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  • effect of adding rubber powder to poplar particles on composite properties

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 471
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the effect of adding rubber powder derived from waste tires to poplar wood particles on mechanical and water-resistant properties of particleboards was examined. sixty panels were made with rubber contents of 0–40% at hot-pressing temperatures of 140–180 °c, methylene diphenyl diisocyanate resin contents of 2–6% and panel densities of 0.6 to 1 g cm−3. although the modulus of rupture (mor), modulus of elasticity (moe), internal bond (ib) strength were reduced by adding rubber powder, the thickness swelling (ts) was reduced by 7.3–61% when 10–40% rubber powder was added. four regression equations (rubber content, pressing temperature, resin content and target panel density as functions of mor, moe, ib and ts) were developed and a nonlinear programing model was derived with operation research theory to obtain the most desirable panel properties under some production constraints.

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