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Preparation method of a degradable cement structure joint-filling isolation composite material

A technology of composite materials and structures, applied in the direction of building insulation materials, building structures, construction, etc., to meet the needs of cold shrinkage and heat expansion, reduce production costs, high elasticity and recovery effects

Active Publication Date: 2016-11-16
北京中科安途交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing technology disclosed at present is mainly to research and prepare products such as degradable plastics and packaging materials, and there is no related cement structure that can be quickly disintegrated and degraded for use in cement structures such as cement pavements and cement fields. Report on the preparation method of the material

Method used

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preparation example Construction

[0032] A preparation method of a degradable cement structure joint-filling and isolation composite material. The components of the preparation method are counted in parts by mass, and the steps are as follows:

[0033] 1) Preparation of plant powder main composite plate components

[0034] At room temperature, first mix 50-42 parts of plant micropowder with 46-50 parts of 40% soluble starch paste and mix evenly, then add 3.5-7 parts of cellulose micropowder and 0.5-1.0 part of superabsorbent resin micropowder for further stirring and mixing . According to the length, width and thickness of the designed plant powder main composite plate, add the above mixture into the mold for molding the plant powder main composite plate. The inner surface of the mold is coated with LUBKO1425 release agent in advance, and pressurized at 110-120 ° C. Molding, the pressure is 20-25MPa, and after 30 minutes, the temperature is lowered and the mold is demoulded to prepare a composite plate with a...

Embodiment 1

[0046] Implement a preparation method of a degradable cement structure joint-filling and isolation composite material, the components of the preparation method are counted in parts by mass, and the steps are as follows:

[0047] 1) Preparation of plant powder main composite plate components

[0048] At room temperature, 50 parts of vegetable powder and 46 parts of 40% soluble starch paste were first stirred and mixed evenly, and then 3.5 parts of cellulose micropowder and 0.5 part of superabsorbent resin powder were added and further stirred and mixed evenly. According to the length, width and thickness of the designed plant powder main composite plate, add the above mixture into the mold for molding the plant powder main composite plate. The inner surface of the mold is coated with LUBKO1425 release agent in advance, and pressurized at 110-120 ° C. Molding, the pressure is 20-25MPa, and after 30 minutes, the temperature is lowered and the mold is demoulded to prepare a compos...

Embodiment 2

[0054] Implement a preparation method of a degradable cement structure joint-filling and isolation composite material, the components of the preparation method are counted in parts by mass, and the steps are as follows:

[0055] Preparation of composite board components with vegetable powder as the main body

[0056] At room temperature, 42 parts of plant micropowder and 50 parts of 40% soluble starch paste were stirred and mixed evenly, and then 7 parts of cellulose micropowder and 1 part of superabsorbent resin micropowder were added to further stir and mix evenly. According to the length, width and thickness of the designed plant powder main composite plate, add the above mixture into the mold for molding the plant powder main composite plate. The inner surface of the mold is coated with LUBKO1425 release agent in advance, and pressurized at 110-120 ° C. Molding, the pressure is 20-25MPa, and after 30 minutes, the temperature is lowered and the mold is demoulded to prepare ...

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Abstract

A preparation method of a degradable cement structure gap-filling and isolation composite material, the method uses plant powder, soluble starch, cellulose powder, and superabsorbent resin powder as raw materials to obtain a composite plate with a main body of plant powder; and then polymethylene Based polyphenyl polyisocyanate, foam stabilizer, polyether polyol, and fluorodichloroethane as raw materials to produce a cement structure joint-filling isolation composite material containing polyurethane elastic foam sealing strip and degradable main body. The composite material can begin to crack and degrade the main plate after the cement structure is solidified, and finally disappears, eliminating the release of the stress when the cement structure expands and contracts with heat and cold, and can effectively prevent rain, snow, and gravel from entering the expansion and contraction process. The joint can prolong the service life of the cement structure, especially in the construction process of the cement road, which has a positive and significant use effect, and eliminates the dust and noise pollution generated when the existing method cuts the expansion joint of the cement structure.

Description

technical field [0001] The invention relates to a preparation method of a degradable cement structure joint-filling and isolation composite material, which belongs to the field of concrete road construction materials, and specifically relates to a method for blending and molding composite materials using soluble starch, plant micropowder, cellulose micropowder, superabsorbent resin micropowder, etc. The invention discloses a preparation method of a cement structure joint-filling isolation composite material containing a polyurethane elastic foam sealing strip and having a degradable main body prepared by pouring and compounding polyurethane elastic foam materials. technical background [0002] Cement structures such as cement pavements and cement sites are very common in our daily life. During the pouring process of cement structures, a large amount of heat will be released during the cement setting and hardening reaction, which will cause the temperature of the concrete to r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/12B29C44/04C08L3/02C08L97/02C08L1/02C08L95/00C08L75/08C08G18/48C08G18/32C08K5/12C08J9/14C08G101/00
Inventor 王畅铭姚亮于泳潭
Owner 北京中科安途交通科技有限公司
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