Shanghai Petrochemical Plastics Department continued the rapid development of new product development last year. From January to April, among the 310,000 tons of polyolefin products produced, high value-added products reached 274,000 tons, accounting for more than 80% of the total output, and achieved good economic benefits. According to reports, the Ministry of high value-added products will reach 800,000 tons this year, accounting for more than 87% of the total output.
Why is the proportion of special materials and new products so high? The plastics department leaders believe that the domestic polyolefin production capacity grows rapidly, the ordinary products are fiercely competitive, and the profitability is weak. The product structure must be adjusted to the development of special materials and new products.
Last year, three sets of polypropylene units and three sets of polyethylene units in the Shanghai Petrochemical Plastics Department operated at full capacity. Of the 935,000 tons of polyolefin products produced, more than 800,000 tons of high-tech, high-value-added special materials and new products were used. The Ministry of Plastics, which does not rely on production scale or leading equipment performance, won the first place in the 2010 annual profit, gross profit, and net profit of similar types of equipment produced by Sinopec.
Due to the high starting point for development, the special materials and new products of this department are often among the first of its kind in the world. They are highly favored by users and have won wide market and good results. The PE100-grade bimodal polyethylene pipe special material developed by the Ministry last year became the first domestic manufacturing material to be used in confined gas pipelines, filling the gap in domestic special materials. The Mutton Copolymer Copolymer M850B jointly developed with the Beijing Research Institute of Chemical Industry has high transparency and low precipitation characteristics, which breaks the high standard of raw materials for the food industry and is promoted by the domestic food industry. Replacement.
Fluorocrystalline mica, also known as fluorphlogopite mica, synthetic mica, artificial mica, synthetic mica crystal, belongs to the silicate type artificial mica crystal, is under the high temperature condition of 1500°C, through strict process conditions and material ratio, in platinum The mica crystals smelted in the yttrium have a chemical formula of KMg3(AISi3O10)F2(OH)-, and do not contain (OH)-. The (OH)-hydroxyl group is replaced by F-(fluoro), which is similar to the fluorite mica. Materials commonly used in the general industry are natural mica. Natural mica is an underground ore naturally formed and belongs to the class of silicates. Most of the industrial mica used is phlogopite (brown) and muscovite. Its ideal chemical formula is KAI2(AISi3O10)(OH)2. OH)-(Hydroxy), due to the presence of hydroxyl (water molecules), its performance in all aspects is far lower than that of fluorocrystalline mica.
The main characteristics of fluoride crystal mica:
1, high temperature: can work long-term in the 1100 °C environment.
The testing department of the Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (nationally recognized testing institute) tested the thermal weight loss of 8% at 1100°C for 48 hours, and the melting and devitrification temperature was 1375°C.
2. Electrical insulation: The volume resistivity is 10 times higher than natural mica. Electrical breakdown strength is PTFE
Lean 10 times.
3, hot and cold blasting stability is very good
5 cycles of -40°C~70°C at the 5th Saibao Lab of the Ministry of Information Industry
Inspection, all qualified.
4, anti-corrosion:
Fluorophlogopite does not react with acid and alkali solutions, and does not react with water. Under the long-term (2 to 3 years) scouring of high-temperature and high-pressure water (including acid and alkali), the original clarity and transparency can still be maintained.
5, high frequency performance:
The dielectric constant of fluorite mica is 4.6 ε, and the dielectric loss is (1~4)×10 −4 tg δ, and the dielectric loss is very low. And because of the pure texture, all parameters are extremely stable.
6, optical properties
Since the fluorite mica contains less impurities, its light transmittance is compared from infrared to ultraviolet.
High, the transmittance is close to 100%.
7, Mosaic (Mosaicity):
The Mosaicite of fluorocrystalline mica is less than 0.25 degrees, which was produced in the experiment.
The neutron flame is not high enough to absorb multi-band light beams and is an ideal neutron monochromator test material.
8, vacuum deflation performance:
The evaporative volume of fluorite mica is low, and it is measured with a mass spectrometer and the trace gas released is only
O2, N2, Ar and other adsorbed gases. Since the H2O vapor is not released, this is extremely valuable for use as an electrical vacuum insulation material, which can greatly increase the service life of the vacuum device.
9, excellent physical properties:
Fluorocrystalline mica has atomicity flatness, transparency, separability and elasticity, not aging
It is not brittle and so on.
Due to the high temperature resistance, corrosion resistance, low frequency loss, and high bulk resistivity
Absorb multi-band light beam, excellent light transmittance and other advantages. Therefore it has become an ideal new material in the high-end area.
Fluorocrystalline mica Available in:
In the range of 180mm×53mm or ∮76mm, it can be processed into various shapes according to user requirements. Thickness within the range of 0.02mm~1.0mm can be allocated according to user requirements. The conventional thickness is 0.04~0.2mm.
Fluorine crystal (fluorphlogopite, artificial mica) mica film for observation window of high pressure boiler water level gauge in thermal power plant
Fluorophlogopite Mica,Fluorophlogopite Sheet,Synthetic Fluorophlogopite Mica,Fluorophlogopite Mica Fragments
Changchun City Taiyuan FluorphlogopiteCo. Ltd. , https://www.micaslice.com