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Magnesium oxysulfate decorative sheet and preparation method thereof

A technology of magnesium oxysulfide and thin plates, which is applied in the field of decorative panels, can solve the problems of easy cracking of shrinkage deformation joints, high unit weight, and high transportation costs, and achieve the effects of stable joint treatment, weight reduction, and easy transportation and installation

Pending Publication Date: 2019-01-29
BLUETOP JIANGSU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, magnesium oxysulfide cement boards with magnesium oxysulfide as the main material will shrink and deform in shrinkage and low-temperature dry environments, especially in northern my country, and the joints are easy to crack, with high density, high unit weight, high transportation costs, and installation. difficulty

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] A preparation method for a magnesium oxysulfide decorative sheet, comprising the steps of:

[0029] Step 1: Prepare the raw materials of the magnesium oxysulfide decorative sheet according to the following components and parts by weight: magnesium oxide: 50-60 parts, magnesium sulfate aqueous solution: 50-60 parts, foaming agent: 4-5 parts, bamboo fiber: 20-25 parts, water: 50-60 parts and modifier: 0.5-1 part; wherein the weight ratio of magnesium sulfate fixed particles to water in the magnesium sulfate aqueous solution is 1:1-2;

[0030] Step 2: Stirring for the first time: place the foaming agent of magnesium sulfate aqueous solution, magnesium oxide, bamboo fiber, water, modifying agent and half of the formula amount in the mixing device for stirring; specifically: the modifying agent is divided into Add three times, add one-third of the amount each time; add the first time together with other materials, add the second time after stirring the materials for 1 minute...

Embodiment 1

[0041] The raw materials of the magnesium oxysulfide decorative sheet are configured according to the following components and parts by weight: magnesium oxide: 50 parts, magnesium sulfate aqueous solution: 50 parts, flame-retardant foamed EPS particles: 4 parts, bamboo fiber: 20 parts, water: 50 parts and citric acid: 0.5 parts;

[0042] Step 1: initial stirring: place the formulated amount of magnesium sulfate aqueous solution, magnesium oxide, bamboo fiber, water, modifier and 2 parts of flame-retardant foamed EPS particles in a stirring device for stirring;

[0043] Step 2: Physical foaming: Add the remaining 2 parts of flame-retardant foamed EPS particles into the intermittent pre-expansion machine, heat and foam in the intermittent pre-expansion machine, and the heating temperature is 80°C;

[0044]Step 3: Stir again: Add the foamed flame-retardant foamed EPS particles into the mixer in step 1, and stir the foamed flame-retardant foamed EPS particles with the mixture in ...

Embodiment 2

[0049] The raw materials of the magnesium oxysulfide decorative sheet are configured according to the following components and parts by weight: magnesium oxide: 55 parts, magnesium sulfate aqueous solution: 55 parts, flame-retardant foamed EPS particles: 4 parts, bamboo fiber: 20 parts, water: 55 parts and citric acid: 0.5 parts;

[0050] Step 1: initial stirring: place the formulated amount of magnesium sulfate aqueous solution, magnesium oxide, bamboo fiber, water, modifier and 2 parts of flame-retardant foamed EPS particles in a stirring device for stirring;

[0051] Step 2: Physical foaming: Add the remaining 2 parts of flame-retardant foamed EPS particles into the intermittent pre-expansion machine, heat and foam in the intermittent pre-expansion machine, and the heating temperature is 100°C;

[0052] Other steps are with embodiment 1;

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Abstract

The invention relates to a magnesium oxysulfate decorative sheet and a preparation method thereof. The raw material components and weight parts of the sheet are as follows: 50-60 parts of magnesium oxide, 50-60 parts of magnesium sulfate aqueous agent, 4-5 parts of a foaming agent, 20-25 parts of bamboo fiber, 50-60 parts of water and 0.5-1 part of a modifier. The above raw materials are subjectedto primary stirring. The magnesium oxysulfate decorative sheet is prepared by physical foaming, re-stirring, molding, curing and trimming. The invention has the advantages of high fireproof and waterproof performance, strong nail holding force, no shrinkage, unfavorable cracking of the joint part and no easy folding.

Description

technical field [0001] The invention relates to a decorative plate, in particular to a magnesium oxysulfide decorative thin plate and a preparation method thereof. Background technique [0002] At the end of the 19th century, various countries began to use gypsum boards and cement fiberboards as interior partition walls. It is a light-weight building decoration material with a large international output and wide application. , with other materials (such as mineral wool boards, waterproof coatings and decorative surface materials, etc.), partition walls with sound insulation or advanced decoration requirements. In the 1970s, China began to experiment and produce paper-faced gypsum boards, and applied them in architectural decoration projects, while magnesium oxysulfide cement boards began to be used in architectural decoration partition boards and exterior walls in China around 2015. A new type of panel for decorative panels. [0003] In today's architectural decoration mar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B28/30
CPCC04B28/30C04B2111/28C04B2111/40C04B2201/50C04B22/142C04B18/265C04B24/06C04B16/08C04B22/16C04B22/165C04B38/10
Inventor 夏明宝夏亮夏澜峻夏澜益
Owner BLUETOP JIANGSU NEW MATERIAL
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