High softening point hot melt adhesive containing microcrystalline wax

Abstract

The invention discloses a high softening point hot melt adhesive containing microcrystalline wax. The hot melt adhesive is prepared from the following raw materials in parts by weight: 75-90 parts of EVA, 30-40 parts of modified tackifying resin, 1-4 parts of dodecyl trimethyl ammonium chloride, 30-40 parts of aluminum hydroxide, 10-20 parts of nanometer bentonite, 10-20 parts of styrene butadiene rubber, 12-15 parts of carbon black N330, 1-2 parts of a titanate coupling agent TMC-TTS, 1-2 parts of an antioxidant 168, 1-2 parts of tetrabutyl titanate; 40-50 parts of wollostonite powder, 0.5-1 part of an antioxidant MB, 3-5 parts of microcrystalline wax, 1-2 parts of phenethylene and 1-5 parts of zinc oxide. Microcrystalline wax, serving as a lubricant, is added into the hot melt adhesive and reasonably composited with other raw materials, so that the prepared hot melt adhesive is high in adhesive property and elasticity; through intercalation modification, the mechanical property of rubber and the thermal deformation temperature can be improved, and the water absorptivity is low; when intercalated compound modified material is utilized for preparation of the hot melt adhesive, the compatibility of all the raw materials can be improved, and the viscosity and water resistance of the hot melt adhesive can be improved.

Description

technical field [0001] The invention belongs to the field of adhesives, in particular to a hot-melt adhesive with a high softening point containing microcrystalline wax. Background technique [0002] EVA hot melt adhesive is formulated from EVA resin, tackifier, plasticizer, antioxidant, filler, etc. In today's society, EVA hot melt adhesives are widely used and used in the largest amount. It has excellent bonding performance, almost has thermal adhesion to various materials; excellent electrical properties; and its low melt viscosity, convenient sizing; good compatibility with other compounding agents, etc. EVA hot melt adhesives have been widely used in many fields such as book binding, food packaging, plastic bonding, ceramic repairing, mounting, clothing, shoes and hats molding, automobiles and building materials. Since EVA resin is a thermoplastic resin, it has limited high and low temperature resistance and low softening point, and most of the main auxiliary tackifie...