Film-forming auxiliary agent prepared by utilizing organosilicon polymer and used for construction metal formwork release agent
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A technology of metal templates and film-forming aids, which is applied in the direction of lubricating compositions and the petroleum industry. mod effect
Inactive Publication Date: 2017-03-22
DONGZHI OASIS ENVIRONMENTAL PROTECTION CHEM
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Problems solved by technology
At present, with people's in-depth research on release agents, silicone polymer resin emulsion dispersion system products have emerged as the times require, but their use costs are high, and there are certain environ...
Method used
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Embodiment 1
[0024] (1) Add 15 parts of silicone polymer and 5 parts of chlorinated polyethylene to 30 parts of isopropanol, disperse evenly, heat to reflux state and mix for 10 minutes, then add 6 parts of hydrogenated rosin glyceride and 5 parts of polyvinyl alcohol Butyral, continue to reflux heat preservation and mix 10min, obtain material I;
[0025] (2) Fully mix 4 parts of emulsified silicone oil and 5 parts of turpentine oil, then add 3 parts of squash gum, 3 parts of rice bran wax and 1 part of sulfated castor oil, heat to 80-85 ° C and mix for 10 minutes, and then transfer the obtained mixture to Put it in the environment of -5-0°C for 12 hours, then heat it to 65-70°C and mix it for 5 minutes to obtain material II;
[0026] (3) Add material II, 4 parts of pregelatinized starch, 2 parts of tea seed powder, 1 part of lanolin and 0.5 part of disodium hydrogen phosphate to material I, mix well, and the resulting mixture is sent into a ball mill and ball milled to The fineness is le...
Embodiment 2
[0031] (1) Add 20 parts of silicone polymer and 5 parts of chlorinated polyethylene to 35 parts of isopropanol, disperse evenly, heat to reflux state and mix for 10 minutes, then add 6 parts of hydrogenated rosin glyceride and 4 parts of polyvinyl alcohol Butyral, continue to reflux heat preservation and mix 10min, obtain material I;
[0032] (2) Fully mix 5 parts of emulsified silicone oil and 4 parts of turpentine oil, then add 4 parts of squash gum, 2 parts of rice bran wax and 2 parts of sulfated castor oil, heat to 80-85 ° C and mix for 10 minutes, and then transfer the obtained mixture to Put it in the environment of -5-0°C for 12 hours, then heat it to 65-70°C and mix it for 5 minutes to obtain material II;
[0033] (3) Add material II, 6 parts of pregelatinized starch, 2 parts of tea seed powder, 1 part of lanolin and 0.5 part of disodium hydrogen phosphate to material I, mix well, and the resulting mixture is sent into a ball mill and ball milled until The fineness i...
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Abstract
The invention discloses a film-forming auxiliary agent prepared by utilizing an organosilicon polymer and used for a construction metal formwork release agent, and relates to the technical field of release agents. The film-forming auxiliary agent is prepared from the following raw materials in parts by weight: 15 to 20 parts of the organosilicon polymer, 6 to 11 parts of hydrogenated rosin glycerin ester, 5 to 9 parts of chlorinated polyethylene, 4 to 8 parts of a silicone emulsion, 4 to 8 parts of polyvinyl butyral, 3 to 6 parts of turpentine oil, 3 to 6 parts of sesbania gum, 3 to 6 parts of pregelatinized starch, 2 to 4 parts of rice bran wax, 2 to 4 parts of tea seed powder, 1 to 2 parts of sulfated castor oil, 1 to 2 parts of lanolin, 0.5 to 1 part of disodium hydrogen phosphate and 25 to 35 parts of isopropanol. The film-forming auxiliary agent provided by the invention can significantly improve the film-forming properties of a release agent, can effectively shorten the curing and film-forming time of the release agent, can reinforce the adhesion force of a formed film layer, avoids the occurrence of phenomena of air pores and pulverization of the film layer in the process of use, thereby facilitating to improving release effect.
Description
[0001] Technical field: [0002] The invention relates to the technical field of release agents, in particular to a film-forming auxiliary agent for a release agent for a building metal formwork prepared from an organosilicon polymer. [0003] Background technique: [0004] Concrete molding needs to be fixed by building formwork, and the formwork needs to be removed after the concrete has formed a certain strength. In order to prevent the concrete from adhering to the formwork during the formwork removal process and increase the difficulty of handling the formwork, a release agent is usually sprayed on the inner wall of the formwork. The release agent acts as isolation and lubrication between the formwork and the concrete surface to overcome the bond between the formwork and the concrete surface, so that the formwork can be separated from the concrete when the formwork is removed, which not only keeps the shape of the concrete intact, but also protects the surface of the formwo...
Claims
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Application Information
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