Shanghai Daoqin Plastics Co., Ltd.

N95口罩—— strong/high large 95% 滤 efficiency

N95口罩 can 够 滤绝 large separation 雾霾, 灰尘, powder, 流感病毒, automotive gas in and other, efficiency less need to 95%. N代 table/sheet not resistant to oil, anti 油, 95代 table/sheet 0.3 micron pellets testing 时 滤 efficiency water 平.

belt/tape 呼吸阀 N95口罩

N95口罩 internal structure

will N95口罩剪开 rear, can to its internal structure main/primary has 三层, its in to retardant function key/critical 层, is in market upper to 29万/吨 熔喷布.

100倍放 large 看口罩熔喷布

 我们 will 熔喷层放 large 100倍 rear 观察熔喷布, can to 熔喷布由无数 ultra- fine fiber versus 交叉, formed 致密 网络.

放 large 100倍（口罩熔喷布, 奥林巴斯显 micro 镜拍摄）

its in, fiber coarse fine large is 1～5 micron between, fiber between complex, can retardant powder 尘, and fine micro and other 进入, meanwhile maintain gas 透 孔洞, therefore, meet/satisfy efficiency, meanwhile meet/satisfy retardant force requirements.

没 has comparison has 伤害, again lower 普通无纺布 做一 lower comparison, in micro lower, although fiber more add uniform, 漂亮, is fiber in 20 micron above, and need large more, 以此, 无纺布 has retardant 隔病毒, fine and small pellets powder 尘.

放 large 100倍（普通无纺布, 奥林巴斯显 micro 镜拍摄）

N95口罩布——静 electrical add (驻极处理)

N95口罩熔喷层, fiber fine also 不够, also need increase electrical, through 进行驻极放 electrical 处理. in scope/range inner 容, outer add electrical pressure （驻极 electrical pressure ）, electrical pressure large, electrical by 束缚 越牢靠, 由此 滤 efficiency 也就越 high.

驻极处理——驻极 masterbatch

熔喷布 surface electrical 荷会随 time decrease, add 入驻极 masterbatch rear, decrease time large large long, 随 驻极 masterbatch add amount increase, electrical maintain rate long, different masterbatch formulation decrease rate different.

备注:    自文献, used for electrical decrease issues

驻极 masterbatch （ usually add 入２-3%）, will polypropylene (PP) ultra- fine fiber positive negative electrical separation 开, solid 定住, make electrical 荷存储 more long time.

 极化 fiber

驻极 masterbatch production enterprise very less, more is to 熔喷布配 sleeve/set masterbatch 厂, usually large.

long production experience, formulation from additives, resin selection, pelletizing temperature degree, screw combined, MFI control, additives content and other a large amount of experiment/testing, combined 驻极处理, optimization property can, retardant force and other indicators, 做 熔喷布也放置 semi year, 1 year, 2 year more again testing property can and other indicators.

through 熔喷布厂, 客户渠道, market upper relatively good masterbatch 厂家, 仅供参考, specific application also and 厂家 熔喷 equipment, process and formulation has 关.

   table/sheet 1 国 inner masterbatch 厂家（待 more new ）

N95口罩 maintenance ——静 electrical 天敌

驻极 rear electrical 荷, time 推移, force decrease low, electrical 荷会游走, 极化效果 decrease low. time 流逝, electrical slow slow 消失, this is is 何Ｎ95口罩 is has shelf life, generally shelf life is year left right. N95口罩 most is water, maintenance tips is water.

N95口罩 in anti process in, pellets by 吸附, electrical by consumption. therefore, use time rear, a large amount of pellets, electrical consumption 完毕, again tool has outer electrical pellets. this is is 何, use N95口罩不 can heavy utilizing causes.