Shanghai Daoqin Plastics Co., Ltd.

熔喷布 as is medical grade core material, its efficiency effect/influence anti 护效果. effect/influence 熔喷布 滤 property can factors very more, fiber density, structure, thick degree and density and other.

但 is, as is 口罩 空 gas material, if material 太紧密, 孔隙太 small, retardant force large, use method 顺利吸入空 gas, 口罩也就失 use value.

this requirements material not only need improve/increase its efficiency, also need can can reduce its retardant force, 而呼吸 retardant force and efficiency is for 矛盾体. electrical 驻极处理 process is solution retardant force and efficiency this for 矛盾体 most good method.

一, 熔喷布 滤 mechanism

in 熔喷 滤材 material mechanism in, 普遍认 can mechanism main/primary has expand dispersion, 截留, property 碰撞, heavy force drop and electrical 吸附五 types mechanism. due to front types principle is machine retardant 隔, therefore 熔喷布 滤 mechanism can simple nano is machine retardant and electrical 吸附.

二, machine retardant 隔

polypropylene (PP) 熔喷布 fiber 直径平均 is 2～5μm, gas in large 于5μm can by 熔喷布 retardant in outer.

当 micro 尘直径 small 于3μm时, due to 熔喷布 in fiber machine and 隔层交叉排列 molding, formed more bending fiber 滤层, micro various type type bending or 路径时, micro by machine 械 滤式 范德华 force in fiber surface.

当 pellets and gas speed degree relatively large 时, gas 流接近 滤材 material retardant 而绕流, pellets due to property function 脱离流线直接 and fiber by 捕获.

当 pellets very small speed very low 时, pellets 因布朗运动 generate expand dispersion 而撞击 to fiber upper by 捕获.

三, electrical 吸附

静 electrical electrical is 指当 滤材 material fiber belt/tape electrical 时, through electrical fiber (驻极体) force achieve for micro 粒 捕获. powder 尘, fine 菌, and other micro 粒经 滤材 material 时, power/electricity not only can has 效 吸引 belt/tape electrical micro 粒, but also electrical 感应效应捕获感应极化 in property pellets, 随 静 electrical improve/increase, electrical function strong/high.

四, electrical process introduction

due to 普通熔喷无纺布 滤 efficiency to 70%, pure 粹靠熔喷 ultra- fine fiber fiber fine, small, rate high fiber 三维集 combined machine retardant function is 不够, therefore 熔喷 滤材 material 普遍都 is through electrical process for 熔喷布添 add electrical electrical 荷效应, utilizing electrical methods improves efficiency, make its efficiency can to 99.9% to 99.99%, very thin 一层就 can to standards, retardant force also small.

currently electrical methods main/primary has electrical filament method, electrical electrical method, scratch electrical method, hot method, low can electronics 束轰击 method and other, its in electrical electrical method is currently most 佳 静 electrical methods.

electrical electrical method is 熔喷纤网 in front through electrical device electrical 极(electrical pressure generally is 5-10KV)一组 or more electrical electrical methods make 熔喷材 material belt/tape upper electrical 荷, add high pressure 时针尖 lower 方 空 gas generate electrical electrical 离, generate local 击穿放 electrical, 载流子受 to electrical function 而沉积 to 熔喷布 surface, separation 载流子会 in-depth table/sheet by masterbatch 陷阱捕获, from make 熔喷布 formed is 驻极体 滤材 material.

increase 熔喷布 surface electrical can through electrical electrical method 驻极处理 process obtain, is need let this electrical 储存不衰 decrease, that 就需熔喷驻极体材 material formed separation and structure has electrical maintain. improve/increase 驻极体材 material electrical 荷储存 can force can through tool has electrical 荷存储 property can additives generate electrical 荷陷阱捕获 electrical 荷.

therefore, production used for gas material production and 普通熔喷 production versus ratio, need in production in increase high pressure electrical electrical plant/unit, and need in production raw materials polypropylene (PP) (PP) in add 入驻极 masterbatch, electrical micro 粒.

effect/influence 熔喷布驻极处理效果 main/primary factors

1, electrical conditions: electrical time, electrical 距离, electrical electrical pressure;

2, thick degree;

3, 驻极材 material.