EVA交联度测试系统(光伏行业专用)价格
EVA交联度测试系统(光伏行业专用)价格
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    商铺名称:上海标卓科学仪器有限公司

    联系人:王经理()

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    联系地址:中国上海奉贤区 上海市奉贤区扶港路1088号2幢1218室

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      上海标卓科学仪器有限公司15002100776<\/strong><\/span>是仪器仪表行业的新锐企业,检测仪器设备的生产、销售、维修、计量管理于一体的综合型公司。公司生产整套完整的精密测量仪器及相关解决方案,并代理、经销国内外几百家知名品牌的检测仪器和机械设备。主要涉及:机械设备检测仪器、长度类、力学类、电学类、试验类、光学类、精密量仪类、无损测试、理化分析、教学仪器、专用量仪及环境试验设备仪器等等系列,销售产品达成千上万多种,为企业质量管理及企业认证提供完善硬件设备的一条龙服务。 <\/span><\/span>
      <\/span> <\/span>
          <\/span><\/span> <\/span>公司一直推行:同质量比价格、同价格高质量的经营理念,赢得了广大用户的普遍赞誉和支持。建立了完善的营销服务网络与服务体系!公司拥有雄厚的资金实力和售前、售中、售后的技术服务力量,始终以“<\/span>热诚服务、务实进取、奋发开拓\"<\/span>的原则作为发展宗旨,以“<\/span>顾客始终满意\"<\/span>为目标与您携手共进!<\/span><\/span><\/font><\/p>

       <\/span><\/font><\/p>

      联系人:王经理<\/span><\/strong><\/span><\/font><\/p>

      手机  <\/span>15002100776<\/span><\/strong><\/span><\/font><\/p>

      联系电话:021-61523869<\/span><\/strong><\/span><\/font><\/p>

      地址:    <\/span><\/span>上海闵行区向阳工业园颛兴东路1528<\/span>号<\/span><\/strong><\/span><\/font><\/p>

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         <\/span>术   <\/span>方   <\/span>案   <\/span>书 <\/span><\/strong><\/span><\/p>

      产品名称:<\/span>EVA<\/span>交联度测试系统<\/span><\/span><\/u><\/p>


      <\/p><\/span><\/b>

       <\/b><\/p>

      一、<\/span><\/b>eva<\/span><\/b>交联度产品介绍:<\/span><\/b><\/span><\/p>

      仪器<\/span><\/b>:<\/span><\/b>*大口圆底烧瓶及塞子。用磨口或软木塞连接。如进行<\/span>1~2<\/span>只样品测定以<\/span>500mL<\/span>为宜;如进行<\/span>2~3<\/span>只样品测定以<\/span>1000mL <\/span>为宜;如进行数只但不超过<\/span>6<\/span>只则以<\/span>2000mL<\/span>的烧瓶较为适用。<\/span><\/span><\/p>

      *加热套或恒温油槽。要求热容量足以加沸二甲苯(沸点为<\/span>135~144<\/span>°<\/span>C<\/span>)。<\/span><\/span><\/p>

      *回流冷凝管。带磨口或以软木塞和烧瓶连接,冷凝管磨口尺寸与圆底烧瓶的磨口尺寸一致,长度适当。<\/span><\/span><\/p>

      *支架和夹子。用于固定烧瓶和冷凝管。<\/span><\/span><\/p>

      *真空烘箱。附带能产生<\/span>0.87MPa<\/span>真空度的真空源。<\/span><\/span><\/p>

      *<\/span>120<\/span>目不锈钢网<\/span><\/span><\/p>

      *精度为<\/span>1/10000<\/span>的托盘电子分析天平。<\/span><\/span><\/p>

      *干燥器<\/span><\/span><\/p>

      试剂<\/span><\/b><\/span><\/p>

      *二甲苯<\/span>A.R<\/span>,分析纯或化学纯。<\/span><\/span><\/p>

      *<\/span>2<\/span>,<\/span>6-<\/span>二叔丁基<\/span>-4-<\/span>甲基苯酚(即抗氧剂<\/span>264<\/span>)。<\/span><\/span><\/p>

      二、<\/span><\/b>eva<\/span><\/b>交联度实验方法:<\/span><\/b><\/span><\/p>

      1<\/span><\/b>、分析步骤<\/span><\/b><\/span><\/p>

      不锈钢网袋的制作:<\/span><\/b><\/span><\/p>

      *先将不锈钢网洗净,晾干,放入<\/span>100<\/span>℃<\/span>左右的烘箱烘干,冷却后截取<\/span>35<\/span>×<\/span>90mm<\/span>,对折成<\/span>35<\/span>×<\/span>45mm<\/span>的长方形,两侧边折进<\/span>7.5mm<\/span>钉住,制成顶端开口的袋(尺寸约<\/span>20<\/span>×<\/span>45mm<\/span>),并且要保证折起的两边钢好能被订书钉钉住,而且做好的试样袋要能放入烧瓶,尺寸不能太大。称重量为(<\/span>W1<\/sub><\/span>)。<\/span><\/span><\/p>

      2<\/span><\/b>、分析操作<\/span><\/b><\/span><\/p>

      *将已交联过的<\/span>EVA<\/span>胶样(在不同部位取样),用剪刀剪成小碎片,在<\/span>1/10000<\/span>电子天平式准确称取试样<\/span>0.1450~0.1500 g<\/span>准确到<\/span>0.0001g<\/span>,将样品放入已知重量的<\/span>120<\/span>目不锈钢网袋里,称(袋和试样)重(<\/span>W2<\/sub><\/span>)。<\/span><\/span><\/p>

