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Long-acting antibacterial negative ion polypropylene material and preparation method thereof

A polypropylene material and negative ion technology, applied in the field of fiber materials, can solve the problems of poor heat resistance, low antibacterial efficiency, easy agglomeration, etc., and achieve the effect of enhancing mechanical properties and long-term antibacterial properties.

Inactive Publication Date: 2019-12-13
合肥科拜耳材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are various disadvantages, such as the introduction of Ag ions and their salt compounds as inorganic antibacterial agents, which are expensive, easy to agglomerate, and difficult to disperse, while organic antibacterial agents and natural antibacterial agents have low antibacterial efficiency and low heat resistance. Not good, it is difficult to get a broad-spectrum antibacterial effect, due to its own instability, and it is easy to fail during use

Method used

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  • Long-acting antibacterial negative ion polypropylene material and preparation method thereof
  • Long-acting antibacterial negative ion polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 75.8g of polypropylene, 12g of antibacterial agent filler, 10g of toughening agent vinyl elastomer (POE), antioxidant tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol Add 0.2g of ester and 0.3g of tris[2,4-di-tert-butylphenyl]phosphite, 1.3g of lubricant silicone powder, and 0.4g of coupling agent polypropylene grafted maleic anhydride to the high mixer Medium-dry mixing for 8 minutes, adding the uniformly mixed raw materials into a twin-screw extruder to melt, extrude and granulate to obtain a long-acting antibacterial anion polypropylene material;

[0026] Wherein the preparation process of antimicrobial filler is as follows:

[0027] 350g of 6-aminocaproic acid and 100g of L-hydroxyproline were added to a sufficient amount of deionized water and added to the flask; 1.05mL of 85% H 3 PO 3 Catalyze, and add 350g nano-ZnO / tourmaline material, wherein ZnO / tourmaline material in ZnO / tourmaline material=1:0.3; the above reaction solution is...

Embodiment 2

[0029] 88.6-67.0g of polypropylene, 15g of antibacterial agent filler, 9g of toughening agent ethylene propylene diene rubber (EPDM), antioxidant tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propylene Acid] pentaerythritol ester 0.3g and tris [2,4-di-tert-butylphenyl] phosphite 0.3g, lubricant calcium stearate 1.2g, coupling agent silane coupling agent 0.5g each component is added to high mixing Dry-mix in the machine for 6 minutes, put the evenly mixed raw materials into the twin-screw extruder to melt, extrude and granulate to obtain a long-acting antibacterial anion polypropylene material;

[0030] Wherein the preparation process of antimicrobial filler is as follows:

[0031] 320g of 6-aminocaproic acid and 100g of L-hydroxyproline were added to a sufficient amount of deionized water and added to the flask; 1.12mL of 84% H 3 PO 3 Catalyze, and add 384g nano-ZnO / tourmaline material, wherein ZnO / tourmaline material in ZnO / tourmaline material = 1:0.4; the above reaction ...

Embodiment 3

[0033] Polypropylene 88.6-67.0g, antibacterial filler 8g, styrene-butadiene elastomer (SBS) 4g and hydrogenated styrene-butadiene-styrene elastomer (SEBS) 7g, antioxidant tetrakis [β- (3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester 0.2g and tris[2,4-di-tert-butylphenyl]phosphite 0.6g, lubricant zinc stearate 1.4 g, coupling agent titanate coupling agent 0.3g each component is added to a high mixer and dry mixed for 7 minutes, and the uniformly mixed raw materials are added to a twin-screw extruder to melt, extrude and granulate to obtain a long-acting Antibacterial negative ion polypropylene material;

[0034] Wherein the preparation process of antimicrobial filler is as follows:

[0035] 380g of 6-aminocaproic acid and 100g of L-hydroxyproline were added to a sufficient amount of deionized water and added to the flask; 0.95mL of 85% H 3 PO 3 Catalyze, and add 304g nano-ZnO / tourmaline material, wherein ZnO in ZnO / tourmaline material: tourmaline=1:0.3; ...

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Abstract

The invention discloses a long-acting antibacterial negative ion polypropylene material and a preparation method thereof. The antibacterial polypropylene material is prepared from the following components in parts by weight: 88.6 to 67.0 parts of polypropylene, 3 to 18 parts of an antibacterial agent filler, 7 to 12 parts of a toughening agent, 0.4 to 0.9 part of an antioxidant, 1 to 1.5 parts ofa lubricant and 0.2 to 0.6 part of a coupling agent. The preparation method comprises the following steps: adding the components into a high-speed mixer, performing dry mixing for 5-10min, adding theuniformly mixed raw materials into a double-screw extruder, and performing melt extrusion granulation. The invention discloses that the hollow structure of hollow halloysite is utilized for a first time, an amino acid / ZnO / tourmaline nano composite material with excellent antibacterial performance is loaded to and exists in a hollow structure of halloysite through a self-assembly reaction at normaltemperature, so that the antibacterial material is protected in the use process and is not prone to precipitation and failure along with severe use environments such as moisture, heat and abrasion.

Description

technical field [0001] The invention relates to a long-acting antibacterial negative ion polypropylene material and a preparation method thereof, belonging to the field of fiber materials. Background technique [0002] As one of the most common general-purpose engineering plastics, polypropylene is widely used in automobiles, electronic appliances, daily consumables, and packaging materials due to its good mechanical properties, aging resistance, and low price. With the development of the plastic industry, plastic products have become an indispensable product in people's life and industrial production. However, when the objective conditions such as temperature and humidity are suitable, harmful microorganisms such as bacteria and mold will breed on plastic products, seriously endangering the human body. Human health, even life-threatening. According to statistical data, the number of people who die from bacterial infection in the world is close to 20 million every year, acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L23/16C08L53/02C08L83/04C08L51/06C08K13/06C08K9/10C08K3/22C08K3/38C08K5/17
CPCC08L23/12C08L2205/035C08L2205/06C08K2201/011C08K2003/2296C08K2003/387C08L23/0815C08L83/04C08L51/06C08K13/06C08K9/10C08K3/22C08K3/38C08K5/175C08L23/16C08L53/02C08L53/025
Inventor 姜之涛徐卫兵张宝陈婉君姜子未
Owner 合肥科拜耳材料科技有限公司
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