Upwelltest | Jinan Upwell Test Co.,Ltd

How does the carbon black content tester work? What are the precautions

The Carbon Black Content Tester is a thermal analysis instrument mainly used to determine the actual percentage of carbon black content in plastic and polyethylene materials. The so-called carbon black test is obtained by gravimetric analysis of the sample after pyrolysis under nitrogen protection. So, how does the carbon black content tester perform the carbon black test? What are the specific methods of operation? These issues are often of concern to everyone. Let’s take a closer look at the [...]

The Reason Of Melt Flow Rate(MFR) Meter Data Not Right?

Melt Flow Rate Meter (MFR) for resins, which is used to test natural, compounded and treated thermoplastics. In theory, if done properly, the two methods should produce the same test results. But with such important data, why are your measurements different from others? Melt Flow Index Tester(MFR) Three factors that affect testing 1. Standard reference materials and proficiency test Some laboratories use Standard Reference Materials (SRM) to cross-validate the results of melt flow rate tests, and others have their own reference materials that [...]

Precautions for Operation of Melt Flow Index Meter (MFI)

The melt flow index meter is in charge of a special person. The test should be carried out in strict accordance with the operating procedures. It is strictly forbidden to do tests beyond the test range. After the test, the instrument should be restored to its original position to ensure that the next test is carried out normally. The working environment and conditions should meet the The specified requirements include relative humidity, room temperature, power supply voltage, and installation [...]

2022-08-30 By upwelltest News Melt Flow Index Meter, MFI Read more...

What Can a Differential Scanning Calorimeter（DSC) Measure?

Differential scanning calorimeter is also referred to as DSC. DSC is to make the sample under the control of a certain temperature program (rise/decrease/constant temperature), and observe the change process of the heat flow power difference between the sample end and the reference end with temperature or time. Obtain relevant thermal effect information such as the endothermic, exothermic and specific heat changes of the sample during the temperature program, and calculate the endothermic and exothermic heat (enthalpy) and characteristic [...]

2022-08-23 By upwelltest News Differential Scanning Calorimeter, DSC Read more...

Fabric Air Permeability Testing Principle

Important factor that affects the comfort of the fabric is the air permeability of the fabric. Sportswear and windproof and coldproof clothing have higher requirements on the air permeability of fabrics. Some industrial textiles, such as aircraft parachutes and filter cloths, have special requirements for the air permeability of fabrics. The air permeability of the fabric is determined by the number and size of the warp and weft yarns and the fiber gap in the fabric, and is also [...]

2022-08-20 By upwelltest News Fabric Air Permeability，Fabric Air Permeability Testing Read more...

The Principle and Characteristics of Martindale Abrasion Tester

The Martindale Abrasion Tester is designed by absorbing the advantages of similar instruments at home and abroad. It has a beautiful appearance and is easy to operate. The microcomputer system adopts two counting methods, which are intuitive and easy to set. This instrument is suitable for testing the abrasion resistance and pilling degree of knitted fabrics, woolen fabrics, artificial leather, synthetic leather, etc. under pressure. Martindale Fabric Abrasion Tester 1. Principle: Under a certain pressure, the circular fabric sample and the standard [...]

2022-07-20 By upwelltest News Martindale, Martindale Abrasion Tester Read more...

Application and Characteristics of Synchronous Thermal Analyzer

During the heating process of the synchronous thermal analyzer, if the measured substance sublimates, vaporizes, decomposes or loses crystal water, the quality of the measured substance will change. At this point, the thermogravimetric curve is not straight, but decreasing. By analyzing the thermogravimetric curve, you can know at what temperature the measured substance has changed and calculate how much weight loss is lost. Below we introduce the application and characteristics of the synchronous thermal analyzer. The thermogravimetric curve shows that [...]

2022-07-19 By upwelltest News Synchronous Thermal Analyzer Read more...

The Importance of Regular Cleaning of Halogen Moisture Analyzer Tester

The halogen moisture analyzer tester adopts high-power ring halogen lamp for heating and intelligent operation. It can quickly and evenly dry the sample and obtain accurate moisture measurement results. The clear moisture measurement information display can realize intuitive, simple and convenient instrument operation. Halogen moisture analyzer tester are widely used in industries that need to quickly measure moisture to meet the application requirements of various industries, such as plastics, rubber, chemical, pharmaceutical, food, and other industries in the production and experimental [...]

2022-07-13 By upwelltest News Halogen Moisture Analyzer, Halogen Moisture Tester Read more...

Surge Simulator For Surge Immunity Testing Method EMC Test

The Surge Simulator is an advanced high voltage source and measurement unit consisting of programmable pulse trains and advanced pattern analysis software. The instrument takes normal 115 or 220V AC power and converts it to the higher voltage required for surge testing. The higher voltage is rectified to a DC voltage, which charges the large discharge capacitor. The order of the surge tester tests is important, after the resistor is heated, the resistance will decrease. After the resistance is reduced, [...]

2022-07-11 By upwelltest News EMC Test, Surge Immunity Testing, Surge Simulator Read more...

Melt Flow Index Tester(MFR) Working Principle

Melt Flow Index Tester (MFR) is to use a high temperature heating furnace to make the measured object reach a molten state under the specified temperature conditions. The test object in this molten state is subjected to the extrusion test through a small hole of a certain diameter under the specified weight load. In the research of plastic production in industrial enterprises and scientific research units, “melt (mass) flow rate” is often used to represent the physical properties such as [...]

2022-07-06 By upwelltest News Melt Flow Index Tester, MFR Read more...

Author - upwelltest