Agents and additives
Agents and additives
The agents could change the color, impact tolerance environmental resistance same as chemical corrosion or physical UV light protection. they could come to action during the processing or rule the post processes. some could change the apparent attributes same as glossy or mate , some make it soft or rough surface, make polymer anti-adhesion of water hydrophobic or vise-versa the bounding /coupling /adhesive agents. some catalyst the polymer chain reaction and some initiate it and some prevent it !