GRAPHENE REINFORCED POLYETHYLENE TEREPHTHALATE

    公开(公告)号:US20170081482A1

    公开(公告)日:2017-03-23

    申请号:US15073477

    申请日:2016-03-17

    Abstract: A composition and a method are provided for graphene reinforced polyethylene terephthalate (PET). Graphene nanoplatelets (GNPs) comprising multi-layer graphene are used to reinforce PET, thereby improving the properties of PET for various new applications. Master-batches comprising polyethylene terephthalate with dispersed graphene nanoplatelets are obtained by way of compounding. The master-batches are used to form PET-GNP nanocomposites at weight fractions ranging between 0.5% and 15%. In some embodiments, PET and GNPs are melt compounded by way of twin-screw extrusion. In some embodiments, ultrasound is coupled with a twin-screw extruder so as to assist with melt compounding. In some embodiments, the PET-GNP nanocomposites are prepared by way of high-speed injection molding. The PET-GNP nanocomposites are compared by way of their mechanical, thermal, and rheological properties so as to contrast different compounding processes.

    Rubber composition and molded product
    176.
    发明授权
    Rubber composition and molded product 有权
    橡胶组合物和成型品

    公开(公告)号:US09593227B2

    公开(公告)日:2017-03-14

    申请号:US14652908

    申请日:2013-12-18

    Abstract: A rubber composition having extremely high electrical conductivity is provided. The rubber composition contains nitrile rubber (A) having an α,β-ethylenic unsaturated nitrile monomer unit and an iodine value of 100 or lower, and carbon nanotubes (B) having the average diameter (Av) and diameter distribution (3σ) that satisfy the following relational expression: 0.60>3σ/Av>0.20.

    Abstract translation: 提供具有极高导电性的橡胶组合物。 橡胶组合物含有具有α,β-烯属不饱和腈单体单元和碘值为100以下的丁腈橡胶(A)和平均直径(Av)和直径分布(3σ)满足的碳纳米管(B) 以下关系式:0.60>3σ/ Av> 0.20。

    Structural coatings with dewetting and anti-icing properties, and coating precursors for fabricating same
    178.
    发明授权
    Structural coatings with dewetting and anti-icing properties, and coating precursors for fabricating same 有权
    具有去湿和防冰性能的结构涂层,以及用于制造其的涂层前体

    公开(公告)号:US09546280B2

    公开(公告)日:2017-01-17

    申请号:US13708642

    申请日:2012-12-07

    Abstract: Variations of this invention provide durable, impact-resistant structural coatings that have both dewetting and anti-icing properties. The coatings in some embodiments possess a self-similar structure that combines a low-cost matrix with two feature sizes that are tuned to affect the wetting of water and freezing of water on the surface. Dewetting and anti-icing performance is simultaneously achieved in a structural coating comprising multiple layers, wherein each layer includes (a) a continuous matrix; (b) discrete templates dispersed that promote surface roughness to inhibit wetting of water; and (c) nanoparticles that inhibit heterogeneous nucleation of water. These structural coatings utilize low-cost, lightweight, and environmentally benign materials that can be rapidly sprayed over large areas using convenient coating processes. The presence of multiple layers means that if the surface is damaged during use, freshly exposed surface will expose a coating identical to that which was removed, for extended lifetime.

    Abstract translation: 本发明的变化提供耐久,耐冲击的结构涂层,其具有去湿和抗结冰性能。 一些实施例中的涂层具有自相似的结构,其将低成本矩阵与两个特征尺寸相结合,该特征尺寸被调谐以影响水的润湿和表面上的水的冻结。 在包括多层的结构涂层中同时实现脱水和防冰性能,其中每层包括(a)连续的基体; (b)分散的离散模板,其促进表面粗糙度以抑制水的润湿; 和(c)抑制水的异质成核的纳米颗粒。 这些结构涂料使用低成本,轻质和环保的材料,可以使用方便的涂层工艺快速喷涂在大面积上。 多层的存在意味着如果在使用过程中表面受损,新鲜曝光的表面将暴露与被去除的涂层相同的涂层,以延长使用寿命。

    HIGH-DENSITY POLYETHYLENE PREPARATION METHODS
    179.
    发明申请
    HIGH-DENSITY POLYETHYLENE PREPARATION METHODS 有权
    高密度聚乙烯制备方法

    公开(公告)号:US20170009049A1

    公开(公告)日:2017-01-12

    申请号:US14796885

    申请日:2015-07-10

    Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.

    Abstract translation: 通过使用二茂锆催化剂,甲基铝氧烷助催化剂,锆酸钾纳米填料在溶剂中原位聚合制备高密度聚乙烯(HDPE)纳米复合材料的方法。 发现分散在聚乙烯基质上的锆酸钙纳米填料可以提高催化剂的活性,并产生HDPE纳米复合材料的其它性能,包括但不限于阻燃性,结晶度和表面形态。

    DISPERSION AND METHOD FOR THE PRODUCTION THEREOF
    180.
    发明申请
    DISPERSION AND METHOD FOR THE PRODUCTION THEREOF 审中-公开
    分散体及其生产方法

    公开(公告)号:US20170008770A1

    公开(公告)日:2017-01-12

    申请号:US15276393

    申请日:2016-09-26

    Abstract: Dispersion and method for the production of same. In one embodiment, the dispersion consists of a dispersing liquid and at least one solid substance that is distributed in the dispersing liquid. In order to obtain a dispersion with particularly good properties, it is provided that the dispersing liquid has an aqueous and/or non-aqueous base, that the at least one solid substance is formed of graphite and/or of carbon nanomaterial and/or of coke and/or of porous carbon, and that the at least one solid substance is distributed homogeneously and stably in the dispersing liquid. A method for the production of such a dispersion is provided such that the dispersion is produced by applying a strong accelerating voltage. In addition, various advantageous uses of such a dispersion are indicated.

    Abstract translation: 分散体及其制造方法。 在一个实施方案中,分散体由分散液体和分散在分散液中的至少一种固体物质组成。 为了获得具有特别良好性能的分散体,规定分散液体具有水性和/或非水性基质,所述至少一种固体物质由石墨和/或碳纳米材料和/或 焦炭和/或多孔碳,并且所述至少一种固体物质均匀且稳定地分布在分散液中。 提供制造这种分散体的方法,使得通过施加强的加速电压来产生分散体。 另外,表示了这种分散体的各种有利用途。

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