Industry News
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What Is Biaxially Oriented Polypropylene Overwrap Film?
Biaxially oriented polypropylene (BOPP) film is a type of flexible packaging film. Biaxially oriented polypropylene overwrap film is stretched in machine and transverse directions. This results in a molecular chain orientation in both directions. This type of flexible packaging film is created via a tubular production process. A tube-shaped film bubble is inflated and heated to its softening point (this is different from the melting point) and is stretched with machinery. The film stretches between 300% – 400%. Alternatively, the film can also be stretched by a process known as tenter-frame film manufacturing. With this technique, the polymers are extruded onto a cooled cast roll (also known as a base sheet) and drawn along the machine direction. Tenter-frame film manufacturing us... -
The export volume increased significantly from January to February 2023.
According to customs data statistics: from January to February 2023, the domestic PE export volume is 112,400 tons, including 36,400 tons of HDPE, 56,900 tons of LDPE, and 19,100 tons of LLDPE. From January to February, the domestic PE export volume increased by 59,500 tons compared with the same period in 2022, an increase of 112.48%. From the above chart, we can see that the export volume from January to February has increased significantly compared with the same period in 2022. In terms of months, the export volume in January 2023 increased by 16,600 tons compared with the same period last year, and the export volume in February increased by 40,900 tons compared with the same period last year; in terms of varieties, the export volume of LDPE (January-February) was 36,400 tons , a ye... -
The main applications of PVC .
1. PVC profiles PVC Profiles and profiles are the largest areas of PVC consumption in China, accounting for about 25% of the total PVC consumption. They are mainly used to make doors and windows and energy-saving materials, and their application volume is still increasing significantly nationwide. In developed countries, the market share of plastic doors and windows also ranks first, such as 50% in Germany, 56% in France, and 45% in the United States. 2. PVC pipe Among the many PVC products, PVC pipes are the second largest consumption field, accounting for about 20% of its consumption. In China, PVC pipes are developed earlier than PE pipes and PP pipes, with many varieties, excellent performance and wide application range, occupying an important position in the market. 3. PVC film... -
Types of polypropylene .
Polypropylene molecules contain methyl groups, which can be divided into isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene according to the arrangement of methyl groups. When the methyl groups are arranged on the same side of the main chain, it is called isotactic polypropylene; if the methyl groups are randomly distributed on both sides of the main chain, it is called atactic polypropylene; when the methyl groups are arranged alternately on both sides of the main chain, it is called syndiotactic. polypropylene. In the general production of polypropylene resin, the content of isotactic structure (called isotacticity) is about 95%, and the rest is atactic or syndiotactic polypropylene. The polypropylene resin currently produced in China is classified according... -
The use of paste pvc resin.
It is estimated that in 2000, the total consumption of the global PVC paste resin market was about 1.66 million t/a. In China, PVC paste resin mainly has the following applications: Artificial leather industry: the overall market supply and demand balance. However, affected by the development of PU leather, the demand for artificial leather in Wenzhou and other major paste resin consumption places is subject to certain restrictions. The competition between PU leather and artificial leather is fierce. Floor leather industry: Affected by the shrinking demand for floor leather, the demand for paste resin in this industry has been declining year by year in recent years. Glove material industry: the demand is relatively large, mainly imported, which belongs to the processing of supplied mate... -
The use of caustic soda involves many fields.
Caustic soda can be divided into flake soda, granular soda and solid soda according to its form. The use of caustic soda involves many fields, the following is a detailed introduction for you: 1. Refined petroleum. After being washed with sulfuric acid, petroleum products still contain some acidic substances, which must be washed with sodium hydroxide solution and then washed with water to obtain refined products. 2.printing and dyeing Mainly used in indigo dyes and quinone dyes. In the dyeing process of vat dyes, caustic soda solution and sodium hydrosulfite should be used to reduce them to leuco acid, and then oxidized to the original insoluble state with oxidants after dyeing. After the cotton fabric is treated with caustic soda solution, the wax, grease, starch and other substances ... -
Global PVC demand recovery depends on China.
