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Compounding Processes

The compounding process is very important in the manufacture of WPCs. The performance of a compound has big influence on the properties or productivity of the WPC. So, in this section, not only the technique but also the purpose and some points of attention are included in the discussion of a compounding process. [Pg.203]


Quality Control. Reproducible production of perfumes requires careful quality control of all materials used as well as the compounding process itself. The use of analytical tools has iacreased over the years with their availability, but there can be no substitute for organoleptic evaluation. The human nose is far more sensitive than any analytical instmment for certain materials, yet it is also quite limited as a quantitative tool and is subject to fatigue. There are also weU-documented examples of specific anosmias ia iadividuals, ie, iaability to smell certain odor types, which is somewhat analogous to color-blindness. [Pg.83]

Another common device used in the rubber industry is the thin film evaporator. This device is very often used in the manufacture of ultra-low molecular weight elastomers that are used in sealant applications or specialty coatings, and as processing aids in conventional rubber compounding processes. The thin film evaporator described earlier, has found a multitude of other industry applications, including food processing operations. [Pg.143]

Threshold determinations for metal-containing compounds present a special case. If, for example, you process several different lead compounds, you would base your threshold determination on the total weight of all lead compounds processed. However, If you process both the parent" metal (lead) as well as one or more lead compounds, you must make threshold determinations for both because they are separately listed toxic chemicals. If you exceed thresholds for both the parent metal and compounds of that same metal, EPA allows you to file one combined report (e.g., one report for lead compounds, including lead) because the release Information you will report In connection with metal compounds will be the total pounds of the parent metal released. [Pg.30]

Understand the critical properties of the mixed compound that affect processability. It should be understood that the properties and acceptable operating values of those properties, which control the compound processability, are dependent on the processes under consideration, e.g., hot or cold feed extrusion, compression or injection molding. [Pg.451]

Therefore, if processability is to be measured on a regular basis, it would be extremely useful if a piece of equipment was available that could measure the dynamic properties under realistic operating conditions. Fortunately, one piece of test equipment has been developed, which is commercially available, the RPA 2000 (Monsanto Co.), which may meet the requirements. A considerable number of investigations have been reported on the RPA 2000 [2J, that support the view that it may meet the requirements of an instrument that measures both polymer and compound processability. The work to date identifies differences in polymers and compounds. However, it is important to relate those differences to processing characteristics in the manufacturing environment. [Pg.452]

Stages Basic Chemical Monomers Polymerization Compounding Processing Fabricating Finishing... [Pg.336]

Reports of on-line SFE-FIPLC are rare, perhaps because the majority of analytes that have been extracted using SFE can be separated using either GC or SFC. On-line SFE-HPLC is often used to monitor extraction efficiencies. SFE-HPLC optimised for temperature (120 °C), pressure (384 bar), SCF flow and modifier (methanol) has been used for the quantification of Irganox 1010 and Irgafos 168 extracted from PP. In this case Thilen and Shishoo [12] varied three SFE parameters for optimisation of the extraction efficiency, and five parameters for the collection efficiency, see Figures 7.7 and 7.8. Despite these efforts, low recoveries were observed (Table 7.16). This was attributed to problems associated with the compounding process, and not to uncertainties in the extraction and analytical method. [Pg.446]

In this method the PCM is mixed with expanded graphite in a compounding process. The result is a compound in granular form (Figure 123). [Pg.277]

What type of feeding system is required to incorporate a low viscosity fluid into a high molecular weight polymer What issues might arise during the compounding process due to the form of the additive ... [Pg.241]

Grades of magnesium silicate are available which have been treated with zinc stearate or silanes to improve compound processability for extrusion and calendering. [Pg.147]

A variety of compound processing units are available which automatically treat, dry and often stack the compound into pallets for storage. These machines can be of the type which handle individual sheets of rubber compound, or can pass a continuous sheet, or strips through the system and then wig-wag it into the storage units. [Pg.172]

Report 78 PVC - Compounds, Processing and Applications, J.Leadbitter, J.A. Day, J.L. Ryan, Hydro Polymers Ltd. [Pg.128]

The addition rate of the Dessicante masterbatch is typically 1.0-3.0%. Approximately 1 % addition of the PE 48/10/96 masterbatch will remove 0.1 % of water from the polymer during the extrusion or compounding process. [Pg.524]

Organization and personnel describe that in the dispensing of all prescriptions, the pharmacist has the responsibility and authority to inspect and approve or reject all components, drug product containers, closures, in-process materials, and labeling. It also has the authority to prepare and review all compounding records to assure that no errors have occurred in the compounding process. The pharmacist is also responsible for fhe proper maintenance, cleanliness, and use of all equipmenf used in prescription compmmding practice. [Pg.396]

Figure 5.35 Measured additive level as a function of sample number for a simple compounding process. The samples were taken every 15 minutes. As indicated by the figure, most samples were in control, but occasional samples were far out of specification... Figure 5.35 Measured additive level as a function of sample number for a simple compounding process. The samples were taken every 15 minutes. As indicated by the figure, most samples were in control, but occasional samples were far out of specification...
Many compounding processes are configured with a twin-rotor mixer or twin-screw extruder to perform the compounding followed by a single-screw extruder to pressurize the material for pelletization. A typical process is shown in Fig. 13.8. In... [Pg.603]

Figure 13.8 Schematic for a compounding process with a single-screw pumping extruder... Figure 13.8 Schematic for a compounding process with a single-screw pumping extruder...
Figure 15.1 Schematic of a compounding process using a continuous mixer as the... Figure 15.1 Schematic of a compounding process using a continuous mixer as the...

