ETAL SURFACE TREATMENTS

CHO cell attachment to Si nanosponges/nanowires formed by metal chemical etching, including effects of surface treatment with different organosilanes Yang etal. (2010)... 

Park, O. K., etal. (2QIO). Effect of Surface Treatment with Potassium Persu fate on Dis-persion Stability of Multi-Walled Carbon Nanotubes. Materials Letters, 64(6), 718-721. 

Fig. 6 Hardness profile of Tl-22V-4AI after various surface treatments. Because the cold-forged TI-22V-4AI beta alloy was being evaluated as a candidate material for mass-produced valve-spring retainers, oxygen hardening in air was ultimately selected. Source M. Mushiake etal., Development of Titanium Valve Spring Retainers, SAE Technicai Paper Series No. 910428, SAE, 1991...

Nakamura, M. etal. (2007) Fiber surface treatment and mechanical properties... 

In the above studies, the influence of various deliberately introduced chemical contaminants on the prebond condition of the adherends has been studied. Also of significance is the influence of prebond handing and the ability of some surface treatments to accommodate physical damage as well as contamination this aspect has been investigated by McNamara etal. (1979). 

Crack control in set and hardened concrete The low modulus polypropylene fibres at the content of 0.1% by volume applied for plastic shrinkage crack control are not effective for crack control of hardened concrete, as shown in Table 10.4 [50]. However, Sanjuan etal. [55] found that low volume propylene reinforcement could lead to somewhat decreased initial cracking of the concrete in the plastic stage, and this resulted in somewhat lower corrosion rates of steel reinforcement in the hardened concrete. The data indicate that only the fibres which received special surface treatment of roughening had an influence on reducing cracking. 

The surface wettability of heat-treated wood decreases due to a reduction in the hydroxyl content of the modified wood (Pdtrissans etal., 2003). There is a reduction in the water-sorption capacity, which is related to a reduction in the number of primary sorption sites (OH groups) within the wood cell wall, largely as a result of the removal/degradation of the hemicellulosic component. As remarked upon earlier, hygroscopic properties are strongly influenced by the treatment method employed. Podgorski etal. (2000) heated... 

Kharazipour etal. (1998) used a peroxidase enzyme in combination with H2O2 to activate the surface of TMP fibres for self-bonding. Fibres were activated in a wet system, then dewatered and fluffed out before pressing at 190 °C for 5 minutes. The best IBS recorded for boards of 5 mm thickness made from the activated fibres was 0.55 MPa. The IBS was found to be dependent upon the pH of the treatment solution, the time of treatment and the board density. The authors noted that phenoloxidase gave comparable results to laccase, which was unexpected, since it was thought that the phenoloxidase would lead only to depolymerization of the lignin. 

Ahmed Kabir etal. (1992) treated wood with DMDHEU as well as DMDHEU combined with a vinyl polymer, and determined the dimensional stability of the wood. Methane sulphonic acid was used as a catalyst in both cases. DMDHEU treatment resulted in a 50 % reduction in radial swelling following immersion in water for 100 minutes, with the combined treatment being snperior. However, the ASE (one cycle) of DMDHEU treated wood (30%) was snperior to that fonnd for the combined treatment (17%). DMDHEU appeared to be stable to hydrolysis over a number of wetting cycles. When DMDHEU-treated samples were exposed in ontdoor weathering trials, they exhibited considerable variation in moistnre content and developed severe surface checks, whereas the combined treatment showed snperior performance. 

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