Soo koobid:Wax-beddele PVC leh oo leh qaab-dhismeedka qolofka xudunta u ah--ACR, wax-beddelahani wuxuu leeyahay saameyn wanaagsan oo lagu hagaajinayo caagagga iyo saameynta saameynta PVC-ga.
Erayada FurahaBalaastiigga, xoogga saamaynta, wax ka beddelka PVC
By:Wei Xiaodong, Shandong Jinchangshu Teknolojiyadda Qalabka Cusub Co., Ltd., Weifang, Shandong
1. Hordhac
Qalabka dhismaha kiimikada waa nooca afaraad ee cusub ee qalabka dhismaha ee casriga ah ka dib birta, alwaax iyo sibidhka, oo ay ku jiraan tuubooyinka caagga ah, albaabbada caagga ah iyo daaqadaha, dhismaha alaabta aan biyuhu karin, alaabta qurxinta, iwm. Qalabka ugu muhiimsan waa polyvinyl chloride (PVC).
PVC waxaa inta badan loo isticmaalaa sida wax dhismaha iyo profiles caag ah ayaa si ballaaran loo isticmaalaa in gudaha iyo dibadda albaabbada iyo daaqadaha dhismayaasha iyo warshadaha qurxinta, oo leh sifooyin aad u fiican sida ilaalinta kulaylka, shaabadeynta, badbaadinta tamarta, dahaarka dhawaaqa iyo kharashka dhexdhexaadka ah, iwm Tan iyo markii ay hordhaca ah, alaabta ayaa si degdeg ah loo horumariyo.
Si kastaba ha ahaatee, profile-yada PVC waxay sidoo kale leeyihiin qaar faa'iido darrooyin ah, sida heerkulka hooseeya, xoogga saameynta hoose, iyo dhibaatooyinka habaynta.Sidaa darteed, guryaha saamaynta iyo caagagga guryaha ee PVC waa in la hagaajiyo.Ku darista beddelayaasha PVC waxay si wax ku ool ah u wanaajin kartaa adkaanteeda, laakiin beddelayaashu waa inay lahaadaan sifooyinka soo socda: heerkulka kala-guurka dhalada hoose;qayb ahaan la jaan qaada xabagta PVC;u dhigma viscosity ee PVC;wax saameyn ah oo muhiim ah kuma laha sifooyinka muuqda iyo farsamada ee PVC;guryaha wanaagsan ee cimilada iyo balaarinta caaryada wanaagsan.
Wax ka beddelka saamaynta PVC ee sida caadiga ah loo isticmaalo waa chlorinated polyethylene (CPE), polyacrylates (ACR), methyl methacrylate-butadiene-styrene terpolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS), ethylene iyo vinyl acetate copolymer (EVAlene rubberthylene) (EPR), iwm.
Shirkadeena waxay soo saartay oo soo saartay qaab dhismeedka qolof-core PVC modifier JCS-817.Wax ka beddelkaani wuxuu saameyn wanaagsan ku leeyahay hagaajinta caagagga iyo saameynta saameynta PVC.
2 Qiyaasta lagu taliyay
Qadarka wax ka beddelka JCS-817 waa 6% 100kii qaybood ee miisaanka PVC.
3 Isbarbardhigga tijaabada waxqabadka ee u dhexeeya beddelayaasha kala duwan iyo beddeliyahan JCS-817
1. U diyaari walxaha saldhiga tijaabada PVC si waafaqsan qaacidada shaxda 1
Shaxda 1
| Magaca | Qaybaha miisaanka |
| 4201 | 7 |
| 660 | 2 |
| PV218 | 3 |
| AC-6A | 3 |
| Titanium Dioxide | 40 |
| PVC (S-1000) | 1000 |
| Xasijiye Tin-daaqad ah | 20 |
| Calcium Carbonate | 50 |
2. Tijaabi isbarbardhigga xoogga saameynta: Isku-dar qaababka kor ku xusan oo ku qas xarunta 6% ee miisaanka PVC oo leh wax-beddelayaal kala duwan oo PVC ah.
Qalabka farsamada waxaa lagu cabiray mishiinka furan ee laba-lullale, vulcanizer fidsan, samaynta muunad samaynta, iyo mishiinka tijaabada caalamiga ah iyo tijaabiyaha saamaynta iftiinka iftiinka fudud sida ku cad shaxda 2.
Shaxda 2
| Shayga | Habka tijaabada | Xaaladaha tijaabada ah | Unug | Tilmaamaha farsamada (JCS-817 6phr) | Tilmaamaha farsamada (CPE 6phr) | Tilmaamaha farsamada (tusaale isbarbardhigga ACR 6phr) |
| Saamaynta (23℃) | GB/T 1043 | 1A | KJ/mm2 | 9.6 | 8.4 | 9.0 |
| Saamaynta (-20℃) | GB/T 1043 | 1A | KJ/mm2 | 3.4 | 3.0 | Midna |
Laga soo bilaabo xogta ku jirta Jadwalka 2, waxaa lagu soo gabagabeyn karaa in saameynta saameynta JCS-817 ee PVC ay ka fiican tahay kan CPE iyo ACR
3. Tijaabi isbarbardhigga sifooyinka rheological: Isku-dar hababka kor ku xusan oo ku dar 3% miisaanka PVC ee xarunta leh qalabyo kala duwan oo PVC ah ka dibna isku dar.
Sifooyinka balaastiga ah ee lagu cabiray rheometer-ka Harper waxa lagu muujiyay shaxda 3.
Shaxda 3
| Maya | Waqtiga caagagga (S) | Wareegga dheelitirka (M[Nm]) | Xawaaraha wareega (rpm) | Tijaabi heerkulka (℃) |
| JCS-817 | 55 | 15.2 | 40 | 185 |
| CPE | 70 | 10.3 | 40 | 185 |
| ACR | 80 | 19.5 | 40 | 185 |
Laga soo bilaabo Shaxda 2, wakhtiga balaastigga ah ee JCS-817 ee PVC waa ka yar yahay CPE iyo ACR, ie, JCS-817 waxay keeni doontaa in xaaladaha processing hoose ee PVC.
4 Gabagabo
Awoodda saamaynta iyo hantida balaastigga ah ee alaabtan JCS-817 ee PVC waxay ka fiican tahay CPE iyo ACR ka dib xaqiijinta tijaabada.
Waqtiga boostada: Juun-15-2022