External wall insulation rock wool standard
Rockwool insulation board has excellent fireproof and heat insulation function, so the price of rock wool board is commonly used in home insulation project. Let's take a look at the construction technology of rock wool insulation board.
Underlying interface processing
The wall should be cleaned, cleaned, cleaned, and so on. Some loose and weathered walls should be cleaned up. When the wall protrusion is larger than lOmm, it should be removed.
When blocking the hand and the abandoned hole, the debris, dust and other materials in the aluminum silicate product should be cleaned, sprinkled with water, and then filled with 1:3 cement mortar.
According to the method of determining the height of the building, high-rise buildings and super high-rise buildings can use the large corners of the wall and the door and window, and use the theodolite to find a straight line. Multi-storey buildings or middle-rise buildings can be straight and straight from the top floor, and the low-carbon steel wire can be used to find the rules. The horizontal horizontal line can be controlled according to the floor elevation or the application of 32_+0.000 up 500mm line as the horizontal reference line. According to the straight line and the thickness of the insulation, each step of the frame has a large angle on both sides of the control line, and then pull the horizontal line as a symbol.
Device rock wool board
1. Determine the rock wool board positioning line, lay the rock wool board, drill holes in the anchor bolt device according to the construction drawing, knock the nylon sleeve with the disc, and press the rock wool board. There are 3 anchors per square meter on the wall, and there are 2 anchors on each rock wool board. The anchor bolts should be placed according to the drawings.
2. Along the window, there should be 3 anchors on each side.
3. The pre-cut regular steel wire mesh is bent into “u†type and “L†type. While laying the rock wool board, the “u†type mesh is used to wrap the bottom of the wall to the “L†type. The mesh covers the side walls of the doors and windows and the corners of the walls. Knock the screw into the nylon sleeve and secure the wire mesh.
4. Use a steel mesh with a right angle edge strip to bend and strengthen.
5, rock wool board is necessary to dock and squeeze each other, there can be no gaps, the narrow strip rock wool board used for inlaying, the width should not be less than 150mm, there should be one anchor through the Zui, so that the rock wool board is close to the wall surface.
6. After the rock wool board is laid, the steel mesh is laid from bottom to top. When the single hole of the steel mesh is lapped, it is tied with low carbon steel wire or fixed with anchor bolts. When the joint is not less than 4 meters per meter, when the side is overlapped Connected with low carbon steel wire, the distance is no more than 150mm. When the anchor bolt is fixed, the distance is not more than 600mm.
7. Renovate all seams and use a staple to flatten the protruding portion of the wire mesh.
8. After the end of the insulation layer device, the interface layer can be constructed after passing the inspection.
3-Chloro-2-hydroxypropyltrimethyl Ammonium Chloride
The water solution at room temperature is 69%, and can be converted into the structure of epoxidation immediately under alkaline condition.
Indicator:
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Item
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Result
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Appreance
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Colorless liquid
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content% ≥
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69
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1,3-dichloropropanol ppm ≤
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10
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Epichlorohydrin ppm ≤
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5
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PH value
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4-7
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Solubility
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Soluble in water and 2- alcohol
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Advantage:
The product appearance is transparent liquid, colorless and tasteless, the impurity content is low, is less than 10ppm.
Because the use of continuous production process, product quality is stability;
The product response rate is higher than 90%.
Application area
1) paper industry
Mainly as a liquid cationic etherifying agent, widely used in fiber, cellulose derivatives and starch modified; as paper internal application of adhesive, filler and fine fiber interception of additives.
(2) textile industry
Liquid cationic etherifying agent react whit cotton fiber, improve the dye binding; reacts with starch obtained cationic starch, as the sizing agent.
(3) water treatment industry
Suspended matters in water is negatively charged, react whit liquid cationic etherifying agent,produce cationic polymer as flocculants are widely used in water purification.
(4) chemical industry for daily use
The reaction of aqueous cationic etherifying agent create cationic guar gum are important chemicals.
3-Chloro-2-Hydroxypropyltrimethyl Ammonium Chloride,69% 3-Chloro-2-Hydroxypropyltrimethyl Ammonium Chloride,65% 3-Chloro-2-Hydroxypropyltrimethyl Ammonium Chloride
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com