CN-122011966-A - Flame-retardant aqueous neoprene spray adhesive, and preparation method and application thereof

Abstract

The invention relates to a flame-retardant aqueous neoprene spraying adhesive and a preparation method and application thereof, which solve the technical problems of poor flame retardant property and unstable storage of the existing aqueous neoprene spraying adhesive, and the flame-retardant aqueous neoprene spraying adhesive comprises, by mass, 2% -5% of an anti-aging agent, 2% -10% of a flame retardant, 11% -32% of a tackifying resin, 1% -4% of a thickening agent, 0.5% -4% of a PH value regulator and the balance neoprene latex. The invention can be applied to aircraft seat bonding materials.

Inventors

• WANG LEI
• LI ZHAODI
• KONG MINGMING
• ZHANG TENGCHUANG

Assignees

• 安徽易立凯泰新材料有限公司

Dates

Publication Date

20260512

Application Date

20260114

Claims (10)

1. 1. The flame-retardant aqueous neoprene spraying adhesive is characterized by comprising, by mass, 2% -5% of an anti-aging agent, 2% -10% of a flame retardant, 11% -32% of a tackifying resin, 1% -4% of a thickener, 0.5% -4% of a pH value regulator and the balance neoprene latex.
2. 2. The flame retardant aqueous neoprene of claim 1 wherein the tackifying resin is an acrylic resin, a VAE resin or a combination thereof.
3. 3. The flame retardant aqueous neoprene spraying glue according to claim 1, characterized in that the flame retardant is a nano antimony trioxide dispersion.
4. 4. The flame retardant aqueous neoprene of claim 1, wherein the anti-aging agent is a p-phenylenediamine anti-aging agent, a diarylamines anti-aging agent, or a combination thereof.
5. 5. The flame retardant aqueous neoprene spraying glue according to claim 1, wherein the PH regulator is one or more of ammonia water, amino-2-methyl-1-propanol and glycine.
6. 6. Flame retardant aqueous neoprene according to claim 1, characterized in that the thickener is one or more of fumed silica, silica dispersion.
7. 7. The method for preparing the flame-retardant aqueous neoprene spraying adhesive according to claim 1, which is characterized by comprising the following steps: (1) Using absolute ethyl alcohol and water as solvents, adding antimony trioxide and a coupling agent, heating, stirring, filtering, vacuum drying and grinding to obtain the surface-treated antimony trioxide; (2) Mixing the treated antimony trioxide with deionized water, performing high-speed dispersion, and then sequentially adding an anionic surfactant and a thickener for continuous dispersion to obtain antimony trioxide dispersion; (3) Uniformly stirring the antimony trioxide dispersion liquid obtained in the step (2) and tackifying resin, adding a thickening agent, and adjusting the pH value to 7-8 to obtain a mixed liquid; (4) Mixing the mixed solution obtained in the step (3) with neoprene latex, an anti-aging agent and a thickening agent, dispersing, adding a PH regulator, regulating the PH value to be 9.0-9.5, obtaining dispersed aqueous neoprene spray adhesive, and filtering to obtain a finished product.
8. 8. The method for preparing flame retardant aqueous neoprene of claim 7, wherein the coupling agent in step (1) is gamma-aminopropyl triethoxysilane, methacryloxypropyl trimethoxysilane or a combination thereof.
9. 9. The method for preparing flame retardant aqueous neoprene spraying glue according to claim 7, wherein the anionic surfactant in the step (2) is sodium dodecyl benzene sulfonate.
10. 10. Use of the flame retardant aqueous neoprene according to claim 1 as an aircraft seat bonding material.

