Bamboo particles as reinforcement in composite materials are prospective to be applied to particleboard products in the industry. This study aimed to synthesize bamboo particle reinforced polymer composites as a substitute for particleboard products, which still use wood as a raw material. The parameters of the composite synthesis process were varied with powder sizes of 50, 100, and 250 mesh, each mesh with volume fractions of 10, 20, and 30%, matrix types of polyester and polypropylene, Tali Bamboo, and Haur Hejo Bamboo as reinforcements. Characterization included tensile strength, flexural strength, and morphology. Particleboard products were tested based on JIS A 5908-2003, including density testing, moisture content, thickness expansion after immersion in water, flexural strength in dry and wet conditions, bending Young’s modulus, and wood screw holding power. The results showed that the maximum flexural and tensile strength values of 91.03 MPa and 30.85 MPa, respectively, were found in polymer composites reinforced with Tali bamboo with the particle size of 250 mesh and volume fraction 30%. Particleboard made of polypropylene and polyester reinforced Tali Bamboo with a particle size of 250 mesh and a volume fraction of 30% composites meets the JIS A 5908-2003 standard.

Bamboo fibers have been used for reinforcements in structural composites because of their environmental friendly properties. The purpose of this study was to investigate the characteristics of three types of bamboo, namely Tali bamboo, Gombong bamboo and Haur Hejo bamboo to meet the requirements for a reinforcement in structural composites. The three types of bamboo fibers were alkaline treated by varying the concentrations of NaOH (4% and 6%), and immersion times (1, 2, and 3 hours). The alkaline pre-treatment was conducted at the temperature of 120°C and the pressure of 0.5 MPa using a steam explosion method. The treated bamboo fibers were characterized by FTIR and measured their tensile strengths. The tensile test results showed that the tensile strengths of Tali, Gombong, and Haur Hejo bamboss were 710 MPa, 418 MPa, and 457 MPa respectively. Whereas, the FTIR analysis indicated that there was still a peak of lignin with small intensity marked by aromatic C = C (alkyne) at the wavelength of 1500-2600 cm⁻¹ for all types of bamboo. There was also a peak of cellulose with an increase in the intensity marked by the aromatic group C = H (alkene) at the wavelength of 1900-2400.

Natural fibers contained in bamboo are beneficial to renewable, biodegradable, abundant availability, and cheap which could be a potential substitute of synthetic materials. Tensile strength of this material is important requirements in various structural application. In this research, fiber fabrication process optimization of three types of local bamboo namely Gombong (Gigantochloapseudoarundinacea), HaurHejo (Bambusatuldoides), and Tali (Gigantochloa apus) was investigated. These fibers were processed by creating a variety of the NaOH concentrations of 4 % and 6 %, immersion times of 1, 2, and 3 hours, and immersion temperatures of 25 °C and 60 °C. The process parameters and its level variations of bamboo fiber fabrication were optimized using Taguchi method. Then the contribution of each process parameter was observed using the analysis of variance (ANOVA). From Taguchi method, the optimal parameter for highest tensile strength was obtained from Tali bamboo, indicated by 4 % NaOH, 2 hours immersion time, and 60 °C immersion temperature. Meanwhile, the ANOVA revealed that the contributions for each parameter are 70 % for bamboo type, 7 % for NaOH concentration, 4 % for immersion time, and 17 % for immersion temperature with error contribution of 2 %. By using these data, it could be concluded that bamboo type selection is a critical parameter to obtain bamboo with high tensile strength. While NaOH concentration, immersion time, and immersion temperature are not critical parameters which gave flexibility in the selection process. FTIR analysis was carried in order to observe chemical bonding in bamboos. The results of FTIR on the bamboo fibers were indicated Tali bamboo has larger lignin levels decreasing than HaurHejo and Gombong, this indicates in higher tensile strength for Tali bamboo fiber.

Transformasi digital di bidang industri membuat penguasaan desain berbantuan komputer semakin penting untuk dikenalkan sejak pendidikan menengah. Namun, kebutuhan siswa SMK dan SMA tidak sepenuhnya sama. Siswa SMK dari program keahlian yang relevan telah mengenal gambar teknik atau CAD sebagai bagian dari kompetensi kurikulum, sedangkan siswa SMA umumnya belum memperoleh praktik CAD secara khusus. Kegiatan pengabdian ini bertujuan memperkuat pengetahuan dan kemampuan praktik CAD siswa SMK sekaligus mengenalkan proses desain digital kepada siswa SMA melalui pelatihan Autodesk Inventor berbasis project-based learning. Kegiatan dilaksanakan pada 31 Januari 2026 di Laboratorium Komputer Fakultas Teknologi Manufaktur Universitas Jenderal Achmad Yani, Cimahi. Pelaksanaan meliputi pretest, demonstrasi, praktik terbimbing, proyek komponen mekanik sederhana, posttest, dan evaluasi kinerja. Rerata nilai siswa SMK meningkat dari 74,38 ± 4,17 menjadi 82,50 ± 4,63, dengan rata-rata peningkatan individual sebesar 11,21%. Rerata nilai siswa SMA meningkat dari 55,00 ± 5,00 menjadi 75,00 ± 5,00, dengan rata-rata peningkatan individual sebesar 36,87%. Siswa SMK menyelesaikan tugas dalam 30-45 menit, sedangkan siswa SMA dalam 60-90 menit. Seluruh peserta memperoleh nilai posttest yang lebih tinggi daripada nilai pretest. Pelatihan ini memperkuat kompetensi yang telah dikenal siswa SMK dan memberikan pengalaman awal CAD yang bermakna bagi siswa SMA. Perbedaan capaian dan waktu pengerjaan menunjukkan bahwa materi dan pendampingan perlu disesuaikan dengan latar belakang peserta., dan mendukung peningkatan nilai tambah UMKM.