Amakuru

Intangiriro: Gukemura Imbogamizi zo Gutunganya Ibinyabutabire bya Polyolefin Bifite Umutwaro Ukabije wa ATH/MDH

Mu nganda zikora insinga, ibisabwa bikomeye byo kugabanya inkongi z'umuriro ni ingenzi kugira ngo abakozi n'ibikoresho byabo bagire umutekano mu gihe habaye inkongi. Hydroxide ya aluminiyumu (ATH) na hydroxide ya manyeziyumu (MDH), nk'ibigabanya inkongi z'umuriro bitagira halogen, bikoreshwa cyane mu nsinga za polyolefin bitewe nuko bibungabunga ibidukikije, bisohora umwotsi muke, kandi bisohora gaze idahumanya. Ariko, kugera ku musaruro ukenewe wo gukumira inkongi z'umuriro akenshi bisaba gushyiramo ATH na MDH nyinshi—ubusanzwe 50–70 wt% cyangwa irenga—muri polyolefin matrix.

Nubwo ubwinshi bw'ibinure butuma umuriro udakora neza, binateza imbogamizi zikomeye mu gutunganya, harimo kwiyongera k'ubushyuhe bw'ibishishwa, kugabanuka k'ubushobozi bwo gutemba, imiterere y'imashini yangiritse, n'ubwiza bw'ubuso buke. Ibi bibazo bishobora kugabanya cyane imikorere myiza y'umusaruro n'ubwiza bw'umusaruro.

Iyi ngingo igamije gusuzuma neza imbogamizi zo gutunganya zijyanye n'ibinyabutabire bya polyolefine biremereye cyane bya ATH/MDH mu gukoresha insinga. Ishingiye ku bitekerezo by'isoko n'uburambe bufatika,igaragaza ngirakamarogutunganyainyongeramusarurokuriGukemura ibi bibazo. Ibisobanuro bitangwa bigamije gufasha abakora insinga n'insinga kunoza imiterere no kunoza imikorere y'umusaruro iyo bakorana n'ibinyabutabire bya polyolefine biremereye cyane bya ATH/MDH.

Gusobanukirwa ATH na MDH Flame Retardants

ATH na MDH ni ibintu bibiri by’ingenzi bitagira halogen bigabanya umuriro, bikoreshwa cyane mu bikoresho bya polymer, cyane cyane mu mikoreshereze y’insinga aho amahame y’umutekano n’ibidukikije ari hejuru. Bikora binyuze mu kubora kw’ingufu no kurekura amazi, bigagabanya imyuka itwika kandi bigashyiraho urwego rwa okiside rurinda ku buso bw’ibikoresho, ibyo bikagabanya umuriro kandi bikagabanya umwotsi. ATH ibora ku bushyuhe buri hagati ya 200–220°C, mu gihe MDH ifite ubushyuhe buri hejuru bwa 330–340°C, bigatuma MDH irushaho kuba nziza kuri polymer zitunganywa ku bushyuhe bwinshi.

1. Uburyo bwa ATH na MDH butuma umuriro udakora burimo:

1.1. Gusenyuka kw'ingirabuzimafatizo:

Iyo bishyushye, ATH (Al (OH) ₃) na MDH (Mg (OH) ₂) bihinduka ihinduka ry’ingufu, bikigarurira ubushyuhe bwinshi kandi bigagabanya ubushyuhe bwa polymer kugira ngo bitinde kwangirika k’ubushyuhe.

ATH: 2Al (OH) ₃ → Al₂O₃ + 3H₂O, ΔH ≈ 1051 J / g

MDH: Mg(OH)₂ → MgO + H₂O, ΔH ≈ 1316 J/g

1.2. Irekurwa ry'umwuka w'amazi:

Umwotsi w'amazi urekurwa ugabanya imyuka igurumana ikikije polymer kandi ukabuza ogisijeni kwinjira, bikabuza gutwika.

1.3. Imiterere y'ibice birinda:

Oxyde z'icyuma zikomokaho (Al₂O₃ na MgO) zihurira hamwe n'urwego rwa polymer char zigakora urwego rw'uburinzi rurerure, rubuza ubushyuhe na ogisijeni kwinjira kandi rukabangamira irekurwa ry'imyuka itwika.

1.4. Kugabanya umwotsi:

Uru ruhago rurinda kandi rukuramo utwo duce tw'umwotsi, bigagabanya ubucucike bw'umwotsi muri rusange.

