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Degradable PHBV (poly hydroxyl butyrate valerate) base 3D (three-dimensional) printing consumable and preparation method thereof

A technology of 3D printing and consumables, applied in the field of 3D printing, can solve the problems of poor mechanical properties and solvent resistance, affecting the precision of printed products, and high crystallinity, and achieve the effect of improving dryness, avoiding precision and improving toughness

Active Publication Date: 2017-01-04
NANJING QUANKAI RES INST OF BIOMATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PHBV is brittle and hard at room temperature, extremely unstable in molten state, easy to decompose, high in crystallinity, poor in mechanical properties and solvent resistance; in addition, PHBV consumables are easily affected by humidity, which ultimately affects the accuracy of printed products

Method used

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  • Degradable PHBV (poly hydroxyl butyrate valerate) base 3D (three-dimensional) printing consumable and preparation method thereof
  • Degradable PHBV (poly hydroxyl butyrate valerate) base 3D (three-dimensional) printing consumable and preparation method thereof
  • Degradable PHBV (poly hydroxyl butyrate valerate) base 3D (three-dimensional) printing consumable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A PHBV-based degradable 3D printing consumables, comprising the following components by weight:

[0038]

[0039] The weight-average molecular weight of the PHBV plastic is 200,000, and the dispersion coefficient is 1.5.

[0040] Described starch is cornstarch.

[0041] The anticaking agent is sodium aluminosilicate.

[0042] The coupling agent is aluminate.

[0043] The plasticizer is glycerol.

[0044] A preparation method of PHBV-based degradable 3D printing consumables, comprising the steps of:

[0045] (1) Weigh the formula components

[0046] According to the formula of a PHBV-based degradable 3D printing consumable according to claim 1, the components are weighed respectively;

[0047] (2) Making modified starch

[0048] Mix starch, water, and anticaking agent, stir to form a slurry, and then dehydrate. Put the dehydrated starch into a centrifuge for oil powder separation, and then import the separated starch and coupling agent into a high-speed composit...

Embodiment 2

[0060] A PHBV-based degradable 3D printing consumables, comprising the following components by weight:

[0061]

[0062] The PHBV plastic has a weight average molecular weight of 500,000 and a dispersion coefficient of 3.

[0063] Described starch is wheat starch.

[0064] Described anticaking agent is or silicon dioxide.

[0065] The coupling agent is diisocyanate.

[0066] Described plasticizer is ethylene glycol.

[0067] A preparation method of PHBV-based degradable 3D printing consumables, comprising the steps of:

[0068] (1) Weigh the formula components

[0069] According to the formula of a PHBV-based degradable 3D printing consumable according to claim 1, the components are weighed respectively;

[0070] (2) Making modified starch

[0071] Mix starch, water, and anti-caking agent, stir to form a slurry, and then dehydrate. Put the dehydrated starch into a centrifuge for oil powder separation, and then import the separated starch and coupling agent into a high-s...

Embodiment 3

[0083] A PHBV-based degradable 3D printing consumable is characterized in that it comprises the following components in parts by weight:

[0084]

[0085] The weight average molecular weight of the PHBV plastic is 1 million, and the dispersion coefficient is 5.

[0086] Described starch is sweet potato starch.

[0087] The anticaking agent is sodium aluminosilicate.

[0088] The coupling agent is aluminate.

[0089] Described plasticizer is dioctyl phthalate.

[0090] A method for preparing PHBV-based degradable 3D printing consumables, characterized in that it comprises the steps of:

[0091] (1) Weigh the formula components

[0092] According to the formula of a PHBV-based degradable 3D printing consumable according to claim 1, the components are weighed respectively;

[0093] (2) Making modified starch

[0094] Mix starch, water, and anticaking agent, stir to form a slurry, and then dehydrate, put the dehydrated starch into a centrifuge for oil powder separation, a...

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Abstract

The invention discloses a degradable 3D (three-dimensional) PHBV (poly hydroxyl butyrate valerate) base printing consumable and a preparation method thereof, and belongs to the field of 3D printing. The consumable comprises, by weight, 60-90 parts of PHBV plastics, 5-9 parts of PLC (poly lactic acid) plastics, 40-60 parts of starch, 4-6 parts of toughening agents, 6-8 parts of lubrication degradation agents, 0.15-0.85 part of anti-tackiness agent, 10-12 parts of coupling agents and 3-8 parts of plasticizers. The preparation method includes the steps: weighing formulation components, drying and the like. The PHBV consumable can effectively improve toughness and stability of the PHBV consumable, softness and elasticity of the PHBV consumable are improved, the preparation method of the PHBV consumable can effectively improve dryness of the PHBV consumable, and the accuracy of a 3D printing finished product cannot be affected by influence of humidity on the PHBV consumable.

Description

technical field [0001] The invention relates to a PHBV-based degradable 3D printing consumable and a preparation method thereof, belonging to the field of 3D printing. Background technique [0002] 3D printing is a technology that uses bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing based on digital model files. After nearly 30 years of development, 3D printing technology is rapidly entering our production and life in recent years. 3D printing technology has gradually matured in the fields of automobiles, medical care, and toy models. [0003] At present, the widely used plastic 3D printing consumables mainly include ABS, PA, PLA, PVA, PHBV, etc. The raw material for the production of PBHV is corn, which is a biodegradable polymer material. It will surely make important contributions to reducing human dependence on petroleum resources, curbing white pollution, controlling the greenhouse effect, 3D printing, and sustainabl...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L3/02C08K13/02C08K3/34C08K5/10C08K5/053B33Y70/00
CPCB33Y70/00C08K2201/014C08L67/04C08L2201/06C08L2205/025C08L2205/03C08L3/02C08K13/02C08K3/34C08K5/10C08K5/053C08K3/36C08K5/29C08K5/12
Inventor 段月强
Owner NANJING QUANKAI RES INST OF BIOMATERIALS CO LTD
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