Shanghai Daoqin Plastics Co., Ltd.

cost pressure requirements in production modified material or products 时候不 不无奈 selection recycled plastics use, versus use recycled plastics 朋友们 very more 人不 不面临 this issues: how to 判定购买 recycled plastics quality? made testing testing 吗? has ensure recycled plastics batch stability property, dilute coating use 吗? that need batch modified material or products quality issues. 因购买 recycled plastics formed product quality issues, use recycled plastics large to.

笔者曾学艺 and 一 收破烂 老汉, milli gas 说, that true is high, high, high grade engineering 师也没 has water 平, 呵呵, 老汉告诉我, need use 眼看, 靠手摸他就 can separation recycled plastics types type and quality, is 看老汉 table/sheet 演, can is 整整浪费 一包烟, 呵呵. 闲话不说, this will 笔者 一 experience and large separation lower, how to selection need, combined recycled plastics.

第一, large must 知道 一点常识就 is: recycled plastics price is 仅仅由 quality 决定, can this 么说, recycled plastics price factors is quality, that is what 呢? is color, 越接近 raw materials color price high, 以PP is 例, remove upper to type outer, has large 白, 二白, and other and other 之说, most low and other grade is black, therefore, non has method, production recycled plastics 厂家也不会 recycled plastics production formed black, 当然, specialized material remove outer, ratio 如喷滴灌 belt/tape （ tube/pipe ）, water pipeline use tube/pipe and other, this product 本身就 requirements black, and mixed material is good. production 诸如此 type product recycled plastics, in pelletizing process in has 意识做 formed black, although formed black, this category of product requirements 也决定 this category of recycled plastics quality guaranteed.

第二, 由第一点推论, remove non need product, 哪怕你 most made formed product is black, need can can selection procurement black recycled plastics, causes very simple, black plastics is most difficult use methods quality; another, need selection rear processing add material recycled plastics, 一方面, rear add 入 颜 material can can for rear formulation design and material use generate for resistant 效应, 另一方面, material add 入本身就 for recycled plastics tool has 一定修饰 function, can can effect/influence for quality 判断.

第三, for/regarding density low water density recycled plastics can utilizing force principle use water 判断里面 filling amount how much, 当然, density large water difficult degree has large.

第四, color degree, generally 说, quality high, mixed formed separation less degree high, that milli gloss, dry recycled plastics most good selection, price again low need.

第五, gas 孔, gas more, material quality 越差, gas more generally is mixed formed separation more, processing process in low melting point material or additives 挥发 致, has can can 说, water separation large 也会造 formed gas more, non 也, need recycled plastics basic use di pelletizing, by material water separation in from 第一阶 pelletizing machine rear 就会排掉.

第六, pellets lubricating degree, generally 说, lubricating degree 越差, quality 越差, this and 第二——第五 versus versus formed.

第七, soft hardness, generally 说, recycled plastics pure degree low soft, this is for, 呵呵, 你懂.

第八, pellet cutting 状态, generally 说, quality good recycled plastics, pellet cutting rear pellets 两端切口 toward inner 凹, quality toward outer 凸.

第九, use 火烧一 lower, rear wire drawing, wire drawing long, fine, fine filament upper 杂质越 less, quality good. this need 记住, color is very good selection, has 时候因 additives or mixed its it material issues, very difficult through color, odor, 烟雾判断.

第十, use 手摸, 手感越 good quality good, glass fiber reinforcement recycled plastics in 此列.

第十一, for/regarding hard plastics, can use hard material 砸扁, thin good, rear for, for degree large quality good.

第十二, use 鼻子闻, 抓起一 recycled plastics to lower 闻, odor large, quality 越差.

说 this more, 当然不 is can, need comprehensive 起 进行判定, specific standards, large separation is can 意会不 can 言传, 坚持不懈 实践, 你总会判断 recycled plastics quality.