Polyurethane casters
Polyester prepolymer series
Product consultation: Manager Liu 18553303677
Series introduction:
Polyester prepolymer products have good wear resistance and solvent resistance, strong load-bearing capacity, ultra-high tensile and tear strength, can be added with pigments to adjust the color, can be used to make heavy-duty wheels, electric forklift wheels, rollers, coating rollers, impellers, seals, screen plates, pipe cleaners and some polyurethane elastomer parts.
Technical indicators:
Model |
D3130
|
D3136
|
D3140
|
D3145
|
|
Prepolymer properties |
|||||
NCO Content ( % ) |
3.0±0.2 |
3.6±0.2 |
4.3±0.2 |
4.5±0.2 |
|
25 ℃Appearance |
White solid |
White solid |
White solid |
White solid |
|
Processing technology |
|||||
MOCA Dosage ( g/100g Prepolymer) |
8.6
|
10.5
|
12.5
|
13
|
|
Prepolymer temperature ( ℃ ) |
80
|
80
|
75
|
75
|
|
MOCA Temperature ( ℃ ) |
115-120 |
115-120 |
115-120 |
115-120 |
|
Gel time ( min ) |
12
|
9
|
8
|
7.5
|
|
Post-curing time ( h/100℃ ) |
16
|
16
|
16
|
16
|
|
Hardness (Shore A ) |
GB/T 531.1 |
80±2 |
85±2 |
90±1 |
91±2 |
Model |
D3150
|
D3160
|
|
Prepolymer properties |
|||
NCO Content ( % ) |
5.0±0.2 |
6.0±0.2 |
|
25 ℃Appearance |
White solid |
White solid |
|
Processing technology |
|||
MOCA Dosage ( g/100g Prepolymer) |
14.5 |
17.2
|
|
Prepolymer temperature ( ℃ ) |
80
|
80
|
|
MOCA Temperature ( ℃ ) |
115-120 |
115-120 |
|
Gel time ( min ) |
6
|
5
|
|
Post-curing time ( h/100℃ ) |
16
|
16
|
|
Hardness (Shore A ) |
GB/T 531.1 |
94 ± 2
|
96±2 |
Model |
D3236
|
D3243
|
D3249
|
D3260
|
|
Prepolymer properties |
|||||
NCO Content ( % ) |
3.6±0.2 |
4.3±0.2 |
4.9±0.2 |
6.0±0.2 |
|
25 ℃Appearance |
White solid |
White solid |
White solid |
White solid |
|
Processing technology |
|||||
MOCA Dosage ( g/100g Prepolymer) |
10.6 |
12.5
|
14
|
17.2
|
|
Prepolymer temperature ( ℃ ) |
80
|
80
|
75
|
75
|
|
MOCA Temperature ( ℃ ) |
115-120 |
115-120 |
115-120 |
115-120 |
|
Gel time ( min ) |
4
|
3.5
|
3
|
2
|
|
Post-curing time ( h/100℃ ) |
16
|
16
|
16
|
16
|
|
Hardness (Shore A ) |
GB/T 531.1 |
86±2 |
90±2 |
94±2 |
97±2 ) 47D ) |