Fireproof glue and preparation method thereof

A technology of fireproof glue and silica sol, which is applied in the direction of adhesives, polymer adhesive additives, adhesive additives, etc., can solve the problems of increasing the content of organic components, unfavorable fireproof performance, and rising space temperature, so as to reduce the content of organic matter , Improve the comprehensive fire prevention ability and reduce the effect of space temperature

Inactive Publication Date: 2021-02-12
LUYANG ENERGY SAVING MATERIALS CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The representative product abroad is 3ME-Mat heat-absorbing fireproof wrapping coil; however, organic binder (acrylic resin) is used when covering aluminum foil, which increases the organic component content of the whole product, which is not conducive to the comprehensive improvement of the product's fireproof performance. Especially when a fire occurs in a closed space, the product will release more heat in case of fire, causing the temperature of the space to rise sharply

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The present invention provides a method for preparing the fireproof adhesive described in the above technical solution, which is prepared by a sol-gel method, comprising:

[0036] Concentrate the liquid sodium silicate, silica sol, polyvinyl alcohol and defoamer after polymerization to obtain a mixed sol, and record this defoamer as the first defoamer;

[0037] The mixed sol, heat-absorbing powder, expansion powder, fiber, dispersant, wetting agent and defoamer are mixed to obtain a fireproof glue, and this defoamer is recorded as the second defoamer.

[0038] In the present invention, the temperature of the polymerization reaction is preferably 60-180°C, more preferably 80-160°C, most preferably 100-120°C; the polymerization reaction is preferably carried out under stirring conditions, and the stirring The frequency is preferably 60 to 120 r / min, more preferably 80 to 100 r / min.

[0039] In the present invention, the concentration time is preferably 180-240min, more p...

Embodiment 1

[0047] Weigh liquid sodium silicate (solid content 25%) 700g, silica sol 300g (solid content 30%) mix, add the polyvinyl alcohol (polymerization degree 2000, alcoholysis degree 99%) aqueous solution 265g that mass fraction is 7%, add Defoamer 0.3g, carry out concentration polymerization reaction: polymerization temperature 130°C, stirring frequency 90r / min, concentration time 180min, vacuum degree 0.90MPa to obtain a sol with a viscosity of 5500mpa.s (room temperature).

[0048] Mix the above-mentioned sol with aluminum hydroxide, dipentapentenol, melamine, and alumina fibers to obtain a slurry with a mixing mass ratio of 32%: 37.7%: 18%: 9%: 1.5%, and then add polyamide rings Oxychloropropane resin, 1211, and polyether-modified silicone oil each account for 0.6% of the total mass of the above-mentioned slurry, and stir evenly to obtain a fireproof glue.

[0049] According to GB / T 12954-1991 "General Test Method for Construction Adhesives", the viscosity of the fireproof adhes...

Embodiment 2

[0051] Weigh 700g of liquid sodium silicate and 300g of silica sol and mix, add 265g of polyvinyl alcohol (polymerization degree 1700, alcoholysis degree 88%) aqueous solution with a mass fraction of 7%, add 0.3g of defoamer, and carry out concentrated polymerization reaction: Polymerization The temperature was 130°C, the stirring frequency was 90r / min, the concentration time was 200min, and the vacuum degree was 0.95MPa to obtain a sol with a viscosity of 6700mpa.s (room temperature).

[0052] Mix the above sol with aluminum hydroxide, dipentapentenol, melamine, and alumina fibers to obtain a slurry; the mixing mass ratio is 32%: 37.7%: 18%: 9%: 1.5%, and then add polyamide ring Oxychloropropane resin, 1211, and polyether-modified silicone oil each account for 0.6% of the total mass of the above-mentioned slurry, and stir evenly to obtain a fireproof glue.

[0053] According to the method of Example 1, the viscosity of the fireproof adhesive prepared in Example 2 of the prese...

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

PropertyMeasurementUnit
viscosityaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides a fireproof adhesive, which is prepared from the following raw materials: liquid sodium silicate, silica sol, polyvinyl alcohol, a defoaming agent, heat absorption powder, expansion powder, a dispersing agent, a wetting agent and fibers. The inorganic-organic composite fireproof adhesive provided by the invention can be used for well bonding a metal foil surface and inorganic core materials, has relatively strong bonding force, remarkably reduces the content of organic matters in the whole product, has the performance of releasing crystal water to reduce space temperature and thermal expansion, and can greatly improve the comprehensive fireproof capability of the product. The fireproof adhesive provided by the invention not only can be applied to fire prevention in the power industry, but also can be applied to fireproof materials needing to be covered with metal foils in other industries, and has a wide application range. The invention also provides a preparation method of the fireproof adhesive.

Description

technical field [0001] The invention belongs to the technical field of fireproof materials, and in particular relates to a fireproof glue and a preparation method thereof. Background technique [0002] Key fire protection parts of the power grid: fire prevention and explosion protection at the intermediate joints of cable trenches and cable tunnels, and fire protection of cable trenches and cable tunnel firewalls. The explosion of the cable intermediate joints caused a fire accident and accounted for a large proportion of cable fires. Cable joints have series ductility after explosion and fire, and the fire consequences are serious. Especially in high-risk places in production areas such as nuclear power, thermal power generation, power transmission and transformation, and petroleum and petrochemical industries, the fire protection of some important circuits and cable intermediate joints is highly protected. Pay attention to. [0003] At present, developed countries genera...

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): C09J1/02C09J11/04C09J11/06C09J11/08
CPCC09J1/02C09J11/04C09J11/06C09J11/08
Inventor 傅超郑维金鹿海明齐源崔宝勤
Owner LUYANG ENERGY SAVING MATERIALS CO LTD
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