In fact, any plastic raw material has at least a certain proportion of stabilizers when it leaves the factory to prevent it from degrading in storage, transportation and processing. Therefore, strictly speaking, "unmodified plastics" do not exist. In industry, basic resins produced by chemical plants are commonly called "unmodified plastics" or "pure resins".
PP is a common plastic raw material and one of the commonly used modified raw materials. The modification methods can be divided into four kinds: filling modification, strengthening and toughening modification, blending modification and functional modification.
The market for acrylic elastomers will grow from $648.2 million in 2017 to $983.9 million in 2022, with an annual composite growth rate of 8.7 percent, according to the latest forecast by Markets and Markets, a leading U.S. market research firm.
The flame retardant modification of PA66 is mainly realized by two ways.
Problem of broken strips in plastic granulation.