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CuO microsphere and antibacterial PPSU composite material and preparation method thereof

A composite material and microsphere technology, applied in copper oxide/copper hydroxide and other directions, can solve the problems of no antibacterial properties and limited application

Pending Publication Date: 2022-07-12
HAIKE GRP RES INST OF INNOVATION & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although PPSU has high performance and stability, it does not have antibacterial properties, which limits its application in some higher demand fields

Method used

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  • CuO microsphere and antibacterial PPSU composite material and preparation method thereof
  • CuO microsphere and antibacterial PPSU composite material and preparation method thereof

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preparation example Construction

[0041] The present invention also provides a preparation method of the above-mentioned antibacterial PPSU composite material, comprising the following steps:

[0042] 1) mixing PPSU, antibacterial agent and antioxidant to obtain a mixture;

[0043] 2) The mixture is extruded and granulated to obtain an antibacterial PPSU composite material.

[0044] In the present invention, the extrusion granulation is preferably carried out in a twin-screw extruder. The twin-screw extruder preferably adopts six temperature zones arranged in sequence during extrusion and granulation, which are respectively: the temperature of the first zone is 290-330°C, the temperature of the second zone is 310-350°C, and the temperature of the third zone is 310°C. ~350℃, the temperature of the fourth zone is 310~350℃, the temperature of the fifth zone is 310~350℃, the temperature of the sixth zone is 310~350℃; the temperature of the head of the twin-screw extruder is 310~350℃, and the screw speed is 200~28...

Embodiment 1

[0049] (1) take by weighing 80 parts of PPSU, 2 parts of antibacterial agent M1, 0.2 part of antioxidant 9960 and mix and stir to obtain mixture;

[0050] (2) Extruding and granulating the mixture obtained in step (1) from an extruder to obtain PPSU composite material P1.

[0051] The twin-screw extruder includes six temperature zones arranged in sequence, the temperature of the first zone is 290°C, the temperature of the second zone is 320°C, the temperature of the third zone is 330°C, the temperature of the fourth zone is 330°C, the temperature of the fifth zone is 330°C, and the temperature of the sixth zone is 330°C. 330℃, head temperature 330℃, screw speed 230r / min.

[0052] Wherein the antibacterial agent M1 adopts the following steps to prepare:

[0053] (1) Weigh 300g of copper nitrate, 1.2kg of deionized water, 100g of sodium hydroxide, 200g of ammonia water, and 200g of gas-phase titanium dioxide, add them to a reaction vessel, and react at 50°C for 10h to obtain mi...

Embodiment 2

[0058] (1) take by weighing 90 parts of PPSU, 3 parts of antibacterial agent M2, 0.1 part of antioxidant 1098, 0.2 part of antioxidant 9228, 0.2 part of antioxidant 1330 and mix and stir to obtain a mixture;

[0059] (2) Extruding and granulating the mixture obtained in step (1) from an extruder to obtain PPSU composite material P2.

[0060] The twin-screw extruder includes six temperature zones arranged in sequence, the temperature of the first zone is 310°C, the temperature of the second zone is 330°C, the temperature of the third zone is 330°C, the temperature of the fourth zone is 330°C, the temperature of the fifth zone is 330°C, and the temperature of the sixth zone is 330°C. 330℃, head temperature 330℃, screw speed 240r / min.

[0061] Wherein the antibacterial agent M2 is prepared by the following steps:

[0062] (1) Weigh 350g copper nitrate, 1.4kg deionized water, 130g sodium hydroxide, 220g ammonia water, 250g gas phase titanium dioxide, add them to the reaction vess...

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Abstract

The invention provides a CuO microsphere and antibacterial PPSU composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The CuO microspheres are prepared by the following steps: 1) mixing copper nitrate, water, sodium hydroxide, ammonia water and gas phase method titanium dioxide, and reacting to obtain a mixed solution A; 2) reacting the mixed solution A with sodium chloride to obtain CuCl2 / TiO2; (3) mixing sodium persulfate, sodium hydroxide, CuCl2 / TiO2 and water, and reacting to obtain CuO / TiO2; and 4) mixing the CuO / TiO2 with a sodium hydroxide solution to obtain the CuO microspheres. The CuO microspheres prepared by the method have a good antibacterial effect, and can achieve a good antibacterial effect after being added into a PPSU composite material.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a CuO microsphere and an antibacterial PPSU composite material and a preparation method thereof. Background technique [0002] Polyphenylene sulfone (PPSU) is an amorphous thermoplastic with high transparency and high hydrolytic stability. PPSU has excellent heat resistance, and the heat resistance temperature is as high as 207 °C. The product can withstand repeated steam sterilization, and can withstand the cleaning of general medicine and detergent without chemical changes. It is often used to make high-end milk bottles, coffee pots, and lunch boxes. Wait. With the improvement of people's living standards and the concern for a healthy and hygienic living environment, the demand for antibacterial materials is also increasing, and antibacterial materials have been widely used in many fields such as home appliances, building materials, environmental protecti...

Claims

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Application Information

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IPC IPC(8): C08L81/06C08K7/18C01G3/02
CPCC08K7/18C01G3/02C01P2004/32C08L81/06
Inventor 王俊林兴旺赵立伟宋鑫朱提允
Owner HAIKE GRP RES INST OF INNOVATION & TECH