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Corona Industries Inc. (Strategic Partner: Shanghai Solon Information Technology Co., Ltd.)

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sales@kinochina.com
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Address
D1-3F, No. 128 Shenfu Road, Xinzhuang Industrial Park, Minhang District, Shanghai

TrueDrop® Contact angle tester

NegotiableUpdate on 12/21

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

TrueDrop The SL150E contact angle tester is an entry-level interface chemical analysis equipment designed for teaching experiments, basic scientific research, and industrial quality inspection. It combines cost-effectiveness and core functions to meet the basic testing needs of contact angle and interface tension.

Product Details

TrueDrop ® The SL150E contact angle tester is an entry-level interface chemical analysis equipment designed based on standard image analysis methods, suitable for precise measurement of contact angle and interface tension values. This device combines modular concepts with high cost-effectiveness advantages, providing an economical and efficient solution for teaching, basic scientific research, and industrial quality inspection.

TrueDrop ® Core Technology and Configuration of Contact Angle Tester SL150E

Modular design: supports flexible combination of multiple components, adapts to testing requirements such as dynamic/static contact angle, liquid gas/liquid liquid interface tension, etc.
Precision hardware system:
- Industrial grade optical imaging: High definition contour lens and quartz glass soft light source ensure precise imaging of droplet contours.
- Precision titration system: supports manual or semi-automatic droplet control, easy to operate.
CAST ® 2.0 Analysis Software:
- Contact angle and surface free energy analysis: supports dynamic/static contact angle, forward/backward angle (liquid addition/subtraction method), and calculation of solid surface free energy components (dispersion force, polarity force, hydrogen bonding force).
- Interface tension testing: Based on the Pendant Drop method, liquid gas/liquid-liquid interface tension measurement is achieved.

Application scenarios

Teaching and Training: Basic Wettability Teaching Experiments in Universities and Research Institutions.
Industrial quality inspection: rapid assessment of surface properties of coatings, inks, cleaning agents, and other products.
Materials research: Surface free energy analysis of polymers, films, fibers, and other materials.

technical advantage

High cost-effectiveness: Simplify design to reduce usage costs, while balancing core functionality and practicality.
User friendly: Modular structure simplifies the experimental process and adapts to different user needs.
Data reliability: Based on image analysis and standardized algorithms, ensure the accuracy of measurement values.

Service Support
We are committed to providing instruments and equipment with stable performance and reasonable prices, and supporting customer research and quality control needs through professional technical services to help improve experimental efficiency.

Definition of contact angle

The angle formed when a small liquid droplet is dropped on a solid horizontal plane and the liquid phase is sandwiched between the gas-liquid interface and the solid-liquid interface at the solid liquid gas three-phase boundary point on the surface of the solid is called the contact angle.

Application Scope Table

Application field	Specific application scenarios
Surfactants, soaps, and detergents	Analyze product cleaning performance and interface activity
Lotion and polymer	Evaluation of lotion stability and polymer surface modification effect
Medical materials	Wettability analysis of biomaterials such as artificial bones
Spray, paint and coating	Optimize spray uniformity and coating adhesion
Paper, film, and ink	Test printing suitability and surface wetting characteristics
cosmetics	Evaluate the spread of cream, essence and other products
Aluminum foil hydrophilic angle test	Hydrophilicity analysis of materials such as air conditioning aluminum foil
Core, coal mine, insulator	Wettability analysis to optimize energy extraction and insulation material performance
Polarizing film, film surface	Surface wettability testing to enhance optical performance
UV irradiation and droplet movement	Study on the dynamic wetting behavior of photoresponsive materials
Fabric surface	Hydrophilic/hydrophobic analysis for improving textile functionality
food industry	Analyze the moisture and oil resistance of food packaging materials
Surface treatment and cleaning effect	Evaluate the surface condition of materials after modification or cleaning
Stability of lotion and foam	Interface tension and viscoelasticity testing
Interface adsorption and competition	Study the adsorption behavior of surfactants, proteins, or polymers
Interface rheological properties	Characterization of Interface Viscoelasticity under Dynamic Conditions
High precision components (PCB, chip LCD/LED）	Surface cleanliness testing to ensure manufacturing quality
Wettability of fibers and resins	Analysis of Interface Compatibility between Carbon Fiber, Glass Fiber and Resin
Electro wetting conversion	Dynamic study on contact angle variation under electric field conditions

Compliance with standard table

Standard Number	Standard Name
ASTM D 724	Test method for surface wettability of paper (contact angle method)
ASTM D 5946-2004	Measurement method for water contact angle of polymer films treated with corona discharge
ISO 15989	Measurement method for contact angle between plastic film and water (corona treated film)

Technical characteristics of SL150 series contact angle tester

1. Precision Machinery and Control Systems

Cross linear guide rail technology:
- The manual control accuracy reaches 0.01mm, and the software control accuracy is 0.5 μ m, ensuring stability and repeatability.
Multidimensional mechanical structure design:
- 2XYZ+3 horizontal adjustment system coordinates the operation of the sample stage, camera, and injection system to reduce mechanical vibration.
High precision infusion pump:
- The droplet control accuracy can reach 0.02 μ L (expandable to nL level), suitable for testing superhydrophobic materials and high viscosity samples.
Integrated aviation aluminum fuselage: lightweight design (considering strength), easy to operate and maintain in the laboratory.

