DE102012107357A1 - Polymer composition, useful in a polymer mixture that is useful for producing a molded part, comprises a polymer, and a surface-modified inorganic filler formed by a surface modification of fillers using a surface modifying agent - Google Patents

Abstract

Polymer composition comprises a polymer, and a surface-modified inorganic filler formed by a surface modification of fillers using a surface modifying agent. The surface-modified filler comprises a carbon skeleton having more than 10 carbon atoms, and a functional group, which is bound to the surface. An independent claim is included for producing the polymer composition, comprising either homogeneously mixing the filler and the surface modification agent under the action of heat and kinetic energy, and then adding to the polymer and mixing, or homogeneously mixing the polymer with the filler and the surface modifying agent under the action of heat and kinetic energy.

Description

The present invention relates to a polymer composition containing a surface-modified filler which is particularly homogeneously distributed.

In addition, the invention also relates to a process for the preparation of the polymer composition and a molded article made from the polymer composition.

Polymer compositions with fillers have been known for a long time.

These fillers may be surface modified to be easier to distribute in a polymeric material.

So are from the DE 198 18 924 Surface-modified fillers are known which can be incorporated in polymer compositions.

By incorporating a filler into a polymer composition, one can set a number of parameters and properties, such as elongation, mechanical stability, fracture behavior, and more. A basic prerequisite for achieving the desired mechanical properties is the most homogeneous possible distribution of the filler in the matrix of the polymer composition.

Achieving the most homogeneous possible distribution of the filler in the matrix of the polymer composition is a fundamental problem with the known polymer compositions with fillers.

It is therefore an object of the present invention to provide a polymer composition which has a filler with which an improved homogeneous distribution in the matrix of the polymer composition can be easily achieved.

Another object of the invention is to provide a method for producing such a polymer composition and a molded article made from the polymer composition.

The solution of the problem succeeds according to claim 1.

The polymer composition according to the invention comprising a polymer and a surface-modified inorganic particulate filler formed by surface modification of a filler with a surface modifier is characterized in that the surface-modified filler comprises a carbon skeleton containing more than ten carbon atoms and a functional group attached to the Surface are bound.

The polymer composition according to the invention comprising a polymer and a surface-modified inorganic particulate filler formed by surface modification of a filler with a surface modifier, characterized in that the surface-modified filler comprises a carbon skeleton containing more than ten carbon atoms and a functional group attached to the Surface bound, solves the task to easily achieve a homogeneous distribution of the filler in the matrix.

The polymer composition of the invention contains a polymer.

The polymer is selected from the group comprising thermoplastics and thermoset materials, the thermoplastics being polyolefins, especially polyethylene or polypropylene, polystyrene, polyvinyl chloride, ethylene-propylene-diene monomer-based polymers, copolymers based on acrylonitrile-styrene And thermoset materials are phenolic resins, epoxy resins, unsaturated polyester resins, alkyd resins, furan group resins, urea group resins, melamine resins, polyurethane resins, and aniline resins in pure form, can be used as copolymers or as mixtures.

The surface-modified inorganic particulate filler is formed from a filler by reaction with a surface modifier.

A suitable filler has an acidic and / or amphoteric group on its surface and is selected from the group comprising silicates, carbonates and metal oxides.

Preferably, the filler is selected from the group of smectite clays, in particular montmorillonites, such as. Hectorites, fluorohectites, hydroxylhectrites, saponites, laponites, and kaolinites, and mixtures thereof. Here are preferred smectites and kaolinites. A filler according to the present invention may contain smectite or kaolin with a cation of the group comprising sodium, potassium, lithium, and calcium, such as e.g. As sodium montmorillonite or sodium kaolinite. The filler according to the present invention may be a smectite containing a cation of the group comprising ammonium, phosphonium, etc. An example of this is montmorillonite with ammonium compounds, such as ammonium chloride. B. Nanomer I44P. Examples of further preferred fillers according to the present invention are minerals with amphoteric or acidic groups, such as. As calcium carbonate, titanium dioxide, aluminum hydroxide and quartz (SiO ₂ ).

The preparation of the surface-modified inorganic, particulate filler is carried out with a surface modifier.

The surface modifier having a functional group is a compound of the formula R _n XH _m , with:
R = carbon skeleton with more than ten carbon atoms
X = O, N or S.
H = hydrogen
n, m = integers, where
n + m + number of the main group of the element X in the periodic table of the chemical elements = 8.

