Starting from a simple gaming hobby, Aristio Kevin Ardyaneira
Pratama (16) students of class XI and M. Iqbal Fauzi (15), a student of class
XI MIA 5 SMAN 3 Semarang, Central Java managed to turn coconut husks into
bulletproof vests that are environmentally friendly.
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| Aristio Ardyaneira Kevin Pratt and M. Iqbal Fauzi class XI student of SMAN 3 Semarang MIA 5 Central show Stab-resistant and Ballistic Vest Made from Coconut Fiber his Work foto : VIVAnews/Dwi Royanto |
Results creativity named Stab-resistant and Ballistic Vest Made
from Coconut Fiber has even been included in various prestigious event as the
event 2nd International Science Project Olympiad (ISPrO) 2014 in Jakarta and
obtained a silver medal. Later in the event Appropriate Technology in Hyderabad also won
the champion two.
Made From Coconut Fiber
Both gifted students at SMA 3 that has done research for
repeatedly for six months, several unsuccessful attempts to finally make the
vests bulletproof vests are of good quality. Material selection coir, coconut
chosen because it is considered to have a strong texture withstand various blow
from the outside.
"The fibers we use as the current pulled surprisingly
strong," said Kevin in SMA 3 Semarang, Wednesday, December 10, 2014.
In the first phase of the experiment had failed, because the
antique vest made from the husks still be penetrated bullet. At that time they
still choose fiber, coconut fiber, and a zinc plate on the first try.
"In the past there zinc her, now it is no use. We also never
try to use fabric jeans but instead of heavy," said Kevin who tells that
the research did for six months.
Had failed in four attempts. But the spirit of the nation was not
broke. The result is positive. Fifth and sixth experiments they succeeded.
Bullets TNI / Polri of pistol-caliber M-1911 12:45 inches leveled with a
distance of 3 meters turned out to be bounced.
"The test was successful, after the bullet mental and other
advantages, this vest can not be penetrated by sharp items," he said.
Increasingly their findings had been progressing rapidly. From the
first prototype has a 2.5 centimeters thick and weighs 6 kilograms, currently
bulletproof layer of coconut husk was only 1.35 centimeters thick and weighs 3
kilograms to two plates at the front and back of the vest.
Unmitigated, the smart kid that always cooperated with the
military, police, and preparing to perform each test the magic bulletproof
vests. They hope the findings, can be developed and can withstand more severe
type of bullet. so forward, their products can be used military and police.
For the cost of making slab vest itself, he said, quite cheap and
can be made in a short time. They only need Rp800 thousand in obtaining any
desired material.
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