Color-changing upper sealing plate for plastic heat-insulating bottle plug

Abstract

The invention provides a color-changing upper sealing plate for a plastic heat-insulating bottle plug. The upper sealing plate is produced by compounding the raw materials in parts by weight: 45 parts of PVC (polyvinyl chloride), 12 parts of polyester resin, 1.5 parts of epoxy resin, 0.5 part of ferric hydroxide, 1.5 parts of pigment, 2.5 parts of titanium dioxide, 2.5 parts of ultra-fine barium, 1. 2 parts of flatting agent, 0.8 part of brightener, 0.1 part of graphene, 1.2 parts of nano-titanium nitride, 3.5 parts of nanosilicon dioxide, 0.8 part of rare-earth mixture, 0.5 part of phosphotungstic acid, 0.5 part of quartz and 2.5 parts of modified zeolite powder. The upper sealing plate provided by the invention has the characteristic of color changing along with temperature, such that the temperature of a plug body can be judged according to the color change; the raw material components are reasonable in proportion; graphene nanoplatelets are added to promote the coloring performance of a material, such that the material has excellent chemical resistance and weather resistance; the modified zeolite powder is added to ensure that the material is dispersed more easily in a compounding manner; the temperature of the extrusion compounding process is reduced; the upper sealing plate has a natural color, high strength and good cracking resistance.

Description

technical field [0001] The invention relates to the technical field of plastic product production, in particular to a plastic thermos bottle stopper and a discoloration upper sealing plate thereof. Background technique [0002] The thermos bottle is a vacuumized double-walled bottle as a liner and a heat preservation container formed by a cover shell. In modern society, a thermos bottle is one of the indispensable items in people's daily life. Vacuum bottles can be divided into three categories: (1) Thin mouth type: small mouth diameter, good heat preservation performance, mainly used for holding boiling hot water, decocting hot Chinese medicine juice, hot drinks and cold drinks, etc.; (2) Large mouth type: The diameter of the mouth is large, and the items are easy to pick and place. It mainly holds ice cubes, ice cream, cold drinks with containers, iced medicine, liquid gas, anti-fermentation substances, etc., and can also hold hot food, hot drinks with containers, etc.; (3...

AI Technical Summary

Problems solved by technology

At present, most of the thermos bottles used in daily life use wooden stoppers. Although the traditional cork is cheap, its sealing effect on the thermos bottle is not good. If it is not used for a long time, the cork will breed bacteria and even Mildew occurs; also easy to burn hands

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