PBO Fibers with Improved Mechanical Properties when Exposed to High Temperatures and High Relative Humidity
    2.
    发明申请
    PBO Fibers with Improved Mechanical Properties when Exposed to High Temperatures and High Relative Humidity 有权
    PBO纤维在暴露于高温和高相对湿度时具有改进的机械性能

    公开(公告)号:US20150067940A1

    公开(公告)日:2015-03-12

    申请号:US14391984

    申请日:2013-04-11

    摘要: A method of treating fibers to improve resistance to high temperatures and relative humidity includes providing poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers, exposing the PBO fibers to an atmosphere of supercritical CO2 saturated with an epoxy silane, i.e. 3-glycidoxypropyl methyldimethoxysilane. The PBO fibers are subjected to a first pressurizing and heating stage at a first temperature (50° C.) for a first period of time. The PBO fibers are then subjected to a second pressurizing and heating stage including increasing the temperature to a second temperature (110° C.) and holding at the second temperature for an additional period of time. The PBO fibers include 2-5 wt % of 3-glycidoxypropyl methyldimethoxysilane after diffusing the CO2 out of the PBO fibers. The fibers are particularly useful in making lightweight body armor system components.

    摘要翻译: 处理纤维以改善耐高温和相对湿度的方法包括提供聚(对亚苯基-2,6-苯并双恶唑)(PBO)纤维,将PBO纤维暴露于用环氧硅烷饱和的超临界CO 2气氛中,即 3-环氧丙氧基丙基甲基二甲氧基硅烷。 PBO纤维在第一温度(50℃)下经受第一加压和加热阶段第一段时间。 然后将PBO纤维进行第二加压和加热阶段,包括将温度升高至第二温度(110℃),并在第二温度下保持另外的时间。 PBO纤维在将CO 2从PBO纤维中扩散出来之后,包括2-5重量%的3-缩水甘油氧基丙基甲基二甲氧基硅烷。 纤维在制造轻量级的装甲系统部件中特别有用。

    PBO fibers with improved mechanical properties when exposed to high temperatures and high relative humidity
    7.
    发明授权
    PBO fibers with improved mechanical properties when exposed to high temperatures and high relative humidity 有权
    当暴露于高温和高相对湿度时,PBO纤维具有改善的机械性能

    公开(公告)号:US09279214B2

    公开(公告)日:2016-03-08

    申请号:US14391984

    申请日:2013-04-11

    摘要: A method of treating fibers to improve resistance to high temperatures and relative humidity includes providing poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers, exposing the PBO fibers to an atmosphere of supercritical CO2 saturated with an epoxy silane, i.e. 3-glycidoxypropyl methyldimethoxysilane. The PBO fibers are subjected to a first pressurizing and heating stage at a first temperature (50° C.) for a first period of time. The PBO fibers are then subjected to a second pressurizing and heating stage including increasing the temperature to a second temperature (110° C.) and holding at the second temperature for an additional period of time. The PBO fibers include 2-5 wt % of 3-glycidoxypropyl methyldimethoxysilane after diffusing the CO2 out of the PBO fibers. The fibers are particularly useful in making lightweight body armor system components.

    摘要翻译: 处理纤维以改善耐高温和相对湿度的方法包括提供聚(对亚苯基-2,6-苯并双恶唑)(PBO)纤维,将PBO纤维暴露于用环氧硅烷饱和的超临界CO 2气氛中,即 3-环氧丙氧基丙基甲基二甲氧基硅烷。 PBO纤维在第一温度(50℃)下经受第一加压和加热阶段第一段时间。 然后将PBO纤维进行第二加压和加热阶段,包括将温度升高至第二温度(110℃),并在第二温度下保持另外的时间。 PBO纤维在将CO 2从PBO纤维中扩散出来之后,包括2-5重量%的3-缩水甘油氧基丙基甲基二甲氧基硅烷。 纤维在制造轻量级的装甲系统部件中特别有用。