Preparation method for composite fireproof door core board

A technology of fire door core board and preparation steps, which is applied in the field of building materials, can solve the problems of instability, moisture-absorbing volume, and short fire-resistant limit time, and achieve the effects of inhibiting gas phase combustion, improving fire resistance, and improving fire resistance

Pending Publication Date: 2020-02-07
刘鹏
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main technical problem to be solved by the present invention is that magnesium oxysulfide cement and magnesium oxychloride cement are used for most of the fire door

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

[0030] Example 1

[0031] The thermoplastic resin is: PPE resin

[0032] Preparation of mixed products:

[0033] Take 60mL of phosphoric acid solution with a concentration of 0.4mol / L and pour it into a three-necked flask with a gas tube. After the oil bath is heated to 70°C, urea is added to the three-necked flask to control the molar ratio of phosphoric acid to urea to 1:2. Continue to heat up to 130°C at a heating rate of 2°C / min, add 10 g of diatomaceous earth to the three-necked flask, and heat it for 20 minutes to obtain a mixed product;

[0034] Preparation of magnesium fiber pulp:

[0035] Pour the above-mentioned mixed product into a tray and transfer it to an oven with a set temperature of 150℃, solidify and dry for 2h, then place it in a mortar and grind for 30min to obtain a diatomaceous earth-based fireproof filler. The sulphate needle with a solid content of 35% Leaf wood pulp, magnesium oxide powder, aluminum oxide powder, and 15% ammonia water in a mass ratio of 10:3:1...

Example Embodiment

[0044] Example 2

[0045] The thermoplastic resin is: PI resin

[0046] Preparation of mixed products:

[0047] Take 62.5mL of phosphoric acid solution with a concentration of 0.4mol / L and pour it into a three-necked flask with a gas tube. After the oil bath is heated to 75°C, add urea to the three-necked flask to control the molar ratio of phosphoric acid to urea to 1:2 , Continue to heat up to 132.5°C at a heating rate of 2.5°C / min, add 11 g of diatomaceous earth to the three-necked flask, and heat preservation for 25 minutes to obtain a mixed product;

[0048] Preparation of magnesium fiber pulp:

[0049] Pour the above-mentioned mixed product into a tray and transfer it to an oven with a set temperature of 175°C, solidify and dry for 2.5 hours, and then place it in a mortar to grind for 32.5 minutes to obtain a diatomite-based fireproof filler. The solid content of sulfuric acid is 35%. Salt coniferous wood pulp, magnesium oxide powder, aluminum oxide powder, and 15% by mass ammon...

Example Embodiment

[0058] Example 3

[0059] The thermoplastic resin is: PEEK resin

[0060] Preparation of mixed products:

[0061] Take 65mL of phosphoric acid solution with a concentration of 0.4mol / L and pour it into a three-necked flask with a gas tube. After the oil bath is heated to 80°C, add urea to the three-necked flask to control the molar ratio of phosphoric acid to urea to 1:2. Continue to heat up to 135°C at a heating rate of 3°C / min, add 12 g of diatomaceous earth to the three-necked flask, and heat preservation for 30 minutes to obtain a mixed product;

[0062] Preparation of magnesium fiber pulp:

[0063] Pour the above mixed product into a tray and transfer it to an oven with a set temperature of 200°C, solidify and dry for 3 hours, then place it in a mortar and grind for 35 minutes to obtain a diatomaceous earth-based fireproof filler. The sulfate needle with a solid content of 35% Leaf wood pulp, magnesium oxide powder, aluminum oxide powder, and 15% ammonia water in a mass ratio of ...

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 belongs to the technical field of building materials, in particular to a preparation method for a composite fireproof door core board. According to the preparation method, after being emulsified, liquid paraffin is mixed with emulsified acrylic acid, and thermoplastic resin, the modified emulsified liquid paraffin, magnesium-containing fiber pulp, diatomite matrix fireproof filling and desulfurated gypsum powder are mixed and preheated to finally obtain the composite fireproof door core board. The diatomite matrix fireproof filling fills in wood pulp fibers, so that the binding action of magnesium salt cement and the wood pulp fibers is enhanced, and the strength of the fireproof door core board is increased; a large amount of ammonium polyphosphate fills in diatomite pores in the diatomite matrix fireproof filling, so that the fireproof performance of the fireproof door core board is improved; the liquid paraffin is emulsified with a surface active agent, so that the damp-proof performance of the fireproof door core board is enhanced; taking resin glue as dipping glue, the fireproof door core board is not liable to erode by dampness; melamine does not contain carbon,so that the fireproof performance is high; and under the micro-pore absorption action of diatomite, the liquid paraffin cannot seep from the fireproof door core board, so that the fireproof door coreboard has lasting damp-proof performance, keeps the size stability of the fireproof door core board, and has a broad application prospect.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a preparation method of a composite fireproof door core board. Background technique [0002] The fire door is composed of skeleton, door core filling material and fireproof hardware. The filling material of the door core board is the core material of the fire door, and its quality and performance are particularly important. The filling material of the door core board traditionally uses materials such as rock wool, aluminum silicate wool, mineral wool, perlite board, foamed magnesium oxychloride cement board, and foamed cement board. Aluminum silicate wool board, rock wool, slag wool or glass wool fireproof door panels. Although these materials are light in weight and good in heat insulation, they consume a lot of energy in the production process. Pollution, it is difficult to meet environmental protection requirements, and there are problems such as poor i...

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): B29C67/24C08L71/12C08L79/08C08L61/16C08L91/06C08L97/02C08K13/04C08K3/22C08K7/26B29L7/00
CPCB29C67/243B29L2007/002C08K2003/222C08K2003/2227C08L61/16C08L71/123C08L79/08C08L2201/02C08L2205/03C08L2205/16C08L91/06C08L97/02C08K13/04C08K3/22C08K7/26
Inventor 刘鹏
Owner 刘鹏
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