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    Fiber cement composite materials using bleached cellulose fibers
    1.
    发明授权
    Fiber cement composite materials using bleached cellulose fibers 有权
    纤维水泥复合材料使用漂白纤维素纤维

    公开(公告)号：US08333836B2

    公开(公告)日：2012-12-18

    申请号：US13066163

    申请日：2011-04-07

    申请人： Caidian Luo ,  Donald J. Merkley

    发明人： Caidian Luo ,  Donald J. Merkley

    IPC分类号： C04B16/06

    CPC分类号： C04B20/023 ,  C04B28/02 ,  Y02W30/97 ,  C04B18/24 ,  C04B18/248

    摘要： A fiber cement composite material that incorporates a blend of bleached and unbleached cellulose fibers as a partial or complete substitute for premium grade cellulose pulp is provided. Bleached standard grade cellulose fibers are used in conjunction with unbleached, standard grade cellulose fibers to provide a fiber cement composite product having substantially equal or even superior flexibility and strength as an equivalent fiber cement composite material reinforced by premium grade, unbleached cellulose fibers. A synergistic combination of bleached and unbleached standard grade cellulose fibers to produce a composite material with the desired properties previously achievable only through the use of premium grade cellulose pulp.

    摘要翻译： 提供了一种纤维水泥复合材料，其包含漂白纤维素纤维和未漂白纤维素纤维的混合物，作为优质级纤维素纸浆的部分或完全替代品。 漂白的标准级纤维素纤维与未漂白的标准级纤维素纤维结合使用以提供纤维水泥复合制品，其具有与由优质级未漂白纤维素纤维增强的等效纤维水泥复合材料基本相同或甚至优异的柔性和强度。 漂白和未漂白的标准级纤维素纤维的协同组合，以生产具有以前仅通过使用优质级纤维素纸浆可达到的所需性能的复合材料。

    Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility
    2.
    发明授权
    Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility 有权
    纤维增强水泥复合材料使用化学处理的纤维具有改进的分散性

    公开(公告)号：US07857906B2

    公开(公告)日：2010-12-28

    申请号：US12070838

    申请日：2008-02-21

    申请人： Caidian Luo ,  Donald J. Merkley

    发明人： Caidian Luo ,  Donald J. Merkley

    IPC分类号： C04B16/02

    CPC分类号： C04B20/1018 ,  C04B18/24 ,  C04B18/241 ,  C04B20/0048 ,  C04B20/1051 ,  C04B20/107 ,  C04B28/02 ,  C04B2103/408 ,  C08L1/02 ,  D21C9/005 ,  Y02W30/97 ,  Y10T428/2938 ,  Y10T428/2965 ,  C04B20/023 ,  C04B20/026 ,  C04B40/0064 ,  C04B2103/40 ,  C04B24/42 ,  C04B24/121

    摘要： A fiber-reinforced building material in one embodiment incorporates cellulose fibers that are chemically treated with a dispersant to impart improved dispersibility to the fibers. The fibers are treated with a dispersant which deactivates the hydroxyl sites of the fiber surfaces and in some cases, making the fiber surface more hydrophobic. The dispersant inhibits the hydroxyl groups on the cellulose fiber surface from bonding with hydroxyl groups of other fibers and from bonding with hydroxyl groups of the same fiber, thereby significantly reducing inter-fiber and intra-fiber hydrogen bonding. The treated fibers can be readily dispersed and uniformly distributed throughout a mixture without re-clustering or reclumping once the mechanical mixing action stops. The chemically treated fibers with improved dispersibility improve the fiber distribution and reinforcing efficiency, which in turn improves key physical and mechanical properties of the material such as the modulus of rupture, z-direction tensile strength, and toughness, and surface finishes. With improved fiber reinforcing efficiency, less dosage of fiber is needed to achieve the required physical and mechanical properties.

