Polymer Testing Lab
Tamilnadu Test
House Offers wide range of testing in Polymers to measure its physical and
mechanical characterisation, Thermal characterisation, Rheological
characterisation, and its optical properties by using the following tests.
1.
Fourier
Transform Infrared Spectroscopy (FT-IR)
2.
Attenuated
Total Reflectance Accessories (ATR)
3.
Scanning
Electron Microscopy (SEM)
4.
Energy
Dispersive X-Ray Spectroscopy
5.
Differential
Scanning Calorimetry (DSC)
6.
Thermo
gravimetric Analysis (TGA)
7.
Melt
Flow Indexer (MFI)
8.
Filler
Content and ID
9.
Particle
Cleanliness
10. Hardness Testing
11. Real Time X-Ray
12. Tensile Testing
13. Compression Testing
14. Flex Modulus
15. Young’s Modulus
16. Viscosity
17. Barrier including WVTR, OTR and various gases
Ash Content
Test:
This test helps in determining the
number of fillers in a specimen after the polymer has been burned off and is
suitable for the determination of the ash content of rubber compounding
materials. The test methods may be used for quality control, product acceptance,
or research and development.
Test Method: ASTM D2584, D5630, ISO 3451
Bulk Density Test:
This test helps in determining the
weight per unit volume of material. The bulk density (morphology) of the rubber
contributes significantly to the binder’s performance and is used as a property
in the specification of the rubber. This test method provides a measure of the
crumb rubber’s bulk density.
Test Method: ASTM D1895B
Compression Set Under Constant
Deflection:
This test helps in determining the
ability of elastomeric material to maintain elastic properties after prolonged
compressive stress. The set test is used to determine the quality of rubber
compounds and their applicability to certain types of usage.
Test Method: ASTM D395 B
Compression Properties Test:
This test helps in determining the
behaviour of a material when it is subjected to a compressive load. The
compressive strength of a material is the force per unit area that it can
withstand during compression. This test helps us to design the rubber compound
based on its application and service conditions.
Test Method: ASTM D695, ISO 604
Charpy Impact Test:
This test helps in determining the
material’s resistance to resist impact from a swinging pendulum. This test
provides comparative values for various plastics easily and quickly. In this
test, as in a flexural test, a standard test bar, 80mm long and with a
cross-section of 4mm × 10mm, is placed on support 62mm apart, resting on the
narrower side.
Test Method: ISO 179
Carbon Black in Olefin Plastic Test:
This test helps in determining the
carbon black content in olefin materials like polyethene or polypropylene that
do not contain non-volatile additives or filters.
Test Method: ASTM D1603
Coefficient Of Friction Test:
This test helps in determining the
kinetic and static resistance of one surface being dragged across another. This
test determines the coefficient of friction of plastic films, but can also be
used for paper samples. The apparatus must follow international standards.
Features: Lead screwdriver mechanism, Vacuum suction bed for film or paper,
Variable speed control, Temperature control option for hot slip, Digital
display for force and Coefficient of Friction, Static and dynamic measurement,
Adjustable cross arm stops.
Test Method: ASTM D1894
Deflection Temperature Under Load (DTUL or HDT) Test:
This test helps in determining the
temperature at which a standard test bar deflects a specific distance under a
load.
Test Method: ASTM D648, ISO 75
Density And Specific Gravity Test:
This test helps in determining the
mass per unit volume of material and the ratio of the mass of a given volume of
material at 23℃ to the same volume of deionized water.
Test Method: ASTM D792, ISO 1183
Durometer
Hardness (Shore Hardness) Test:
This test helps in determining the
relative hardness of soft material, usually plastic or rubber. This test
measures the penetration of a specific indentor into the material under
specified conditions of force and time.
Test Method: ASTM D 2240
Differential Scanning Calorimeter (DSC):
This test helps in determining the
material, differentiating homopolymers from copolymers or in characterizing
materials for their thermal performance.
Test Method: ASTM D3417 / D418 / E1356, ISO 11357
Dielectric Constant And Dissipation Factor Test:
This test helps in determining the
ability of an insulator to store electrical energy and the reciprocal of the
ratio between the insulating materials capacitive reactance to its resistance
at a specified frequency.
Test Method: ASTM D150, IEC 60250
Flexural Properties Test:
This test helps in determining the
force required to bend a beam under 3 points during loading conditions. The
flexural strength of a material is defined as its ability to resist deformation
under load.
Test Method: ASTM D790, ISO 178
Flammability Test:
This test helps in determining the
relative rate of burning of self-supporting plastics. This test is mainly used
for quality control, production control and material comparison.
Test Method: UL94, ASTM D635
FTIR (Fourier Transform Infrared Spectrometry) Test:
This test helps in identification
of polymers. FTIR (Fourier Transform Infrared Spectroscopy) is a superb
analytical tool for screening and profiling polymer samples.
Test Method: ASTM E1252
Impact Resistance Of Plastic Film Test:
This test helps in determining the
impact strength or toughness of a plastic film. This test uses a single dart
configuration and a single drop height while varying the weight of the dart.
Test results can be used either as an evaluation of quality control or for end
use comparisons.
Test Method: ASTM D1709, ISO 7765-1
Izod Impact Test:
This test helps in determining a
material’s resistance to an impact from the swinging pendulum. The result of
the Izod test is reported in energy lost per unit of specimen thickness (such
as ft-lb/in or J/cm) at the notch (‘t’ in the graphic at right).
