Method for preparing bathroom mat from nano antibacterial and mildew-proof environment-friendly material

Abstract

The invention relates to a method for preparing a bathroom mat from a nano antibacterial and mildew-proof environment-friendly material, and belongs to the technical field of bathroom mats. Polyvinyl chloride, an antioxidant, a stabilizer, trioctyl trimellitate, a filler, polyester, a lubricant, a plasticizer and a mildew-proof antibacterial agent are put into a mixing machine to be stirred, extruded in a double-screw extruder, mixed on a double-roller open mill and tableted on a flat vulcanizing machine, and the nano antibacterial mildew-proof environment-friendly material bathroom mat is obtained. The mildew-proof antibacterial agent is prepared by the following steps: stirring 3-mercaptoquinoline, methyl pyrrolidone, O-allyl-2-bromophenol ether and triethanolamine to react; adding tributyl isopropenyl tin, stirring to react, and distilling to remove the methyl pyrrolidone, thereby obtaining the product. The prepared bathroom mat has excellent mildew resistance and good bacteria resistance, has lasting mildew-proof and antibacterial effects, and is an ideal bathroom mat manufacturing material.

Description

Technical Field

[0001] The invention relates to the technical field of bathroom mats, in particular to a method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material. Background Art

[0002] Nano antibacterial and mildew-proof environmentally friendly materials are a new type of antibacterial material. It uses nanotechnology to embed antibacterial agents into the material to achieve the effect of antibacterial and mildew-proof. This material not only has good antibacterial properties, but also effectively prevents the growth of mold and keeps the bathroom mat clean and hygienic. In addition, nano antibacterial and mildew-proof environmentally friendly materials also have environmentally friendly characteristics, are environmentally friendly, and meet the needs of modern homes for environmental protection and health.

[0003] Chinese patent CN103431736A: discloses a bathroom mat, including an integrally formed pad, the pad is made of EPP, and a plurality of protrusions are provided on the upper surface of the pad to increase contact friction with the human body.

[0004] Chinese patent CN118580584A: relates to a method for preparing a rubber composition bathroom anti-slip mat, wherein modified glass fiber is added to nitrile rubber as a filler, and the modified glass fiber contains a lithium complex and an octadecadienoic acid / neodymium complex.

[0005] Chinese patent CN118580621A: relates to the technical field of PVC anti-skid pads, and discloses a PVC foam anti-skid pad and its production process. The PVC foam anti-skid pad includes the following raw materials in parts by weight: 80-100 parts of PVC powder, 5-12 parts of plasticizer, 5-10 parts of ethylene-vinyl acetate copolymer, 10-15 parts of modified polyurethane powder, 3-6 parts of reinforcing filler, 0.5-4.5 parts of foaming agent, 50-120 parts of auxiliary agent, and 0.5-2 parts of heat stabilizer.

[0006] The bathroom mats prepared by the above patents and prior art are prone to breed harmful substances such as bacteria and mold, which leads to the infiltration and growth of harmful microorganisms such as bacteria and mold in life, resulting in bacterial infection during use. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material, and the operating steps are as follows: S1: Weigh 80-100 parts of polyvinyl chloride S-65, 0.1-0.3 parts of antioxidant, 0.1-0.5 parts of stabilizer, 50-70 parts of trioctyl trimellitate, 40-60 parts of filler, 50-70 parts of polyester W2310, 0.2-2 parts of lubricant, 0.1-1 parts of plasticizer, and 0.2-2 parts of mildew and antibacterial agent, put them into a mixer, and stir at 80-100°C for 10-20 minutes; S2: put into a twin-screw extruder and extrude at 175-185°C; S3: Then mix on a two-roll mill at 150-160°C; S4: Finally, the sheet is pressed on a flat vulcanizing machine at 155-165° C. to obtain a nano antibacterial and anti-mildew environmentally friendly material bathroom mat.

[0008] Furthermore, the antioxidant is one of octadecyl propionate, 2,6-di-tert-butyl-p-cresol, diaryl secondary amine, and p-phenylenediamine.

[0009] Furthermore, the stabilizer is one of calcium stearate, calcium ricinoleate, zinc stearate, zinc ricinoleate, and epoxidized soybean oil.

[0010] Furthermore, the filler is one of calcium carbonate, talc, wollastonite, glass fiber and carbon fiber.

