Abstract:ADX-600 ndeye-core-shell impact-resistant ACR resin inogadzirwa kuburikidza neemulsion polymerization nekambani yedu.Chigadzirwa chacho chinogona kushanda sechigadziriso chePVC.ADX-600 kukanganisa ACR inogona kutsiva CPE neMBS zvichienderana nekuenzaniswa kweakasiyana maparamita ekuita pakati pekuita ACR uye akasiyana PVC maitiro ekugadzirisa.Izvo zvinoguma zvePVC zvigadzirwa zvinoratidzira zvakanakisa zvemakanika zvivakwa, kugadzirisa mashandiro uye kudhura-inoshanda kuita.
Keyword:ACR, CPE, MBS, kukanganisa modifier, michina zvivakwa
Nhanganyaya
PVC inoshanda sepurasitiki yepasirese ine goho rakakura uye yakakura application scope munyika.Rave richishandiswa zvakanyanya muzvinhu zvakaita sezvivakwa, zvigadzirwa zvemaindasitiri, pombi dzinoshandiswa zuva nezuva, zvekuvharisa, fiber, nezvimwewo. PVC inoratidza zvinhu zvakawanda zvakanakisa zvekushandisa kwakakura mumaindasitiri nevagari vehurumende.Nekudaro, PVC resin ndeye brittle zvinhu.Chikamu chayo chegirazi chinoenderera hachigone kudzivirira kuwedzera kwakanyanya kwekutsemuka pasi pekunetseka uye pakupedzisira inoumba mapeji uye kuputika kwakatsemuka.Naizvozvo, rudzi rwakadaro rwezvinhu runoratidza kushomeka kwemaitiro kuramba.Nekudaro, kukanganisa uku kunogona kukurirwa nekuwedzera kwekuchinja kwekuchinja muPVC zvinhu panguva yekugadzira uye kuumba maitiro.
Yakanaka maitiro modifiers anofanirwa kuratidzwa nekutevera akanakisa zvivakwa:
(1) Tembiricha yakaderera vitrification Tg;
(2) Iko kuenderana kwekukanganisa modifier pachayo nePVC resin;
(3) Viscosity inoenderana nemhedzisiro inogadzirisa nePVC;
(4) Hapana chakakanganisika chakakanganisika pane zvinoonekwa zvivakwa uye zvemuviri uye zvemichina zvePVC;
(5) A good weather resistance uye kufa kuzvimba pfuma.
Izvo zvinowanzoitika zvinogadzirisa zvePVC yakaoma zvinonyanya kuvhara chlorinated polyethylene (CPE), acrylate (ACR), ethylene-vinyl acetate copolymer (EVA), methyl methacrylate-butadiene-styrene ternary graft copolymer (MBS) uye acrylonitrile-butadiene-styleABS )Pakati pavo, iyo chlorinated polyethylene impact modifier yakashandiswa zvakanyanya muChina uye acrylate iri kuwedzera kugamuchirwa nekuda kwehunhu hwayo hwakanaka.Yave kunetsekana kwakawanda maitiro ekuvandudza maitiro ekupikisa uye kufambisa iyo extrusion yepurasitiki.
Yedu maitiro ACR chigadzirwa ADX-600 inogona kutsiva CPE uye MBS.Inogona kuvandudza zvakanyanya fluidity uye deformation yekupisa kwePVC kunyunguduka uye nekudaro kufambisa PVC purasitiki.Zvigadzirwa zvinobuda zvinoratidza simba rekuita uye kumira kwakanaka kwemamiriro ekunze, kugadzikana uye kugadzirisa midziyo ine yakatsetseka, yakanaka uye inopenya zvakanyanya.Tevere, takaongorora ACR, CPE uye MBS mune zvinotevera zvinhu.
I. Mechanism of Toughening by PVC Impact Modifiers
Chlorinated polyethylene (CPE) inoshanda semutsara mamorekuru akaparadzirwa muPVC matrix mune network fomu.Iyo musimboti wekukanganisa kuramba ndeyekugadzira iyo elastic network muPVC matrix zvinhu kuti irambe yekunze maitiro.Mambure akadaro anowanzoita deform pasi pesimba rekumanikidza.Izvi zvinokonzeresa kutsvedza kweshear yemusanganiswa pakona ye30 ° kusvika 45 ° kubva kwainotungamira, nekudaro kugadzira bhendi rekugera, kutora huwandu hukuru hwesimba rekuchinja, uye kuwedzera kusimba kwemusanganiswa system.Shanduko mukushushikana kwegoho rezvinhu pasi pesimba rekunze rinoratidzwa munhamba dzinotevera.
