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解决方案
流变学在润滑油脂行业的应用
应用领域
石油/化工检测样品
其他检测项目
粘度、触变性、屈服应力、粘触性稠厚的油脂状半固体。用于机械的摩擦部分，起润滑和密封作用。也用于金属表面，起填充空隙和防锈作用。主要由矿物油（或合成润滑油）和稠化剂调制而成。
流变学在润滑油脂类样品的应用主要有几个方面，粘度及粘度随温度的变化，触变性，屈服应力和粘触性等。
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哈克流变仪在胶黏剂行业的应用
应用领域
石油/化工检测样品
胶黏剂助剂检测项目
固化过程胶黏剂种类非常多，按照特性分类一般有热熔胶、环氧胶，电子胶、UV固化胶、聚氨酯胶、硅胶等。胶黏剂的流变学性能一直是影响其配方，工艺及使用性能的一个重要因素。胶黏剂的流变学性能研究主要有以下几个方面。
基本流动性能，流动曲线和粘度曲线
屈服应力
触变性
固化过程研究，包括热固化和紫外固化
热机械性能，包括确定玻璃化转变温度，损耗因子等
在上述胶黏剂流变学性能表征中，哈克流变仪配备丰富的测量单元可以向用户提供完整的解决方案，从宏观性能到微观信息。
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赛默飞化学分析制药解决方案应用案例分享
应用领域
制药/生物制药检测样品
检测项目
热熔挤出赛默飞化学分析事业部集成了行业内领先的分子光谱技术，台式核磁共振波谱技术，热熔挤出技术以及X射线能谱技术
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MIM新料和回料混合物的密炼机试验
应用领域
检测样品
检测项目
在MIM（金属粉末注射成型）工艺中，尤其是小型零件，会产
生大量的浇口。为尽量减少浪费，浇口经碾磨后与新料混合使用。
该方法对回料量有一定的限制，因为随着回料量持续增加，无法
在不损坏部件的情况下实现零件的脱模。
可以使用配备小型密炼机的转矩流变仪区分未经使用的新料与
研磨后的回料。在接下来的步骤中，对各种未经使用的新料与
研磨后的回料混合物进行试验以便测定混合物的最大回料量。
未经使用的新料与研磨后的回料在流变图（密炼机曲线）中有很
大差异。研磨后的回料量增加时，未经使用的新料与研磨后的回
料混合物的流变图，从未经使用的新料曲线移至纯研磨后回料曲
线。在工艺温度下进行密炼机试验有助于确定最佳混合物，同时
还可以避免产生有缺陷零件。
暂无关联产品
剪切应力对凝胶过程的影响
应用领域
检测样品
检测项目
Based on the degree of automation possible with HAAKE RheoWin, only
a minimum of working time is needed to prepare and start a complex test program like the one described in this report. It is therefore suitable for the time-effective determination of the optimum testing conditions. Only if the gelation is not influenced by the test conditions, significant results can be generated, which describe the gelation
process under production conditions correctly.
暂无关联产品
同步进行热固化和UV固化表征的新技术
应用领域
检测样品
检测项目
通常表征热固化或UV固化动力学的过程只能在相应的装置上进行，没有应对同时固化的附件。哈克MARS流变仪最新UV curing tool for CTC oven解决了这一难题，请看具体内容。
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稀土磁性塑料注射成型技术研究
应用领域
检测样品
检测项目
应用HAAKE转矩流变仪，研究了尼龙6质量分数为7％时，稀土磁性塑料的加工工艺性能。结果表明：稀土磁性塑料喂料体系的润滑剂能有效地降低喂料熔体流动粘度，改善加工条件；而偶联剂会恶化其加工性能；磁粉的粒径分布对原料的粘度和加工工艺有明显的影响，35～65 ITI的磁粉粒度有利于成型加工；制得了较好综合性能的稀土钕铁硼塑料磁体。
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哈克转矩流变仪在聚合物加工中的应用
应用领域
检测样品
检测项目
哈克转矩流变仪 、积木式流变测量仪，通过记录物料在混合过程中对转子或螺杆产生的反扭矩以及温度随时间的变化，可研究物料在加工过程中的分散性能、流动行为及结构变化(交联、热稳定性等)，同时也可作为生产质量控制的有效手段。由于转矩流变仪与实际生产设备(密炼机、挤出机等)结构类似，且物料用量少，所以可在实验室中模拟混炼、挤出等过程，特别适于生产配方和工艺条件的优选。对聚合物的加工有很重要的意义。
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HAAKE转矩流变仪及其应用
应用领域
检测样品
检测项目
HAAKE转矩流变仪Polylab Rheocord系统(RC)是一种多功能流变学测试系统，基本原理是被测试样品抵抗混合的阻力与样品粘度成正比，转矩流变仪通过
作用在转子或螺杆上的反作用扭矩测得这种阻力。
HAAKE转矩流变仪可用于确定多种材料和合成物的加工特征及流动行为。例如，确定并分析流动特性，控制原料及制品的质量，在与加工条件相关环境下进行
实验室测试时，能模拟实际的加工工艺，能精确地控制温度，灵活地控制速度，并能对流变性能作出评价，而且试验结果具有重复性。
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Toughness Enhancements in Poly(methyl methacrylate) by
应用领域
检测样品
检测项目
The mechanical properties of multiwall carbon nanotube (MWNT)/poly(methyl methacrylate) (PMMA) nanocomposites were studied as a function of nanotube orientation, length, concentration, and type.
