A light-storing and luminescent polyvinyl chloride extrusion composition and preparation method thereof

Abstract

The invention provides a light-retaining and light-emitting type polyvinyl chloride extrusion composition and a preparation method thereof, belonging to the technical field of processing applications of polymeric materials. The light-retaining and light-emitting type polyvinyl chloride extrusion composition is composed of the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 1.5 to 10 parts of a plasticizer, 1 to 7 parts of a stabilizer, 1 to 6 parts of an auxiliary stabilizer, 6 to 10 parts of an anti-impact modifier, 0.5 to 3.0 parts of a lubricant, 5 to 30 parts of a light-retaining type luminescent material and 0.03 to 0.9 part of a titanate coupling agent. The preparation method comprises the following steps: 1) mixing the titanate coupling agent with the light-retaining type luminescent material, then carrying out mixing with the plasticizer, carrying out impregnation, adding the lubricant, carrying out mixing, and carrying out three-roller grinding so as to obtain a light-retaining and light-emitting premix; and 2) mixing polyvinyl chloride, the stabilizer, the auxiliary stabilizer and the anti-impact modifier under stirring at 90 to 110 DEG C, adding the light-retaining and light-emitting premix, carrying out heating to 110 DEG C, carrying out stirring at a low speed, carrying out cooling to 40 DEG C or below, and carrying out discharging. The light-retaining and light-emitting type polyvinyl chloride extrusion composition has the advantages of long light-emitting time, bright lighting, insusceptibility to blackening, good flexibility, and capability of being wrapped at the exterior of curved surface.

Description

technical field [0001] The invention belongs to the technical field of polymer material processing and application, and in particular relates to a light-storing and light-emitting polyvinyl chloride extrusion composition and a preparation method thereof. Background technique [0002] Light-storing materials refer to materials that store energy in materials after being irradiated by sunlight or light, and release energy in the form of light at night or in dark places. They are mainly used for safety signs, billboards, handicrafts, traffic instructions, guardrails and fences, etc. use. Most of the light-storage materials are light-storage and light-emitting paint products. Due to the characteristics of light-storage materials, there are few light-storage products used for extrusion molding. [0003] The patent publication number is CN101817961A, which discloses a technology for preparing articles with the effect of releasing negative ions by using PVC paste resin, Anion serie...

AI Technical Summary

Problems solved by technology

At present, light-storing materials are mostly used in powder coatings and plastic spraying materials, and no reports on PVC extrusion compositions have been found. The main reason is that light-storing luminescent powders have poor high temperature resistance and high hardness. After strong friction on the metal wall of the machine, it is easy to make the product black