The seller is currently Offline

Page Views: 431 Date Added: 11/15/2009 Last Updated: 11/15/2009 Expiry Date: 11/10/2028 Product/Service Details We are the top producer of wollastonite in China, the storeage of our mine exceeds 10 millions metric ton, with advanced processing machine and high technology, we are confident that our product can meet your every special useage purpose. Wollastonite is a naturally occurring mineral with many unique characteristics. Through advanced processing, it has become one of the most versatile functional fillers in the marketplace. Wollastonite increases the performance of many products including plastics, paints and coatings, construction materials, friction, ceramic and metallurgical applications to name a few. Wollastonite is an industrial mineral comprised chemically of calcium, silicon and oxygen. Its molecular formula is CaSiO3 and its theoretical composition consists of 48.28% CaO and 51.72% SiO2. Natural wollastonite may contain trace or minor amounts of various metal ions such as aluminum, iron, magnesium, potassium and sodium. Wollastonite is rarely found by itself and generally contains other minerals like calcite, garnet and diopside that are removed during processing. Optimum performance is created by properly matching the correct coupling agent at the right concentration level to the polymer system. Overall, the benefits of a surface modified wollastonite are improved physical properties, improved processing along with improved dispersion of the resin. Plastics: In plastics, wollastonite improves the durability of the composite due to its acicular or needle-like structure. It also enhances electrical insulating properties, adds fire resistance, and improves dimensional stability. Finer particle size grades provide improved scratch and impact resistance compared to other materials. The application of surface treatments like silanes on the wollastonite substrate changes the mineral from a utilitarian filler to a functional component of a polymer composite. This in turn adds performance values which the base resin alone does not possess. Optimum performance is created by properly matching the correct coupling agent at the right concentration level to the polymer system. Overall, the benefits of a surface modified wollastonite are improved physical properties, improved processing along with improved dispersion of the resin. Construction: Wollastonite has found application as a substitute for asbestos in fire-resistant building products used in the construction industry. As a functional additive, wollastonite improves flexural and impact strengths. Its low thermal conductivity and high aspect ratio structure also makes wollastonite an attractive addition for applications requiring fire resistance. Wollastonite finds application in interior and exterior construction boards, roof tiles, shaped insulation products, sheets, panels and sidings. Ceramics: Wollastonite can be used in a variety of ceramic applications including ceramic glazes and bodies, enamels, frits, fluxes and in sanitaryware. This industrial mineral is a source of CaO to alkaline glaze formulations to improve the strength of the glaze. Wollastonite also has a low LOI ( 1%) which gives minimal gas evolution during firing resulting in a smooth surface with diminished pinholing. Due to its acicular structure, wollastonite improves green strength and reduces crazing and checking especially during rapid heating and cooling. It has a low sintering temperature (approximately 991-1196C) which is comparable to that of most natural frits. TESTED REPORT SiO2: 45-56%, Al2O3: 0.32%, Fe2O3: 0.25%, MGO: 0.81%, CAO: 45.22%, S: 0.007, P: 0.0018, IL: 1.3 SIZE: 325-800mesh ≥90 Additional photos wollastonite powder(200 mesh) wollastonite(lump 0-200mm) wollostonite powder(325 mesh)

Company Information (Beihai Tengda Trading Co., Ltd. )

Company Profile: Tengda is engaged in scientific research, development, manufacture and commercial operation with many years, we have been dedicating to the development of the new types of minerals with high quality, wide application and low Fe and a serious of hi-tech fine mineral products. The innovation is a driving force of Tengda. Among our products, many a are among the top rank on the production scale, quality and technical in China. Processing technique has been carried out successfully in our company, the technical development and self-innovation capability of our company has been among the top rank in the National Technology Campaign. Marketing is the core task of the development of Tengda. On the basis of excellent quality and services as well as strong marketing network., our products are well sold over China and exported to Asia. Europe. America. Australia, Africa and other world and established a long term friendly business relationship with over 100 courtiers. We dedicate to enhance the fundamental management and team construction and make our efforts to build the condition and atmosphere for those outstanding personnel who have capability & moral trait to realize their vale and share the value. Our prospect is to be the most leading enterprise in the mineral field. Our duty is to promote environment while using the limited resource and dedicate to the mineral service.. >> More Website URL: http://www.bridgat.com/u9557