Acrylonitrile-butadiene-styrene copolymer (ABS) nwere ezigbo ọkụ eletrik, nguzogide oyi, nguzogide mmanụ, nkwụsi ike kemịkalụ, na mmetụta mmetụta, a na-ejikwa ya n'ọhịa nke electromechanics, ngwa ụlọ na njem.Otú ọ dị, ikuku oxygen nke ABS bụ nanị 18%, ọ pụkwara ịnọgide na-ere ọkụ mgbe ọkụ ahụ gasịrị, nke na-egbochi ngwaahịa ya n'ọtụtụ ngwa ngwa.Iji nweta ogo retardant nke ọkụ nke ABS ruo UL94 V-0, ọnụọgụ ọkụ ọkụ agbakwunyere na-abụkarị nnukwu.A na-ebelata ihe eji arụ ọrụ nke ihe ahụ, ọnụ ahịa ya dịkwa elu.
Acrylonitrile-butadiene-styrene copolymer (ABS) nwere ezigbo ọkụ eletrik, nguzogide oyi, nguzogide mmanụ, nkwụsi ike kemịkalụ, na mmetụta mmetụta, a na-ejikwa ya n'ọhịa nke electromechanics, ngwa ụlọ na njem.Otú ọ dị, ikuku oxygen nke ABS bụ nanị 18%, ọ pụkwara ịnọgide na-ere ọkụ mgbe ọkụ ahụ gasịrị, nke na-egbochi ngwaahịa ya n'ọtụtụ ngwa ngwa.Iji nweta ogo retardant nke ọkụ nke ABS ruo UL94 V-0, ọnụọgụ ọkụ ọkụ agbakwunyere na-abụkarị nnukwu.A na-ebelata ihe eji arụ ọrụ nke ihe ahụ, ọnụ ahịa ya dịkwa elu.
Polytetrafluoroethylene (PTFE) nwere mmetụta dị mma na-egbochi ịdaba ma ejiri ya mee ihe na PC / ABS na-ere ọkụ na ihe ndị ọzọ, mana enwere akụkọ nyocha ole na ole na PTFE na ọkụ retardant ABS.Igwe ọkụ ọkụ ABS na-emekarị na ụlọ ọrụ ahụ, mgbe ọ na-ewebata PTFE, tụlere mmetụta PTFE na arụmọrụ nke ọkụ retardant ABS.
1. Akụkụ nnwale
1.1.Isi akụrụngwa
ABS, brominated triazine, antimony trioxide, PTFE, antioxidants, lubricants, wdg.
1.2.Isi akụrụngwa
Ejima-skru extruder: SHJ-35 ụdị;igwe na-akpụzi injection: ụdị T80;Igwe nlegharị anya eletrọnịkị na-achịkwa kọmpụta: ụdị CM6104;Ngwa ihe ngbanwe okpomọkụ: 303;thermogravimetric (TG) analyzer: 209C ụdị.Ihe nleba anya mmetụta pendulum: Model ZBC-25B;Ngwa agbaze agbaze (MFR): MPXRZ-40A;Ihe nnwale ọkụ kwụ ọtọ na kwụ ọtọ: Model HVR-2.
1.3.Nkwadebe ihe atụ
Akọrọ ABS na 80 ℃ maka 3 ruo 5 awa, wee gwakọta ABS, brominated triazine, antimony trioxide, PTFE, na ndị ọzọ mgbakwunye uniformly, gbazee na ngwakọta site a ejima-ịghasa extruder maka extrusion na granulation.Extrusion okpomọkụ bụ 215-225 ℃, ịghasa ọsọ bụ 360 r / min;Mgbe ahụ, a na-afụ ya ma kpoo ya na 80 ℃ maka awa 2, wee gbanye ya n'ime ọkọlọtọ ọkọlọtọ, okpomọkụ injection bụ 200 ~ 210 ℃.
1.4.Nnwale arụmọrụ
Ịrụ ọkụ ọkụ: nwalere dị ka UL94;arụmọrụ tensile: nwalere dị ka GB/T 1040-1992;ike na-ehulata: nwalere dị ka GB/T 9341-2000;ike mmetụta nke cantilever notch: nwalere dị ka GB/T 1843-1996;MFR: dị ka GB/T 3682-== 2000 ule, okpomọkụ 220 ℃, ibu 220kg;okpomọkụ mgbanwe okpomọkụ: nwale dị ka GB/T 16341-2004;Nyocha TG: ọnụego kpo oku 10. C / min,.Ọnọdụ okpomọkụ dị na 30 ~ 700 ℃, n'okpuru ikuku nitrogen.
2. Nsonaazụ na mkparịta ụka
2.1.Ihe nlele na-enweghị ọkụ retardant na-ere ọkụ kpamkpam mgbe mgbanye nke mbụ gasịrị, mmetụta ọkụ ọkụ adịghịkwa mma.Mgbe a na-agbakwunye ụfọdụ brominated triazine na antimony trioxide flame retardant, a na-eme ka ọkụ ọkụ na-eme ka ọ dịkwuo mma, na ọkwa ọkụ na-eme ka ọkụ na-erute ọkwa UL94V-2, mana oge ọkụ na-adị ogologo, na ọkụ na-eme ka ọkụ na-eme ka ọ dị elu. ezigbo.Mgbakwunye nke PTFE na-ebelata oge ọkụ nke ihe.Mgbe 0.2% PTFE agbakwunyere, ọkwa ọkụ na-ere ọkụ nke ihe na-abawanye site na V-2 ruo V-0.Nke a bụ n'ihi na PTFE nwere ebe mgbaze dị elu (323 ° C), ọ naghị agbazekwa na okpomọkụ nhazi ihe, ma ọ dị mfe iji mepụta netwọk fiber n'okpuru ike na-agwakọta, nke na-ebelata mgbasa ọkụ.
