AMS Spring 2023

Bamboo Shows Itself to be a Promising 3D Printing Material

6K SmarTech

Share this Article

[Image: Danita Delamont/Gallo Images/Getty Images]

In a paper entitled “Preparation and Properties of Polypropylene Composites Reinforced by Modified Phyllostachys pubescens Fibers,” a group of researchers explores the use of bamboo as an extruded material. Bamboo is a sustainable, biodegradable material, and while it has been incorporated into filament before, there hasn’t been a great deal of scientific research published about its use as a 3D printing material. In the study, the researchers used polypropylene (PP) as the matrix and bamboo as the reinforcing material.

Infrared spectra of modified and unmodified bamboo fibers

In addition to its sustainable properties, bamboo also has better strength, toughness and hardness than wood. The researchers created a compound material with PP and bamboo by heating and plasticizing via an extruder, and then created composite parts using extrusion and injection molding.

“The modification of bamboo fiber by microorganisms, or the modification of fiber surface by bamboo fiber through maleic anhydride grafting, silane coupling, etc. is intended to improve the compatibility of fiber with plastic matrix,” the researchers state. “Add inorganic micro-nanoparticles or add binder to modify the mechanical properties of the material.”

The bamboo powder was dried and mixed with an aluminate coupling agent and a compatibilizer, and combined with the polypropylene matrix. The materials were mixed at high speed and then plasticized and granulated using a twin-screw extruder. The particles were then injection molded to prepare splines, and the mechanical properties of the parts were tested. The chemical structure of the material was analyzed by Fourier transform infrared spectroscopy, and the microscopic morphology of bamboo fiber and bamboo-plastic composites was observed by scanning electron microscopy. The bamboo powder and brittle broken bamboo plastic spline sections were observed after gold injection.

Scanning electron microscope of bamboo powder fiber (a) and composites containing 7 wt% bamboo powder (b)

The melt flow rate of the material was measured, as well as the Vicat softening point of the composite material. An impact strength test and a tensile strength test were carried out on the molded parts.

“It can be seen that the melt index of the composite decreases with the increase of bamboo-plastic ratio,” the researchers state. “It indicates that the addition of bamboo powder hinders the sliding between the PP molecular chains, and the greater the bamboo powder content, the worse the fluidity.”

They also found, however, that bamboo powder can increase the heat resistance of the composite. The impact strength also increases with an increase in bamboo powder, although the tensile strength was slightly decreased.

Overall, bamboo shows a great deal of promise when combined with a material like polypropylene. Because of its heat resistance, hardness, toughness and impact strength, it has the potential to be used as a valuable part of many 3D printing applications – not to mention that it produces an attractive wood-like finish. There is a great need for more sustainable 3D printing materials, and bamboo is one solution.

Authors of the paper include Pan Ting, Heguo Wen, Licheng Huang, Zhongtong Sheng, Hu Yongjun and Yin Guomin.

Discuss this and other 3D printing topics at 3DPrintBoard.com or share your thoughts below. 

 

Share this Article


Recent News

BMW Begins Production of Hydrogen-Powered iX5 Vehicle with 3D Printed Parts

3D Printing News Unpeeled: BMW, Copper Rockets and Florida Homes



Categories

3D Design

3D Printed Art

3D Printed Food

3D Printed Guns


You May Also Like

Featured

Ursa Major and EOS to Disrupt Space Production with 3D Printed Copper

“Let’s build some engines!” That’s essentially what Ursa Major is doing. Based in Colorado, this space technology business is racing to improve humanity’s quest to explore the universe – several...

Featured

Desktop Metal Receives $9M 3D Printer Order from German Car Maker

Original equipment manufacturer (OEM) Desktop Metal (NYSE: DM) announced that the company has received a $9 million order from a “large German car manufacturer.” Although it is not clear which...

How Can 3D Printing Alleviate the Construction Industry’s Social, Climate, and Environmental Challenges?

Global housing shortages, a lack of skilled workers, and the need to reach carbon neutrality by 2050—the construction industry faces a tripled-edged sword. Industry leaders must use their experience to...

Borneo Gets its First 3D Printed House

Borneo, one of the most beautiful regions on earth, just added something it had not had previously: a 3D printed house. The new home was built by Sarawak Consolidated Industries...