Wuhan Handern Plastic Waterproof Coil
DATE：2020/5/11 8:31:39 / READ： / SOURCE：This station
Wuhan Handern Plastic Waterproof Coil
Building waterproofing is an important part of renovation projects. Traditional waterproof membranes often use bitumen membranes or petroleum asphalt paper tire felt products. Although this ancient waterproof material has good waterproof performance, it has poor aging resistance, large temperature sensitivity, extensibility, heat resistance and low temperature performance Poor, the country has recently restricted its development. In order to meet the ever-expanding market demand, in recent years, the focus has been on developing polymer waterproof membranes (including plastic waterproof membranes). www.handern.com Meltblown non-woven equipment1. As a building waterproof material, the polymer waterproof membrane is required to have the following properties: www.handern.com meltblown nonwoven fabric equipment
1. Extensibility
The building waterproofing membrane should have a relatively large elongation in order to adapt to changes in the base material or cracks. Elongation refers to the ratio of the elongation of the sample to the original length when it is stretched to break. The extension of rubber waterproof membranes can reach 400% ~ 500%, and the extension of plastics can reach 200% + 250%. www.handern.com Meltblown non-woven equipment
2. Low temperature flexibility
The waterproof coiled material is used outdoors, and the use temperature may be low in winter. If the brittleness occurs at low rent, the waterproofing may be caused by the cracking of the base layer. There are two commonly used methods for expressing low-temperature flexibility: one is the low-temperature bending test; the other is the elongation at low temperature or the percentage of elongation at room temperature, such as the Japanese standard JISA6008 "synthetic polymer waterproof membrane" The elongation should be greater than 450% at 20C, and greater than 200% at -20C. www.handern.com Meltblown non-woven equipment
3. Impermeability
This performance indicates whether the coil is dense and has pinholes. Use a special impermeable instrument (GB 328 (specified in the bituminous waterproof membrane test method) to determine.
4. Perforation resistance
Indicates whether pinhole leakage will occur when the roof is hit by a heavy object. CB12952-91 (polyethylene waterproof membrane) has corresponding test methods.
5. Weather resistance
It is usually treated by heat aging method within a specified temperature time, and its weather resistance is expressed by the relative change rate of certain properties, such as the relative change rate of tensile strength, elongation at break and low temperature performance; Methods, specify temperature, humidity, rainfall and ultraviolet light exposure.
6. There is a certain acid and alkali resistance www.handern.com meltblown non-woven equipment
Usually the sample is immersed in a certain concentration of acid and alkali solution for a certain period of time, and the relative change rate of certain properties is measured to indicate its acid and alkali resistance.
2. Wuhan Modern Plastic Waterproof Coil as a member of polymer waterproof membrane has the following performance advantages:
(1) Good extensibility can adapt to the cold and hot expansion and contraction of the base layer without cracking, etc .; charm wood.
(2) Good low temperature performance i can maintain good flexibility and elongation at low temperature:
(3) The mechanical properties and permeability resistance are good. Their tensile strength, tear strength and wear resistance are very good, so it is not easy to be damaged by machinery;
(4) Long service life Through reasonable formulation design, use of appropriate additive table and reasonable design and construction of waterproof system, plastic waterproof membrane has good weather resistance and heat resistance, so the service life is better than asphalt linoleum Much longer; www.handern.com meltblown non-woven equipment
(5) Simple construction. Plastic waterproof coiled materials can be cold-constructed. Generally, they are single-layer waterproof and can be laid or pasted. Compared with the roof waterproof system of asphalt linoleum, three felts and four oils, the single-layer structure of plastic waterproof membrane is much simpler, saving time and labor, and the construction cost is low; in addition, compared with rubber waterproof membrane, its raw material is relatively cheaper, easy;
(6) A certain degree of decoration The single-layer plastic waterproof membrane roofing waterproofing system exposed to the construction, the coiled material can be colored to give the roof decoration.
Because of the above-mentioned advantages of plastic waterproof membrane, its usage is increasing, more and more varieties, and its performance is constantly improving. In recent years, it has been rapidly developed and its application is widely remembered. www.handern.com Meltblown non-woven equipment
Author：admin