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Organosilicon weathering agent for external spray coating for elevated support formwork

A technology of organosilicon and weather resistance agent, which is applied in the field of coating weather resistance agent, can solve problems such as rust spots and surface corrosion, and achieve the effect of improving weather resistance and enhancing weather resistance

Inactive Publication Date: 2017-05-10
DONGZHI OASIS ENVIRONMENTAL PROTECTION CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the elevated support formwork is made of steel, it will also be affected by the external environment, resulting in surface corrosion or rust spots after being washed by rain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 12 parts silicone polymer, 5 parts ultrafine polyimide resin powder, 4 parts bromobutyl rubber, 3 parts hydrogenated rosin pentaerythritol ester, 3 parts chlorinated polyethylene, 2 parts coal ball slag, 2 parts asbestos wool , 1 part of polyaluminum ferric chloride, 1 part of potassium perfluorobutanesulfonate, 2 parts of chaff ash, 1 part of sulfurized lard, 0.5 part of 3-pyrroline and 0.5 part of vanadium oxide are fully mixed to obtain an elevated support Silicone weathering agent for external spray coatings on stencils.

[0020] Preparation of organosilicon polymer: Add 10 parts of silicon micropowder into 2 times weight part of ethanol, disperse evenly, let it stand for 3 hours in the environment of 0-5 ℃, then add 3 parts of polyethylene oxide and 2 parts of C5 hydrogenated petroleum resin, After mixing uniformly, use a microwave reactor for microwave treatment for 3 min, then add 2 parts of sodium polyacrylate and 0.5 part of nano-rubber powder, and after fully ...

Embodiment 2

[0024] 15 parts of silicone polymer, 5 parts of ultrafine polyimide resin powder, 3 parts of bromobutyl rubber, 5 parts of hydrogenated rosin pentaerythritol ester, 2 parts of chlorinated polyethylene, 3 parts of coal slag, 2 parts of asbestos wool , 2 parts of polyaluminum ferric chloride, 1 part of potassium perfluorobutanesulfonate, 1 part of chaff ash, 1 part of sulfurized lard, 0.5 part of 3-pyrroline and 0.5 part of vanadium oxide are fully mixed to obtain an elevated support Silicone weathering agent for external spray coatings on stencils.

[0025] Preparation of organosilicon polymer: Add 10 parts of silicon micropowder into 2 times weight part of ethanol, disperse evenly, let it stand for 3 hours in the environment of 0-5 ℃, then add 3 parts of polyethylene oxide and 2 parts of C5 hydrogenated petroleum resin, After mixing uniformly, use a microwave reactor for microwave treatment for 3 min, then add 2 parts of sodium polyacrylate and 0.5 part of nano-rubber powder, ...

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Abstract

The invention discloses an organosilicon weathering agent for an external spray coating for an elevated support formwork, and relates to the technical field of the coating weathering agent. The organosilicon weathering agent is prepared from the following raw materials in parts by weight: 10-15 parts of an organosilicon polymer, 5-9 parts of ultrafine polyimide resin powder, 3-6 parts of brominated butyl rubber, 3-6 parts of hydrogenated rosin pentaerythritol ester, 2-4 parts of chlorinated polyethylene, 2-4 parts of briquette slag, 2-4 parts of asbestos wool, 1-2 parts of polyaluminum ferric chloride, 1-2 parts of potassium perfluorobutanesulfonate, 1-2 parts of rice chaff ash, 1-2 parts of sulfurized lard, 0.5-1 part of 3-pyrroline and 0.5-1 part of vanadium oxide. The weathering agent as an additive is exclusively used in the external spray coating for the elevated support formwork and can significantly enhance the weatherability of a formed coating, and the weatherability of the coating can be improved by 20%-35% compared a coating containing a conventional ultraviolet absorber additionally.

Description

[0001] Technical field: [0002] The invention relates to the technical field of coating weather-resistant agents, in particular to an organosilicon weather-resistant agent for external spray coatings of elevated support templates. [0003] Background technique: [0004] At present, the elevated support formwork is widely used in the construction of road viaducts. During construction, the concrete mortar can be poured into the formwork only after the formwork has been fixed. The elevated support formwork not only plays the role of shaping and supporting, but also prevents the external environment from affecting the solidified concrete structure through its own isolation, thereby prolonging the service life of the elevated. However, since the elevated support formwork is made of steel, it will also be affected by the external environment, resulting in surface corrosion or rust spots formed after being washed by rainwater. In order to reduce the adverse effect of the external en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12
CPCC09D7/61C09D7/63C09D7/65C09D7/70
Inventor 陈建宇
Owner DONGZHI OASIS ENVIRONMENTAL PROTECTION CHEM
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