Anti-aging hot melt adhesive containing compound antioxidant

Abstract

The invention belongs to the technical field of polymer binders, and particularly relates to an anti-aging hot melt adhesive containing a compound antioxidant, which comprises a gun body, a heating pipe and an alcohol tank. A first cavity is formed in the gun body; the first cavity is designed to be in an L shape; a first through groove is formed in the bottom of the gun body in the first cavity;the first through groove is communicated with the outside; a sealing plug is mounted in the first through groove; a limiting sheet is fixedly connected to the L-shaped junction of the first cavity; aconnecting cover is fixedly connected to the limiting sheet; a connecting groove is formed in the side, facing the first through groove, of the connecting cover; the side wall of the connecting grooveis in threaded design; and limiting plates which are uniformly distributed are fixedly connected to the side wall of the side, far away from the alcohol tank, of the limiting sheet in the first cavity. Polyvinyl butyral brush-coats the surface of a hot melt adhesive rod prepared by extrusion to form a high-melting-point protective film, so that the phenomenon that the surface of a low-melting-point hot melt adhesive rod is sticky when the low-melting-point hot melt adhesive rod is used in a high-temperature environment can be effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of polymer binders, in particular to an aging-resistant hot-melt adhesive containing a compound antioxidant. Background technique [0002] Due to the low melting point of the hot-melt glue stick in the prior art, when it encounters a high-temperature environment during storage and use, it is easy to melt the surface of the hot-melt glue stick, thereby making the surface of the hot-melt glue stick have a certain viscosity. During the storage process, it is very easy to make the surface of the glue stick adhere to dust and impurities, which will have a certain negative impact on the purity of the hot melt adhesive, and then reduce the aesthetics of the melted hot melt adhesive and cause a certain loss of viscosity. At the same time, its surface has Viscosity also affects the taking of hot melt glue sticks. In the prior art, most of the surface modification of hot melt glue sticks is modified by coating anti-st...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the prior art and solve the problem that the surface of the hot melt glue stick is sticky when stored or used in a high temperature environment, which leads to the inconvenient use of the hot melt glue stick, the invention proposes a compound anti-oxidant anti-aging hot melt adhesive

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