XRF spectrometer is applied to the analysis of black talc content of components

Talc diversity, color can be black, white, green, grey, brown or colorless, including black talc except as a result of mixed with organic carbon black in color, its mineral composition, genetic type and chemical composition are similar to white talc. Talc is mainly used in ceramic industry raw materials, rubber packing, plastic packing, revestimiento, Marine polymer lithium ion battery cathode material packing and stealth materials, photocatalytic degradation of materials, with good quality can be used in cosmetics and medicine, etc.Black talc is a kind of silicate minerals, and is generally referred to as the of black talc and grey black talc, its main chemical composition is sio2 (acerca de 69%) and magnesium (acerca de 26%), in addition also contains a small amount of potassium, calcium, hierro, sodium, etc.. The main reason for the black black talc is caused due to internal contains a small amount of organic matter.

Black talc resource is abundant in our country, has proven the black talc mining area are mainly distributed in the central south of China and southwest, a leading producer of jiangxi jinta baojing NaTong GuangFeng, chongqing, hunan, gansu and jiangxi jiujiang, jiangxi yichun, etc.. Of jiangxi GuangFeng black talc ore is so far found the largest reserves of black talc deposits in our country, the proved reserves of 1 billion tons, is the world’s largest black talc mining area.

XRF spectrometer is applied to the analysis of black talc content of components

Black talc application prospect

1 cerámico

Talc has good thermal stability and other physical and chemical properties, widely used in refractory materials, papel, goma, insulation materials, and other fields. Black talc because its color is black, the chemical composition is relatively single, the composition of a small amount of organic matter under the condition of 1100 ℃ high temperature plus 1 hot, organic carbon can be completely removed fuel efficiency. After super fine crushing can get high quality Bai Chao fine talcum powder, white degree of up to 90%. In ceramic production, can improve the thermal stability, mechanical properties of ceramics, and to the insulation, protection of ceramic glaze is not easy to change color and crimp features, therefore widely used in ceramic industry.

2 the papermaking filler

Talc has the character of chemical stability, low hardness, add in papermaking process, can increase the smoothness of paper and tightness. The lubricity can reduce friction on the surface of the paper, to reduce the paper between the adhesion phenomenon, improve the effectiveness in the process of manufacturing. And black talc can be achieved by high temperature calcination process such as white, make its have the same qualities of the talc, and the price is low, also accord with standard of papermaking industry use of talc (JC161-82)

XRF spectrometer is applied to the analysis of black talc content of components

3 polymer filler

Polymer filler used two kinds of black talc, a for calcined talcum powder. Because of the high temperature burn becomes, loss of water of crystallization, layered crystal structure into a chain structure, increase of hardness, can be used in the need to improve the hardness and strength of plastic products. Another is black talc powder, can be directly used in the production of black plastic. According to research shows that black talc powder is added in the production of HDPE (the amount of carbon black is not more than 3%) can improve the impact strength, add black talc powder (the amount of carbon black is not more than 5%) can improve the tensile strength.Because black talc is the intrinsic characteristics of talc, have a certain hydrophobic and dispersion, good compatibility with polymer carbon black is better than simple, therefore has wide application prospects in improving polymer properties.

4 building materials coatings

Due to the hydrophobic talc, low hardness and chemical stability, added with coating can enhance the resistance to wear and corrosion resistance of the coating effect. Talc lamellar structure makes it have good adsorption and rheological property, can improve the coating performance, such as preventing coatings sag and storage of the settlement, etc.. According to the study found that 10% of the talc content is added in the coating can improve the water proofing property of fire retardant coating, adding 20% of talcum powder can enhance coating of heat insulation performance. And add talcum powder coating in use has high brightness and smoothness. In the United States and Western Europe and other developed countries, the paint industry consumes more than 200000 tons of talc. Black talc by calcination to remove organic matter, obtain the talcum powder can be used in the coatings.

XRF spectrometer is applied to the analysis of black talc content of components

We developed by floor EDX8800 high-performance X-ray fluorescence spectrometer is a specifically for talc composition analysis and the appraisal and the development of the instrument, test of high precision, buena estabilidad, alta sensibilidad. We adopt the way of powder tablet to do the sample beforeProcessing, compared with traditional chemical testing methods, spectrometer test speed, fast sample preparation, La operación es simple. The test accuracy and chemical results also made a very good match. The following is black talc spectrometer test report