CCTV Heavy Documentary "Pillar Material" | Two High-end Materials of Chinese Building Materials, Creating "Creation Legend"

CCTV's six-episode large-scale documentary "The Material of the Pillar" is being broadcasted

. The eight materials

of China Building Material Group have been successfully selected as the samples

that best represent the level of China's material science and technology. The following small materials will take you to reveal

the third episode of "The Legend of Creation". One of the two high-end materials

is

high-performance carbon

fiber, which is known as "black gold" and "king of materials". It is as thin as a hair, as light as a feather and as strong as steel. Its figure is not only close to our daily life, such as bicycles, tennis rackets and other sports equipment, but also appears in high-end areas such as aerospace.

We have successfully solved the problem of "sticking neck" in the industrial production of carbon fibers by sharpening a sword for ten years. The self-developed dry-jet wet spinning technology has won the first prize of the National Science and Technology Progress Award. We have successively conquered the T700, T800 kiloton technology and T1000, M40 hundred-ton technology. China has become one of the three countries in the world that have mastered high-performance carbon fiber technology. The 25,000-ton high-performance carbon fiber project, located in Xining, Qinghai Province, has drawn a magnificent picture of "the world's largest single carbon fiber base" and created an amazing plateau "super project". The project has been put into full operation, contributing to the construction of China's manufacturing power.

Appearance 2:

Lithium battery diaphragm

Lithium battery diaphragm, known as the heart valve of lithium batteries, is also the last key material for localization. After years of technical research, we can produce 3-12 μm wet bidirectional synchronous and asynchronous base membranes and various coated diaphragms, which are widely used in new energy automotive power batteries, 3C consumer batteries, energy storage batteries and other fields. The coated diaphragm produced

by new formula and advanced technology has uniform coating distribution and excellent and stable performance. Nowadays, we are still challenging the thickness and safety limit of lithium battery diaphragm, making the diaphragm thinner and thinner, and the performance more and more excellent.