As Vietnam seeks to reinforce its capability to develop, function and utilise Earth commentary satellites and satellite tv for pc constellations, materials science has emerged as a crucial enabler. A rising development in the sector is the alternative of conventional aluminium alloys with carbon fibre-reinforced polymer (CFRP) composites. These materials are considerably lighter whereas sustaining excessive power and stiffness, and so they permit a versatile design tailor-made to particular technical necessities. They are perfect for making protecting enclosures for delicate satellite tv for pc electronics that endure intense vibrations throughout launch.
However, a key limitation is the epoxy resin used to bind composite layers, which tends to be brittle and vulnerable to cracking below dynamic masses. Addressing this problem, Dr To Anh Duc and his analysis staff on the Vietnam National Space Centre below the Vietnam Academy of Science and Technology have accomplished a challenge to develop and check CFRP materials enhanced with carbon nanomaterials (CNMs) for satellite tv for pc part enclosures. The analysis was performed from January 2024 to December 2025.
Rather than redesigning the complete materials system, the staff targeted on enhancing the epoxy resin by incorporating carbon nanotubes – ultra-strong materials that, if not correctly handled, are inclined to agglomerate and scale back efficiency. By chemically modifying the nanotubes with useful teams, the researchers achieved uniform dispersion inside the resin. This microscopic adjustment considerably improved structural stability, enabling extra even stress distribution and lowering the chance of cracking.
Building on this basis, the staff developed an entire manufacturing course of, from nano-dispersion and strengthened resin fabrication to integration with carbon fibres. They efficiently manufactured a prototype satellite tv for pc part enclosure and performed vibration exams simulating launch circumstances.
The outcomes demonstrated clear enhancements. When untreated nanotubes have been used, materials properties confirmed little enhancement on account of clustering. In distinction, handled nanotubes, notably at an optimum focus of round 0.2%, achieved an efficient steadiness between power and adaptability, enhancing each load-bearing capability and deformation tolerance.
The ensuing enclosure weighs roughly 65 grams – about 70% of the load of an aluminium equal – whereas sustaining required stiffness and structural integrity. Vibration testing confirmed minimal deviation inside internationally accepted limits, confirming the fabric’s reliability for potential real-world functions.
On a mass-equivalent foundation, the composite materials outperforms aluminium in load-bearing effectivity and stiffness, particularly below main vibration instructions. This highlights a key benefit for contemporary satellite tv for pc design, the place weight discount and efficiency optimisation are crucial.
According to Dr Le Xuan Huy, Vice Director General of the Vietnam National Space Centre, such utilized analysis performs a vital function in constructing technological capability. He emphasised that self-reliance in the space sector is achieved incrementally, by mastering particular person parts and processes.
While additional testing and validation are required earlier than full deployment, the analysis marks a promising step ahead. It offers helpful knowledge, expertise, and human sources growth, supporting Vietnam’s broader ambition to realize larger autonomy in space technology./.