Strength of two-layer heterogeneous film materials

1971 ◽  
Vol 3 (5) ◽  
pp. 550-554
Author(s):  
V. E. Gul ◽  
N. M. Dvoretskaya ◽  
L. N. Shapkina
Keyword(s):  
Small ◽  
2021 ◽  
pp. 2100722
Author(s):  
Junya Cui ◽  
Zhenhua Li ◽  
Annan Xu ◽  
Jianbo Li ◽  
Mingfei Shao

1995 ◽  
Vol 273 (5) ◽  
pp. 496-504 ◽  
Author(s):  
O. Karlsson ◽  
H. Hassander ◽  
B. Wessl�n

Panoptikum ◽  
2021 ◽  
pp. 39-60
Author(s):  
Carlo Comanducci

Considered in its articulation with an idea of “slow” cinema, the label “fast cinema” suggests three characteristics: fast-paced action, hyperkinetic cinematic style, and irreflexive consumption. Not only does fast cinema suggest these three characteristics, however, it also suggests that they directly correspond to each other so that, in a “fast” film, fast-paced action would be seamlessly rendered through “fast” cinematic enunciation and this rendering would necessarily result in an escapist, ready-to-consume film product. It is more by this correspondence, I think, than by any of these elements on its own that a certain understanding of “fast” cinema is established. Against this understanding, through a variety of contrasting examples, the article argues that the impression of fastness and that of slowness are both the matter of a tension between different temporalities and a complex combination of heterogeneous film elements, and that the articulation of “fast” and “slow” cinema itself depends less on the formal characteristics of different kinds of film than on a disciplinary understanding of spectatorship, which pretends to derive from these formal characteristics different and unequal forms of film experience.


2022 ◽  
Author(s):  
Guomin Wu ◽  
Jian Chen ◽  
Zhaozhe Yang ◽  
Can Jin ◽  
Guifeng Liu ◽  
...  

Abstract Due to the complex heterogeneous film forming process of two-component waterborne polyurethane (2K-WPU), the crosslinking reaction rate of 2K-WPU cannot meet the demand of efficient application in coatings. In order to improve the crosslinking reaction rate of 2K-WPU, a waterborne polyol containing tertiary amine groups was synthesized from rosin based epoxy resin and secondary amine compound, and then autocatalytic 2K-WPU was prepared by crosslinking the rosin based waterborne amino polyol with polyisocyanate. The structure of the polyol from rosin based epoxy resin was characterized with Fourier infrared (FT-IR) and nuclear magnetic resonance (NMR). The crosslinking kinetics and the crosslinked product of the rosin based waterborne amino polyol were also compared with a commercial acrylic polyol. It was shown from the results that the crosslinking reaction rate of the rosin based waterborne amino polyol was faster than that of the commercial acrylic polyol, which indicated the tertiary amine groups chemically bonded in the rosin based polyols could autocatalyze the crosslinking reaction of 2K-WPUs with catalysts free. The film of the rosin based waterborne amino polyol had excellent impact strength, adhesion, flexibility, hardness, gloss, fullness and solvent resistance, showing a good application prospect in the field of waterborne coatings.


2020 ◽  
Vol 57 (19) ◽  
pp. 193102
Author(s):  
李增林 Li Zenglin ◽  
左然 Zuo Ran

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