FABRICATION OF HYBRID COMPOSITES BASED ON GLASS FIBER â RAMIE / NATURAL RUBBER AS A BULLETPROOF PANEL IN PATROL BOAT MODULAR ARMOR SYSTEMS
Protection of patrol boats from bullet threats can be increased by adding bullet-proof panels to the ship's interior. These panels are generally made using glass fiber/epoxy composite. These bullet-proof panels' performance can be improved, particularly in term of energy absorption by s...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/52112 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Protection of patrol boats from bullet threats can be increased by adding bullet-proof
panels to the ship's interior. These panels are generally made using glass fiber/epoxy
composite. These bullet-proof panels' performance can be improved, particularly in
term of energy absorption by selecting the reinforcement and matrix. In this study, a
bullet-proof composite for patrol boat protection was made by optimizing the type of
reinforcement and the matrix. Optimization of the reinforcement was carried out using
two types of fiber: ramie and glass fiber. The purpose of using ramie is to achieve the
same ballistic performance but using renewable source in Indonesia. Like other
natural fibers, ramie's performance is largely determined by its composition, especially
the cellulose. To increase the cellulose content in ramie, it was given alkaline treatment
using 5% NaOH solution, and the fabric construction was tested to see the effect of
alkalization on ramie fabric.
Furthermore, the optimization of the matrix aims to increase the damping value. In
order to get the best matrix performance, several parameters were varied. First, the
type of natural rubber used, namely Standard Indonesian Rubber (SIR 10) and Ribbed
Smoke Sheet (RSS1). Second, rubber vulcanization system, a conventional, semiefficient,
and efficient system formed by varying the number of parts per hundred
rubber (phr) of the accelerator. And third, the number of phr carbon black with 0, 10,
20, and 30 phr. These variations were tested for rheology using a rheometer and the
mechanical properties such as tensile strength based on ASTM D412, tear strength
based on ASTM D624, hardness based on ASTM D2240, and rebound resilience ISO
4662. |
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