Polyurethane-compounded cement-based expanded-perlite heat preservation plate and preparing method thereof

A technology of expanded perlite and composite cement, which is applied in the field of preparation of roofing and wall insulation materials. It can solve the problems of expanded perlite's high water absorption, low concrete strength, and large volume shrinkage, and achieve good sound insulation and stable dimensions. Good performance and low thermal conductivity

Inactive Publication Date: 2016-11-16
ANHUI MINGYUAN NEW BUILDING MATERIAL TECH CO LTD
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, expanded perlite has high water absorption and is easy to pulverize, and its volume shrinkage rate is relatively large

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

Example Embodiment

[0032] Example 1

[0033] This embodiment first prepares A component and B component with two-component polyurethane:

[0034] To prepare component A:

[0035] Put butyl acetate into a reaction kettle equipped with a thermometer, agitator, and reflux condenser, start stirring, add polyethylene adipate diol, heat to 60°C, and then add polymethylene polyphenyl poly Isocyanate, when the temperature rises to 90-100°C, the polymerization reaction begins to occur, keep warm for 2-3 hours, dissolve the ethyl acetate, let the polymer dissolve, finally add acetone, and mix and stir to form a uniform solution, that is, the solid content is 25-35%. Component A in polyurethane adhesives.

[0036] To prepare Component B:

[0037]Put polymethylene polyphenyl polyisocyanate and ethyl acetate into the reaction kettle, start stirring, add small molecule polyol dropwise, control the drop rate, keep the temperature in the range of 60-80°C, after the dropwise addition, keep warm After cooling...

Example Embodiment

[0048] Example 2

[0049] This embodiment prepares polyurethane composite cement-based expanded perlite insulation board, including the following steps:

[0050] (1) Take 100 parts of expanded perlite and 1.0 parts of silane coupling agent KH-550 and mix and stir evenly;

[0051] (2) Add 80 parts of cement and 2.0 parts of fiber mesh cloth to the mixture of step (1) and mix and stir evenly;

[0052] (3) Add 0.3 part of redispersible latex powder to the mixture of step (2) and dissolve in 80 parts of water to form a water solution, mix and stir evenly;

[0053] (4) Add 10 parts of component A to the mixture in step (3), then add 0.1 part of nitric acid and 0.1 part of sulfonated melamine-formaldehyde condensate, mix and stir evenly;

[0054] (5) Add 1 part of component B to the mixture in step (4), mix and stir evenly;

[0055] (6) Inject the mixture obtained in step (5) into the mold and level it out, press it with a press according to the compression ratio of 2.0, and hold...

Example Embodiment

[0060] Example 3

[0061] This embodiment prepares polyurethane composite cement-based expanded perlite insulation board, including the following steps:

[0062] (1) Take 60 parts of expanded perlite and 0.5 parts of silane coupling agent KH-5700 and mix and stir evenly;

[0063] (2) Add 50 parts of cement and 0.15 part of chopped fiber to the mixture of step (1) and mix and stir evenly;

[0064] (3) Add 0.2 parts of redispersible latex powder to the mixture of step (2) and dissolve in 50 parts of water to form a water solution, mix and stir evenly;

[0065] (4) Add 5 parts of component A to the mixture of step (3), then add 0.1 part of chlorine salt, 0.1 part of sulfonated melamine formaldehyde condensate, mix and stir evenly;

[0066] (5) Add 2 parts of component B to the mixture in step (4), mix and stir evenly;

[0067] (6) Inject the mixture obtained in step (5) into the mold and level it out, press it with a press according to the compression ratio of 2.0, and hold th...

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
Densityaaaaaaaaaa
Compressive strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a polyurethane-compounded cement-based expanded-perlite heat preservation plate and a preparing method thereof. The polyurethane composite cement-based expanded-perlite heat preservation plate is prepared from 50-100 parts of expanded perlite, 40-90 parts of cement, 5-10 parts of two-component polyurethane adhesive, 0.1-0.5 part of coupling agent, 0.1-0.25 part of fiber, 0.1-0.5 part of reusable dispersion emulsion powder, 40-90 parts of water, 0.5-2 parts of early strength agent and 0.1-0.5 part of water reducing agent. According to the polyurethane-compounded cement-based expanded-perlite heat preservation plate and the preparing method thereof, cement mortar is modified through polyurethane, polyurethane resin and the cement are evenly dispersed into the expanded perlite, hydration of the cement and solidification of polyurethane are carried out at the same time, and the mutually-filled whole structure is formed; the expanded perlite and the polyurethane cement-based composite are combined, and the polyurethane composite cement-based expanded-perlite heat preservation plate is prepared in a compression-molding mode; the defects of the expanded perlite are effectively overcome, and meanwhile the advantages and the like of the water resistance and heat preservation performance of the polyurethane material, the low heat conductivity of the expanded perlite, the high weather resistance of concrete and the liker are used.

Description

technical field [0001] The invention relates to a preparation method of a roof and wall insulation material, in particular to a polyurethane composite cement-based expanded perlite insulation board and a preparation method thereof. Background technique [0002] Thermal insulation materials refer to materials or material composites used for building envelope or thermal equipment to resist heat flow transfer, including both thermal insulation materials and cold insulation materials. The significance of thermal insulation materials is to meet the thermal environment of building space or thermal equipment on the one hand, and to save energy on the other hand. With the increasing tension of energy sources in the world, the significance of thermal insulation materials in terms of energy saving is becoming more and more prominent. As far as the air conditioner for general residential heating is concerned, the use of thermal insulation enclosure materials can save energy by 50-80% ...

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): C04B28/04C08G18/76C08G18/66C08G18/42C08G18/32C04B38/02C04B14/18C04B20/00C04B22/14C04B24/22
CPCC04B28/04C04B2201/20C04B2201/32C04B2201/50C08G18/3203C08G18/4238C08G18/7664C04B14/185C04B20/0048C04B22/142C04B24/226C04B38/02C04B2103/0057
Inventor 胡先海王传富郑鹏虞雅琴
Owner ANHUI MINGYUAN NEW BUILDING MATERIAL TECH 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