Description

Flame-retardant aqueous neoprene spray adhesive, and preparation method and application thereof Technical Field The invention relates to the field of adhesives, in particular to a flame-retardant aqueous neoprene spraying adhesive, and a preparation method and application thereof. Background The spray adhesive is a common adhesive used in the production of soft furniture, automobile seats, aviation seats and the like. The traditional solvent type spray adhesive contains a large amount of solvents such as ethyl acetate, butanone, toluene, alkane, chlorinated olefin and the like, is easy to remain in holes of the sponge, not only causes bad smell of a finished product to harm health, but also causes great harm to the health and environment of operators due to the emission of a large amount of VOC in the production process, and has great potential safety hazards such as easy occurrence of fire disaster and the like. The water-based spray adhesive is an environment-friendly adhesive taking water as a diluent. The aqueous spray adhesive can be used for bonding materials such as sponge, PVC, artificial leather, textile, wood and the like. The water-based spray adhesive does not contain organic solvents, has no pungent odor and 0VOC, can not corrode plastic materials such as polystyrene, has no influence on the color of textiles, can not cause the hardening and yellowing of the textiles, has excellent flame retardant property, can be self-extinguished after leaving fire, and accords with the flame performance test FAR 25.853 of aircraft materials. The solvent of the water-based spray glue is water, but the water can be gasified rapidly by adjusting the formula and using a special spray gun, thereby realizing drying. The aqueous spray glue contains environment-friendly auxiliaries such as mildew preventive and the like, and can be quickly dried after spraying, so that the phenomenon of mildew of the raw materials can not occur. For example, the Chinese patent application with publication number CN103865439A discloses a double-component aqueous neoprene spray adhesive, which uses water as solvent, the total organic volatile is zero, and the initial adhesive strength is high, and comprises the following two preparation steps of dissolving neoprene emulsion, polyurethane emulsion, polymethyl methacrylate emulsion, aqueous tackifying resin and zinc oxide in deionized water to obtain composite emulsion, adding aqueous tackifying resin, stabilizer, thixotropic agent and ultraviolet absorbent into the composite emulsion to obtain an aqueous chlorine Ding Pen adhesive finished product, and adding aqueous curing agent into the obtained aqueous chlorine Ding Pen adhesive finished product to be uniformly stirred during spraying, thus obtaining the aqueous neoprene spray adhesive. However, the flame retardant property of the aqueous neoprene spray adhesive can not meet the requirement of the aircraft seat bonding material, and if the flame retardant is added into the material components, demulsification can be caused, so that the storage of the material becomes extremely unstable. Disclosure of Invention The invention provides a flame-retardant aqueous neoprene spraying adhesive with excellent flame retardant property and stable storage, a preparation method and application thereof, and aims to solve the technical problems of poor flame retardant property and unstable storage of the existing aqueous neoprene spraying adhesive. The invention provides a flame-retardant aqueous neoprene spraying adhesive, which comprises the following components, by mass, 2% -5% of an anti-aging agent, 2% -10% of a flame retardant, 11% -32% of tackifying resin, 1% -4% of a thickening agent, 0.5% -4% of a pH value regulator and the balance neoprene latex. Preferably, the tackifying resin is an acrylic resin, a VAE resin, or a combination thereof. Preferably, the flame retardant is a nano antimony trioxide dispersion. Preferably, the anti-aging agent is a p-phenylenediamine anti-aging agent, a diary amine anti-aging agent, or a combination thereof. Preferably, the pH regulator is one or more of ammonia water, amino-2-methyl-1-propanol and glycine. Preferably, the thickener is one or more of fumed silica, silica dispersion. The invention also provides a preparation method of the flame-retardant aqueous neoprene spraying glue, which comprises the following steps of (1) preparing antimony trioxide dispersion liquid, using absolute ethanol and water as solvents, adding antimony trioxide and a coupling agent, heating to 55-65 ℃, stirring for 10-12 h, filtering, vacuum drying and grinding to obtain the antimony trioxide after surface treatment, wherein the surface of the antimony trioxide is generally more hydrophilic after surface modification. The method comprises the steps of (1) mixing treated antimony trioxide with deionized water, dispersing at a high speed, sequentially adding an anionic surfactant and a thickener, continuing to disperse to obtain