Scientia Silvae Sinicae ›› 1999, Vol. 35 ›› Issue (2): 82-86.
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Qiang Wang,Aili Cao,Jitao Huang,Youcheng Wang,Jiyou Sun
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Abstract:
A novel polymer composite material(SMA WPC) was made from graft polymerization reaction with ternary copolymerization monomers such as styrene, methyl methacrylate and acrylonitrile(SMA) soaking into cell wall and activated cellulose. It was found that, by relative physical mechanical, water absorption, anti-acidity performances detected, the hardness of the manufactured material is 20%~35% higher, as well as the compressive capability of that 35%~45% higher than that of plain timber, And the weigh loss rate of the said substance decreases by 22% with three-day soaking in 98% concentrated sulphuric acid, and water absorption drops by 50% with eight-day dipping in water. And also, the microscopic structure before and after plasticiting was observed by means of scanning electron microscope.
Key words: tyrene, Methyl methacrylate, Acrylonitrile, Ternary polymerization, Graft, Wood-polymer composites(WPC)
Qiang Wang,Aili Cao,Jitao Huang,Youcheng Wang,Jiyou Sun. A NEW-TYPE WPC COMPOSITE MATERIAL FROM TERNARY GRAFT POLYMERIZATION OF STYRENE, METHYE METHACRYLATE AND ACRYLONITRITE[J]. Scientia Silvae Sinicae, 1999, 35(2): 82-86.
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Table 1
Comparisons of water absorption properties between WPC and wood"
Table 2
Comparisons of different physical mechanical properties between different wood and WPC"
Table 3
Physical mechanical properties of pre-treated WPC in 10% H2O2"
Table 4
Anti-acidity comparisons of WPC and wood(72h)"
Fig.1
Microscopic structure of vertical section of wood(×100)"
Fig.2
Microscopic structure of cross section of wood(×100)"
Fig.3
Microscopic structure of vertical section of H2O2-SM A-WPC(×100)"
Fig.4
Microscopic structure of cross section of H2O2-SMA-WPC(×100)"
