FIBERS OF UHMWPE AND A PROCESS FOR PRODUCING THEREOF
    7.
    发明申请
    FIBERS OF UHMWPE AND A PROCESS FOR PRODUCING THEREOF 有权
    UHMWPE纤维及其生产工艺

    公开(公告)号:US20100286728A1

    公开(公告)日:2010-11-11

    申请号:US12681700

    申请日:2008-10-06

    摘要: The invention relates to a process for producing gel-spun ultra high molecular weight polyethylene (UHMWPE) fibres having high tensile strengths and improved creep rates wherein the UHMWPE used in said process is characterized by a difference in the phase angle according to Formula (1) Δδ=δ0.001−δ100 of at most 42°, wherein δ0.001 is the phase angle at an angular frequency of 0.001 rad/sec; and δ100 is the phase angle at an angular frequency of 100 rad/sec as measured with a frequency sweep dynamic rheological technique at 150° C. on a 10% solution of UHMWPE in paraffin oil, provided that δ100 is at most 18°. The invention further relates to gel-spun UHMWPE fibres produced thereof. The gel-spun UHMWPE fibres of the invention have a tensile strength of at least 4 GPa, and a creep rate of at most 5×10−7 sec−1 as measured at 70° C. under a load of 600 MPa. The gel-spun UHMWPE fibres produced thereof are useful in a variety of applications, the invention relating in particular to ropes, medical devices, composite articles and ballistic-resistant articles containing said UHMWPE fibres.

    摘要翻译: 本发明涉及一种制备具有高拉伸强度和改进的蠕变速率的凝胶纺超高分子量聚乙烯(UHMWPE)纤维的方法,其中在所述方法中使用的UHMWPE的特征在于根据式(1)的相位角的差异, &Dgr;δ=δ0.001-δ100至多42°,其中δ0.001是角度频率为0.001rad / sec的相位角; 而δ100是在150℃下用UHMWPE在石蜡油中的10%溶液进行频率扫描动态流变学技术测量的角度频率为100rad / sec的相位角,条件是δ100至多为18°。 本发明还涉及其生产的凝胶纺丝UHMWPE纤维。 本发明的凝胶纺丝UHMWPE纤维的拉伸强度至少为4GPa,蠕变速率在70℃,600MPa的载荷下测得的最大为5×10-7秒-1。 其生产的凝胶纺丝UHMWPE纤维可用于各种应用中,本发明特别涉及包含所述UHMWPE纤维的绳索,医疗装置,复合制品和防弹制品。

    Fibers of UHMWPE and a process for producing thereof
    10.
    发明授权
    Fibers of UHMWPE and a process for producing thereof 有权
    UHMWPE的纤维及其制造方法

    公开(公告)号:US09005753B2

    公开(公告)日:2015-04-14

    申请号:US12681700

    申请日:2008-10-06

    IPC分类号: D01D5/12 D01F6/04 D01D5/04

    摘要: The invention relates to a process for producing gel-spun ultra high molecular weight polyethylene (UHMWPE) fibres having high tensile strengths and improved creep rates wherein the UHMWPE used in said process is characterized by a difference in the phase angle according to Formula (1) Δδ=δ0.001−δ100 of at most 42°, wherein δ0.001 is the phase angle at an angular frequency of 0.001 rad/sec; and δ100 is the phase angle at an angular frequency of 100 rad/sec as measured with a frequency sweep dynamic rheological technique at 150° C. on a 10% solution of UHMWPE in paraffin oil, provided that δ100 is at most 18°. The invention further relates to gel-spun UHMWPE fibres produced thereof. The gel-spun UHMWPE fibres of the invention have a tensile strength of at least 4 GPa, and a creep rate of at most 5×10−7 sec−1 as measured at 70° C. under a load of 600 MPa. The gel-spun UHMWPE fibres produced thereof are useful in a variety of applications, the invention relating in particular to ropes, medical devices, composite articles and ballistic-resistant articles containing said UHMWPE fibres.

    摘要翻译: 本发明涉及一种制备具有高拉伸强度和改进的蠕变速率的凝胶纺超高分子量聚乙烯(UHMWPE)纤维的方法,其中在所述方法中使用的UHMWPE的特征在于根据式(1)的相位角的差异, &Dgr;δ=δ0.001-δ100至多42°,其中δ0.001是角度频率为0.001rad / sec的相位角; 而δ100是在150℃下用UHMWPE在石蜡油中的10%溶液进行频率扫描动态流变学技术测量的角度频率为100rad / sec的相位角,条件是δ100至多为18°。 本发明还涉及其生产的凝胶纺丝UHMWPE纤维。 本发明的凝胶纺丝UHMWPE纤维的拉伸强度至少为4GPa,蠕变速率在70℃,600MPa的载荷下测得的最大为5×10-7秒-1。 其生产的凝胶纺丝UHMWPE纤维可用于各种应用中,本发明特别涉及包含所述UHMWPE纤维的绳索,医疗装置,复合制品和防弹制品。