Mechanism by which tension on the fibrous filler affects the structure and the strength of wound glass-plastics

1978 ◽  
Vol 13 (3) ◽  
pp. 375-379
Author(s):  
E. F. Kharchenko ◽  
V. D. Protasov ◽  
A. A. Filipenko ◽  
V. L. Polyakov
Keyword(s):  
Fibrous Filler

Study Of Structure Formation Of Organic-Mineral Compositions With Fibrous Filler By Electron Microscopy Method

2019 ◽  
pp. 41-47
Keyword(s):  
Electron Microscopy ◽  
Structure Formation ◽  
Mineral Composition ◽  
Bending Strength ◽  
Cement Stone ◽  
Hydrated Cement ◽  
Fibrous Filler ◽  
Organic Mineral ◽  
Microscopy Method ◽  
Mineral Compositions

The article presents the study of processes of structure formation of cement stone and products of hardening of organic-mineral compositions with fibrous filler (shavings) by the electronic scanning microscopy method. It is established that the additive-free cement stone at the age of 28 days has a dense and homogeneous structure, consists of calcium hydro-silicates, Portlandite and calcite - newgrowths characteristic for cement systems. Cellulose fibers, which make up the bulk of the substance of shavings, are sufficiently active, which determines the high adhesion of the hydration products of the cement binder to their surface. It is shown that the introduction of shavings into the organo-mineral composition leads to inhibition of cement hydration processes. Organo-mineral compositions with different shavings content (two compositions) were analyzed. The first composition is characterized by a fairly dense structure, the cement stone consists of globular nanoscale nuclei of hydrosilicates, Portlandite and calcite. The second composition has a loose porous structure, cement stone consists of non-hydrated cement grains, newgrowths are represented by calcite and vaterite. The structure of the contact zone "osprey fiber-cement stone" in the organo-mineral composition of the first composition indicates a good adhesion of the filler surface with the phases of hydrated cement. The use of shavings as a fibrous filler (the first composition) increases the tensile and bending strength, as well as the wear resistance of organo-mineral compositions. The data obtained by scanning electron microscopy are confirmed by the results of studying the processes of structure formation of cement stone by quantitative x-ray phase analysis.

?Banavis?R viscose fibrous filler

1989 ◽  
Vol 21 (1) ◽  
pp. 62-64
Author(s):  
N. A. Dorofeev ◽  
G. M. Abramychev ◽  
V. A. Kuznetsov ◽  
V. P. Ivanov
Keyword(s):  
Fibrous Filler

Work of a screw-type plasticizer of the vertical type during the processing of materials with a fibrous filler

1980 ◽  
Vol 16 (2) ◽  
pp. 102-106
Author(s):  
B. A. Petrov ◽  
V. V. Skachkov ◽  
K. A. Salazkin
Keyword(s):  
Fibrous Filler

Study of the Residual Length of Discrete Carbon Fibers in Polyetherimide Based Composites for 3D-Printing

2021 ◽  
Vol 899 ◽  
pp. 309-316
Author(s):  
Ismel V. Musov ◽  
Azamat L. Slonov ◽  
Azamat A. Zhansitov ◽  
Zhanna I. Kurdanova ◽  
Svetlana Yu. Khashirova
Keyword(s):  
Mechanical Properties ◽  
3D Printing ◽  
Carbon Fibers ◽  
Physical And Mechanical Properties ◽  
Melt Viscosity ◽  
Viscosity Modifier ◽  
Fibrous Filler ◽  
Linear Dimensions ◽  
Filler Particles ◽  
Filled Composite

The influence of the multiplicity of extrusion and melt viscosity on the residual length of discrete carbon fibers in composites based on polyetherimide for 3D-printing is estimated. A technique for measuring the residual length of carbon fibers in composites is proposed. The residual length of carbon fibers in composites containing from 10 to 40% fibrous filler with different initial linear dimensions has been determined. It was found that the addition of a melt viscosity modifier to a carbon-filled composite helps to maintain the linear dimensions of the fiber filler particles, thereby increasing the physical and mechanical properties of the material.

Sign in / Sign up

Export Citation Format

Share Document