Amakuru

Iriburiro: Gukemura byinshi-biremereye ATH / MDH Flame-Retardant Polyolefin Ibivanga Gutunganya Ibibazo

Mu nganda zikoresha insinga, ibisabwa bikomeye kugirango umuriro ubuze ni ngombwa kugirango umutekano w'abakozi n'ibikoresho mu gihe habaye umuriro. Hydroxide ya Aluminium (ATH) na hydroxide ya magnesium (MDH), nk'ibikoresho byo mu bwoko bwa halogene bitagira umuriro, bikoreshwa cyane mu miyoboro ya kabili ya polyolefine bitewe n’ibidukikije byangiza ibidukikije, imyuka ihumanya ikirere, hamwe no gusohora gaze idashobora kwangirika. Ariko, kugera kubikorwa bisabwa bya flame-retardant akenshi bisaba kwinjiza imitwaro myinshi ya ATH na MDH - mubisanzwe 50-70 wt% cyangwa irenga - muri matrise ya polyolefin.

Mugihe ibintu byinshi byuzuza byongera cyane umuriro wumuriro, binatangiza ibibazo bikomeye byo gutunganya, harimo kongera ubukonje bwashonga, kugabanuka gutembera, imiterere yubukanishi, hamwe nubuziranenge bwubutaka. Ibi bibazo birashobora kugabanya cyane imikorere yumusaruro nubwiza bwibicuruzwa.

Iyi ngingo igamije gusuzuma gahunda zijyanye no gutunganya zijyanye no gutwara ibintu byinshi ATH / MDH flame-retardant polyolefin ivanze mubikoresho bya kabili. Ukurikije ibitekerezo byamasoko nuburambe bufatika, niiranga ingirakamarogutunganyainyongeraKurigukemura ibyo bibazo. Ubushishozi butangwa bugamije gufasha abakora insinga ninsinga guhuza imikorere no kunoza imikorere mugihe bakorana nuburemere bwinshi bwa ATH / MDH flame-retardant polyolefin.

Gusobanukirwa ATH na MDH Flame Retardants

ATH na MDH nibintu bibiri byingenzi bidafite ingufu, bigabanya umuriro wa halogene bikoreshwa cyane mubikoresho bya polymer, cyane cyane mubikoresha insinga aho umutekano n’ibidukikije biri hejuru. Bikora mukwangirika kwa endothermic no kurekura amazi, kugabanya imyuka yaka kandi bigakora urwego rukingira oxyde irinda ibintu, bigabanya umuriro kandi bikagabanya umwotsi. ATH ibora hafi ya 200-22 ° C, mugihe MDH ifite ubushyuhe bwo hejuru bwangirika bwa 330–340 ° C, bigatuma MDH ikwiranye na polymers zitunganywa mubushyuhe bwinshi.

1. Uburyo bwa flame-retardant uburyo bwa ATH na MDH burimo:

1.1. Kwangirika kwa Endothermic:

Iyo ushyushye, ATH (Al (OH) ₃) na MDH (Mg (OH) ₂) bigenda byangirika, bikurura ubushyuhe bukabije kandi bikagabanya ubushyuhe bwa polymer kugirango bidindiza kwangirika kwubushyuhe.

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

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

1.2. Kurekura imyuka y'amazi:

Imyuka y'amazi yarekuwe igabanya imyuka yaka umuriro hafi ya polymer kandi ikabuza ogisijeni kwinjira, ikabuza gutwikwa.

1.3. Gushiraho ibice birinda:

Ibyuma bivamo ibyuma (Al₂O₃ na MgO) bifatanya na polymer char layer kugirango bibe urwego rukingira, rukumira ubushyuhe na ogisijeni kwinjira kandi bikabuza kurekura imyuka yaka.

1.4. Kurwanya umwotsi:

Igice cyo gukingira kandi cyerekana ibice byumwotsi, bikagabanya ubwinshi bwumwotsi.

Nubwo ibikorwa byabo byiza bya flame-retardant nibikorwa by ibidukikije, kugera kumurongo mwinshi wa flame-retardant mubisanzwe bisaba 50-70 wt% cyangwa irenga ya ATH / MDH, niyo mpamvu nyamukuru itera ibibazo byakurikiyeho.
2. Ingenzi zingenzi zo gutunganya ibibazo byumuvuduko mwinshi ATH / MDH Polyolefins muri Cable Porogaramu

2.1. Imiterere mibi ya rheologiya:

Ibintu byinshi byuzuza byongera cyane gushonga kwijimye no kugabanya gutembera. Ibi bituma plastike no gutembera mugihe cyo kuyikuramo bigorana, bisaba ubushyuhe bwo hejuru bwo gutunganya no gukata imbaraga, byongera ingufu kandi byihutisha kwambara. Kugabanuka gushonga nabyo bigabanya umuvuduko wo gukuramo no gukora neza.

2.2. Kugabanya imiterere yubukanishi:

Umubare munini wuzuza ibinyabuzima bitagabanije materix ya polymer, bigabanya cyane imbaraga zingutu, kurambura kuruhuka, nimbaraga zingaruka. Kurugero, kwinjiza 50% cyangwa birenga ATH / MDH birashobora kugabanya imbaraga zingana hafi 40% cyangwa zirenga, bigatera ikibazo kubikoresho byoroshye kandi biramba.

