臺灣博碩士論文加值系統

　使用自製之花生殼萃取物－酚－甲醛共聚合樹脂為膠合劑，配合不同樹
種木材製造建築用粒片板（杉木和臺灣泡桐）與家具用粒片板（杉木、相
思樹和麻六甲合歡），除測定粒片板之各項理學及力學性質；並在固定溫
度與濕度的環境中，以自製樹脂膠合之杉木粒片板，做長期負荷之潛變試
驗。由本試驗得知：為膠合劑樹之脂者，其pH值與含鹼量高於一般商用樹
脂；游離甲醛含量則僅為本省商用UF樹脂之26﹪。建築用粒片板中，以杉
木粒片板之強度較優，臺灣泡桐粒片板則因製造條件不適當，造成粒片板
密度未達目標且強度偏低。家具用粒片板，仍以杉木粒片板之強度最優；
相思樹粒片板則因緊密度過小，無法達到應有之強度；麻六甲合歡粒片板
在本實驗中，無法得到令人滿意的結果。粒片板之游離甲醛含量僅為
4.36mg／L，合乎中國國家標準。杉木粒片板在固定溫度與濕度的環境下
進行長期負荷潛變試驗，試驗後，其 MOE 與 MOR 各保留80.61﹪及
92.07﹪；其潛變變形量隨時間增加而增加之關係式為：Ｙ＝ｔ／（0.01
＋0.08ｔ）其中，Ｙ＝潛變變形量（mm）；　ｔ＝負荷時間（hr）。

The peanut hull extracts－phenol－formaldehyde copoly- mer
resin as glue to make particleboards and flake-boards using
different wood speices（ particleboards made from China fir and
Taiwan paulownia,flakeboards made from China fir、Taiwan acacia
and Moluccan sau）．This glue named home made resin．The
results abtained by this experiment may be summarized as：The
pH valueand alkali content of home made resin were higher than
the commercial resins，and the free formaldehyde content were
only 26﹪ about commercial UF resin in Taiwan．The flakeboards
made from China fir were the best of ones bonded with home made
resin．The flake- boards made from Taiwan paulownia didn't
attain the planned density and their strength were weaker．The
particleboards made from China fir still were the best of ones
bonded with home made resin．The particleboards made from
Taiwan acacia couldn't attain the expected strength，because
their com- pression ratio（compaction ratio）were too low．The
other ones made from Moluccan sauon this experiment were not
good enough．Formaldehyde was released from the particleboards
made from China fir that bonded with the peanut hull ex- tracts
－phenol－formaldehyde copolymer resin about 4.36mg/L free
formaldehyde．The particleboards made from China fir showed a
residual MOE and MOR about 80.16﹪ and 92.07﹪ re- spectively
after long term（720 hours）creep test．The line arizable
function between creep deflections and loading time was：Ｙ＝ｔ
／（0.01g＋0.08ｔ），whereＹ＝Creep deflec- tion（mm）；ｔ＝
Loadingtime（hr.）