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A kind of PBS/PHB material for 3D printing and preparation method thereof

A 3D printing and wire technology, applied in the direction of additive processing, etc., can solve the problems of high pressure and vacuum requirements, poor mechanical properties, application restrictions, etc., and achieve the effect of high product quality and excellent performance

Active Publication Date: 2017-11-28
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are currently no products using PBS as a 3D printing material in the domestic and foreign markets.
[0005] In the synthesis process of polybutylene succinate (PBS), due to the high requirements on pressure and vacuum, it is difficult to prepare high-molecular-weight PBS through direct synthesis, and its mechanical properties are poor, resulting in certain restrictions on its application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. A PBS / PHB material for 3D printing, characterized in that:

[0032] (1) formula according to weight percentage:

[0033] PBS 78.4

[0034] PHB 19.6

[0035] Toluene diisocyanate 0.2

[0036] Dicumyl peroxide 0.5

[0037] Calcium carbonate 0.3

[0038] Antioxidant 1010 0.5

[0039] Stearic acid 0.5.

[0040] (2) Preparation method:

[0041] A. Dry PBS and PHB in a vacuum oven at 80°C and 90°C for 8 hours respectively;

[0042] B. According to the formula in step (1), weigh the dried PBS, PHB, toluene diisocyanate, dicumyl peroxide, calcium carbonate, antioxidant 1010, and stearic acid;

[0043] C. Place the weighed components in a high-speed kneader, keep the speed at 1000 rpm / min, and stir at high speed for 8 minutes;

[0044] D. Add uniformly mixed PBS, PHB, toluene diisocyanate, dicumyl peroxide, calcium carbonate, antioxidant 1010, and stearic acid to the feeding port of the single-screw extruder. The parameters of the single-screw extruder are: The firs...

Embodiment 2

[0050] 1. A PBS / PHB material for 3D printing, characterized in that:

[0051] (1) formula according to weight percentage:

[0052] PBS 78.4

[0053] PHB 19.6

[0054] Isophorone diisocyanate 0.3

[0055] Trihydroxymethylpropane trimethacrylate 0.5

[0056]Montmorillonite 0.4

[0057] Antioxidant 168 0.5

[0058] Paraffin oil 0.3.

[0059] (2) Preparation method:

[0060] A. Dry PBS and PHB in a vacuum oven at 80°C and 90°C for 8 hours respectively;

[0061] B. According to the formula in step (1), weigh the dried PBS, PHB, isophorone diisocyanate, trihydroxymethylpropane trimethacrylate, montmorillonite, antioxidant 168, and paraffin oil;

[0062] C. Place the weighed components in a high-speed kneader, keep the speed at 1200 rpm / min, and stir at high speed for 10 minutes;

[0063] D. Add uniformly mixed PBS, PHB, isophorone diisocyanate, trihydroxymethylpropane trimethacrylate, montmorillonite, antioxidant 168, and paraffin oil to the feeding port of the twin-screw e...

Embodiment 3

[0069] 1. A PBS / PHB material for 3D printing, characterized in that:

[0070] (1) formula according to weight percentage:

[0071] PBS 68.6

[0072] PHB 29.4

[0073] Hexamethylene diisocyanate 0.2

[0074] Dicumyl peroxide 0.5

[0075] Calcium carbonate 0.3

[0076] Antioxidant 1010 0.5

[0077] Stearic acid 0.5.

[0078] (2) Preparation method:

[0079] A. Dry PBS and PHB in a vacuum oven at 80°C and 90°C for 8 hours respectively;

[0080] B. According to the formula in step (1), weigh the dried PBS, PHB, hexamethylene diisocyanate, dicumyl peroxide, calcium carbonate, antioxidant 1010, and stearic acid;

[0081] C. Place the weighed components in a high-speed kneader, keep the speed at 1000 rpm / min, and stir at high speed for 8 minutes;

[0082] D. Add uniformly mixed PBS, PHB, hexamethylene diisocyanate, dicumyl peroxide, calcium carbonate, antioxidant 1010, and stearic acid to the feed port of the single-screw extruder, and the single-screw extruder The paramete...

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Abstract

The invention discloses a PBS / PHB material for 3D printing and a preparation method thereof. The technical scheme of the invention is as follows: 1. According to the weight percentage, the formula is PBS 50-90, PHB 5-45, chain extender 0.1-1, Crosslinking agent 0.1-1, nucleating agent 0.1-2, antioxidant 0.2-0.5, lubricant 0.2-3. 2. The preparation method is: (1) drying; (2) weighing; (3) high-speed kneading; (4) Melt extrusion; (5) Cooling traction; (6) Coiling. The present invention adopts two kinds of fully degradable biological materials polybutylene succinate (PBS) and polybutylene succinate (PBS) to prepare the polymer material suitable for 3D printing, and traditional polylactic acid (PLA) Compared with wire, it has a lower printing temperature, better flexibility and strength, and enriches the variety of 3D printing polymer materials.

Description

technical field [0001] The invention belongs to a PBS / PHB material for 3D printing and a preparation method thereof. Background technique [0002] 3D printing technology, that is, additive manufacturing technology, is an emerging rapid prototyping technology. It is a technology based on digital model files, using bondable materials such as powdered metal or plastic, to construct objects by layer-by-layer printing, without the need for mold manufacturing, saving the time and cost of mold manufacturing . The basic principle is additive manufacturing, the technique of adding material layer by layer to generate a three-dimensional solid. As the core technology to promote the revolution of the tertiary industry, 3D printing has the characteristics of networking, digitization, and personalization, and it is gradually used in medicine, bioengineering, construction, clothing, aviation and other fields. [0003] Fused extrusion deposition molding technology (FDM) is generally prin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L67/04C08K13/02C08K5/3492C08K5/14C08K3/26C08K5/134C08K5/09C08K3/34C08K5/526B33Y70/00
Inventor 陈庆华郑赟许玉羡钱庆荣叶海华夏新曙
Owner FUJIAN NORMAL UNIV