RESIN-CONTAINING WOODEN MATERIAL AND METHOD FOR MANUFACTURING THE SAME
To provide a resin-containing wooden material with high rigidity that is unlikely to crack due to dryness after heat processing.SOLUTION: The resin-containing wooden material includes a wooden material and polyalkylene glycol. On the end surface of the wooden material, the proportion of the cross-se...
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Zusammenfassung: | To provide a resin-containing wooden material with high rigidity that is unlikely to crack due to dryness after heat processing.SOLUTION: The resin-containing wooden material includes a wooden material and polyalkylene glycol. On the end surface of the wooden material, the proportion of the cross-sectional area of vessels with diameters of 30 to 200 μm is 5% or more and less than 60% per growth ring. The polyalkylene glycol permeates the inside of the vessels, and the weight-average molecular weight is 3000 to 20000. The content of the polyalkylene glycol in the resin-containing wooden material is 30 to 70 mass%. A method for manufacturing the resin-containing wooden material includes a step for impregnating the wooden material with the polyalkylene glycol, and the content of the polyalkylene glycol in the resin-containing wooden material is 30 to 70 mass%.SELECTED DRAWING: None
【課題】熱処理後の乾燥による割れの発生が少なく、高い硬度を有する樹脂含有木質材料を提供する。【解決手段】樹脂含有木質材料は、木口面において、道管径が30μm〜200μmである道管の断面面積比率が1年輪当たり5%以上60%未満である木質材料と、道管の内部に浸透し、重量平均分子量が3000〜20000であるポリアルキレングリコールとを有し、ポリアルキレングリコールの含有率が30〜70質量%である。樹脂含有木質材料の製造方法は、上記木質材料に、上記ポリアルキレングリコールを含浸させる工程を有し、樹脂含有木質材料におけるポリアルキレングリコールの含有率が30〜70質量%である。【選択図】なし |
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