On the morning of December 9, 2022, COMAC delivered the world’s first C919 large passenger aircraft to China Eastern Airlines.
The Ultra fine fiberglass/microfiberglass sound insulation felt in the sound insulation system of C919 aircraft cabin is a lightweight and flexible material, which is made of special ultra-fine fiber glass wool, usually called “aircraft wool”, and is designed to save space and weight.
Previously, only two US companies produced such “aircraft wool” in the world.
CQZS Advanced Materials Technology Group is the only professional company in the world that can simultaneously manufacture three major air filtration materials: high-performance glass fiber filter materials, low resistance melt blown filter materials and efficient PTFE membranes.
In 2016, CQZS began to develop “aircraft wool” for C919 large aircraft.
“Aircraft wool” is mainly made of quartz sand, albite, borax and other raw materials through flame blowing, negative pressure cotton gathering and other processes.
The diameter of conventional glass fiber is 5-10 μ m, while the average diameter of ultra-fine glass fiber required by “aircraft wool” is 2 μ m.
To this end, CQZS has started five years of scientific and technological research and development, invested about 70 million yuan successively, established a separate production workshop, set up China’s first aviation grade acoustic laboratory recognized by COMAC, and has 13 of the 16 testing capabilities.
In 2020, the first model of “aircraft wool” developed by the company passed the audit of COMAC and became its qualified supplier.
In 2021, the company’s first batch of “aircraft wool” samples will be delivered to COMAC for use on the first C919 large passenger aircraft.
In 2022, the company signed a batch of “aircraft wool” orders with COMAC.
Sound insulation, flame retardant, water repellent and corrosion resistant
The aviation grade sound insulation cotton developed by the company is made of bio harmless superfine glass fiber cotton, which is double-sided compounded with special film materials, cut and shaped according to the size of the aircraft to form a sound insulation package;
The sound insulation package is fixed on the keel of the aircraft cabin to evenly cover the entire cabin, effectively block noise and heat conduction, and keep the cabin quiet and at an appropriate temperature.
This technology of CQZS fills the gap in China and realizes the localization of “aircraft wool”.
This aviation grade sound insulation cotton has stable chemical properties, excellent waterproof, moisture-proof and sound insulation performance, and low thermal conductivity. It is commonly used in high-speed rail, ships, aviation and other fields.
In addition to COMAC, SpaceX’s rocket fairing also uses acoustic & heat insulation materials developed by CQZS.
Inorganic Spraying Glass Wool/Microfiberglass/Ultra fine fiberglass
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It`s simple and convenient to be used, no need for second processing. Officially certified by the EU rohs/reach/EUCEB, this kind of new material is ideal for thermal and sound insulation area. |
The ultra-fine glass fiber cotton with special formula has passed the biocompatibility certification of Fraunhofer Research Institute in Germany, becoming the only enterprise in China to obtain the green and healthy fiber certification of the European Mineral Cotton Product Certification Board (EUCEB).
The controllable construction mechanism of the ultra-fine glass fiber cotton fiber network structure for aviation, and the uniformity of the surface density and thermal conductivity of the prepared insulation material have reached the international advanced level. Developed a complete series of 5 models of sound insulation materials for large aircraft, achieving mass supply, breaking foreign monopolies, and solving the bottleneck problem of the C919 aircraft’s sound insulation system.
At present, it is the only enterprise in China and the third in the world that can mass produce this product by CQZS.
Application
Cinema / KTV / ship / mall / muffler room / stadium / hotel / other buildings…
Vacuum Insulation Panel/VIP Core Material
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Bright market prospects for Vacuum Insulation Panels/VIP core materials
The main application areas of VIP core materials are the refrigeration industry, cold chain transportation, small household appliances and insulation in the construction industry. As one of the leaders in the production of VIP core materials, the company has advantages in scale, technology and cost. |
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The downstream market’s requirements for large-capacity refrigerator and freezer products and the development of domestic cold chain logistics will drive the demand for vacuum insulation panels. Especially with the continuous breakthrough of the new crown vaccine, the application of VIP core materials in vaccine cold chain transportation has gradually become prominent. The policy strengthens the promotion of green and efficient refrigeration products and green buildings. In 2022, China’s market share of green and efficient refrigeration products will increase by 20% (based on 2017), and the proportion of urban green building area in newly built building area will increase to 50%. VIP The core material market is promising.
AGM battery separators, actively promote cooperation with mainstream battery manufacturers
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AGM (Absorptive Glass Mat) battery separators-High Specific Surface Area Battery Separator High purity glass microfiber separators engineered to address the growing demand for AGM VRLAbatteries in automotive, stationary and motive power markets |
The high specific surface area battery separator is a non-toxic, odorless and white product made by ultra-fine glass fiber with a diameter of 0.4 to 3 um, which is a special core material for valve-regulated sealed lead-acid batteries (VRLA batteries).
Benefiting from the increase in the penetration rate of downstream cars and electric bicycles and the acceleration of the construction of mobile base stations, the market demand for AGM partitions has grown rapidly. The company cooperates with domestic mainstream battery manufacturers, and continues to obtain large quantities of product orders; expand AGM battery separators in the European and American markets. In the first half of 2020, the company shipped 3,103.6 tons of AGM battery separators, a year-on-year increase of 144%. The company has technical advantages, self-produced main raw material micro glass fiber cotton and cost advantages of sharing production lines with VIP sheets. Currently, the company plans to add 2 AGM battery separators production lines, with a total of 8 production lines and an annual production capacity of 11,880 tons.
Glass Microfiber Filter Media
| Having a great filtration efficiency for PM2.5 and PM10, glass microfiber filter media Is widely used in the high-end air filtration environment such as industrial clean room. It is also partially applied in civil use. |  |
Depending on the different reequipments of clients, our product can be designed, produced and supplied in compliance with national or international standards such as EN779/ISO16890.
Application field
ASHREA: air conditioning system, gas turbine and air compressor etc.
HEPA: CL-10K/100K clean room, fresh air system. It’s widely used in shopping mall, hospital, housing, livestock sectors. It can also be applied in nuclear power plant exhaust, high-end vacuum cleaner, air purifier and gas mask .
ULPA: primarily used in chip factory and CL-100/10/1 clean room in semiconductor, microelectronics, biopharmaceutical, operating room, special medical treatment environment.
Composite Melt-blown Filtration Material
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.It Is a premier choice for civil air filtration application.
.Excellent mechanical properties, excellent stiffness, tensile strength and tear resistance
.Low air resistance
.International leading electrostatic electret technology, long service time (3-6 months)
.Low cost, high efficiency
.Various application environment
Application:
Air purifier, vacuum cleaner, car air conditioning, mask…