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Okwu Mmalite: Idozi Nsogbu Nhazi Polyolefin Compounds ATH/MDH nke Na-egbochi Ọkụ Na-arụ Ọrụ nke Ukwuu

N'ụlọ ọrụ waya, ihe ndị siri ike achọrọ maka igbochi ire ọkụ dị mkpa iji hụ na nchekwa nke ndị ọrụ na akụrụngwa ma ọ bụrụ na ọkụ agbaa. A na-eji aluminum hydroxide (ATH) na magnesium hydroxide (MDH), dị ka ihe mgbochi ọkụ na-enweghị halogen, eme ihe nke ukwuu na polyolefin cable compounds n'ihi ịdị mma gburugburu ebe obibi ha, obere mwepụta anwụrụ ọkụ, na mwepụta gas na-anaghị emebi emebi. Agbanyeghị, iru arụmọrụ nke ihe mgbochi ire ọkụ achọrọ na-achọkarị itinye nnukwu ibu nke ATH na MDH—nke na-abụkarị 50–70 wt% ma ọ bụ karịa—n'ime matrix polyolefin.

Ọ bụ ezie na oke ọdịnaya dị otú ahụ na-eme ka ire ọkụ ghara ịdị irè nke ukwuu, ọ na-ewetakwa nsogbu siri ike nhazi, gụnyere mmụba nke ịgbaze agbaze, mbelata ike mbugharị, mmebi nke ihe onwunwe igwe, na adịghị mma nke elu. Nsogbu ndị a nwere ike ibelata arụmọrụ mmepụta na ịdị mma nke ngwaahịa nke ukwuu.

Isiokwu a na-achọ inyocha nsogbu nhazi nke jikọtara ya na nnukwu ihe ndị na-egbochi ọkụ na-eji ATH/MDH eme ihe na ngwa eriri. Dabere na nzaghachi ahịa na ahụmịhe bara uru, ọ na-eme nke ọma.na-achọpụta dị irènhaziihe mgbakwunyemakaỊnagide ihe ịma aka ndị a. Ebumnuche nke nghọta ndị a bụ inyere ndị na-emepụta waya na eriri aka imeziwanye usoro mmepụta ma melite usoro mmepụta mgbe ha na-arụ ọrụ na ngwakọta polyolefin ATH/MDH nke na-egbochi ire ọkụ.

Ịghọta ihe ndị na-egbochi ọkụ ATH na MDH

ATH na MDH bụ ihe abụọ bụ isi na-egbochi ọkụ na-adịghị na organic, nke na-enweghị halogen, nke a na-ejikarị eme ihe na ihe ndị e ji eme polima, karịsịa n'ọrụ waya ebe nchekwa na ụkpụrụ gburugburu ebe obibi dị elu. Ha na-arụ ọrụ site na mmebi endothermic na mwepụta mmiri, na-agbaze gas ndị na-ere ọkụ ma na-emepụta oyi akwa oxide nchebe n'elu ihe ahụ, nke na-egbochi ọkụ ma na-ebelata anwụrụ ọkụ. ATH na-agbaze na ihe dị ka 200–220°C, ebe MDH nwere okpomọkụ dị elu nke 330–340°C, na-eme ka MDH dịkwuo mma maka polima ndị a na-arụzi na okpomọkụ dị elu.

1. Usoro ndị na-egbochi ire ọkụ nke ATH na MDH gụnyere:

1.1. Njedebe nke endothermic:

Mgbe a kpochara ya ọkụ, ATH (Al(OH)₃) na MDH (Mg(OH)₂) na-emebi ihe site na endothermic, na-amịkọrọ okpomọkụ dị ukwuu ma na-ebelata okpomọkụ polymer iji kwụsị mmebi okpomọkụ.

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

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

1.2. Mwepụ uzuoku mmiri:

Uzu mmiri a na-ewepụta na-agbaze gas ndị na-ere ọkụ gburugburu polima ahụ ma na-egbochi ohere ikuku oxygen, na-egbochi ọkụ.

1.3. Nhazi nke akwa nchekwa:

Ihe ndị na-esi na ígwè oxides (Al₂O₃ na MgO) apụta na-ejikọta ya na oyi akwa char polymer iji mepụta oyi akwa nchekwa dị oke njọ, nke na-egbochi okpomọkụ na ikuku oxygen ịbanye ma na-egbochi mwepụta nke gas ndị na-ere ọkụ.

