Novel high-tenacity PVC (Poly Vinyl Chloride) pipe formula

Abstract

The invention discloses a novel high-tenacity PVC (Poly Vinyl Chloride) pipe formula which is composed of the following components in parts by weight: 40-60 parts of PVC resin, 5-15 parts of engineering plastics, 1-2 parts of soybean oil, 3-5 parts of rubber powder, 3-4 parts of stabilizer, 2-3 parts of titanium dioxide, 10-20 parts of light calcium carbonate, 1-5 parts of fire retardant and 1-2 parts of paraffin. The novel high-tenacity PVC pipe formula provided by the invention has the advantages of good flexibility, environmental friendliness, high strength, good fire retarding effect, good compression performance and tenacity, good processability and excellent overall performance.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride composite materials, in particular to a novel high-toughness PVC pipe formula. 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. 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. The lower limit of general PVC products is -15°C, soft 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 temperature of PVC is ab...

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 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. 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. The lower limit of general PVC products is -15°C, soft 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 temperature of PVC is about 210°C; 3. The viscosity of PVC Extremely high, extremely poor fluidity, which limits its use to a certain extent