What Impact Does Adding Flame Retardant Have on the Physical Properties of Plastic Sheets?

With the improvement of residents' living standards, the requirements for plastic products are becoming more and more stringent, such as the demand for lower odor. To achieve a low odor for plastic PP sheets, the selection of raw materials is the key. As a commonly used modified material, how can plastic PP achieve a low odor?

First of all, let's take a look at the source of the odor!

The first is the polymerization stage: the residues of monomers, catalysts, emulsifiers, by-products, oligomers, etc. during the synthesis process of raw materials.

The second is the modification stage: volatile small molecular compounds generated by the decomposition reactions of raw materials, additives, fillers, etc. in the formulation.

The third is the molding stage: small molecules produced by the degradation of materials caused by the shear of the screw during the injection molding process.

In this regard, the screening of resins, the selection of fillers, the combination of processing aids, the molding and post-treatment processes are all matters that need attention.

In addition, odor removers can also be added during the processing.