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High-gloss antibacterial PLA material for 3D printing and preparation method of high-gloss antibacterial PLA material

A 3D printing, high-gloss technology, applied in the field of polyolefin materials, can solve the problems of unfavorable PLA environment, high cost of antibacterial agents, complex processing raw materials, etc., to achieve the effect of improving diversified performance, improving gloss, and simple preparation process

Pending Publication Date: 2022-03-04
NORTH HUAJIN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN1113354931B and CN110016214B disclose a kind of preparation method of PLA modified material, announced a kind of PLA modified material with excellent performance, but did not solve the multi-faceted needs of customers when actually using in the field of application
[0005] CN112961481A discloses a high-gloss PLA material, but there are more than 10 types of additives added, resulting in complex processing raw materials and high processing costs, which is not conducive to the principle of environmental friendliness of PLA
Generally, the cost of antibacterial agents that are environmentally friendly and harmless to the human body is high, so it is necessary to choose a reasonable ratio

Method used

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  • High-gloss antibacterial PLA material for 3D printing and preparation method of high-gloss antibacterial PLA material
  • High-gloss antibacterial PLA material for 3D printing and preparation method of high-gloss antibacterial PLA material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A high-gloss antibacterial PLA material for 3D printing and a preparation method thereof, comprising the following components by weight:

[0037] 100 parts of PLA resin base material, 3 parts of compatibilizer, 0.05 part of antioxidant, 0 part of antibacterial agent, 0 part of brightener

[0038] Dry the PLA resin base first, and expose it to the air for more than 1 hour, or dry it in an oven at 80°C for 30 minutes.

[0039] Put the base material and modifier into a high-speed mixing box and mix for 10 minutes.

[0040] Cylinder temperature: barrel zone 185°C, screw zone 210°C, die head zone 200°C.

[0041] The current of the twin-screw host of the extruder is controlled at 8A.

[0042] The homogeneously mixed raw materials are heated by an extruder, extruded, pelletized, and dried to obtain 3D printing materials.

Embodiment 2

[0044] 100 parts of PLA resin base material, 3 parts of compatibilizer, 0.05 part of antioxidant, 0.1 part of antibacterial agent, 0.02 part of brightener;

Embodiment 3

[0046] 100 parts of PLA resin base material, 3 parts of compatibilizer, 0.05 part of antioxidant, 0.2 part of antibacterial agent, 0.04 part of brightener;

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Abstract

The invention belongs to the field of polyolefin materials, and particularly relates to a high-gloss antibacterial PLA material for 3D printing and a preparation method thereof.The high-gloss antibacterial PLA material is prepared from, by weight, 100 parts of a PLA resin base material, 1-8 parts of a compatilizer, 0.05-0.2 part of an antioxidant, 0.1-0.7 part of an antibacterial agent and 0.02-0.2 part of a brightener; according to the method, barium sulfate and a fluorescent whitening agent are mixed, barium sulfate has the effect of improving glossiness, and the fluorescent whitening agent is beneficial for converting part of invisible red light and purple light into visible light. Blending of the two components is suitable for increasing the glossiness of the product, and the product is low in price, simple in component and beneficial to processing.

Description

technical field [0001] The invention relates to the field of polyolefin materials, in particular to a high-gloss antibacterial PLA material for 3D printing and a preparation method thereof. Background technique [0002] At present, 3D printing has been widely used in automobile manufacturing, health care, aerospace and other fields. At present, several mature engineering materials are acrylonitrile-butadiene-styrene copolymer (ABS), polylactic acid (PLA), and polycarbonate (PC). Polylactic acid (PLA), also known as polylactide, is a bio-friendly material made from renewable plants (such as corn). It has excellent biodegradability and will not cause harm to the environment. Not easy to curl, deformation and other excellent features. [0003] Since PLA is a product extracted from grain raw materials, based on the principle of maximizing the utilization of resources in the country and even the world, PLA materials will tend to develop in the direction of reusability, high-end...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L15/00C08L23/16C08L5/08C08K3/30C08K3/22C08K5/13C08K5/00B33Y70/10
CPCC08L67/04B33Y70/10C08K2003/3045C08K2003/2241C08L15/00C08L23/16C08L5/08C08K3/30C08K3/22C08K5/13C08K5/0058
Inventor 王楠付传玉韩松涛韩军操孙钰淇庄松李秉荣刘忠全付莹张彬武振东暴博文孙洪伟郭俊巍
Owner NORTH HUAJIN CHEM IND CO LTD
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