R is selected from, but not limited to, decyl, undecyl, dodecyl, tridecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, 3-ethyloctyl, benzyl derivatives, methylbenzyl derivatives, ethylbenzyl derivatives, derivatives of toluene, derivatives of xylene, nonylphenol , Examples of the compounds of the formula RnXHm include i.a. Dodecanol, hexadecanol, octadecanol, dihexylamine, diheptylamine, dioctylamine, dinonylamine, dodecylamine, didodecylamine, hexadecylamine, dihexadecylamine, octadecylamine, dioctadecylamine, di (2-ethylhexyl) amine, di (2-methoxyethyl) amine, 3- (2-aminoethylamino) propylamine , Oleylamine, tallowalkylamine, dicocoalkylamine and cocoalkylamine, octadecylsulfide, without being limited thereto.

Preference is given to a monofunctional surface modifier, in particular an alcohol, where the alcohol is "hydrophobic", ie does not dissolve or hardly dissolves in water.

In the context of the present invention, very particular preference is given to hexadecanol or octadecanol or a mixture of hexadecanol and octadecanol.

Preference is given to surface modifiers of the formula R _n XH _m having a boiling point at atmospheric pressure greater than 70 ° C., more preferably greater than 100 ° C.

Other elements X besides O, N or S are also possible.

In a modification of the invention, it is also possible, for example, to use halogen compounds of the Z-R type (Z halogen, R carbon skeleton).

Other leaving groups on the surface modifier, such as toluyl groups, modified toluyl groups, etc., can be used to modify the filler.

However, this was not pursued in the context of the present invention, since this corrosive substances arise, which are highly undesirable.

The carbon skeleton has more than ten carbon atoms. These can be arranged in an optionally also branched chain or in an optionally also branched ring system, such as in an octadecane skeleton or a 3-ethyloctyl skeleton or a multi-substituted xylene derivative with a benzene ring on which, for example, two methyl groups and are bound to an ethyl group.

The carbon skeleton with more than ten carbon atoms but according to the present invention may also comprise two possibly also branched carbon chains or ring systems, each individually less than contains ten carbon atoms, but in the sum again more than ten carbon atoms, as is realized, for example, in dinonylamine.

According to the invention, the surface-modified inorganic particulate filler mixes homogeneously with the polymer to form the polymer composition.

Another object of the invention is to provide a method for producing such a polymer composition.

This problem is solved by claim 9.

• – entweder wird zunächst der Füllstoff und das Oberflächenmodifikationsmittel gemischt und unter Einwirkung von Hitze und Bewegungsenergie homogenisiert wird und dann das Polymer zugegeben und homogen eingemischt,
• – oder das Polymer wird mit dem Füllstoff und dem Oberflächenmodifikationsmittel gemischt und unter Einwirkung von Hitze und Bewegungsenergie homogenisiert.

According to the invention, the process for producing the polymer composition is as follows:

• Either the filler and the surface modifier are first mixed and homogenized under the action of heat and kinetic energy and then the polymer is added and homogeneously mixed in,
• - or the polymer is mixed with the filler and the surface modifier and homogenized under the action of heat and kinetic energy.

Two methods can be used to prepare the polymer composition according to the invention:

 1. Preparation of the surface-modified inorganic, particulate filler, subsequent mixing with the polymer

It is possible to first modify the filler with the surface modifier before adding the polymer at a later time.

This requires two process steps, the modification and the subsequent mixing with the polymer.

 2. Preparation of the Surface-Modified Inorganic Particulate Filler in the Polymer Matrix

It is alternatively possible to modify the filler with the surface modifier in the presence of the polymer so that the polymer composition according to the invention can be prepared directly.

This only requires one process step.

The advantage of the present invention is the simplicity of this process.

This reduces costs and energy consumption because the surface modification of the filler occurs during the process of mixing with the polymer in one step.

Orientative tests have shown that the results in the present invention are better when the filler is modified with the surface modifier in the presence of the polymer than in the preparation according to 1 in a two-stage process, wherein the filler is first modified with the surface modifier. before the polymer is added at a later time.

The preparation of the polymer composition according to the invention takes place at elevated temperature using shear energy.

In the reaction of the filler with the surface modifier to form the surface-modified inorganic particulate filler, a cleavage product is formed.

