Low fiber calcination process for making gypsum fiberboard
    7.
    发明授权
    Low fiber calcination process for making gypsum fiberboard 有权
    制作石膏纤维板的低纤维煅烧工艺

    公开(公告)号:US07918950B2

    公开(公告)日:2011-04-05

    申请号:US11962031

    申请日:2007-12-20

    IPC分类号: B32B3/18

    摘要: An energy efficient method for making a gypsum cellulose fiberboard comprising adding a first portion of cellulose fiber to gypsum before the gypsum and cellulose fiber are co-calcined in a reactor, adding a second portion of cellulose fiber to the slurry after it leaves the reactor to form a second slurry, depositing the slurry to form a mat, dewatering the mat, rehydrating the mat and then finishing the mat to form a final gypsum cellulose fiberboard. A reduction of up to about 40% to 50% of steam energy used can be achieved when the second portion of added cellulose fiber is 50% or more of the total cellulose fiber used in the final board compared to gypsum cellulose board made with the same ingredients but when all of the fiber is added to the gypsum prior to the reactor.

    摘要翻译: 一种用于制造石膏纤维素纤维板的能量效率方法,包括在石膏和纤维素纤维之前在石膏和纤维素纤维中将第一部分纤维素纤维添加到石膏中,在反应器中共煅烧,在离开反应器之后向浆料中加入第二部分纤维素纤维 形成第二浆料,沉积浆料以形成垫子,使垫脱水,将垫再水化,然后整理垫以形成最终的石膏纤维素纤维板。 当添加的纤维素纤维的第二部分与用相同的石膏纤维素板相比在最终板中使用的总纤维素纤维的50%或更多时,可以获得高达约40%至50%的蒸汽能量的减少 成分,但是当所有的纤维在反应器之前添加到石膏中时。

    Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility
    8.
    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

    IPC分类号: C04B16/02

    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 composition and products and manufacturing process
    9.
    发明申请
    Fiber reinforced cement composition and products and manufacturing process 审中-公开
    纤维增强水泥组合物及其制造工艺

    公开(公告)号:US20080072795A1

    公开(公告)日:2008-03-27

    申请号:US11527712

    申请日:2006-09-27

    IPC分类号: C04B14/00 C04B16/00

    摘要: The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is excellent in bending strength, dimensional stability and installation property such as handling property, flexibility performance and nail performance, as well as a process for manufacturing the product.Namely, the fiber reinforced cement composition comprises the following raw materials: a hydraulic inorganic material, a siliceous material and a woody reinforcement, wherein the siliceous material is a mixture of an average particle size of not less than 15 μm and not more than 50 μm which is burned ash of coal and/or rhyolite and an average particle size of not less than 1 μm and not more than 15 μm which is burned ash of coal and/or rhyolite.The effects of the present invention, it is possible to obtain a fiber reinforced cement product having good bending strength, dimensional stability and installation property such as handling property, flexibility performance and nail performance.

    摘要翻译: 本发明要解决的问题是提供一种用于获得纤维增强水泥制品的纤维增强水泥组合物,其弯曲强度,尺寸稳定性和安装性能如处理性能,柔韧性和指甲性能优异,以及 制造产品的过程。 也就是说,纤维增强水泥组合物包括以下原料:水硬性无机材料,硅质材料和木质增强材料,其中硅质材料是平均粒度不小于15μm且不大于50μm的混合物 其为煤和/或流纹岩的燃烧灰,平均粒径为不小于1mum且不大于15μm的煤和/或流纹岩的燃烧灰分。 本发明的效果,可以获得具有良好的弯曲强度,尺寸稳定性和安装性能如处理性能,柔韧性和指甲性能的纤维增强水泥制品。

    Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility
    10.
    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

    IPC分类号: C04B16/02 C04B16/06

    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。