納米碳對環(huán)氧樹脂固化的影響
3.2.1剪切混合攪拌
使用DISPERMAT®CNF2型號的剪切混合攪拌機(jī)將碳納米顆粒分散在液體環(huán)氧體系中。 緊湊型驅(qū)動單元包含三相電機(jī)和單獨(dú)驅(qū)動的低噪音通風(fēng)。中央夾緊系統(tǒng) - 安全裝置的一部分 - 提供了一種安全且簡單的方法，可將分散容器牢固地固定到位。容器放置在夾臂之間的實(shí)驗(yàn)室工作臺上，并在臂被擰緊時自動置中?？刂泼姘逵幸粋€數(shù)字顯示屏，允許操作員在速度，扭矩或時間值之間自由切換。安全設(shè)備功能也顯示在數(shù)字顯示屏上(參見圖3.4)。
圖3.4：用于分散的DISPERMAT®CNF2高剪切混合器
Hyperion多壁碳納米管和炭黑顆粒
剪切混合攪拌過程取決于剪切螺旋槳距液體表面的距離。螺旋槳通常放置在距離漿料底部的填充樹脂總高度的近2/3處。該規(guī)范允許碳納米顆粒在環(huán)氧系統(tǒng)中更好地混合和均勻分布。通過在樹脂中引入碳納米顆粒，然后添加固化劑來進(jìn)行混合攪拌過程。 高剪切混合器用于將Hyperion多壁碳納米管和炭黑顆粒摻入MY 750 / HY 5922樹脂體系中。
3.2.1剪切混合攪拌
使用DISPERMAT®CNF2型號的剪切混合攪拌機(jī)將碳納米顆粒分散在液體環(huán)氧體系中。 緊湊型驅(qū)動單元包含三相電機(jī)和單獨(dú)驅(qū)動的低噪音通風(fēng)。中央夾緊系統(tǒng) - 安全裝置的一部分 - 提供了一種安全且簡單的方法，可將分散容器牢固地固定到位。容器放置在夾臂之間的實(shí)驗(yàn)室工作臺上，并在臂被擰緊時自動置中。控制面板有一個數(shù)字顯示屏，允許操作員在速度，扭矩或時間值之間自由切換。安全設(shè)備功能也顯示在數(shù)字顯示屏上(參見圖3.4)。
圖3.4：用于分散的DISPERMAT®CNF2高剪切分散機(jī)
Hyperion多壁碳納米管和炭黑顆粒
剪切混合攪拌過程取決于剪切螺旋槳距液體表面的距離。螺旋槳通常放置在距離漿料底部的填充樹脂總高度的近2/3處。該規(guī)范允許碳納米顆粒在環(huán)氧系統(tǒng)中更好地混合和均勻分布。通過在樹脂中引入碳納米顆粒，然后添加固化劑來進(jìn)行混合攪拌過程。 高剪切混合器用于將Hyperion多壁碳納米管和炭黑顆粒摻入MY 750 / HY 5922樹脂體系中。
Effect of carbon nanoparticle addition on epoxy cure
3.2.1 Shear mixing
A DISPERMAT® CN F2 model shear mixer was used to disperse the carbon nanoparticles in the liquid epoxy system. The compact drive unit contains a three phase motor and separately driven low noise ventilation. The central clamping system – part of the safety device – offers a safe and simple way of holding the dispersion container securely in position. The container is placed on the laboratory bench between the clamping arms and is automatically centered as the arms are tightened. The control panel has a digital display which allows the operator to switch between values for speed, torque or time. The safety device functions are also indicated on the digital display (see figure 3.4).
Figure 3.4: DISPERMAT® CN F2 high shear mixer used to disperse the Hyperion multi-walled carbon nanotubes and carbon black particles
The shear mixing process depends on the distance of the shear propeller from the surface of the liquid batch. The propeller is usually placed at a distance of almost 2/3 of the total height of the filled resin from the bottom of the batch. This specification allows for a better mixing and an even distribution of the carbon nanoparticles in the epoxy system. The mixing process takes place with the incorporation of carbon nanoparticles in the resin, and then the addition of the curing agent. The high shear mixer was utilised for the incorporation of Hyperion multiwalled carbon nanotubes and carbon black particles into the MY 750 / HY 5922 resin system.
