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Okwu mmalite: Idozi ibu dị elu ATH/MDH ire ọkụ na-egbochi polyolefin ngwakọta na-ahazi ihe ịma aka

N'ime ụlọ ọrụ USB, ihe siri ike chọrọ maka ire ọkụ ọkụ dị mkpa iji hụ na nchekwa nke ndị ọrụ na akụrụngwa n'ọnọdụ ọkụ. Aluminom hydroxide (ATH) na magnesium hydroxide (MDH), dị ka ọkụ na-ere ọkụ na-enweghị halogen, bụ nke a na-ejikarị eme ihe na ogige polyolefin n'ihi ịdị mma gburugburu ebe obibi ha, obere anwụrụ ọkụ, na ntọhapụ gas na-adịghị emebi emebi. Otú ọ dị, imezu ihe a chọrọ na-ere ọkụ na-eme ka ọkụ na-emekarị ka ọ dị mkpa itinye nnukwu ibu nke ATH na MDH-nke bụ 50-70 wt% ma ọ bụ karịa-n'ime matrix polyolefin.

Ọ bụ ezie na ọdịnaya dị elu dị otú ahụ dị elu na-eme ka ire ọkụ na-adịgide adịgide nke ukwuu, ọ na-ewebatakwa ihe ịma aka nhazi siri ike, gụnyere ịba ụba viscosity gbazee, mbelata nrịanrịa, akụrụngwa na-emebi emebi, na ịdị mma elu adịghị mma. Okwu ndị a nwere ike igbochi nrụpụta mmepụta na ịdịmma ngwaahịa.

Edemede a bu n'obi nyochaa n'usoro ihe ịma aka nhazi jikọtara ya na nnukwu ibu ATH/MDH ọkụ na-egbochi polyolefin na ngwa eriri. Dabere na nzaghachi ahịa na ahụmịhe bara uru, ọna-achọpụta dị irènhaziihe mgbakwunyemakana-edozi nsogbu ndị a. Nghọta ndị a na-enye bụ iji nyere ndị na-emepụta waya na eriri aka aka ịkwalite usoro mmepụta ma melite usoro mmepụta mgbe ha na-arụ ọrụ dị elu ATH/MDH ọkụ-retardant polyolefin ogige.

Ịghọta ATH na MDH Flame Retardants

ATH na MDH bụ isi abụọ inorganic, ọkụ ọkụ na-enweghị halogen na-ejikarị eme ihe na ihe polymer, karịsịa na ngwa eriri ebe nchekwa na ụkpụrụ gburugburu ebe obibi dị elu. Ha na-eme ihe site na nbibi nke endothermic na ntọhapụ mmiri, na-eme ka gas na-ere ọkụ na-emepụta ihe nchebe oxide oyi akwa n'elu ihe, nke na-egbochi combustion na ibelata anwụrụ ọkụ. ATH na-emebi emebi na ihe dịka 200-220 Celsius, ebe MDH nwere ọnọdụ okpomọkụ dị elu nke 330-340 Celsius C, na-eme ka MDH dị mma maka polymers na-edozi na okpomọkụ dị elu.

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

1.1. Ire endothermic:

N'elu ikpo ọkụ, ATH (Al (OH) ₃) na MDH (Mg (OH) ₂) na-enweta mmebi nke endothermic, na-etinye nnukwu okpomọkụ ma na-ebelata okpomọkụ polymer iji gbuo oge mmebi okpomọkụ.

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

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

1.2. Ntọhapụ ikuku mmiri:

Uzuzu mmiri a tọhapụrụ na-eme ka ikuku na-ere ọkụ na gburugburu polymer ma gbochie ikuku oxygen, na-egbochi ọkụ ọkụ.

1.3. Nhazi akwa mkpuchi:

Ihe na-esi na ya pụta (Al₂O₃ na MgO) na-ejikọta ya na polymer char oyi akwa na-emepụta oyi akwa nchebe, nke na-egbochi okpomọkụ na ikuku oxygen ma na-egbochi ntọhapụ nke gas na-ere ọkụ.

