جستجوی مقالات مرتبط با کلیدواژه « soya stem » در نشریات گروه « منابع طبیعی »

This investigation reveals the application of lignocelluloses extract, which contains the Soya stem in producing Particleboard. To make the particleboard, Soya stem and industrial wood particle in combination with 4 components (1.Soya stem 100% 2. Soya stem 75% and industrial wood particle 25% 3. Soya stem 50% and industrial wood particle 50 % 4. Soya stem 25% and industrial wood particle 75%) and types 10 and 12 % resin consumption content in two press time ( 4 and 6 min ) have been used . The mixture of above elements produce 16 different combination, and for each combination 3 boards in total 48 boards were used. The result of physical and mechanical properties were analyzed using Randomized Complete Block experimental Design ( RCBD ) and the average use of Duncan Experimental Test groups . According to the results , it revealed that MOR and MOE of boards have significantly been increased by increasing the amount of resin consumption from 10 t0 12 % .On the other hand , the results showed that adding Soya stem to wood combination and decreasing the industrial wood particle lead to increasing the MOR and MOE of boards and these features are within Iran standard while using 100 and 75 % of Soya stem in boards’ making .Mutual effect of resin consumption amount and press time on MOR of boards is meaningful and by increasing the press time from 4 to 6 min while 12 % of resin consumption , MOR of boards has been increased . The results of this investigation showed that increasing the resin consumption amount leads to boards’ IB improvement. In addition, by increasing the press time with 10 % of resin consumption amount , IB of boards has been decreased while it has been improved significantly with 12 % of resin consumption amount . But all of the average amounts for produced boards’ IBs have been higher than standard level .Results obtained from the effect of variable factors on TS 2,24h showed that increasing the resin consumption amount has statistically decreased TS2,24h and also WA2,24h in a meaningful level . These results also revealed that wood combination doesn’t have meaningful effect on these features while adding press time from 4 to 6 min has increased WA24h of boards meaningfully .