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Adhesive application in some new industries |
Public date:2019-2-19 Hits：2930 |
Adhesives as a new type of material, then what applications does it have in these new industries?
1. Anti-corrosion of mechanical equipment
At present, the steam pipes of ships use aluminum silicate and asbestos to achieve the purpose of heat insulation, but the condensed water is alternately generated due to leakage or hot and cold, and is accumulated on the outer wall of the steam pipe of the bottom layer; and the steam pipe is subject to high temperature for a long time, soluble salt The effect is that the outer wall is very corroded. To this end, the aluminum silicate bottom layer water glass series adhesive can be used as a coating material to form an enamel-like coating layer having a thermal expansion coefficient similar to that of the pipe material, and the thermal stress is small and does not crack. In mechanical installations, components are often bolted. Long-term exposure of the bolted device to the air creates crevice corrosion. During mechanical work, the bolts sometimes loosen due to severe vibration. In order to solve this problem, the connecting member can be bonded with an inorganic adhesive in a mechanical installation and then bolted. This can not only play the role of reinforcement, but also anti-corrosion effect.
2, used as biomedical
The material hydroxyapatite Ca10(PO4)6(OH)2 (HA) bioceramic composition is close to the inorganic component of human bone, has good biocompatibility, and can form a strong chemical bond with bone. It is ideal. Hard tissue alternative material. However, the HA implants currently prepared have a high general elastic modulus and low strength, and the activity is not satisfactory. Phosphate glass adhesive is selected, and the HA raw material powder is bonded together at a lower than conventional sintering temperature by the action of the adhesive, thereby reducing the elastic modulus and ensuring the material activity. Cohesion Technologies, Inc. recently announced that they have developed a Coseal sealant that can be used for heart bonding and has been successfully used clinically. In comparison with 21 cases of cardiac surgery in Europe, the use of Coseal surgery significantly reduced surgical adhesions compared to other methods. Subsequent clinical studies have shown that Coseal sealant has great potential for development in heart, gynaecology and abdominal surgery. The application of adhesives in medicine has been hailed as a new growth point for the adhesive industry. A structural glue composed of epoxy resin or unsaturated polyester. Among contemporary defense technologies, stealth submarines are one of the symbols of naval equipment modernization. An important method of submarine stealth is to lay a sound-absorbing tile on the submarine's outer shell. The anechoic tile is a rubber with sound absorbing properties. In order to achieve a firm bond between the anechoic tile and the boat wall steel, it depends on the adhesive.
3. Applications in the military field
3.1, tank repair
Cracking in the casing of a tank engine is a common rickety. Defects in the internal structure of the metal, stress concentration, fatigue, and outstanding external force often cause cracks in different parts of the engine body casing. If the welding method is used to solve such problems, there are disadvantages such as the material becoming brittle, deformed, and the strength is lowered, and the electric energy and equipment are also lost. The use of special bonding technology to deal with such cracks will achieve fast, good and economical results.
3.2. Used for military aircraft light bombers
It mainly flies at subsonic or transonic speed. The fuselage and outer skin of the wing are made of aluminum alloy plates with a thickness of 1.5mm or less, and some are only 0.4-0.8mm thick, and the underside is reinforced by corrugated profiles. It is very difficult to rive the skin so thin structure, and the glued structure can not only overcome the deformation caused by the riveted thin skin, the overall strength loss caused by the rivet crating, reduce the tooling, shorten the assembly cycle, and increase the structural corrosion resistance. Sex, fatigue resistance and breakage safety. Adhesives are required for the sealing of modern high-performance military aircraft, the entire fuse tank or the fuselage of the fuselage. The adhesive seal between the plexiglass and the polyester tape of the enemy aircraft requires a high-performance adhesive.
3.3. Preparation of camouflage materials
For the Army ground weapons, the main threat is the 8 ~ 14μm thermal imaging camera. The main way to achieve infrared stealth is to develop infrared camouflage paints with different emissivity. Through the different emissivity of the coating, the target shape is effectively infrared. Image segmentation, the goal of the goal and background. From the research content of infrared stealth coating, high transparent adhesive is one of the technical approaches. The resin in the infrared atmosphere window of 8 ~ 14μm does not contain absorption groups to achieve the low radiation specificity of the adhesive itself in the infrared window. Radar coating is a kind of functional material that can absorb electromagnetic waves, reduce the target radar characteristic signal, and make it difficult to be discovered and recognized. It is one of the main ways to realize radar stealth of weapon equipment. It consists of an absorbent and an adhesive that determines the physical and mechanical properties and construction properties of the absorbent coating.
Huitian New Materials - Started in 1977, specializing in R&D and production of adhesives and new materials. Huitian New Materials is a high-tech enterprise group with strong research and development strength and advanced production technology, focusing on rubber, plastics, new materials, and adhesives. Glue, construction glue, instant glue, new energy glue, chemical new materials, industrial glue, electronic glue, packaging glue, water treatment glue, rail transportation glue, automotive glue, aviation glue and many other industries, to provide you with professional, system Efficient application solutions. |
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