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Silver-containing nylon 6-based composite resin material and preparation method thereof

A composite resin and nylon technology is applied in the field of nylon 6-based composite resin and its preparation to achieve the effects of short preparation cycle, excellent antibacterial properties and simple process

Active Publication Date: 2012-10-03
上海仕天工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a kind of silver-containing nylon 6 base composite resin material and preparation method thereof, to overcome the defective that existing blending technology exists

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Add 3g of polyvinylpyrrolidone K30 to dissolve 1g of ammonia water with a weight concentration of 28%, add 3g of silver nitrate, and stir for 10min to form a light yellow solution, then add ascorbic acid aqueous solution with a concentration of 0.5mg / ml. The weight is 3.6g; stir and ultrasonically oscillate for 35min to obtain a sol;

[0029] (2) Add the above sol to 997g of molten caprolactam and mix, add 1g of NaOH as a catalyst, and carry out polymerization under nitrogen protection, and then dehydrate under reduced pressure at the end of the reaction at 220°C until the reaction system is anhydrous and discharged in the polymerization kettle. 0.5MPa, obtain nylon 6 / Ag composite resin material;

[0030] The polymerization pressure is 1MPa, and the polymerization temperature is 280°C;

[0031] The method provided by the document In situ synthesis of silver nano-particles in polymethylmethacrylate (Materials Chemistry and Physics, V104, 2-3, P 367-372) is used for ...

Embodiment 2

[0036] (1) Dissolve 5g of ammonia water with a weight concentration of 25%, add 5g of polyvinylpyrrolidone K30 to dissolve, add 5g of silver nitrate, stir for 30min to form a light yellow solution, then add ascorbic acid aqueous solution with a concentration of 1mg / ml, the total weight of ascorbic acid added It was 7.5g; stirred and ultrasonically oscillated for 65min to obtain a sol;

[0037] (2) Add the above sol to 995g of molten caprolactam and mix, add 5g of NaOH as a catalyst, carry out polymerization under the protection of nitrogen, and then dehydrate under reduced pressure at the end of the reaction at 220°C until the reaction system is anhydrous and discharged in the polymerization kettle. 0.7MPa, obtain nylon 6 / Ag composite resin material;

[0038] The polymerization pressure is 2MPa, and the polymerization temperature is 275°C;

[0039] The method provided by the document In situ synthesis of silver nano-particles in polymethylmethacrylate (Materials Chemistry and...

Embodiment 3

[0044] (1) Add 8g of polyvinylpyrrolidone K30 to dissolve 4g of NH3 ammonia water with a weight concentration of 25-28%, add 8g of silver nitrate, stir for 60min to form a light yellow solution, then add ascorbic acid aqueous solution with a concentration of 1.5mg / ml, add ascorbic acid The total weight is 7.5g; Stir, ultrasonic vibration 95min, obtain sol;

[0045] (2) Add the above sol to 992g of molten caprolactam and mix, add 5g of NaOH as a catalyst, carry out polymerization under the protection of nitrogen, and then dehydrate under reduced pressure at the end of the reaction at 220°C until the reaction system is anhydrous and discharged in the polymerization kettle. 0.3MPa, obtain nylon 6 / Ag composite resin material;

[0046] The polymerization pressure is 0.7MPa, and the polymerization temperature is 260°C;

[0047] The method provided by the document In situ synthesis of silver nano-particles in polymethylmethacrylate (Materials Chemistry and Physics, V104, 2-3, P 367-...

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Abstract

The invention discloses a silver-containing nylon 6-based composite resin material and a preparation method thereof. The silver-containing nylon 6-based composite resin material is prepared by caprolactam, soluble silver salt, polyvinylpyrrolidone, ascorbic acid aqueous solution, ammonia, a alkaline catalyst and solvent as raw materials by using an in situ polymerization method. The amount of each component is as below : the soluble silver salt is 0.3-3 wt% of the weight of caprolactam, the polyvinylpyrrolidone is 0.3-1.0 wt% of the weight of caprolactam, the weight ratio of the ascorbic acid and the soluble silver salt is 1.2-1.5:1, the weight ratio of the soluble silver salt and the ammonia is 1-3:1. The nylon 6 / Ag composite resin material provided by the invention not only maintains the mechanical property of the original nylon 6, but also has excellent antibacterial property and permanent antimicrobial property. The preparation method provided by the invention has the advantages of simple process, short preparation period, low cost, and no pollution, and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a nylon 6-based composite resin and a preparation method thereof. Background technique [0002] In recent years, antibacterial materials prepared by adding an appropriate amount of antibacterial agents to polymer materials have attracted widespread attention in the industry. Patent (Application No. 02110160.4) "A Method for Manufacturing Antibacterial Fiber Containing Nanoparticles" discloses a method of adding nanoparticles as an antibacterial and bactericide in the solution spinning process to prepare antibacterial fibers. Patent (Application No. 101705527) "Antibacterial and Antistatic Multifunctional Nylon 6 Fiber and Its Preparation and Application" discloses a method of blending and granulating silver-based nano-inorganic metal oxides with dispersants and nylon 6 slices after surface modification. spinning method. However, the above methods all use nanoparticles to be added to the polymer matrix for blending. It is diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/16C08K3/08B22F9/24
Inventor 蒋翀石远昌
Owner 上海仕天工程塑料有限公司
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