PENGARUH TINGKAT IRADIASI TERHADAP SIFAT FISIS DAN MEKANIS KAYU KARET YANG DIIMPREGNASI DENGAN POLIESTER STIREN
The effect of irradiation level i.e. two megarad (20 KGy), four megarad (40 KGy) and six megarad (60 KGy) pre impregnated with polyester styrene was investigated on rubber wood (Hevea brasiliensis Muell. Arg.). The samples were obtained from locally cultivated rubber trees at Jasinga subdis...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | Indonesian |
| Published: |
Forest Product Research and Development Center
2017-08-01
|
| Series: | Jurnal Penelitian Hasil Hutan (Journal of Forest Products Research) |
| Subjects: | |
| Online Access: | http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3134 |
| _version_ | 1818525799023640576 |
|---|---|
| author | Bakir Ginoga B Sipayung S Karnasudirdja Karnasudirdja Suyitno Suyitno |
| author_facet | Bakir Ginoga B Sipayung S Karnasudirdja Karnasudirdja Suyitno Suyitno |
| author_sort | Bakir Ginoga |
| collection | DOAJ |
| description | The effect of irradiation level i.e. two megarad (20 KGy), four megarad (40 KGy) and six megarad (60 KGy) pre impregnated with polyester styrene was investigated on rubber wood (Hevea brasiliensis Muell. Arg.). The samples were obtained from locally cultivated rubber trees at Jasinga subdistrict, Bogor, West Java. The treated wood properties tested include airdry density, hardness, compression parallel to the grain, compression perpendicular to the grain and impact bending strength, using the method described in ASTM D 143-52 (Anom., 1976). The swelling and shrinkage test specimen was 5.0 cm x 5.0 cm x 1.5 cm block and of 5.0 cm x 5.0 cm x 3.5 cm for water absorption determination.
The test results revealed that irradiation treatment were highly significantly increase density, hardness, compression parallel to the grain and compression perpendicular to the grain, but decrease swelling, shrinkage and water absorption. Meanwhile, shrinkage and swelling on radial direction, and impact bending strength showed non-significant difference (P ≥ 0.05).
It is also concluded that irradiation of two megarad (20 KGy) increase the density, hardness, compression parallel to the grainand compression perpendicular to the grain by one and half fold compared to untreated specimens. On the other hand, water absorption, swelling and shrinkage for tangential direction decrease to about the same magnitude when treated with the same level of irradiation compared to untreated ones.
Impact bending strength showed non-significant difference for all treatment levels. |
| first_indexed | 2024-12-11T06:14:07Z |
| format | Article |
| id | doaj.art-e2310c4e3d3442dcb52274efa076bebf |
| institution | Directory Open Access Journal |
| issn | 0216-4329 2442-8957 |
| language | Indonesian |
| last_indexed | 2024-12-11T06:14:07Z |
| publishDate | 2017-08-01 |
| publisher | Forest Product Research and Development Center |
| record_format | Article |
| series | Jurnal Penelitian Hasil Hutan (Journal of Forest Products Research) |
| spelling | doaj.art-e2310c4e3d3442dcb52274efa076bebf2022-12-22T01:18:02ZindForest Product Research and Development CenterJurnal Penelitian Hasil Hutan (Journal of Forest Products Research)0216-43292442-89572017-08-01141710.20886/jphh.1984.1.4.1-72147PENGARUH TINGKAT IRADIASI TERHADAP SIFAT FISIS DAN MEKANIS KAYU KARET YANG DIIMPREGNASI DENGAN POLIESTER STIRENBakir Ginoga0B Sipayung S1Karnasudirdja Karnasudirdja2Suyitno Suyitno3Pusat Penelitian dan Pengembangan Hasil HutanPusat Penelitian dan Pengembangan Hasil HutanPusat Penelitian dan Pengembangan Hasil HutanPusat Penelitian dan Pengembangan Hasil HutanThe effect of irradiation level i.e. two megarad (20 KGy), four megarad (40 KGy) and six megarad (60 KGy) pre impregnated with polyester styrene was investigated on rubber wood (Hevea brasiliensis Muell. Arg.). The samples were obtained from locally cultivated rubber trees at Jasinga subdistrict, Bogor, West Java. The treated wood properties tested include airdry density, hardness, compression parallel to the grain, compression perpendicular to the grain and impact bending strength, using the method described in ASTM D 143-52 (Anom., 1976). The swelling and shrinkage test specimen was 5.0 cm x 5.0 cm x 1.5 cm block and of 5.0 cm x 5.0 cm x 3.5 cm for water absorption determination. The test results revealed that irradiation treatment were highly significantly increase density, hardness, compression parallel to the grain and compression perpendicular to the grain, but decrease swelling, shrinkage and water absorption. Meanwhile, shrinkage and swelling on radial direction, and impact bending strength showed non-significant difference (P ≥ 0.05). It is also concluded that irradiation of two megarad (20 KGy) increase the density, hardness, compression parallel to the grainand compression perpendicular to the grain by one and half fold compared to untreated specimens. On the other hand, water absorption, swelling and shrinkage for tangential direction decrease to about the same magnitude when treated with the same level of irradiation compared to untreated ones. Impact bending strength showed non-significant difference for all treatment levels.http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3134concludedresultstreatmentcompression |
| spellingShingle | Bakir Ginoga B Sipayung S Karnasudirdja Karnasudirdja Suyitno Suyitno PENGARUH TINGKAT IRADIASI TERHADAP SIFAT FISIS DAN MEKANIS KAYU KARET YANG DIIMPREGNASI DENGAN POLIESTER STIREN Jurnal Penelitian Hasil Hutan (Journal of Forest Products Research) concluded results treatment compression |
| title | PENGARUH TINGKAT IRADIASI TERHADAP SIFAT FISIS DAN MEKANIS KAYU KARET YANG DIIMPREGNASI DENGAN POLIESTER STIREN |
| title_full | PENGARUH TINGKAT IRADIASI TERHADAP SIFAT FISIS DAN MEKANIS KAYU KARET YANG DIIMPREGNASI DENGAN POLIESTER STIREN |
| title_fullStr | PENGARUH TINGKAT IRADIASI TERHADAP SIFAT FISIS DAN MEKANIS KAYU KARET YANG DIIMPREGNASI DENGAN POLIESTER STIREN |
| title_full_unstemmed | PENGARUH TINGKAT IRADIASI TERHADAP SIFAT FISIS DAN MEKANIS KAYU KARET YANG DIIMPREGNASI DENGAN POLIESTER STIREN |
| title_short | PENGARUH TINGKAT IRADIASI TERHADAP SIFAT FISIS DAN MEKANIS KAYU KARET YANG DIIMPREGNASI DENGAN POLIESTER STIREN |
| title_sort | pengaruh tingkat iradiasi terhadap sifat fisis dan mekanis kayu karet yang diimpregnasi dengan poliester stiren |
| topic | concluded results treatment compression |
| url | http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3134 |
| work_keys_str_mv | AT bakirginoga pengaruhtingkatiradiasiterhadapsifatfisisdanmekaniskayukaretyangdiimpregnasidenganpoliesterstiren AT bsipayungs pengaruhtingkatiradiasiterhadapsifatfisisdanmekaniskayukaretyangdiimpregnasidenganpoliesterstiren AT karnasudirdjakarnasudirdja pengaruhtingkatiradiasiterhadapsifatfisisdanmekaniskayukaretyangdiimpregnasidenganpoliesterstiren AT suyitnosuyitno pengaruhtingkatiradiasiterhadapsifatfisisdanmekaniskayukaretyangdiimpregnasidenganpoliesterstiren |