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In recent years, quality problems in the waterproof industry frequently staged, although the waterproof industry has been "small industry" to live, but in fact, waterproof products are closely related to people's daily lives. To this end, we should look abroad, learn advanced technology, equipment, understand the latest waterproof product development trends, digestion and absorption, the development of waterproof products in line with China's current situation of research and development, upgrading and production plans, to promote high-quality waterproof products into the market, promote the healthy and sustainable development of the industry.
ban on "odd" should be put on the agenda
some experts pointed out that the proliferation of counterfeit and non-standard waterproof products, is an important bottleneck hindering the development of the waterproofing industry.
in these market-flooded inferior products, polyethylene acrylic waterproof coel is one of the "top." It is reported that polyethylene acrylic courgnesis was the predecessor of agricultural film, originally used only for agricultural and water conservancy projects impermeable, and later evolved into a composite impermeable film, and improved into polyethylene acrylic composite waterproof coel. According to industry experts, polyethylene acrylic coel regardless of material and construction application reliability, there are major defects, not suitable for use as a waterproof material.
According to reports, the industry produces polyethylene acrylic waterproof coel enterprises are many, but most of them are small workshops, small factories, low investment threshold, 2.3 million yuan can be equipped with a production line, and even some people jokingly called this enterprise as "day farming, open machines at night to produce acrylic coel." What's more, many small manufacturers, small workshops with polyethylene recycled materials to produce coel, some vendors to make foreign garbage into polyethylene recycled materials sold to the workshop, with its production of polyethylene acrylic waterproof coel color gray, hard and brittle, a little force may tear apart. This production of polyethylene acrylic waterproof coel quality is poor, after use can not play a waterproof role.
Polyethylene acrylic waterproof coel in the construction and installation process, the use of cement adhesive method, cement glue coating film's material and chemical properties and polyethylene film is completely different, which makes polyethylene acrylic waterproof coel and grass-roots bonding, coel and coel jointing, pipe root, drop mouth, yin and yang angle and other structural complex detail node processing is unreliable, so that the waterproof effect is greatly discounted or not waterproof at all.
the same time, polyethylene acrylic is used as a waterproof material, except in China, there is no second country.
AMI Market Consulting UK and the National Roofing Engineering Association are leading market research institutions in Europe and the United States, in their annual waterproof materials market report data, involving all major waterproof materials in the Chinese market and most other waterproof materials, only polyethylene propylene as waterproof material data.
But this is such a product identified by many experts as "not waterproofing function", but occupies more than 30% of the domestic waterproof materials market share, squeezing other high-quality waterproof products market, become a global waterproof market a "wonderful". Therefore, such a material itself and construction technology have defects and problems of the "odd" out of the waterproof industry, should be put on the agenda as soon as possible, the whole industry to carry out action.
"His Mountain Stone" to learn from the experience
Europe and the United States in the building waterproof materials in the forefront of the world, in the modified asphalt waterproof coel and PVC, TPO and other polymer waterproof sheet waterproofing technology advanced. Modified asphalt linoleum and polymer waterproof sheet are developed by developed countries in Europe and the United States, and then transmitted to other countries. With the continuous development of roof waterproof coel and other construction technology, as well as the emergence of a variety of single-layer polymer sheet, the foreign waterproof market is also evolving.
At present, the main body of waterproof product development and application in the world is around the world, such as energy conservation, environmental protection, resource conservation, labor saving, construction is simple, safe and efficient, etc. as the direction of new product development. These concepts are fully reflected in the launch of solar roofing in Germany, the rapid growth of TPO coels, and so on.
To plant roofing, for example, it can filter out dust to alleviate air pollution, can moist and dry urban air, can also adsorption of noise and reduce noise reflection in winter to play a role in keeping warm and summer to cool down, while avoiding the densely populated areas of the heat island effect. Planting roofing in recent years in Western Europe, the United States, Japan and other countries quietly rise, the rise of rapid growth. Planting roofing generally includes planting layer, drainage and filtration layer, separation layer, waterproof root layer, moisturizing layer, steam barrier layer, grass floor, etc. , the most important of which is waterproof layer, it should have both waterproof and prevent plant root penetration function.
