Chidule:ADX-600 ndi core-shell acrylic impact modifier resin (AIM) yopangidwa ndi emulsion polymerization ndi kampani yathu.Chogulitsacho chikhoza kukhala ngati chosinthira cha PVC.ADX-600 AIM ingalowe m'malo mwa CPE ndi MBS malinga ndi kufananitsa magawo osiyanasiyana a magwiridwe antchito pakati pa AIM ndi zosintha zina za PVC.Zotsatira za PVC zimawonetsa mawonekedwe abwino amakina, magwiridwe antchito komanso magwiridwe antchito otsika mtengo.
Mawu ofunika:AIM, CPE, MBS, zosintha, makina amakina
Mawu Oyamba
PVC imagwira ntchito ngati pulasitiki yapadziko lonse lapansi yokhala ndi zokolola zambiri komanso kuchuluka kwa ntchito padziko lonse lapansi.Zakhala zikugwiritsidwa ntchito kwambiri pazinthu zomangira, zinthu zamafakitale, mapaipi ogwiritsidwa ntchito tsiku ndi tsiku, zida zosindikizira, ulusi, ndi zina zambiri. PVC ikuwonetsa katundu wabwino kwambiri wogwiritsidwa ntchito m'mafakitale ndi maboma.Komabe, utomoni wa PVC ndi wa zinthu zosaoneka bwino.Gawo lake lagalasi losalekeza silingalepheretse kufalikira kwakukulu kwa ming'alu pansi pa kupsinjika ndipo pamapeto pake kumapanga mipata ndi kupasuka kosweka.Chifukwa chake, zinthu zotere zimawonetsa kukana koyipa.Komabe, kuperewera kumeneku kumatha kugonjetsedwera ndikuwonjezera zosintha muzinthu za PVC panthawi yopanga ndi kuumba.
Zosintha zabwino ziyenera kuwonetsedwa potsatira zinthu zabwino kwambiri:
(1) Kutentha kocheperako kwa vitrification Tg;
(2) Kugwirizana kwa zosintha zokha zokha ndi utomoni wa PVC;
(3) Viscosity yofananira zosintha zamphamvu ndi PVC;
(4) Palibe chodziwikiratu chokhwima zotsatira zoonekeratu katundu ndi thupi ndi makina katundu wa PVC;
(5) A zabwino nyengo kukana ndi kufa kutupa katundu.
Zosintha zodziwika bwino za PVC zolimba zimakhala ndi chlorinated polyethylene (CPE), acrylate (ACR), ethylene-vinyl acetate copolymer (EVA), methyl methacrylate-butadiene-styrene ternary graft copolymer(MBS) ndi acrylonitrile-butadiene-styrene-ABS ).Mwa iwo, chlorinated polyethylene impact modifier yagwiritsidwa ntchito kwambiri ku China ndipo acrylate ikugwiritsidwanso ntchito kwambiri chifukwa cha zabwino zake.Zakhala nkhawa ambiri momwe angapititsire kukana kwamphamvu ndikuthandizira kutulutsa kwapulasitiki.
Chogulitsa chathu cha AIM ADX-600 chingalowe m'malo mwa CPE ndi MBS.Zitha kusintha kwambiri fluidity ndi mapindikidwe matenthedwe a PVC kusungunula motero atsogolere PVC plastication.Zotsatira zake zikuwonetsa mphamvu yayikulu komanso kukana kwanyengo yabwino, kukhazikika komanso kukonza katundu wokhala ndi malo osalala, okongola komanso onyezimira kwambiri.Kenako, tasanthula ACR, CPE ndi MBS m'mbali zotsatirazi.
I. Mechanism of Toughening by PVC Impact Modifiers
Chlorinated polyethylene (CPE) imagwira ntchito ngati mamolekyu amzere omwazika mu matrix a PVC mu mawonekedwe a netiweki.Mfundo yokana kukana ndi kupanga netiweki yotanuka muzinthu za PVC matrix kuti zisawonongeke zakunja.Ukonde woterewu umakonda kupunduka pansi pa mphamvu yamphamvu.Izi zidzayambitsa kumeta ubweya wa kusakanikirana kwapakati pa 30 ° mpaka 45 ° kuchokera kumbali yowongoka, motero kupanga gulu lakumeta ubweya, kutengera mphamvu zambiri zowonongeka, ndikupititsa patsogolo kukhazikika kwa dongosolo losakanikirana.Kusintha kwa kupsinjika kwa zokolola za zinthu pansi pa mphamvu yakunja kukuwonetsedwa muzithunzi zotsatirazi.
