Polyester thiab TDI polyurethane prepolymeryog tsim los ntawm reacting polyester polyols nrog TDI, uas ua rau ib tug polymeric khoom nrog isocyanate pawg, muaj zoo abrasion kuj, zoo roj kuj, thiab zoo mechanical khoom.
Daim ntawv thov
Polyester TDI Polyurethane Prepolymer yog ib qho prepolymer ua los ntawm polyester polyol thiab toluene diisocyanate (TDI), dav siv nyob rau hauv ntau yam kev lag luam daim ntaub ntawv vim nws zoo heev mechanical zog, tshuaj tiv thaiv, thiab durability.
Polyester TDI Polyurethane Prepolymer muaj qee daim ntawv thov
Polyester TDI system siv nyob rau hauv kev tsim cov high-performance polyurethane elastomers, uas muaj nyob rau hauv daim ntaub ntawv xws li cov ntsaws ruaj ruaj, gaskets, thiab rollers vim lawv yooj thiab puas kuj.
Polyester TDI prepolymers feem ntau yog siv los ua cov khoom siv hauv cov nplaum nplaum rau kev sib txuas ntau yam ntawm cov substrates, tshwj xeeb tshaj yog nyob rau hauv qhov xav tau ib puag ncig.
polyester TDI prepolymer ua cov khoom siv los tsim cov tawv tawv, tiv thaiv polyurethane txheej, uas yog siv rau hlau, pob zeb, thiab ntoo los tiv thaiv hnav, tshuaj lom neeg, thiab ib puag ncig.
Qhov TDI Polyurethane Prepolymer System no nquag siv rau hauv kev tsim cov molded polyurethane qhov chaw, xws li lub log, bushings, thiab cov khoom siv hauv kev lag luam, uas yuav tsum tau muaj peev xwm ua tau zoo heev thiab muaj kev cuam tshuam.
Qee qhov xwm txheej, Casting PU Prepolymer kuj tuaj yeem siv los tsim cov pob txha los yog hloov tau yooj yim polyurethane foams uas muab rwb thaiv tsev, cushioning, lossis kev txhawb nqa.
khoom
|
TSIS MUAJ. |
1 |
2 |
3 |
4 |
5 |
|
Hom |
Polyester/TDI system |
||||
|
Qauv |
wb 8341 |
wb 8026 |
qw 8315 |
qw 8035 |
qw 8317 |
|
NCO content % |
2.1±0.2 |
2.6±0.2 |
3.0±0.2 |
3.5±0.2 |
5.0±0.2 |
|
Qhov ntsuas kub ntawm 20 degree |
Dawb av |
Dawb av |
Dawb av |
Dawb av |
Dawb av |
|
Hardener |
E300 |
E300 |
E300 |
E300 |
E300 |
|
100g prepolymer curing agent ntau npaum li cas (g) |
4.96 |
6.16 |
7.04 |
8.24 |
11.84 |
|
Prepolymer / curing agent mixing kub (degree) |
85/120 |
85/120 |
85/120 |
80/120 |
80/120 |
|
viscosity ntawm 85 degree (mpa·s) |
3000 |
2600 |
2000 |
1600 |
1100 |
|
Lub sijhawm gel (min) |
11-16 |
11-15 |
10-14 |
8-13 |
4-8 |
|
Tom qab kho lub sijhawm (100 degree / h) |
16 |
16 |
16 |
16 |
16 |
|
Hardness (Shore A) |
68±2 |
73±2 |
78±2 |
85±2 |
92±2 |
|
Tensile zog (mpa) |
42 |
43 |
45 |
46 |
47 |
|
100% modulus kev ntxhov siab (mpa) |
2.5 |
3.5 |
3.7 |
4.1 |
8 |
|
300% modulus kev ntxhov siab (mpa) |
4 |
5.5 |
7 |
8 |
16 |
|
Elongation ntawm tawg (%) |
850 |
720 |
680 |
660 |
500 |
|
Lub kaum sab xis Tear Strength (kN/m) |
50 |
58 |
72 |
80 |
105 |
|
Pants lub zog (kN / m) |
18 |
22 |
32 |
40 |
46 |
|
Rov qab (%) |
43 |
40 |
38 |
35 |
32 |
|
Qhov ceev ntawm 25 degree (g / cm3) |
1.2 |
1.23 |
1.25 |
1.25 |
1.25 |
|
DIN hnav (mm3) |
50 |
48 |
45 |
43 |
45 |
Cia
Khaws rau hauv qhov chaw qhuav thiab txias
Sau nws nrog cov roj nitrogen thiab tom qab ntawd kaw nws txaus, yog tias siv tsis tau rau ib zaug
Thawj pob muaj lub neej txee ntawm 6 lub hlis.
Ntim hauv 210kg lossis 200kg nruas lossis 20kgs
Lub sij hawm xa tuaj: Feem ntau 7-10 hnub ua haujlwm tom qab tau txais qhov tso nyiaj
Lub sij hawm ua piv txwv: Feem ntau yog 2-4hnub xa tawm yog tias muaj Tshuag, txwv tsis pub xav tau txog 7-10 hnub .
Cim npe nrov: polyester tdi polyurethane prepolymer, Tuam Tshoj polyester tdi polyurethane prepolymer manufacturers, lwm tus neeg, Hoobkas
