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Dej Soluble Pva Cov Ntaub Ntawv
Dej-Soluble PVA cov ntaub ntawv raug hloov kho los ntawm kev ua txhaum polyvinylinyl chocolate (pva), hmoov txhuv nplej siab thiab lwm lwm cov dej soluble ntxiv. Cov ntaub ntawv no yog ib puag ncig cov phooj ywg nrog cov dej solubility thiab biodegradable cov khoom, lawv tuaj yeem yaj tag hauv dej. Nyob hauv ib puag ncig ntuj, microbes thaum kawg tsoo cov khoom lag luam rau cov roj carbon dioxide thiab dej. Tom qab rov qab mus rau qhov chaw ib puag ncig, lawv tsis muaj tshuaj lom rau cov nroj tsuag thiab tsiaj.
