Foaming magnesium cement EPS particle grade A noncombustible board and preparation method thereof

A magnesia cement and magnesia technology, applied in the field of building materials, can solve the problems of hardened body cracking, frost and whitening, poor water resistance, etc. Effect

Inactive Publication Date: 2015-06-03
南阳中兴银通建材科技有限公司
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned materials have the phenomena of back-halogenation, poor water resistance, warping deformation, hardening body swelling and frosting, which limit their use.

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
  • Foaming magnesium cement EPS particle grade A noncombustible board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The foamed magnesium cement EPS grain A grade non-combustible board is characterized in that it is prepared from the following raw materials in parts by weight:

[0024] Magnesium oxide 80Kg, Magnesium sulfate 7 hydrate 5Kg, Pull open powder 500g, Calcium stearate 500g, Silicified straw fiber 10Kg, Hydroxy mineral fiber 20Kg, EPS particle 18Kg, Borax 500g, Nanofiber gypsum 10Kg, Sepiolite powder 20Kg, Magnesium chloride 20Kg ;

[0025] Among them, the silicified straw fiber is mixed and stirred by sodium silicate, sodium chloride, and water at a ratio of 2:1:50 to make a mixed emulsion, which is sprayed on the surface of the straw fiber and soaked to form the silicified straw fiber.

[0026] The preparation method of the foamed magnesium cement EPS grain A grade non-combustible board is prepared according to the following steps:

[0027] 1. First, add magnesium oxide, magnesium sulfate heptahydrate, calcium stearate, silicified straw fiber, hydroxyl mineral fiber, bora...

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 foaming magnesium cement EPS particle grade A noncombustible board. The foaming magnesium cement EPS particle grade A noncombustible board is characterized by being prepared from the following raw materials by weight: 80Kg of magnesium oxide, 5Kg of magnesium sulfate heptahydrate, 500g of nekal, 500g of calcium stearate, 10Kg of silicified straw fiber, 20Kg of hydroxyl mineral fibers, 18Kg of EPS particles, 500g of borax, 10Kg of nanofiber gypsum, 20Kg of sepiolite powder and 20Kg of magnesium chloride, wherein the silicified straw fiber is formed by spraying the mixed emulsion of sodium silicate and sodium chloride on the surface layer of the straw fibers for permeating. The preparation method comprises the steps of firstly adding water to the raw materials and stirring, secondly adding the nekal and stirring for foaming, and finally adding the EPS particles and stirring, injecting into a mold for molding, and curing at the normal temperature of 25 DEG C. The foaming magnesium cement EPS particle grade A noncombustible board prepared from the following raw materials is fireproof and thermal insulating, and reaches the fire protection glade A2. Besides, the board is good in thermal insulation properties, high in compressive strength and strong in adhesion stress.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a novel foamed magnesium cement EPS grain A grade non-combustible board. Background technique [0002] Foamed cement belongs to the closed-cell honeycomb inorganic heat insulation material. Its outstanding feature is that a large number of closed cells are formed inside the cement, which makes the cement material lighter and heat-insulating. At the same time, this honeycomb structure also makes it have A certain intensity. Due to the continuous deepening of research and development, the use of the latest cement foaming technology has been able to produce lower density foamed cement products, such as our company's ordinary Portland cement foamed insulation board, the minimum density has reached 150kg / m3, and the thermal conductivity ≤0.06w / (m·K). It can be seen that compared with air-entrained concrete, foamed cement has a lower density and lighter weight,...

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): C04B38/02C04B28/32
Inventor 张自喜张竞水保军
Owner 南阳中兴银通建材科技有限公司
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