    摘要翻译： 在一个实施方案中，纤维增强的建筑材料包含用分散剂进行化学处理的纤维素纤维，以赋予纤维更好的分散性。 纤维用分散剂处理，所述分散剂使纤维表面的羟基位点失活，并且在一些情况下使得纤维表面更具疏水性。 分散剂抑制纤维素纤维表面上的羟基与其它纤维的羟基键合，并与同一纤维的羟基键合，从而显着降低纤维间和纤维间氢键。 一旦机械混合作用停止，经处理的纤维可以容易地分散并均匀分布在整个混合物中，而不会重新聚集或重新开裂。 具有改进的分散性的经化学处理的纤维改善了纤维分布和增强效率，这又提高了材料的关键物理和机械性能，例如断裂模量，z方向拉伸强度和韧性以及表面光洁度。 随着纤维增强效率的提高，需要较少的纤维用量来达到所需的物理和机械性能。

    Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility
    3.
    发明授权
    Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility 有权
    纤维增强水泥复合材料使用化学处理的纤维具有改进的分散性

    公开(公告)号：US07344593B2

    公开(公告)日：2008-03-18

    申请号：US10090060

    申请日：2002-03-01

    申请人： Caidian Luo ,  Donald J. Merkley

    发明人： Caidian Luo ,  Donald J. Merkley

    IPC分类号： C04B16/02 ,  C04B16/06

    CPC分类号： C04B20/1018 ,  C04B18/24 ,  C04B18/241 ,  C04B20/0048 ,  C04B20/1051 ,  C04B20/107 ,  C04B28/02 ,  C04B2103/408 ,  C08L1/02 ,  D21C9/005 ,  Y02W30/97 ,  Y10T428/2938 ,  Y10T428/2965 ,  C04B20/023 ,  C04B20/026 ,  C04B40/0064 ,  C04B2103/40 ,  C04B24/42 ,  C04B24/121

    摘要： A fiber-reinforced building material in one embodiment incorporates cellulose fibers that are chemically treated with a dispersant to impart improved dispersibility to the fibers. The fibers are treated with a dispersant which deactivates the hydroxyl sites of the fiber surfaces and in some cases, making the fiber surface more hydrophobic. The dispersant inhibits the hydroxyl groups on the cellulose fiber surface from bonding with hydroxyl groups of other fibers and from bonding with hydroxyl groups of the same fiber, thereby significantly reducing inter-fiber and intra-fiber hydrogen bonding. The treated fibers can be readily dispersed and uniformly distributed throughout a mixture without re-clustering or reclumping once the mechanical mixing action stops. The chemically treated fibers with improved dispersibility improve the fiber distribution and reinforcing efficiency, which in turn improves key physical and mechanical properties of the material such as the modulus of rupture, z-direction tensile strength, and toughness, and surface finishes. With improved fiber reinforcing efficiency, less dosage of fiber is needed to achieve the required physical and mechanical properties.

    摘要翻译： 在一个实施方案中，纤维增强的建筑材料包含用分散剂进行化学处理的纤维素纤维，以赋予纤维更好的分散性。 纤维用分散剂处理，所述分散剂使纤维表面的羟基位点失活，并且在一些情况下使得纤维表面更具疏水性。 分散剂抑制纤维素纤维表面上的羟基与其它纤维的羟基键合，并与同一纤维的羟基键合，从而显着降低纤维间和纤维间氢键。 一旦机械混合作用停止，经处理的纤维可以容易地分散并均匀分布在整个混合物中，而不会重新聚集或重新开裂。 具有改进的分散性的经化学处理的纤维改善了纤维分布和增强效率，这又提高了材料的关键物理和机械性能，例如断裂模量，z方向拉伸强度和韧性以及表面光洁度。 随着纤维增强效率的提高，需要较少的纤维用量来达到所需的物理和机械性能。

    Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials
    6.
    发明授权
    Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials 有权
    用于减少纤维素纤维中杂质的方法和装置，用于制造纤维增强水泥复合材料

