Moulded formulation

Fig.4. The relationship between viscosity and shear rate for silicon containing ceramic injection moulding formulations given in Table 1 (at 225 °C). (A) FI (X) F2 ( ) F3 (M) F4 [22]...

Fig.5. The relationship between viscosity and shear rate for zirconia/wax binder injection moulding formulations (at 100 °C). n is the flow behaviour index. Ceramic filler volume fraction (%) ( ) 50 (A) 55 (V) 60 (O) 65 (+) 70 [26]...

PP Flypodermic syringes Injection moulding Formulation- specific Embrittles over time... 

To understand the benefits of these new additive technologies that provide low volatility, no amine emissions, no fogging and, in some cases, cell opening, all TDI moulded formulations were run on the Hi Tech machine. Several foams were produced for each catalyst combination and formulation to obtain physical property pads, FTC pads, shrinkage pads, and flow evaluations. 

Table 1.36 Hiysical jToperties for 46 kg/m MDI moulded formulations at an index of 90 ...

Tables 1.38 and 1.39 provide the physical property comparison for the 55 kg/m MDI flexible moulded formulations XXV-XXXIV. The data clearly demonstrates that physical properties are maintained, and in several cases improved, compared to the control formulations, depending on the formulation. For example, the data in Table 1.38 illustrates that all physical properties are matched to the control formulation (XXV) at an index of 105 with the exception of a slightly lower ball rebound for the full non-fugitive catalyst package. At an index of 105, all physical properties for the experimental non-fugitive catalysts formulations were determined to be similar to the control (XXX). When Dabco NE1060/BL-11 is used as a low emission catalyst package (XXXHI), all physical properties at the index of 105 are comparable to the control foam. At an index of 105 (XXXHI), airflow, elongation and Japanese wet sets and HACS are improved over the control (XXX) and 50% dry compression sets are slightly elevated.

Mould identification - necessary in order to transmit the appropriate mould/formulation information to the dosing system - is achieved with a code reader. The electrical controls... 

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