Coating knowledge: two basic structures and properties of polymers

It is suggested that the molecular structure of polymer can be divided into two basic types: the first is linear structure, which is called linear polymer The second is the body structure, which is called body polymer In addition, some polymers have branched chains, called branched polymers, which also belong to the category of linear structure Although some polymers have cross-linking between molecular chains, they have less cross-linking This kind of structure is called network structure, which belongs to the category of body structure There are independent macromolecules in the polymer with on-line structure (including those with branched chains), which are either in the solvent or in the additive Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Paint Home News: polymer molecular structure can be divided into two basic types: the first is linear structure, which is called linear polymer The second is the body structure, which is called body polymer In addition, some polymers have branched chains, called branched polymers, which also belong to the category of linear structure Although some polymers have cross-linking between molecular chains, they have less cross-linking This kind of structure is called network structure, which belongs to the category of body structure There are independent macromolecules in the polymer with on-line structure (including branched chain) Macromolecules can be separated from each other in the solvent or in the state of heating and melting However, there are no independent macromolecules in the shape structure (a large number of cross-linking between molecular chains), so there is no significance of relative molecular weight, only the significance of the degree of cross-linking Macromolecules with little cross-linking network structure may also be separated (just as a "fish net" can still be separated) It should be pointed out that the above two basic structures are actually intuitive simulation of the molecular model of polymers, while the real fine structure of molecules is generally not clear except for a few (such as oriented polymers) Two different structures show opposite performance Linear structure (including branched chain structure) polymers have the characteristics of elasticity, plasticity, solubility in solvent, melting by heating, and less hardness and brittleness due to the existence of independent molecules Because there is no independent macromolecule in the shape structure polymer, it has no elasticity and plasticity, can't dissolve and melt, can only swell, and has high hardness and brittleness Therefore, from the structure point of view, rubber can only be linear structure or network structure polymer with little cross-linking, fiber can only be linear polymer, while plastic has both structures Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,