Rat-proof PVC (polyvinyl chloride) modified material and preparation method thereof

Abstract

The invention relates to the technical field of PVC (polyvinyl chloride) materials, in particular to a rat-proof PVC modified material and a preparation method thereof. The rat-proof PVC modified material comprises raw materials in parts by weight as follows: 80-120 parts of PVC resin, 45-65 parts of a plasticizer, 25-45 parts of a filling agent, 3-7 parts of a heat stabilizer, 2-4 parts of an impact modifier, 0.8-1.6 parts of a rat proof agent, 0.6-1.0 part of a lubricating agent and 0.3-0.7 parts of other aids. According to the rat-proof PVC modified material, each property of the prepared rat-proof PVC modified material exceeds the national standard with the adoption of the raw materials and through strict control of the weight ratio of the raw materials, the rat proof effect is good, and the rat-proof PVC modified material is environment-friendly and has excellent temperature resistance and weather fastness, high strength, excellent impact resistance, good flame retardant effect, excellent processing performance and excellent overall performance.

Description

technical field [0001] The invention relates to the technical field of PVC materials, in particular to a rat-proof PVC modified material and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general-purpose thermoplastics. It has the advantages of light weight, high strength, insulation, flame retardancy, corrosion resistance, excellent comprehensive performance, low price and wide source of raw materials; but also There are the following disadvantages: 1. The toughness is poor, and it is easy to be brittle when impacted, so it cannot be used as a structural material. In addition, the brittleness of polyvinyl chloride is greatly affected by temperature. The lower limit of general PVC products is -15°C. The lower limit of use of PVC is -30°C; 2. Poor thermal stability, it begins to decompose HCl at 100°C, and decomposes more rapidly when it is higher than 150°C, and the melting temperatur...

AI Technical Summary

Problems solved by technology

[0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general-purpose thermoplastics. It has light weight, high strength, insulation, flame retardancy, corrosion resistance, It has the advantages of excellent comprehensive performance, low price and wide source of raw materials; but it also has the following disadvantages: 1. Poor toughness, easy to be brittle when impacted, so it cannot be used as a structural material. In addition, the brittleness of polyvinyl chloride is greatly affected by temperature. Large, the lower limit of general PVC products is -15°C, and the lower limit of soft PVC is -30°C; 2. Poor thermal stability, it begins to decompose HCl at 100°C, and decomposes more rapidly when it is higher than 150°C. The melting temperature of PVC is about 210°C; 3. The viscosity of PVC is extremely high and its fluidity is extremely poor, which limits its use to a certain extent.

[0005] The above-mentioned existing PVC sheathed cables, PVC plugs, PVC films and PVC pipes all have hidden dangers of being eaten by mice. Therefore, it is particularly important to develop a mouse-proof PVC material