Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Novel MS sealant for fabricated concrete and preparation method thereof

A technology of MS sealant and concrete, applied in the direction of adhesives, adhesive types, polyether adhesives, etc., can solve the problems of large proportion of MS sealant, colloid thickness and positional deviation displacement, and low bonding strength of sealant. , to achieve the effect of excellent heat aging fixed elongation retention time, high tensile strength and maximum tensile force, and excellent tensile bonding properties

Active Publication Date: 2021-09-21
GUANGDONG ENG POLYTECHNIC COLLEGE
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, due to the high viscosity of the main MS resin of the MS sealant itself, the addition ratio and dispersion uniformity of the filler calcium powder are limited, thereby limiting the performance of the sealant, and unilaterally increasing the filler calcium powder ratio will lead to high viscosity and Low extrusion rate reduces construction efficiency, low bond strength of sealant, and short storage period. Secondly, MS sealant has a large proportion, which may cause poor shape retention during facade construction, resulting in the thickness and position of the glue. Deviation displacement affects the construction effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel MS sealant for fabricated concrete and preparation method thereof
  • Novel MS sealant for fabricated concrete and preparation method thereof
  • Novel MS sealant for fabricated concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 25 parts of STP silane-modified polyether resin, 5 parts of pigment, 45 parts of calcium powder filler, 0.6 part of dispersant, 0.6 part of thixotropic agent, 22.6 parts of plasticizer, 0.6 part of coupling agent, and 0.6 part of water-removing agent.

[0036] Among them, the STP silane-modified polyether resin is selected from Jiangsu Ruiyang Antai New Material Technology Co., Ltd., and the product grade is 30000T.

[0037] Among them, the pigments include carbon black and titanium dioxide.

[0038] Among them, the calcium powder filler is selected from Guangxi Hezhou Kelong Powder Co., Ltd., including 800 mesh heavy calcium carbonate and 1300 mesh light calcium carbonate. The ratio of heavy calcium carbonate and light calcium carbonate is 1:1.

[0039] Among them, the dispersant is a polymer polyamide dispersant selected from Guangzhou Core New Material Technology Co., Ltd., the product brand is DISPER S35, and the molecular weight is 6500.

[0040] The preparation m...

Embodiment 2

[0057] The difference between this embodiment and embodiment 1 is:

[0058] 23 parts of STP silane-modified polyether resin, 10 parts of pigment, 45 parts of calcium powder filler, 0.3 part of dispersant, 0.7 part of thixotropic agent, 20 parts of plasticizer, 0.5 part of coupling agent, and 0.5 part of water remover.

[0059] The dispersant is a high-molecular polyamide dispersant, selected from Guangzhou Core New Material Technology Co., Ltd., the product brand is DISPER S9500, and the molecular weight is 15,000.

[0060] The thixotropic agent is a powdered polyamide thixotropic agent selected from Guangzhou Core New Material Technology Co., Ltd., and the product brand is PAMID D520.

[0061] The plasticizer is dioctyl phthalate.

[0062] The preparation method of this example differs from Example 1 in that: in step (2), adjust the co-rotating disc and the gear disc to disperse and stir at 10 Hz; Continue to stir and disperse for 1 hour under the same conditions; in step (...

Embodiment 3

[0064] The difference between this embodiment and embodiment 1 is:

[0065] 30 parts of STP silane-modified polyether resin, 1 part of pigment, 50 parts of calcium powder filler, 1 part of dispersant, 1 part of thixotropic agent, 25 parts of plasticizer, 1 part of coupling agent, and 1 part of water remover.

[0066] The dispersant is a polymer polyamide dispersant, selected from Guangzhou Core New Material Technology Co., Ltd., the product brand is DISPER S9300, and the molecular weight is 16000.

[0067] The thixotropic agent is a powdered polyamide thixotropic agent selected from Guangzhou Core New Material Technology Co., Ltd., and the product brand is PAMID D580.

[0068] The preparation method of this example differs from Example 1 in that: in step (2), adjust the co-rotating disc and the gear disc to disperse and stir at 20 Hz; Continue to stir and disperse for 2 hours under the same conditions; in step (4), adjust the revolving disk and gear disk to 20Hz, turn on the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a novel MS sealant for fabricated concrete and a preparation method thereof. The novel MS sealant comprises the following components: STP silane modified resin, a pigment, a calcium powder filler, a dispersing agent, a thixotropic agent, a plasticizer, a coupling agent and a water removal agent. Through the hydrogen-bond interaction and steric hindrance effect formed by the dispersing agent, the viscosity of the system is greatly reduced, and the uniform arrangement of the filler is improved, so that a more compact three-dimensional interpenetrating body structural adhesive is formed, the cohesiveness and storage stability of the MS sealant are improved, and the particle problem of the MS sealant is solved. Meanwhile, the MS sealant system is endowed with good thixotropy through the thixotropic agent, the common industrial problem that the extrudability becomes poor after storage is eliminated, and the MS sealant is easier to construct in the construction process.

Description

technical field [0001] The invention relates to MS sealant, in particular to a novel MS sealant used in prefabricated concrete and a preparation method thereof. Background technique [0002] Structural joints refer to the joints set between two adjacent buildings or two parts of buildings to avoid temperature expansion and contraction, foundation settlement and earthquake collision, including construction joints, expansion joints, settlement joints and seismic joints, etc. seam. In order to prevent corrosion between the structural joints, it is necessary to pour sealant between the structural joints. [0003] The prefabricated concrete structure sealant is a cross-linked polymer based on silane-terminated polyether. It is mainly based on MS polymer, and it is a single-component compound composed of fillers, plasticizers and other functional additives. One-component or two-component elastic sealant, also known as MS sealant. MS sealants cross-link or cure through continuou...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/00C09J177/00C09J179/08C09J11/08
CPCC09J171/00C09J11/08C08L79/08C08L77/00
Inventor 王洪波林展鹏
Owner GUANGDONG ENG POLYTECHNIC COLLEGE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com