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    • 1. 发明申请
    • METHOD FOR PRODUCING HYPERTHERMAL HYDROGEN MOLECULES AND USING SAME FOR SELECTIVELY BREAKING C-H AND/OR Si-H BONDS OF MOLECULES AT OR ON SUBSTRATE SURFACES
    • 用于生产高级氢分子的方法,并且使用它们在基底表面上或在基底表面上选择性地断裂C-H和/或Si-H分子
    • US20120061558A1
    • 2012-03-15
    • US13255038
    • 2010-03-03
    • Leo W.M. LauDe-Quan YangTomas TrebickyHeng Yong Nie
    • Leo W.M. LauDe-Quan YangTomas TrebickyHeng Yong Nie
    • H05H3/02
    • H05H3/02B05D3/007B05D3/068B05D3/145C01B3/00C01B3/02Y02E60/324
    • A method for producing hyperthermal molecular hydrogen is disclosed and use of same for selectively breaking C—H or Si—H bonds without breaking other bonds are disclosed. A hydrogen plasma is maintained and protons are extracted with an electric field to accelerate them to an appropriate kinetic energy. The protons enter into a drift zone to collide with molecular hydrogen in gas phase. The cascades of collisions produce a high flux of hyperthermal molecular hydrogen with a flux many times larger than the flux of protons extracted from the hydrogen plasma. The nominal flux ratio of hyperthermal molecular hydrogen to proton is controlled by the hydrogen pressure in the drift zone, and by the length of the drift zone. The extraction energy of the protons is shared by these hyperthermal molecules so that average energy of the hyperthermal molecular hydrogen is controlled by extraction energy of the protons and the nominal flux ratio. Since the hyperthermal molecular hydrogen projectiles do not carry any electrical charge, the flux of hyperthermal hydrogen can be used to engineer surface modification of both electrical insulating products and conductive products. When this method of generating a high flux of hyperthermal molecular hydrogen is applied to bombard organic precursor molecules (or silicone, or silane molecules) with desirable chemical functionality/functionalities on a substrate, the C—H or Si—H bonds are thus cleaved preferentially due to the kinematic selectivity of energy deposition from the hyperthermal hydrogen projectiles to the hydrogen atoms in the precursor molecules. The induced cross-linking reactions produce a stable molecular layer having a controllable degree of cross-linking and retaining the desirable chemical functionality/functionalities of the precursor molecules.
    • 公开了一种制备超热分子氢的方法,并公开了其用于选择性地破坏C-H或Si-H键而不破坏其它键的用途。 维持氢等离子体并用电场提取质子,以将其加速至适当的动能。 质子进入漂移区,与气相中的分子氢碰撞。 级联的碰撞产生高通量的超热分子氢,其通量比从氢等离子体提取的质子通量多大许多倍。 超热分子氢与质子的标称通量比由漂移区中的氢气压力和漂移区的长度来控制。 质子的提取能量由这些超热分子共享,使得超热分子氢的平均能量由质子的提取能量和标称通量比控制。 由于超热分子氢射弹不携带任何电荷,所以超热氢气流可用于工程电绝缘产品和导电产品的表面改性。 当产生高通量的超热分子氢的方法用于轰击在底物上具有理想的化学官能度/功能性的有机前体分子(或硅氧烷或硅烷分子)时,C-H或Si-H键优先被切割 这是由于从超热氢弹体到前体分子中的氢原子的能量沉积的运动选择性。 诱导的交联反应产生具有可控程度的交联并保持前体分子所需的化学官能度/功能的稳定的分子层。