Page 82 - Abstract book - TJSSF-2020

Thailand – Japan Student Science Fair 2020 (TJ-SSF 2020)
“Seeding Innovations through Fostering Thailand – Japan Youth Friendship”

The composite rubber flooring tile reinforced with natural fibers and
polyethylene

Krittaya Sukhampa , Suphatsron Churat
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Advisors: Patcharaporn Wichasan , Ukkadate Moonart
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Princess Chulaborn Science High school Mukdahan
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Abstract

The composite rubber tiles using natural cellulose fibers mixed with rubber and polyethylene. The
objective is to develop an appropriate ratio of rubber and cellulose to make tiles and compare the
mechanical efficiency of composite rubber tiles reinforced with natural cellulose fibers mixed with
natural rubber and polyethylene waste. By mixing rubber using RSS3 sheet and polyethylene at a ratio
of 80: 20 at a temperature of 170 degrees Celsius By using INTERAL MIXED: MX75 for 10 minutes
and mixed with 1.25, 2.5 and 5 gram of cellulose for 5 minutes, then mixed with a two-roller grinder
with stearic acid: ZnO: Mercaptobenzothiazole: Diphenylguanidine: Sulfur At a fixed ratio of 2: 3: 0.5:
0.2: 3 and then pressed by hot pressing at 150 degrees celsius for 3 minutes and 30 seconds. The rubber
sheet is 8 x 8 x 5.5 cm. Composite rubber tiles, RSS3 rubber and polyethylene which is reinforced with
natural cellulose fibers at a ratio of 5 is suitable for flooring due to the highest strength when tested in
accordance with ASTM D 2240ISO7619-1 when testing water absorption, it is found that the rubber
tile does not absorb water and when testing compressive strength according to ASTM D 395 Method
BIO815-1, it is found that the compressive strength can be supported the most. In the acid-base testing,
it is found that the weights did not change but the size of all rubber tiles have changed a little bit.
Therefore the fourth tile is suitable for making floor tiles.

Keywords: natural cellulose fibers, rubber, and polyethylene

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