High-performance glass fiber coating and preparation method thereof

A glass fiber coating, high-performance technology, applied in the field of coating and coating, coating, can solve the problems of poor alkali resistance, poor storage stability, etc., and achieve the effect of improving alkali resistance

Active Publication Date: 2019-06-21
九江华源新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a high-performance glass fiber coating and its preparation method, which aims to solve the problem of poor alkali resistance and storage problems of existing urea-formaldehyde resin coatings. The technical prob

Method used

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  • High-performance glass fiber coating and preparation method thereof
  • High-performance glass fiber coating and preparation method thereof
  • High-performance glass fiber coating and preparation method thereof

Examples

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preparation example Construction

[0062] 2. Preparation of modified micro-crosslinked urea-formaldehyde resin adhesive

[0063] (1) The raw material ratio of modified urea-formaldehyde resin adhesive

[0064] Wherein, the molar ratio of formaldehyde: urea: melamine: acrylamide: azobisisobutamidine hydrochloride to the total amount used is 2:1.4:0.4:0.2:0.002.

[0065] (2) The formula of modified urea-formaldehyde resin is shown in Table 2 below:

[0066] Table 2. Formula of modified urea-formaldehyde resin adhesive

[0067] raw material name Dosage (kg) formaldehyde171.5 Urea (1)67.2 Urea (2)16.8 Acrylamide14 Melamine50.4 Azodiisobutamidine hydrochloride0.45 20% sodium hydroxide Right amount 15% hydrogen chloride Right amount water Right amount

[0068] (3) Preparation process of modified urea-formaldehyde resin adhesive

[0069] Add the first batch of formaldehyde to the reactor and adjust its pH to 8.5-9, then add the first batch of urea to it, heat to 90°C and react for 30 minutes, then adjust its pH to 4...

Embodiment 1

[0071] A preparation method of urea-formaldehyde resin modified acrylate cationic emulsion and its interpenetrating network structure polymer includes the following steps (the following proportions are parts by weight, and the unit is kg):

[0072] 1) Preparation of cationic seed emulsion

[0073] The seed emulsion ratio is: cationic starch glue (25%) is 7.4, CTAB is 0.95, AIBA is 0.3, water is 160, St is 7.2, BA is 5.4, and HEA is 2.0.

[0074] Add the bottoming water to the reaction kettle, add dispersant (cationic starch dispersion with a mass concentration of 25%), emulsifier (cationic emulsifier or cationic reactive emulsifier), azobisisobutamidine hydrochloride during stirring After vacuum degassing, nitrogen is blown to drive oxygen and the temperature is raised. The primer monomer is added dropwise at 70°C. After dripping and keeping for 30 minutes, the primer seed emulsion is prepared.

[0075] 2) Preparation of pre-emulsion

[0076] The ratio of emulsification (water phase) o...

Embodiment 2

[0085] A preparation method of urea-formaldehyde resin modified acrylate cationic emulsion and its interpenetrating network structure polymer includes the following steps (the following proportions are parts by weight, and the unit is kg):

[0086] 1) Preparation of cationic seed emulsion

[0087] The seed emulsion ratio is: cationic starch glue (25%) is 7.4, CTAB is 0.95, AIBA is 0.3, water is 160, BA is 12.6, and HPA is 2.0.

[0088] Add the bottoming water to the reaction kettle, add dispersant (cationic starch dispersion with a mass concentration of 25%), emulsifier (cationic emulsifier or cationic reactive emulsifier), azobisisobutamidine hydrochloride during stirring After vacuum degassing, nitrogen is blown to drive oxygen and the temperature is raised. The primer monomer is added dropwise at 70°C. After dripping and keeping for 30 minutes, the primer seed emulsion is prepared.

[0089] 2) Preparation of pre-emulsion

[0090] The ratio of the emulsification (water phase) of the ...

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Abstract

The invention discloses a high-performance glass fiber coating and a preparation method thereof and aims to solve the technical problems of poor alkaline resistance and poor storage stability of the conventional urea-formaldehyde resin coating. The glass fiber coating comprises raw materials in parts by mass as follows: 40-70 parts of water, 20-30 parts of acrylic monomers, 1-5 parts of acrylic functional monomers, 10-30 parts of a modified urea-formaldehyde resin adhesive, 0.5-5 parts of a polymerization stabilizer, 0.1-1.5 parts of 2,2'-azobis(2-methylpropionamidine) dihydrochloride, 0.1-0.5parts of azobisisobutyronitrile, 0.1-3 parts of a cationic emulsifier or a cationic reactive emulsifier, 4-7 parts of cationic starch dispersion, 0.05-0.5 parts of an acid-base buffer agent and 0.1-5parts of a chain transfer auxiliary. According to the technical scheme, water resistance, alkaline resistance and storage stability of the coating can be improved effectively, the coating further hasperformance and advantages of urea-formaldehyde resin and acrylate resin, and overall performance of a polymer is improved.

Description

Technical field [0001] The invention belongs to the field of paint, painting and coating, and specifically relates to a high-performance glass fiber coating and a preparation method thereof. Background technique [0002] Cationic polymer emulsion (CPE) is a homopolymer or copolymer emulsion prepared with cationic emulsifiers or positively charged monomers. Its basic feature is that the surface of latex particles or the polymer itself is positively charged; The cationic polymer emulsion has a good balance of positive and negative charges, and also has the functions of sterilization, flocculation, and slow release. Therefore, in many aspects, it has the incomparable functions of anionic or nonionic emulsions. [0003] Acrylic polymer emulsions have become a research hotspot due to their excellent filmability, water resistance, adhesion and coating elasticity; acrylic cationic polymer emulsions are positively charged, giving acrylate polymers It has good antibacterial properties and ...

Claims

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Application Information

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IPC IPC(8): C03C25/34C03C25/285
Inventor 江永波廖章煜
Owner 九江华源新材料有限公司
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