    公开(公告)号：US08133352B2

    公开(公告)日：2012-03-13

    申请号：US09970389

    申请日：2001-10-02

    申请人： Donald J. Merkley ,  Caidian Luo

    发明人： Donald J. Merkley ,  Caidian Luo

    IPC分类号： D21C5/02

    CPC分类号： E04C5/073 ,  C04B18/241 ,  C04B28/02 ,  C04B2111/00129 ,  D21C9/02 ,  Y02W30/91 ,  Y02W30/97 ,  C04B14/02 ,  C04B14/06 ,  C04B16/04 ,  C04B18/04 ,  C04B20/002 ,  C04B20/0048 ,  C04B40/0028 ,  C04B40/006 ,  C04B40/024 ,  C04B20/02

    摘要： A method of manufacturing high purity fiber cement grades of cellulose fibers is described. Additional washing steps, coupled with an elevated temperature, are used in the process to extensively wash the pulps and remove substantially all COD components remaining in the pulps. The pulps are counter-currently washed by diffusion and dewatering at elevated temperatures following the brown stock washer systems. During the additional washing steps, the pulps are soaked in counter-current heated water for a pre-determined time and some chemicals may be introduced to chemically break down the COD components in the pulps and to make them more soluble in the aqueous solution. The additional washing steps can be performed using existing equipment at conventional pulp mills. A formulation and a process of making fiber reinforced cement composite materials are also described using the low COD and high purity cellulose fibers. The pulps with lower COD contents have superior performance in manufacture of fiber reinforced cement composite materials. A smaller amount of the low COD and high purity fibers is needed to achieve the same reinforcement efficiency, compared to regular cellulose fibers.

    摘要翻译： 描述了制造高纯度纤维水泥级纤维素纤维的方法。 在该过程中使用额外的洗涤步骤以及升高的温度，以广泛地洗涤纸浆并除去残留在纸浆中的基本上所有的COD成分。 在棕色洗衣机系统之后，纸浆通过扩散和脱水在升高的温度下反向洗涤。 在额外的洗涤步骤期间，将纸浆浸泡在逆流加热的水中预定时间，并且可以引入一些化学品以化学分解纸浆中的COD成分并使其更易溶于水溶液。 额外的洗涤步骤可以使用现有的设备在常规纸浆厂进行。 还使用低COD和高纯度纤维素纤维来描述制备纤维增强水泥复合材料的制剂和方法。 具有较低COD含量的纸浆在纤维增强水泥复合材料的制造中具有优异的性能。 与常规纤维素纤维相比，需要较少量的低COD和高纯度纤维来实现相同的增强效率。

    Fiber cement composite materials using bleached cellulose fibers
    7.
    发明申请
    Fiber cement composite materials using bleached cellulose fibers 有权

    公开(公告)号：US20110248421A1

    公开(公告)日：2011-10-13

    申请号：US13066163

    申请日：2011-04-07

    申请人： Caidian Luo ,  Donald J. Merkley

    发明人： Caidian Luo ,  Donald J. Merkley

    IPC分类号： D04H1/72 ,  C04B16/02

    CPC分类号： C04B20/023 ,  C04B28/02 ,  Y02W30/97 ,  C04B18/24 ,  C04B18/248

    摘要： A fiber cement composite material that incorporates a blend of bleached and unbleached cellulose fibers as a partial or complete substitute for premium grade cellulose pulp is provided. Bleached standard grade cellulose fibers are used in conjunction with unbleached, standard grade cellulose fibers to provide a fiber cement composite product having substantially equal or even superior flexibility and strength as an equivalent fiber cement composite material reinforced by premium grade, unbleached cellulose fibers. A synergistic combination of bleached and unbleached standard grade cellulose fibers to produce a composite material with the desired properties previously achievable only through the use of premium grade cellulose pulp.