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Basalt fiber

2016-01-11

Basalt fiber, basalt stone is at 1450 ° c ~1500 ° c melting through Platinum-rhodium alloy wire bushing high-speed drawing of continuous fiber. Similar to glass fibers, the performance of high strength between s-glass fiber and e-e-glass fibers, natural color of basalt fibers are generally Brown, some like gold. Basalt fiber is an emerging new Green high performance inorganic fibers, it is made of silicon dioxide, aluminium oxide, calcium oxide, iron oxide and titanium dioxide and other oxides, composed of basalt stone, after melting, through drain Board quickly drawn into. Basalt continuous fibers not only stability, but also has good electrical insulation, resistance to corrosion, burning resistance, high temperature resistance and other properties. In addition, the production of basalt fibers produce less waste, less pollution, waste can be directly transferred to the ecological environment, without any harm, so it is a truly green, eco-friendly materials. China has put our focus on the development of four major fibers of basalt fiber (basalt fiber, carbon fiber, Kevlar, ultra high molecular weight polyethylene fiber), basically have the same industrial production in China. Continuous basalt fiber in fiber reinforced composites, friction materials, ship building materials, insulation, automotive industry, high temperature filter fabric and protective aspects of a wide range of applications in the field.

Material characteristics

Basalt fiber surface more smooth, surface can lower, after surface modified sex Hou, its surface increased Nano SiO2 particles, effective to improve fiber surface rough degrees, increased has microbial and carrier between of effective contact area; modified sex Hou surface has yang Ion of exists, carrier surface potential increased, carrier surface with positive load, using electrostatic suction promote microbial fixed, conducive to microbial fixed of; modified sex Hou surface of activity functional groups, increased has carrier of surface can, Containing hydroxyl and carbonyl groups or carboxyl groups about adherence and growth have a positive effect on the carrier surface. Through the basalt fiber surface modification of carrier so that it has a good performance of hydrophilic and microbial load, so that it can load more biomass and high microbial activity for a long time, in order to achieve more effective through bio-degradation of pollutants in water.

Technology application

Fiber surface modification technology of the main surface modification technology electroplating, electroless plating/surface modification technology, modified by plasma surface modification technology and coating technology, which the coating modification of the most widely used, primarily to improve the mechanical and environmental aging resistance and other properties of materials. Ying Shuni [7] in the basalt fiber (BF) reinforced polypropylene (PP) composite system, introduce polystyrene (PS) and acrylic acid hydroxy ethyl ester (PHEA) block copolymer macromolecular coupling agent (PS-b-PHEA) to improve the performance of the interface. G.J. Wang[8] modification of basalt fiber by using low-temperature plasma technology, increase surface roughness and chemical stability, the introduction of surface active groups can improve their adhesion properties. Denni Kurniawan[9] glow plasma polymerization of basalt fiber/poly lactic acid composite material mechanical properties of strength and modulus of 45% and 18%, respectively.

Will basalt fiber as water purification with carrier material for new of research direction, based on microbial carrier fixed of theory of guide Xia, play environmental new material basalt fiber of advantage and environment friendly characteristics, application fiber material surface modified sex of method, improve carrier surface can, and biological affinity sex, created new environment friendly type biological carrier, through application research, evaluation basalt fiber carrier of performance, is expand basalt fiber material application field of new direction. Basalt fibre as carrier materials for water purification is a blank field, basalt fibers have as microbial carrier General properties, microbial adhesion in order to improve its surface, the surface needs to be modified, is the basalt fiber class carriers widely the problems to be solved.

Application of basalt fiber in functional clothing: basalt fiber fabrics with high strength, permanent fire-retardant, short-term temperature 1000 ℃ above, can be used at 760 ° c temperature environment for a long time, is an ideal material to replace asbestos, glass fiber cloth. Basalt fiber fracture of high strength, resistant to high temperature, with permanent flame retardant. Is the Nomex ( aramid 1313), Kevlar ( aramid 1414), Zylon (PBO fibre), high-performance fibers such as carbon fiber and advanced fiber low-priced alternatives. Basalt fiber chemical dyeing and finishing to dyeing and printing cloth. Functional finishing, such as organic fluoride can be made into oil-water-permanent flame retardant fabric. Basalt fiber fabric-made clothing are: fire fighter fire protective clothing, insulated clothing, avoiding fire suit, before the fire protective clothing, welding workwear, crew clothing of military armored vehicles.


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