Research and application progress of PVC waterproof membrane

The development of PVC Waterproofing Membrane can be traced back to the 1950s. It was initially used for roof and wall waterproofing in industrial and commercial buildings. With the continuous development of technology, PVC waterproofing membrane is used in civil construction projects. Be widely used. Currently, the market demand for PVC waterproof membranes is increasing. It is expected that by 2025, the global PVC waterproof membrane market will reach US$21.7 billion. At the same time, with the continuous upgrading of technology, the performance and quality of PVC waterproof membrane will gradually improve, and the market prospect is very broad. Currently, as one of the most widely used polymer waterproofing membranes in my country, it mainly uses PVC resin as the matrix. Before preparing the pipe, add the required modified fillers, fillers, stabilizers, auxiliaries and other additives and use extrusion coating. The cloth method is a polymer membrane that combines polyester reinforcement ribs and PVC plastic layers on both sides. PVC waterproof membrane has excellent performance, with impermeability, high tear resistance, good low temperature flexibility, and easy construction. Its biggest advantage is that the seams can be welded, can be mass-produced, and can be easily modified (polarity can be added). The material is modified with similar compatibility), is resistant to penetration, and has a long service life, so it is widely used in waterproofing and moisture-proof projects on roofs and underground. With the gradual implementation of the national dual-carbon strategy and the popularization of the concept of healthy living, consumers are paying more and more attention to the environmental protection of building materials. Therefore, the research on more environmentally friendly and durable PVC waterproof membranes is also a general trend. This article will explain in detail the research progress of PVC waterproof membranes and discuss the relationship between plasticizers, fillers, and their properties in PVC, in order to prepare PVC waterproof membranes with better performance and environmental protection.

1. Roof waterproofing

PVC waterproof membrane is the most widely used in roof waterproofing. It has good waterproof performance and anti-aging properties, and can effectively prevent roof leakage and aging. For example, the T2 terminal of Shanghai Pudong Airport uses PVC waterproof membrane. The surface is laid with an elastic PVC film, which can effectively prevent rainwater leakage. It also has excellent weather resistance and will not age after long-term use. The roof of Hangzhou Metro Line 2 uses lightweight foamed cement composite space panels. Due to its mesh structure and uneven settlement caused by hot and cold temperatures in practical applications, it is difficult to waterproof. Therefore, PVC waterproofing reinforced with glass fiber is used. membrane, which also verifies the excellent waterproof performance and construction performance of the PVC membrane system. The Huize Cigarette Factory workshop roof also uses the same PVC coiled material full-adhesive method construction technology, which is of great promotion value. At the same time, adhesive is used to improve the deformation behavior of PVC coiled materials. The PVC single-layer flexible waterproofing system was used in the roof insulation. During the period, polyester fiber internal reinforcement was also used. PVC waterproof membrane and hot air welding process, which shows that reasonable construction technology can give full play to the excellent performance of PVC waterproof membrane. In addition, in order to verify the safety of roof fasteners in locations with high wind pressure, Miyauchi  also chose to mechanically anchor the load of waterproofing membranes during typhoons, and finally proposed a method to determine the location of fasteners and the most suitable response Types of materials for wind pressure on roofs and evaluate the safety of such waterproofing systems.

2. Basement waterproofing

Basement waterproofing is an important part of construction projects, and PVC waterproofing membranes are also widely used in basement waterproofing. For example, Hangzhou Metro Line 1 uses PVC waterproof membrane for basement waterproofing. Its surface is covered with high-strength polyester fiber non-woven fabric, which can effectively prevent moisture leakage inside the basement and has good pressure resistance and durability. sex. Practice has proven that PVC waterproof membrane is the foundation of waterproofing projects and the key construction material. The underground waterproofing project of Tianjin Comprehensive Treatment Plant uses polyester fiber-reinforced PVC waterproofing membrane and has passed strict construction technology checks. So far, the waterproofing effect is still good.

3. Roof greening

Roof greening is an important part of modern urban construction, and PVC waterproof membranes are also widely used in roof greening. For example, the roof of the underground garage of Weifang Culture and Art Center in Shandong is designed as a planting roof, and root puncture-resistant PVC waterproof membrane is used as the waterproof material. It can not only effectively prevent roof leakage, but also adds a beautiful scenery to the city. In order to avoid the common quality problems of traditional roofs, the Xiong'an Business Service Center is designed as a garden-style planting roof. It uses PVC and other waterproof membranes and uses a non-curing waterproofing system to waterproof the planting roof, which is more in line with the actual needs of the waterproof layer of the planting roof.

In addition to the above application examples, PVC waterproof membrane is also widely used in tunnels, bridges, water conservancy projects, power projects and other fields. Its excellent waterproof performance and good durability have been widely recognized and applied.

In short, as an important waterproofing material, PVC waterproofing membrane's application scope will become more and more extensive as scientific researchers focus more on it, and will gradually develop and improve. In the future, with the continuous advancement of technology and changing social needs, the application prospects of PVC waterproof membrane will also be broader.

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