EFFECTS OF DURATION AND TEMPERATURE OF THE HEATING PROCESS FOR RESIN CURING ON SEVERAL MECHANICAL AND PHYSICAL PROPERTIES OF BAMBOO SCRIMBER
Keywords:
Bamboo scrimber, resin curing, heating duration, heating temperatureAbstract
The heating process for resin curing is the final stage of the technology procedure for manufacturing bamboo scrimber. This stage is one of the most important stages of the manufacture of bamboo scrimber and has effects on almost all mechanical and physical properties of bamboo scrimber. This article demonstrated the research results of the effects of the duration and temperature during the heating process for resin curing of bamboo scrimber after cold pressing using the curing channel CFGH - 3000. Three levels of duration (10h, 11h, 12h) and three different ranges of temperature in the six zones of the curing channel were applied for resin curing. The results indicated that the duration and temperature of the heating process: duration of 11h, temperature at different zones; zone 1: first 3 m room temperature, zone 2: next 3 m 80 - 110oC, zone 3: next 3 m 110 - 120oC, zone 4: next 21 m 120 - 130oC, zone 5: next 10 m 130 - 80oC, zone 6: the final 5 m room temperature created the bamboo scrimber with the best performance: modulus of rupture (MOR) of 149.38 MPa, modulus of elastic (MOE) of 18,256.82 MPa, tensile parallel to grain of 14.21 MPa, compression parallel to grain of 100.25 MPa, thickness swelling (TS) of 1.45%
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