丙烯酸树脂的生产工艺流程
发布日期：2018-11-13
阅读量：8662
1、投料：于反应釜中投入垫底原料；
2、升温及滴加：升温达到指定温度或者有回流（一般是达到垫底原料的沸点）时，通过高位槽滴加单体、溶剂及引发剂；
3、控温：这时丙烯酸树脂的反应较剧烈，需要控制温度在一个合理范围。
不可太高，太高则反应过于激烈，控制不好又涨溢现象。
不可低于合理温度范围，太低，反应不充分，做出丙烯酸树脂的分子量及性能都有很大影响。
4、保温：此阶段是让丙烯酸残留单体反应更加充分，此阶段的温度基本是缓慢下降阶段，适当加温进行保温，让残留单体与残留引发剂充分反应。
5、调粘及测固含：调整粘度到指定范围，检测固含等指标。
6、冷却，包装：指标合格后，冷却降温至80度以下，包装。
丙烯酸树脂合成常用的设备如下：
1：配料罐→滴加罐→反应釜→卧式冷凝器→分水器→过滤器等
2：搅拌系统：一般选用锚框式和一字浆组合使用。
3：称重投料，滴加控制真确。
专栏：技术交流
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The following has evaluated to null or missing:
==> langConfig [in template "public_include/wap/module/version_1/language.html" at line 49, column 14]
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Tip: If the failing expression is known to be legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
- Failed at: #if langConfig.status?string = "false" [in template "public_include/wap/module/version_1/language.html" at line 49, column 9]
- Reached through: #include "/public_include/wap/module/... [in template "tpl/2018/03/17/2613443926933696//wap/com_5.html" at line 5, column 1]
- Reached through: #include "com_5.html" [in template "tpl/2018/03/17/2613443926933696//wap/displaynews.html" at line 69, column 6]
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Java stack trace (for programmers):
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freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...]
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at freemarker.core.UnexpectedTypeException.newDesciptionBuilder(UnexpectedTypeException.java:80)
at freemarker.core.UnexpectedTypeException.<init>(UnexpectedTypeException.java:43)
at freemarker.core.NonHashException.<init>(NonHashException.java:49)
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at freemarker.core.Environment.include(Environment.java:2509)
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at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at com.kenfor.iyong.web.util.filter.NotAllowedToTunFilesFilter.doFilter(NotAllowedToTunFilesFilter.java:154)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at com.kenfor.iyong.web.util.filter.InvalidXSSFilter.doFilter(InvalidXSSFilter.java:40)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
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at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve.invoke(RedisSessionHandlerValve.java:26)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
at org.apache.coyote.ajp.AbstractAjpProcessor.process(AbstractAjpProcessor.java:873)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:687)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
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at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)