Room-temperature-curing three-component polysulfide waterproof sealant and preparation method thereof
A room temperature curing and waterproof sealing technology, which is applied in the field of sealant, can solve the problems of waterproof sealant application and other problems, and achieve the effect of good effect, wide applicability of environmental conditions, and high bonding strength
Active Publication Date: 2013-12-18
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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Problems solved by technology
[0006] In addition, there are many patents and documents related to polysulfide sealant formulations and (or) preparation methods, but all of these patents and documents do not take comprehensive properties such as pot life, curing characteristics, construction performance, bonding performance and mechanical strength as the basis. characteristics, not suitable for application as a waterproof sealant on large ships
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[0034] The present invention will be further illustrated by the description of specific embodiments below, but this is not a limitation of the present invention. Those skilled in the art can make various modifications or modifications according to the basic idea of the present invention, as long as they do not depart from the basic idea of the present invention , are within the scope of the present invention.
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The invention relates to a room-temperature-curing three-component polysulfide waterproof sealant which comprises three components (namely a base paste, a curing paste and a catalytic paste), wherein the base paste comprises the following raw materials in parts by mass: 100 parts of main agent, 20-50 parts of filler, 2-4 parts of plasticizer-diluter and 3-6 parts of assistant; the curing paste comprises the following raw materials in parts by mass: 35-65 parts of curing agent and 35-65 parts of plasticizer-diluter; and the catalytic paste comprises the following raw materials in parts by mass: 2-10 parts of alkaline rubber accelerator, 30-65 parts of plasticizer-diluter and 33-60 parts of filler. The product provided by the invention is used in bulkheads of large-size ships, has favorable effect and is cured under natural conditions in summer and winter; the active period and curing speed of the sealant can be artificially regulated or controlled; and the environmental condition applicability is wide.
Description
technical field [0001] The invention belongs to the technical field of sealants, in particular to a room-temperature-curing three-component liquid polysulfide waterproof sealant and a preparation method thereof. Background technique [0002] Waterproof sealant is widely used in water conservancy, construction, civil air defense, subway, tunnel, highway, environmental engineering, drinking water engineering and other fields. Since the waterproof sealant is under the condition of long-term immersion in water, strict requirements are put forward for the performance of the sealant. For example, anaerobic decomposition is easy to occur in industrial water; the flow rate of water in canals and canals is fast; abrasion and chemical corrosion are easy to occur in water treatment equipment and drinking water tanks; sealing materials are required to cure quickly in coastal engineering; The abrasion and chemical erosion of sand, organic matter and oil produced in sewage treatment ...
Claims
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Login to View More IPC IPC(8): C09J181/04C09J11/04C09J11/06C09K3/10
Inventor 侯永振王绪文孙英富
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP