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首页> 外文会议>Mechanical properties and performance of engineering ceramics and composites VII >INNOVATIVE CLAY-CELLULOS1C BIOSOURCED COMPOSITE: FORMULATION AND PROCESSING
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INNOVATIVE CLAY-CELLULOS1C BIOSOURCED COMPOSITE: FORMULATION AND PROCESSING

机译：创新的粘土-纤维素1C生物合成复合材料：配方和加工

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摘要

The present research work is in line with sustainable and environment conscious development through the use of natural raw materials for the processing of biosourced products. The main scope is to manufacture a new class of products for future application as protection barriers for delicate objects towards fire and flooding. The main requirements that must be fulfilled for such application are: flame resistance, waterproof, good permeability and adequate flexural strength (> 2 MPa). Kaolinitic-illitic raw clays were selected as starting materials regarding their specific behaviors. Various clay-fiber compositions were prepared and optimized regarding the final required characteristics. Three surfactants, Na_2CO_3, Na_2SiO_3 and HMP (sodium hexametaphosphate) were used to improve the rheological behavior of the system. The couple Na_2CO_3/Na_2SiO_3 for 0.7 mass%/0.05 mass% content within the slurry leads to lower yield stress and to a shear-thinning behavior suitable for the shaping process. Eco-products, consolidated without sintering, can thus be manufactured. The optimized formulation consists of a clay-fiber mixture with a fiber/clay ratio of 0.14. The key characteristics obtained for this product are: MO class, resistance towards water seeping of 90 min, heat resistance of ΔT ≈ 350℃ and flexural strength of 7 MPa.
机译：通过使用天然原料加工生物来源产品，当前的研究工作符合可持续发展和环境意识发展。主要范围是制造一类新产品，以备将来使用，以作为对易燃物品和火苗的防护屏障。此类应用必须满足的主要要求是：阻燃性，防水性，良好的渗透性和足够的抗弯强度（> 2 MPa）。就其特殊性能而言，选择了高岭土-非法生土作为起始原料。制备了各种粘土纤维组合物，并针对最终所需的特性进行了优化。使用了三种表面活性剂Na_2CO_3，Na_2SiO_3和HMP（六偏磷酸钠）来改善体系的流变性。浆料中0.7质量％/ 0.05质量％的偶数Na_2CO_3 / Na_2SiO_3导致较低的屈服应力和适合于成型工艺的剪切稀化行为。因此，可以制造未经烧结而固结的生态产品。优化的配方由纤维/粘土比率为0.14的粘土-纤维混合物组成。该产品获得的关键特性是：MO级，90分钟的耐水渗漏性，ΔT≈350℃的耐热性和7 MPa的抗弯强度。

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  • 会议地点 Daytona Beach FL(US);Daytona Beach FL(US);Daytona Beach FL(US)
  • 作者

    Gisele L. Lecomte-Nana; Olivier Barre; Catherine Nony; Gilles Lecomte; Thierry Terracol;

  • 作者单位

    Laboratoire Groupe d' Etude des Materiaux Heterogenes, Centre Europeen de la Ceramique, 12 rue Atlantis, 87068 Limoges Cedex, France,Societe Bibliontek, AVRUL Dpt Incubateur, 1 avenue Ester Technopole, 87069 Limoges, France;

    Societe Bibliontek, AVRUL Dpt Incubateur, 1 avenue Ester Technopole, 87069 Limoges, France;

    Societe Bibliontek, AVRUL Dpt Incubateur, 1 avenue Ester Technopole, 87069 Limoges, France;

    Laboratoire Groupe d' Etude des Materiaux Heterogenes, Centre Europeen de la Ceramique, 12 rue Atlantis, 87068 Limoges Cedex, France,Societe Bibliontek, AVRUL Dpt Incubateur, 1 avenue Ester Technopole, 87069 Limoges, France;

    Societe Bibliontek, AVRUL Dpt Incubateur, 1 avenue Ester Technopole, 87069 Limoges, France;

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