Reflective heat-insulation polyvinyl chloride (PVC) waterproof coiled material and preparation method thereof

Abstract

The invention discloses a reflective heat-insulation polyvinyl chloride (PVC) waterproof coiled material and a preparation method thereof. The PVC waterproof coiled material comprises the following components in parts by weight: 100 parts of PVC resin powder, 20-60 parts of a plasticizer, 10-30 parts of a toughening agent, 4-6 parts of epoxidized soybean oil, 2-5 parts of a heat stabilizer, 3-12 parts of potassium hexatitanate and / or sodium hexatitanate, 3-5 parts of titanium dioxide, 0.2-0.5 part of stearic acid, 0.1-0.4 part of calcium stearate, 0.2-2 parts of an antioxidant, 0.2-2 parts ofa light stabilizer, 20-40 parts of calcium carbonate and 0.1-0.5 part of a coupling agent. The coiled material has excellent dimensional stability, reflection heat insulation performance, good mechanical property, good low-temperature toughness, good aging resistance, long service life of the product, energy conservation and environment friendliness, and is particularly suitable for being used onexposed roofs.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a reflective heat-insulating PVC waterproof coiled material and a preparation method thereof. Background technique [0002] PVC waterproof membrane is a flexible waterproof material. Compared with modified asphalt waterproof membrane and waterproof coating, it has the advantages of long service life, environmental protection, and convenient construction and maintenance. At present, when PVC waterproofing membranes on the market are used for roof waterproofing, they still have the defects of poor aging resistance and dimensional stability. [0003] In addition, the roof is exposed to direct sunlight. Usually, the roof only reflects 10-20% of the solar radiation. Most of the solar radiation is absorbed by the roof or the outer wall of the building. After absorbing the solar radiation, the temperature inside the building rises , Increase the electricity consumption of air...

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Problems solved by technology

[0004] Existing PVC waterproof membranes have problems of aging resistance, dimensional stability and poor heat insulation performance. In order to solve this problem, firstly, a reflective and heat-insulating PVC waterproof membrane is provided, which can reflect most of the sun Light radiation, and low thermal conductivity, with reflection and barrier double heat insulation effect to prevent heat transfer inward, thereby effectively reducing the internal temperature of the building

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