Film-forming agent for glass fiber sizing and method for preparing the same

Abstract

The application discloses a film forming agent for glass fiber impregnant and a preparation method thereof, and belongs to the technical field of film forming agents. 50-60 parts of starch are put into a container, 120-180 parts of distilled water are then put into the container, and then temperature rising stirring is carried out. 10-18 parts of cellulose, 5-10 parts of gelatin and 5-10 parts of white and black glue are put into the container, continuous stirring and temperature rising in the container are carried out, 5-8 parts of polyvinyl alcohol, 6-12 parts of plasticizer and 2-6 parts of surfactant are added to the container, and reaction is waited for a period of time. In the application, the surfactant is arranged, the flow adhesion of the film forming agent is enhanced, when the product is soaked in the glass fiber impregnant, the glass fiber impregnant can uniformly cover the surface of the product, the film coating effect on the product is improved, the plasticizer and the polyvinyl alcohol are arranged, the flexibility of the glass fiber impregnant after film forming is enhanced, the film layer on the surface of the film forming agent is not prone to breakage, and the quality of the product is improved.

Description

Technical Field

[0001] This invention belongs to the field of film-forming agent technology, and particularly relates to film-forming agents for glass fiber impregnation and their preparation methods. Background Technology

[0002] Film-forming agents regulate the photosensitive liquid, making it easier to coat and level; they also improve the adhesion between the photosensitive layer and the substrate, as well as the photochemical reaction rate of the photosensitive layer. These factors all contribute to the formation of a fixed film layer on the substrate. Film-forming agents must be well-mixable with the photosensitive substance and possess the same solubility, including water solubility, alkali solubility, and organic solvent solubility. However, existing film-forming agents still have certain problems in use. Their stretching effect is poor, and when the product is immersed in glass fiber sizing agents, the film layer formed by the film-forming agent on its surface is prone to breakage, resulting in poor coating effect and affecting product quality. Summary of the Invention

[0003] The purpose of this invention is to address the problem that existing film-forming agents have poor tensile properties, and the film layer formed by the film-forming agent on the surface of the product is prone to breakage after the product is immersed in the glass fiber sizing agent, resulting in poor coating effect on the product surface and affecting product quality. The invention proposes a film-forming agent for glass fiber sizing agents and its preparation method.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The preparation method of the film-forming agent for glass fiber impregnation specifically includes the following steps: S1. Select 50-60 parts of starch and put it into a container, then add 120-180 parts of distilled water into the container, and then heat and stir. S2. Take 10-18 parts of cellulose, 5-10 parts of gelatin and 5-10 parts of Bletilla striata gum and put them into a container. Stir continuously and increase the temperature inside the container. S3. Add 5-8 parts of polyvinyl alcohol, 6-12 parts of plasticizer and 2-6 parts of surfactant to the container, and wait for the reaction to proceed for a period of time. S4. Select 10-20 parts of nano-silica and 15-20 parts of calcium lignosulfonate, put them into a ball mill for grinding and mixing, collect the mixed powder and pour it into a container; S5. Add 4-6 parts of sodium oxalate to the container again and stir to react; S6. After stirring, continue heating to evaporate excess moisture; S7. Filter the mixture and take it out. Place it in a dryer to dry it. After drying, take the dried mixture out and put it into a ball mill for grinding. Finally, take out the film-forming agent.

[0005] As a further description of the above technical solution: In step S1, the stirring time is controlled to be 3-5 minutes, and the temperature is controlled to be 30-40℃.

[0006] As a further description of the above technical solution: In step S2, the stirring time is controlled to be 20-30 minutes, and the temperature is increased to 50-60℃.

[0007] As a further description of the above technical solution: In S3, the plasticizer is a mixture of two or more of glycerol, ethylene glycol, and sorbitol.

[0008] As a further description of the above technical solution: In S3, the surfactant is a mixture of two or more of the following: polysorbate 80, sodium dodecyl sulfate, and soybean lecithin.

[0009] As a further description of the above technical solution: In step S4, the specification of the mixed powder is controlled to be 150-200 mesh.

[0010] As a further description of the above technical solution: In step S5, the stirring time is controlled to be 20-30 minutes, and the stirring speed is controlled to be 120-160 r / min.

