NONWOVEN TENSILE PROPERTIES

A number of EOC’s new self-crosslinking

copolymers of acrylic esters have been

evaluated for their effect on the tensile

properties of paper and glass fiber non-

wovens.

BC 6217 46 -33°C

BC 6245 46 - 5°C

BC 6280 46 +30°C

PRODUCT SOLID CONTENT (%) Tg

• Paper: Whatman #4 filter paper

• Glass fiber: Whatman GF/A microfiber filter

TEST METHOD

TEST SUBSTRATES

Application weight • Binder was applied at 25% dry on weight of fiber.

Sample preparation • Binder is applied wet to the desired coating weight. • Filters are dried for 5 minutes at 160°C. • Strips are cut out (width: 50mm, length: 250mm). • For wet tensile strength measurements the coated filters are put in a 1g/l wetting agent in water solution.

Tensile measurement • Tensile measurements are tested on a Zwick tensile tester • Test speed: 100mm/min • All results are expressed as N/mm

©April 2015

BC 6217 10.8 3.9

BC 6245 13.4 5.4

RESULTS

BC 6217 4.2 1.0

BC 6245 5.4 1.0

BC 6280 2.4 1.9

Paper

Glass Fiber

Curing temperature can play an important role on the final performance of the binder. BC 6217 was coated onto Whatman #4 filter paper and on Whatman

GF/A microfiber filter glass fiber (25% bwof) and cured for 5 minutes at two different temperatures, 120°C and 150°C. The table below clearly shows a marked

improvement in the tensile properties of the product cured at the highest temperatures.

REMARKS

120 °C 9.4 1.1 2.9 0.4

150 °C 10.8 3.9 4.2 1.0

Dry Wet Dry Wet

CURE TEMPERATURE PAPER GLASS FIBER

TENSILE STRENGTH (N/mm)

PRODUCT DRY TENSILE STRENGTH (N/mm) WET TENSILE STRENGTH (N/mm)

PRODUCT DRY TENSILE STRENGTH (N/mm) WET TENSILE STRENGTH (N/mm)

All recommendations for the use of our products, whether given by us in writing, orally, or to be implied from data or test results obtained by us, are based on the current state of our knowledge at the time such recommendations are made. When additional information is obtained, these recommendations may be updated. They may also be influenced by circumstances outside our control. Notwithstanding such recommendations, the user is responsible to determine that the product as supplied by us, is suitable for the process or purpose he intends to use it. The user of the product is solely responsible for compliance with all laws and regulation applying to the use of the product. Since we cannot control the application, use or processing of the products, we do not accept responsibility therefore. The user shall ensure that the intended use of the products will not infringe in any party’s intellectual property rights.

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