Entering 2023, due to sluggish demand in various regions, the global polyvinyl chloride (PVC) market still faces uncertainties. During most of 2022, PVC prices in Asia and the United States showed a sharp decline and bottomed out before entering 2023. Entering 2023, among various regions, after China adjusted its epidemic prevention and control policies, the market expects to respond; the United States may further raise interest rates in order to combat inflation and curb domestic PVC demand in the United States. Asia, led by China, and the United States have expanded PVC exports amid weak global demand. As for Europe, the region will still face the problem of high energy prices and inflation recession, and there will probably not be a sustainable recovery in industry profit margins. ... -
What is the impact of a strong earthquake in Turkey on polyethylene?
Turkey is a country straddling Asia and Europe. It is rich in mineral resources, gold, coal and other resources, but lacks oil and natural gas resources. At 18:24 on February 6, Beijing time (13:24 on February 6, local time), a magnitude 7.8 earthquake occurred in Turkey, with a focal depth of 20 kilometers and an epicenter at 38.00 degrees north latitude and 37.15 degrees east longitude. The epicenter was located in southern Turkey, close to the border of Syria. The main ports in the epicenter and the surrounding area were Ceyhan (Ceyhan), Isdemir (Isdemir), and Yumurtalik (Yumurtalik). Turkey and China have a long-standing plastic trade relationship. my country’s import of Turkish polyethylene is relatively small and is decreasing year by year, but the export volume is gradually... -
Analysis of China’s caustic soda export market in 2022.
In 2022, my country’s liquid caustic soda export market as a whole will show a fluctuating trend, and the export offer will reach a high level in May, about 750 US dollars/ton, and the annual average monthly export volume will be 210,000 tons. The substantial increase in the export volume of liquid caustic soda is mainly due to the increase in downstream demand in countries such as Australia and Indonesia, especially the commissioning of the downstream alumina project in Indonesia has increased the procurement demand for caustic soda; in addition, affected by international energy prices, local chlor-alkali plants in Europe have started construction Insufficient, the supply of liquid caustic soda is reduced, thus increasing the import of caustic soda will also form a positive suppo... -
China’s titanium dioxide production reached 3.861 million tons in 2022 .
On January 6, according to the statistics of the Secretariat of the Titanium Dioxide Industry Technology Innovation Strategic Alliance and the Titanium Dioxide Sub-center of the National Chemical Productivity Promotion Center, in 2022, the production of titanium dioxide by 41 full-process enterprises in my country’s titanium dioxide industry will achieve another success, and the industry-wide production The total output of rutile and anatase titanium dioxide and other related products reached 3.861 million tons, an increase of 71,000 tons or 1.87% year-on-year. Bi Sheng, secretary-general of the Titanium Dioxide Alliance and director of the Titanium Dioxide Sub-center, said that according to statistics, in 2022, there will be a total of 41 full-process titanium dioxide production ... -
Sinopec made a breakthrough in the development of metallocene polypropylene catalyst ！
Recently, the metallocene polypropylene catalyst independently developed by the Beijing Research Institute of Chemical Industry successfully completed the first industrial application test in the ring pipe polypropylene process unit of Zhongyuan Petrochemical, and produced homopolymerized and random copolymerized metallocene polypropylene resins with excellent performance. China Sinopec became the first company in China to successfully independently develop metallocene polypropylene technology. Metallocene polypropylene has the advantages of low soluble content, high transparency and high gloss, and is an important direction for the transformation and upgrading of the polypropylene industry and high-end development. Beihua Institute started the research and development of metallocene po... -
Caustic Soda (Sodium Hydroxide) – what is it used for ??
HD Chemicals Caustic Soda – what is its use at home, garden , DIY? The best known use is draining pipes. But caustic soda is also used in several other household situations, not only emergency ones. Caustic soda, is the popular name for sodium hydroxide. HD Chemicals Caustic Soda has a strong irritating effect on the skin, eyes and mucous membranes. Therefore, when using this chemical, you should take precautions – protect your hands with gloves, cover your eyes, mouth and nose. In the event of contact with the substance, rinse the area with plenty of cold water and consult a doctor (remember that caustic soda causes chemical burns and severe allergic reactions). It is also important to store the agent properly – in a tightly closed container (soda reacts strongly with...