In the present work, a method has been proposed to estimate the rheograms of a melt at temperatures relevant to its processing conditions with the use of a master curve, knowing the melt flow index and glass transition temperature of the material. Melt flow testers are ideal for standard procedures ranging from a quick manual test to a multiweight characterization. The mfi2100 melt flow index tester helps gauge the compositon and consistency of plastics, rubber, lubricants and numerous other liquid and molten subtances. The melt flow index of a plastic resin is termed as the weight of the resin flowing through a capillary tube every. Melt flow tester in application with a plastic production machine. Melt flow index is an assessment of average molecular mass and is an inverse measure of the melt viscosity. The device is equipped with advanced features like touch screen display, protective mesh around the barrel, automatic cutter activation. The mfi is a determination of the flow ability of thermoplastic materials.
The hanatek melt flow indexer mfi can be annually serviced by the user whilst maintaining full ukasiso 17025 certification, eliminating the cost of an onsite calibration service or return to manufacturer calibration. The protocol is followed in general except for the specific instructions presented in steps b f of this procedure. Both melt flow and rheology tests can be very helpful tools for qc monitoring and development of polymers. Melt flow indexermfi are used for military uniforms, canvas, canvas, labor insurance products. The melt flow rate was tested by using recycled polystyrene pellets in the melt flow. Melt flow index tester next generation model testing. Melt flow index tester nxg model testing procedure youtube. Mfi400b melt flow indexer operation instructions page 10 3. Understanding melt index and astm d1238 request pdf. The plastic melt flow index tester is far superior to all national and international standard of melt flow rates requirements, including iso13, astm d1238 and gbt 3682 method a.
The melt flow rate apparatus has been designed in accordance with iso 13 and astm d1238. A wide variety of melt flow index test equipment options are available to you, such as impact testing machine, abrasion tester. Odts provide several advantages as they combine the. Melt flow index tester, manufacturers suppliers of melt flow index. The manually operated test procedure is very simple to undertake. The melt flow index mfi is a measure of the ease of flow of the melt of a thermoplastic polymer. You can also choose from electronic melt flow index test equipment there are 408 suppliers who sells melt flow index test equipment on, mainly located in asia. The equipment is known as melt flow index tester, mfi melt flow indexer, plastic laboratory melt flow indexer, melt flow index testing machine, plastic melt index test equipments, testing of melt flow index for plastic, plastic melt flow indexer, etc. Experimental melt flow index mfi was measured by using dynisco lmi. They provide an accurate, cost effective means of monitoring material flow characteristics for lottolot consistency. How is melt flow index mfi value of a polymer related to. For many materials, there are specifications that require the use of this test method, but with some procedural modifications that take precedence when adhering to the specification. China melt flow indexer xnr 400b, find details about china melt flow indexer, melt flow index tester from melt flow indexer xnr 400b beijing united test co. The melt flow index tester is a highly precise and accurate instrument that offers exact and accurate determination of melt flow index of a plastic resin.
Twenty five different electrical apparatus without any other tools. The mfr test may be used to assess creep observed in the field because mfr is inversely proportional to the zeroshear viscosity. Pdf determining the melt flow index of polypropylene. Mfr represents a typical index for characterizing thermoplastics. Series lmi 5000 melt flow indexers, available in 2 models, are designed to meet astm d 1238 specifications as well as international standards. Kj3092 melt flow rate testing instrument can be used for abs,polystyrene,polyethylene,polypropylene,polyamide,fiber resin,acrylate,pom,fluorine plastic,ploycarbonate, and other plastic materials, the melt flow rate mfr or the melt volume flow ratemvr to be determined. Some instruments can also calculate the shear rate, shear stress, and viscosity. Determination of the melt flow index of plasticized polymer material by using plastometer mflow zwickroell. Some products such as plastic pendulum impact test machine total of 16 styels, melt flow indexer total of 18 styles, high temperature oilfree hdt and vicat testing machine and other products. The megger insulation tester is essentially a highrange resistance meter ohmmeter with a builtin directcurrent generator. Melt flow tester melt flow tester melt flow tester the instron ceast mf50 multiweight melt flow tester performs melt flow rate melt index tests according to mfr. View detailed export data, price, monthly trends, major exporting countries, major ports of melt flow index tester under hs code 9024. Measuring mass flow rate mfr and other polymer properties.
