Activated renewable rubber powder/PVC (Polyvinyl Chloride) blended damping material and preparation method thereof

Abstract

The invention discloses an activated reclaimed rubber powder / PVC blended damping material and a preparation method thereof. In the invention, waste rubber powder is desulfurized and activated, and blended with PVC to prepare a composite material with good damping performance. The surface of waste rubber powder after activation treatment has active groups, and the reactivity is enhanced, so as to realize the efficient reuse of waste rubber powder and replace traditional rubber damping materials, effectively reducing production costs. Under the action of compatibilizer, the compatibility between recycled waste rubber powder and PVC is better, and the modification effect on PVC is remarkable. At the same time, under the auxiliary effect of petroleum asphalt, hollow fiber and other materials, the various components work together to finally obtain shockproof, The composite damping material with noise reduction, high elasticity and wide temperature range has low production cost and simple process, and has great application prospects in the fields of automobiles and construction.

Description

technical field [0001] The invention relates to the technical field of damping materials, in particular to an activated regenerated rubber powder / PVC blended damping material and a preparation method thereof. Background technique [0002] my country is a big country in tire production and automobiles. With the rapid increase of family car ownership, a large number of waste tires are produced every year. How to effectively recycle these waste tires and prevent environmental pollution has very important practical significance and huge economic value. . At present, the more common waste tire recycling methods mainly include direct utilization of prototypes, heat generation by incineration, retreading of old tires, production of recycled rubber, and production of vulcanized rubber powder. Among them, the production of rubber powder is the most common processing method, which is widely used in the fields of modified asphalt, road paving, and rubber products paving in sports venue...

AI Technical Summary

Problems solved by technology

CN101348584A discloses a method for preparing damping material by using waste polystyrene foam and waste rubber powder, blending modified waste polystyrene foam and pretreated waste rubber powder to obtain a composite material with certain damping properties In this invention, the waste rubber powder is only masticated on the open mill to achieve the pretreatment of the waste rubber powder, which cannot effectively improve the interfacial bonding force between materials, and the damping performance of the prepared material is limited.