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Decay Resistance of Bamboo Oriented Strand Board Pretreated with Copper-based Preservatives

Artículos

Revista/Conferencia:

BIORESOURCES

Language:

English

Autor:

Jin Juwan; Wu Chun; Sun Wenqiang; Liu Chenguang; Cao Xinhao; Niu Xin

Experts:

Qin Daochun; Peng Wanxi

Año:

2016

Volumen:

11

Edición:

1

Número de páginas:

1541-1553

Palabras claves:

Decay resistance; Bamboo oriented strand board; Alkaline copper quat; Copper azole; Phenol formaldehyde resin; Physical and mechanical properties

To enhance the decay resistance of bamboo oriented strand board (OSB) products, the strands were dipped in solutions of alkaline copper quat (ACQ) and copper azole (CA) and bonded with phenol formaldehyde resin into two types of OSB panels, i.e., panels with 100% treated strands and those with treated strands only in the face layers. The results indicated that the decay resistance of treated panels was effectively enhanced. The physical and mechanical properties of all treated panels exceeded the requirements specified for category OSB/4 or OSB/3 in the standard LY/T 1580-2010. Statistical data analysis showed that pretreatment with ACQ and CA did not have detrimental effects on the overall physical and mechanical properties of panels at the loading levels investigated in this study. Panels with pretreated strands only in the face layers had strong decay resistance and comparable overall properties as those with 100% treated strands. The results suggest that pretreatment is a promising way to introduce waterborne ACQ and CA to protect bamboo OSB.