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Color master batch with natural antibacterial function and preparation process thereof

A natural antibacterial, color masterbatch technology, applied in the field of new materials, can solve the problems of pollution in the production process, high price, unable to withstand the high temperature of color masterbatch, etc., and achieve the effect of breaking through the high temperature resistance

Pending Publication Date: 2022-01-04
明新梅诺卡(江苏)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the type of antibacterial agent, it can be roughly divided into inorganic antibacterial masterbatch, organic antibacterial masterbatch and natural antibacterial masterbatch. The current antibacterial masterbatch is mostly concentrated in inorganic antibacterial masterbatch, such as silver element and silver ion, although The bactericidal effect is remarkable, but modern science has found that it will cause harm to the human body when it exceeds a certain amount, and its price is expensive; but there are also organic antibacterial agents such as dichlorovinyl salicylamide and thiazole mixtures, quaternary ammonium salts, and phenol. Toxicity, and there is contamination in the production process
Therefore, there is a need for a natural antibacterial masterbatch, but since the natural antibacterial substance cannot withstand the high temperature in the color masterbatch manufacturing process, a preparation method that can effectively combine the natural antibacterial substance and the color masterbatch is needed

Method used

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  • Color master batch with natural antibacterial function and preparation process thereof
  • Color master batch with natural antibacterial function and preparation process thereof
  • Color master batch with natural antibacterial function and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Select the resin carrier: the intrinsic viscosity is 1.306dL / g, the melting point is 167°C, and the particle size is 60 mesh PLA powder.

[0045]Preparation of natural antibacterial functional masterbatch: Add 67wt% PLA powder, 18wt% pigment, 10wt% mint antibacterial agent with a core-wall ratio of 1:5, 2wt% dispersant, and 3wt% lubricant to the temperature Stir in a high-speed mixer with a temperature of 20°C and a speed of 1500r / min for 90s to make the materials evenly mixed. The mixed materials are fed into the twin-screw extruder by quantitative weighing. 170°C, 175°C, 180°C, 190°C, 185°C, 180°C, 180°C, the material is melted, sheared and mixed, extruded through the die head of the extruder, the melt is cooled into a solid state through the water tank, and passed through the blower After drying, enter the granulator to cut into particles of the required size, and finally sieve in a 60-mesh vibrating screen and enter the silo to obtain natural antibacterial color mas...

Embodiment 2

[0047] Select resin carrier: PLA powder with intrinsic viscosity 1.306dL / g, melting point 167°C, particle size 60 mesh.

[0048] Preparation of natural antibacterial functional masterbatch: 67wt% PLA powder, 18wt% pigment and 10wt% honeysuckle antibacterial agent with a core-wall ratio of 1:5, 2wt% dispersant, and 3wt% lubricant were added to the temperature Stir in a high-speed mixer with a temperature of 20°C and a speed of 1600r / min for 90s to make the materials evenly mixed. The mixed materials are fed into the twin-screw extruder through quantitative weighing. 170°C, 175°C, 180°C, 190°C, 185°C, 180°C, 180°C, the material is melted, sheared and mixed, extruded through the die head of the extruder, the melt is cooled into a solid state through the water tank, and passed through the blower After drying, enter the granulator to cut into particles of the required size, and finally sieve in a 60-mesh vibrating screen and enter the silo to obtain natural antibacterial color mast...

Embodiment 3

[0050] Select resin carrier: water content 0.4%, ash content 0.07%, melt index 30g / 10min, melting point 261°C, particle size 100 mesh PET powder.

[0051] Preparation of natural antibacterial functional masterbatch: add 60wt% of PET powder, 15wt% of pigment and 20wt% of wormwood antibacterial agent with a core-wall ratio of 1:5, 2wt% of dispersant, and 3wt% of lubricant Stir in a high-speed mixer with a temperature of 20°C and a speed of 1600r / min for 60 seconds to mix the materials evenly. The mixture is quantitatively weighed and fed into the twin-screw extruder. The twin-screw temperature zones are set at 250°C, 255°C, and 260°C. . After being blown dry by a blower, it enters a granulator to cut into particles of the required size, and finally sieves in a 100-mesh vibrating sieve and enters the silo to obtain natural antibacterial color masterbatch finished products.

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Abstract

The invention provides a color master batch with a natural antibacterial function and a preparation process thereof. The color master batch is prepared from the following raw materials in percentage by weight: 52.2%-69.3% of a carrier, 0.8%-3.2% of a dispersing agent, 15%-45% of a coloring agent, 3%-15% of an auxiliary agent and 10%-25% of an antibacterial substance. The carrier is one of PET (polyethylene glycol terephthalate), PBT (polybutylene terephthalate), PLA (polylactic acid resin), PP (polypropylene resin), PA (polyamide resin) and PE (polyethylene resin); and the antibacterial substance is a natural antibacterial agent. The natural antibacterial agent used in the invention adopts a cyclodextrin embedding method, and can bear a certain high temperature, so that the antibacterial property of the natural antibacterial agent is not damaged due to too high temperature in the preparation process. The natural antibacterial color master batch disclosed by the invention belongs to a novel antibacterial color master batch, and is green, environment-friendly and excellent in antibacterial performance.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a color masterbatch with natural antibacterial function and a preparation process thereof. Background technique [0002] With the development of the times, masterbatches are not limited to color changes, and people give them more performance requirements, such as: aging resistance, heat radiation, flame retardant, matting, deodorization, antibacterial, etc. Among them, due to the damage caused by the epidemic to the world, the antibacterial function has attracted the most attention recently. Masterbatch is composed of three basic elements: pigment or dye, carrier and additive. Antibacterial masterbatch is to add one or concentrate antibacterial substances to make it have antibacterial function. There are many patents for color masterbatch in China, but they mainly focus on color changes, and there are few antibacterial aspects, especially natural antibacterial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L67/00C08L91/06C08L67/02C08L23/12C08L23/06C08K5/00C08K9/10
CPCC08L67/04C08L67/02C08L23/12C08L23/06C08L2201/08C08L67/00C08L91/06C08K5/0058C08K9/10C08K5/0041
Inventor 庄君新张永威申亚柯
Owner 明新梅诺卡(江苏)新材料有限公司
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