ● occurs naturally in citrus fruits ● affordable ● renewable ● biodegradable
Glycerin
(plasticizer)
● obtained from plant and animal resources ● non-toxic ● affordable ● renewable ● biodegradable
LI SHANGTONG
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