Thermoplastic compound/matrix
View Patent ↗Thermoplastic matrix/compound, comprising thermoplastic polymer and silanised, structurally modified, pyrogenically produced silica.
1. Thermoplastic matrix/compound, comprising 40 to 99.9 wt.-% thermoplastic polymer and 0.1 to 60 wt.-% silanised, structurally modified, pyrogenically produced silica having dimethylsilyl and/or monomethylsilyl groups fixed to the silica surface, wherein the structural modification took place with a ball mill or a continuously operating ball mill.
2. The thermoplastic matrix/compound according to claim 1 , wherein the silanised, structurally modified, pyrogenically produced silica is characterized by the following physico-chemical characteristics:
BET surface area m 2 /g:
25-400
Average size of the primary particles nm:
5-50
pH value:
3-10
Carbon content %:
0.1-10
DBP value %:
<200.
3. The thermoplastic matrix/compound according to claim 1 , wherein the silica is present in an amount of 0.1 to 10% by weight.
4. The thermoplastic matrix/compound according to claim 1 , wherein the thermoplastic matrix/compound has an increased E Modulus compared to an identical thermoplastic/matrix containing no silica.
5. The thermoplastic matrix/compound according to claim 1 , wherein the structural modification took place with the ball mill.
6. The thermoplastic matrix/compound according to claim 2 , wherein the structural modification took place with the ball mill.