See other pages where Compounding Processes is mentioned: [Pg.204]    [Pg.348]    [Pg.82]    [Pg.453]    [Pg.203]    [Pg.132]    [Pg.404]    [Pg.832]    [Pg.838]    [Pg.842]    [Pg.843]    [Pg.844]    [Pg.846]    [Pg.151]    [Pg.3]    [Pg.169]    [Pg.179]    [Pg.186]    [Pg.224]    [Pg.281]    [Pg.253]    [Pg.343]    [Pg.548]    [Pg.398]    [Pg.398]    [Pg.332]    [Pg.333]    [Pg.374]    [Pg.500]    [Pg.524]    [Pg.658]    [Pg.658]   
See also in sourсe #XX -- [ Pg.208 ]




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Adulteration process synthetic compounds

Blends compounding and processing

Bulk molding compound, processing

Charge separation processes in porphyrin-quinone compounds with several flexible bridges

Compound A substance with constant composition that can be broken down into elements by chemical processes

Compound Poisson process

Compound Preparation, Mixture Characterisation and Process Enhancement of Particulate-Filled Polymer Compounds

Compound library management process

Compound processing

Compound processing

Compounding and Processing

Compounding and Processing Technology

Compounding process additives/components

Compounding process basic principles

Compounding process colorants

Compounding process conditions

Compounding process issues

Compounding process metallic pigment processing

Compounding process plastics

Compounding process quality control

Compounding process tasks

Concentrate processing color compounding

Concentrate processing compounding equipment

Coordination compounds catalytic processes

Coordination compounds energy transfer process involving

Deprotonation process compounds

Electrochemical Processes Chemical Compounds

Energetic processes compounds

Enolate compounds processes

Enolate compounds processes, lactone synthesis

Enzymatic processing of bioactive compounds

EtMgBr-iodoalkane-mediated Coupling of Arylmagnesium Compounds with Tetrahydrofuran via a Radical Process

Fermentation process mineral compounds

Fruit processing compound contents

Haber-Bosch process compound

Halogenated Compounds, Photochemical Processes in (Majer and Simons)

Halogenated Compounds, Photochemical Processes in (Major and Simons)

Ingredients, rubber compounding processing oils

Lead compounds Processing

Ligand exchange processes carbonyl compound

Manufacturing, tire compound processing

Membrane processes bioactive compounds from

Metallic pigments compounding process

Mixing and Processing of Compounds from Fluorocarbon Elastomers

Mixing and processing of compounds

Molding compound processing

Moulding compounds processing properties

New Processes for Existing Active Compounds

Nitrogen compounds, processing

Nucleophilic substitution process nitrogen compounds

Organic compounds sorption processes

Polymer Compounding 4 Process Requirements

Polymer-compounding, process

Polynuclear compounds oxidation processes

Polynuclear compounds reduction processes

Process development compounds

Process for Producing Aziridine Compounds

Process of Producing Cyclopropanecarboxylate Compounds

Process of compounding

Process, continuous compounds

Processes for Manufacturing Compound Fertilizers

Processes of charge separation in porphyrin-quinone compounds with a rigid bridge

Processes of charge separation in porphyrin-quinone compounds with flexible bonding

Processing aid in compounded

Processing sheet molding compounds

Processing solution compounds

Processing, thermosets bulk molding compounds

Reactive Polymer Processing and Compounding

Rubber Compounding and Processing Technology

Rubber compounding processing oils

Rubber compounds processing operation complexity

Sheet molding compound processing machine

Sheet-molding compound process

Silica compounds extrusion process

Silica compounds mixing process

Silica compounds physical processes

Silver compounds diffusion transfer process

Skill 12.1o-Recognize that inorganic and organic compounds (e.g., water, salt, carbohydrates, lipids, proteins, nucleic acids) are essential to processes within living systems

Stability in Solution and Forced Degradation Studies (Process Intermediate Compound A)

Sulfur-containing compounds anodic processes

Supercritical Fluid Assisted Processing of Filled Compounds

Supramolecular Host Recognition Processes with Biological Compounds, Organometallic Pharmaceuticals, and Alkali-metal Ions as Guests

Thermal processing color compounding

Volatile organic compounds removal processes

Wood compounding process

ZACA-Pd-Catalyzed Cross-Coupling Sequential Processes for the Synthesis of Deoxypolypropionates and Related Compounds

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