ACR ndi MBS ndi amtundu wa "core-shell" copolymer impact modifier.Pakatikati pake imagwira ntchito ngati elastomer yolumikizana pang'ono, yomwe imagwira ntchito yayikulu pakukulitsa kusakhazikika komanso kukana mphamvu.Chigoba chake chimagwira ntchito ngati ma polima apamwamba kwambiri okhala ndi kutentha kwapamwamba kwa vitrification, komwe kumagwira ntchito yayikulu pakuteteza pachimake cha mphira ndikuwongolera kuyanjana ndi PVC.Tinthu tating'ono ting'onoting'ono tomwe timatulutsa timadzi tating'onoting'onoting'onoting'onoting'onoting'onoting'onoting'onoting'ono ta PVC kuti tipange "chilumba cha m'nyanja".Zinthuzo zikakhudzidwa ndi kukhudzidwa kwakunja, tinthu tapirala tokhala ndi modulus otsika timakhala ndi mapindikidwe.Pa nthawi yomweyo, de-bonding ndi patsekeke amapangidwa monga zinthu zimayendetsedwa ndi PVC deformation ndi mkulu modulus.Ngati mabowowo apangika moyandikira mokwanira, kusanjika kwa matrix pakati pa tinthu ta rabala kumatha kutulutsa ndikupangitsa kuti zinthuzo zikhale zolimba.Mfundo yosagwira ntchito ikuwonetsedwa pachithunzi pansipa.
CPE, ACR ndi MBS amawonetsa kukhudzika kosiyana kwa mphamvu zamakina chifukwa cha makina awo olimba.Pakukonza, tinthu tating'onoting'ono ta ACR ndi MBS timagawidwa mu matrix a PVC kudzera mukumeta ubweya, ndikupanga mawonekedwe a "chilumba cha m'nyanja" ndikukulitsa kukhazikika kwa zinthuzo.Ngakhale mphamvu zogwirira ntchito zikuchulukirachulukira, dongosololi silingasokonezedwe mosavuta.Zotsatira zabwino kwambiri zolimbitsa thupi zitha kukwaniritsidwa pomwe CPE modifier ndi PVC zimaphatikizidwa mu network yomwe imakulitsa tinthu tambiri ta PVC.Komabe, mawonekedwe a netiwekiwa amatha kusokonekera mosavuta chifukwa cha kusintha kwamphamvu pakukonza.Choncho, ndi tcheru ku processing mwamphamvu ndi ntchito yopapatiza processing osiyanasiyana.
II.Kuyerekeza Kwazinthu Zosiyanasiyana pakati pa ADX-600 AIM ndi Zosintha Zosiyana za PVC Impact
1. Base Material Testing Formula
| Dzina | Organo-tin Heat Stabilizer (HTM2010) | Calcium Stearate | Titaniyamu dioxide | PE-6A | 312 | Calcium carbonate | PVC-1000 |
| Mlingo/g | 2.0 | 0.7 | 4.0 | 0.6 | 0.2 | 5.0 | 100.0 |
2. Katundu wa Impact
| Zinthu | Mayina Zitsanzo | Miyezo Yoyesera | Mayunitsi | Ndalama Zowonjezera (phr) | |||||
| 3 | 4 | 5 | 6 | 7 | 8 | ||||
| Zotsatira Kuchokera ku Notched Cantilever Beam | ADX-600 | Chithunzi cha ASTM D256 | KJ/m2 | 5.44 | 6.30 | 7.78 | 8.72 | 9.92 | 12.02 |
| ACR Kuchokera Kumayiko Akunja | KJ/m2 | 4.62 | 5.01 | 7.68 | 8.51 | 9.63 | 11.85 | ||
| MBS | KJ/m2 | 5.32 | 5.39 | 7.52 | 8.68 | 9.78 | 11.99 | ||
| CPE | KJ/m2 | 3.54 | 4.25 | 5.39 | 6.32 | 7.01 | 8.52 | ||
| Zotsatira Kuchokera ku Cantilever Beam yopanda Notch | ADX-600 | J/m | 57.03 | 63.87 | 72.79 | 88.23 | 100.09 | 121.32 | |
| ACR Kuchokera Kumayiko Akunja | J/m | 46.31 | 50.65 | 72.55 | 85.87 | 97.92 | 119.25 | ||
| MBS | J/m | 53.01 | 62.07 | 71.09 | 87.84 | 99.86 | 120.89 | ||
| CPE | J/m | 21.08 | 37.21 | 47.59 | 59.24 | 70.32 | 82.21 | ||
3. Katundu Wotambasula / Kupinda (Zowonjezera zonse ndi 6phr)
| Zinthu | Miyezo Yoyesera | Mayunitsi | Zizindikiro Zaukadaulo (ADX-600) | Zizindikiro Zaukadaulo (ACR Kuchokera Kumayiko Akunja) | Zizindikiro Zaukadaulo(MBS) | Zizindikiro Zaukadaulo(CPE) |
| Tensile Elasticity Modulus | Chithunzi cha ASTM D638 | MPa | 2546.38 | 2565.35 | 2500.31 | 2687.21 |
| Tensile Elongation Yield | Chithunzi cha ASTM D638 | % | 28.38 | 27.98 | 26.84 | 17.69 |
| Kulimba kwamakokedwe | Chithunzi cha ASTM D638 | MPa | 43.83 | 43.62 | 40.89 | 49.89 |
| Kupinda Modulus | Chithunzi cha ASTM D790 | MPa | 2561.11 | 2509.30 | 2528.69 | 2678.29 |
| Kupindika Mphamvu | Chithunzi cha ASTM D790 | MPa | 67.39 | 65.03 | 66.20 | 69.27 |
Kusanthula: Malinga ndi zomwe zili pamwambapa pamakina:
① Pansi pa Mlingo womwewo, magwiridwe antchito athu a ADX-600 ndiabwino kuposa a MBS ndi ACR ochokera kumayiko akunja.mankhwala athu akhoza m'malo mwa ndalama zofanana.