2.2.Mgbe ịgbakwunye ire ọkụ retardant, nottched mmetụta ike nke ihe na-ada nke ọma, ebe ndị ọzọ n'ibu Njirimara na-agbanwe ntakịrị.N'ụzọ dị iche, mgbe ọkụ retardants na PTFE na-agbakwunyere n'otu oge, ike nke ihe onwunwe na-ubé mma tụnyere iji ire ere retardants naanị, na dị ka ọnụ ọgụgụ nke PTFE na-abawanye, notched mmetụta ike nke ihe na-abawanye. nke nwere ike ịbụ The eriri netwọk Ọdịdị guzobere PTFE na ihe onwunwe na-arụ a ume ọrụ ruo n'ókè ụfọdụ.
2.3.Ka ọnụ ọgụgụ PTFE na-abawanye, MFR nke ihe ahụ ji nwayọọ nwayọọ na-ebelata.Mgbe ọnụọgụ PTFE agbakwunyere bụ 0.3%, MFR nke ọkụ retardant ABS na-ebelata site na 23.1g / 10min ruo 14.5g / 10min, na-egosi mmetụta nke PTFE na ihe ndị na-asọpụta nke ihe ahụ.Nke buru ibu bụ n'ihi ịdị adị nke PTFE fiber-akpụ ihe, nke na-egbochi eruba nke ABS molekul.N'ihi nhazi pụrụ iche nke PTFE na-emepụta n'oge nhazi, ihe ndị ahụ na-eme ka ọ na-apụta na ọpụpụ nke mpempe akwụkwọ ahụ, na-eme ka ọkpụkpụ ihe dị arọ na pelletizing nwayọọ nwayọọ.Extrusion nke ihe na-enweghị PTFE bụ ihe nkịtị.
2.4.TG na DTG nyocha nke ihe
Enwere naanị otu ọnụ ọgụgụ kacha elu nke ịdị arọ na-ekpo ọkụ n'ime usoro nkwụsị nke okpomọkụ nke ABS dị ọcha, na ọnụ ọgụgụ abụọ nke okpomọkụ dị arọ na-apụta na usoro nkwụsị ọkụ ọkụ nke ABS.Nke mbụ na-akpata site na ire ere nke ire ere, na ọnụ ọgụgụ nke abụọ na-ebute site na ire ere nke ABS.Na mgbakwunye na PTFE, ọnụ ọgụgụ kacha elu okpomọkụ ọnwụ (427°C) nke ABS bụ 1.8°C dị elu karịa nke ABS dị ọcha (428.8°C), mana ọnụ ọgụgụ kacha elu dị iche iche na-ekpo ọkụ (oke ọnwụ ọkụ) 11.7% / min) bụ naanị ọnụ ọgụgụ dị elu dị iche iche na-ekpo ọkụ ọkụ nke ABS dị ọcha (18.8% / min) bụ 62.2%, nke bụ 7.9% dị ala karịa ọnụ ọgụgụ dị elu dị iche iche na-ekpo ọkụ (12.7% / min) nke nlele 28 na-enweghị PTFE agbakwunyere.Mgbakwunye nke PTFE nwere ike imeziwanye ọkụ na-eme ka ọkụ na-arụ ọrụ nke ihe onwunwe.
Bromotriazine na antimony trioxide bụ ụdị halogen-antimony flame retardants, nke na-abụghị nanị na-agbanwe mmeghachi omume retardant nke gas na-aga n'ihu kama ọ na-agbanwekwa mmeghachi omume nbibi nke okpomọkụ nke akụkụ nke condensed.Ọnụego carbon nke fọdụrụ nke ABS dị ọcha na 700 ℃ bụ 1.2%, a na-agbakwunyekwa ABS na-ere ọkụ na triazine brominated na antimony trioxide.The fọdụrụ carbon ọnụego na 700 ℃ bụ 3.5%.Nhazi nke oyi akwa carbon na-enyekwa aka ịbawanye nguzogide nke ihe.Ịkụnye ọkụ.N'otu oge ahụ, ọnụego carbon nke fọdụrụ na 700 Celsius C na PTFE gbakwunyere bụ 3.6%, na-egosi na PTFE emeghị ka ọ gbasaa carbon.Mgbakwunye PTFE nwere ike ịkwalite nhazi oyi akwa carbon denser na mkpuchi ka mma na ihe mgbochi oxygen, si otú a na-eji halogen-antimony flame retardant mee ihe, mmetụta ọkụ ọkụ na-adị mma karị.
3. Nkwubi okwu
3.1.Mgbakwunye nke PTFE nwere ike ibelata ọnụ ọgụgụ kacha elu nke ọkụ ọkụ nke ABS na-ere ọkụ, na-ebelata oge ọkụ nke ihe ahụ, ma melite ọkwa ọkụ ọkụ nke ihe.
3.2.Mgbakwunye nke PTFE nwere obere mmetụta na akụrụngwa nke ọkụ retardant ABS, na ruo n'ókè ụfọdụ na-eme ka ike nke ihe dịkwuo mma.
3.3.PTFE nwere mmetụta dị ịrịba ama na nhazi arụmọrụ nke ọkụ retardant ABS ihe, na onunu ogwu kwesịrị gbanwee dị ka mkpa n'oge ojiji.
Oge nzipu: Jun-11-2020