Fabrication Characteristics of Mineral Wool Fiber Used the Waste

A consequence of a loss of coolant accident is that the local insulation material is damaged and maybe transported to the containment sump where it can penetrate and/or block the sump strainers. An experimental and theoretical study, which examines the transport of mineral wool fibers via single and multi-effect experiments is being performed. This paper focuses on the experiments and simulations performed for validation of numerical models of sedimentation and resuspension of mineral wool fiber agglomerates in a racetrack type channel. Three velocity conditions are used to test the response of two dispersed phase fiber agglomerates to two drag correlations and to two turbulent dispersion coefficients. The Eulerian multiphase flow model is applied with either one or two dispersed phases.

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Study on the effect of hybrid fiber length on tensile strength of sealing composites

Journal of Engineered Fibers and Fabrics ◽

10.1177/1558925020968226 ◽

2020 ◽

Vol 15 ◽

pp. 155892502096822

Author(s):

Li Yuxian ◽

Liu Meihong ◽

Sun Junfeng ◽

Wang Juan ◽

Tian Shuo

Keyword(s):

Tensile Strength ◽

Fiber Length ◽

Uniform Design ◽

Cellulose Fiber ◽

Mineral Wool ◽

Interfacial Bonding ◽

Wool Fiber ◽

Pulp Fiber ◽

Hybrid Fiber ◽

Mineral Wool Fiber

The present paper aims at investigating the relationship between fiber length of hybrid fibers and the tensile strength of sealing composite materials. First, three kinds of fibers: cellulose fiber, aramid pulp fiber, and mineral wool fiber were sieved and their weight-average length was measured. Second, a uniform design method of U8 (43) was adopted to prepare sealing composites by the beater-addition process, and the properties of the tensile strength of the composite were examined. In the end, the relation model was concluded and verified using multi-linear regression analyzation and was further analyzed using micro mechanic theory and interfacial bonding mechanism. The results show that the regression equation can be used to estimate the tensile strength of composites with different hybrid fiber lengths. The tensile strength increased corresponding to the increase of the length of the cellulose fiber but decreased with the increase of the length of aramid pulp and mineral wool fiber. Particularly the fiber length of aramid pulp fiber had the most significant effect on tensile properties. The cases were decided by the comprehensive effects of fibers dispersion, interfacial bonding, and micromechanics.

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Fabrication Characteristics of Mineral Wool Fiber Used the Waste

Materials Science Forum ◽

10.4028/www.scientific.net/msf.510-511.602 ◽

2006 ◽

Vol 510-511 ◽

pp. 602-605

Author(s):

Ki Hwan Kang ◽

Sang Youl Kim ◽

Yong Su Um ◽

Bo Young Hur

Keyword(s):

Sandwich Panel ◽

Mineral Wool ◽

Wool Fiber ◽

Face Sheet ◽

Functional Effect ◽

Organic Form ◽

Curing Conditions ◽

Mineral Wool Fiber ◽

Good Environment

The development of mineral wool core sandwich panel depends on the reaction of resin on mineral wool and face sheet. The most important factors in developing the mineral wool core are optimization of the Curing system and density of the used resin. In addition, this product considers the functional effect and good environment instead of organic form core. This paper studied the curing conditions, the density of used resin, and the functional effect after manufacturing the mineral wool core.

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The Effect of Acidity Coefficient on Crystallization Behavior of Blast Furnace Slag Fibers

High Temperature Materials and Processes ◽

10.1515/htmp-2015-0280 ◽

2018 ◽

Vol 37 (1) ◽

pp. 33-37

Author(s):

Tie-Lei Tian ◽

Yu-Zhu Zhang ◽

Hong-wei Xing ◽

Jie Li ◽

Zun-Qian Zhang

Keyword(s):

Thermal Stability ◽

Crystallization Kinetics ◽

Blast Furnace Slag ◽

Chemical Structure ◽

Crystallization Behavior ◽

Three Dimensional ◽

Mineral Wool ◽

Mineral Wool Fiber ◽

Kinetics Of ◽

Furnace Slag

AbstractThe chemical structure of mineral wool fiber was investigated by using Fourier Transform Infrared Spectroscopy (FTIR). Next, the glass transition temperature and the crystallization temperature of the fibers were studied. Finally, the crystallization kinetics of fiber was studied. The results show that the chemical bond structure of fibers gets more random with the increase of acidity coefficient. The crystallization phases of the fibers are mainly melilites, and also a few anorthites and diopsides. The growth mechanism of the crystals is three dimensional. The fibers with acidity coefficient of 1.2 exhibit the best thermal stability and is hard to crystallize as it has the maximum aviation energy of crystallization kinetics.

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The internal structure of medullated wool

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100111987 ◽

1984 ◽

Vol 42 ◽

pp. 388-389

Author(s):

Leo Barish

Keyword(s):

Light Microscopy ◽

Internal Structure ◽

Wool Fiber ◽

Guard Hair ◽

Bright Field ◽

Wool Fibers ◽

Thin Skin ◽

Air Pockets

Although most of the wool used today consists of fine, unmedullated down-type fibers, a great deal of coarse wool is used for carpets, tweeds, industrial fabrics, etc. Besides the obvious diameter difference, coarse wool fibers are often medullated.Medullation may be easily observed using bright field light microscopy. Fig. 1A shows a typical fine diameter nonmedullated wool fiber, Fig. IB illustrates a coarse fiber with a large medulla. The opacity of the medulla is due to the inability of the mounting media to penetrate to the center of the fiber leaving air pockets. Fig. 1C shows an even thicker fiber with a very large medulla and with very thin skin. This type of wool is called “Kemp”, is shed annually or more often, and corresponds to guard hair in fur-bearing animals.

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