English
The high-efficiency erlenmeyer shake flask is a special-shaped cell culture flask, which plays an important role in the suspension culture of mammalian cells and insect cells. In terms of material selection, this consumable is made of polycarbonate (PC) with high transparency, strong impact resistance, and high temperature resistance of 121°C.
PC is a high molecular weight polymer containing carbonate groups in the molecular chain. It is colorless and transparent. Due to its structural particularity, it has become a general engineering plastic with a faster growth rate among the five major engineering plastics. When the PC material is synthesized, BPA is added, but in order to prevent BPA from affecting cell growth, the high-efficiency erlenmeyer shake flask uses BPA-free PC to ensure a good growth environment for cells.
In addition, the PC material has good mechanical properties, stable dimensions, and small creep, even under high temperature conditions. The enhanced UL temperature index reaches 120~140℃ (long-term outdoor aging is also very good), the dielectric coefficient is 3.0-3.2, and the arc resistance is 120s. It is an ideal material for manufacturing electronic and electrical parts. However, this material is easy to decompose when exposed to water at high temperature, so caution should be used if it is used in a high temperature and high humidity environment. PC material also has good processing properties and can be formed by injection molding or extrusion molding using ordinary equipment.
PC material is a commonly used processing material for high-efficiency erlenmeyer shake flasks. In addition, PETG material can also be used as a processing raw material for high-efficiency shake flasks. Customers can choose according to different needs.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.