Dry Strength
Charge and the dry-strength performance of polyampholytes. Part 1: Handsheet properties and polymer solution viscosity
... As indicated by the present results, the conformation of polyampholytes in bulk solution, in the presence and in absence of PAC, is a key factor to explain the adsorption on fibers and the development in dry ...
21
Bonding between cellulosic fibers in the absence and presence of dry-strength agents
... sufficient strength to contain and protect various ...sion strength can be improved by the use of dry-strength agents (Smith ...Compressive strength also can be increased by papermaking ...
38
Deposition of polyelectrolyte complexes as a mechanism for developing paper dry strength
... the strength increase was due to polyelectrolyte complex (PEC) formation in the bulk phase, followed by deposition of PECs onto the ...in dry strength, beyond would could be achieved by treatments ...
21
Recovered kraft fibers and wet-end dry-strength polymers
... with dry-strength polymers such as cationic starch, copolymers of acrylamide, and high-charge cationic ...not dry-strength polymers are ...that strength-enhancing additives can ...
12
Dry-strength development by polyelectrolyte complex deposition onto non-bonding glass fibres
... achieving strength increases similar to those often associated with size-press addition of starch ...substantial strength gains by interacting cationic wet-end polymers with anionic colloidal substances ...
31
Cationization of oat beta-D glucan as a dry-strength additive for paper
... a dry-strength agent for papermaking by treating it to increase the amount of negatively charged carboxyl groups ...tensile strength, burst strength, and folding endurance when sus- pensions ...
8
Charge and the dry-strength performance of polyampholytes. Part 2. Colloidal effects
... The motivation for the present work was to help explain the superior performance of polyampholytes, polymers that bear both positive and negative ionizable groups, for the enhancement of bonding in paper. It has been ...
28
Charge and the dry-strength performance of polyampholytes. Part 3. Streaming potential analysis
... in dry-strength, fine-particle retention, and the rate of dewatering often are achieved as the electrokinetic potential of furnish solids is reduced towards ...
21
Fiber surface saturation as a strategy to optimize dual-polymer dry strength treatment
... their dry strength effects have not been well ...increased dry strength, whereas addition of a pre-mixed complex of the oppositely charged polyelectrolytes did ...
19
The Synthesis, Characterization, and Application of Polysaccharides-Based Additives to Increase the Dry Strength of Paper.
... for dry strength in recycled paper OCC (Old Corrugated ...burst strength of the modified OCC pulp sheet increased ...tear strength as compared to the control ...
227
Unique behavior of polyampholytes as dry-strength agents
... polymers that contain both positive and negative groups. Though the superior ability of polyampholytes to impart dry strength to paper has been reported (1-6), many questions remain regarding the mechanism ...
14
Colloidal Behavior of Amphoteric Dry Strength Agents
... bond strength per unit of bonded area [Howard and Jowsey, ...tensile strength by increasing the bond strength per unit bonded area b but not the relative bonded area ...tensile strength by ...
103
Effect of Partial Replacement of Fine Aggregate by Waste Glass Powder on Compressive Strength and Flexural Strength of Concrete
... The glass is non-biodegradable material and it is not suitable for landfill although glass can be recycled and reused but the cost of recycled glass is more than that of the virgin glass. Glass is a general product that ...
6
The Development of Moisture Sensitivity Test for Compacted Asphalt
... In order to overcome the disadvantages of the existing method to determine moisture sensitivity of asphalt, several new approaches were developed to improve the test method to evaluate the moisture sensitivity of asphalt ...
10
Evaluation of shear bond strength on dry and moist dentin when treated with different desensitizing andadhesive systems
... a dry state; the molecules are arranged more ...bond strength values in case of moist dentin than in case of dry dentin especially with the use of ethanol based adhesive (moist: ...and dry: ...
7
Comparative Efficacy of Tagetes erecta and Centella asiatica Extracts on Wound Healing in Albino Rats
... and scarring to the patient. At the site of wound closure a flexible and fine scar with high tensile strength is desired [13,14]. The healing process begins with tissue reposi- tion by cell proliferation presented ...
5
Synthesis of polymers containing isocyanate groups and use of polymers as paper dry and wet strength additives
... Because the paper strength increased slowly after the polymer content reached 2% in paper, as described above, the dry and wet strengths of treated sheets with 2[r] ...
6
Evaluating the Effect of Lucobit on Moisture Susceptibility and Mechanical Performance of Bitumen and Asphalt Mixtures
... It is a simple and low-cost test to evaluate water effect on bitumen and aggregate this test is for uncompacted mixes. In this test a specials amount of bitumen and aggregate is boiled in hot water under special ...
13
Experimental Investigation on Pervious Concrete as an Environmental Solution for Pavement
... The measuring and testing of test specimens was undertaken as soon as possible after being removed from the water. All specimens were tested in a wet condition and excess water removed from the surface. Dimensions of ...
6
AN EXPERIMENTAL STUDY ON PERVIOUS CONCRETE AS AN ASPHALT LAYER
... As in ancient concreting, normal hydraulic cement, fifty three grades (I.S-12269, 1989) and PPC (IS1489: half I 1991) is also utilized in pervious concrete. Additionally, supplementary cementations materials like flyash ...
10