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Antibacterial reinforced nylon material and preparation method thereof

A technology of nylon and compound antibacterial agent, which is applied in the field of preparation of antibacterial reinforced nylon materials, which can solve the problems of short validity period, inability to use broad spectrum and long-term effect, and limited antibacterial effect of natural antibacterial agents

Active Publication Date: 2014-05-14
QIQIHAR NORTH KUN SYNTHETIC POLYMER MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, natural antibacterial agents have limited antibacterial effect, poor heat resistance, low bactericidal rate, cannot be used for broad-spectrum and long-term use, and are in small quantities
The safety of organic antibacterial agents is still under study. Generally speaking, organic antibacterial agents have poor heat resistance, are easily hydrolyzed, and have a short validity period.

Method used

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  • Antibacterial reinforced nylon material and preparation method thereof
  • Antibacterial reinforced nylon material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 1. Take by weighing 180 grams of Pr-Ag antibacterial white carbon black, 30 grams of nano-titanium dioxide, and 800 grams of nylon 66 raw material. %; use a mixer to mix the coupling agent and antibacterial agent first, then add other materials and mix evenly; carry out extrusion granulation at 220°C to 260°C and a speed of 250 to 400r / min to prepare antibacterial nylon masterbatch.

[0016] 2. Weigh 60 parts of nylon 66 plastic, 10 parts of alkali-free short glass fiber, 0.1 part of antioxidant, 0.1 part of lubricant, and 0.1 part of coupling agent. The material is extruded and granulated in a twin-screw extruder, the temperature of each section of the extruder is controlled at 220°C to 260°C, and the rotation speed is 250 to 400r / min to obtain reinforced nylon.

[0017] 3. Weigh the two materials according to the ratio of antibacterial nylon masterbatch (mass): reinforced nylon (mass) = 1:30; place the weighed two materials in a disperser and mix them evenly to obtain...

Embodiment 2

[0020] 1. Take by weighing 180 grams of Pr-Ag antibacterial white carbon black, 30 grams of nano-titanium dioxide, and 800 grams of nylon 66 plastics. The coupling agent is a silane coupling agent and a titanate coupling agent, and the addition is 0.5% of the weight of the antibacterial agent. %; use a mixer to mix the coupling agent and antibacterial agent first, then add other materials and mix evenly; extrude and granulate at 220°C to 260°C at a speed of 250 to 400r / min to prepare antibacterial nylon masterbatch.

[0021] 2. Weigh 80 parts of nylon 66 plastic, 25 parts of alkali-free short glass fiber, 0.3 part of antioxidant, 0.2 part of lubricant, and 0.3 part of coupling agent. Mix the above raw materials evenly with a mixer, and then extrude and granulate in a twin-screw extruder. The temperature of each section of the extruder is controlled at 220°C to 260°C, and the speed is 250 to 400r / min to obtain reinforced nylon.

[0022] 3. According to the ratio of antibacteria...

Embodiment 3

[0025] 1. Take by weighing 170 grams of Pr-Ag antibacterial white carbon black, 30 grams of nano-titanium dioxide, and 785 grams of nylon 66 plastics. The coupling agent is a silane coupling agent and a titanate coupling agent. %, use a disperser to mix the coupling agent and antibacterial agent first, then add other materials and disperse evenly; then extrude and granulate. Obtain antibacterial nylon masterbatch.

[0026] 2. Weigh 70 parts of nylon 66 plastic, 15 parts of alkali-free short glass fiber, 0.3 part of antioxidant, 0.2 part of lubricant, and 0.1 part of coupling agent. The extruder is extruded and granulated, and the temperature of each section of the extruder is controlled at 220°C to 260°C, and the rotation speed is 250 to 400r / min to obtain reinforced nylon.

[0027] 3. Weigh the two materials according to the ratio of antibacterial nylon masterbatch (mass): reinforced nylon plastic (mass) = 1:25, put the weighed two materials in a disperser and disperse evenl...

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Abstract

The invention discloses an antibacterial reinforced nylon material and a preparation method thereof. The antibacterial reinforced nylon material is characterized by being prepared by using a compound antibacterial agent formed by combining a rare earth silver system inorganic antibacterial agent and titanium dioxide as an antibacterial agent of antibacterial nylon master batch, and mixing with reinforced nylon. The weight ratio of two raw materials of the antibacterial nylon master batch to the reinforced nylon is 1:(10-35), wherein the antibacterial nylon master batch comprises a compound antibacterial agent and nylon, wherein the compound antibacterial agent accounts for 1-30 percent the total weight of the antibacterial nylon master batch, and the nylon accounts for 65-95 percent the weight of the compound antibacterial agent. The alkali-free short glass fiber in the reinforced nylon accounts for 30 percent. The preparation method comprises the three steps: preparing the antibacterial nylon master batch, preparing the reinforced nylon, and uniformly distributing the antibacterial nylon master batch in the prepared reinforced nylon. According to the preparation method, the strength of the nylon is ensured, and the antibacterial agent is uniformly distributed in the nylon, so that the antibacterial effect is more ideal, and the antibacterial reinforced nylon material is not easy to discolor, and has an antibacterial broad spectrum property.

Description

technical field [0001] The invention relates to an antibacterial enhanced nylon material, and also relates to a preparation method of the antibacterial enhanced nylon material. Background technique [0002] With the continuous development of polymer science, polymer materials and their products have been widely used in various fields of life. Due to daily life and work life, people will be exposed to a large number of bacteria and thus have a negative impact on people's health. Therefore, antibacterial products have emerged at the historic moment. High efficiency, no toxic side effects, and excellent antibacterial performance have become the goals people are constantly pursuing. Nylon, as a commonly used engineering plastic, has been used in construction, automobiles, electronics, packaging, and personal care. And textiles and other fields have been widely used. Therefore, the research and development of nylon products with antibacterial effect will significantly improve pe...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K13/06C08K9/12C08K9/04C08K9/06C08K3/08C08K3/36C08K3/22C08K7/14C08J3/22
CPCC08K2003/2241C08L77/06C08J3/226C08J2377/06C08J2477/06C08L2205/025C08K13/06C08K9/12C08K9/04C08K9/06C08K2003/0806C08K3/36C08K7/14
Inventor 杨秀英袁浩杰张德庆
Owner QIQIHAR NORTH KUN SYNTHETIC POLYMER MATERIALS
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