矿物填料在三层刨花板表层的应用及填料含量对材料性能的影响

IF 1.3 Q2 MATERIALS SCIENCE, PAPER & WOOD International Wood Products Journal Pub Date : 2020-03-10 DOI:10.1080/20426445.2020.1735753
T. Ozyhar
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引用次数: 5

摘要

研究了三层刨花板表层矿物填料的添加量与填料含量的关系及其对材料性能的影响。以尿素甲醛为树脂,在实验室规模下生产了密度为700 kg m - 3的三层刨花板,表层中碳酸钙填料的重量分数为0、10、20和40% (wt-%)。考察了无机填料对材料弹性、强度、尺寸稳定性和甲醛释放量的影响。结果表明,在表面层中添加10 wt-%的填料对力学性能没有显著影响。填料添加量在10 wt-%以上的进一步增加导致弯曲性能几乎呈线性下降,吸水率增加,但对尺寸稳定性和甲醛释放量没有显著影响。
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Application of mineral filler in surface layer of three-layer particle board and its effect on material properties as a function of filler content
ABSTRACT Addition of mineral filler in the surface layer of three-layer particle board and its influence on material properties was studied as a function of filler content. Three-layer particle board with a density of 700 kg m−3 and 0, 10, 20, and 40% weight fraction (wt-%) of calcium carbonate filler in surface layers was produced in laboratory scale using urea formaldehyde as resin. The effect of inorganic filler on elastic and strength properties, dimensional stability and formaldehyde emissions was investigated. The results demonstrated that the addition of filler in amounts up to 10 wt-% in surface layers does not significantly affect mechanical properties. Further increase in filler addition above 10 wt-% resulted in a nearly linear decrease in bending properties and increase in water uptake, however did not significantly affect dimensional stability and formaldehyde emissions.
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来源期刊
International Wood Products Journal
International Wood Products Journal MATERIALS SCIENCE, PAPER & WOOD-
CiteScore
2.40
自引率
0.00%
发文量
27
期刊最新文献
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