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A kind of glass fiber coating and preparation method thereof

A coating and glass fiber technology, applied in the field of high-performance glass fiber coating and its preparation, can solve the problems of poor storage stability and poor alkali resistance, and achieve excellent alkali resistance, strong water resistance and high storage stability. Effect

Active Publication Date: 2021-09-28
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 problem of poor stability; through this technical scheme, the water resistance, alkali resistance and storage stability of the coating can be effectively improved, and it has both the performance advantages of urea-formaldehyde resin and acrylate resin, and at the same time improves the polymer's overall performance

Method used

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  • A kind of glass fiber coating and preparation method thereof
  • A kind of glass fiber coating and preparation method thereof
  • A kind of glass fiber coating and preparation method thereof

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preparation example Construction

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

[0063] (1) Raw material ratio of modified urea-formaldehyde resin glue

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

[0065] (2) The formula of modified urea-formaldehyde resin is shown in the following table 2:

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

[0067] raw material name Dosage (kg) formaldehyde 171.5 Urea (1) 67.2 Urea (2) 16.8 Acrylamide 14 Melamine 50.4 Azobisisobutylamidine hydrochloride 0.45 20% NaOH Appropriate amount 15% hydrogen chloride Appropriate amount water Appropriate amount

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

[0069] Add the first batch of formaldehyde to the reaction kettle, and adjust its pH to 8.5-9, then add the first b...

Embodiment 1

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

[0072] 1), the preparation of cationic seed emulsion

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

[0074] Add bottoming water into the reaction kettle, add dispersant (cationic starch dispersion with a mass concentration of 25%), emulsifier (cationic emulsifier or cationic reactive emulsifier), azobisisobutylamidine hydrochloride during stirring , after vacuum degassing, pass nitrogen to catch oxygen and raise the temperature, add the primer monomer dropwise at 70°C, and keep it warm for 30 minutes after dropping, the preparation of the primer seed emulsion is completed.

[0075] 2), the preparation of pre-emulsion

[0076] The emulsif...

Embodiment 2

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

[0086] 1), the preparation of cationic seed emulsion

[0087] The ratio of seed emulsion 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 bottoming water into the reaction kettle, add dispersant (cationic starch dispersion with a mass concentration of 25%), emulsifier (cationic emulsifier or cationic reactive emulsifier), azobisisobutylamidine hydrochloride during stirring , after vacuum degassing, pass nitrogen to catch oxygen and raise the temperature, add the primer monomer dropwise at 70°C, and keep it warm for 30 minutes after dropping, the preparation of the primer seed emulsion is completed.

[0089] 2), the preparation of pre-emulsion

[00...

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Abstract

The invention discloses a high-performance glass fiber coating and a preparation method thereof. The glass fiber coating and the preparation method aim to solve the technical problems of poor alkali resistance and poor storage stability of the existing urea-formaldehyde resin coating; the glass fiber coating The coating is counted in parts by mass, and the raw material components include: 40-70 parts of water, 20-30 parts of acrylate monomer, 1-5 parts of acrylate functional monomer, 10-30 parts of modified urea-formaldehyde resin glue, 0.5-5 parts of polymerization stabilizer, 0.1-1.5 parts of azobisisobutylamidine hydrochloride, 0.1-0.5 parts of azobisisobutyronitrile, 0.1-3 parts of cationic emulsifier or cationic reactive emulsifier, cationic starch dispersion Solution 4-7 parts, acid-base buffer 0.05-0.5, chain transfer aid 0.1-5. The technical solution can effectively improve the water resistance, alkali resistance and storage stability of the coating, and make it have the performance advantages of urea-formaldehyde resin and acrylate resin, and improve the overall performance of the polymer.

Description

technical field [0001] The invention belongs to the field of paint, painting and coating, and in particular 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 made of a cationic emulsifier or a positively charged monomer. Its basic feature is that the surface of the latex particles or the polymer itself is positively charged; Cationic polymer emulsion has a good balance of positive and negative charges, and also has the functions of sterilization, flocculation, slow release, etc., so it has incomparable functions in many aspects with anionic or nonionic emulsions. [0003] Acrylic polymer emulsions have become a research hotspot because of their excellent coating properties, water resistance, adhesion and coating elasticity; acrylic cationic polymer emulsions have endowed acrylate polymers with positive charges. It has better antibacterial pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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