1.4. Mbelata anwụrụ ọkụ:

Igwe nchekwa ahụ na-emekwa ka ụmụ irighiri ihe na-ese anwụrụ, na-ebelata njupụta anwụrụ ọkụ.

N'agbanyeghị ọmarịcha arụmọrụ ha na-ere ọkụ na uru gburugburu ebe obibi, inweta oke ọkụ na-egbochi ọkụ na-achọkarị 50-70 wt% ma ọ bụ karịa nke ATH/MDH, nke bụ isi ihe kpatara nsogbu nhazi na-esote.
2. Isi ihe ịma aka nhazi nke ATH/MDH Polyolefins dị elu na ngwa USB

2.1. Njirimara rheological mebiri emebi:

Ngwunye ihe mkpuchi dị elu na-abawanye viscosity gbazee ma belata ike ịgbaze. Nke a na-eme ka plasticization na eruba n'oge extrusion siri ike karị, na-achọ ka elu nhazi okpomọkụ na shiee agha, nke na-abawanye ike oriri na accelerates akụrụngwa eyi. Mbelata mgbaze mgbaze na-egbochikwa ọsọ extrusion na nrụpụta mmepụta ihe.

2.2. Ihe eji arụ ọrụ belatara:

Nnukwu ihe nchacha inorganic na-ebelata matriks polymer, na-ebelata ike tensile nke ọma, elongation na nkwụsịtụ, yana ike mmetụta. Dịka ọmụmaatụ, itinye 50% ma ọ bụ karịa ATH/MDH nwere ike ibelata ike nkwụsịtụ site na ihe dịka 40% ma ọ bụ karịa, na-ebute ihe ịma aka maka ihe ndị na-agbanwe agbanwe na nke na-adịgide adịgide.

2.3. Nsogbu mgbasa:

Ụmụ irighiri ATH na MDH na-agbakọtakarị na matrix polymer, na-eduga n'ihe mgbakasị ahụ, mbelata arụmọrụ arụ ọrụ, yana ntụpọ extrusion dị ka ọnya elu ma ọ bụ afụ.

2.4. Ogo elu ala adịghị mma:

Nnukwu gbazee viscosity, mgbasa na-adịghị mma, yana mmachi na-ejuputa-polymer nwere ike ime ka ihe ndị na-emepụta ihe na-eme ka ọ bụrụ ihe siri ike ma ọ bụ na-enweghị isi, na-eduga na "sharkskin" ma ọ bụ na-anwụ anwụ. Mkpokọta na anwụ (die drool) na-emetụta ma ọdịdị na mmepụta na-aga n'ihu.

2.5. Mmetụta akụrụngwa eletrik:

Ọdịnaya ndochi dị elu na mgbasa na-enweghị isi nwere ike imetụta akụrụngwa dielectric, dị ka resistivity olu. Ọzọkwa, ATH / MDH nwere oke iru mmiri dị elu, nke nwere ike imetụta arụmọrụ eletrik na nkwụsi ike ogologo oge na gburugburu iru mmiri.

2.6. Window nhazi dị warara:

Oke nhazi okpomọkụ maka polyolefins na-echekwa ọkụ dị elu dị warara. ATH na-amalite ire ere gburugburu 200 Celsius C, ebe MDH na-emebi gburugburu 330 Celsius. Achọrọ njikwa okpomọkụ nke ọma iji gbochie ire ere na-akaghị aka ma hụ na arụmọrụ na-ere ọkụ na iguzosi ike n'ezi ihe.

Ihe ịma aka ndị a na-eme ka nhazi polyolefins ATH/MDH dị elu dị mgbagwoju anya ma gosipụta mkpa ọ dị mkpa nhazi nhazi ngwa ngwa.