In the case of reacting talc having superficial -OH groups with an alcohol such as hexadecanol, the surface-modified inorganic particulate filler is formed by using elevated temperature and shearing energy to release water.

The water formed can be removed from the composition, which is easily achieved, for example, by applying a vacuum.

Other cleavage products can be removed as well.

By taking appropriate measures to remove the cleavage product, the reaction of the filler with the surface modifier may proceed substantially quantitatively.

It is advantageous in the context of the present invention to add the polymer composition to a polymer and to distribute it homogeneously therein, and thus to prepare a polymer mixture. This has improved properties compared to the polymer.

Finally, the present invention also has the object of specifying a molded article made of the polymer composition according to claim 10.

The polymer composition according to the present invention can be advantageously used to produce molded parts used in the fields of vehicle construction, furniture construction, agricultural technology, medical technology, electrical engineering, building technology, window construction, pipe systems, manholes, supply engineering, and the like. Find application.

For this purpose, the molding contains or consists of the polymer composition and / or the polymer mixture.

Another advantage of the present invention is that the inventive method, the use of typical compatibility aids such. B. maleic anhydride-grafted polypropylene (g-MA-PP), is no longer necessary.

Embodiments of the invention

To clarify the practical implementation of the present invention, the following examples are described, parts being parts by weight. The invention relates to the following examples. The examples are for description only and in no way limit the polymer compositions of the invention.

Raw materials for PP

• A) polyolefin
• A1) Polypropylene 1, obtained from Borealis.
• A2) Polypropylene 2, obtained from Basell.
• A3) Rubber, obtained from DUPONT DOW.
• A4) polypropylene powder 3 (PP powder 3) obtained from Borealis.
• B) Fillers
• B1) talc, obtained from LUZENAC.
• B2) kaolin, obtained from Amberger Kaolinwerke, Hirschau.
• C) other components
• C1) Pigment black, obtained from Schulman.
• C2) UV stabilizer, obtained from BASF SE, Ludwigshafen.
• C3) Processing Aid 1, obtained from AKZO Nobel.
• C4) Processing Aid 2, obtained from AKZO Nobel.
• C5) Alcohol, obtained from Sasol Germany GmbH, Hamburg.

Preparation of polymer compositions

Comparative Experiments 1 to 3 and Inventive Examples 4 and 5

For all examples, the same manufacturing process was used. The polymers, fillers and other components were compounded in a ZE 25-48d extruder from Krauss Maffei Berstorff. The granulated and the powdery raw materials were (depending on the examples) pre-mixed separately and metered by means of gravimetric dosing from Brabender in the main feeder or via a side feeding in the engine cylinder. In the extruder, the above-described reaction of the filler with the surface modifier to form the surface modified inorganic particulate filler was carried out at elevated temperature using shear energy.

The ingredients of the various polymer compositions are shown in Table 1.

The polymer compositions were extruded, cooled and cut into granules.

Subsequently, the formed granules were evaluated for appearance (granule appearance = appearance in Table 2). Good appearance means a homogeneous mixture. Poor appearance means partially homogeneous mixture. Very bad appearance means inhomogeneous mixture.

After cooling, the granules were injection molded in an ordinary device. The final composition is shown in Table 1. After a maturation time of 48 hours, the specimens were examined (Table 4).

The only difference is the composition of the specimens. number 1 2 3 4 5 polypropylene 57 57 57 57 57 polypropylene 11 11 11 11 11 rubber 9.5 9.5 9.5 9.5 9.5 Pigment black 0.5 0.5 0.5 0.5 0.5 PP powder 2.5 2.5 2.5 2.5 2.5 talc 20 16 10 16 16 UV stabilizer 0.25 0.25 0.25 0.25 0.25 Processing aids 1 0.08 0.08 0.08 0.08 0.08 Processing aids 2 0.17 0.17 0.17 0.17 0.17 kaolin 4 10 4 4 alcohol 0.31 0.8 Table 1 Polymer Compositions experiment appearance 1 Cf. Rough, bad 2 Cf. Rough, bad 3 Cf. Rough, bad 4 Smooth, good 5 Smooth, good Table 2 Appearance of the granules

(Granule appearance = appearance according to Table 2). Good appearance means a homogeneous mixture. Poor appearance means that there is only a partially homogeneous mixture.

