벌집 적용을 위한 폴리프로필렌/밀납 복합재의 FDM 방식 3D 프린팅 연구 (FDM-typed Additive Manufacturing and Optimization of Polypropylene/Beeswax Composites for Beehive Application)

서지정보

· 발행기관 : 한국양봉학회
· 수록지 정보 : Journal of Apiculture / 38권 / 3호 / 297 ~ 306페이지
· 저자명 : 박진원, 김종희, 조용석, 조유영, 이승구

초록

Polypropylene (PP) polymer compounds were formulated to fabricate reusable beehives with inexpensive material using 3D printing technology. To improve honeybee affinity to plastic comb foundation, bee-friendly materials must be mixed with PP polymer, which correspond to beeswax, talc, woodflour and compatibilizer. The compounds were extruded with 1.75 mm thickness for 3D filaments. The composite materials were observed through SEM to assess the morphology of additives and fillers. The mechanical and thermal properties of the composite were measured using UTM and DSC, respectively and their crystallinity was evaluated by XRD. The crystallinity of the PP polymer was reduced by the addition of beeswax.
It was found that the 3D printing compatibility of PP compound increased due to the lowered crystallinity by adding beeswax. Therefore, the optimization of printing condition has to be considered for PP’s shrinkage behavior due to its crystallinity. The PP compounds were printed with 3 different compositions to evaluate dimensional accuracy, deformation rate and warpindex.
The shrinkage of PP compound was significantly reduced with the addition of beeswax and compatibilizer. The printing variables were set as nozzle temperature, bed temperature and printing speed. The manufactured honeycomb foundation will be field-tested to examine whether bees can build a nest with good affinity.

영어초록

Polypropylene (PP) polymer compounds were formulated to fabricate reusable beehives with inexpensive material using 3D printing technology. To improve honeybee affinity to plastic comb foundation, bee-friendly materials must be mixed with PP polymer, which correspond to beeswax, talc, woodflour and compatibilizer. The compounds were extruded with 1.75 mm thickness for 3D filaments. The composite materials were observed through SEM to assess the morphology of additives and fillers. The mechanical and thermal properties of the composite were measured using UTM and DSC, respectively and their crystallinity was evaluated by XRD. The crystallinity of the PP polymer was reduced by the addition of beeswax.
It was found that the 3D printing compatibility of PP compound increased due to the lowered crystallinity by adding beeswax. Therefore, the optimization of printing condition has to be considered for PP’s shrinkage behavior due to its crystallinity. The PP compounds were printed with 3 different compositions to evaluate dimensional accuracy, deformation rate and warpindex.
The shrinkage of PP compound was significantly reduced with the addition of beeswax and compatibilizer. The printing variables were set as nozzle temperature, bed temperature and printing speed. The manufactured honeycomb foundation will be field-tested to examine whether bees can build a nest with good affinity.

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