Filter Pressure Value Test according EN 13900 5

Filter Pressure Value Test according EN 13900 -5 (draft) 1

Filter Pressure Value Test EN 13900 -5 (draft) Instrument: • Poly. Drive 252 Single Screw Extruder • Extruder-Screw • Melt Pump • Pressure Sensors • Filterpackage • Filterdie or • Screen changer 2 • Result: Dispersion of pigments and fillers in masterbatches or polymer melts. Quality of disperion is related to the pressure gain in the filter die during the test

Polydrive Filter Test: Single Screw Measuring Extruder for: : • small scale production • continous QC and fish-eye testing • process & material optimization • R&D processing • incoming and final QC • Filtertest • Option: Pressure feedback loop control 3

Poly. Drive Filter Test: The Poly. Drive extruder comes as a complete ready-to-use setup with: è 1. 5 k. W drive è 19 mm, 25 x. D single screw extruder (Rheomex 252 type) ècontrol and monitoring display èfunnel type hopper è 3: 1 standard metering screw è 1 melt thermocouple ègrease & tools èoptional: pressure feed-back loop 4

Poly. Drive Filter Test: Poly. Drive 252 Speed control via pressure feedback loop 5 Melt pump Filter Die

Meltpump: 6 Principle

Meltpump Technical data: • • • Volume: Speed: Temp. range: max. pressure: Bypass valve: Speed control: • Options: 7 1. 2 cm³/r. 0 - 60 rpm 350 °C 500 bar included by Poly. Lab System or by included control box volumes: 0. 6, 2. 4, 3. 0, 4. 5 cm³/r.

557 -2375 Standard Filter Die • Application: Measurement of the pigment distribution Testing of the purity of polymers 8

Poly. Drive Filter Test: Measurement of the pigment distribution Testing of the purity of polymers Suitable for different filter-dimensions 9

Poly. Drive Filter Test: Screen Changer: Hydraulic operated Easy to handle Many test per day 10

Poly. Drive Filter Test: Swivel Hopper: Fast material change Funnel 1 for purge polymer Funnel 2 for test mixture 11

Filter (screen life) test EN 13900 -5 (draft) Constraints: Single Srcew extruder: D = 19 – 30 mm, L/D = 20 - 30 - Poly. Drive 252 Pressure at end of the extruder : constant at 30 – 60 bar - via pressure feedback loop Melt pump: 50 – 60 ccm/min - Thermo Haake meltpump Defined meltfilter: - filter geometry according to EN 13900 -5 proposal Defined breaker plate geometry (free area of filter): - die geometry according to EN 13900 -5 proposal 12

Filter Test Software ts : determination of basepressure Ps and filling of the hopper with masterbatch mixture t : End of masterbatch mixture and filling of base polymer te : End of pressure measurement and evaluation of maximum pressure Pmax Pressure increase in front of the filterpackage Pmax- Ps Ps Conditioning with base polymer ts 13 Masterbatch Purge with 100 g base polymer t te

Filter Test: Calculation according EN 13900 -5 (draft) FPV (filter pressure value): Filter-Pressure-Value in bar per grams [bar/g] Ps: Starting pressure in bar Pmax: Maximum pressure in bar Mc: Pigment weight in gram 14

Filter Test Software – Evaluation: 15

Filter Test Software Configuration: 16

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TEST Report for EN 13900 -5 (draft) 18

Thermo Haake filter package – type 1 ( 25µ ) d = diameter of wire W w = distance of two wires sievepackage type 1 („PZ 25“), part. no. : 005 -0001 The sievepackage consists of layers: d direction of flow 1. layer : W = 0, 14 mm, d = 0, 042 mm (615/108 mesh) 2. layer : W = 0, 63 mm, d = 0, 40 mm layer 1, 2 19

Thermo Haake filter package – type 2 ( 14µ ) d = diameter of wire W w = distance of two wires sievepackage type 2 („PZ 14“), part. -no. 005 -0002 the sievepackage consists of layers: d 1. layer : W = 0, 13 mm, d = 0, 042 mm (615/128 mesh) direction of flow layer 1, 2 20 2. layer : W = 0, 63 mm, d = 0, 40 mm

Thermo Haake filter package – type 3 d = diameter of wire W W = distance of two wires the sievepackage type 3 consists of three layers: d direction of flow 1. layer : W = 0, 040 mm, d = 0, 071 mm (165/1400 mesh) 2. layer : W = 0, 25 mm, d = 0, 16 mm 3. layer : W = 0, 63 mm, d = 0, 40 mm layer 3, 2, 1 21