1. Isi akụrụngwa na pretreatment nke nzacha ihe
1). Ihe eji eme eriri: Ekwesịrị ka akpọnwụ eriri sịntetik dị ka polypropylene (PP) na polyester (PET) (ihe dị n'ime mmiri na-erughị ma ọ bụ nhata 0.1%), na eriri anụ ahụ dị ka owu na ajị anụ kwesịrị ka ewepụ ya ma mebie ya.
2). Ihe ndị granular: carbon arụ ọrụ, ájá quartz, wdg dị mkpa ka a sieved na graded (nha nha nha 0.5-5mm), na ụwa diatomaceous kwesịrị ka a na-eme ka ọ dị elu na okpomọkụ dị elu (800 degrees) iji mee ka porosity dịkwuo elu.
3). Ngwakọta ihe mejupụtara: Dịka ọmụmaatụ, ihe nzacha PTFE nwere mkpuchi kwesịrị ka a gwọọ ya na plasma na akwa akwa iji welie adhesion (ike bee Karịrị ma ọ bụ nhata 15N/cm).
Iru mmiri gburugburu (RH Ihe na-erughị ma ọ bụ nhata 40%) kwesịrị ka achịkwa ya nke ọma n'oge a na-eme ọgwụgwọ iji zere mgbanwe na njirimara ihe. Ọmụmaatụ, mgbaze index nke polypropylene eriri na 160-180 ogo kwesịrị kwụsie ike na 25-35g / 10min (ASTM D1238 ọkọlọtọ).
2. Ntụle nke mainstream mmepụta usoro na teknuzu parameters
1). Usoro mgbaze
- Usoro: polymer agbaze → elu-nrụgide ikuku na-agbagharị → eriri eriri na-akpụ
- Akụkụ ndị dị mkpa: dayameta spinneret 0.2-0.4mm, okpomoku ikuku dị ogo 230-280, dayameta eriri 1-10μm
Ngwa -: mmepụta nke elu{1} arụpụtaghị ihe na obere - ihe nzacha nzacha (nrụpụta filtration 99.9% @0.3μm, nguzogide na-erughị ma ọ bụ haha na 50Pa)
2). Usoro ịkụtu agịga
- Usoro: ntinye eriri fiber → multi-mpịakọta efere agịga (ugboro agịga 800-1200 ugboro/min) → nkwado n'ime mmetụta
- Uru: nwere ike imepụta ihe nzacha ihe nzacha atọ{1}, gram arọ nso 100-800g/m², ikike ikuku 5-20cm³/cm²/s
3). Usoro ịgbakọ
- Ọ dị mkpa ịpịnye ihe nzacha metal/seramiki n'ime ntụ ntụ (nrụgide 20-50MPa) wee gbanye ya na oke okpomọkụ (ogo 1100-1300 maka igwe anaghị agba nchara yana ogo 1600 maka alumina)
- Enwere ike ịchịkwa porosity na 30-60%, na nguzogide okpomọkụ dị n'elu 500 degrees
3. Bipute - teknụzụ nhazi yana nkwalite arụmọrụ
1). Mgbanwe ihu igwe:
- Ọgwụgwọ hydrophobic (dị ka akụkụ kọntaktị mkpuchi fluorocarbon Karịrị ma ọ bụ ha nhata na ogo 120)
- Mmecha nke nje bacteria (na-ebunye ion ọlaọcha 0.5-2%)
2). Nkwado ihe owuwu:
- Ultrasonic welding (ugboro 20kHz) iji kwalite ike onuete
- ọgwụgwọ candering na-ekpo ọkụ iji mee ka nkesa nha pore dịkwuo otu (uru CV na-erughị ma ọ bụ ha nhata 15%)