| 摘要 |
The invention relates to stabilized fiber-reinforced thermoplastic molding compounds, to the molded parts, composite materials and laminates produced on the basis thereof and to the use of the molding compounds for producing molded parts, composite materials and laminates. The invention further relates to the use of a stabilizer for adjusting the properties of molding compounds, molded parts, composite materials and laminates with a thermoplastic molding compound that contains, based on the sum of components A to E and optionally F and G that adds up to 100 wt.- %, a) 10 to 96.9 wt.- % of at least one aromatic polyester as component A, b) 1 to 50 wt.- % of at least one particulate graft copolymer with a glass transition temperature of the soft phase below 0 DEG C and average particle size of 50 to 1000 nm as component B, c) 1 to 50 wt.- % of at least one copolymer consisting of the monomers c1) 50 to 90 wt.- % of at least on vinyl-aromatic monomer as component C1 and c2) 10 to 50 wt.- % acrylnitril and/or methacrynitril as component C2, as component C, d) 1 to 50 wt.- % fibers as component D, and e) 0.1 to 2 wt.- % of a stabilizer as component E. Said stabilizer consists of at least one main stabilizer and optionally at least one co-stabilizer, said main stabilizer being a hydrocarbon optionally containing N, O or S or at least two of them as a heteroatom. Said hydrocarbon is bound, via " &tilde& ", with at least one sterically hindered, optionally deprotonated phenol of the general formula (I), wherein R<1> = tertiary butyl, cyclopentyl or cyclohexyl, and R<2> = H, C1 to C10 hydrocarbon, and has a molecular weight in the range of 250 to 2500 g/mol. The co-stabilizer consists of at least one phosphorus with 3 hydrocarbon rests bound thereto, wherein at least one of the rests is bound via an oxygen atom, and has molecular weight in the range of 91 to 1500 g/mol. The inventive thermoplastic material further contains f) 0 to 25 wt.- % of other acceptable polymers that can be mixed with components A and/or C to give a homogeneous mixture or that can be dispersed therein, as component F, g) 0 to 10 wt.- % usual additives such as UV stabilizers, antioxidants, lubricants and mold release agents as component G.
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