Как выбрать гостиницу для кошек
14 декабря, 2021
Сегодня каждый, кто собирается в отпуск и не знает, с кем оставить своего котика или кошку, может во[...]
WATER ABSORPTION AND GAS BARRIER PROPERTIES
The main poor attributes of natural polymers like chitosan that limits them in packaging applications are water / moisture absorption and gas barrier (high permeability of gas) properties. As the mechanical properties are highly influenced by water absorption (through plasticization), it is very important to improve the gas barrier properties and moisture absorption or water uptake for chitosan based materials.