Approximately 3 g of extruded granules of Examples 1 to 5 were poured into a suitable beaker with 20 ml of acetone. After gentle shaking for 30 minutes or gentle shaking for 2 h, the respective extract was applied by means of a pipette to a glass plate of size 5 cm × 2 cm × 0.2 cm. After drying the glass plate, a common spray paint was applied to this layer and dried at room temperature. The results are summarized in Table 3. experiment Lackerscheinungsbild after 30 min extraction Paint appearance after 2 h extraction 1 Cf. fisheye fisheye 2 Cf. fisheye fisheye 3 Cf. fisheye fisheye 4 No disturbances No disturbances 5 No disturbances No disturbances Table 3 Paint Appearance of the Acetone Extracts of the Granules experiment Elongation upper yield strength (%) Deflection (%) 1 Cf. 5.0 5.0 2 Cf. 5.3 5.0 3 Cf. 5.4 5.1 4 6.4 5.3 5 5.6 5.2 Table 4 Results of mechanical tests on test specimens

The use of the surface-modified filler improves the tensile strength and the extensibility of the examples according to the invention. At the same mineral content, the use of the surface modified filler improves the impact resistance. The use of the surface-modified filler reduces the elasticity, thus acting as a plasticizer.

Extruded granules of Examples 1 to 5 were weighed into aluminum dishes and stored for 100 h at 90 ° C in a convection oven. After cooling to room temperature, the percentage weight loss was determined by weighing. The results are summarized in Table 5. experiment Weight loss in% by 100 1 Cf. 1A 11.87 2 Cf. 1B 11.51 3 Cf. 1C 13.87 4 1D 17.78 5 1E 13.19 Table 5 Weight loss of the granules during drying

The use of the hydrophobic organic compound with a functional group reduces the thermal weight loss despite a significantly higher proportion of migratory organic compounds. The selection of suitable fillers also reduces the thermal weight loss in comparison with the filler talcum.

• – Vielzweckprobekörper gemäß EN ISO 527-2 Typ 1A , bzw identisch mit ISO 3167 Typ A

und

• – Rechteckstäbe 80 mm × 10 mm × 4 mm für die Biegeprüfung und die Ermittlung der Schlageigenschaften.

For the testing of the mechanical properties, the required specimens were injection molded:
These were

• - multipurpose test specimen according to EN ISO 527-2 type 1A , or identical with ISO 3167 type A

and

• - Rectangular bars 80 mm × 10 mm × 4 mm for the bending test and the determination of the impact properties.

The multipurpose specimens were made as a double and the rectangular rod as a quad cavity alternatively via a rotatable sleeve in a tool. The mold cavity was similar, but did not match EN ISO 294-1 ,

To produce the test specimens, the Allrounder 320K 700-250 injection molding machine with a 30 mm diameter screw was used. The compound samples were pre-dried in the oven for 2 hours at 80 ° C prior to processing. The injection mold was tempered by means of a mold heating and cooling device to 20 ° C. The engine cylinder was cooled in the catchment area, the cylinder zones heated to 200/210/220/230 ° C. The open nozzle with 3 mm bore was also heated to 230 ° C. For the multipurpose test specimen and the rectangular rod, the injection molding parameters were electronically stored so that the different compound samples could be manufactured under comparable conditions.

For impact strength according to DIN ISO ISO 179-1 / 1eA The notches were inserted into the rectangular bars on a DIADISK 4200 Precision Cutting Saw.

Before the laboratory tests, the specimens were stored for at least 88 hours in an air-conditioned test laboratory at standard climate 23 ° C / 50% humidity. Only the test bars for the low-temperature impact test were additionally conditioned at least 4 hours before the test.

• • Pendelschlagwerk Typ HIT 5.5
• • Materialprüfmaschine 10 KN Typ 1445.60

The mechanical tests were carried out in the air-conditioned test laboratory on test equipment from Zwick / Röll:

• • Pendulum impact tester type HIT 5.5
• • Material testing machine 10 KN type 1445.60

• • Kraftmessdose 10 KN
• • Zug-E-Modul, Prüfgeschwindigkeit 1 mm/min, mit Präzisionswegaufnehmer, Meslänge 50 mm
• • Streckspannung und Streckdehnung, Prüfgeschwindigkeit 50 mm/min, mit Präzisionswegaufnehmer, Messlänge 50 mm
• • Bruchspannung und Bruchdehnung, Prüfgeschwindigkeit 50 mm/min, Wegmessung über die Traverse
• • Die Versuchsauswertung erfolgt an 5 Proben.

