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Special formaldehyde-free setting agent for mineral wool and testing method thereof

A technology of setting agent and mineral wool, which is applied in the direction of acid copolymer adhesive, measuring device, adhesive type, etc., can solve the problems of sticky roller, low initial viscosity, high initial viscosity, and achieves simple test method and test. high precision effect

Active Publication Date: 2020-10-30
JIANGSU AKST NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Purpose of the invention: The present invention aims at the problem that the existing formaldehyde-free polyacrylic acid setting agent has high initial viscosity, which may cause sticking rollers in the production process of mineral wool and affect the continuous production of formaldehyde-free mineral wool products. Low initial tack formaldehyde-free fixative for the cotton industry

Method used

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  • Special formaldehyde-free setting agent for mineral wool and testing method thereof
  • Special formaldehyde-free setting agent for mineral wool and testing method thereof
  • Special formaldehyde-free setting agent for mineral wool and testing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 sizing agent is used for the test experiment of glass wool

[0041] Calculated according to the solid content of 100, take 80 parts of polyacrylic acid polymer with a number average molecular weight of 2500, 20 parts of glycerin, and 0.2 parts of glycerol polyether-12, and mix them with an appropriate amount of water to test the initial tack and dry- wet bond strength.

[0042] Use the setting agent ratio of the above example 1, add an appropriate amount of coupling agent, dustproof oil, water repellent and add an appropriate amount of water according to the process needs, mix evenly and spray the glue evenly on the centrifugal fiber, collect the cotton and solidify Forming to obtain glass wool, and test the performance of glass wool according to GB / T 13350-2017 "Glass Wool for Thermal Insulation and Its Products".

Embodiment 2

[0043] Embodiment 2 setting agent is used for the test experiment of rock wool

[0044] Based on the solid content of 100, take 90 parts of polyacrylic acid-methyl acrylate polymer with number average molecular weight of 1000 (acrylic acid:methyl acrylate monomer component ratio is 60:40), 1,4-butanediol 10 part, 0.1 part of coconut oil fatty acid diethanolamide, mixed evenly with an appropriate amount of water, and tested the initial tack and dry-wet bond strength of the sizing agent respectively.

[0045] Use the setting agent ratio of the above-mentioned Example 1, add an appropriate amount of coupling agent, dustproof oil, water repellent and add an appropriate amount of water according to the needs of the process, mix evenly and spray the glue evenly on the centrifugal basalt fiber, collect cotton After solidification and molding, rock wool is obtained, and the performance of rock wool is tested according to GB / T 19686-2015 "Rock Wool Thermal Insulation Products for Build...

Embodiment 3

[0046] Embodiment 3 sizing agent is used for the test test of mineral wool

[0047] Calculated according to the solid content of 100, take 60 parts of polyacrylic acid-maleic anhydride polymer with a number average molecular weight of 5000 (the monomer component ratio of acrylic acid: maleic anhydride is 55:45), 40 parts of trimethylolpropane, Mix 0.5 part of alkoxylated polyethyleneimine with an appropriate amount of water, and test the initial tack and dry-wet bond strength of the sizing agent respectively.

[0048] Use the sizing agent proportioning of above-mentioned embodiment 1, add appropriate coupling agent, anti-dust oil again, water-repellent and add appropriate amount of water according to process needs, mix evenly and glue is evenly sprayed in centrifugal slag cotton fiber, collect The cotton is solidified and formed to obtain slag wool, and the performance of the slag wool is tested according to GB / T 11835-2016 "Rock wool, slag wool and their products for thermal ...

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Abstract

The invention discloses a special formaldehyde-free setting agent for mineral wool. The formaldehyde-free setting agent is prepared from the following components: A, 60 to 90 percent of unsaturated carboxylic acid oligomer; B, 10 to 40 percent of polyhydric alcohol; and C, 0.001-1% of one or more selected from coconut oil fatty acid diethanolamide, alkoxylated polyethyleneimine and glyceryl polyether, wherein the quantity of ethylene oxide in the glyceryl polyether is 3-50. The agent does not contain formaldehyde, has good dry-wet tensile strength and low initial adhesion, and solves the problem of roll adhesion possibly existing in the mineral wool production process. Besides, the invention further develops a testing method for testing the initial adhesion, and the testing method is simple and high in testing precision and has guiding significance for model selection and improvement of the setting agent for the mineral wool.

Description

technical field [0001] The application relates to the technical field of fine chemicals, in particular to a formaldehyde-free sizing agent for mineral wool. Background technique [0002] Mineral wool generally includes rock wool, glass wool and slag wool. Minerals such as basalt, diabase, andesite and a small amount of flux such as dolomite or limestone are heated to a molten state at a high temperature of 1400-1500 ° C, and then the inorganic fiber made by a high-speed centrifuge is called rock wool; and glass wool The main raw material is to use natural ore such as quartz sand, limestone, dolomite as the main raw material, melt with some chemical raw materials such as soda ash and borax, and then blow it into flocculent fine fibers by means of external force blowing; slag cotton is made of industrial waste slag (blast furnace Slag or copper slag, aluminum slag, etc.) as the main raw material, inorganic fiber made by melting and fibrosis. [0003] The above-mentioned mine...

Claims

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Application Information

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IPC IPC(8): C09J133/02C09J11/08C09J11/06G01N19/04
CPCC09J133/02C09J11/08C09J11/06G01N19/04C08L71/02C08K5/053
Inventor 朱玉国杨健勋李炳泉唐立超刘静林
Owner JIANGSU AKST NEW MATERIALS CO LTD
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