2. Specialized optical imaging system

Adjustable LED cold light source: adjustable brightness to prevent droplet evaporation and ensure clear contours.
High depth industrial lens: suitable for imaging complex sample surfaces, with a magnification of 0.35-4.5X.
High speed camera system:
- Standard configuration: 87 frames per second camera (WVGA format), optional 130M/300M/500M resolution camera.
- Support AOI technology high-speed cameras (100-1000 frames per second) and GigE cameras to enhance dynamic capture capabilities.
Quartz glass shading film: optimizes the uniformity of background light, resulting in higher imaging contrast.

3. Intelligent Software System (CAST) ™ 2.0）

Diversified droplet analysis:
- Supports 6 droplet forms, including stop drip (2/3 state), suspended drip, bubble capture method, insertion plate method, oscillation drip method, etc.
Calculation of contact angle and surface free energy:
- 7 algorithms and 20 fitting techniques: including θ/2 method, ellipse fitting method, Young Laplace equation fitting (fourth generation technique), etc.
- 12 surface free energy models, such as Equation of State and Acid base method, are used to analyze components such as dispersion force, polarity force, hydrogen bonding force, etc.
Dynamic wetting behavior analysis:
- Measurement of forward/backward angle, rolling angle, and time-dependent contact angle.
- Surface correction technology: supports contact angle analysis of concave or convex surfaces.
Interface tension test:
- Based on the Young Laplace equation, adapt to liquid gas, liquid-liquid systems, and medium to high viscosity samples.
- The oscillation drop method is used to test the dynamic tension of surfactants.
Database management:
- Real time data saving and image association, supporting historical record query, modification, backup, and export (Excel/BMP format).
Fully automated operation:
- One click completion of image capture, calculation, and data saving, supporting manual correction and real-time data display.

4. Humanized design

Modular structure:
- Removable injection system: compatible with fine needle tubes and PTFE needle tubes, resistant to acid and alkali corrosion.
- Four dimensional horizontal adjustment: The sample stage has a two-dimensional leveling function, which is suitable for testing uneven surfaces.
Portable interface: USB 2.0 power supply and data transmission, compatible with laptops and new desktop computers.
Guided operation interface: a fully Chinese interface combined with a 140 page operation manual, which can be used without professional training.

5. Extended functions

Wettability Envelope Diagram (WBA) ®）： Analyze the surface energy distribution and wetting characteristics of liquids.
Fiber and monofilament testing: Supports Rod and Thread methods to measure fiber contact angle.
Video recording function: The measurement process can be recorded in AVI format for easy reproduction and teaching demonstration.

Application scenarios

Research field: Study of material wettability, surface free energy, and dynamic interface behavior.
Industrial quality inspection: evaluation of coating adhesion, cleaning agent performance, and printing ink uniformity.
Teaching Experiment: Wettability Teaching for Fundamentals of Chemistry and Materials Science in Higher Education Institutions.

Technical Specifications

The main differences between each model are marked with "*" below.

