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Flame-retardant antibacterial PVC material and preparation method thereof

A PVC material and PVC resin technology, applied in the field of plastics, can solve the problems of poor antibacterial specificity, high flammability, and weak binding force, etc., to reduce the amount of combustibles produced, good flame retardancy, and reduce the speed of mass loss Effect

Active Publication Date: 2021-10-29
浙江柏明胜医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many existing PVC materials have a fatal shortcoming: high flammability, which has buried hidden dangers for the occurrence of fires in production and life.
[0004]Patent No. CN101377069A, proposes a kind of humidity-adjusting, deodorizing, antibacterial and mildew-proof wallpaper, with nano-TiO2 and nano-ZnO as bactericidal additives, Composite with PVC resin to prepare humidity-adjusting, deodorizing, mildew-proof and anti-bacterial wallpaper, but this patent is an inorganic anti-bacterial agent, and the anti-bacterial specificity is poor
Patent No. CN103102618A, proposed TiO2@Ag / PVC composite antibacterial film and its preparation method, using titanium dioxide powder and silver nitrate as raw materials, successfully prepared TiO2@ Ag / PVC composite inhibitory film, which can effectively kill a large number of bacteria and viruses in a short period of time. This patent achieves the expected effect by physically compounding PVC, TiO2 and Ag particles, but three The binding force between them is not very strong

Method used

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  • Flame-retardant antibacterial PVC material and preparation method thereof
  • Flame-retardant antibacterial PVC material and preparation method thereof
  • Flame-retardant antibacterial PVC material and preparation method thereof

Examples

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Comparison scheme
Effect test

preparation example 1

[0034] The preparation method of antibacterial flame retardant is as follows:

[0035] S1. Mix and dissolve 1mol ethylene glycol and 1.2mol phosphorus oxychloride in 200mL dichloromethane, add 0.2mol aluminum trichloride, reflux at 45°C for 3h, add 200mL saturated sodium carbonate solution, filter, and dichloromethane for solids Washing and drying at 90°C for 2 hours gave Intermediate A, the structure of which was shown in Formula II;

[0036]

[0037] Formula II;

[0038] synthetic route:

[0039]

[0040] S2. Dissolve 1 mol of 4-aminobenzene-1,3-diol in 200 mL of dichloromethane, add 1.02 mol of benzoic acid and 0.5 mol of polyphosphoric acid, react at reflux at 45°C for 5 hours, add 200 mL of saturated sodium carbonate solution, and filter , the solid was washed with dichloromethane and dried to obtain intermediate B, the structure of which is shown in formula III;

[0041]

[0042] Formula III;

[0043] synthetic route:

[0044]

[0045] S3. Dissolve 1.01 ...

preparation example 2

[0049] The preparation method of antibacterial flame retardant is as follows:

[0050] S1. Mix and dissolve 1mol ethylene glycol and 1.5mol phosphorus oxychloride in 200mL dichloromethane, add 0.3mol aluminum trichloride, reflux at 45°C for 6h, add 200mL saturated sodium carbonate solution, filter, and dichloromethane for solids Washing, drying at 90°C for 2 hours to obtain Intermediate A;

[0051] S2. Dissolve 1mol of 4-aminobenzene-1,3-diol in 200mL of dichloromethane, add 1.1mol of benzoic acid and 1mol of polyphosphoric acid, react for 5-10h under reflux at 45°C, add 200mL of saturated sodium carbonate solution, Filtration, the solid was washed with dichloromethane, and dried to obtain intermediate B;

[0052] S3. Dissolve 1.05 mol of intermediate B in 200 mL of dichloromethane, under nitrogen protection, add 1 mol of intermediate A and 3 mol of triethylamine, react at 0°C for 2 hours, add 200 mL of saturated sodium carbonate solution, filter, and wash the solid with dich...

preparation example 3

[0054] The preparation method of antibacterial flame retardant is as follows:

[0055] S1. Mix and dissolve 1mol ethylene glycol and 1.35mol phosphorus oxychloride in 200mL dichloromethane, add 0.25mol aluminum trichloride, reflux at 45°C for 4 hours, add 200mL saturated sodium carbonate solution, filter, and dichloromethane Washing, drying at 90°C for 2 hours to obtain Intermediate A;

[0056] S2. Dissolve 1 mol of 4-aminobenzene-1,3-diol in 200 mL of dichloromethane, add 1.06 mol of benzoic acid and 0.7 mol of polyphosphoric acid, react at 45°C for 7 hours, add 200 mL of saturated sodium carbonate solution, and filter , the solid was washed with dichloromethane and dried to obtain Intermediate B;

[0057] S3. Dissolve 1.03 mol of intermediate B in 200 mL of dichloromethane, under nitrogen protection, add 1 mol of intermediate A and 3 mol of triethylamine, react at 0°C for 1.5 h, add 200 mL of saturated sodium carbonate solution, filter, and distill the solid with di Wash w...

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Abstract

The invention provides a flame-retardant antibacterial PVC material and a preparation method thereof, and belongs to the technical field of plastics. The flame-retardant antibacterial PVC material is prepared from the following raw materials by weight: 3-7 parts of an antibacterial flame retardant, 80-120 parts of PVC resin, 5-10 parts of a plasticizer, 2-5 parts of a smoke suppressant, and 1-2 parts of a heat stabilizer; the antibacterial flame retardant has a structure as shown in a formula I. The PVC material prepared by the invention has excellent flame-retardant and antibacterial properties, good mechanical properties, heat-resistant stability and good aging resistance, and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to a flame-retardant and antibacterial PVC material and a preparation method thereof. Background technique [0002] Plastic is a synthetic polymer material with a wide range of uses, and plastic products abound in our daily lives. From school supplies, daily necessities to household appliances, plastics have gradually replaced many utensils and materials that have been used for decades or even hundreds of years due to their excellent performance, and have become an indispensable substance in people's lives. With the rapid development of the polymer material industry, plastic processing has formed a department with complete categories and varieties in just a few decades, which plays an important role in the development of the national economy. [0003] Polyvinyl chloride (PVC) is a thermoplastic polymer produced by free radical polymerization of vinyl chloride monomer. It is one of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/527C08K5/12C08K5/11C08K5/405C08K5/098
CPCC08K5/527C08K5/12C08K5/11C08K5/405C08K5/098C08L2201/02C08L2201/08C08L27/06
Inventor 戴科元
Owner 浙江柏明胜医疗科技有限公司
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