like asphalt roofing system, it is also the most reliable and widely used waterproofing system in Europe, America and Japan, mainly due to a well-maintained thermal construction laminate roofing system, which can be used for a longer period of time. In addition, in the harsh climatic conditions, the system wind resistance is good, not easy to be blown up by the wind, not easy to be punctured by objects, at the same time, the system layer and layer through liquid asphalt combined to form a whole, in the finished roof, in fact, there is no seam, it eliminates the seam this weak link. In addition, when asphalt is applied directly to the concrete roof panels of the structure or to the panels of the insulation house, the entire roof can be considered to be a fully adhesion system, and one of the great benefits of such a full-stick system is the ability to distribute the stress on the building such as wind load, vibration and bending. Thermal asphalt construction, the use of modern equipment to control asphalt temperature, viscosity and flue gas emissions, not only to protect the environment, but also improve the quality of construction.
promote the development of high-quality products
under the rapid development of waterproof materials in foreign buildings, the domestic new building waterproof materials are also developing rapidly, and constantly progress. Many of the industry's top enterprises through the introduction and reference of foreign advanced equipment and technology, improve China's modified asphalt waterproof coel, polymer waterproof coel and sealing materials, such as the technical level, the development of new building waterproof coel, new building
waterproof paint
, new building sealing materials and new leak-blocking materials and other categories. These waterproof materials are very beneficial in both quality and performance, should be promoted in the market as soon as possible, replacing non-standard and counterfeit inferior waterproof products.
To SBS modified asphalt waterproof coelwood as an example, its SBS rubber modified petroleum asphalt as an invasive covering layer, polyester nonwovens, jute cloth, glass felt, etc. are produced as a fetal base, plastic film as anti-stick isolation layer, selected materials, ingredients, co-melting, invasive stains, composite molding, curling and other processes processing production. Its mechanical performance is excellent, high tensile strength, large elongation, tear resistance, a wide range of applicable temperatures, can be used in the temperature range of -25 to 100 degrees C, especially suitable for use in cold areas, excellent corrosion resistance, while mold resistance, weather resistance is good. In terms of construction, SBS waterproof coel using hot melting method construction, all year round can be constructed, hot seams reliable durability, is a widely used in all countries of the world waterproof performance excellent materials.
And in recent years in Europe and the United States, the rise of TPO waterproof coel, that is, thermoplastic polyolefin waterproof coel, is petroleum resin and ethylene, acetic acid, ethylene resin as the base material, add antioxidants, anti-ionizing agents, softeners, and surface with fabric fibers, aluminum film and made of a new waterproof coel. TPO waterproof coel combines the performance advantages of EPDM and PVC with the former's weather resistance, low gentleness and the latter's weldable properties. Unlike conventional plastics, this material shows high elasticity of rubber at room temperature and can be molded like plastic at high temperatures. Therefore, this material has good processing and force properties, and has high welding properties. In practice, TPO shows the comprehensive characteristics of anti-aging, high stretching strength, large elongation, wet roofing can be constructed, exposed without protective layer, convenient construction, non-polluting and so on.
addition, polymer waterproof
coatings
modified asphalt waterproof coatings and other waterproof products should also be included in China's waterproof industry production and promotion schedule. Through the promotion of these high-quality waterproof products, and constantly compress the market share of non-standard and counterfeit waterproof products, so that it can be launched as soon as possible, to protect the rights and interests of consumers at the same time, to promote the healthy development of the industry.
An expert has said that the waterproofing industry should vigorously develop modified asphalt waterproof coel, actively promote polymer waterproof coel, appropriate development of waterproof coatings, and strive to develop sealing materials, and pay attention to the development of water-stopping, leak-blocking materials and hard polyurethane foam waterproof Insulation integrated materials, gradually reduce low-grade materials, correspondingly increase the proportion of various types of high-grade materials, improve the overall level of waterproof materials in China, correspondingly solve the relevant construction tools, supporting materials and construction technology, reduce leakage of buildings, to ensure the use of waterproof project life gradually increased.
"Safety is no small matter, quality problems", in the face of the current industry quality problems, waterproof enterprises must be through their own technological progress, the elimination of backward products hard work, look at the world, learn lessons, access to "foreign aid", all-round promotion of waterproof product quality improvement and type upgrading, and thus promote the transformation and development of the industry.