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Thermo Scientific NanoLab
应用领域
检测样品
检测项目
The Thermo Scientific NanoLab compounder package contains the tools to mix or compound Nano par-ticles (Nano tubes) in a base polymer.
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The influence of two different types of carbon
应用领域
检测样品
检测项目
Variations of the filler structure can have a drastic effect on the flow behaviour and so the processability of Polymer Compounds.
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Investigation of the flow characteristics of PET
应用领域
检测样品
检测项目
Polyethylenterephthalate, a thermoplastic polymer and part of the Polyester group, is produced by polycondensation.
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Examining the Fusion and Degradation
应用领域
检测样品
检测项目
PVC dry blends often have the tendency to exhibit greatly differing melt and degradation characteristics after undergoing comparatively small alterations in the recipe. This can lead to variety of problems during processing such as e.g. reduced impact
strength or the coloring or degradation of the extrudate.
The PolyLab System offers a quick and reliable method of examining
these material characteristics.
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Viscosity measurement of LDPE samples
应用领域
检测样品
检测项目
In the plastics industry, measuring the melt flow rate (MFR) is one of the simplest and most frequently used test methods for finding out
about the flow behaviour of polymers.
The following case, taken from actual practice, will show that this
method of determining the melt characteristics of a substance is not
always sufficient. The two LDPE (low-density polyethylene) samples
in this investigation both had the same MFR value, but displayed
different modes of behaviour in practice when they were being
processed.
暂无关联产品
Filter Pressure Value Test (FPV test) - a new
应用领域
检测样品
检测项目
For quite a period screen life tests for rating the quality and
dipersibility tests of colorants in polymer melts have been
performed. But the comparison of those test were poor. The draft of
the new standard EN 13900-5 describes now a procedure which
increases the comparability of those tests. On one hand this standard
describes which kind of extruder, melt pump, sieves and breaker plate
have to be used and on the other hand the composition of mixture,
the test routine and the evaluation is described.
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Use of Bench-top Twin-Screw Extruders
应用领域
检测样品
检测项目
Twin-screw extruders are widely used for dispersion of pigments and
additives into thermosetting resins for the manufacture of powder coatings. This paper outlines the manufacturing process for thermoset powder coatings and the availability small-scale twin-screw extruders together with a range of ancillary
equipment, to assist the powder coating producer in development,
sample preparation, colour matching and testing of the product. It also describes the key element of heat transfer in scale-up from laboratory extruders to production plant.
暂无关联产品
Degradation tests –A new test procedure to examine polymers
应用领域
检测样品
检测项目
Degradation of polymers, i.e. main chain scission, seriously impacts the processability and optical and mechanical properties of the end product. Commercial plastics contain additives and antioxidants to minimize the effects of degradation caused during processing. Even with the use of these substances, transport phenomena, including migration of additives, gas and vapour permeability, oxygen absorption and distribution of the additives, influence the kinetics
of thermo-oxidative degradation, degradation (fig. 1) and stabilization.
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Pharma MiniLab – a small scale compounder
应用领域
检测样品
检测项目
Hot melt extrusion and continuous process leads to cost efficient production. In development of new drug/excipients small scale extrusion systems reduce time to market and use comparable processes to production. Applications and products for development with the HAAKE Pharma Minilab are described.