      *将袋口折边钉上,构成试样包,称(袋和试样)重(<\/span>W3<\/sub><\/span>)。<\/span><\/span><\/p>

      *试样包用铜丝悬吊在回流装置的烧瓶中,以二甲苯为溶剂(溶剂要充足,<\/span>2000mL<\/span>烧瓶要装<\/span>1000g<\/span>溶剂;<\/span>1000mL<\/span>烧瓶要装<\/span>500g<\/span>溶剂)。沸腾回流<\/b><\/span>5h<\/span><\/b>一般回流速度为<\/b><\/span>20~40<\/span><\/b>滴<\/span><\/b>/<\/span><\/b>分<\/span><\/b>。(为防止试样的再度交联,加入溶剂重量<\/span>1%<\/span>左右的抗氧剂)冷却,取出试样袋(悬挂<\/b>起来,以除去过量的溶剂)后,再放入真空烘箱(温度<\/b><\/span>141<\/span><\/b>±<\/span><\/b>20<\/span><\/b>℃<\/span><\/b>,真空度<\/span><\/b>0.8MPa<\/span><\/b>)中烘<\/span><\/b>3h<\/span><\/b>,<\/span><\/b>取出试样袋于干燥器内冷却<\/b><\/span>15min<\/span><\/b>,取出称量(<\/span>W4<\/sub><\/span>)。<\/span><\/span><\/p>

      3<\/span><\/b>、计算<\/span><\/b><\/span><\/p>

      W1<\/sub><\/span>:三边封口一边开口的袋重。<\/span><\/span><\/p>

      W2<\/sub><\/span>:装有试样的袋重(三边封一边开口的袋)<\/span><\/span><\/p>

      W3<\/sub><\/span>:装有试样封口的袋重<\/span><\/span><\/p>

      W4<\/sub><\/span>:萃取并干燥后的试样袋重<\/span><\/span><\/p>

      4<\/span><\/b>、分析与结果<\/span><\/b><\/span><\/p>

      *通过多项实验,结果显示,不锈钢网袋和未交联的<\/span>EVA<\/span>树脂不会影响此分析方法的准确性。<\/span><\/span><\/p>

      *萃取时间<\/span>5h<\/span>后,交联度变化不大。<\/span><\/span><\/p>

      *交联剂用量增加,<\/span>EVA<\/span>的交联度也会上升,与实际工艺吻合。<\/span><\/span><\/p>

      5<\/span><\/b>、讨论<\/span><\/b><\/span><\/p>

      *本测试方法属溶剂萃取法。试样要在有代表性的不同部位取出。萃取剂要达到一定的沸腾程度,使起搅拌作用。所悬挂的试样袋底边,尽可能靠近瓶底,使之确保溶解。<\/span><\/span><\/p>

      *萃取剂二甲苯(含抗氧剂)可重复使用,直到浑浊为止,浑浊的萃取剂不必倒掉,可回收再用,回收率达<\/span>80~90%<\/span>。<\/span><\/span><\/p>

      *二甲苯是有毒、易燃溶剂,只能在通风柜内使用,要戴上防护用品,要小心操作。<\/span><\/span><\/p>

      *辅助用具:铜丝、订书钉、细铜丝、橡皮管、剪刀、镊子、老虎钳、针、橡胶手套、棉纱手套、<\/span>0~200<\/span>℃<\/span>的温度计,盘子。<\/span> <\/span><\/span><\/p>

      6<\/span><\/b>、结语<\/span><\/b><\/span><\/p>

      *使用此法,分析数据平行,不同试样的分析数据符合它的规律性,能满足工艺与应用上对交联度测定的需要,故本法是可行的。<\/span><\/span><\/p>

      *本测定方法同样适用于聚烯烃及其共聚物的交联度测定。<\/span><\/span><\/p><\/div>a交联度测试仪免费培训供应商,a交联度实验批发价格15002100776。a交联度测试仪的交联度测试方法生产厂家15002100776,a交联度测试仪免费培训哪家好,a交联度测试仪做,a交联度测试仪厂商15002100776!a交联度测试仪批发15002100776,a交联度测试仪免费培训多少钱15002100776,a交联度测试仪免费培训多少钱15002100776,a交联度测试仪免费培训批发价格15002100776。供应商!a交联度测试仪价格咨询批发价格15002100776。a交联度测试仪价格咨询厂家价格15002100776,a交联度测试仪供应商15002100776,多少钱15002100776,a交联度测试仪免费培训15002100776,a交联度测试仪免费培训供应商15002100776,a交联度测试仪厂商15002100776,a交联度测试仪免费培训批发15002100776,a交联度实验哪家好。a交联度实验批发,光伏专用,a交联度测试仪厂商。a交联度测试仪价格咨询厂家,a交联度测试仪价格咨询厂家价格15002100776,a交联度测试仪价格咨询哪家好15002100776。a交联度测试仪15002100776。光伏专用,a交联度测试仪的交联度测试方法,a交联度测试仪价格咨询厂商15002100776,a交联度测试仪的交联度测试方法批发价格15002100776,a交联度测试仪免费培训供应商15002100776,a交联度测试仪免费培训批发15002100776,厂家价格,a交联度测试仪价格咨询厂商15002100776,a交联度测试仪免费培训哪家好。a交联度测试仪免费培训厂家,a交联度测试仪免费培训15002100776。a交联度实验哪家好。a交联度实验。a交联度实验供应商15002100776。a交联度测试仪免费培训哪家好15002100776,a交联度实验生产厂家,a交联度测试仪厂商,a薄膜交联度测试仪,a交联度测试仪价格咨询批发价格,a交联度测试仪供应商15002100776,a交联度测试仪生产厂家,a交联度测试仪免费培训15002100776。a交联度实验哪家好15002100776,

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