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Cavity expanding glue and coating method
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A cavity and coating technology, applied in adhesives, epoxy resin glue, natural rubber adhesive, etc., can solve the problems of high construction cost, troublesome operation of pre-embedded pipelines, etc., and achieve the effect of reducing construction cost
Inactive Publication Date: 2019-01-04
SHANGHAI JIANWEI CULTURAL HERITAGE CONSERVATION TECH CO LTD
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Description
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[0003] The object of the present invention is to provide a kind of cavity expansion glue and its coating method, by taking rubber and filler as the main material, and adding plasticizer, resin, crosslinking agent, coupling agent, foaming agent and curing agent, Auxiliary and zincoxide, add rubber solvent to stir and dissolve at the same time to form a coating slurry, when the coating slurry is poured into the pipeline, the pipeline wall adheres to the coating slurry, and the adhered coating slurry is heated to expand and solidify to form a sealant layer. In this way, pipeline maintenance is formed, which solves the problems of troublesome operation and high construction cost that existing embedded pipelines are damaged and need to be replaced.
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Embodiment 1
[0024] A film coating method of cavity expansion glue, comprising the steps of:
[0025] Step 1. Raw materialprocessing: Weigh the rubber, filler, plasticizer, resin, crosslinking agent, coupling agent, foaming agent, curing agent and additives according to the weight ratio of the formula, and put them into the internal mixer in sequence. Kneading to obtain a mixed compound;
[0026] Step 2, passing the obtained mixed rubber material through a rubber granulator to support particles of rubber particles with a size of 0.25-2cm;
[0027] Step 3: Add the rubber solvent into the mixing tank, add rubber particles to the mixing tank and stir for 2-3 hours, then add zinc oxide powder and stir for 24-48 hours to obtain the coating material, and heat the coating material to form a flow state;
[0028] Step 4. After cleaning the required coating pipeline, block the pipeline outlet; pour the coating material from the entrance of the pipeline, and after filling the pipeline, open the pip...
Embodiment 2
[0033] A cavity expansion glue, comprising the following components in parts by weight: 50 parts of rubber, 60 parts of filler, 20 parts of plasticizer, 25 parts of resin, 10 parts of crosslinking agent, 4 parts of coupling agent, 3 parts of foaming agent parts, 3 parts of curing agent, 150 parts of rubber solvent, 20 parts of additives and 30 parts of zinc oxide.
[0037] Preferably, the filler is kaolin. Preferably, the plasticizer is diethyl phthalate.
[0038] Preferably, the rubber comprises 40% natural rubber and 60% styrene-butadiene rubber.
Embodiment 3
[0040] A cavity expansion glue, comprising the following components in parts by weight: 40 parts of rubber, 80 parts of filler, 25 parts of plasticizer, 30 parts of resin, 10 parts of crosslinking agent, 3 parts of coupling, 4 parts of foaming agent , 2 parts of curing agent, 165 parts of rubber solvent, 25 parts of additives and 40 parts of zinc oxide.
[0041] Preferably, the resin is a copolymer resin.
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Abstract
The invention discloses cavity expanding glue and a coating method, and relates to the technical field of building materials. The cavity expanding glue comprises the following components in parts by weight: 40-60 parts of rubber, 40-80 parts of a filler, 15-30 parts of a plasticizer, 20-30 parts of resin, 5-12 parts of a crosslinking agent, 3-5 parts of a coupling agent, 1-5 parts of a foaming agent, 1-5 parts of a curing agent, 100-200 parts of a rubber solvent, 10-30 parts of an adding auxiliary and 25-45 parts of zincoxide. Rubber and the filler are taken as main body materials, the plasticizer, the resin, the crosslinking agent, the coupling agent, the foaming agent, the curing agent, the auxiliary and the zincoxide are added, meanwhile, the rubber solvent is added and is stirred anddissolved to form coatingslurry, the coatingslurry is filled in a pipe, and adheres to the wall of the pipe, the adhered coating slurry is heated, expanded and cured to form a sealant layer, therefore, the pipe is repaired, and the problems that when an existing embedded pipe is damaged and needs to be changed, operation is troublesome, and the construction cost is high are solved.
Description
technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a cavity expansion glue and a film coating method of the cavity expansion glue. Background technique [0002] Pipelines used to transport fluids are subject to different modes of failure. Pipeline failures can begin at locations characterized by corrosion or other imperfections in the pipe wall. If the corrosion or other defects are known, the pipeline can be maintained preventatively. For example, the conduit may be repaired, replaced or otherwise maintained. In some cases, preventive maintenance of pipelines can prevent or reduce the likelihood of failure, prolong the useful life of pipelines, and reduce the costs associated with repairs and downtime. As such, assessments regarding the state of the pipeline can be important in determining whether maintenance is warranted, what type of maintenance should be performed, and the timing of the maintenance. ...
Claims
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Application Information
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