The determination of the tensile properties were according to EN ISO 527-2 carried out:

• • Load cell 10 KN
• • Tensile E modulus, test speed 1 mm / min, with precision displacement transducer, gauge length 50 mm
• • Yield stress and elongation at break, test speed 50 mm / min, with precision displacement transducer, measuring length 50 mm
• • Breaking stress and elongation at break, test speed 50 mm / min, travel measurement via the traverse
• • The test evaluation is carried out on 5 samples.

• • Biege-E-Modul mit Kraftmessdose 1 KN
• • Biegefestigkeit mit Kraftmessdose 10 KN (separate Prüfung)
• • Durchbiegung mittels Präzisionswegaufnehmer
• • Der Prüfaufbau und die Prüfparameter entsprechen denen der für den empfohlenen Rechteckstab 80 mm × 10 mm × 4 mm
• • Die Versuchsauswertung erfolgt an jeweils 5 Proben.

The determination of the bending properties were carried out according to DIN EN ISO 178 carried out:

• • Bend E module with load cell 1 KN
• • Bending strength with load cell 10 KN (separate test)
• • Deflection by means of precision displacement transducer
• • The test setup and test parameters are the same as those for the recommended rectangular rod 80 mm × 10 mm × 4 mm
• • The test evaluation is carried out on 5 samples each.

• • Die Prüfparameter entsprechen denen des empfohlenen Rechteckstab 80 mm × 10 mm × 4 mm
• • Schlagzähigkeit ISO 179-1/1fU (breitseitiger Schlag, ungekerbt)
• • Kerbschlagzähigkeit ISO 179-1/1eA (schmalseitiger Schlag, V-Kerb mit R 0,25 mm im Kerbgrund)
• • Der Tieftemperaturschlagversuch wurde nach Probenkonditionierung bei –20 °C,
• • sofort nach der Entnahme bei NK (23 °C / 50 % Feu chte) durchgeführt
• • Die Versuchsauswertung erfolgt an jeweils 10 Proben.

The determination of the impact properties were according to DIN EN ISO 179-1 carried out:

• • The test parameters correspond to those of the recommended rectangular rod 80 mm × 10 mm × 4 mm
• • impact resistance ISO 179-1 / 1fU (broad-sided strike, unnotched)
• • notched impact strength ISO 179-1 / 1eA (narrow-sided impact, V notch with R 0.25 mm in the notch root)
• The low temperature impact test was after sample conditioning at -20 ° C,
• • carried out immediately after removal at NK (23 ° C / 50% fire)
• • The test evaluation is carried out on 10 samples each.

The present invention will be described with reference to FIGS 1 explained in more detail.

This shows:

1 a schematic representation of the preparation process according to the invention for the polymer composition.

In 1 is shown schematically what the polymer composition of the invention 1 contains and how it is made.

The polymer composition according to the invention 1 comprises a polymer material 4 and a surface-modified filler 2 ' ,

The surface-modified filler 2 ' has a functional group 03.03 and a carbon skeleton 3.2 on. In the polymer composition according to the invention 1 are the polymer 4 and the surface-modified filler 2 ' homogeneously mixed.

The surface-modified filler 2 ' becomes from a filler 2 and a surface modifier 3 produced by the action of heat (delta T) and shear energy (E).

The filler 2 lies in the form of filler particles 2.1 that is a functional surface group 2.2 exhibit.

The functional surface group 2.2 of the filler 2 For example, it may be an -OH group.

The surface modifier 3 has an end group 3.1 on, and a carbon skeleton 3.2 ,

The end group 3.1 is on the carbon skeleton 3.2 in the surface modifier 3 bound.

The end group 3.1 For example, it may be an -OH group.

Under the influence of temperature (delta T) and shear energy (E) becomes the filler 2 with the surface modifier 3 implemented so that the end group 3.1 of the surface modifier 3 with the functional surface group 2.2 of the filler 2 is reacted such that the surface-modified filler 2 ' arises, in the superficial a functional group 03.03 and a carbon skeleton 3.2 are bound.

In addition, a cleavage product is formed 5 which in the present example is water (H ₂ O). The implementation of the filler 2 with the surface modifier 3 under the action of heat and shear energy can in the presence of the polymer 4 or without the polymer 4 is present.