[0011] Furthermore, the lubricant is one of liquid paraffin, polyethylene wax, stearic acid, stearic acid soap, fatty acid amide, butyl stearate, stearyl alcohol, and pentaerythritol.

[0012] Furthermore, the plasticizer is one of tricresyl phosphate, triphenyl phosphate, dioctyl phthalate, diisooctyl phthalate, dioctyl adipate, and dioctyl sebacate.

[0013] Furthermore, the preparation method of the mildew and antibacterial agent is as follows: H1: by weight, 16-32 parts of 3-mercaptoquinoline, 200-300 parts of methylpyrrolidone, 0.07-0.7 parts of O-allyl-2-bromophenol ether, and 2-5 parts of triethanolamine are stirred at 70-80°C for 60-120 minutes; H2: Add 33-66 parts of tributyl isopropenyltin, stir and react at 50-60°C for 40-100 minutes, and distill off the methyl pyrrolidone to obtain the mildew and antibacterial agent.

[0014] Reaction mechanism 3-Mercaptoquinoline acts as a nucleophilic reagent to attack the double-bonded carbon atom on the allyl group in O-allyl-2-bromophenol ether, resulting in the first Michael addition reaction; another double-bonded carbon atom in the product of the previous step again acts as an electrophilic center to undergo a second Michael addition reaction with tributyl isopropenyltin to form the final antifungal and antibacterial agent.

[0015] Technical Effects The method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material of the present invention has the following significant effects compared with the prior art: 1. Highly effective antibacterial and mildew-proof: The mildew and antibacterial agent formed by two Michael addition reactions has a unique chemical structure, which can effectively inhibit the growth of mildew and bacteria and keep the bathroom mat clean and hygienic; the raw materials and solvents used in the preparation process meet environmental protection requirements and reduce pollution to the environment; at the same time, the product itself will not release harmful substances during use and is harmless to human health.

[0016] 2. Good stability: The anti-mildew and antibacterial agent can still maintain stable performance in harsh environments such as high temperature and high humidity, extending the service life of the bathroom mat.

[0017] 3. Persistence: Due to the stability of its chemical structure, the anti-mildew and antibacterial effect is long-lasting, not easy to be worn or washed off, and can still maintain good antibacterial properties after long-term use. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description in combination with embodiments and comparative examples: The powder change test of polyvinyl chloride composite materials was carried out with reference to the Standard Test Method for Evaluating Antimicrobial Properties in or on Polymer Solids (ASTME1428-15a), and the growth of bacteria around the test drug was inhibited by diffusion in the agar plate to form a transparent circle. The performance of the anti-mold and anti-bacterial agent used in the article to resist mold and bacterial invasion was tested in accordance with the Antimicrobial Plastic (Composite) Flexible Packaging (T / SHBX012-2021); the qualitative method of using the test drug to diffuse in the agar plate to inhibit the growth of bacteria around it to form a transparent circle, and observing the size of the transparent circle formed by the surrounding bacterial growth can indicate the effect of the anti-mold and anti-bacterial agent in resisting bacterial production. The test method is to apply the anti-mold and anti-bacterial agent to the surface of the original culture medium in a specific way, and the culture medium contains bacterial culture agar for the test. After the antibacterial agent is applied, it diffuses in a three-dimensional shape in the specific culture medium. If the antifungal and antibacterial agent can inhibit the growth and reproduction of the bacteria used in the test, a transparent circle will be formed near it. The ability of the antifungal and antibacterial agent to inhibit bacterial growth can be evaluated by observing the size of the transparent circle; the "Antibacterial Plastic (Composite) Flexible Packaging" (T / SHBX012-2021) standard is: A transparent circle size greater than 99% indicates that the antifungal and antibacterial agent has a strong ability to resist bacterial generation, and a transparent circle greater than 90% indicates that the antibacterial agent has a certain ability to resist bacterial generation.

[0019] Example 1 A method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material, the operating steps of which are as follows: S1: Weigh 80g polyvinyl chloride S-65, 0.1g antioxidant, 0.1g stabilizer, 50g trioctyl trimellitate, 40g filler, 50g polyester W2310, 0.2g lubricant, 0.1g plasticizer, 0.2g mildew and antibacterial agent, put into a mixer, and stir at 80°C for 10min; S2: put into a twin-screw extruder and extrude at 175°C; S3: then mixing on a two-roll mill at 150°C; S4: Finally, the sheet is pressed on a flat vulcanizing machine at 155° C. to obtain a nano antibacterial and anti-mildew environmentally friendly material bathroom mat.

