Environment-friendly PVC (Polyvinyl Chloride) waterproof roll and preparation method thereof

Abstract

The invention provides an environment-friendly PVC (Polyvinyl Chloride) waterproof roll. The waterproof roll is prepared from the following raw materials: PVC resin, a plasticizer, a heat stabilizer, epoxy soybean oil, fillers, an antioxidant and a light stabilizer. The content of the raw materials of the waterproof roll are as follows in parts by mass: 98 to 102 parts of the PVC resin, 45 to 55 parts of the plasticizer, 2 to 2.5 parts of the heat stabilizer, 5 to 6 parts of t he epoxy soybean oil, 20 to 30 parts of the fillers, 0.2 to 0.6 part of the antioxidant and 0.2 to 0.6 part of the light stabilizer. The waterproof roll provided by the invention has no lead and is environmentally friendly; no lead flows out in construction and application processes; the waterproof roll has high mechanical strength and good weather resistance and stability.

Description

technical field [0001] The invention relates to a PVC waterproof coiled material for construction, in particular to an environment-friendly PVC waterproof coiled material and a preparation method thereof, belonging to the field of waterproof materials. Background technique [0002] With its excellent mechanical properties and convenient construction methods, PVC waterproof membrane has won a wide market in industrial and civil construction waterproofing. [0003] As a new type of polymer waterproof membrane, PVC waterproof membrane has been promoted by the country for its excellent mechanical properties and performance. However, heat stabilizers of lead salts are indispensable in its formulation system. [0004] As we all know, lead compounds mainly enter the body through the respiratory tract, digestive tract and skin, and then spread to other tissues in the body through the blood. Once absorbed, they will accumulate and cannot be excreted quickly. When the lead content i...

AI Technical Summary

Problems solved by technology

At the same time, during the use of PVC coils, the lead salt stabilizer often slowly migrates outward with the plasticizer year by year, and the lead-containing dust formed on the surface of the coils will accumulate more and more, and the migrated lead compounds will be released with rainwater. Or the discharged sewage seeps into the ground, and then enters fish ponds, farmland or orchards, etc., and recycles into the human food chain, which will seriously endanger human health again

[0005] At the same time, due to the limitations of the mechanical properties of the PVC waterproof membrane itself, its seams are prone to water seepage, and the waterproof performance is affected; at the same time, its stability is not good enough in hot and cold environments.

[0006] The existing technology has the following defects: (1) the outflow of lead dust formed on the surface of the coil will pollute the environment; (2) the mechanical properties are not good enough and the stability is poor; (3) the waterproof performance is not good enough, and the seam Poor performance against peeling

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