[0011] As a further description of the above technical solution: The glass fiber sizing agent is prepared using a film-forming agent preparation method.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: In this invention, by setting a surfactant, the flow and adhesion of the film-forming agent can be enhanced. When the product is immersed in the glass fiber sizing agent, the glass fiber sizing agent can evenly cover the surface of the product, improving the coating effect. The plasticizer and polyvinyl alcohol can enhance the flexibility of the glass fiber sizing agent after film formation, making the film layer covered by the film-forming agent less prone to breakage, thus improving the quality of the product. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0014] The present invention provides the following technical solution: Example 1: The preparation method of the film-forming agent for glass fiber impregnation specifically includes the following steps: S1. Select 50 parts of starch and put them into a container, then add 120 parts of distilled water into the container, and then heat and stir. In S1, the stirring time is controlled to be 3 minutes, and the temperature is controlled to be 30°C. S2. Take 10 parts of cellulose, 5 parts of gelatin and 5 parts of Bletilla striata gum and put them into a container. Stir continuously and increase the temperature inside the container. In S2, control the stirring time to be 20 minutes and increase the temperature to 50°C. S3. Add 5 parts of polyvinyl alcohol, 6 parts of plasticizer and 2 parts of surfactant to the container and wait for the reaction to proceed for a period of time. In S3, the plasticizer is a mixture of two or more of glycerol, ethylene glycol and sorbitol. In S3, the surfactant is a mixture of two or more of polysorbate 80, sodium lauryl sulfate and soybean lecithin. S4. Select 10 parts of nano-silica and 15 parts of calcium lignosulfonate, put them into a ball mill for grinding and mixing, collect the mixed powder and pour it into a container. In S4, the size of the mixed powder is controlled to be 150 mesh. S5. Add 4 parts of sodium oxalate to the container again and stir the reaction. In S5, the stirring time is controlled to be 20 min and the stirring speed is controlled to be 120 r / min. S6. After stirring, continue heating to evaporate excess moisture; S7. Filter the mixture and take it out. Place it in a dryer to dry it. After drying, take the dried mixture out and put it into a ball mill for grinding. Finally, take out the film-forming agent.

[0015] The glass fiber sizing agent film-forming agent is prepared using the above-mentioned preparation method for the glass fiber sizing agent film-forming agent.

[0016] Example 2: The preparation method of the film-forming agent for glass fiber impregnation specifically includes the following steps: S1. Select 55 parts of starch and put them into a container, then add 140 parts of distilled water into the container, and then heat and stir. In S1, the stirring time is controlled to be 4 minutes, and the temperature is controlled to be 35°C. S2. Take 14 parts of cellulose, 8 parts of gelatin and 8 parts of Bletilla striata gum and put them into a container. Stir continuously and increase the temperature inside the container. In S2, control the stirring time to be 25 minutes and increase the temperature to 55°C. S3. Add 7 parts of polyvinyl alcohol, 8 parts of plasticizer and 4 parts of surfactant to the container and wait for the reaction to proceed for a period of time. In S3, the plasticizer is a mixture of two or more of glycerol, ethylene glycol and sorbitol. In S3, the surfactant is a mixture of two or more of polysorbate 80, sodium lauryl sulfate and soybean lecithin. S4. Select 15 parts of nano-silica and 18 parts of calcium lignosulfonate, put them into a ball mill for grinding and mixing, collect the mixed powder and pour it into a container. In S4, the size of the mixed powder is controlled to be 180 mesh. S5. Add 5 parts of sodium oxalate to the container again and stir the reaction. In S5, the stirring time is controlled to be 25 min and the stirring speed is controlled to be 140 r / min. S6. After stirring, continue heating to evaporate excess moisture; S7. Filter the mixture and take it out. Place it in a dryer to dry it. After drying, take the dried mixture out and put it into a ball mill for grinding. Finally, take out the film-forming agent.

[0017] The glass fiber sizing agent film-forming agent is prepared using the above-mentioned preparation method for the glass fiber sizing agent film-forming agent.