[0020] The antioxidant is octadecyl propionate.

[0021] The stabilizer is calcium stearate.

[0022] The filler is calcium carbonate.

[0023] The lubricant is liquid paraffin.

[0024] The plasticizer is tricresyl phosphate.

[0025] The preparation method of the mildew and antibacterial agent is: H1: 16 g 3-mercaptoquinoline, 200 g methylpyrrolidone, 0.07 g O-allyl-2-bromophenol ether, and 2 g triethanolamine were stirred at 70 °C for 60 min; H2: Add 33 g of tributyl isopropenyltin, stir and react at 50°C for 40 min, and distill off the methyl pyrrolidone to obtain the mildew and antibacterial agent.

[0026] Example 2 A method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material, the operating steps of which are as follows: S1: Weigh 85g polyvinyl chloride S-65, 0.2g antioxidant, 0.2g stabilizer, 55g trioctyl trimellitate, 45g filler, 55g polyester W2310, 1g lubricant, 0.5g plasticizer, 1g mildew and antibacterial agent, put into a mixer, and stir at 85°C for 15min; S2: put into a twin-screw extruder and extrude at 180°C; S3: then mixing on a two-roll mill at 155°C; S4: Finally, the sheet is pressed on a flat vulcanizing machine at 160° C. to obtain a nano antibacterial and anti-mildew environmentally friendly material bathroom mat.

[0027] The antioxidant is 2,6-di-tert-butyl-p-cresol.

[0028] The stabilizer is calcium ricinoleate.

[0029] The filler is talcum powder.

[0030] The lubricant is polyethylene wax.

[0031] The plasticizer is triphenyl phosphate.

[0032] The preparation method of the mildew and antibacterial agent is: H1: 20g 3-mercaptoquinoline, 240g methylpyrrolidone, 0.2g O-allyl-2-bromophenol ether, 3g triethanolamine, stirred at 75°C for 80min; H2: Add 44 g of tributyl isopropenyltin, stir and react at 55°C for 60 min, and distill off the methyl pyrrolidone to obtain the mildew and antibacterial agent.

[0033] Example 3 A method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material, the operating steps of which are as follows: S1: Weigh 95g polyvinyl chloride S-65, 0.2g antioxidant, 0.4g stabilizer, 65g trioctyl trimellitate, 55g filler, 65g polyester W2310, 1.5g lubricant, 0.8g plasticizer, 1.5g mildew and antibacterial agent, put into a mixer, and stir at 95°C for 15min; S2: put into a twin-screw extruder and extrude at 180°C; S3: then mixing on a two-roll mill at 155°C; S4: Finally, the sheet is pressed on a flat vulcanizing machine at 160° C. to obtain a nano antibacterial and anti-mildew environmentally friendly material bathroom mat.

[0034] The antioxidant is a diaryl secondary amine.

[0035] The stabilizer is zinc stearate.

[0036] The filler is wollastonite.

[0037] The lubricant is stearic acid.

[0038] The plasticizer is dioctyl phthalate.

[0039] The preparation method of the mildew and antibacterial agent is: H1: 28g 3-mercaptoquinoline, 280g methylpyrrolidone, 0.5g O-allyl-2-bromophenol ether, 4g triethanolamine, stirred at 75°C for 100min; H2: Add 55 g of tributyl isopropenyltin, stir and react at 55°C for 80 min, and distill off the methyl pyrrolidone to obtain the mildew and antibacterial agent.

[0040] Example 4 A method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material, the operating steps of which are as follows: S1: Weigh 100g polyvinyl chloride S-65, 0.3g antioxidant, 0.5g stabilizer, 70g trioctyl trimellitate, 60g filler, 70g polyester W2310, 2g lubricant, 1g plasticizer, 2g mildew and antibacterial agent, put into a mixer, and stir at 100°C for 20min; S2: put into a twin-screw extruder and extrude at 185°C; S3: Then, mixing was performed on a two-roll mill at 160°C; S4: Finally, the sheet is pressed on a flat vulcanizing machine at 165° C. to obtain a nano antibacterial and anti-mildew environmentally friendly material bathroom mat.

