Anticorrosive tape Application domain introduction
Anticorrosive tape is used in many fields, but attention should be paid to related matters when used, so that subsequent problems can be reduced.
Lay the road of globalization with excellent products
Based on the international market, what products are excellent products? Dongying blue sky plastic believes that we must achieve four points: first, conform to the requirements of world standards; this is the basic; second, meet the world's differentiated climate characteristics and special needs; third, safety, health, green, environmental protection; fourth, high quality stability. In line with world standards
In terms of structural anticorrosive adhesive tape, there are three main systems in the world: China GB 16776, American ASTM C1184, British BS EN 15434 and European ETAG 002. Among them, the requirements for anticorrosive adhesive tape in British and European standards are basically the same, and can be classified as one category. There are differences between the three criteria. The national standard is based on the US standard, but there are more stringent requirements in terms of tensile strength, elongation at strength and interface damage area. The US standard emphasizes more on ultraviolet aging time, 5000 hours (208 days, about 7 months), and the corresponding national standard only needs 300 hours (12.5 days). The water quality of the European standard is 1008 hours (42 days), which is much more than that of the American Standard and the national standard. It also increases the strength and the area of the adhesive damage area after the environmental treatment such as salt mist, sulfur dioxide gas and cleaning agent, as well as the gas package, elastic recovery rate, shrinkage rate, tear resistance, mechanical fatigue and creep. In the result evaluation, besides the standard value (rather than the arithmetic mean value), the European standard uses the ratio between the strength after aging and the initial strength, and the ratio is greater than 0.75. That is to say, the strength of the structural adhesive should not exceed 25% after various aging tests or various aging tests, so as to evaluate the stability of the structural adhesive performance.
Each standard has its own characteristics and requirements. According to different laws and regulations, customers choose what standard to use. When selecting structural adhesive products, they need to be matched with local specifications. To occupy the global market, there must be products that conform to the norms of the world. Therefore, the "Baiyun" brand anticorrosive adhesive tape has introduced the product system to the national standard, the US standard and the European standard three standards respectively, in order to meet the standard demand of all parts of the world. This has also become the "admission ticket" of Dongying blue sky plastic to the world.
Climate is a matter of great concern to all countries. Even some scholars predict that with the warming of global climate, extreme climate events will become more frequent and intense. Whether it is hot Africa, cold polar regions, or earthquake prone areas, typhoons and sea areas. The complicated and changeable climate characteristics of the world require that anticorrosive adhesive products must be protected by "super standard" and "foolproof". For example, in some parts of Russia, the winter temperature reached -55 degrees Celsius, while the standard of each structural adhesive only specified the performance of structural adhesive at -30 C. At this point, although some structural anticorrosive tapes are "up to standard", they will become brittle and lose rubber elasticity at a super standard low temperature, which has always brought about a drop in adhesion and brought great hidden danger to curtain wall engineering safety.
For example, the Sichuan Liangshan tobacco companies, built in 2005, is located in the nine degree seismic zone. The curtain wall construction at that time was comprehensively evaluated by experts, and it was repeatedly demonstrated that the Baiyun SS921 super high performance structural anticorrosive adhesive tape with a tensile bond strength of 2.5 times the national standard was selected to meet the high strength seismic demand. In 2008, the curtain wall of tobacco companies in Liangshan, Sichuan was tested intact by the Wenchuan earthquake. Facts have proved that the high seismic area needs more high-performance anticorrosive adhesive tape products, which improves safety factor and prolongs the service life. Radiation cross-linked polyethylene heat shrinkable sleeve