Nubwo imikorere yazo myiza cyane mu gukumira inkongi z'umuriro n'inyungu ku bidukikije, kugera ku bipimo byo hejuru mu gukumira inkongi z'umuriro akenshi bisaba 50–70 wt% cyangwa irenga ya ATH/MDH, ari nayo mpamvu nyamukuru y'ibibazo byo gutunganya nyuma yaho.
2. Imbogamizi z'ingenzi mu gutunganya ATH/MDH Polyolefini zifite umutwaro mwinshi mu gukoresha insinga

2.1. Imiterere y'indwara ya rheological yangiritse:

Imitako myinshi yuzuza ibintu yongera cyane ubushyuhe bwo gushonga kandi ikagabanya ubushobozi bwo gutemba. Ibi bituma gushonga no gutemba mu gihe cyo gusohora ibintu bigorana, bigasaba ubushyuhe bwinshi bwo kubitunganya no gukata ingufu, ibyo byongera ingufu zikoreshwa kandi bikihutisha ubusaza bw'ibikoresho. Kugabanuka k'umuvuduko wo gushonga kandi bigabanya umuvuduko wo gusohora ibintu no gukora neza.

2.2. Imiterere yagabanutse ya mekanike:

Ingano nini y’ibice bito bito bigabanya imiterere ya polymer, bigabanya cyane imbaraga zo gukurura, uburebure bw’aho bicikiye, n’imbaraga z’ingaruka. Urugero, gushyiramo 50% cyangwa irenga bya ATH/MDH bishobora kugabanya imbaraga zo gukurura ku kigero cya 40% cyangwa kirenga, bigatera ikibazo ku bikoresho byoroshye kandi biramba.

2.3. Ibibazo byo gukwirakwira kw'abantu:

Uduce twa ATH na MDH dukunze kwibumbira muri matrix ya polymer, bigatuma habaho aho imbaraga ziyongera, imikorere ya mekanike igabanuka, ndetse n'inenge zo gusohora nk'ubukana bw'ubuso cyangwa utubyimba.

2.4. Ubuziranenge bw'ubuso budahagije:

Ubushyuhe bwinshi bwo gushonga, gukwirakwira nabi kw'ibice, no kuba ibintu bidahuye neza n'ibice bya polimeri bishobora gutuma ubuso busohokamo ibintu buba bubi cyangwa butangana, bigatuma habaho "uruhu rw'inyama" cyangwa ubwiyongere bw'ibice. Kwiyongera kw'ibice ku bice (die drool) bigira ingaruka ku isura no ku ikorwa ry'ibice.

2.5. Ingaruka ku mutungo w'amashanyarazi:

Ingano nyinshi z'ibinure n'ikwirakwira ry'amazi mu buryo butaringaniye bishobora kugira ingaruka ku miterere ya dielectric, nko kwirinda ingano y'amazi. Byongeye kandi, ATH/MDH ifite ubushobozi bwo kwinjiza amazi mu buryo bukabije, ibi bikaba bishobora kugira ingaruka ku mikorere y'amashanyarazi no kudatezuka igihe kirekire mu bidukikije bikonje.

2.6. Idirishya rito ryo gutunganya:

Ingano y'ubushyuhe bwo gutunganya polyolefini zirinda umuriro mwinshi ni nto. ATH itangira kubora hafi 200°C, mu gihe MDH ibora hafi 330°C. Hakenewe kugenzura ubushyuhe neza kugira ngo hirindwe kubora imburagihe no kwemeza imikorere irinda umuriro n'ubuziranenge bw'ibikoresho.

Izi mbogamizi zituma gutunganya polyolefini za ATH/MDH zifite umutwaro mwinshi biba ingorabahizi kandi zigagaragaza ko ari ngombwa gukoresha uburyo bwiza bwo gutunganya.

Kugira ngo ibyo bibazo bikemuke, hakozwe kandi hakoreshwa ibikoresho bitandukanye byo gutunganya insinga. Ibi bifasha kunoza imikorere y’urusobe rw’insinga, kugabanya ubukana bw’ingufu zishongeshwa, no kongera ikwirakwira ry’urusobe rw’insinga, binoza imikorere y’urusobe rw’insinga ndetse n’imiterere yarwo ya nyuma.

