Khoom piav qhia
Polyether raws li polyurethane prepolymer yog castable polyurethane systems.Polyether raws, TDI txiav, castable prepolymer.
Polyether raws li polyurethane prepolymer yog dav siv nyob rau hauv zus tau tej cov PU phaj, PU bar, sealing nplhaib, PU rollers thiab lwm yam khoom.
Polyether raws li polyurethane prepolymer muaj kev puas tsuaj zoo heev, roj tsis kam, zoo txhua yam khoom, dej tsis kam, tsis kub tsis kam, mildew kuj.
Polyether raws li polyurethane yog cov khoom siv ntau yam pom zoo rau cov ntawv thov kev kub ntxhov nruab nrab mus rau siab. Nws yog lub npe hu rau nws zoo heev hydrolytic stability, fungus kuj, thiab tsawg-kub yooj, uas ua rau nws yog ib tug zoo xaiv rau kev siv nyob rau hauv ntau yam kev siv. Tsis tas li ntawd, polyether raws li polyurethanes muaj kev ruaj ntseg ntev hauv dej sov li 50 degree (122℉) rau lub sijhawm ntev, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv hauv cov ntawv thov uas raug dej muaj kev txhawj xeeb.
Txheej txheem txheej txheem
Prepolymer ntawm 75 ~ 85 degree preheating, tom qab nqus degassing, yaj MOCA zoo homogeneous sib tov, deaeration, pouring, molding, vulcanization molding, stripping, vulcanization.
Cia
Khaws rau hauv qhov chaw txias thiab qhuav thiab siv kom sai li sai tau tom qab qhib;
Yog tias nws tsis tuaj yeem siv rau ib zaug, nws yuav tsum tau ntim nrog nitrogen;
Qhov thib ob qhib yuav tsum tau siv rau defoaming, thiab thawj lub sij hawm cia yog rau lub hlis.
Ntim
20kg lossis 200kg hlau nruas
|
Qauv |
qw 8300 |
wb 8301 |
wb 8302 |
qw 8303 |
wb 8304 |
qw 8305 |
qw 8306 |
|
NCO/% |
4.0±0.2 |
4.5±0.2 |
5.5±0.2 |
6.0±0.2 |
8.0±0.2 |
8.5±0.2 |
3.0±0.1 |
|
Lub xeev ntawm 20 ºC |
Colorless pob tshab kua |
||||||
|
MOCA 100g Prepolymer / g |
11.5 |
13 |
16 |
17.5 |
23 |
24 |
8.6 |
|
Viscosity (85ºC) / mPa·s |
340 |
300 |
250 |
250 |
450 |
400 |
200 |
|
Sib tov kub / ºC (Prepolymer / MOCA) |
80/120 |
80/120 |
80/120 |
80/120 |
75/110 |
75/110 |
85/120 |
|
Lub sijhawm gel / min |
10 |
9.5 |
9 |
6 |
2 |
2 |
9 |
|
Tom qab vulcanization lub sij hawm (100ºC) / h |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
|
Hardness (Shore A) |
78±2 |
82±2 |
88±1 |
92±1 |
- |
- |
70±2 |
|
Hardness (Shore D) |
- |
- |
- |
70±1 |
78±1 |
- |
|
|
100% Modulus / MPa |
4.6 |
5 |
5.5 |
6.2 |
23.2 |
32.5 |
2.1 |
|
300% Modulus / MPa |
8.2 |
9.2 |
13 |
20.8 |
- |
- |
3 |
|
Tensile zog / MPa |
27 |
28 |
32 |
35 |
39 |
42 |
7 |
|
Elongation /% |
550 |
480 |
400 |
350 |
230 |
180 |
600 |
|
Tear zog / (KN / m) |
46 |
55 |
76 |
78 |
123 |
145 |
34 |
|
Rov qab /% |
28 |
24 |
24 |
33 |
40 |
51 |
50 |
|
Qhov ceev (24ºC) / (g / cm3) |
1.11 |
1.12 |
1.14 |
1.14 |
1.18 |
1.18 |
1.08 |
|
Din hnav /mm³ |
148 |
112 |
109 |
141 |
131 |
89 |
163 |
Cim npe nrov: Tuam Tshoj polyether raws li polyurethane prepolymer, Tuam Tshoj polyether raws li polyurethane prepolymer manufacturers, lwm tus, Hoobkas