Presto group is the manufacturer and supplier of melt flow index tester nxg model testing machines. Mfi tester melt flow index testing rheological testing. Melt flow index mfi is defined as the measure of the ease of melt flow of thermoplastic material in gram over the course of 10 min at a certain standard temperature ie, 230c. Two areas where the melt flow rate test it is not useful are related to processing. Melt flow index is used to determine meltmass flow rate, melt volume flow rate and melt density of thermoplastic resin, it is applicable not only to the higher melting temperature, such as polycarbonate, nylon, fluoroplastics, poly oxide and other engineering plastics, and it also applies to plastic measurement of melt lower temperature. General safety general safety precautions must be followed when using this lloyd instruments prod.
Tracerbased methods are often the only way to separate stream flow components and to determine the origin of water kirchner, 2003. Melt flow index tester on sales quality melt flow index. How is melt flow index mfi value of a polymer related to its viscosity. Melt flow index tester nxg model testing procedure.
Understanding melt flow is a key indicator for producers, processors and converters of plastic materials as it dictates the temperatures and pressures required to manufacture consistent. A complete equipped instrument suitable for the determination of mfr values in g10 min. Sales, quality and technology is absolutely leading position in china. Tmi and rayran have been manufacturing melt flow index testers for plastics for decades. Knowing the mfi of a polymer is vital to anticipating and controlling its processing. A wide variety of price plastic melt flow index tester options are. A method for obtaining the melt flow index of the polymer blends at various compositions from the melt flow index of the individual components and the blend ratio has been suggested based on the. Melt flow index tester in indonesia testing instruments. Pdf rheograms of cellulosic polymers from the melt flow index. The hanatek melt flow indexer mfi is one of the most advanced instruments available for the measurement the melt characteristics of thermoplastic polymers.
Kunlun testing instrument by virtue of leading the industrys product technology, improve the quality system and provide premium services to trelevant manufacturers. The sample can be in the form of virgin resin pellets or ground material from a finished. Export data and price of melt flow index tester under hs code. It is defined as the mass of polymer, in grams, flowing in ten minutes through a capillary of a specific diameter and length by a pressure applied via prescribed alternative gravimetric weights for alternative prescribed temperatures. Melt flow index testers, or extrusion plastometers, characterize the flow properties of a plastic melted mass. A method that is particularly useful in quality control and goods inwards testing, melt flow tests begin by heating the previously weighed out material within the extrusion barrel, which converts the material into granules. Knowing the mfi of a polymer is vital to anticipating and controlling its.
The value of melt flow index testing polymer solutions. The melt flow index value allows for direct comparison of materials to each other and is a valuable tool for quality assurance. The melting property of thermoplastic material can be checked by equipment called a melt flow tester fig. Mfi melt flow index measuring instruments and test equipment.
Extruded material is automatically cut off by the builtin scraper mechanism at preset intervals, controllable to 0. This value is also commonly called the melt index, mi, or melt flow index, mfi. Polymer flow under pressure as an indirect measure of molecular weight melt flow rate mfr, also known as melt flow index mfi or melt index mi the melt flow rate mfr, originally called melt flow index or melt index, is a measure of the ease of flow of the melt of a thermoplastic polymer. Part ii article pdf available in advances in polymer technology 62.
Polymer processors usually correlate the value of mfi with the. The melt index tester from pce instruments is used for rapid testing of the melt mass flow rate. The mfi2100 is said to be simple to use, particularly due to the integrated digital timer and endoftest alarm. The fabric fusing tester is designed for use in the determination of the heatresistant properties of chemical fiber and blended fabrics to determine the effect of fabric resistance to melt treatment. Procedure d is designed to allow mfr determinations to be made using two or three different test loads either increasing or decreasing the load during the test on one charge of material. Melt flow system the 6mba is the basic model offered within the rayran range of melt flow indexers. Polyox watersoluble resins melt flow test procedure. The megger insulation tester is a small, portable instrument that gives you a direct reading of insulation resistance in ohms or megohms. Aug 23, 2011 the mfi test is used widely among the various segments of the plastics industry. Melt flow tester ou plastometre a poids multiples mf50 instron. Melt flow index tester kfy1160x the new kfy1160x mfi series melt flow indexers are designed to meet or exceed the astm d1238 specifications as well as international standards. Astm d1238 standard test method for melt flow rates of.
