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Polyacrylonitrile fiber-reinforced crack-resistant diatom ooze material and preparation method thereof.

A polyacrylonitrile fiber and diatom mud technology, applied in the field of building materials, can solve the problems of inability to adapt to temperature changes, poor durability, easy powder removal, etc., to avoid the possibility of cracking and wrinkles, avoid cracking and wrinkles, The effect of relieving internal stress

Inactive Publication Date: 2017-03-29
东莞市爱乐居环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Chinese patent document whose publication number is CN105399369A discloses a kind of environment-friendly and energy-saving diatom mud coating and its preparation method. Hydroxypropyl methylcellulose, sodium carboxymethyl starch, EVA rubber powder, appropriate amount of toner, antifungal agent, and heat-insulating and reflective functional materials. Although it is environmentally friendly, EVA rubber powder is easy to block micropores, making Diatom mud loses its breathing and filtering effect. In addition, the material cannot adapt to temperature changes during construction and is prone to cracking
[0004] The Chinese patent document whose publication number is CN101704656A discloses a kind of interior wall coating composition, and this interior wall coating composition is made of diatomite, curing material, functional auxiliary material, skeleton material, hemp fiber and titanium dioxide, wherein the curing material Use shell powder or a mixture of shell powder and 4A zeolite powder; a mixture of functional auxiliary materials such as breathable casein and alginate powder; the skeleton material is dolomite sand, although it is completely composed of natural materials, its durability and bonding strength are poor. Low, and at the same time unable to adapt to temperature changes during construction, prone to wrinkles and cracks
[0005] At this stage, there are also some diatom mud materials on the market that can absorb harmful substances in the air, but generally have low strength, poor water retention, easy powder removal, and are not easy to promote

Method used

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  • Polyacrylonitrile fiber-reinforced crack-resistant diatom ooze material and preparation method thereof.
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  • Polyacrylonitrile fiber-reinforced crack-resistant diatom ooze material and preparation method thereof.

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Embodiment 1

[0029] The preparation method of the polyacrylonitrile fiber reinforced anti-crack type diatom ooze material of the present embodiment is prepared according to the following steps:

[0030] Step 1, preparation of mixed powder: 28 parts of diatomite with a silicon content of 90%, 30 parts of heavy calcium carbonate with a particle size of 45 μm, 18 parts of ash calcium powder with a particle size of 23 μm, 16 parts of quartz sand with a particle size of 450 μm, 3 Anion powder with a particle size of 12 μm, 0.5 part of sodium carboxymethyl starch with a viscosity of 80000, 1 part with a viscosity of 200000 hydroxypropyl methylcellulose and 0.3 part of cornstarch with a particle size of 150 μm are fully uniform to obtain a mixed powder;

[0031] Step 2. Preparation of nano-titanium dioxide mixed solution: after mixing 3 parts of anatase nano-titanium dioxide powder with water, ultrasonically disperse at 60KHz until uniform;

[0032] Step 3, preparing mixed slurry: adding the mixe...

Embodiment 2

[0036] The preparation method of the polyacrylonitrile fiber reinforced anti-crack type diatom ooze material of the present embodiment is prepared according to the following steps:

[0037] Step 1. Preparation of mixed powder: 15 parts of diatomite with a silicon content of 93%, 35 parts of heavy calcium carbonate with a particle size of 23 μm, 16 parts of ash calcium powder with a particle size of 150 μm, 20 parts of quartz sand with a particle size of 800 μm, 2 parts of negative ion powder with a particle size of 8 μm, 1 part of sodium carboxymethyl starch with a viscosity of 60000, 0.5 part of sodium carboxymethylcellulose with a viscosity of 120000, 0.5 part of hydroxypropyl methylcellulose with a viscosity of 100000 and 0.5 part The cassava pregelatinized starch with a particle size of 120 μm is sufficiently uniform to obtain a mixed powder;

[0038] Step 2. Preparation of nano-titanium dioxide mixed solution: after mixing 3 parts of rutile nano-titanium dioxide powder wi...

Embodiment 3

[0043] The preparation method of the polyacrylonitrile fiber reinforced anti-crack type diatom ooze material of the present embodiment is prepared according to the following steps:

[0044] Step 1, preparation of mixed powder: 18 parts of diatomite with a silicon content of 92%, 40 parts of heavy calcium carbonate with a particle size of 150 μm, 12 parts of ash calcium powder with a particle size of 90 μm, 10 parts of quartz sand with a particle size of 830 μm, 1 part of negative ion powder with a particle size of 10 μm, 0.2 part of sodium carboxymethyl starch with a viscosity of 80,000, 0.3 part of hydroxypropyl methylcellulose with a viscosity of 80,000 and 0.1 part of potato starch with a particle size of 100 μm are sufficiently uniform to prepare a mixed powder ;

[0045] Step 2. Preparation of nano-titanium dioxide mixed solution: after mixing 5 parts of rutile nano-titanium dioxide powder with water, ultrasonically disperse at 45KHz until uniform;

[0046] Step 3, prepari...

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Abstract

The invention discloses a polyacrylonitrile fiber-reinforced crack-resistant diatom ooze material and a preparation method thereof. The polyacrylonitrile fiber-reinforced crack-resistant diatom ooze material comprises, by mass, 15 to 35 parts of diatomite, 20 to 40 parts of heavy calcium carbonate, 8 to 20 parts of ash-calcium powder, 8 to 20 parts of quartz sand, 2 to 5 parts of nanometer titania, 1 to 4 parts of anion powder, 0.5 to 2.5 parts of cellulose ether, 0.1 to 0.5 parts of pregelatinized starch and 0.1 to 2 parts of polyacrylonitrile fibers. Through combination of an environmentally friendly and safe bio-binder and polyacrylonitrile fibers with the effect of improving crack resistance, the water retention and moisturizing effects are obtained, bonding strength is greatly improved, wall material toughness and crack resistance are improved, wall surface strength is improved and powder falling possibility is reduced.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a polyacrylonitrile fiber reinforced anti-crack diatom mud material and a preparation method thereof. Background technique [0002] Diatom mud material is highly sought after by decoration owners because of its excellent environmental protection performance. Its internal porosity is as high as 90%, which can play the role of moisturizing, absorbing particulate matter and toxic and harmful gases in the air. How to maximize the use of diatom mud material It has become the focus of industry research to meet the needs of the home improvement market with increasingly diverse needs while enhancing its strength and adhesion. [0003] The Chinese patent document whose publication number is CN105399369A discloses a kind of environment-friendly and energy-saving diatom mud coating and its preparation method. Hydroxypropyl methylcellulose, sodium carboxymethyl starch, EVA rubber...

Claims

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Application Information

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IPC IPC(8): C04B26/28C04B111/28C04B111/52
CPCC04B26/285C04B2111/00025C04B2111/28C04B2111/52C04B14/08C04B14/28C04B22/064C04B14/06C04B14/305C04B16/0658C04B20/008
Inventor 李绍龙唐世家吴沁
Owner 东莞市爱乐居环保科技有限公司