Hydrophobic type glass wool blanket and adhesive proportion thereof

A glass wool felt and adhesive technology, applied in the direction of adhesives, adhesive additives, adhesive types, etc., can solve the problems of affecting the bonding strength of glass fiber and polymer resin, unsatisfactory, and reducing the strength of glass fiber. To achieve the effect of widening the scope of use, good mold release, and excellent hydrophobicity

Inactive Publication Date: 2014-02-12
陈照峰 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of this layer of water film will seriously affect the bonding strength between glass fiber and polymer resin
In addition, the adsorbed water will also penetrate into the micro-cracks on the surface of the glass fiber, causing the glass to be hydrolyzed into huge silica colloids, thereby reducing the strength of the glass fiber
[0003] Chinese patent CN1557753A (disclosure date is December 29, 2004) discloses a waterproof glass wool board and a preparation method thereof. The method uses glass wool as a raw material, and glass wool boards are made through glue spraying, pressing, curing and cutting. The adhesive is composed of resin, coupling agent and water. While maintaining the excellent performance of the original glass wool board, this method increases the moisture-proof and waterproof performance, and improves the strength and hardness; the water-repellent performance is improved to a certain extent. Improvement, but can not meet the application of very high hydrophobic requirements

Method used

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  • Hydrophobic type glass wool blanket and adhesive proportion thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The adhesive is configured according to the following proportions: 471Kg of water-soluble phenolic resin with a solid content of 40.4%, 85Kg of urea with a nitrogen content of 46.4%, 700Kg of demineralized water, 15Kg of ammonium sulfate, and 8Kg of emulsified hydroxy silicone oil with a solid content of 25.5%. Silane coupling agent KH550 1.2Kg, concentration is 20.4% ammonia water 55Kg, solid content is 48.3% mineral oil 15Kg, demineralized water 798Kg. Spray the reacted adhesive on the surface of the glass fiber with an average diameter of 5-6 μm, and cure it at 230-250°C for 2 minutes. After curing, the surface of the glass fiber is evenly wrapped with the adhesive, and the cotton felt is light yellow. The performance test of hydrophobic glass wool felt is shown in Table 1.

Embodiment 2

[0026] The adhesive is configured according to the following proportions: 151.5Kg of water-soluble urea-formaldehyde resin with a solid content of 42%, 5.9Kg of ammonium chloride, 3.5Kg of emulsified amino silicone oil with a solid content of 23.8%, silane coupling agent KH5500.66Kg, concentration 18Kg of 20.4% ammonia water, 3Kg of mineral oil with a solid content of 48.3%, and 300Kg of demineralized water. Spray the reacted adhesive on the surface of the glass fiber with an average diameter of 4.5-6 μm, and cure it at 235-255°C for 2 minutes. After curing, the surface of the glass fiber is evenly wrapped with the adhesive, and the cotton felt is light yellow. The performance test of hydrophobic glass wool felt is shown in Table 1.

Embodiment 3

[0028] The adhesive is configured according to the following ratio: 150Kg of water-soluble urea-formaldehyde resin with a solid content of 41%, 7.5Kg of ammonium chloride, 5Kg of emulsified amino silicone oil with a solid content of 23.8%, and 1.2Kg of silane coupling agent KH550, with a concentration of 20Kg of 20.4% ammonia water, 14Kg of mineral oil with a solid content of 48.3%, and 270Kg of demineralized water. Spray the reacted adhesive on the surface of the glass fiber with an average diameter of 4-6 μm, and cure it at 235-255°C for 2 minutes. After curing, the surface of the glass fiber is evenly wrapped with the adhesive, and the cotton felt is light yellow. The performance test of hydrophobic glass wool felt is shown in Table 1.

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Abstract

The invention discloses a hydrophobic type glass wool blanket and an adhesive proportion thereof. The hydrophobic type glass wool blanket is composed of centrifugal glass wool fibers and a highly hydrophobic adhesive, wherein the content of the adhesive is 3-25%, and the adhesive contains water soluble resin, a silane coupling agent, a moisture repellent, a curing agent, a pH conditioning agent, dust laying oil and softened water. According to the invention, the water soluble resin with good mobility serves as a raw material, so that the prepared glass wool blanket has excellent hydrophobic performances. At the same time, the invention relates to the adhesive proportion of the hydrophobic glass wool blanket. The adhesive product in the invention is excellent in bonding strength, hydrophobic performances, hydrolytic resistance, rebound resilience and corrosion resistance, and widens the application field of the glass wool blanket, such that the glass wool blanket can be used for thermal insulation and sound insulation in the fields of buildings, aviation, aerospace, navigation and the like.

Description

technical field [0001] The invention relates to a glass wool felt and its adhesive ratio, in particular to a hydrophobic glass wool felt and its adhesive ratio. Background technique [0002] The advantages of glass fiber are good insulation, strong heat resistance, and good corrosion resistance, but it is undeniable that it also has many shortcomings, such as smooth fiber surface, absorbent water film, and poor adhesion to polymer resin. Glass fibers have a strong tendency to adsorb polar molecules. Water vapor is the easiest polar molecule to encounter. Therefore, a layer of water molecules is firmly adsorbed on the surface of the glass fiber, and the thickness is about 100 times that of water molecules. The adsorption process is extremely fast. When the relative humidity is 60%-70%, it only takes 2-3s to reach the adsorption equilibrium. This kind of adsorption is very strong, and this layer of water film can only be removed under the condition of about 500 ℃ and negati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4218D04H1/587C09J161/06C09J161/24C09J161/28C09J11/08
Inventor 陈照峰邱金莲苏丹
Owner 陈照峰
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