Melt flow index tester mfi, testing instruments and. Test method for melt flow rates of thermoplastics by extrusion plastometer. Jul 24, 2014 presto group is the manufacturer and supplier of melt flow index tester nxg model testing machines. Leading uk supplier full support and calibration services. Export data and price of melt flow index tester under hs. Determination of the melt flow index of plasticized. This instrument provides an accurate, costeffective means of monitoring material flow characteristics of plastic resins, recycled materials, and is available with iv correlation. Use of melt flow rate test in reliability study of thermoplastic. Can easily combine two or more active agents within the. The melt flow index mfi, also known as the melt flow rate mfr, determines the melt flow properties measured in g10 min of a material at a specific shear stress related to applied load and temperature. The tester conforms to all national and international melt flow resistance standards, including bs. The testing instrument helps the manufacturer to calculate the mfr of the plastics which is considered during the molding process of plastics. Manufacturers of polymer rheology testing machine to measure polymer viscosity, melt flow index and mfi testing.
A useful measure of the shear stressshear rate relationship can be made by measuring the samples mfrmvr at the standard and at the higher load. The mass of resin, in grams, that is extruded in 10 minutes equals the mfr, expressed in units of g10 min. More than just a quality control rheological parameter. Melt flow rate depends on molecular weight, additives, and other ingredients. Melt flow index is used to determine melt mass flow rate, melt volume flow rate and melt density of thermoplastic resin, it is applicable not only to the higher melting temperature, such as polycarbonate, nylon, fluoroplastics, poly oxide and other engineering plastics, and it also applies to plastic measurement of melt lower temperature. Melt flow test equipment for sale with extended warranty. The difficulty is that any two labs can easily come up with different results, making it difficult to determine whether a material meets a desired mfi spec. Find details of companies offering melt flow index tester at best price. The melt flow index of a plastic resin is termed as the weight of the resin flowing through a capillary tube every ten minutes under an unambiguous load or shear stress. Saumya technocrates manufacturering wide range of plastic testing equipments in india the melt flow index test measures the rate of extrusion of a thermoplastic material through orifice of specific length and diameter under prescribed conditions of temperature and pressure. Effect of recycling in postconsumer polystyrene cups theseus. The tester conforms to all national and international melt flow resistance standards, including bs en iso 13 and astm d1238. On sale melt flow index tester, rheological properties. Saumya technocrates manufacturering wide range of plastic testing equipments in india the melt flow index test measures the rate of extrusion of a thermoplastic material through orifice of specific length and diameter under prescribed conditions of.
Melt flow index tester saumya technocrates plastic. Astm d1238 standard test method for melt flow rates. Melt flow index tester, manufacturers suppliers of melt. Characterization of feedstock filament extruded from.
Melt flow indexer the melt flow indexer is an affordable tabletop instrument that tests the melt flow resistance mfr of a wide range of thermoplastics. Part i article pdf available in advances in polymer technology 61. The basic melt flow indexer, often abbreviated as mfi, is an affordableprice tabletop instrument used to test the melt flow resistance mfr of a wide range of thermoplastic materials. En effet, une perturbation pour ce test, une pression constante est appliquee a. After finishing the test, the data are saved as pdf format for. Kfy1168 basic cleaning tool kit recommended cleaning tools and accessories for lmi that includes brushes, bubble level, cleaning drill bit, gonogo gauge, palette knife, funnel, cleaning patches and inspection mirror. The 4601 melt flow indexer is an affordable and easytouse tabletop instrument that tests the melt flow resistance mfr of a wide range of thermoplastics. The samples for testing were manufactured by using a filabot. The complete guide to electrical insulation testing. Here are some reasons why such discrepancies occur and what can be done about them. The sample can be in the form of virgin resin pellets or ground material from a finished thermoplastic product.
Mfi tester is capable of maintaining temperature from ambient to 350c. The test protocol above is used for defining all of the equipment used during the test ie. For good insulation, the resistance usually reads in the megohm range. This presentation is designed to be an informative introduction and guide to melt flow test, and to assist with. Source testing equipment to test melt flow index of plastic raw material and polymers. Melt flow index tester is widely used to test the flow rate of the polymer granules. Denomme a lorigine melt flow index ou melt index typiquement pour le. Melt flow index mfi measuring instruments and test equipment. Astm d1238 procedure a manual cut gravimetric melt flow rate mfr. Some instruments can also calculate the shear rate, shear stress, and viscosity in centipoise. Presto stantest is one the leading and renowned manufacturer, supplier and exporter of highly advanced melt flow index tester in indonesia. Generally, higher mfi polymers are used in injection. Since the polyox watersoluble resins wsr are provided as a powder, it is critical that the sample be homogeneous. Mfi tester melt flow index testing rheological testing of.
1045 774 1628 115 366 264 170 392 1377 1195 1527 723 1454 289 1541 1071 1112 302 902 891 1216 835 529 9 1501 1205 1569 1510 388 554 107 623 619 1311 297 699 785 1151