ACR neMBS ndeyemhando ye "core-shell" copolymer impact modifier.Musimboti waro unoshanda seyakaderera-yakabatana elastomer, iyo inotamba mabasa makuru mukusimudzira kusimba uye kukanganisa kuramba.Goko rayo rinoshanda seyepamusoro-molecular polymer ine yakakwira vitrification tembiricha, iyo inotamba mabasa makuru mukuchengetedza rubber musimboti nekuvandudza kuenderana nePVC.Rudzi urwu rwekugadziridza zvidimbu zviri nyore kupatsanurwa uye zvinogona kuparadzirwa zvakaenzana muPVC matrix kuitira kuti igadzire "gungwa-chitsuwa" chimiro.Kana izvo zvinhu zviri pasi pemaitiro ekunze, zvimedu zverubha zvine yakaderera modulus zvinowanzoita deformation.Panguva imwecheteyo, de-bonding uye mhango inoumbwa sezvo zvinhu zvinofambiswa nePVC deformation ine yakakwira modulus.Kana iwo maburi akaumbwa ari pedyo zvakakwana, iyo matrix layer iri pakati perubha zvimedu inogona kuburitsa uye kuwedzera kusimba kwechinhu.The impact-resistant musimboti inoratidzwa mumufananidzo pazasi.
CPE, ACR uye MBS inoratidza kunzwisiswa kwakasiyana kune machining simba nekuda kwemaitiro avo akasiyana ekuomesa.Munguva yekugadziriswa, ACR neMBS zvimedu zvinogovaniswa muPVC matrix kuburikidza nekuveura chiito, kugadzira "gungwa-chitsuwa" chimiro uye nekudaro kuwedzera kusimba kwezvinhu.Kunyangwe kana simba rekugadzirisa richiwedzera, chimiro ichi hachizokanganisika nyore.Iyo yakanyanya kuomesera mhedzisiro inogona chete kuzadzikiswa seCPE modhifita uye PVC yakasanganiswa kuita network sisitimu inoputira ekutanga PVC zvimedu.Nekudaro, ichi chimiro chetiweki chinogona kukanganisika zviri nyore nekuda kwekuchinja mukusimba kwekugadzirisa.Nokudaro, inonzwa kune simba rekugadzirisa uye rinoshanda kune rakamanikana rekugadzirisa.
II.Kuenzanisa Kwezvakasiyana Zvivakwa pakati peADX-600 Impact ACR uye Yakasiyana PVC Impact Modifiers.
1. Base Material Testing Formula
| Zita | Organo-tin heat stabilizer (HTM2010) | Calcium stearate | Titanium dioxide | PE-6A | 312 | Calcium carbonate | PVC-1000 |
| Chiyero/g | 2.0 | 0.7 | 4.0 | 0.6 | 0.2 | 5.0 | 100.0 |
2. Impact pfuma
| Items | Mazita emuenzaniso | Testingstandards | Units | Kuwedzera mari (phr) | |||||
| 3 | 4 | 5 | 6 | 7 | 8 | ||||
| Mhedzisiro kubva kunotched cantilever beam | ADX-600 | ASTMD256 | KJ/m2 | 5.44 | 6.30 | 7.78 | 8.72 | 9.92 | 12.02 |
| ACR kubva kune dzimwe nyika | 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 | ||
| Impact kubva notch-isina cantilever beam | ADX-600 | J/m | 57.03 | 63.87 | 72.79 | 88.23 | 100.09 | 121.32 | |
| ACR kubva kune dzimwe nyika | 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. Kutambanudza / kukotama zvivakwa (Yese yekuwedzera mari ndeye 6phr)
| Items | Testing standards | Units | Technical zviratidzo(ADX-600) | Technical zviratidzo (ACR kubva kune dzimwe nyika) | Technical zviratidzo(MBS) | Technical zviratidzo(CPE) |
| Tensile elasticity modulus | ASTM D638 | MPa | 2546.38 | 2565.35 | 2500.31 | 2687.21 |
| Tensile Elongation goho | ASTM D638 | % | 28.38 | 27.98 | 26.84 | 17.69 |
| Kusimba simba | ASTM D638 | MPa | 43.83 | 43.62 | 40.89 | 49.89 |
| Bending modulus | ASTM D790 | MPa | 2561.11 | 2509.30 | 2528.69 | 2678.29 |
| Kupeta simba | ASTM D790 | MPa | 67.39 | 65.03 | 66.20 | 69.27 |
Analysis: Zvinoenderana nedata riri pamusoro pane mechaniki zvivakwa:
① Pasi pemadosi mamwe chete, kuita kwechigadzirwa chedu ADX-600 kuri nani pane kweMBS uye zvigadzirwa zveACR kubva kune dzimwe nyika.Chigadzirwa chedu chinogona kuvatsiva muhuwandu hwakaenzana.
