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srcset=\"https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Ffd481449505b397023f17e5c3b8858fab41b35722b61e11bad5f720e5d39144c\u002F313.avif 313w\" sizes=\"100vw\">\u003Csource type=\"image\u002Fwebp\" srcset=\"https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Ffd481449505b397023f17e5c3b8858fab41b35722b61e11bad5f720e5d39144c\u002F313.webp 313w\" sizes=\"100vw\">\u003Cimg src=\"https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Ffd481449505b397023f17e5c3b8858fab41b35722b61e11bad5f720e5d39144c\u002F313.webp\" alt=\"UV打印机固化原理及固化过程（配图 1）\" width=\"313\" height=\"400\" loading=\"lazy\" decoding=\"async\">\u003C\u002Fpicture>\u003C\u002Ffigure>\n\u003Ch2>UV固化过程一般可分为以下五个阶段：\u003C\u002Fh2>\n\u003Cp>1、光引发剂吸收紫外光，成为激发态的光引发剂。\u003C\u002Fp>\n\u003Cp>2、激发态的光引发剂不稳定，易分解形成自由基。\u003C\u002Fp>\n\u003Cfigure>\u003Cpicture>\u003Csource type=\"image\u002Favif\" srcset=\"https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Fa3c3895982142a3c2a9a056629996a890bc0fd9c0127ecafcd49b3bd842a939d\u002F480.avif 480w, https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Fa3c3895982142a3c2a9a056629996a890bc0fd9c0127ecafcd49b3bd842a939d\u002F960.avif 960w, https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Fa3c3895982142a3c2a9a056629996a890bc0fd9c0127ecafcd49b3bd842a939d\u002F1440.avif 1440w\" sizes=\"100vw\">\u003Csource type=\"image\u002Fwebp\" srcset=\"https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Fa3c3895982142a3c2a9a056629996a890bc0fd9c0127ecafcd49b3bd842a939d\u002F480.webp 480w, https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Fa3c3895982142a3c2a9a056629996a890bc0fd9c0127ecafcd49b3bd842a939d\u002F960.webp 960w, https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Fa3c3895982142a3c2a9a056629996a890bc0fd9c0127ecafcd49b3bd842a939d\u002F1440.webp 1440w\" sizes=\"100vw\">\u003Cimg src=\"https:\u002F\u002Fservice-printer-files.oss-accelerate.aliyuncs.com\u002Fwebsite\u002Fimages\u002Fa3c3895982142a3c2a9a056629996a890bc0fd9c0127ecafcd49b3bd842a939d\u002F1440.webp\" alt=\"UV打印机固化原理及固化过程（配图 2）\" width=\"2268\" height=\"4032\" loading=\"lazy\" decoding=\"async\">\u003C\u002Fpicture>\u003C\u002Ffigure>\n\u003Cp>3、自由基与预聚物中的不饱和基团相互作用引发加成、交联或聚合反应，形成自由基中间体。\u003C\u002Fp>\n\u003Cp>4、自由基中间体通过链增长反应，得到长链或网状的高分子聚合物自由基中间体。\u003C\u002Fp>\n\u003Cp>5、长链或网状的高分子聚合物自由基中间体产生链终止反应，原来的液态组分转变为固体聚合物。\u003C\u002Fp>\n","UV固化是指在紫外光的照射下，光引发剂吸收紫外光的辐射能量后分裂成自由基，引发预聚物发生聚合、交联、接枝反应，在很短的时间内固化成网状高分子聚合物。由此使得UV涂料、油墨、黏合剂等在数秒内由液态转化为固态，形成图案。 UV固化过程一般可分为以下五个阶段： 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2018-11-30。","这篇新闻来自哪里？","UV固化是指在紫外光的照射下，光引发剂吸收紫外光的辐射能量后分裂成自由基，引发预聚物发生聚合、交联、接枝反应，在很短的时间内固化成网状高分子聚合物。由此使得UV涂料、油墨、黏合剂等在数秒内由液态转化为固态，形成图案。\n\n{{asset:2cb8d68e-365b-49c5-a8f7-42e00952f7a6}}\n\n## UV固化过程一般可分为以下五个阶段：\n\n1、光引发剂吸收紫外光，成为激发态的光引发剂。\n\n2、激发态的光引发剂不稳定，易分解形成自由基。\n\n{{asset:5d4638de-40a5-43f7-8b6d-aae7caa5dfc6}}\n\n3、自由基与预聚物中的不饱和基团相互作用引发加成、交联或聚合反应，形成自由基中间体。\n\n4、自由基中间体通过链增长反应，得到长链或网状的高分子聚合物自由基中间体。\n\n5、长链或网状的高分子聚合物自由基中间体产生链终止反应，原来的液态组分转变为固体聚合物。",[197],{"text":195,"type":198},"markdown",[200],{"text":135,"status":201,"source_ref":202,"needs_review":67},"supported","67ffe5d3-c2b7-4b3d-b4b2-a901cb6ba13d",{"tags":204,"models":205,"allow_steps":67,"safety_level":206,"knowledge_type":28},[],[],"caution",[208,210,212],{"name":209},"泰拓数码",{"name":211},"Taotech 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