Polyethylene is a thermoplastic resin obtained by polymerizing ethylene. In industry, copolymers of ethylene and small amounts of alpha-olefins are also included. Polyethylene is o
Aug 11, 2022
The alkyl tin compound is an organotin compound RnSnX4-n, where R is an alkyl group. Count methyl, ethyl, propyl, butyl, octyl. When n is 1-4, there are corresponding compounds of
Electrophile refers to chemical reagents with electrophilicity in chemical reactions, which can be represented by E+. Electrophiles contain empty electron orbitals of lower energy
Aug 09, 2022
Acrylamide is an organic compound. Acrylamide has certain carcinogenicity. Its chemical formula is C3H5NO. It is a white crystalline powder. It is soluble in water, ethanol, ether,
Arc pilot plates are used for welding seams. At the starting point and end point of the welding point, the butt weld is often cut due to the weldment of the butt weld, so the types
Aug 08, 2022
The welded seam uses the high temperature of the welding heat source to melt and connect the welding rod and the metal at the seam. After the weld metal has cooled, the two weldmen
High-speed steel (HSS) is a tool steel with high hardness, high wear resistance and high heat resistance, also known as high-speed tool steel or front steel, commonly known as whit
Aug 05, 2022
Tool steel is the steel used to manufacture cutting tools, measuring tools, dies and wear-resistant tools. Tool steel has high hardness and can maintain high hardness and red hardn
nuclear magneton Since the nucleus carries an electric charge, when the nucleus spins, a magnetic moment is generated by the spin. This magnetic moment is in the same direction as
Aug 04, 2022
The atomic magnetic moment is the effective part of the sum of the various magnetic moments inside the atom. The magnetic moment of the atom is the source of the magnetism of the m
Ferromagnetic substances can be magnetized to saturation as long as they are under the action of a small magnetic field. Not only the magnetic susceptibility is >0, but also the
Aug 03, 2022
The Fokker effect refers to the phenomenon that the polarization plane rotates when the linearly polarized light is incident on the surface of the magnetized medium and reflected o
