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Thermal, Physical and mechanical characterization of sugarcane bagasse particleboards for civil construction

機(jī)譯：用于民用建筑的甘蔗甘蔗纖維板的熱，物理和力學(xué)表征

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In the worldwide market of particleboard production, the use of alternative raw materials is increasing, due to high demand and lack of traditional raw material, despite the reforestation. In Brazil, the main agricultural commodity is the sugarcane due to the great production of sugar and ethanol. Nevertheless, sugar-alcohol industries generate a significant volume of sugarcane bagasse. In the state of Sao Paulo approximately 140 million tons/year of sugarcane bagasse are produced, from which around 70% are burned for energy production, not adding value to the residue and generating pollution to the environment; and the others 30% are sold for composting. In such a way, the objective of this work is to add value to the sugarcane bagasse by using it as a raw material for particleboard production to be employed as floor in the civil construction. Thus, this research characterized the physical and mechanical characteristics of the particleboards with the following alternatives raw materials: sugarcane bagasse and leaves of bamboo. Particleboards were produced to reach high density (0.8g/cm3) using the resin (bi-component) poliuretana castor oil. Tests for abrasion, roughness and janka hardness were carried out following the standards NBR 14833 - 1: 2008, NBR 6405, and NBR 7190/1997 [1,2], respectively. It was verified that the addition of leaves of bamboo in the mixtures, contrarily to what was expected, did not generate greater values of resistance to the particleboards. Simultaneous thermogravimetry TG/DTG-DTA curves were obtained with thermal analysis system, model STA 449 F3 Jupiter from Netzsch. The purge gas was an air flow of 50 mL min-1. A heating rate of 10 °C min-1 was adopted, with samples weighting about 13 mg. Alumina crucibles were used for TG/DTG-DTA curves. DSC curves were obtained with thermal analysis system model DSC 1 Stare System from Mettler-Toledo. The purge gas was an air flow of 50 mL min-1. A heating rate of 10 °C min-1 was adopted, with samples weighting about 10 mg. Alumina crucible was used for TG-DTG-DTA curves. Aluminium crucibles (with sealed cover) were used for DSC curves. Tables 1, 2 and 3 shows a summary of the values obtained in the different physical, mechanical and thermal tests. In the worldwide market of particleboard production, the use of alternative raw materials is increasing, due to high demand and lack of traditional raw material, despite the reforestation. In Brazil, the main agricultural commodity is the sugarcane due to the great production of sugar and ethanol. Nevertheless, sugar-alcohol industries generate a significant volume of sugarcane bagasse. In the state of Sao Paulo approximately 140 million tons/year of sugarcane bagasse are produced, from which around 70% are burned for energy production, not adding value to the residue and generating pollution to the environment; and the others 30% are sold for composting. In such a way, the objective of this work is to add value to the sugarcane bagasse by using it as a raw material for particleboard production to be employed as floor in the civil construction. Thus, this research characterized the physical and mechanical characteristics of the particleboards with the following alternatives raw materials: sugarcane bagasse and leaves of bamboo. Particleboards were produced to reach high density (0.8g/cm3) using the resin (bi-component) poliuretana castor oil. Tests for abrasion, roughness and janka hardness were carried out following the standards NBR 14833 - 1: 2008, NBR 6405, and NBR 7190/1997 [1,2], respectively. It was verified that the addition of leaves of bamboo in the mixtures, contrarily to what was expected, did not generate greater values of resistance to the particleboards. Simultaneous thermogravimetry TG/DTG-DTA curves were obtained with thermal analysis system, model STA 449 F3 Jupiter from Netzsch. The purge gas was an air flow of 50 mL min-1. A heating rate of 10 °C min-1 was adopted, with samples weighting about 13 mg
機(jī)譯：在全世界的刨花板生產(chǎn)市場中，盡管有重新造林，但由于高需求和缺乏傳統(tǒng)原料，使用替代原材料正在增加。在巴西，主要農(nóng)產(chǎn)品是甘蔗，由于糖和乙醇的巨大生產(chǎn)。然而，糖酒工業(yè)產(chǎn)生了大量的甘蔗甘蔗。在圣保羅州，生產(chǎn)了約1.4億噸/年的甘蔗甘蔗渣，大約70％的能源生產(chǎn)，而不是向殘留物增加價值并對環(huán)境產(chǎn)生污染;其他人30％被銷售堆肥。以這種方式，這項工作的目的是通過使用它作為刨花板生產(chǎn)的原料增加甘蔗甘蔗蛋白的價值，以便在土木建筑中作為地板。因此，該研究表征了刨花板的物理和機(jī)械特性，具有以下替代原料：甘蔗甘蔗渣和竹葉。制備刨花板以使用樹脂（雙組分）Poliuretana蓖麻油達(dá)到高密度（0.8g / cm 3）。在標(biāo)準(zhǔn)NBR 14833-1：2008，NBR 6405和NBR 7190/1997 [1,2]之后進(jìn)行磨損，粗糙度和喇嘛硬度的試驗。驗證了與預(yù)期的混合物中竹子的葉片添加了對刨花板的更大的抗性值。使用熱分析系統(tǒng)獲得同時熱重率TG / DTG-DTA曲線，來自Netzsch的STA 449 F3 Jupiter。吹掃氣體是50mL min-1的空氣流動。采用10°C min-1的加熱速率，樣品加權(quán)約13毫克。氧化鋁坩堝用于TG / DTG-DTA曲線。使用來自Mettler-Toledo的熱分析系統(tǒng)模型DSC 1凝視系統(tǒng)獲得了DSC曲線。吹掃氣體是50mL min-1的空氣流動。采用10°C min-1的加熱速率，樣品加權(quán)約10毫克。氧化鋁坩堝用于TG-DTG-DTA曲線。鋁坩堝（帶密封蓋）用于DSC曲線。表1,2和3示出了在不同物理，機(jī)械和熱測試中獲得的值的概述。在全世界的刨花板生產(chǎn)市場中，盡管有重新造林，但由于高需求和缺乏傳統(tǒng)原料，使用替代原材料正在增加。在巴西，主要農(nóng)產(chǎn)品是甘蔗，由于糖和乙醇的巨大生產(chǎn)。然而，糖酒工業(yè)產(chǎn)生了大量的甘蔗甘蔗。在圣保羅州，生產(chǎn)了約1.4億噸/年的甘蔗甘蔗渣，大約70％的能源生產(chǎn)，而不是向殘留物增加價值并對環(huán)境產(chǎn)生污染;其他人30％被銷售堆肥。以這種方式，這項工作的目的是通過使用它作為刨花板生產(chǎn)的原料增加甘蔗甘蔗蛋白的價值，以便在土木建筑中作為地板。因此，該研究表征了刨花板的物理和機(jī)械特性，具有以下替代原料：甘蔗甘蔗渣和竹葉。制備刨花板以使用樹脂（雙組分）Poliuretana蓖麻油達(dá)到高密度（0.8g / cm 3）。在標(biāo)準(zhǔn)NBR 14833-1：2008，NBR 6405和NBR 7190/1997 [1,2]之后進(jìn)行磨損，粗糙度和喇嘛硬度的試驗。驗證了與預(yù)期的混合物中竹子的葉片添加了對刨花板的更大的抗性值。使用熱分析系統(tǒng)獲得同時熱重率TG / DTG-DTA曲線，來自Netzsch的STA 449 F3 Jupiter。吹掃氣體是50mL min-1的空氣流動。采用10°C min-1的加熱速率，樣品加權(quán)約13毫克

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