[0041] The antioxidant is p-phenylenediamine.

[0042] The stabilizer is epoxidized soybean oil.

[0043] The filler is carbon fiber.

[0044] The lubricant is pentaerythritol.

[0045] The plasticizer is dioctyl sebacate.

[0046] The preparation method of the mildew and antibacterial agent is: H1: 32g 3-mercaptoquinoline, 300g methylpyrrolidone, 0.7g O-allyl-2-bromophenol ether, 5g triethanolamine, stirred at 80°C for 120min; H2: Add 66 g of tributyl isopropenyltin, stir and react at 60°C for 100 min, and distill off the methyl pyrrolidone to obtain the mildew and antibacterial agent.

[0047] Comparative Example 1 No mildew and antibacterial agent was added, and the rest was the same as in Example 1.

[0048] Comparative Example 2 O-allyl-2-bromophenol ether was not added, and the other steps were the same as in Example 1.

[0049] Comparative Example 3 Tributyltin is not added, and the other steps are the same as in Example 1.

[0050] The test results are shown in the following table: Table 1 Powder change level / grade Antibacterial diameter / mm Antifungal rate after 100 days / % Example 1 1 5.4 98.83 Example 2 0 5.5 99.91 Example 3 0 5.8 99.95 Example 4 0 6.1 99.99 Comparative Example 1 3 3.2 85.37 Comparative Example 2 2 4.8 94.55 Comparative Example 3 2 5.0 96.12 Through the data analysis of the above embodiments and comparative examples, the bathroom mat prepared by the present invention has excellent mildew resistance and good bacteria resistance, and the mildew and antibacterial effect is long-lasting.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material, the operating steps of which are: S1: Weigh 80-100 parts of polyvinyl chloride S-65, 0.1-0.3 parts of antioxidant, 0.1-0.5 parts of stabilizer, 50-70 parts of trioctyl trimellitate, 40-60 parts of filler, 50-70 parts of polyester W2310, 0.2-2 parts of lubricant, 0.1-1 parts of plasticizer, and 0.2-2 parts of mildew and antibacterial agent, put them into a mixer, and stir at 80-100°C for 10-20 minutes; S2: put into a twin-screw extruder and extrude at 175-185°C; S3: Then mix on a two-roll mill at 150-160°C; S4: Finally, the sheet is pressed on a flat vulcanizing machine at 155-165° C. to obtain a nano antibacterial and anti-mildew environmentally friendly material bathroom mat.

2. The method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material according to claim 1, characterized in that: The antioxidant is one of octadecyl propionate, 2,6-di-tert-butyl-p-cresol, diaryl secondary amine and p-phenylenediamine.

3. The method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material according to claim 1, characterized in that: The stabilizer is one of calcium stearate, calcium ricinoleate, zinc stearate, zinc ricinoleate and epoxidized soybean oil.

4. The method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material according to claim 1, characterized in that: The filler is one of calcium carbonate, talcum powder, wollastonite, glass fiber and carbon fiber.

5. The method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material according to claim 1, characterized in that: The lubricant is one of liquid paraffin, polyethylene wax, stearic acid, stearic acid soap, fatty acid amide, butyl stearate, stearyl alcohol and pentaerythritol.

6. The method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material according to claim 1, characterized in that: The plasticizer is one of tricresyl phosphate, triphenyl phosphate, dioctyl phthalate, diisooctyl phthalate, dioctyl adipate and dioctyl sebacate.

7. The method for preparing a bathroom mat from a nano antibacterial and mildew-proof environmentally friendly material according to claim 1, characterized in that: The preparation method of the mildew and antibacterial agent is: H1: by weight, 16-32 parts of 3-mercaptoquinoline, 200-300 parts of methylpyrrolidone, 0.07-0.7 parts of O-allyl-2-bromophenol ether, and 2-5 parts of triethanolamine are stirred at 70-80°C for 60-120 minutes; H2: Add 33-66 parts of tributyl isopropenyltin, stir and react at 50-60°C for 40-100 minutes, and distill off the methyl pyrrolidone to obtain the mildew and antibacterial agent.