Calcium sulfate whiskers as reinforcing and toughening agents for friction materials
Enhancing Frictional PerformanceCalcium Sulfate Whisker (CSW) serves as functional fillers to enhance the frictional performances of automotive brake friction materials. The inclusion of crystal whiskers increases the friction coefficient proportionally with the amount of CSW added. Moreover, adding CSW enhances the wear resistance of the friction material while maintaining good abrasion resistance even at high temperatures.Reinforcing Fibers for Improved PerformanceAttributed to the microfibers of CSW, when used as reinforcing fibers in the friction material, CSW can increase the shear strength, thereby enhancing the frictional performance. Additionally, CSW will not wear the counter disc as its Mohs hardness is only 3.Minimal Pollution, Maximum PerformanceThe inclusion of CSW won’t result in black ash or other forms of pollution. Moreover, the addition of calcium sulfate whisker can improve tenacity, reduce noise, increase modulus, and filling power. Unlike other filler materials such as steel fiber, ceramic fiber, and other mineral fibers, which can cause noise due to their high hardness and sediment, the use of CSW will not cause any ash pollution or noise. Compared with ordinary mineral fibers, calcium sulfate whisker can stabilize the quality of the products and eliminate uncontrollable impurities.High-Quality Replacement for Whisker ProductsCSW serves as a high-quality replacement for other whisker products. The Biocaro Whisker can partly or completely replace other whisker products. For instance, Potassium titanate whisker can be partly replaced, while Calcium carbonate whisker can be completely replaced. Aramid fiber used in some products can also be replaced in small amounts to reduce the cost of braking pads.Contrast with Powder PaddingThe proportion of powder padding should be low. The addition of powder padding can lead to a decrease in strength and embrittlement in finished products, while the addition of calcium sulfate whisker can complement the strength due to its microfiber nature.
| Company Name | Zhengzhou Bokaili Ecological Engineering Co., Ltd. | Country/Region | China |
| Business Type | Retailer | Company Size | 40 |
| Established | June 26, 2007 | ||
| Address | North Section of Jingcheng Road, Xingyang, Zhengzhou, Henan | ||
| Main Products | Calcium sulfate whisker | ||
Zhengzhou Bokaili Ecological Engineering Co., Ltd. was established in 2007. In active response to national policies, the company spent two years building a new high-tech, environmentally friendly inorganic whisker research and development base in Zhengzhou, Henan Province, completed in 2009. Collaborating with renowned domestic research institutes, the company independently invested in launching its brand—Bokaili Whisker. After several years of dedicated development, "Bokaili Whisker" has been widely applied in industries such as friction, sealing, plastics, papermaking, adhesives, coatings, insulation materials, and rubber, achieving outstanding results. The product has now passed CTI certification and ISO9001:2008 certification. The company operates four R&D rooms and multiple laboratories, ensuring continuous product improvement and excellence. To guarantee quality, all products must pass strict inspections before leaving the factory. Having completed its second-phase expansion, the company now has an annual production capacity of 60,000 tons, fully meeting customer demand. With strong financial backing, highly educated R&D personnel, and efficient sales services, Zhengzhou Bokaili Ecological Engineering Co., Ltd. has established an excellent corporate reputation and earned widespread customer trust and praise. The visionary leadership of the management team, the dedicated efforts of all employees, and strong support from various industries have contributed to remarkable achievements in relevant fields. While expanding domestic operations, the company is also actively developing international business, treating market globalization as a core strategic goal. To this end, we continuously research and explore new application areas and introduce innovative whisker products. We warmly welcome customers worldwide to visit our facility.
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