Dip on Fibers
母亲是żniejsze informacje
Application of an elastomer coating on an industrial fiber, also referred to as a “dip on fiber,” is an important component of special fiber applications, including technical, textile, and high performance fibers. Dip on fibers helps to improve several properties of a fiber, including reinforcement, wind stopping, and water repellant properties, depending on the final product’s needs. This coating can also be applied to clothing and rubber products, such as conveyor belts or car tires.
For special fiber applications, an elastomer coating, so-called dip, is necessary to improve the fiber’s proper-ties such as wind stopping, water repellent, and rein-forcement. Such additional properties also qualify the fibers for technical use, for example, for clothing and for rubber products like car tires or conveyor belts. Using the minispec, the dip amount on fibers can be quickly and accurately analyzed in a one-step measurement.
What is a Dip on Fiber?
纤维上的浸入基本上是一种表现出弹性特性的聚合物。通常，这些涂层由碳，硅，氧和氢组成。弹性涂层具有粘弹性以及非常低的分子间力。浸入纤维时，是密封，表现为粘合剂并保护物体柔韧性的涂层。有时，这些涂料可用于保护鞋底，盖轮胎，甚至隔离某些受控环境。
The amount of dip ranges between 5% and all the way up to 25% in weight, depending on the fibers, coatings, and applications. Applicable material for dip on fibers include:
- 技术，纺织和高性能纤维
- 多丝或单丝纤维
- 聚酯，聚酰胺，聚丙烯，聚乙烯，聚丙烯腈纤维
Cechy Charakterystyczne
特征
- 很少需要校准标准（3 - 5）
- „„独立于样品颜色或表面„„„„
- <60秒的一步测量保证„„„
- 由于出色的磁铁和磁铁温度稳定性，给出了高可重现性
Korzyści
Benefits
Bruker’s mqOne minispec can quickly and accurately analyze the dip amount on fibers in a one-step measurement. Typically, the application dip coated on fibers is based on varying relaxation times of the fiber and the dip. To analyze the dip amount with mqOne system, the fiber sample is first weighed in a tube to determine the sample mass. The system measures the decay of the time-domain (TD) NMR signal of the coated fiber. The dip signal is separated from the fiber signal, with the amplitude correlating with the dip amount.
The Bruker’s minispec system offers several advantages over other analytical methods, such as wet chemical analyses, near infrared, and gravimetry. One benefit of the mqOne system for analyzing dip on fibers is that very few calibration standards or necessary. Additionally, the system offers a one-step measurement in a guaranteed timeframe of <60 seconds. The mqOne also offers a high level of reproducibility, primary due to excellent magnet and magnet temperature stability.
aplikacje
应用程序
For analyzing the dip on nylon fibers, 5 samples of known dip contents were measured for calibration. For each sample two replicates were prepared. The 18 mm sample tubes of the minispec mq20 Spin Finish Analyzer were filled with approximately 5 g of the sample and were tempered at 40°C prior to measure-ments. The reference values were determined using gravimetry. The comparison between TD-NMR and gravimetry is remarkable: the results are almost equal to the reference values, see figure below
示例分析技术
In an analysis of the dip on nylon fibers, a total of 5 samples of known dip contents were measured for calibration. The operator prepared two replicates for each sample. Then, the operator filled 18 mm sample tubes of the mqOne Spin Finish Analyzer with around 5 grams of the dip sample. These tubes were tempered at 40 degrees Celsius. Gravimetry was used to determine the reference values. Then, a comparison was made between the TD-NMR and gravimetry, which revealed roughly equal results to the reference values.
分析纤维上的倾斜
Analysis of dip on fibers can be important to determine whether or not the product is appropriately sealed and/or coated prior to release to market. While it’s an important part of the manufacturing process, determining the appropriate levels of dip on fibers is not always easy. In some situations, the analysis of coating levels needs to be accomplished quickly and continuously, which warrants the need for improved methods of assessment.
布鲁克（Bruker）易于操作的MQONE ANALYZER系统是一个平台，可用于分析各种纤维和产品中的纤维浸入。该系统既有校准验证和校准转移样品。对于大多数应用来说，很少需要校准样品，因为在大多数情况下，仅需要3至5个校准样品。总体而言，整个工作流程 - 从称重空样品管到产生结果报告 - 在不到5分钟的时间内，取决于应用程序。
SpecyFikaCje
规格
- minispec mq-one Spin Finish Analyzer for routine
- „„ Minispec MQ20用于研发和常规
- „„具有完全可追溯数据的多语言M+软件
- „„玻璃或Teflon®管„„„
- 与自动重量转移到Minispec软件„„„„平衡
- Metal block thermostat for sample pre-tempering (optional)
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