Composites of heat-stable thermoplastic polymers and silica reinforcing fibers having diameters of less than 1000 nm are prepared by polycondensation of silicic acid or polysilicic acid in the melt or solution of the thermoplastic under the influence of a high shear gradient. The silicic acids or ...
During hybrid yarn input material thermoplastic pultrusion, input materials are wound into bobbins which are positioned in a creel. The creel is used to hold the bobbins and to regulate their unwinding tension [18]. These yarns are then drawn through a preheater, a heated die, and a cooling ...
Carbon fibre-reinforced polymers (CFRPs) are commonly used in aviation, automotive and renewable energy markets, which are constantly growing. Increasing the production of composite parts leads to increased waste production and a future increase in end-of-life components. To improve the recyclability ...
(DESY/MPIKG, Gunthard Benecke, v. 1.0.0) and OriginPro 8.6 was used for data plotting. WAXS and SAXS measurements were also conducted on fibres drawn from heated SRT powder. About 10 mg SRT were crushed into a powder using liquid N2, placed in 10 ml of deionized water and heated...
The current study therefore focuses on the combination of continuous ductile silk fibres incorporated into high strain to failure thermoplastic matrices. Only very few studies have so far been conducted on this material combination. E.g. in [19] uni-directional silk composites were prepared at 20 ...
Thermoplastic polymers particularly PVC composition, can thermally degrade at temperatures slightly above their melting points. This degradation is especially problematic when the products of the chemical reactions are toxic and corrosive. Such is the case with PVC where the degradation product is ...
Such a variation can also be observed in Figure 6, when the mass ratio between the two thermoplastic polymers changed. This variation can be explained by taking into account an exchange reaction between TPU and TPO, as shown in Scheme 1. Figure 7. Fourier transform infrared (FTIR) spectra ...
Thus, there is a relocation of the fibres into the form-closed head area including fibre reorientation both in thickness direction and in plane direction of the joints head. Thereby, splaying of the roving ends can be observed. In order to analyse the occurring deformation behaviour during the...
(SRPCs), where the polymer matrix is reinforced with highly oriented films, fibres, or particles of the same polymer may be used. However, the use of biodegradable thermoplastics in SRPCs is currently limited to a few polymers, mostly focusing on poly(lactic acid) (PLA). Here, we have ...
1,117,480. Films and fibres of incompatible polymers. W. R. GRACE & GO; 12 Aug., 1965 [14 Aug., 1964], No. 34636/65. Heading B5B. A striated film is obtained by melt extrusion of. a mixture of incompatible thermoplastic polymers (defined as those which do not form homogeneous ...