Wet tensile strength

We plot the wet tensile strength on the vertical axis, and the percent sizing on the horizontal axis. 

Ethylene in the polymer provides softness to the product and is low cost. However, the softness in the product often comes at the expense of its wet tensile strength. Increasing the level of self crosslinkable monomer in the polymer often is not a viable option to increase the wet tensile strength. 

Following are the tests described in this Spec wet tensile strength, adhesion at low temp, moisture-vapor transmission rate, water-penetration rate corrosion, accelerated aging, dry tensile strength and tearing resistance... 

Wet tensile strength was determined on a constant rate of elongation tensile tester using specimens 1.5 cm wide and a length of 10 cm. The samples were soaked for two hours In distilled water prior to testing. 

Wet tensile strength BS 2922 (PT2) 1984 (95) ISO 3781. This is a method of determining the wet tensile strength of any paper or board after immersion in water. 

The tensile strength data show comparable values for the two samples. Similar dry and wet tensile strength data (Ibs/in) are observed at the 0.25%, 0.50% and 0.75% levels of the two resins. In particular, the wet tensile strength of both resins increases after curing. Thus, enzymatic synthesis produces fully acceptable polymers with commercially viable properties. 

Table 3 gives the comparison between Resin B (enzyme-catalyzed product) and the chemical counterpart. The tensile strength test also shows comparable values between the enzymatic and the chemical products. The wet tensile strength of both resins also increases after curing. 

Effect of Storage Time Table 3 shows the effect of storage time of irradiated NR latex on viscosity, wet tensile strength, and stickness... 

Material Form Length (in.) Width (m) Cross Section Specific Gravity Breaking Tenacity, (g/den) Dry-wet Tensile Strength (lO psi) Elongation, (%) Dry Wet ... 

Resistance to liquid penetration Bursting strength - dry Bursting strength - wet Tensile strength - dry Tensile strength - wet... 

Methyl syringate - - unbleached kraft Wet tensile strength increase [54]... 

Figure 6. Wet tensile strength after 10 seconds and 30 minutes soaking time of paper prepared with 0.25% or 0.50 % polyamide-amine epichlorohydrin resin...

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