Nylon ApronBlock Identify Ways

1、Density method: check thedensity of all kinds of plastic, with liquid medium, test its ups and downs inthe plastic in liquid medium, to discern rough plastic categories, such as a pieceof plastic on the water, float on the surface of the water can be concludedthat the raw material is not PVC (due to the density of PVC > 1).

2、Burning method: mainlyexamines the color of the flame and burning smell and smoke, in general, theraw material of polyolefins combustion flame is blue or light blue, mild smelland light, with a white smoke, whereas most of the raw material with benzene orchlorine after burning smoke, strong smell. In addition, such as PE, PPdripping phenomenon, and PVC, etc, no burning, but have self-extinguishingphenomenon.

3、Optical method: mainlyexamines the transparency of raw material, usually used transparent materials:PS, PC, PMMA, AS; Translucent material: PE, random copolymerized PP,homopolymerization, transparent ABS, PP, soft PVC other largely opaquematerials.

4、Color distinguishingmethod: generally speaking, do not add fertilizer raw material, if itselfcontains double bond, the color will show slightly yellow, such as ABS, withbutadiene copolymer, polymer after polymerization still contain a double bond,so will show slightly yellow.