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The density of the plastic
by：CSSSLD
2021-02-03
Relative density is defined as the prescribed temperature, with a certain volume of material quality and temperature under the same volume ratio of the reference material quality.
To reduce the density of plastic foam modified, add light three kinds of fillers and blending light resin.
To reduce the density of injection molding processing refers to through the proper way to make plastic original relative density decreased, so as to adapt to the needs of different applications.
foam reduce the density of plastic, plastic foam molding is the most effective way to reduce the density. And add light to add material and blending light resin two modification methods, only small lower density, its decline, generally only about 50%, the lowest relative density can reach 0. Five or so. The density of the foam products range is very wide.
as a foam products, without substantial loss on the basis of the original mechanical properties, as far as possible to reduce the density, commonly so often choose medium, low foaming products. In lower density at the same time, in order to guarantee a certain temperature, often choose foam structure. The surface and central layers of foam plastic foaming degree, the surface is only a small amount of foam foam or not, while inside a lot of foam. Structure of foam plastic has advantages of strength and light weight. Because foam is commonly used to reduce the density of the plastic, low foaming, so the requirement is not high, foaming agent commonly used chemical foaming agent, sometimes choose physical foaming agent. Considering the strength problem of products, foaming agent addition amount is compared commonly small. Increase the density of plastic is said the original resin, a method of the relative density increases, mainly for the added to mass packing and blending heavy resin.
the brightness improvement the luster of the plastic and plastic mechanical parts, specific measures, which has two kinds of gloss and smooth finish. Gloss measurements to mirror for reference, under the rules of incidence Angle, the mirror reflectivity and the same condition of sample datum of the ratio of reflectivity, glossiness used commonly expressed as percentage, also can omit percent, with gloss unit said. Plastic products the higher gloss, illustrates its surface is shining, but plastic products low gloss than mirror, need high gloss, must the plating and secondary brightening treatment such as polishing.
roughness is defined as: a measure of the state of an object's surface, surface smoothness and flatness. Roughness is commonly used now in place of the concept of gloss, roughness is defined as a representation of surface smoothness and flatness. Surface finish is divided into 14 different level, the higher the level of surface finish, the higher the surface glossiness.
improve gloss plastic method consists of two aspects of meaning, on the one hand is to improve the plastic parts surface gloss, called light modification, on the other hand is reduce the surface gloss of plastic injection molding products processing, known as extinction.
more wonderful sharing: classic plastic powder coating modification, click directly.
or copy the link: http://www. csssld。 cn//html/2016/Info_0505/222。 HTML
nantong on plastic products factory's official website: http://www. csssld。 cn//
foam reduce the density of plastic, plastic foam molding is the most effective way to reduce the density. And add light to add material and blending light resin two modification methods, only small lower density, its decline, generally only about 50%, the lowest relative density can reach 0. Five or so. The density of the foam products range is very wide.
as a foam products, without substantial loss on the basis of the original mechanical properties, as far as possible to reduce the density, commonly so often choose medium, low foaming products. In lower density at the same time, in order to guarantee a certain temperature, often choose foam structure. The surface and central layers of foam plastic foaming degree, the surface is only a small amount of foam foam or not, while inside a lot of foam. Structure of foam plastic has advantages of strength and light weight. Because foam is commonly used to reduce the density of the plastic, low foaming, so the requirement is not high, foaming agent commonly used chemical foaming agent, sometimes choose physical foaming agent. Considering the strength problem of products, foaming agent addition amount is compared commonly small. Increase the density of plastic is said the original resin, a method of the relative density increases, mainly for the added to mass packing and blending heavy resin.
the brightness improvement the luster of the plastic and plastic mechanical parts, specific measures, which has two kinds of gloss and smooth finish. Gloss measurements to mirror for reference, under the rules of incidence Angle, the mirror reflectivity and the same condition of sample datum of the ratio of reflectivity, glossiness used commonly expressed as percentage, also can omit percent, with gloss unit said. Plastic products the higher gloss, illustrates its surface is shining, but plastic products low gloss than mirror, need high gloss, must the plating and secondary brightening treatment such as polishing.
roughness is defined as: a measure of the state of an object's surface, surface smoothness and flatness. Roughness is commonly used now in place of the concept of gloss, roughness is defined as a representation of surface smoothness and flatness. Surface finish is divided into 14 different level, the higher the level of surface finish, the higher the surface glossiness.
improve gloss plastic method consists of two aspects of meaning, on the one hand is to improve the plastic parts surface gloss, called light modification, on the other hand is reduce the surface gloss of plastic injection molding products processing, known as extinction.
more wonderful sharing: classic plastic powder coating modification, click directly.
or copy the link: http://www. csssld。 cn//html/2016/Info_0505/222。 HTML
nantong on plastic products factory's official website: http://www. csssld。 cn//
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