Waterproof sealant at joints of prefabricated external wall panels of prefabricated buildings and production process thereof

A technology for waterproof sealing and exterior wall panels, which can be used in buildings, building components, building structures, etc., and can solve problems such as reducing the aesthetics and image value of buildings, surrounding pollution that is difficult to remove, and weak silicone adhesive bonding. , to achieve the effect of high-strength weather resistance, long service life and fast surface drying time

Pending Publication Date: 2020-12-18
NANNING UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional silicone sealant will precipitate silicone oil, making it adhere to pollutants, especially when using porous materials such as stone and concrete, it will cause difficult-to-remove pollution to the surrounding area
It is one of the main sources of pollution on the facade of buildings, which greatly reduces the aesthetics and image value of buildings. Silicone adhesives h

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
  • Waterproof sealant at joints of prefabricated external wall panels of prefabricated buildings and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The preparation method of the waterproof sealant at the seams of prefabricated exterior wall panels of prefabricated buildings, the specific steps are as follows;

[0024] Step 1: Add MS polymer, polyether polyol, nano-calcium carbonate, polyamide wax, ultraviolet absorber and absolute ethanol into the reaction kettle, disperse at high speed for 30 minutes and then raise the temperature to 120 degrees Celsius to obtain mixture A;

[0025] Step 2: Add meteorological silica, dibutyltin dilaurate and nano-diatomaceous earth to mixture A in sequence, after stirring for 30 minutes, cool down to 80 degrees Celsius, and keep warm for 2 hours to obtain mixture B;

[0026] Step 3: Add antibacterial agent, crosslinking agent, flame retardant, curing agent and curing accelerator to mixture B in sequence, stir for 20 minutes and raise the temperature to 100 degrees Celsius, and keep it warm for 1 hour to obtain mixture C;

[0027] Step 4: Dehydrate the mixture C under vacuum for 1-...

Embodiment 1

[0030] Raw material formula: including 15 parts of MS polymer, 10 parts of polyether polyol, 10 parts of nano calcium carbonate, 2 parts of polyamide wax, 2 parts of coupling agent, 2 parts of catalyst, 6 parts of meteorological silica, dibutyl dibutyl 4 parts of tin laurate, 6 parts of nano diatomite, 2 parts of antibacterial agent, 2 parts of crosslinking agent, 2 parts of flame retardant, 2 parts of ultraviolet absorber, 2 parts of curing agent, 2 parts of curing accelerator and anhydrous 50 parts of ethanol.

[0031] Specific steps are as follows:

[0032] Step 1: Add MS polymer, polyether polyol, nano-calcium carbonate, polyamide wax, ultraviolet absorber and absolute ethanol into the reaction kettle, disperse at high speed for 30 minutes and then raise the temperature to 120 degrees Celsius to obtain mixture A;

[0033] Step 2: Add meteorological silica, dibutyltin dilaurate and nano-diatomaceous earth to mixture A in sequence, after stirring for 30 minutes, cool down t...

Embodiment 2

[0038] Raw material formula: including 20 parts of MS polymer, 20 parts of polyether polyol, 15 parts of nano calcium carbonate, 4 parts of polyamide wax, 3 parts of coupling agent, 4 parts of catalyst, 8 parts of meteorological silica, dibutyl dibutyl 6 parts of tin laurate, 7 parts of nano diatomite, 3 parts of antibacterial agent, 3 parts of crosslinking agent, 4 parts of flame retardant, 4 parts of ultraviolet absorber, 3 parts of curing agent, 2 parts of curing accelerator and anhydrous 60 parts of ethanol.

[0039] Specific steps are as follows:

[0040] Step 1: Add MS polymer, polyether polyol, nano-calcium carbonate, polyamide wax, ultraviolet absorber and absolute ethanol into the reaction kettle, disperse at high speed for 30 minutes and then raise the temperature to 120 degrees Celsius to obtain mixture A;

[0041] Step 2: Add meteorological silica, dibutyltin dilaurate and nano-diatomaceous earth to mixture A in sequence, after stirring for 30 minutes, cool down t...

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 waterproof sealant at joints of prefabricated external wall panels of prefabricated buildings and a production process of the waterproof sealant. The waterproof sealant comprises an MS polymer, polyether polyol, nano calcium carbonate, polyamide wax, a coupling agent, a catalyst, fumed silica, dibutyltin dilaurate, nano diatomite, an antibacterial agent, a cross-linking agent, a flame retardant, an ultraviolet absorbent, a curing agent, a curing accelerator and absolute ethyl alcohol. The waterproof sealant at the joints of the prefabricated external wall panels of the prefabricated buildings has the advantages of high waterproof performance, good weather resistance, high cohesiveness, short surface drying time, high tensile strength, high elongation at break, high hardness, high corrosion resistance, high falling resistance, long service life, no toxicity, low cost and the like, and is suitable for large-scale popularization and application. The sealant is ahigh-performance waterproof sealant; the sealant has the advantages that the stress is mild, the sealant has stress and elasticity at the same time, and even if the sealant is in a stretched state fora long time, the influence caused by shrinkage of building base materials can be eliminated to the maximum extent under the action of stress relaxation.

Description

Technical field: [0001] The invention relates to the construction field, in particular to a waterproof sealant at the joints of prefabricated exterior wall panels of an assembled building and a production process thereof. Background technique: [0002] Traditional sealants contain solvents that release formaldehyde and volatile organic compounds, which are harmful to people's physical and mental health. Traditional silicone sealant will precipitate silicone oil, making it adhere to pollutants, especially when using porous materials such as stone and concrete, it will cause pollution that is difficult to remove. It is one of the main sources of pollution on the facade of buildings, which greatly reduces the aesthetics and image value of buildings. Silicone adhesives have relatively weak adhesion, while polyurethane adhesives have strong adhesion, but they need to be used with primers. Construction The substrate will shrink over time, resulting in a tendency for the seam to e...

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
IPC IPC(8): C09J171/00C09J11/04C09J11/06C09J11/08E04B1/68
CPCC09J171/00C09J11/04C09J11/06C09J11/08E04B1/6801E04B1/6806C08K2003/265C08K2201/011C08K2201/003C08K2201/006C08K2003/2248C08L2205/025C08L2205/035C08L71/00C08L77/00C08L5/08C08K13/04C08K3/26C08K3/36C08K7/26C08K5/12C08K3/22
Inventor 梁承权
Owner NANNING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap