High performance basalt fiber reinforced resin matrix composites

　　It is made of high-strength and high-performance basalt fiber woven cloth, unidirectional cloth and high-performance resin through molding, autoclave compounding and other processes. It has low bulk density, low thermal conductivity, low moisture absorption and chemical stability to corrosive media, and can effectively reduce the structural quality. It is used for automobile body structural materials, automobile engine cover, trunk cover, automobile cabin, etc. 　　Product features 　　Lightweight, 40% ~ 50% lighter than ordinary steel structures; 　　Green environmental protection, compared with glass fiber, it is easy to recycle; 　　Effectively fill the gap between the mechanical properties of glass fiber and carbon fiber, with high cost performance; 　　It has high temperature resistance, damp heat resistance and corrosion resistance. 　　Product performance 　　Tensile strength: ≥ 1800mpa 　　Elastic modulus: ≥ 50gpa 　　Elongation at break: ≥ 2.5% 　　Gram weight: (120 ~ 500) g / m2 　　Flame retardancy: class V-0

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Basalt Fiber Cloth Series

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Parameters

　　It is made of high-strength and high-performance basalt fiber woven cloth, unidirectional cloth and high-performance resin through molding, autoclave compounding and other processes. It has low bulk density, low thermal conductivity, low moisture absorption and chemical stability to corrosive media, and can effectively reduce the structural quality. It is used for automobile body structural materials, automobile engine cover, trunk cover, automobile cabin, etc.

　　Product features

　　Lightweight, 40% ~ 50% lighter than ordinary steel structures;

　　Green environmental protection, compared with glass fiber, it is easy to recycle;

　　Effectively fill the gap between the mechanical properties of glass fiber and carbon fiber, with high cost performance;

　　It has high temperature resistance, damp heat resistance and corrosion resistance.

　　Product performance

　　Tensile strength: ≥ 1800mpa

　　Elastic modulus: ≥ 50gpa

　　Elongation at break: ≥ 2.5%

　　Gram weight: (120 ~ 500) g / m2

　　Flame retardancy: class V-0

Basalt fiber characteristics

Serial number	Product features	performance index
1	Outstanding mechanical properties	The density is 2.65 ~ 3.00g/cm3 and the tensile strength is 3300 ~ 4840mpa; The tensile strength, elastic modulus and elongation at break are higher than those of glass fiber, which has excellent wear resistance.
2	Excellent temperature resistance	The service temperature range of basalt fiber is: - 269 ℃ ~ 700 ℃; When working at 400 ℃ and 600 ℃, the fracture strength retention rate is ≥ 85% and ≥ 80% respectively; After 780 ~ 820 ℃ pretreatment, it can work at 860 ℃ without shrinkage.
3	Good chemical stability, acid and alkali corrosion resistance	K2O, MgO and TiO2 in the fiber significantly improve the chemical corrosion resistance and waterproof performance. The acidity coefficient of fiber is 4.86, pH=0.34； At 2mol / L After boiling in NaOH solution for 3 hours, the mass loss fraction was 0.0275%.
4	Good thermal shock resistance and stability	It can be used in 500 ℃ thermal vibration environment for a long time, and the mass loss is less than 0.02%, At 900 ℃, the mass loss is only 0.03%.
5	Wave absorption and magnetic permeability	It has excellent microwave absorption performance, and the microwave absorption performance can be further improved after surface modification of magnetic materials.
6	Excellent dielectric properties	The dielectric loss tangent of basalt fiber with volume resistivity greater than 1012 Ω· m and treated with special wetting agent is 50% lower than that of glass fiber, which can be used to manufacture new heat-resistant dielectric materials.
7	Sound absorption and heat insulation	It has excellent sound absorption and sound insulation performance, and its low frequency absorption coefficient and peak absorption coefficient are all higher than traditional sound absorbing foam, preoxygenation wire and so on. The thermal conductivity is more than 20% lower than that of glass fiber, which is much lower than that of rock wool and other thermal insulation materials.

　　Chongqing zhidu New Material Technology Co., Ltd. took the lead in mass production of ultra-fine basalt fiber (≤ 5um) in China. A series of high-strength and high modulus basalt fibers have been developed. The single fiber strength has exceeded 5800mpa and the fiber modulus has exceeded 100GPa. Compared with conventional basalt fibers, the properties have been greatly improved and have a wide application prospect.

Mechanical properties of high strength and high modulus basalt fiber

Fiber model	fiber diameter，um	Fiber monofilament strength，MPa	Fiber modulus，MPa
5-23	5	5730±80	104300±1500
7-46	7	5120±100	95100±1500
9-76	9	4800±80	91600±1400