[0018] Example 3: The preparation method of the film-forming agent for glass fiber impregnation specifically includes the following steps: S1. Select 60 parts of starch and put them into a container, then add 180 parts of distilled water into the container, and then heat and stir. In S1, the stirring time is controlled to be 5 minutes, and the temperature is controlled to be 40℃. S2. Take 18 parts of cellulose, 10 parts of gelatin and 10 parts of Bletilla striata gum and put them into a container. Stir continuously and increase the temperature inside the container. In S2, control the stirring time to be 30 minutes and increase the temperature to 50-60℃. S3. Add 8 parts of polyvinyl alcohol, 12 parts of plasticizer and 6 parts of surfactant to the container and wait for the reaction to proceed for a period of time. In S3, the plasticizer is a mixture of two or more of glycerol, ethylene glycol and sorbitol. In S3, the surfactant is a mixture of two or more of polysorbate 80, sodium dodecyl sulfate and soybean lecithin. S4. Select 20 parts of nano-silica and 20 parts of calcium lignosulfonate, put them into a ball mill for grinding and mixing, collect the mixed powder and pour it into a container. In S4, the size of the mixed powder is controlled to be 200 mesh. S5. Add 6 parts of sodium oxalate to the container again and stir the reaction. In S5, the stirring time is controlled to be 30 min and the stirring speed is controlled to be 160 r / min. S6. After stirring, continue heating to evaporate excess moisture; S7. Filter the mixture and take it out. Place it in a dryer to dry it. After drying, take the dried mixture out and put it into a ball mill for grinding. Finally, take out the film-forming agent.

[0019] The glass fiber sizing agent film-forming agent is prepared using the above-mentioned preparation method for the glass fiber sizing agent film-forming agent.

[0020] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for preparing a film-forming agent for glass fiber impregnation, characterized in that, Specifically, the following steps are included: S1. Select 50-60 parts of starch and put it into a container, then add 120-180 parts of distilled water into the container, and then heat and stir. S2. Take 10-18 parts of cellulose, 5-10 parts of gelatin and 5-10 parts of Bletilla striata gum and put them into a container. Stir continuously and increase the temperature inside the container. S3. Add 5-8 parts of polyvinyl alcohol, 6-12 parts of plasticizer and 2-6 parts of surfactant to the container, and wait for the reaction to proceed for a period of time. S4. Select 10-20 parts of nano-silica and 15-20 parts of calcium lignosulfonate, put them into a ball mill for grinding and mixing, collect the mixed powder and pour it into a container; S5. Add 4-6 parts of sodium oxalate to the container again and stir to react; S6. After stirring, continue heating to evaporate excess moisture; S7. Filter the mixture and take it out. Place it in a dryer to dry it. After drying, take the dried mixture out and put it into a ball mill for grinding. Finally, take out the film-forming agent.

2. The method for preparing the film-forming agent for glass fiber impregnation according to claim 1, characterized in that, In step S1, the stirring time is controlled to be 3-5 minutes, and the temperature is controlled to be 30-40℃.

3. The method for preparing the film-forming agent for glass fiber impregnation according to claim 1, characterized in that, In step S2, the stirring time is controlled to be 20-30 minutes, and the temperature is increased to 50-60℃.

4. The method for preparing the film-forming agent for glass fiber impregnation according to claim 1, characterized in that, In S3, the plasticizer is a mixture of two or more of glycerol, ethylene glycol, and sorbitol.

5. The method for preparing the film-forming agent for glass fiber impregnation according to claim 1, characterized in that, In S3, the surfactant is a mixture of two or more of the following: polysorbate 80, sodium dodecyl sulfate, and soybean lecithin.

6. The method for preparing the film-forming agent for glass fiber impregnation according to claim 1, characterized in that, In step S4, the specification of the mixed powder is controlled to be 150-200 mesh.

7. The method for preparing the film-forming agent for glass fiber impregnation according to claim 1, characterized in that, In step S5, the stirring time is controlled to be 20-30 minutes, and the stirring speed is controlled to be 120-160 r / min.

8. A film-forming agent for glass fiber impregnation, characterized in that, It is prepared by the method for preparing a film-forming agent for glass fiber impregnation as described in any one of claims 1-7.