可用于PμSL 3D打印的高强度苯并恶嗪

版块：机械制造类型：普通作者：化工产业技术分享查看：77 回复：0 获赞：0 时间：2022-05-18 18:06:59

聚苯并恶嗪（polybenzoxazines，PBZs），是一类高性能热固性酚醛塑料。因其优异的热稳定性、力学性能、高的残碳率、优异的阻燃性、低吸水率、简直为零的体积缩短率，使得PBZs在很多范畴都有广泛的运用，例如防腐涂层、电子、航空复合资料、混纺纤维以及合金等。但是，PBZs自身比较脆，而且因其高的固化温度（一般为180-250 ℃）而导致加工性差。此外，惯例的制备工艺例如挤出和熔融都非常难制备杂乱的PBZs结构，这也大大约束了其进一步的运用。

3D打印技能是一种立异性的资料加工技能，可打破资料约束完成传统加工方法难以制备的三维杂乱结构。在很多3D打印技能中，根据光聚合的面投影微立体光刻（PμSL）3D打印技能因其制备的结构具有高精度和细小的细节尺度的特色而广受重视。进一步地，经过将上述光固化3D打印技能与热固化处理相结合，可有用完成具有杂乱三维结构的高性能功用化器材。

根据上述布景，南洋理工大学胡晓课题组规划并合成了低粘度的可光固化苯并恶嗪（Benzoxazine，BZs），并运用PμSL 3D打印技能完成了三维杂乱结构的成型。开始研讨结果表明，制备所得的双固化PBZs具有很高的玻璃化转变温度Tg（264 ℃）和曲折模量（4.91 GPa

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<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, " helvetica="" sans="" yahei="" font-size:="" letter-spacing:="" text-align:="" white-space:="" background-color:="" text-indent:="" line-height:="" box-sizing:="" border-box="" overflow-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">聚苯并恶嗪（<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">polybenzoxazines<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">，<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">PBZs<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">），是一类高性能热固性酚醛塑料。因其优异的热稳定性、力学性能、高的残碳率、优异的阻燃性、低吸水率、简直为零的体积缩短率，使得<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">PBZs<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">在很多范畴都有广泛的运用，例如防腐涂层、电子、航空复合资料、混纺纤维以及合金等。但是，<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">PBZs<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">自身比较脆，而且因其高的固化温度（一般为<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">180-250 ℃<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">）而导致加工性差。<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">此外，惯例的制备工艺例如挤出和熔融都非常难制备杂乱的<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">PBZs<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">结构，这也大大约束了其进一步的运用。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, " helvetica="" sans="" yahei="" font-size:="" letter-spacing:="" text-align:="" white-space:="" background-color:="" text-indent:="" line-height:="" box-sizing:="" border-box="" overflow-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, " helvetica="" sans="" yahei="" font-size:="" letter-spacing:="" text-align:="" white-space:="" background-color:="" text-indent:="" line-height:="" box-sizing:="" border-box="" overflow-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">3D<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">打印技能是一种立异性的资料加工技能，可打破资料约束完成传统加工方法难以制备的三维杂乱结构。在很多<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">3D<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">打印技能中，根据光聚合的面投影微立体光刻（<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">PμSL<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">）<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">3D<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">打印技能因其制备的结构具有高精度和细小的细节尺度的特色而广受重视。进一步地，经过将上述光固化<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">3D<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">打印技能与热固化处理相结合，可有用完成具有杂乱三维结构的高性能功用化器材。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, " helvetica="" sans="" yahei="" font-size:="" letter-spacing:="" text-align:="" white-space:="" background-color:="" text-indent:="" line-height:="" box-sizing:="" border-box="" overflow-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, " helvetica="" sans="" yahei="" font-size:="" letter-spacing:="" text-align:="" white-space:="" background-color:="" text-indent:="" line-height:="" box-sizing:="" border-box="" overflow-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">根据上述布景，南洋理工大学胡晓课题组规划并合成了低粘度的可<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">光固化苯并恶嗪（<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">Benzoxazine<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">，<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">BZs<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">），并运用<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">PμSL 3D<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">打印技能完成了三维杂乱结构的成型。开始研讨结果表明，制备所得的双固化<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">PBZs<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">具有很高的玻璃化转变温度<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">Tg<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">（<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">264 ℃<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">）和曲折模量（<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">4.91 GPa<span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; line-height: 24px; font-family: 宋体; color: black; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; box-sizing: border-box !important; overflow-wrap: break-word !important;">

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