Hot melt adhesive for plastic pipe and preparation method thereof

Abstract

The invention discloses a hot melt adhesive for a plastic pipe. The hot melt adhesive for the plastic pipe is prepared from the following components comprising, by weight, 85-90 parts of an EEA resin, 10-15 parts of SBS polystyrene-polybutadiene-polystyrene, 12-16 parts of a nitrile rubber P6300 tackifying resin, 1-2 parts of ethylidene bistearic amide, 14-16 parts of calcined clay, 0.3-0.4 parts of an antioxidant 300, 0.1-0.2 parts of an antioxidant 736, 0.1-0.2 parts of an antioxidant 626, 6-8 parts of an aluminium nitride powder and 1-2 parts of propanediol sebacate polyester. Firstly, the nitrile rubber tackifying resin is prepared, and then is mixed with other raw materials; then the mixture is extruded through an extruder, and is cooled and granulated. The hot melt adhesive by the invention is strong in caking property, and a self-made rubber tackifying resin is added in the formula to make the prepared hot melt adhesive have the advantages of strong caking property, good low temperature resistance, good weather fastness, good ageing resistance and good toughness.

Description

technical field [0001] The invention relates to the field of hot-melt adhesives, in particular to a hot-melt adhesive for plastic pipes and a preparation method thereof. Background technique [0002] Hot melt adhesive is a solid adhesive made of thermoplastic resin or elastomer as the base material, adding tackifier, plasticizer, antioxidant, flame retardant and filler, and melting and mixing. Compared with thermosetting, solvent-based and water-based adhesives, it has many advantages. Therefore, since the 1950s, hot-melt adhesives have developed rapidly in many fields, especially in printing, packaging and other industries. Glue replaced nail and wire binding, and began to be used in construction, aircraft, ships and automotive interior decoration and other fields. [0003] There are many hot-melt adhesive-related products on the market, but as the temperature changes, the performance of traditional hot-melt adhesives also changes. When the temperature rises to a certa...

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Problems solved by technology

[0003] There are many hot-melt adhesive-related products on the market, but as the temperature changes, the performance of traditional hot-melt adhesives also changes. When the temperature rises to a certain high temperature or drops to a certain low temperature, the performance of hot-melt adhesives will decrease. The bonding strength is weakened, which ultimately affects the strength of the material