				SL150S	SL150B
Instrument appearance diagram
Related model keywords				Standard static contact angle meter/Interface tension meter	Basic static contact angle meter/Interface tension meter
Hardware configuration and specifications	Sample stage control	Horizontal X movement		Manual stroke: 50mm Accuracy:0.1mm Upgradeable to a maximum travel distance of 150mm	none
		Horizontal Y movement
		Up and down Z movement		Manual 40mm accuracy: 0.01mm	Manual40mmAccuracy: 0.01mm
		Sample table rotation		Need to purchase
		level adjustment		Manually adjust the knob to control the level of the sample stage, the level of the entire machine, and the level of the lens
		Sample stand		50*50mm		50*50mm
		Can hold the largest sample		150(W)∞(L)50(H)mm		150(W)∞(L)50(H)mm
	Other controls	Needle tube XY movement		Travel: 12.5mm Accuracy:0.01mm
		Liquid inlet control Z: pipetting		Manual stroke: 12.5mm Accuracy:0.01mm			Manual travel: 12.5 Accuracy:0.01mm
		Camera horizontal control		One dimensional pitch adjustment with locking function
		Light shielding film technology		*Need to purchase separately			*Need to purchase separately
		accessories		Optional: Professional fiber clamps, professional film clamps, and plant leaf clamps can be used to analyze the contact angle values of fiber or surface uneven samples.
	sampler	model		*Manual infusion pump			*Manual infusion pump
		Standard precision		0.01mm 0.02uL			0.02uL syringe pump
		Transfer method		* Manual control of pipetting operation			*HandDynamic control of liquid transfer operation
		needle		Professional replaceable needle injection syringe, including 0.5mm standard needle, 0.9mm thick needle, and 0.3mm stainless steel fine needle, PTFE needle, etc. used to test the contact angle value of superhydrophobic materials or adhesives on solid materials
	imaging system	lens		Industrial grade contour lens, specifically designed for liquid contour analysis
		camera		1. Industrial grade black and white USB 2.0 camera; 2. Resolution: 752 * 480 (standard video WVGA format); (Optional cameras with 1.3 million pixels, 3 million pixels, 5 million pixels, or higher definition) 3. Image speed: 87-340 frames per second; (Optional 100 frames per second, 300 frames per second, 1000 frames per second or higher) 4. Standard format image conversion without image distortion; 5. Communication interface: USB 2.0 with no compatibility issues/optional 1394 interface camera
		light source system		Adjustable brightness monochrome cold light LED light source, with clearer contact angle image edges
software system	There are 5 methods for testing droplet states: Pendant Drop, Sessile Drop (2/3 state), Captive Drop, Plate Insertion, Oscillating Drop, etc.
	There are two types and seven or more methods for calculating contact angle: (1) Based on real droplets ® （TrueDrop ®） Geometric model of technology, protractor method based on Asha ® （ADSA ®- RealDrop ®） The Young Laplace equation fitting method for technology. (2) θ/2 method, circle fitting method, ellipse fitting method, curve ruler method (tangent method), Spline interpolation curve fitting method, Young Laplace equation fitting method, etc.
	Contact angle data acquisition method: a combination of fully automatic measurement and manual modification. Press' Test ', the software automatically completes the process of taking photos, searching for sensitive points, calculating contact angle values, and displaying the calculation results, without the need for manual intervention, in order to reduce the influence of human factors.
	Contact angle measurement technology: combining mathematical model fitting with actual measurement of the actual droplet profile to solve the problem of asymmetric image measurement
	Automatic surface correction: upward convex surface, downward concave surface, surface roughness correction;
	Dynamic/static contact angle test, can test forward/backward angle/tilt angle and rolling angle values
	Image capture method: Single shot or 25 frames per second continuous shooting at higher speeds requires the purchase of corresponding speed cameras such as 60 frames per second, 100 frames per second, and 1000 frames per second.
	Dual software triggering technology can be used to obtain the contact angle at the first moment during the analysis of powders, paper, and other absorbent materials, as well as to capture the entire process of measuring small contact angles.
	The function of calculating and comparing the left and right contact angle values separately, and the software automatically calculates the average contact angle
	Automatically generate a curve graph that allows real-time observation of changes in contact angle
	Powerful database management function: data corresponds one-to-one with images, backup, compress, and export EXCEL tables. Measurement values and curve fitting results can be saved to the exported images, which are intuitive and clear.
	Video recording function: Record AVI format film and television images, which can be used for PPT file production.
	Up to 12 surface free energy estimation models, including: Equation of State ( Neumann et al. )、Good-Girifalco、Owen-Wendt-Rabel、Simple Fowkes、Extended Fowkes、WU There are a total of 12 surface free energy estimation methods, including Method 1-2, Schultz Method 1-2, Acid base (Van OSS&Good), Jhu, and Zizman critical surface tension method, which can not only analyze low-energy solid surfaces, but also high-energy solid surfaces, as well as their distribution (dispersion force, polarity force, hydrogen bond value, Lewis acid-base, etc.)
	Powerful Wetting Behavior Analysis (WBA score) ® Analysis)
	Automatic droplet volume, adhesion work, and one liquid method surface free energy analysis function, which can be used to test the surface tension value of thin films and can replace the testing function of Dyne pens
Universal indicators	Scope of contact angle testing		0°＜θ＜180°
	Reading resolution		0.01°
	test accuracy		± 1 ° (θ/2 method) ± 0.1 ° circle fitting method
	Interface tension testing range		0.001-2000mN/m
	Resolution of interface tension test		0.001mN/m
	Interface tension testing method		BA table (select plane), Young Laplace fitting technique (fourth generation)
	Host size and weight		300Wx650Lx600Hmm 23-30kg
	power supply		AC100~240V 50/60HZ

Special statement:

1. The above image information and technical parameters are subject to changes due to design without further notice, and the latest confirmed product information shall prevail.

2. Our company reserves all rights.
3. Asha ®、 RealDrop ®、 TrueDrop ®、 MicroDrop ®、 WBA ®、 ADSA ® It is a registered trademark of Shanghai Solon.

CAST^®Asha^®、ADSA^®、TrueDrop^®、RealDrop^®、TheDrop^®、MicroDrop^®、LMCA^®、Shsolon^®Solon^®Register a trademark for Shanghai Solon.

The above trademark is used for goods or services related to contact angle measuring instruments, surface tension meters, and interfacial tension meters. Infringement will be prosecuted!