High speed digital circuit PCB and RF microwave circuit PCB rely heavily on imports, such as rosjie in the United States and Panasonic in Japan, which have become a technical problem in China's communication electronics industry. Now, high-frequency PCB with independent intellectual property rights is being developed by using the extremely low dielectric constant and dielectric loss characteristics of ultra-fine CBF. 　　Product features 　　It has excellent properties such as high strength, high modulus and insulation; 　　The surface resistivity and volume resistivity are one order of magnitude higher than E glass fiber; 　　High temperature resistance, corrosion resistance and service life are much longer than E glass fiber products. 　　Product performance 　　Tensile strength: ≥ 400MPa; 　　Bending strength: ≥ 550MPa; 　　Dielectric loss Tan δ： ≤0.0011； 　　Dielectric constant: 10GHz ≤ 2.95; 　　Water absorption: ≤ 7Mg.

　　Basalt fiber needle felt is used as reinforcing material. It is prepared by sol-gel process combined with supercritical drying technology, and has very low thermal conductivity. It can be applied to thermal protection of power battery of new energy vehicles. 　　Product features 　　Good thermal insulation effect and small space occupation: the thermal conductivity is 1 / 2 ~ 1 / 3 of that of traditional thermal insulation materials such as ultra-fine glass wool and calcium silicate. With the same thermal insulation effect, the space occupation is reduced by more than 50% compared with that of traditional thermal insulation materials such as ultra-fine glass wool, rock wool and calcium silicate. 　　Flame retardant, vibration resistance, salt spray resistance, damp heat and mold resistance: the flame retardant performance reaches grade A1 in GB8624; Passed the test of vibration and trampling resistance; The product has no change after damp heat and salt spray test, and the mildew growth degree of mold test is grade 0. 　　Product performance 　　Thickness: (1 ~ 6) mm; 　　Bulk density: (100 ~ 400) kg / m3; 　　Thermal conductivity: ≤ 0.02w / (m · K); 　　Flame retardant: class V-0; 　　Maximum service temperature: ≥ 600 ℃; 　　Hydrophobic rate: ≥ 99%; 　　Moisture content: ≤ 1%.

It is made of basalt chopped fiber through needling process. It has excellent characteristics of high temperature resistance, heat insulation, sound absorption, flame retardant and filtration. It can be used in automobile muffler, filter dust collector, etc. Product features High temperature resistance, can work stably in the high temperature environment of no more than 650 ℃. Good heat insulation and sound absorption performance. 　　It can filter dust. 　　Green environmental protection, no harmful substances to human body, natural degradation and long service life. 　　Product performance 　　Bulk density: (50 ~ 200) kg / m3 　　Thermal conductivity: ≤ 0.026w / (m · K) 　　Thickness: (2 ~ 30) mm 　　Flame retardancy: class V-0 　　Average sound absorption coefficient: ≥ 0.75 　　Peak sound absorption coefficient: ≥ 0.92

Basalt fiber surface felt is a non-woven basalt fiber felt made of chopped basalt fiber, which is dredged and decomposed by wet forming process. It

Basalt sound-absorbing and heat-insulating cotton is a kind of finished cotton with sound-absorbing and heat-insulating effects, which is formed by mixing basalt fiber and low melting point fiber through loosening, carding, mesh laying, high-temperature box, and finally through acupuncture or hot air process.

Superfine basalt fiber composite insulation pad is an ultra-thin new nanostructure composite material, composed of 5 μ The products made of ultra-fine basalt fiber felt below m and silica aerogel are coated with PET film on the outside surface.

Basalt fiber needled felt is a disordered and staggered single fiber, forming an undirected three-dimensional microporous structure. It is made of fine basalt fiber, with large specific surface area, porosity of more than 80% and no boron.