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

Preparation method of composite fireproof plate

A fireproof board, composite technology, applied in chemical instruments and methods, synthetic resin layered products, lamination and other directions, can solve the problems of low fire resistance, fragile fireproof board, difficult transportation, etc., to reduce curing shrinkage, gelatinization, etc. The effect of lowering the temperature and raising the softening point

Inactive Publication Date: 2019-12-10
王生红
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main technical problem to be solved by the present invention is to provide a composite fireproof board with low fire resistance grade and gypsum-based fireproof board, which is fragile, easy to break, high density, and difficult to transport. Preparation method of fireproof board

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

Embodiment 1

[0031] Preparation of intermediate slabs:

[0032] Mix 70g of 100-mesh nitrile rubber powder and 400g of 200-mesh marble powder with a mass ratio of 1:3, and place them in a double-roll mixer. The temperature of the front roll is 45°C, the temperature of the rear roll is 40°C, and the roll distance is 8mm. Molding 2 times under the condition, then add 30g bentonite, 20g nano-calcium carbonate in the twin-roller mixer, mixing and masticating 2 times, discharging, extruding by extruder to obtain middle slate, for subsequent use;

[0033] Preparation of polyurethane backsheet:

[0034] In parts by weight, add 80 parts of hexamethylene diisocyanate, 30 parts of polyether diol, and 20 parts of rosin into the three-necked flask, heat up to 80°C, keep the temperature for 2 hours, cool down to 50°C, and add 10 parts of dimethylol propionic acid, 20 parts of glycerin and 20 parts of maleic anhydride, after dissolving 3 parts of dibutyltin dilaurate in 35 parts of acetone, drop them in...

Embodiment 2

[0042] Preparation of intermediate slabs:

[0043] Mix 75g of 100-mesh nitrile rubber powder and 450g of 200-mesh marble powder with a mass ratio of 1:3, and place them in a double-roller mixer. The temperature of the front roll is 50°C, the temperature of the rear roll is 45°C, and the roll distance is 9mm. Molding 2 times under the condition, then add 35g bentonite, 22g nano-calcium carbonate in the twin-roller mixer, mixing and masticating 2 times, discharging, extruding by extruder to obtain middle stone slab, for subsequent use;

[0044] Preparation of polyurethane backsheet:

[0045] In parts by weight, add 85 parts of hexamethylene diisocyanate, 35 parts of polyether diol, and 25 parts of rosin into the three-necked flask, heat up to 82°C, keep the temperature for 2.5 hours, then cool down to 55°C, and pour them into the three-necked flask in turn. Add 12 parts of dimethylolpropionic acid, 25 parts of glycerin and 22 parts of maleic anhydride, dissolve 4 parts of dibut...

Embodiment 3

[0053] Preparation of intermediate slabs:

[0054] Mix 80g of 100-mesh nitrile rubber powder and 500g of 200-mesh marble powder in a mass ratio of 1:3, and place them in a double-roll mixer. The temperature of the front roll is 55°C, the temperature of the rear roll is 50°C, and the roll distance is 10mm. masticate 3 times under the condition, then add 40g bentonite, 25g nano-calcium carbonate in the twin-roller mixer, mix and masticate 3 times, discharge, and extrude by extruder to obtain middle slate, for subsequent use;

[0055] Preparation of polyurethane backsheet:

[0056] In parts by weight, add 90 parts of hexamethylene diisocyanate, 40 parts of polyether diol, and 30 parts of rosin into the three-necked flask, heat up to 85°C, keep the temperature for 3 hours, cool down to 60°C, and add 15 parts of dimethylolpropionic acid, 30 parts of glycerin and 25 parts of maleic anhydride, after dissolving 5 parts of dibutyltin dilaurate in 40 parts of acetone, drop them in at a...

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 preparation method of a composite fireproof plate, and belongs to the technical field of preparation of fireproof materials. Maleic anhydride and glycerin are subjected a reaction with rosin in sequence in the production process of polyurethane; rosin with a plasticizing effect is modified; maleated rosin reacts with glycerin to generate modified rosin resin, and the reaction belongs to a polyesterification reaction; the acid value of maleated rosin can be reduced through the polyesterification reaction, and the softening point of the maleated rosin is increased; meanwhile, a polyurethane bottom piece can be crosslinked with rubber components in a stone plate through rosin, cohesion between interfaces of the polyurethane bottom piece and the stone plate is enhanced after calendering, and the stable and high-toughness composite fireproof plate is formed. When the PVC plasticized board is prepared, flax fibers are soaked in hydrogen peroxide to be oxidized, theobtained oxidized flax fibers are soaked in an emulsified liquid of oxidized starch to be modified and dispersed, the gelatinization temperature of the starch can be reduced through the oxidized starch, the hot paste viscosity is reduced, and the thermal stability is enhanced.

Description

technical field [0001] The invention discloses a method for preparing a composite fireproof board, which belongs to the technical field of fireproof material preparation. Background technique [0002] Fireproof board, also known as fireproof board, is scientifically called thermosetting resin impregnated paper high-pressure laminated board, and its English abbreviation is HPL. It is a refractory building material for surface decoration, with rich surface colors, textures and special physical properties. Fireproof panels are widely used in interior decoration, furniture, kitchen cabinets, laboratory countertops, exterior walls and other fields. [0003] The fireproof board is a refractory building material for surface decoration. The fireproof board is made of base paper (titanium powder paper, kraft paper) impregnated with melamine and phenolic resin, and made in a high temperature and high pressure environment. Mineral wool board and glass wool board: mainly use mineral wo...

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): B32B27/36B32B27/30B32B9/00B32B9/04B32B27/06B32B37/10C08L27/06C08L1/04C08L91/00C08L3/10C08L75/08C08L63/10C08G18/32C08G18/34C08G18/48C08G18/64C08G18/66D06M11/50D06M101/06
CPCB32B9/00B32B9/04B32B27/06B32B27/304B32B27/36B32B37/10C08G18/3206C08G18/348C08G18/4825C08G18/6492C08G18/6677C08G18/6692C08L27/06C08L75/08C08L2201/02C08L2205/035C08L2205/16D06M11/50D06M2101/06C08L1/04C08L91/00C08L3/10C08L63/10
Inventor 王生红
Owner 王生红
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