PVC Processing Aids

Impact modifier

Impact modifier

Type:Impact modifier

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  • Description
  • Parameter
■Product Descriptions:
 Acrylic impact modifier zz-40 developed by our company is an acrylic copolymer with a core-shell structure, it is mainly used to improve the impact-strength and weather ability of PVC finished products with Hi-impact needs. it is recommended for applications such as PVC profile, PVC fencing and PVC siding etc. where good outdoor weathering and low-temperature impact resistance are critical properties.
zz-40 is our newest generation impact modifier, compared with other general impact modifier, our zz-40 has more better impact performance owing to higher rubber content.
■Technical standards of pure ZZ-40:
Item Unit Technical standards Executive standards
Appearance --- White free-flow powder ---
Volatile content % ≤1.50 GB/T2914
Bulk density g/cm3 0.50-0.60 GB/T1636
Sieve residue(30 mesh) % ≤2.00 GB/T2916
Foreign particle Cm2(10X10) ≤20.00 GB/T9348
Remarks foreign particle
■Typical mechanical properties based on below basic formulation A:
Item Unit Technical standards Executive standards
Izod Impact stength(23℃ condition) Kj/m2 ≥15.0 GB/T1843
Izod impact strength(-10℃ condition) Kj/m2 ≥15.0 GB/T1843
Tensile yield strength Mpa ≥40.0 GB/T1843
Elongation rate at break % ≥100.0 GB/T1040
Izod impact strength(aged for 3000h) Kj/m2 ≥12.0 GB/T1843
Fusion time 160-190 ---
*Basic formulation A
Pvc formulations Conditions for samples preparation
Ingredients  Phr Opening double roll mixer Compression molder
PVC(s-1000) 100
ZZ-40 7
Temp:185℃
Lubricating Processing Aid
Product Descriptions:
 Lubricating processing aid DL-101 developed by our company is an acrylic polymer that functions as both an external lubricant and a processing aid in Vinyl. Its acrylic composition enables lubricating processing aid to provide external lubrication without imparting the incompatibility often found in Vinyl compounds containing conventional lubricants. Owing to its excellent metal release properties,it can effectively avoid adhesion between PVC melt and metal inner surface so as to avoid hot metal surface sticking and improve surface glossiness of PVC finished products.
Typical physical properties:

Item Unit Acrylic Processing Aid(types)
ZZ-91 K-165
Appearance -- White powder White powder
Volatile content %≤ ≤1.5 1.2
Bulk density g/cm3 0.35-0.55 0.44
Sieve residue(40 mesh) % ≤2.0 ≤2.0
Intrinsic viscosity η 0.5-1.5 1.0
Fusion time S 42.0 43.0
Lowest torque Nm 15.6 15.4
Highest torque Nm 27.3 27.8
Balance torque Nm 18.7 19.1
Remarks basic formulations and test conditions for the above results
Remarks:                 
Basic formulations Test conditions
Ingredients Phr White powder Compression molding
PVC(s-1000) 100 temperature 185℃ pressure 150kg/cm2
Calcium carbonate 5.0 Speed ratio 1:1.15 temperature 180℃
ZZ-91/K-165 1.5 Gap of twin roll 0.3mm Pre-heated 3Min.
PE Wax 0.5 Time 0.3Min Dwell 0.3Min
Stearic acid 0.8        
Tio2 4.0        
Tin stabilizer 1.2        
Remarks  
■Product’s advantages:
1.superior metal release and no plateout
2. low dust and good fluidity
3.lower dosage,higher efficiency and reducing out of grade products
4.largely improve surface-glossiness of PVC finished products
http://www.donglinchem.com/Public/userfiles/images/2-3(1).png
■Hot metal release
The ZZ-91 has excellent metal release,it can prevent hot roll sticking,without it, sticking begins after six minutes, and complete sticking occurs after eleven minutes:
Item Without ZZ-91 ZZ-91  0.5phr ZZ-91  1.0phr
  Sricking time(min) Sricking time(min) Sricking time(min)
Beginning 6 None None
Complete 11    
■Packaging and storage:
25kg/bag with PP valve bag and PE inner bag or 500kg/sack.
It should be stored in cool and dry surroundings with shelf life of two years,it can be used if qualified by inspection after shelf life.
Applications:
zz-91 is recommended for all PVC applications such as PVC window profile ,PVC door,PVC fencing,PVC clear film, PVC clear sheet, PVC bottle,PVC foam board etc.
Recommended using dosage:1.0-2.5kg per 100kg PVC resin.
Speed ratio:1:1.15
Gap of twin roll:0.33mm
Time :5min
Pressure :150kg/cm2
Temp:180℃
Preheated :3min
Dwell :3min
Tin stabilizer 2
Caco3(PCC) 5
External lubricant zz-64 0.6
Internal lubricant  zz-50 0.5
Titanium dioxide  4
■ZZ-40 Comparison data of fusion/Mechanical properties:
Item                      Samples
ZZ-40 FM-21 KM-355 IM-808A
Fusion (s) 168 160 174 178
Highest torque(Nm) 36.0 35.6 35.8 35
Constant torque(Nm) 23.5 23.5 23.6 23.4
Temp@constant torque ℃ 185 184 185 183
Izod Impact stength(23℃ condition) 18.6 17.4 18.1 18.9
Izod impact strength(-10℃ condition) 11.3 11.0 11.2 11.5
Tensile strength 397 393 404 409
Elongation rate at break 176 160 172 177
Remarks  Basic formulation:
PVC(s-1000)100phr;Tin stabilizer 2phr;Acrylic impact modifier7phr;Caco3  8phr;Int. lubricant ZZ-50 0.5phr;ext lubricant 0.6phr.
■Product’s advantages:
1.uniform particle size and low dust.
2.Excellent compatibility with PVC resin
3. Excellent long-term weather-resistance
4. better dimensional stability and thermal stability
5. higher impact-resistance.
6.Execellent dispersity and no caking
■Packaging and Storage:
25kg/bag with PP bag and PE inner bag or 550kg/sack PP bag with PE liner
It should be stored in cool and dry surroundings with shelf life of two years,it can be used if qualified by inspection after shelf life.
■Applications:
ZZ-40  is recommended for applications such as PVC window profile ,PVC door and fencing etc.where good outdoor weathering and low-temperature impact resistance are critical.
Recommended using dosage:4.0-6.0kg per 100kg PVC resin.