2.3. Ibibazo byo gutatanya:

Ibice bya ATH na MDH bikunze guhurira muri materix ya polymer, biganisha ku ngingo yibanda ku guhangayika, kugabanya imikorere yubukanishi, hamwe nudusembwa twavunitse nko gukomera hejuru cyangwa kubyimba.

2.4. Ubuso bubi:

Ubushuhe bukabije bwo gushonga, gutatana nabi, hamwe no kuzuza kwuzuye-polymer birashobora gutuma ubuso bwimbere butagaragara cyangwa butaringaniye, biganisha kuri "sharkskin" cyangwa bipfa kwiyubaka. Kwiyongera ku rupfu (die drool) bigira ingaruka ku isura no ku musaruro uhoraho.

2.5. Ingaruka z'umutungo w'amashanyarazi:

Ibintu byinshi byuzuzanya hamwe no gutatana kutaringaniye birashobora kugira ingaruka kumiterere ya dielectric, nko kurwanya amajwi. Byongeye kandi, ATH / MDH ifite uburyo bwinshi bwo kwinjiza ubuhehere, bushobora kugira ingaruka kumikorere y'amashanyarazi no gutuza igihe kirekire mubidukikije.

2.6. Idirishya ritunganya:

Ubushyuhe bwo gutunganya ubushyuhe buringaniye bwa flame-retardant polyolefine iragufi. ATH itangira kubora hafi 200 ° C, mugihe MDH ibora nka 330 ° C. Kugenzura ubushyuhe nyabwo burasabwa kugirango wirinde kubora hakiri kare kandi urebe neza imikorere ya flame-retardant hamwe nubusugire bwibintu.

Izi mbogamizi zituma gutunganya ibintu byinshi biremereye ATH / MDH polyolefins bigoye kandi bikagaragaza akamaro ko gufasha gutunganya neza.

Kugira ngo rero ukemure ibyo bibazo, imfashanyo zitandukanye zo gutunganya zateguwe kandi zikoreshwa mu nganda. Izi mfashanyo zitezimbere guhuza polymer-kuzuza, guhuza ibishishwa bya elegitoronike, no kongera ikwirakwizwa ryuzuza, bigahindura imikorere yimikorere ndetse nubukanishi bwa nyuma.

Nibihe bifasha gutunganya bifite akamaro kanini mugukemura gutunganya nubuziranenge bwubuso bwibintu byinshi biremereye ATH / MDH flame-retardant polyolefin ivanze mubikorwa byinganda?

Silicone ishingiye ku nyongeramusaruro n'ibikoresho byo gukora:

SILIKE itanga ibintu byinshiibikoresho bifasha gutunganya polysiloxanekubintu byombi bya termoplastike na plastiki yubuhanga, bifasha kunoza gutunganya no kuzamura imikorere yibicuruzwa byarangiye. Ibisubizo byacu biva kumurongo wizewe wa silicone masterbatch LYSI-401 kugeza kuri SC920 yongeyeho udushya-yakozwe kugirango itange umusaruro ushimishije kandi wizewe mumitwaro myinshi, halogen idafite LSZH na HFFR LSZH.

By'umwihariko,SILIKE UHMW silicone ishingiye kumavuta yo gutunganyabyagaragaye ko ari ingirakamaro kuri ATH / MDH flame-retardant polyolefin ivanze mumigozi. Ingaruka z'ingenzi zirimo:

1. Kugabanya ubukonje bwashonga: Polysiloxane yimukira hejuru yubushonga mugihe cyo kuyitunganya, ikora firime yamavuta igabanya ubushyamirane nibikoresho kandi igateza imbere.

2. Gukwirakwiza gukwirakwizwa: Inyongeramusaruro ishingiye kuri Silicon iteza imbere gukwirakwiza ATH / MDH muri matrike ya polymer, bigabanya uduce duto duto.

3. Kunoza ubwiza bwubuso:LYSI-401 silicone masterbatchigabanya gupfa kwiyubaka no gushonga kuvunika, kubyara ubuso bworoshye bwa extrudate hamwe nudusembwa duke.

4. Umuvuduko wihuse wumurongo:Imfashanyo yo gutunganya silicone SC920irakwiriye kwihuta cyane gusohora insinga. Irashobora gukumira insinga ya diameter idahungabana no kunyerera, kandi igateza imbere umusaruro. Mugihe kimwe cyo gukoresha ingufu, ubwinshi bwo gukuramo bwiyongereyeho 10%.

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SILIKE niyambere ikora ibicuruzwa byongera silicone, ibikoresho byo gutunganya, hamwe na elastomeri ya silicone ya termoplastique mukarere ka Aziya-pasifika.

Iwacuibikoresho byo gutunganya siliconezikoreshwa cyane mubikorwa bya thermoplastique ninganda za kabili kugirango hongerwe gutunganya, kunoza ikwirakwizwa ryuzuza, kugabanya ubukonje bwashonze, no gutanga ubuso bworoshye hamwe nubushobozi buhanitse.

Muri byo, silicone masterbatch LYSI-401 hamwe nubufasha bushya bwo gutunganya silicone ya SC920 ni ibisubizo byagaragaye kubisubizo bya ATH / MDH flame-retardant polyolefin, cyane cyane muri LSZH na HFFR. Muguhuza SILIKE ya silicone ishingiye ku nyongeramusaruro n'ibikoresho bifasha umusaruro, abayikora barashobora kugera ku musaruro uhamye kandi ufite ireme.

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.