② Pasi pemadhizi akafanana, kuita kwechigadzirwa chedu ADX-600 kwakakwira zvakanyanya kupfuura kweCPE.Zvichienderana nemiyedzo yakawanda, zvakaonekwa kuti 3 dosi reADX-600 pamwe ne3 dosi reCPE rinogona kutsiva kushandiswa kwemakumi mapfumbamwe eCPE.Iyo chaiyo mechanical properties inoratidzwa sezvinotevera.
| Items | Testing standards | Units | Technical zviratidzo(ADX-600/3phr+CPE/3phr) | Technical zviratidzo(CPE/9phr) |
| Mhedzisiro kubva kunotched cantilever beam | ASTM D256 | KJ/m2 | 9.92 | 9.86 |
| Impact kubva notch-isina cantilever beam | ASTM D256 | J/m | 97.32 | 96.98 |
| Tensile elasticity modulus | ASTM D638 | MPa | 2250.96 | 2230.14 |
| Tensile Elongation goho | ASTM D638 | % | 101.25 | 100.24 |
| Kusimba simba | ASTM D638 | MPa | 34.87 | 34.25 |
| Bending modulus | ASTM D790 | MPa | 2203.54 | 2200.01 |
| Kupeta simba | ASTM D790 | MPa | 60.96 | 60.05 |
4.Kugadzirisa Zviito
Mufananidzo uri pazasi unoratidza rheological curve.Mutsara mutsvuku: ADX-600/3phr+CPE/3phr;mutsara webhuruu: CPE/9phr
Balance torques ezviviri zvakangofanana, uye plastification yezvinhu zvakagadziridzwa neADX-600/3PHr +CPE/3PHR inononoka zvishoma asi mukati mekutonga zvinoenderana nenhamba.Nokudaro, maererano nekugadzirisa, 3 doses yeADX-600 pamwe ne3 doses yeCPE inogona kutsiva kushandiswa kwe9 doses yeCPE.
III.Mhedziso
Kuburikidza nekuenzanisa pakati peADX-600 kukanganisa ACR neCPE neMBS mune zvemuchina uye maitiro ekugadzirisa, mhedziso inotevera yakaswededzwa pane chinangwa chekuongorora kuti madosi matatu eADX-600 pamwe ne3 madosi eCPE anogona kutsiva kushandiswa kwemakumi mapfumbamwe emadhora. CPE.ADX-600 kukanganisa ACR inoratidza zvirinani kuita kwakazara, izvo zvinozobuda zvigadzirwa zvinoratidza kuita kuri nani uye kuita kwepamusoro-zvine mari.
ADC-600 kukanganisa ACR ndeye acrylate copolymer ine core-shell chimiro.ACR inotaridza kushingirira kwemamiriro ekunze kuri nani, kugadzikana kwekupisa uye chiyero chemutengo wekuita pane MBS nekuti yekutanga haina kaviri bond.Pamusoro pezvo, ACR inoratidzawo zvakanakira zvehupamhi hwekugadzira dhizaini, kukurumidza extrusion kumhanya, kudzora nyore, etc. Inonyanya kuiswa mune yakaoma uye semi-yakaoma PVC zvigadzirwa, kunyanya zvemakemikari zvekuvaka uye zvigadzirwa zvekunze, senge profiles, mapaipi, pombi fittings, mapuranga, furo zvinhu, etc. Inoshanda semhando yekuchinja inogadzirisa ine dosage yakakura panguva ino uye yakakura kusimudzira kugona mune ramangwana.
Nguva yekutumira: Jun-20-2022