In order to improve the physical and mechanical properties of rattan,Calamus faberii was taken as the research object,MMA(methyl methacrylate),SBCPA(Si-Bi-Cd-Pb alloy)and FA(furfuryl alcohol)were se-lected as modified reagents.An orthogonal experiment was arranged at three levels,including four factors,namely,modifier,impregnation amount,treatment temperature and treatment time.According to the pre-experiment,the maximum impregnation amount of the specimen impregnated with MMA,FA and SBCPA were about 35％,70％and 200％,respectively.The results showed that the main physical and mechanical properties of the three modi-fied C.faberii were modified to different degrees,MOE(modulus of elasticity),MOR(bending strength),USCPG(compressive strength parallel to grain),SSPG(shearing strength parallel to grain)and BD(basic density)increased by 8.3％-64.2％,28.0％-107.6％,30.5％-94.4％,3.8％-32.1％and 32.1％-220.7％,respectively,while VSOD(volume over-dried shrinkage ratio)dropped by 19.6％-75.4％.A combination of factors determining the best process were as follows:the modified reagent was SBCPA,the impregnation amount was 195％,the treat-ment temperature was 105 ℃,and the treatment time was 2 h.According to the verification experiment obtained the modified material,MOE,MOR,USCPG,SSPG and BD were 4 350 MPa,181.2 MPa,77.8 MPa,12.3 MPa and 1.612 g·cm-3,and increased by 46.9％,102.9％,60.2％,12.2％and 221.1％,correspondingly;VSOD was 7.3％,down 27.0％from the material.EC(electrical conductivity)and LOI(limit oxygen index)also increased from 0 S·m-1 and 27.7％to 0.904 S·m-1 and 29.9％,correspondingly.In conclusion,after the modification treatment of SBCPA,the BD and main mechanical strength of C.faberii were significantly improved,the VSOD was sig-nificantly reduced,and the EC and LOI were also modified to varying degrees.
Calamus faberii Becc.MMAFASBCPAmodification treatmentphysical and mechanical properties
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