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Residence time measurements in Bench top
应用领域
检测样品
检测项目
Co-rotating twin-screw extruders are widely used for dispersion of
fillers, pigments and additives into thermoplastic materials. This paper outlines experiments on two different sized twin screw extruders, with results showing the relationships between
screw speed and feed rate and its effect on residence time.
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Ceramics – Compounding of Feed Stock
应用领域
检测样品
检测项目
Powder Injection Moulding is a useful Process as a large number of complex products are produced with short cycle times. Base Products is fine ceramics or metal powder blended with Binder to form a flowable feedstock for injection moulding. These two steps are investigated on a small scale using laboratory equipment.
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Small Scale Catheter Production
应用领域
检测样品
检测项目
Catheters were produced of Polystyrene (PS) and Polycaprolactone
(PCL). A PolyDrive extruder system, as stand alone extruder was used
with the catheter die. For stable extrusion it was necessary to use a
water bath and the take off system. By varying take off speed and output different sizes of the catheter were obtained.
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Evaluating the plasticization process of different
应用领域
检测样品
检测项目
A HAAKE PolyLab OS torque rheometer, equipped with a Mixer was
used to test four different soft PVC samples. The type and amount of
plasticizer was varied. The corresponding torque curves helped to differentiate the formulas. The PolySoft Mixer data evaluation is explained in detail in this application note, and valuable hints are given for substituting PVC blend ingredients, e.g.plasticizers, stabilizers.
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Correlation between Mixer Tests and the
应用领域
检测样品
检测项目
This report describes the correlation between measurements done on a
laboratory mixer with PVC Dry Blends and their processing behaviour on a counter-rotating twin screw extruder.
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Helpful Data for Tests with Extruder Sensors
应用领域
检测样品
检测项目
This laboratory report is a revised version of the well known LR-04E dating back to 1989. With the introduction of the PolyLab A (1995)and in the PolyLab OS (Fig. 1, 2005) Torque Rheometer systems got
more flexible, in response to growing customers demands. The listed data (Tab. 1a/b) is obtained during laboratory testing and should be regarded as recommendations. Deviations are possible.
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Nanocomposites – Examples on Compounding
应用领域
检测样品
检测项目
This report describes practical examples
of nanoclay – polymer compounds
processed successful in the
Karlsruhe PI Demo center during
2006.
Nanoclay was compounded with
commercially available resins such
as PP, PA and ABS. Test setup and
instrument parameters are given
as a guide line.
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大体积热重分析仪对热红联机灵敏度的提高
应用领域
检测样品
检测项目
In Thermogravimetry (TG) and TG/FTIR systems, there are many variables that can affect the detection limit of the system. It is demonstrated in this paper that the larger the sample size, the better the detection limit.
For TG/FTIR, with a certain kind of TG/FTIR interface, the detection limit is dependent upon the sample holder volume of the TG system. It
is proved that, for a sample mixture, the ratio of balance sensitivity to standard sample holder volume should be used to characterize the detection limit of TG, while the standard sample
holder volume of the TG system should be used to characterize that
of TG/FTIR.
暂无关联产品
用H2S(硫化氢)硫化TiO2的热重与质谱分析
应用领域
检测样品
检测项目
The sulfurization of Titanium Dioxide (TiO2)by pure Hydrogen Sulfide
(H2S) was successfully monitored using a simultaneous Thermogravimetry (TG) and Mass Spectrometer (MS) system. While confirming the progress of the reaction from TG and MS data, experimental results also showed that such a reaction was diffusion controlled.
采用热重与质谱同步分析，成功地监测了TiO2与纯的H2S硫化反应的全过程，并揭示了其扩散控制的机理。
暂无关联产品
旋转流变仪用的通用容器夹具
应用领域
检测样品
检测项目
在日常的研究工作当中，经常需要将样品从容器中取出再进行测试。这个过程往往会对样品的微观结构产生破坏和改变，不利于得到样品真实的流变特性。
本夹具可以将样品及敞口容器直接固定在旋转流变仪上并进行有效流变测试，不需要样品的装样过程。
适用于哈克全系列旋转流变仪MARS/RS6000/RS1。
暂无关联产品
利用哈克转矩流变仪表征热塑性塑料的流变性能
应用领域
检测样品
检测项目
preparation and rheological investigation on thermoplastic plaste with Rheomix and to scale up to pilot extrusion.
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