Ya mere, iji dozie nsogbu ndị a, e mepụtala ihe enyemaka nhazi dị iche iche ma tinye ya na ụlọ ọrụ eriri. Ihe enyemaka ndị a na-eme ka ndakọrịta interfacial polymer-filler, belata viscosity gbazee, ma na-akwalite mgbasawanye filler, na-ebuli ma arụmọrụ nhazi yana akụrụngwa ikpeazụ.

Kedu ihe enyemaka nhazi kachasị dị irè maka idozi nhazi na ihe ndị dị n'elu nke nnukwu ibu ATH / MDH ọkụ na-egbochi polyolefin ogige na ngwa ụlọ ọrụ USB?

Ihe mgbakwunye silicon na ihe enyemaka mmepụta:

SILIKE na-enye vasatailihe enyemaka nhazi nke dabeere na polysiloxanemaka ma ọkọlọtọ thermoplastics na injinịa plastik, na-enyere aka ịkwalite nhazi na ịkwalite arụmọrụ nke ngwaahịa emechara. Ngwọta anyị sitere na silicone masterbatch LYSI-401 tụkwasịrị obi ruo ihe mgbakwunye SC920 ọhụrụ - emepụtara iji wepụta arụmọrụ dị ukwuu na ntụkwasị obi na ibu dị elu, LSZH na-enweghị halogen na HFFR LSZH USB extrusion.

Kpọmkwem,SILIKE UHMW ihe mgbakwunye na-edozi mmanu na siliconeegosila na ọ bara uru maka ogige polyolefin na-ere ọkụ ATH / MDH na eriri. Mmetụta gụnyere:

1. Mbelata mgbaze viscosity: Polysiloxanes na-akwaga n'elu gbazee n'oge nhazi, na-eme ihe nkiri na-egbuke egbuke nke na-ebelata esemokwu na ngwá ọrụ ma na-eme ka ọ dịkwuo mma.

2. Mgbasawanye nke ọma: Ihe mgbakwunye ndị dabeere na Silicon na-akwalite nkesa otu nke ATH / MDH na matrix polymer, na-ebelata nchịkọta ihe.

3. Mma elu mma:LYSI-401 silicone masterbatchna-ebelata mwulite anwụ ma gbazee mgbaji, na-emepụta elu extrudate dị nro na obere ntụpọ.

4. Ọsọ ahịrị ọsọ ọsọ:Enyemaka Nhazi silicone SC920adabara elu-ọsọ extrusion nke cables. Ọ nwere ike igbochi nkwụsi ike nke dayameta waya na mwepu, ma melite arụmọrụ mmepụta. N'otu oriri ike ahụ, olu extrusion mụbara site na 10%.

5. Meziwanye ihe eji arụ ọrụ: Site na ịkwalite mgbasawanye filler na adhesion interfacial, silicone masterbatch na-eme ka nguzogide ihe mejupụtara ya na arụmọrụ igwe, dị ka ihe mmetụta & elongation na ezumike.

6. Ịmekọrịta ọkụ na-egbochi ọkụ na nkwụsị anwụrụ ọkụ: ihe mgbakwunye siloxane nwere ike ịkwalite arụmọrụ ọkụ ọkụ (dịka ọmụmaatụ, ịba ụba LOI) ma belata nsị anwụrụ ọkụ.

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

Anyịsilicone nhazi enyemakaA na-etinye ya n'ọtụtụ ebe na thermoplastics na ụlọ ọrụ USB iji kwalite nhazi, melite mgbasawanye filler, belata viscosity gbazee, ma na-ebuga ebe dị nro na arụmọrụ dị elu.

N'ime ha, silicone masterbatch LYSI-401 na ihe enyemaka nhazi silicone SC920 bụ ihe egosipụtara ihe ngwọta maka usoro polyolefin ọkụ na-egbochi ATH/MDH, ọkachasị na LSZH na HFFR extrusion USB. Site na ijikọ ihe mgbakwunye silicone nke SILIKE na ihe enyemaka mmepụta, ndị na-emepụta nwere ike nweta mmepụta kwụsiri ike na ịdị mma na-agbanwe agbanwe.

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.