Method for producing wax with co-cracking of multiple plastics and resins

Abstract

The invention discloses a method for preparing wax from multiple plastic resins by copyrolysis. Raw material of polyolefin is put into a reaction kettle; the reaction kettle is vacuumized and then filled with nitrogen until the pressure reaches 100kPa; raw material in the kettle is heated by a method of oil-bath or infrared ray until the raw material comes to a total fusion; the temperature is controlled between 300 DEG C to 450 DEG C and maintained constant for 0.5 hour to 10 hours; heating is stopped, the temperature is reduced below 200 DEG C and the raw material which is the wax is discharged; and the performance of the product is tested. The method has the advantages of high heat distortion point, high rigidity, high tenacity, lubricating property, wet fastness and the like; and the method also has simple production operation and wide application.

Description

【Technical field】 [0001] The invention relates to the field of decomposing wax, in particular to a method for co-cracking multiple plastic resins to produce wax. 【Background technique】 [0002] Polyolefin wax (such as polyethylene wax, polypropylene wax, EVA wax, etc.) is a low molecular weight polyolefin, which is a non-toxic, odorless, non-corrosive white or light yellow wax, usually with a molecular weight of 500 ~10000. Polyolefin wax has good chemical stability, thermal stability and moisture resistance, low melt viscosity and excellent electrical properties, so it is widely used as a good processing aid in rubber, plastics, fibers, coatings, inks, pharmaceuticals , additives for food processing and casting of precision instruments. The multiple uses of polyolefin waxes such as polyethylene wax, polypropylene wax and EVA wax have greatly increased their consumption. However, there are not many manufacturers of polyolefin waxes such as polyethylene wax, polypropylene w...