Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fly ash energy-saving and environment-friendly composite board and manufacturing method thereof
The invention relates to a fly ash energy-saving and environment-friendly composite board and a manufacturing method thereof, and belongs to the technical field of plastic packaging, the preparation method comprises the following steps: plant fibers are soaked in deionized water, sodium hydroxide is added, stirring and taking out are performed, the plant fibers are placed in an acrylic acid solution, soaking is performed for 1 h, filtering, washing and drying are performed, and pretreated plant fibers are obtained; adding the pretreated plant fiber, a reinforcing filler and a catalyst sodium p-toluenesulfonate into deionized water, stirring, filtering, washing and drying to obtain a mixture; placing the mixture in deionized water, stirring to form fiber slurry, paving and pre-pressing the fiber slurry in a mold, carrying out hot press molding, cooling and demolding to obtain a composite board; fly ash is modified through microwave assisted alkali and is combined with nanoparticles through positive and negative electricity, the nanoparticles are adsorbed in fly ash cavities, solid particles are wrapped with tannic acid, the tannic acid can chelate metal ions contained in the fly ash, and environmental pollution caused by diffusion of the metal ions in the fly ash is avoided.
本发明涉及一种飞灰节能环保复合板材及其制造方法，属于塑料包装技术领域，制备方法包括如下步骤：将植物纤维浸渍到去离子水中，加入氢氧化钠，搅拌，取出，置于丙稀酸溶液中，浸渍1h，经过滤、洗涤、干燥，制得预处理植物纤维；将预处理植物纤维、增强填料和催化剂对甲苯磺酸钠加入到去离子水中，搅拌，经过滤、洗涤、干燥，得到混合料；将混合料置于去离子水中，搅拌，形成纤维浆料，将纤维浆料在模具中铺装预压，热压成型后降温脱模，制得复合板材；飞灰经微波助碱改性，与纳米颗粒通过正负电结合，纳米粒子吸附在飞灰空腔内部，单宁酸包裹固体颗粒，单宁酸能够螯合飞灰中含有的金属离子，避免飞灰中金属离子扩散造成环境污染。
Fly ash energy-saving and environment-friendly composite board and manufacturing method thereof
The invention relates to a fly ash energy-saving and environment-friendly composite board and a manufacturing method thereof, and belongs to the technical field of plastic packaging, the preparation method comprises the following steps: plant fibers are soaked in deionized water, sodium hydroxide is added, stirring and taking out are performed, the plant fibers are placed in an acrylic acid solution, soaking is performed for 1 h, filtering, washing and drying are performed, and pretreated plant fibers are obtained; adding the pretreated plant fiber, a reinforcing filler and a catalyst sodium p-toluenesulfonate into deionized water, stirring, filtering, washing and drying to obtain a mixture; placing the mixture in deionized water, stirring to form fiber slurry, paving and pre-pressing the fiber slurry in a mold, carrying out hot press molding, cooling and demolding to obtain a composite board; fly ash is modified through microwave assisted alkali and is combined with nanoparticles through positive and negative electricity, the nanoparticles are adsorbed in fly ash cavities, solid particles are wrapped with tannic acid, the tannic acid can chelate metal ions contained in the fly ash, and environmental pollution caused by diffusion of the metal ions in the fly ash is avoided.
本发明涉及一种飞灰节能环保复合板材及其制造方法，属于塑料包装技术领域，制备方法包括如下步骤：将植物纤维浸渍到去离子水中，加入氢氧化钠，搅拌，取出，置于丙稀酸溶液中，浸渍1h，经过滤、洗涤、干燥，制得预处理植物纤维；将预处理植物纤维、增强填料和催化剂对甲苯磺酸钠加入到去离子水中，搅拌，经过滤、洗涤、干燥，得到混合料；将混合料置于去离子水中，搅拌，形成纤维浆料，将纤维浆料在模具中铺装预压，热压成型后降温脱模，制得复合板材；飞灰经微波助碱改性，与纳米颗粒通过正负电结合，纳米粒子吸附在飞灰空腔内部，单宁酸包裹固体颗粒，单宁酸能够螯合飞灰中含有的金属离子，避免飞灰中金属离子扩散造成环境污染。
Fly ash energy-saving and environment-friendly composite board and manufacturing method thereof
一种飞灰节能环保复合板材及其制造方法
ZHANG JINBIN (Autor:in) / ZHANG JIALIANG (Autor:in)
24.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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