Epoxy resin has excellent heat resistance, electrical insulation, adhesion, dielectric property, mechanical property, small shrinkage, chemical resistance, and good processability and operability after adding curing agent. Therefore, at present, foreign semiconductor devices are mostly encapsulated with epoxy resin.
In 2022, PVC industry adjusted at the beginning and end of the year, with a sharp drop in the middle of the year.
Since the 1970s, with the price rise of traditional energy and the impact of global climate change, Worldwide countries gradually realize the importance of biofuels. It is estimated that the carbon dioxide emission of biofuels is 50% of that of fossil fuels. It is estimated that the carbon dioxide emission of biofuels is 50% of that of fossil fuels. biofuels will be one of the key growth engines of the company's energy transformation.
There are about a dozen kinds of medical plastic materials that commonly used in medical field, Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyurethane (PU), polytetrafluoroethylene (PTFE), polycarbonate (PC)
Resin chemicals are widely used in potting and packaging in the electronic and electrical industries, but the right choice can not be made at the beginning. Since there are so many resins to choose from
PVC resin is the second largest raw material in the world, and there are many kinds of PVC resin on the market. Today, let's introduce the SG series. SG represents the PVC resin produced by suspension method, which is generally divided into 1~8 types
The density of pure titanium at room temperature (25 ℃) is 4.505g/cm3. melting point of titanium is (1668 ± 5) ℃. boiling point of titanium is (3260 ± 20) ℃. the specific heat capacity of titanium at 20 ℃ is 500J/(kg · K).
There are many production processes of PVC. According to the different monomer vinyl chloride, the production processes are mainly divided into calcium carbide method and ethylene method.PVC by calcium carbide method is a coal chemical route.
Differences in PVC production technology. There are two production processes of PVC, one is chlorination process, the other is acetylene process.
According to Vietnam's 《Business report》, in the first 11 months of 2022, the exportation of Vietnam rubber is around 1.86 million tons, value 2.93 billion US dollars, increased 9.1% and 3% year on year respectively.
Polypropylene (PP), as one of the five general plastics in China, is widely used. Plastic woven bags, films on the outside of packaging materials, masks, non-woven protective clothing, wave buckets inside washing machines
The capacity utilization rate of PVC manufacturers increased by 0.88% month on month to 71.16%, a year-on-year decrease of 4.32%; Among them, calcium carbide PVC increased by 0.67% month on month to 68.59%
IEA d on the consumption data, predict that the demand for oil will increase globally this and next year. OPEC said that the growth of global oil demand is expected to remain unchanged, with a daily increase of 2.5 million barrels this year
Polyvinyl chloride, short for PVC, It is the second largest industrial raw material in the world. There are a various of brands and types of PVC in China nationwide. Qilu, a large manufacturer in China, it’s types of PVC mainly include S-700, S-1000.
According to the PVC industry, there is no big difference between the application fields of ethylene PVC and calcium carbide PVC, but the production process is different. There are following facts that can effect the calcium carbide PVC and ethylene PVC.