Dai ni na shingjawng hkat ai hpaga lam hta, hpaga hpung law law gaw, langai sha re ai mayak mahkak hpe hkrum sha nga ai: laika ka na matu, shingnip shingna galaw na matu, laminating galaw na matu polymer ntsa hta kam mai ai hku shinggrup lu na matu. Adhesion n kaja ai shaloi, product n kaja ai, arung arai ni hpe jahten kau ai, manu dan ai hku bai galaw ai lam ni byin chye ai. Surface activation hpaji masa yawng hta, corona discharge tsi ladat gaw, grau nna jai lang ai hte tatut galaw mai ai hkum hkrang ladat langai hku nna dan dawng nga ai-mungkan ting na hpaga lam ni kam hpa ai, shi a akyu rawng ai lam hte manu jahpu-htuk manu ai lam ni a majaw.
1. Npawt nhpang ladat: Reactive Plastic ntsa hpe galaw ai
Corona tsi ladat gaw, shi a madung hta, asan sha raitim, n-gun ja ai ntsa lam hpe galai shai ai lam re. Vacuum ra ai low-temperature plasma tsi ladat ni hte n bung ai sha, nbung n-gun hta bungli galaw ai majaw, ya nga ai galaw shapraw ai lam ni hta loi loi hte hpaw shalawm lu ai. Ndai hku galaw ai: nbung hte hpring ai electrode gap hku nna voltage kaba hpe bang dat ai shaloi, electron hte ion zawn re ai charge rawng ai particle ni hpe lawan ladan galaw ya ai. Ndai n-gun ni gaw neutral gas molecule ni hte lawan ai hku gap hkat nna, ion, electron, atomic oxygen (discharge hta UV radiation a majaw byin pru wa ai) ni lawm ai, n-gun ja ai n-gun dat amyu myu a corona-a hpe shabyin ya ai.
Tengman ai lamik kumla gaw ndai shamu shamawt nga ai amyu bawsang ni, grau nna atomic oxygen ni gaw plastic ntsa hte matut mahkai ai shaloi byin pru wa ai. Shanhte gaw polymer shingnip kata na hydrogen hte carbon atom ni hte matut mahkai nna, hydroxyl (–OH) hte carbonyl (C=O) zawn re ai polar bungli hpung ni hpe shapraw ya ai. Ndai n-gun n rawng ai oxidation gaw n-gun rawng ai lam hpe byin shangun ai. Ndai polar hpung nnan ni gaw, npu na n-gun hte hka lim lu ai atsam hpe jat ya ai hku nna, plastic hpe grau n-gun ja ai hydrogen matut mahkai lam ni hpe shabyin ya nna, van der Waals n-gun ni hpe ink, coating, hte adhesives ni hte -n--n-gun n-gun hpe kam mai ai hku matut mahkai lu ai hku galai shai ya ai.
2. Hpaji masa hte galaw sa wa ai lam hte galaw sa wa ai lam hpe hkang ai lam
Sut masa lam hta jai lang ai corona tsi ladat ni hpe galaw shapraw ai ladat ni hta n-gun n rawng ai sha hkan nang hkra galaw da ai rai nna, film extrusion galaw ai shaloi (sh) dip shapraw ai aten hta inline hku nna lang chye ai. Kaja wa nga yang, n-gun kaba ai -n-gun dat shapraw ai jak, electrode (dai gaw kaja ai, n kaja ai, bipolar, shing nrai AC rai mai ai), plastic npu na n-gun dat hpe lai di ai grounded roller ni lawm ai. Ionization shara gaw active electrode hte ni htep ai shara kaw nga nna, n-gun ja ai ion amyu (positive (sh) negative) gaw electrode a polarity hta madung nga ai.
Corona tsi lajang ai lam awng dang na matu, n-gun rawng ai lam gaw ahkyak dik rai nga ai, dai majaw, galaw sa wa ai lam hpe hkang lu na matu ahkyak nga ai. Hpaga galaw ai ni gaw, plastic arung arai hte ra sharawng ai mahtai ni hpe hkan nna, control panel hku nna, corona power ngu shamying ai tsi lajang ai n-gun- hpe gram lajang mai ai. Dai hta n-ga, tsi tsi ai shara (dwell time) hta substrate aten la ai aten hpe, conveyor a lawan ai hku hkang ai (frequency converter hte gram lajang mai ai), atsawm sha shadawn shadang tawn da ra ai. Adhesion hpe grau kaja hkra galaw na matu, activation law law ra ai, raitim, plastic hpe hkra machyi hkra n galaw ra ai. Ndai ladat hpe npawt nhpang ntsa ntsa tsi lajang ai lam hku sawn la ma ai, hpa majaw nga yang, ntsa ntsa na physicochemical activity hpe jat ya ai-dai gaw, n-gun ja ai n-gun hpe n-gun ja shangun ai, n-gun ja ai, grau n-gun ja ai texture hpe shabyin ya ai majaw re.
