260915 KOMSA AI어선안전설계데이터플랫폼 6화 진수식 송출용

Scientific concepts / nature & environmental phenomena

• FRP (Fiberglass Reinforced Plastic) as a ship material

  • Widely used in Korea’s fishing vessels due to being lightweight and strong, and relatively inexpensive/easy to build with.

• Microplastics generated during FRP processing

  • Microplastic dust is produced during drying/construction, posing marine pollution risks.
  • Recycling/repurposing FRP is not feasible after damage or decommissioning, leading to abandoned vessels at sea and continued ocean pollution.

• Operational/engineering consequences of FRP hull properties

  • As fishing continues, gear and equipment accumulate, increasing vessel weight.
  • FRP hulls cannot withstand the added weight well → increasing hull heaviness, reducing fuel efficiency and speed.

• HDPE (High-Density Polyethylene) as an alternative

  • Proposed to address FRP drawbacks and improve marine suitability.
  • Claims include:
    • Recyclability (100%) upon disposal
    • Mechanical performance: strong, flexible, shock absorption, break resistance
    • Durability: UV resistance and resistance to abrasion/brush contact
    • Health/environment benefits during fabrication: welding can avoid ash gases/dust during assembly (as described)
    • Buoyancy characteristics: higher specific gravity than water is stated, along with good buoyancy and shallow draft
    • Biofouling/maintenance: attached marine organisms can be removed more easily → lower maintenance cost

Methods / process described (outlined)

• HDPE ship construction via welding

  • Unlike FRP fabrication, HDPE joining relies on welding (melting materials with heat to fuse).
  • Weld integrity depends on matching temperature, speed, and angle; mismatches can weaken the welded joint.

• Creation of standards and legal basis for HDPE hulls

  • Because domestic structural standards for HDPE fishing vessels did not exist, a research institute:
    • Developed the nation’s first provisional structural standards for HDPE hulls
    • Established a legal basis after approval from the Ministry of Oceans and Fisheries

• Training program to build HDPE welding capability

  • Theoretical training
    • How to design fishing vessels using HDP
    • HDP/other plastic properties
    • Welding procedures for safe welding
  • Practical hands-on training
    • Welding practice using welding equipment at an industrial complex

• Infrastructure expansion for wider technology transfer

  • Expanded education centers beyond the Mokpo/Jeonnam region center to Incheon
  • Continued technology transfer and “age-resilience training”
  • Goal: increase the number of skilled technicians

Researchers / sources featured (as named in the subtitles)

• Ministry of Oceans and Fisheries

  • Approved the legal basis for HDP vessel construction.

• Individual researcher names

  • No individual researchers’ names are provided in the provided subtitles excerpt.