Dè a th ’ann an meltblown nonwoven | JINHAOCHENG

Aig an àm seo, leaghadh stuth nonwoven air a shèideadh gu farsaing ann an raon stuthan sìoltachaidh.Since sna 1970an, chaidh grunn theicneòlasan cosgais agus sìoltachain gun samhail le cosgaisean electrostatach le bhith a’ measgachadh diofar fhiodh a leasachadh agus a chleachdadh. Is e an toradh sa bhad an electret electrostatach gnàthach method.Tha na prìomh dhòighean electret an-dràsta a ’toirt a-steach snìomh electrostatach, cosgais corona, dealanachadh brisidh, polarachadh teirmeach agus bomadh beam dealan lùth ìosal.Due gu diofar dhòighean electret electrostatic (pròiseasan) de stuthan, tha feartan bhuidhnean electret air an cruthachadh cuideachd gu math eadar-dhealaichte.

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Gu dearbh, chan eil coileanadh sìoltachaidh de meltwoown nonwoven ach nas lugha na 70%, agus chan eil e gu leòr a bhith an urra gu h-iomlan ris a ’bhuaidh bacaidh meacanaigeach a th’ aig cruinneachadh trì-thaobhach de shnàthadan ultrafine le snàithleach grinn, beàrnan beaga agus porosity àrd.Otherwise, dìreach le bhith a ’meudachadh tiugh cuideam gram an stuth àrdaichidh e gu mòr an aghaidh filtration.Therefore, bidh leaghadh stuthan sìoltachain sa chumantas a’ cur buaidh cosgais electrostatach ri bhith a ’leaghadh clò spraeadh tro phròiseas taghaidh electrostatach. Faodaidh an èifeachdas sìoltachaidh 99.9% gu 99.99% a ruighinn le bhith a ’cleachdadh modh electrostatic method.KN95.

Bidh stuth sìoltachain èadhair electret A ’CLEACHDADH polarity an t-snàithle fhèin gus a bhith a’ sanasachadh duslach electrostatach agus a ’glacadh bacteria agus bhìorasan. Thathas a’ cleachdadh porosity àrd agus togalaichean electretatic electret de shnàthadan ultrafine gus càileachd sìoltachaidh àrd-èifeachdais agus dìonachd ìosal a thoirt seachad. Ann an uidheamachd gnìomh fìor antibacterial a bheil clò leaghte electret a ’brosnachadh raon làidir electrostatach agus a’ sruthadh meanbh-bhitheòlasan bacteria, a ’dèanamh milleadh air pròtain agus searbhag niuclasach, a’ sgrios bacteria structar uachdar, a ’marbhadh bacteria, a’ leigeil a-mach ions àicheil tourmaline fhèin a ’cur bacadh air cuid de phròiseasan metabolaig microbial, a’ toirt a-steach an siostam analach, gnìomhachd an enzyme, gluasad mòr bhon bhalla cealla, mar sin a ’cur bacadh air ceallan bacterial buaidh antibacterial.

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The melting - jet electret filter materials capture particles mainly through the dual action of mechanical barrier and electrostatic adsorption.Mechanical resistance is closely related to the structure and properties of materials: when the molten spraying cloth is charged by corona with a voltage of several hundred to several kilovolts, the fibers diffuse into a network of holes due to electrostatic repulsion, and the size between the fibers is much larger than the size of dust, thus forming an open structure.When the dust passes through the molten jet filter material, electrostatic effect can not only attract charged dust particles effectively, but also capture polarized neutral particles by electrostatic induction effect.The higher the electrostatic potential of the material, the higher the charge density of the material, the more point charge, the stronger the electrostatic effect.Corona discharge can greatly improve the filtration performance of polypropylene melting - spraying cloth.The addition of tourmaline particles can effectively improve the electret efficiency, increase the filtration efficiency, reduce the filtration resistance, increase the surface charge density of the fiber, and enhance the storage capacity of the fiber net.The comprehensive effect is better when 6% tourmaline electret is added.Too much electret material will instead increase carrier movement neutralization.

Gu h-àrd tha e mu dheidhinn: dè a th ’ann a bhith a’ toirt a-steach clò neo-fhighte leaghte, an dòchas cuideachadh sònraichte a thoirt dhut; Bidh sinn a ’saothrachadh BEF99 meltblown , sìoladh meltblown, meltblown nonwoven Fabric airson masg aghaidh ; Fàilte gu co-chomhairleachadh ~


Ùine puist: Sep-21-2020
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