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Emulsified paraffin wax damp-proof agent for mineral wool sound absorption board and its preparation method

A technology of mineral wool sound-absorbing board and emulsifying paraffin, which is applied in the field of emulsifying paraffin moisture-proofing agent for mineral wool sound-absorbing board, can solve the problems of easy escape of paraffin, fire hazard, difficult adsorption of moisture-proofing agent, etc., achieve excellent moisture-proof effect, improve Moisture resistance, the effect of optimizing the processing technology

Inactive Publication Date: 2002-11-06
山东环绿康新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. It is difficult to make a stable emulsion, prone to demulsification, precipitation of paraffin and deterioration
[0004] 2. The moisture-proof agent lacks the necessary polar groups, and the molecules of the mineral wool and other components of the sound-absorbing panel are combined by Van der Waals force. The moisture-proof agent is difficult to absorb effectively and uniformly, and the moisture-proof effect is poor.
[0005] 3. The processing technology of the mineral wool sound-absorbing board is difficult. Due to the precipitation of paraffin, when the slurry is made on the Internet, the mesh is easily blocked by paraffin, and it needs to be shut down frequently to clean or replace the new net.
[0006] 4. The performance of the produced sound-absorbing panels is poor. During the drying stage of the panels, because the paraffin wax is not effectively combined, it is highly volatile at high temperatures, and the paraffin wax is easy to escape, causing fire hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 In a 50-liter vertical reactor equipped with a stirrer, interlayer heating, temperature-controlling thermocouple and reflux condenser, 200Kg of coumarone resin and 16Kg of maleic anhydride were added, and the resin was heated at 180°C to melt the resin while While stirring slowly, turn on the reflux condensed water, react for 3 hours, and obtain the modified resin.

[0019] In addition, in a 50-liter reaction kettle equipped with electric stirring, a thermometer, a reflux condenser and a dropping funnel, add the modified resin 38.0Kg prepared above, 56 # Semi-refined paraffin wax 14.0Kg, co-emulsifier C is synthetic C 9～14 Alcohol 2.4Kg, co-emulsifier D is maleic rosin 2.6Kg, heating makes material melt completely, adds diethanolamine to adjust pH value 8~9, adds 1.6Kg oleyl alcohol polyoxyethylene (10) ether (Brij-96) and 0.4Kg Tween-60. Stir evenly, control the temperature at 90-99°C, add deionized water at about 90°C dropwise, and stir at a speed of 1000r...

Embodiment 2

[0020] Example 2 In a 50-liter vertical reactor equipped with a stirrer, interlayer heating, temperature-controlling thermocouple and reflux condenser, add 200Kg of aromatic petroleum resin and 40.0Kg of acrylic acid, heat at 150°C to melt the resin, and open it while stirring slowly The condensed water was refluxed and reacted for 4 hours to obtain a modified resin. In addition, in the reactor of 50 liters that electric stirring, thermometer, reflux condenser and dropping funnel are housed, add the modified resin 40.0Kg of above-mentioned preparation, 50# semi-refined paraffin wax 44.0Kg, co-emulsifier C is lauryl alcohol 2.4Kg, co-emulsifier D is 5.6Kg of strengthened rosin, heat to melt all the materials, add 40% NaOH solution to adjust the pH value to 8-9, then add 8.0Kg cetyl polyoxyethylene (10) ether (Brij-56 ) and 2.0Kg Span-85. Stir evenly, control the temperature at 90-99°C, add demineralized water at about 90°C dropwise, and stir at a speed of 1000r / min while addin...

Embodiment 3

[0021] Example 3 Repeat Example 2, but the acrylic acid is 2.0Kg, nitrogen is passed, pure water is used, the co-emulsifier C is replaced by stearyl alcohol, and the co-emulsifier D is 4.8Kg.

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Abstract

The present invention relates to emulsion of polymer. The emulsified paraffin damp-proof agent consists of paraffin, modified resin, non-ionic surfactant composite, emulsifying assistant and water. It has high stability and damp resisting performance, and may be used to optimize the production process of mineral wool sound absorbing board, reduce the consumption of damp-proof agent and lower the cost.

Description

Technical field [0001] The invention belongs to the field of emulsion products containing polymer substances, in particular to an emulsified paraffin wax moisture-proof agent for a mineral wool sound-absorbing board. Background technique [0002] Mineral wool sound-absorbing board is a high-grade functional decorative sound-absorbing material widely used in the domestic construction and decoration industry. It is made of mineral wool as the main body and a variety of other materials and additives. In addition to the basic functions of sound absorption and decoration, this material must also have good moisture resistance so that it can maintain its inherent shape and slight deflection changes under changing climates and different humidity. The additive that gives sound-absorbing panels good moisture resistance is called moisture-proof agent. This moisture-proof agent should have reliable stability, no demulsification, no deterioration, so as to facilitate the turnover and use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/06
Inventor 陈南勋邢希增宋希功
Owner 山东环绿康新材料科技有限公司
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