Silanes effective adhesion

We have noted that the proteolysis step appears to be the most critical m the whole technique Variability m signal intensity is virtually always caused by incomplete or excessive proteolysis, the only remedy is repetition of the experiment Silane is an effective adhesive for most cells and sections, although occasionally, high concentrations of proteinase K can cause repeated section dehiscence. Under these circumstances, reduction of the proteinase K concentration or, alternatively, the use of pepsin HC1 may prove more effective these, however, reduce the sensitivity of the method. 

Silane coupling agents are very effective adhesion promoters between glass and certain thermoplastic polymers where no chemical reaction between coupling agent and polymer is observed. 

Effect of silanes on adhesion strength of latex formulations... 

A further development of silane curing agents are silanes in which one or two of the silicon functional groups are replaced by the inert methyl or aryl groups, which impart special effects (adhesion, mechanical properties, etc.). 

As discussed above, silane primers have been investigated extensively for adhesive bonding of steel substrates and have been shown to be quite effective, but the extent to which these are in current commercial use is not known. 

Ethylene-vinyl acetate Fetterman [37] reinforced compounded ethylene-vinyl acetate (EVA) copolymer by using short hbers and found that silane coupling agents were effective at establishing improved hber-matrix adhesion. Das et al. [38] prepared carbon fiber-filled conductive composites based on EVA and studied the electromagnetic interference shielding effectiveness of the composites. 

The ionic phosphonates like NTMP are effective hydration inhibitors because they can form an insoluble complex with the oxide surface. They are useful as epoxy adhesive couplers in cases where the adhesive and its curing cycle are compatible with the adsorbed phosphonate molecule. (14) Wedge test results indicate that in two epoxy-aluminum systems studied, certain organosilanes tend to both increase the epoxy-metal bond durability and maintain hydration resistance. The results of anodic polarization experiments further suggest that these silane films are effective against localized pitting. 

When amino silane primed wafers were baked at 400°C followed by applying polyamic acid, silane had lost its effectiveness as an adhesion promoter. Results are shown in Table VII. On the other hand when polyamic acid solution was spun onto a wafer that was first primed with silane then coated with polyamic acid solution and baked at 400°C, excellent adhesion was retained. 

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