Meltblown cloth, the core material of protective masks, is known as the "heart" of masks. It has good filterability, shielding, heat insulation and oil absorption, and is an important raw material for the production of KN95 (N95) masks. Its diameter is only one tenth of the diameter of the outer layer of the mask, which can effectively capture dust. When the droplets containing the virus are clos
Meltblown cloth is the core material of the mask. Meltblown cloth mainly uses polypropylene as the main raw material, and the fiber diameter can reach 1 to 5 microns. There are many voids, fluffy structure and good resistance to folds. The ultrafine fibers with unique capillary structure increase the number and surface area of fibers per unit area, so that the melt-blown cloth has good filtration,
PPR pipe is a new type of pipe. Compared with traditional pipe, it has outstanding advantages, simple production and economical price. It has a wide range of uses in our daily life. However, when it comes to ppr pipe, many people may not understand it. Today , I will bring you to know this kind of pipe, for you to introduce in detail what is ppr pipe and ppr pipe production process. What
PPR tube installation method and skills Tools / raw materials High quality PPR tube Hot melt machine small scissors Pipe fittings (or valves) Hand towel Method / Step 1 Prepare the necessary materials: hot melt machine, small scissors, ppr tube, pipe fittings, hand towel. Hot melt machine: The machine can borrow one at the store where the ppr tube is sold, and there is no n
PPR pipe extruder production process analysis of incurable diseases There are many equipments for PPR pipe extruders on the market, but how many people can really operate the machine skillfully, it is necessary to master the performance of the machine and the characteristics of the raw materials to produce qualified products. How to solve the incurable diseases in the production process of PP
Quality defects of PPR pipe extrusion and the solutions PP-R (Poly Propylene Random) pipe, that is, random copolymer polypropylene pipe, is a new type of water pipe material commonly used in developed countries today. PP-R pipeline has been used in Europe for more than 10 years. Due to its excellent performance, its market share has been far ahead of other plastic water pipe materials in recent y
The longer the use of PPR water pipes, the greater the "poisonousness". In fact, many people do not know that they have already taken the trick! Now many people like to decorate the house according to their own preferences. How can they choose the right pipe within a reasonable budget? Now I will introduce you to the ppr water pipe. PPR's water pipes can affect household water use issues and
PPR pipe is also called three-type polypropylene pipe and random copolymer polypropylene. The random copolymer polypropylene can be extruded into pipe material and can also be injected into pipe fittings. The random copolymer of polypropylene is also a kind of polypropylene. The basic structure of its polymer chain is modified by adding different kinds of monomer molecules. Ethylene is the most
