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A special formaldehyde-free sizing agent for mineral wool and its test method

A sizing agent and mineral wool technology, applied in the direction of acidic copolymer adhesives, measuring devices, adhesive types, etc., can solve the problems of sticking rollers, low initial tack, high initial tack, etc., and achieve simple test methods and test high precision effect

Active Publication Date: 2022-02-25
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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  • A special formaldehyde-free sizing agent for mineral wool and its test method
  • A special formaldehyde-free sizing agent for mineral wool and its test method
  • A special formaldehyde-free sizing agent for mineral wool and its test method

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 application discloses a formaldehyde-free sizing agent for mineral wool. The formaldehyde-free styling agent contains: A, 60-90% unsaturated carboxylic acid oligomer; B, 10-40% polyol; C, 0.001-1% selected from coconut oil fatty acid diethanolamide, alkanes Oxylated polyethyleneimine, one or more components of glycerol polyether, wherein the number of ethylene oxide in glycerol polyether is 3‑50. The invention does not contain formaldehyde, has better dry-wet tensile strength and lower initial tack, and solves the problem of sticking rollers that may exist in the mineral wool production process. In addition, the present invention also develops a test method for testing initial tack, which is simple and has high test accuracy, and has guiding significance for the type selection and improvement of the mineral wool sizing agent.

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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Patent Type & Authority Patents(China)
IPC IPC(8): C03C25/26
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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