Global Journal of Researches in Engineering, J: General Engineering, Volume 22 Issue 1

lobal Journal of Researches in Engineering ( ) Volume XxXII Issue I Version I J G 9 Year 2022 © 2022 Global Journals From figure 1, we will say as a reminder that: − All tubes are perfectly round. − The colors go from light grey for F0 to black grey for F51.01 passing through grey and dark grey, confirming the presence of the purple color of the load of the micronized palm nut shell powder and the presence of the carbon black of the extrusion additives. − The surfaces range from smooth shiny for F0 tubes to rough for F51.01 tubes confirming the presence of the micronized palm kernel shell powder in the tubes. − The diameters are exactly 82mm for the internal diameter and 90 for the external diameter confirming the qualities of the dies and the seriousness of the company. ii. Materials for the characterization : Preparation of the specimens: • 01 pestle: in ceramic, delivered with the analysis machine. • 01 mortar: in ceramic, delivered with the analysis machine. • 01 sieve: the sieve is AFNOR grade 100µ. • 01 Digital precision balance of SEDITECH brand and precision at 1/1000th. • 01 Plastics for packaging: transparent nylon plastic. Machine of analysis: The machine used for testing have been described in several works in which the laboratory was requested for thermogravimetric and differential analysis [8, 9, 12, 13]. As a reminder, the analysis machine is a Instrument brand LENSEIS; TGA / HDH Automatic robot, software incorporated into the machine with data acquisition controlled by computer; crucibles aluminum oxide, capacity 150mg; having a wide range of speed of measurement. The combustion gas is oxygen or nitrogen. b) Experimental methods i. Preparation of the specimens We take the tube of a given formulation. We cut out some strips that we make into powder with an ordinary scraper. The powder is poured into the mortar and with the pestle we reduce the powder of the scraper into a very fine powder. We use the 100µ sieve to obtain a sufficient quantity which will be weighed with the balance before conditioning to await the analysis. ii. Thermogravimetric and differential analysis This methodology has been described in several works in which the laboratory has been requested for thermogravimetric and differential analysis [9, 12]. As a reminder : The thermogravimetric and thermodifferential analyses were carried out on a LINSEIS STA PT-1000 C thermal analyser with the type Platinum Evaluation V1.0.182, coupled to a computer and programmed for this purpose. The thermal treatment of the device ranges from room temperature (20-35°C) to 1000°C. The heating rate varies between 1°C and 100°C. The crucible is made of alumina oxide with a capacity of 150 mg and a control crucible of alumina. The mass of the powder to be characterised is Figure 1: Unloaded PVC tubes and PVC tubes loaded with micronized dura palm kernel shell powder. Mathematical Models for the Calculation of the Thermal Properties of PVCs as a Function of Dosage with the Load of Palm Kernel Shell Powder from the Results of Experimental Practice