② Pansi pa Mlingo womwewo, magwiridwe antchito a ADX-600 ndi apamwamba kwambiri kuposa a CPE.Kutengera ndi mayeso angapo, zatsimikiziridwa kuti 3 Mlingo wa ADX-600 kuphatikiza 3 Mlingo wa CPE ukhoza m'malo mwa kugwiritsa ntchito 9 Mlingo wa CPE.Zomwe zimapangidwira zimawonetsedwa motere.
| Zinthu | Miyezo Yoyesera | Mayunitsi | Zizindikiro Zaukadaulo(ADX-600/3phr+CPE/3phr) | Zizindikiro Zaukadaulo(CPE/9phr) |
| Zotsatira Kuchokera ku Notched Cantilever Beam | Chithunzi cha ASTM D256 | KJ/m2 | 9.92 | 9.86 |
| Zotsatira Kuchokera ku Cantilever Beam yopanda Notch | Chithunzi cha ASTM D256 | J/m | 97.32 | 96.98 |
| Tensile Elasticity Modulus | Chithunzi cha ASTM D638 | MPa | 2250.96 | 2230.14 |
| Tensile Elongation Yield | Chithunzi cha ASTM D638 | % | 101.25 | 100.24 |
| Kulimba kwamakokedwe | Chithunzi cha ASTM D638 | MPa | 34.87 | 34.25 |
| Kupinda Modulus | Chithunzi cha ASTM D790 | MPa | 2203.54 | 2200.01 |
| Kupindika Mphamvu | Chithunzi cha ASTM D790 | MPa | 60.96 | 60.05 |
4.Kukonza Zochita
Chithunzi chomwe chili pansipa chikuwonetsa kupindika kwa rheological.Mzere wofiira: ADX-600 / 3phr + CPE / 3phr;buluu mzere: CPE/9phr
Ma torque awiriwa ndi ofanana, ndipo plastification ya zinthu zomwe zasinthidwa ndi ADX-600 / 3PHr + CPE / 3PHR ndizochepa pang'ono koma zimayendetsedwa molingana ndi chiwerengerocho.Chifukwa chake, pankhani yakukonza, 3 Mlingo wa ADX-600 kuphatikiza 3 Mlingo wa CPE ukhoza m'malo mwa kugwiritsa ntchito Mlingo 9 wa CPE.
III.Mapeto
Kupyolera mu kuyerekeza pakati pa ADX-600 AIM ndi CPE ndi MBS m'makina ndi machitidwe opangira, mfundo yotsatirayi yaperekedwa pa kusanthula kwachindunji kuti 3 Mlingo wa ADX-600 kuphatikiza 3 Mlingo wa CPE ukhoza m'malo mwa kugwiritsa ntchito Mlingo 9 wa CPE. .ADX-600 AIM imawonetsa magwiridwe antchito abwinoko, omwe zotuluka zake zimawonetsa magwiridwe antchito abwinoko komanso magwiridwe antchito okwera mtengo.
ADC-600 AIM ndi ya acrylate copolymer yokhala ndi zipolopolo zapakati.ACR imawonetsa kusamva bwino kwa nyengo, kukhazikika kwa kutentha ndi chiŵerengero cha mitengo yamtengo wapatali kuposa MBS chifukwa yoyamba ilibe mgwirizano wowirikiza.Komanso, ACR amasonyezanso ubwino wa lonse processing osiyanasiyana, mofulumira extrusion liwiro, kulamulira mosavuta, etc. Iwo makamaka ntchito mu zinthu zolimba ndi theka-olimba PVC, makamaka zipangizo zomangira mankhwala ndi mankhwala panja, monga mbiri, mapaipi, zoikamo chitoliro, matabwa, thovu zipangizo, etc. Iwo akutumikira ngati mtundu wa kusintha zosintha ndi waukulu mlingo panopa ndi yaikulu kukula kuthekera m'tsogolo.
Nthawi yotumiza: Jun-20-2022