1.4. Mmechi anwụrụ ọkụ:

Ihe nchekwa ahụ na-amịkọrọkwa ihe ndị na-anaghị amịkọrọ anwụrụ ọkụ, na-ebelata njupụta anwụrụ ọkụ n'ozuzu ya.

N'agbanyeghị arụmọrụ ha dị mma nke na-egbochi ire ọkụ na uru gburugburu ebe obibi ha, iru ọkwa dị elu nke na-egbochi ire ọkụ na-achọkarị 50–70 wt% ma ọ bụ karịa nke ATH/MDH, nke bụ isi ihe na-akpata nsogbu nhazi ndị ọzọ.
2. Isi Ihe Ịma Aka Nhazi nke Polyolefins ATH/MDH Dị Oke Ibu na Ngwa Waya

2.1. Àgwà rheological mebiri emebi:

Ibu dị elu nke ihe e ji emeju ihe na-eme ka viscosity gbazee dịkwuo elu ma belata ohere ịgbawa. Nke a na-eme ka plasticization na mmiri na-esi ike n'oge a na-ewepụta ihe, na-achọ okpomọkụ nhazi dị elu na ike ịkpụ ihe, nke na-eme ka oriri ike dịkwuo elu ma na-eme ka ngwa ngwa yie ihe ngwa ngwa. Mbelata mmiri ịgbaze na-egbochikwa ọsọ mwepụ na arụmọrụ mmepụta.

2.2. Mbelata njirimara igwe:

Nnukwu ihe ndị na-eme ka ihe na-adịghị mma na-eme ka matrix polymer ghara ịdị irè, na-ebelata ike nrụgide nke ukwuu, na-agbatị ogologo oge mgbe a gbajiri ya, na ike mmetụta. Dịka ọmụmaatụ, itinye 50% ma ọ bụ karịa ATH/MDH nwere ike ibelata ike nrụgide site na ihe dị ka 40% ma ọ bụ karịa, na-eweta ihe ịma aka maka ihe eriri na-agbanwe agbanwe ma na-adịgide adịgide.

2.3. Nsogbu nkesa:

Mkpụrụ ndụ ATH na MDH na-agbakọtakarị na matrix polymer, na-ebute ebe nrụgide dị, mbelata arụmọrụ igwe, na ntụpọ extrusion dị ka oke elu ma ọ bụ afụfụ.

2.4. Ọdịdị elu adịghị mma:

Oke viscosity gbazee, enweghị ike ịgbasa nke ọma, na oke ndakọrịta ihe na-ejupụta na polima nwere ike ime ka elu extrude ghara ịdị nkọ ma ọ bụ na-adịghị nhata, nke na-eduga na "akpụkpọ sharks" ma ọ bụ mkpọpụta ihe. Nchikọta na ihe na-agbaze (ihe na-agbaze) na-emetụta ọdịdị na mmepụta na-aga n'ihu.

2.5. Mmetụta ihe onwunwe eletriki:

Oke ọdịnaya nke ihe na-ejupụta na mgbasa na-adịghị mma nwere ike imetụta ihe onwunwe dielectric, dịka iguzogide olu. Ọzọkwa, ATH/MDH nwere oke mmịpụta mmiri, nke nwere ike imetụta arụmọrụ eletriki na nkwụsi ike ogologo oge na gburugburu ebe mmiri dị.

2.6. Windo nhazi dị warara:

Oke okpomọkụ nhazi maka polyolefins ndị na-anaghị ekpo ọkụ nke ukwuu dị obere. ATH na-amalite ire ere ihe dịka 200°C, ebe MDH na-ere ere ihe dịka 330°C. A chọrọ njikwa okpomọkụ kpọmkwem iji gbochie ire ere tupu oge eruo ma hụ na arụmọrụ ya na-egbochi ire ere na iguzosi ike n'ezi ihe nke ihe.

Ihe ịma aka ndị a na-eme ka nhazi polyolefins ATH/MDH dị oke ibu dị mgbagwoju anya ma na-egosipụta mkpa ọ dị inweta ihe enyemaka nhazi dị irè.

Ya mere, iji dozie nsogbu ndị a, emepụtala ma tinye ọtụtụ ihe enyemaka nhazi n'ime ụlọ ọrụ eriri waya. Ihe ndị a na-enyere aka melite ndakọrịta polymer-filler interfacial, belata viscosity gbazee, ma melite mgbasa nke ihe nzacha, na-eme ka arụmọrụ nhazi na njirimara igwe ikpeazụ dịkwuo mma.

