Pulsed electron beam curing of polymer coatings
Pulsed electron beam curing of polymer coatings
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聚合物涂料的脉冲电子束固化
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
K. B. Richter
中科院分区：
文献类型：
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作者：
K. B. Richter
正如韦斯和邓恩（2002）在一项开创性工作中所表明的那样，脉冲电子束（PEB）固化比连续电子束固化显著更节能、更快速。它利用能量沉积的内在异质性沿着电子轨道划分自由基引发位点，从而抑制二级终止反应，有利于一级传播。因此，适当定时的脉冲允许在单相中进行非均相聚合，从而能够以相对高的工艺速度在线固化来自单体的聚合物涂层。这超出了传统电子束的能力。
Pulsed electron beam (PEB) curing is significantly more energy efficient and speedy than continuous EB curing, as Weiss and Dunn (2002) showed in a pioneering work. It exploits the inherently heterogeneous nature of energy deposition along electron tracks to compartmentalize free radical initiation sites, thereby suppressing second-order termination reactions in favor of first-order propagation. Appropriately timed pulses thus allow heterogeneous polymerization in a single phase, enabling in-line curing of polymeric coatings from monomers at relatively high process speeds. That is beyond the capabilities of conventional electron beams.