What often causes headaches in product development is notMake a good exampleBut insteadMake every sample equally goodThis requires turning experience into a 'standard operating procedure': writing down goals, equipment, steps, parameters, and recording methods clearly, so that different people and batches can reproduce the same results.

In the context of quality management, Standard Operating Procedure (SOP) is a standardized document that solidifies processes and responsibilities, with the aim of ensuring correct steps, consistent sequence, and traceable results (ISO 9001 system also requires the establishment of such procedural documents).

Suitable for the research and development of ink, coating, adhesive and other formulationsDecentralized Standard Operating Procedure SOPWe cannot do without a stable and scalable laboratory equipment. Here, Zhanlin Instrument uses the Dispermat from VMA in Germany ® Taking the CV3evo laboratory high-speed disperser as an example, combined with the SL seriesHorizontal sand millThe fine grinding ability provides you with an example of the "parameter chain" from experiment to amplification.

CV3evo laboratory high-speed disperserSupporting multiple process extensions such as stirring, dispersion, vacuum dispersion, homogenization, and fine grinding (electric lifting, touch control, modular accessories), suitable for standardizing and digitizing laboratory steps; ButSL series laboratory horizontal sand grinderCovering a laboratory/medium sample volume of 0.05-50 L, a low dead angle horizontal grinding chamber is used to facilitate reproducible refinement at the micrometer to nanometer level.

SOP， Standard operating procedures are written into executable and reusable documents and forms that describe how a process is done, by whom it is done, what it is used for, to what extent it is achieved, and how it is recorded and released, in order to ensure efficiency, quality consistency, and compliance.

Dispermat® CV3evo

So, why does Zhan Lin recommend using itDispermat® CV3evoHow about drafting your 'Decentralized SOP'——

1. Modular and scalable:CV3evo can be completed on the same platformMixing/dispersion/vacuum dispersion/homogenization/fine grindingReduce uncertainty across devices and facilitate writing the process into a unified SOP.

2. Reproducible parameters:Electric lifting+integrated control,Can record/recall key process parameters such as speed, time, temperature, etcSuitable for establishing a "batch comparison" formula fingerprint.

SL series laboratory horizontal sand grinder

3. Advanced to precision grinding:When the particle size or distribution does not meet the target, useSL LaboratoryHorizontal sand millHorizontal grinding for cyclic or single discharge, with a range of 0.05-50 L, low dead angle, easy to clean, suitable for the "last step before scaling up".

Objective: To achieve pre mixing and dispersion of a certain coating on CV3evo, obtaining stable particle size distribution and replicable rheology/appearance; If necessary, switch to the SL series for precision grinding.

Step 0 | Files and Security

Confirm the SOP version, operator, batch number, container, and protection (cover/clamp/explosion-proof area) of this formula. The key is to clearly state responsibilities and order for easy traceability and training.

Step 1 | Raw Material and Equipment Inspection

Weighing resin/solvent/additive/pigment; Record the initial viscosity and temperature. Install serrated dispersing discs of appropriate diameter, confirm the clamping state between the cover and the container, and set the initial liquid level height (anti vortex, anti suction).

Step 2 | Premixing and Speed Up Strategy

Low speed pre mixing allows the powder to fully wet, and then enters the dispersion zone according to the "segmented speed increase". Linear velocity（Tip Speed）Used to unify energy input at different diameters/speeds. The commonly used high-speed dispersed blade tip velocity range is 2500-5000 fpm (≈ 13-25 m/s), adjusted according to the viscosity and flowability of the formula within this range.

Step 3 | Process Control (Record Three Things)

1. Energy and time: the duration of each speed held; If necessary, accumulate "equivalent energy" in segments.

2. Temperature management: Excessive temperature rise can cause false condensation/volatilization. Add cooling or shorten each period of time.

3. Gas control: If there are obvious eddies and gas entrapment, reduce the speed or adjust the disc diameter/liquid level; When necessary, switch to vacuum dispersion to reduce bubble entrainment.

   
   

Step 4 | Central control sampling and judgment

Sampling at fixed time points for particle size/fineness, appearance and rheological determination (such as through scraper fineness or particle size analyzer, appearance microscopy, Δ E reference film). If the standard is not met, adjust the blade tip speed or re mix the ratiowetting agent/Grinding aids; If reaching a bottleneck, then proceed toSL series horizontal sand grinderPerform precision grinding.

Step 5 | End and Cleaning

Clean and record the "final parameter card" (tip speed range, segmentation duration, maximum temperature, batch Δ E/fineness/rheology) according to SOP, archive samples and data for easy replication and amplification in the next batch.

Tips:

1. Low viscosity system reduces velocity to suppress large vortex gas; Moderately increasing the tip speed of high viscosity systems compensates for insufficient circulation.

2. For high solid content or high gloss filling systems, evaluate as early as possible whether it is necessary to switch to more refined grinding paths such as SL-NANO.

When the laboratory dispersion is close to the target but the particle size tail or distribution width is still not ideal,Use SL-C/SL-NANO for horizontal sandingSelect appropriate chambers and media (such as zirconia), set circulation or single discharge paths, and achieve stable refinement in low dead chambers and linearly cooled chambers; The range covers 0.05-50 L, suitable for smoothly transferring experimental parameters to the pilot scale.

SL-NANO horizontal sand mill

Dispermat® CV3evo

Laboratory high-speed disperser

This is a multifunctional decentralized equipment newly launched by VMA in Germany, designed specifically for laboratory research and small-scale production.

Dispermat® CV3evo

CV3evo adopts an electric lifting and touch control system, which can achieve precise speed and time parameter settings, and has temperature monitoring function, allowing each dispersion process to be accurately reproduced.

Its modular design supports the combination of vacuum systems, different types of dispersing tools or grinding accessories, greatly expanding the application scope of the laboratory.

For materials such as coatings, inks, adhesives, etc., CV3evo can quickly achieve uniform and stable dispersion effects, especially suitable for R&D teams to screen formulations and optimize processes.

SL series laboratory horizontal sand grinder

As a high-performance grinding device, the SL series is suitable for efficient dispersion of particles ranging from micrometer to nanometer scale. It adopts a residue free and easy to clean linear cooling grinding chamber design, supporting cyclic or single discharge modes to ensure sample grinding uniformity and high yield.

SL series laboratory horizontal sand grinder

The SL series can handle a wide range of samples and, when combined with different grinding media such as silicon carbide and hard alloys, can flexibly respond to various high demand material systems.

According to the different needs of users, the SL series laboratory horizontal sand grinder provides C-type technical control and corresponding explosion-proof models to meet the more stringent research and development needs of industries such as electronic films and drug coatings, helping users achieve higher dispersion effects of active particles and excellent product performance.

SL Series - C-Type Technical Control

The two devices complement each other: CV3evo is suitable for rapid dispersion and formula validation, while the SL series excels in fine grinding and nanoscale processing. They not only meet the daily research and development needs of the laboratory, but also provide reliable parameter support for subsequent pilot and mass production processes.

Dispersion is not a one-time inspiration, but a reproducible and scalable method.

Dispermat ® The CV3eco high-speed disperser and SL series horizontal sand mill can connect the parameter chain from laboratory to pilot testingDo it well oncebecomeDo it well every time.

If you are evaluating equipment selection, formulation path, or scaling strategy,Welcome to contact Zhanlin InstrumentWe can provide product information interpretation, typical application sharing, parameter discussion, and equipment demonstration based on your actual scenario. We can also assist in arranging sample verification and communication of implementation plans.

More efficient dispersion and grinding applications of VMA

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