In the first example, in the implementation of the filler 2 with the surface modifier 3 , the surface-modified filler is formed directly 2 ' ,

In the second example, in the presence of a polymer 4 , is used in the reaction of the filler 2 with the surface modifier 3 under the action of heat and shear energy, the polymer composition according to the invention 1 directly produced.

The surface-modified filler 2 ' becomes below with the polymer 4 homogeneously mixed.

Suitable measures can be taken, the cleavage product 5 to remove, thereby reducing the reaction of the filler 2 with the surface modifier 3 essentially quantitatively.

LIST OF REFERENCE NUMBERS

1

polymer composition

2

filler

2.1

filler

2.2

functional surface group of the filler

2 '

surface-modified filler

3

Surface modifier

3.1

end group

3.2

Carbon skeleton

3.3

functional group

4

polymer

5

Abspaltprodukt

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 19818924 [0005]

Cited non-patent literature

• EN ISO 527-2 Type 1A [0065]
• ISO 3167 Type A [0065]
• EN ISO 294-1 [0066]
• DIN ISO ISO 179-1 / 1eA [0068]
• EN ISO 527-2 [0071]
• DIN EN ISO 178 [0072]
• DIN EN ISO 179-1 [0073]
• ISO 179-1 / 1fU [0073]
• ISO 179-1 / 1eA [0073]

Claims (10)

Polymer composition ( 1 ) containing a polymer ( 4 ) and one by surface modification of a filler ( 2 ) with a surface modifier ( 3 ) formed surface-modified inorganic particulate filler ( 2 ' ), characterized in that the surface-modified filler ( 2 ' ) a carbon skeleton ( 3.2 ) containing more than ten carbon atoms and a functional group ( 03.03 ) bound to the surface. Polymer composition ( 1 ), according to claim 1, characterized in that the polymer ( 4 ) is selected from the group comprising thermoplastics and thermoset materials, wherein the thermoplastics polyolefins, in particular polyethylene or polypropylene, polystyrene, polyvinyl chloride, ethylene-propylene-diene-based monomers, copolymers based on acrylonitrile-styrene-butadiene and rubber, vinyl polymers, particularly polyfluorovinylidene and polychlorovinylidene, fluoropolymers, especially polytetrafluoroethylene or polychlorotrifluoroethylene, and the thermoset materials are phenolic resins, epoxy resins, unsaturated polyester resins, alkyd resins, furan group resins, urea group resins, melamine resins, polyurethane resins and aniline resins which are in their pure form , can be used as copolymers or as mixtures. Polymer composition ( 1 ), according to claim 1 or 2, characterized in that the filler ( 2 ) an acidic and / or amphoteric group ( 2.2 ) on its surface and is selected from the group comprising silicates, carbonates and metal oxides. Polymer composition ( 1 ), according to one of the preceding claims, characterized in that the surface modification agent ( 3 ) for the surface modification of the filler ( 2 ) is selected from the group comprising alcohols, amines and sulfides. Polymer composition ( 1 ), according to one of the preceding claims, characterized in that the surface-modified filler ( 2 ' ) to 1 to 20 wt .-%, preferably 1 to 10 wt .-%, most preferably 1 to 3 wt .-% at the surface with the carbon skeleton ( 3.2 ) containing more than ten carbon atoms and the functional group ( 03.03 ) is modified. Polymer composition ( 1 ), according to one of the preceding claims, characterized in that the surface-modified filler ( 2 ' ) to 0.1 to 50 wt .-%, preferably to 0.1 to 30 wt .-%, most preferably to 0.1 to 20 wt .-% in the polymer composition ( 1 ) is included. Polymer mixture containing the polymer composition ( 1 ), according to one of claims 1 to 6. Polymer blend according to claim 7, characterized in that the polymer composition ( 1 ) to 0.1 to 50 wt .-%, preferably 0.1 to 30 wt .-%, most preferably 0.1 to 20 wt .-% is included. Process for the preparation of the polymer composition ( 1 ) according to any one of claims 1 to 6, wherein either first the filler ( 2 ) and the surface modifier ( 3 ) and homogenized under the action of heat and kinetic energy and then the polymer ( 4 ) is added and homogeneously mixed, or the polymer ( 4 ) with the filler ( 2 ) and the surface modifier ( 3 ) and homogenized under the action of heat and kinetic energy. Molded part of the polymer composition ( 1 ) according to one of claims 1 to 6 and / or the polymer mixture according to one of claims 7 or 8.

Images