Kedu ihe enyemaka nhazi kacha dị irè maka idozi nsogbu nhazi na ịdị mma elu nke ngwakọta polyolefin ATH/MDH dị elu na-egbochi ire ọkụ na ngwa ụlọ ọrụ eriri?

Ihe mgbakwunye na ihe enyemaka mmepụta dabere na silicone:

SILIKE nwere ọtụtụ ọrụ dị iche icheihe eji eme ihe eji eme ihe dabere na polysiloxanemaka ma thermoplastics ọkọlọtọ na plastik injinia, na-enyere aka ime ka nhazi dịkwuo mma ma melite arụmọrụ nke ngwaahịa emechara. Ngwọta anyị sitere na silicone masterbatch LYSI-401 a tụkwasịrị obi ruo na mgbakwunye SC920 ọhụrụ - nke e mepụtara iji nye arụmọrụ na ntụkwasị obi ka mma na mgbasawanye eriri LSZH dị elu, nke na-enweghị halogen na HFFR LSZH.

Kpọmkwem,Ihe mgbakwunye nhazi mmanụ SILIKE UHMW nke sitere na siliconeA chọpụtala na ọ bara uru maka ihe ndị na-egbochi ọkụ na-eji ATH/MDH eme ihe na waya. Mmetụta ndị dị mkpa gụnyere:

1. Mbelata viscosity nke ịgbaze: Polysiloxanes na-akwaga n'elu mmiri gbazere agbaze n'oge nhazi, na-emepụta ihe nkiri na-eme ka mmanụ dị n'ahụ nke na-ebelata esemokwu na akụrụngwa ma na-eme ka ọ na-aga nke ọma.

2. Mgbasawanye nke ọma: Ihe mgbakwunye dabere na silicon na-akwalite nkesa otu nha nke ATH/MDH na matrix polymer, na-ebelata mkpokọta ihe ndị dị na ya.

3. Mma elu dị mma:Ngwakọta silicone LYSI-401na-ebelata mkpokọta ihe na-agbaze agbaze, na-emepụta elu extrude dị nro nke nwere obere ntụpọ.

4. Ọsọ ahịrị ngwa ngwa:Enyemaka Nhazi Silicone SC920Ọ dabara adaba maka mmịpụta waya ngwa ngwa. Ọ nwere ike igbochi enweghị ike ịkwụsi ike na mmịpụta skru, ma melite arụmọrụ mmepụta. N'otu oge ahụ, olu mmịpụta mụbara site na 10%.

5. Njirimara igwe ka mma: Site n'ịkwalite mgbasa nke ihe na-ejupụta na njikọta ihu, silicone masterbatch na-eme ka iguzogide iyi na arụmọrụ igwe dịkwuo mma, dịka ihe mmetụta na ịgbatị oge n'oge ezumike.

6. Njikọta nke na-egbochi ire ọkụ na igbochi anwụrụ ọkụ: ihe mgbakwunye siloxane nwere ike ime ka arụmọrụ nke na-egbochi ire ọkụ dịkwuo mma (dịka ọmụmaatụ, ịbawanye LOI) ma belata mwepụta anwụrụ ọkụ.

SILIKE bụ ụlọ ọrụ na-emepụta ihe mgbakwunye silicone, ihe enyemaka nhazi, na thermoplastic silicone elastomers na mpaghara Eshia na Pacific.

Nke anyịihe eji eme ihe nhazi siliconeA na-ejikarị ya eme ihe n'ọtụtụ ebe na ụlọ ọrụ thermoplastics na waya iji mee ka nhazi dịkwuo mma, melite mgbasa nke ihe nzacha, belata viscosity gbazee, ma nye elu dị nro na arụmọrụ ka mma.

N'ime ha, silicone masterbatch LYSI-401 na ihe ọhụrụ SC920 silicone produced aid bụ ngwọta a nwapụtara maka usoro polyolefin ATH/MDH nke na-egbochi ire ọkụ, ọkachasị na LSZH na HFFR extrusion cable. Site na ijikọta ihe mgbakwunye na ihe enyemaka mmepụta nke SILIKE na silicone, ndị nrụpụta nwere ike nweta mmepụta kwụsiri ike na ịdị mma na-adịgide adịgide.

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.