Ni izihe mfashanyigisho zo gutunganya zifasha cyane mu gukemura ibibazo byo gutunganya no kunoza ubuso bw'ibinyabutabire bya polyolefin biremereye cyane bya ATH/MDH mu nganda zikoresha insinga?

Inyongeramusaruro zishingiye kuri silikoni n'ibikoresho bifasha mu gukora:

SILIKE itanga uburyo butandukanye bwo gukoraibikoresho byo gutunganya hakoreshejwe polysiloxaneku bikoresho bisanzwe bya thermoplastics na pulasitiki z’ubuhanga, bifasha mu kunoza uburyo bwo gutunganya no kunoza imikorere y’ibicuruzwa birangiye. Ibisubizo byacu bitandukanye kuva kuri silicone masterbatch yizewe ya LYSI-401 kugeza kuri SC920 nshya—yakozwe kugira ngo itange umusaruro mwiza kandi yizewe mu gusohora insinga za LSZH na HFFR LSZH zifite umutwaro mwinshi, zidafite halogen.

By'umwihariko,Inyongeramusaruro zikozwe muri silike ikoresheje silicone ya SILIKE UHMWbyagaragaye ko ari ingirakamaro ku bintu bya polyolefine bigabanya umuriro bya ATH/MDH mu nsinga. Ingaruka z'ingenzi zirimo:

1. Kugabanuka k'ubushyuhe bw'ibishongeshonge: Polysiloxanes yimukira ku buso bw'ibishongeshongeshonge mu gihe cyo kubitunganya, igakora firime igabanya ubushyuhe n'ibikoresho kandi ikarushaho gutuma amazi atemba neza.

2. Gukwirakwiza neza: Inyongera zishingiye kuri silicon zituma ATH/MDH ikwirakwira neza muri polymer matrix, bigabanya guterana kw'uduce.

3. Ubwiza bw'ubuso buteye imbere:LYSI-401 silicone masterbatchbigabanya kwirema kw'ibice n'ivunika ry'ibice, bigatuma ubuso bworoshye bworoshye kandi bufite inenge nke.

4. Umuvuduko wihuta w'umurongo:Ubufasha bwo gutunganya Silicone SC920ikwiriye gusohora insinga ku buryo bwihuse. Ishobora gukumira kudahindagurika k'umurambararo w'insinga no kunyerera kw'imigozi, no kunoza umusaruro. Mu gihe kimwe, ingano y'ingufu zo gusohora yiyongereyeho 10%.

5. Imiterere myiza ya mekanike: Mu kongera uburyo bwo gukwirakwiza ibyuma no gufatana hagati y’urukuta, silicone masterbatch irushaho kunoza uburyo bwo kudashira kw’urukuta n’imikorere ya mekanike, nko kugira imiterere y’urukuta no kurekura igihe rucitse.

6. Guhuza imbaraga zirinda umuriro no gukumira umwotsi: inyongera za siloxane zishobora kongera gato imikorere irinda umuriro (urugero, kongera LOI) no kugabanya imyuka ihumanya.

SILIKE ni ikigo gikomeye mu gukora inyongeramusaruro zishingiye kuri silicone, ibikoresho byo gutunganya, na elastomer za silicone zikoresha thermoplastic mu karere ka Aziya na Pasifika.

Ibyacuibikoresho byo gutunganya siliconezikoreshwa cyane mu nganda za thermoplastics na cables kugira ngo zikore neza, zinoze ikwirakwizwa ry’ibinure, zigabanye ubushyuhe bushonge, kandi zitange ubuso bworoshye kandi bunoze.

Muri byo, silicone masterbatch LYSI-401 hamwe n'ubufasha bushya bwo gutunganya silicone bwa SC920 ni ibisubizo byagaragaye ko ari ibisubizo bya polyolefin ya ATH/MDH irinda umuriro, cyane cyane mu gusohora insinga za LSZH na HFFR. Mu guhuza inyongeramusaruro za silicone za SILIKE n'ibikoresho bizikora, abakora bashobora kugera ku musaruro uhamye no ku bwiza buhamye.

If you are looking for silicone processing aids for ATH/MDH compounds, polysiloxane additives for flame-retardant polyolefins, silicone masterbatch for LSZH / HFFR cables, improve dispersion in ATH/MDH cable compounds, reduce melt viscosity flame-retardant polyolefin extrusion, cable extrusion processing additives, silicone-based extrusion aids for wires and cables, please visit www.siliketech.com or contact us at amy.wang@silike.cn to learn more.