Cathodic electrodeposition bath in the solvent content of less, but a direct impact on the water-soluble resin, stability, in the construction of electrophoretic paint affect the swimming ability, electroosmosis and leveling, control will lead to poor film thickness Stability, paint corrosion resistance decreased. Accurate determination of the solvent content of the bath is very important for both production and construction. Cathodic electrophoresis bath solvent mainly alcohols, ketones and glycol ethers.
In order to solve the problem that the chromatographic system is often contaminated by any sample pretreatment without any sample pretreatment for the determination of the solvent in the existing gas chromatograph, the advantages and disadvantages of the ten pretreatments of the solvent used in the cathodic electrophoretic paint were analyzed. . The method is accurate, accurate, simple, convenient and practical.
阴极电泳槽液中的溶剂含量较少,但直接影响树脂的水溶性、稳定性,在施工时影响电泳漆的泳透力、电渗作用及流平性等,控制不好将导致膜厚不稳定、漆膜耐蚀性降低。准确测定槽液中的溶剂含量对生产和施工来说都非常重要。阴极电泳槽液中的溶剂主要是醇、酮和乙二醇醚类。
为解决现有气相色谱法测定涂料中的溶剂时样品不作任何样品前处理,导致色谱体系常常被污染的问题,对比研究了用于气相色谱分析阴极电泳漆中溶剂的10种前处理的优劣。经回收率与精密度验证,该方法准确,精密度好,操作简单,方便快捷,较为实用。
XiangyingGC7990plus features:
1 excellent performance, competitive price, to meet the customers' choice
2 multi industry adaptability
3 outstanding performance in all kinds of harsh environment
INJ
A variety of sampling ports can be equipped with: packed column inlet, shunt / non shunt capillary inlet,
Hydrogen flame ionization detector (FID)
Maximum use temperature: 400
The minimum detection limit: -12 = 2.5*10 g/s (n-C16)
Linear range: 107 (+ 10%)
XiangyingGC7990plus特点：
- 卓越的性能，具有竞争力的价格，满足广大客户的选择
- 多行业适应性
3. 在各种苛刻环境下均表现出色
进样口
多种进样口可配：填充柱进样口、分流/不分流毛细管进样口、
氢火焰离子化检测器（FID）
***高使用温度：400℃
***小检出限：≤2.5*10 -12 g/s(n-C16)
线性范围：107（±10%）
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