NANOFIBRIL-POLYMER COMPOSITES
    241.
    发明申请
    NANOFIBRIL-POLYMER COMPOSITES 审中-公开
    纳米纤维聚合物复合材料

    公开(公告)号:WO2015009972A1

    公开(公告)日:2015-01-22

    申请号:PCT/US2014/047100

    申请日:2014-07-17

    Abstract: The present invention provides, among other things, compositions comprising nanofibrils, at least one maleic-anhydride (MA) copolymer and at least one matrix polymer, and methods of making such compositions. The provided methods and compositions allow for the production of composites with unexpectedly superior properties including improved impact resistance, tensile modulus of elasticity, tensile strength, and flexural modulus of elasticity as compared to previously known composites. In some embodiments, the present invention provides methods including the steps of providing cellulose nanofibrils, associating the cellulose nanofibrils with a maleic-anhydride (MA) copolymer to form a nanofibril-MA copolymer blend, preparing the nanofibril-MA copolymer blend for addition to a matrix polymer, and forming a composite by associating the nanofibril-MA copolymer blend with the matrix polymer, wherein the amount of cellulose nanofibrils in the composite is between 3% and 50% by weight of the composite.

    Abstract translation: 本发明尤其提供包含纳米原纤维,至少一种马来酸酐(MA)共聚物和至少一种基质聚合物的组合物以及制备这种组合物的方法。 所提供的方法和组合物允许与先前已知的复合材料相比,具有意想不到的优异性能的复合材料的生产,包括改进的抗冲击性,拉伸弹性模量,拉伸强度和挠曲弹性模量。 在一些实施方案中,本发明提供了包括以下步骤的方法:提供纤维素纳米原纤维,将纤维素纳米原纤维与马来酸酐(MA)共聚物缔合以形成纳米纤维MA共聚物共混物,制备纳米纤维MA共聚物共混物, 基质聚合物,并通过将纳米纤维-MA共聚物共混物与基质聚合物缔合而形成复合材料,其中复合材料中纤维素纳米原纤维的量为复合材料重量的3%至50%。

    FIBER PELLETS AND PROCESSES FOR FORMING FIBER PELLETS
    249.
    发明申请
    FIBER PELLETS AND PROCESSES FOR FORMING FIBER PELLETS 审中-公开
    用于形成纤维片的纤维片和方法

    公开(公告)号:WO03084726A2

    公开(公告)日:2003-10-16

    申请号:PCT/US0308338

    申请日:2003-03-18

    CPC classification number: B29B9/14 B29K2201/00 Y10T428/2933

    Abstract: Low moisture processed cellulose fiber pellets useful in the manufacture of cellulose fiber reinforced polymer products and materials, and an extruder-less process for forming such low moisture cellulose fiber pellets from wet processed cellulose fiber-based waste source materials. The cellulose fiber pellets include processed cellulose fibers and mixed plastics and/or inorganics such as minerals, clay, and the like, and have a moisture content of about 0.1 to 14 % by weight. The extruder-less process includes the steps of drying, grinding and pelletizing in a manner capable of forming low moisture cellulose fiber pellets from wet processed cellulose fiber-based waste source materials having a moisture content of about 40-80% by weight.

    Abstract translation: 用于制造纤维素纤维增强聚合物产品和材料的低水分加工的纤维素纤维颗粒,以及用于从湿法处理的纤维素纤维基废料源形成这种低水分纤维素纤维颗粒的无挤出方法。 纤维素纤维颗粒包括加工的纤维素纤维和混合塑料和/或无机物如矿物质,粘土等,并且水分含量为约0.1至14重量%。 无挤出方法包括干燥,研磨和造粒的步骤,其能够以湿含量为约40-80重量%的湿法加工的纤维素纤维基废料源形成低水分纤维素纤维颗粒。

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