CPVC pipeline for fire protection engineering and preparation method of CPVC pipeline

Abstract

The invention discloses a CPVC pipeline for fire protection engineering, belonging to the technical field of CPVC pipelines. The CPVC pipeline is prepared from the following raw materials in parts by weight: 80-90 parts of CPVC resin, 16-18 parts of ceramic fibers, 7-10 parts of glass fibers, 10-12 parts of magnesium oxide, 5-7 parts of calcium oxide, 8-10 parts of calcium carbonate, 2-4 parts of chlorinated paraffin, 2-4 parts of tributyl phosphate, 2-3 parts of an ACR machining modifier, 4-6 parts of a CPE impact modifier, 0.5-1 part of a pigment, 1-2 parts of an antioxidant, 4-5 parts of a heat stabilizer and 0.05-0.5 part of an ultraviolet light absorber. The invention further discloses a preparation method of the CPVC pipeline for fire protection engineering. The CPVC pipeline has relatively good mechanical property and strong fire resistance and high-temperature resistance.

Description

technical field [0001] The invention relates to the technical field of CPVC pipes, in particular to a CPVC pipe for fire engineering and a preparation method thereof. Background technique [0002] CPVC is a new type of engineering plastic with broad application prospects. The resin is made by chlorination and modification of polyvinyl chloride resin, which is a new type of engineering plastic. The product is white or light yellow tasteless, odorless, non-toxic loose granules or powder. After the PVC resin is chlorinated, the irregularity of the molecular bond increases, the polarity increases, the solubility of the resin increases, and the chemical stability increases, thereby improving the material's heat resistance, acid, alkali, salt, oxidant, etc. corrosion. The mechanical properties of heat distortion temperature have been improved, the chlorine content has been increased from 56.7% to 63-69%, the Vicat softening temperature has been increased from 72-82°C to 90-125°...

AI Technical Summary

Problems solved by technology

[0003] At present, the preferred material for fire-fighting pipes is galvanized steel pipe, but it has many defects: the inner wall is easy to rust, and the rust residue that falls off with the extension of use time will block the pipes and nozzles in the fire-fighting system, seriously affecting fire-fighting Efficiency; In addition, it is heavy, the cost per unit length is high, and the installation is inconvenient. It has been replaced by some plastic pipes

Although plastic pipes can overcome the rust of the pipe wall, most plastic pipes cannot work at high temperatures, and most of them are flammable materials, which will generate smoke when burned, which greatly limits the application of plastic pipes in fire protection piping systems