Development of lightweight wood-cement composite board using microballoon of fine pulvernized volcanic glass(micro-Shirasu-balloons)

利用细粉火山玻璃微球（微白石球）开发轻质木水泥复合板

• 批准号: 04660184
• 负责人: YOSHIDA Hiroaki
• 金额: $ 1.28万
• 依托单位: Shizuoka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04660184/
• 关键词: Wood; cement composite; Shirasu-balloon; high density; lightweight material; incombustibility; 軽量; 難燃

In order to make lightweight wood-cement composite board, various parts of micro-Shirasu-balloon were mixed into cement-bonded particleboard. It was expected that the addition of the balloon would not only make them lighter, but also improve some properties. Because the balloon is the burning product from fine pulvernized volcanic glass and possesses very low density, low thermal conductivity, low hygroscopicity, highly melting point, highly heat resistance and incombustibility. Boards for test were made at the mixture ratio under the conditions as follows :Cement/wood chip ratio(Wood ratio) : 2.0,2.5Balloon/cement ratio(Balloon ratio) : 0-0.5Target density : 0.6-1.2 Board size : 350x350x15mmResults were summarized from physical tests and observation of the boards made as follows :(1)Target thickness could not be controlled in higher density board of the wood ratio of 2.5 at higher Balloon ratio.(2)Surface condition of the boards was improved remarkably, especially in lower density boards.(3)Bending properties and internal bond quality were improved in the boards of the density of 0.8 and more at lower ballon ratio of 0.1 and 0.2. Even the board with the density of 0.8 met the requirements of JIS of High Density Cement-Bonded Particleboard in bending strength. But, those properties decreased in the boards of the balloon ratio less than 0.2.(4)Thickness swelling after 24h soaking test was reduced remarkably in the boards at the balloon ratio of 0.1 and more, especially in higher density boards.(5)Five to ten percentile reduction of thermal conductivity was recognized in the boards of the density of 1.2 at the balloon ratio 0.3 and more, and of the density of 1.0 and 0.8 at the balloon ratio 0.2 and more.(6)All of the boards for test showed high fire resistance and met the requirements of the JIS incombustibility grade 2 of Internal Finish Material.

为了制备轻质木材水泥复合板，将不同比例的白炭黑微球掺入到水泥刨花板中。预计气球的加入不仅会使它们更轻，而且还会改善一些性能。因为气球是火山玻璃细粉燃烧的产物，具有很低的密度、低导热性、低吸湿性、高熔点、高耐热性和不燃性。测试用板在如下条件下以混合比制成：水泥/木屑比（木材比）：2.0，2.5气球/水泥比（气球比）：0- 0.5目标密度：0.6-1.2板尺寸：350 × 350 × 15 mm从物理测试和观察制成的板的结果总结如下：（1）在较高的气球比下，在木材比为2.5的较高密度板中不能控制目标厚度。（2）板材的表面状况得到明显改善，尤其是低密度板材。（3）密度在0.8以上的板材，在较低的气囊比（0.1和0.2）下，弯曲性能和内部结合质量得到改善。即使是密度为0.8的板材，其弯曲强度也达到了高密度水泥胶合板JIS的要求。但是，这些性能下降，在板的气球比小于0.2。（4）当气泡率大于0.1时，板材24 h浸水后的厚度膨胀率显著降低，尤其是高密度板材。（5）在密度为1.2的板中，在气囊比为0.3或更大时，以及在密度为1.0和0.8的板中，在气囊比为0.2或更大时，可以看出导热率降低了5至10%。（6）所有试验用板都显示出高耐火性，并满足内部装饰材料的JIS不燃性等级2的要求。

项目成果

吉田弥明、滝欽二、若林隆広: "シラスバルーン木質セメントボードの製造" 第42回日本木材学会大会研究発表要旨集. 540 (1992)

Yaaki Yoshida、Kinji Taki、Takahiro Wakabayashi：“Shirasu 气球木水泥板的制造”日本木材学会第 42 届年会摘要 540（1992 年）。

高橋真、吉田弥明、滝欽二: "シラスバルーン添加木質セメントボードの製造条件と物性(II)" 第44回日本木材学会大会研究発表要旨集. 131 (1994)

高桥真、吉田弥明、泷金二：“添加银鱼气球的木质水泥板的制造条件和物理性能（II）”第44届日本木材学会会议研究报告摘要集131（1994年）。

高橋真、吉田弥明、滝欽二: "シラスバルーン添加セメントボードの製造条件と物性(II)" 第44回日本木材学会大会研究発表要旨集. 131-131 (1994)

Makoto Takahashi、Yaaki Yoshida、Kinji Taki：“含有银鱼气球的水泥板的制造条件和物理性能（II）”第 44 届日本木材学会会议上的研究报告摘要集 131-131（1994 年）。

高橋真、吉田弥明、滝欽二: "シラスバルーン添加木質セメントボードの製造条件と物性" 日本木材学会中部支部研究発表会要旨集. 44-45 (1993)

Makoto Takahashi、Yaaki Yoshida、Kinji Taki：“添加银鱼气球的木质水泥板的制造条件和物理性能”日本木材学会中部分会摘要44-45（1993）。

高橋真、吉田弥明、滝欽二: "シラスバルーン添加セメントボードの製造条件と物性" 日本木材学会中部支部研究発表会要旨集. 44-45 (1993)

Makoto Takahashi、Yaaki Yoshida、Kinji Taki：“添加银鱼气球的水泥板的制造条件和物理性能”日本木材学会中部分会摘要 44-45 (1993)。