3. Hpaga lam hta jai lang ai lam hte arung arai ni a shingdu labau
Corona tsi lajang ai lam gaw plastic ni hpe n-gun n rawng hkra galaw na matu ra kadawn nga ai, grau nna shingra tara hku nna n-gun n rawng ai hydrophobic arung arai ni hpe n-gun rawng hkra galaw na matu ra kadawn nga ai. Dai hpe packaging, laika dip ai, hte hpun palawng galaw ai bungli ni hta grai lang ai. Plastic film hte foil ni a matu, grau kaja ai laika ka ai atsam, grau n-gun ja ai lamination, hte barrier coating galaw ai lam hpe grau kaja hkra galaw ya ai-n-gun n rawng ai (sh) n-gun n rawng ai zawn re ai n kaja ai lam ni hpe shayawm kau ya ai. Textile galaw ai hta, polyester hte polypropylene zawn re ai synthetic hpun palawng ni (hpun n-gun ja ai ngu mying kaba ai) ni gaw, ink hte ngut kre ai lam ni hpe grau hkap la lu na matu, corona tsi lajang ai lam hpe lu la ma ai.
Polyolefins law malawng hte n-gun rawng ai polymers ni a matu kaja ai hku bungli galaw ai raitim, corona tsi gaw langai sha -size-htuk ai-yawng hpe n mai lang ai. Grai n-gun n law ai-npu-arung arai ni zawn re ai fluoroplastics ni hpe grau nna n-gun ja ai (sh) laksan tsi lajang ai lam ni ra na re. Raitim, bungli galaw ai shara law malawng a matu-polyethylene, polypropylene, hte polyester film ni zawn re ai arung arai ni hta -corona tsi lajang ai lam gaw manu jahpu n jaw ra ai, kam mai ai hparan ladat langai rai nga ai. Shi a lit gaw grai kaja hkra-gaw da ai majaw, dielectric barrier discharge (DBD) jai lang ai lam a gat lawk (dai hta corona tsi lajang ai lam mung lawm ai) matut nna rawt jat wa nga ai, dai hpe bungli galaw lu ai plastic ntsa ni hpe ayan ra kadawn nga ai majaw re.
4. Hkap la na matu zai ladat myit yu ra ai lam ni
Ndai hpaji masa hpe hkap la na matu myit mada nga ai mari ai lam hparan ai ni hte engineer ni a matu, madung tara ni hpe chye na ai gaw shawng nnan na lahkam sha rai nga ai. Tengman ai corona tsi tsi ai wa hpe lata ai gaw manu hte seng ai sha n rai-hpaji lam hta madi shadaw ai lam, jak rung hpe kam hpa mai ai lam, tsi tsi ai madang ni hpe n galai shai ai sha jaw ya lu ai atsam ni hte seng ai. Ndai ni gaw galaw shapraw ai atsam hpe makawp maga na matu ahkyak ai. Corona tsi lajang ai lam gaw, shawng tsi lajang ai lahkam langai hku nna mung kaja dik htum galaw ya ai, law malawng gaw, plastic ntsa hpe kaja dik htum matut mahkai na matu, madung jasan jaseng ai lam (sh) sau shayawm ai lam ni hpe hkan sa ai.
Daw dan lam
Plastic hpe Corona tsi lajang ai lam gaw npawt tara hku nna asan sha rai tim, tatut hta gaw n-gun ja ai: plastic ntsa na molecular layers ni hpe galai shai ya ai reactive nbung plasma hpe galaw na matu wan n-gun hpe jai lang ai. Polar hpung ni hpe jat bang ai hku nna, n-gun n rawng ai, -n-gun n rawng ai n-tsa hpe active, n-gun rawng ai n-tsa de galai shai kau ya ai. Polymers ni gaw, hpaga lam hta ra kadawn ai lam nnan ni hpe hkap la lu na matu rawt jat wa ai hte maren-hkum hkrang n-gun rawng ai arung arai ni kaw nna, rawt jat galu kaba wa ai packaging de-corona tsi lajang ai lam hpe atsawm chye na nna, grau kaja hkra galaw ai gaw, plastic arung arai ni hpe dip shapraw ai, shing nrai, shinggrup da ai gara bungli a matu mung ra kadawn nga ai. Hpaji hparat langai sha n rai; dai gaw, n galai shai ai quality hpe hkam la lu na matu hte galaw shapraw ai hta n kaja ai lam ni hpe shayawm lu na matu re.