Test Method: ASTM D256, ISO 180
Melt Flow Index (MFI) Test:
This test helps to measure the rate
of extrusion of thermoplastic through an orifice at a prescribed temperature
and load. The Melt Flow Index is a measure of the ease of flow of the melt of a
thermoplastic polymer. It is defined as the mass of polymer in grams flowing in
10 minutes through a capillary of specific diameter and length by a pressure
applied via prescribed alternative gravimetric weights for alternative
prescribed temperatures
Test Method: ASTM D1238, D3364, and ISO 1133
Oxygen Concentration To Support Candle-Like Combustion of Plastics
Test:
This test helps in determining the
minimum concentration of oxygen/nitrogen mixture that will support a burning
flame in a plastic specimen.
Test Method: ASTM D2863
Peel Test:
This test helps to measure the
strength required to pull apart a bonded surface. Peel test is one way to
characterize adhesive bonds. It is used extensively to evaluate the bonding
strength of the tape, adhesives and flexible substrates, including rubber,
films, biomaterials, dental materials, medical packaging and consumables. A
typical test involves peeling two bonded flexible adhesives from each other or
peeling a flexible bonded adhesive from a rigid substrate.
Test Method: ASTM D903, D1876, D3167
QUV (Accelerated Weathering) Test:
This test helps in determining the
damaging effects of long term outdoor exposure of materials and coating, by
exposing test samples to varying conditions of the most aggressive components
of weathering –ultraviolet radiation, moisture and heat.
Test Method: ASTM D4329, D4587, ISO 4892, SAE J2020
The resistance Of Plastics To Chemical Reagents Test:
This test helps in the evaluation
of plastic material for its resistance to chemical reagents, simulating their
performance in the potential end-user environment. These procedures deal with
the evaluation of all plastic materials including hot-moulded, cast, laminated
resinous products, cold-moulded, and sheet materials for resistance to chemical
reagents. These methods include provisions for reporting changes in dimensions,
weight, strength and appearance properties. Standard reagents are defined to
establish results on a comparable basis.
Test Method: ASTM D543
Shear Strength by Punch Tool Test:
This test helps in determining the
load at which a plastic film will yield when sheared between two metal edges.
Shear strength obtained by the use of punch-type tooling is one of the recognized
methods of comparing materials or obtaining data for engineering design
purposes or both.
Test Method: ASTM D732, A2LA
Surface Resistivity And Volume Resistivity Test:
This test helps in determining the resistance encountered
by the leakage current along the surface of insulating material. Volume
resistivity is the resistance to leakage current through the body of insulating
material. The higher the surface/volume resistivity, the lower the leakage
current and the less conductive the material is.
Test Method: ASTM D257, IEC60093
Tear Resistance Of Plastic Film By Pendulum Method (Elmendorf Tear)
Test:
This test helps in measuring the
force required to propagate an existing slit a fixed distance to the edge of
the test sample.
Test Method: ASTM D1922
Tensile Test Of Plastics:
This test helps in measuring the
force required to break a specimen and the extent to which the specimen
stretches or elongates to that breaking point. The ability of a material to
resist breaking under tensile stress is one of the most important and widely
used properties of materials used in structural applications. The force per
unit area (MPa or psi) required to break a material in such a manner is the
ultimate tensile strength or tensile strength at breaking point.
Test Method: ASTM D638, ISO 527
Tensile Tests Of Rubber:
This test helps in determining the
force required to break a specimen and the extent to which the specimen
stretches or elongates to that breaking point. The ability of a material to resist
breaking under tensile stress is one of the most important and widely measured
properties of materials used in structural applications. The force per unit
area (MPa or psi) required to break a material in such a manner is the ultimate
tensile strength or tensile strength at breaking point.
Test Method: ASTM D412
Thermogravimetric Analysis (TGA):
This test helps in determining the
composition of the sample, including volatiles and inert fillers as well as
indications of thermal stability. Thermogravimetric (TGA) analysis is used for
determination of endotherms, exotherms, weight loss on heating or cooling, and
more. Materials analysed by TGA include polymers, plastics, composites,
laminates, adhesives, food, coatings, pharmaceuticals, organic materials,
rubber, petroleum, chemicals, explosives and biological samples.
Test Method: ASTM E1131, ISO 11358
Vicat Softening Temperature Test:
This test helps in determining the
temperature at which a flat-ended needle penetrates the specimen to the depth
of 1 mm under a specific load.
Test Method: ASTM D1525, ISO 306
The
Viscosity of Polymers Test:
This test helps in determining the
molecular weight of polymers. This test covers the determination of the dilute
solution viscosity of polymers.
Test Method: ASTM D2857, D4603
Water Absorption Test:
This test helps in determining the
amount of water absorbed under specified conditions. The tendency of plastics
to absorb moisture simply cannot be overlooked since even the slight amount of
water can significantly alter some key mechanical, electrical, or optical
property. Water absorption characteristic of plastics largely depends upon the
basic type of material and the final composition of the material.
Test Method: ASTM D570
Xenon-Arc Exposure (Weather-Odometer) Test:
This test helps in determining the
damaging effects of long term outdoor exposure of material and coating.
Test Method: ASTM D2565, D4459, G155, SAE J1885, J2527, J1960
For more
details, please write us to info@tn-th.com
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