Silicone foams are lightweight products derived from liquid silicone ingredients that are cast onto a liner and cured in an oven. Low density silicone foams have open cell structure that may allow moisture to pass through the cell structure. Open cell silicone foam can be compressed to collapse the cells offering a water tight seal. In contrast, higher density silicone foam products will have a higher proportion of closed cells compared with medium or low density grades. As with all gaskets, with the proper deflection, a good long term weather seal can be achieved.

What is Silicone Foam?

Silicone foam products are manufactured from platinum cured, liquid silicone rubber. The raw compound is expanded and dispensed on a continuous casting line, then heat cured. The expansion process is controlled to create a range of products having different densities, softness/firmness and cell structures. Silicone foam materials typically have a smooth skin on one or both sides due to the casting process. Open cell silicone foams are widely used for cushioning, dust sealing or light water sealing. Closed cell silicone foam materials are used for outdoor gaskets, wash-down gaskets and resilient cushioning pads. Expanded silicone foam products have a firmness range from Ultra Soft to Extra Firm, allowing engineers to select the best product for their application.

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The term silicone denotes a polymer with the structural formula (RnSiO(4-n)1/2)m where n is between 0 and 3 and m is 2 or more. It contains a repeating silicone oxygen chain having organic groups R, attached to a significant portion of the silicone atom by silicone carbon bonds. In commercial silicones most of the R groups are methyl, longer alkyl, fluoroalky, phenyl, vinyl and a few others. Silicone fluids the Si-O chain is unbanked.

Silicone fluids are generally, dimethyl polysiloxane, methyl hydrogen polysiloxane or silicones consisting of copolymers of dimethyl siloxane with methyl phenyl, methyl-hydrogen, diphenyl, methyl-alkyl and other siloxanes. Linear poly-dimethyl siloxanes or dimethyl polysiloxanes are the most important of all the silicones. These fluids with hexamethyl disiloxane. For relating low viscosity fluids  are manufacured by reacting dimethyl silicone fluids the process is run for several hours at 180oC in glass lined kettles with acid chloride catalysts or at lower temperature with sulphuric acid. Alkaline catalysts are used for the production of high viscosity fluids or gums. Silicone fluids have m.wt. of 2000 to 15000 and viscosities from 10  to  10,000 cps.

Dimethyl silicone fluids are colourless, odorless and nontoxic and are resistant to oxidation and chemicals. They have good lubricating action. They reduce surface tension and have water repellent properties, together with foam inhibition. Inclusion of phenyl groups into the silicone structure increase their thermal and oxidative stability, while lowering the pour point. Thus methyl phenyl silicone fluids have higher viscosity, temperature coefficient and lower pour point and lower flash points than dimethyl silicone fluids of the same viscosity. Fluids with chlorinated phenyl groups attached to silicone, e.g. methyl alkyl fluids where alkyl is octyl to tetradecyl are good lubricants but have higher viscosity temperature coefficients and poorer oxidative stability than methyl fluids.

In general, the dimethyl silicone fluids are soluble in aliphatic and aromatic hydrocarbons and chlorinated hydrocarbons. Lower m. wt. fluids are more soluble than higher fluids. They are insoluble in methanol, ethanol, acetone, ethylene, gylcol, polyglycol ethers, gylcerol cyclohexanol and water. Methyl-phenyl silicones are more soluble than the corresponding dimethyl silicones.

INTRODUCTION
PROPERTIES
SILICONE FLUIDS AND SILICONE EMULSION
TYPES OF SILICONE FLUIDS
USES AND APPLICATIONS
B. I. S.  SPECIFICATION
TYPES OF SILICONE EMULSION
DETAILS OF SILICONE FLUIDS
MARKET SURVEY
INSTALLED CAPACITY, PRODUCTION AND CAPACITY UTILIZATION
OF SILICONE EMULSION
APPARENT CONSUMPTION OF SILICONE EMULSION
ESTIMATED DEMAND
PRESENT MANUFACTURERS/SUPPLIERS OF SILICON EMULSIONS
FORMULATING, HANDLING & USE, FOR SILICONE EMULSION
RAW MATERIALS
FORMULATION OF SILICONE EMULSIONUSING DC-203 SILICONE FLUID
FORMULATION OF SILICONE EMULSION
OTHER FORMULATION OF SILICONE EMULSIONS
FORMULATION OF SILICONE EMULSION(MOULD RELEASE AGENT)
PROCESS FLOW DIAGRAM
PROCESS IN DETAILS
RAW MATERIAL CALCULATION
PACKAGING HANDLING AND REMOVAL METHOD OF SILICONE EMULSION
MATERIAL SAFETY DATA SHEET FOR SILICONE EMULSION
ANALYSIS OF SILICONES
PLANT LAYOUT
PRINCIPLES OF PLANT LAYOUT
PLANT LOCATION FACTORS
EXPLANATION OF TERMS USED IN THE PROJECT REPORT
PROJECT IMPLEMENTATION SCHEDULES
SUPPLIERS OF RAW MATERIALS
SUPPLIERS OF PLANT AND MACHINERY

APPENDIX – A :

1.      COST OF PLANT ECONOMICS
2.      LAND & BUILDING
3.      PLANT AND MACHINERY
4.      FIXED CAPITAL INVESTMENT
5.      RAW MATERIAL
6.      SALARY AND WAGES
7.      UTILITIES AND OVERHEADS
8.      TOTAL WORKING CAPITAL
9.      COST OF PRODUCTION
10.      PROFITABILITY ANALYSIS
11.      BREAK EVEN POINT
12.      RESOURCES OF FINANCE
13.      INTEREST CHART
14.      DEPRECIATION CHART
15.      CASH FLOW STATEMENT
16.      PROJECTED BALANCE SHEET

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The term silicone denotes a polymer with the structural formula (RnSiO(4-n)1/2)m where n is between 0 and 3 and m is 2 or more. It contains a repeaating silicone oxygen chain having organic groups R, attached to a significant portion of the silicone atom by silicone carbon bonds. In commercial silicones most of the R groups are methyl, longer alkyl, fluoroalky, phenyl, vinyl and a few others. Silicone fluids the Si-O chain is unbranched.

•    INTRODUCTION
•    PROPERTIES
•    USES AND APPLICATIONS
•    B. I. S.  SPECIFICATION
•    TYPES OF SILICONE EMULSION
•    MARKET SURVEY
•    PRESENT MANUFACTURERS OF SILICON EMULSIONS
•    RAW MATERIALS
•    SILICONE OIL EMULSION (MOULD RELEASING AGENT)
•    FORMULATION OF SILICONE EMULSION
•    PROCESS OF MANUFACTURE
•    PROCESS FLOW SHEETS
•    PROCESS IN DETAILS
•    PACKAGING HANDLING AND REMOVAL METHOD OF SILICONE EMULSION
•    MATERIAL SAFETY DATA SHEET FOR SILICONE EMULSION
•    SUPPLIERS OF RAW MATERIALS
•    SUPPLIERS OF PLANT AND MACHINERY

APPENDIX – A :

.      COST OF PLANT ECONOMICS
2.      LAND & BUILDING
3.      PLANT AND MACHINERY
4.      FIXED CAPITAL INVESTMENT
5.      RAW MATERIAL
6.      SALARY AND WAGES
7.      UTILITIES AND OVERHEADS
8.      TOTAL WORKING CAPITAL
9.      COST OF PRODUCTION
10.      PROFITABILITY ANALYSIS
11.      BREAK EVEN POINT
12.      RESOURCES OF FINANCE
13.      INTEREST CHART
14.      DEPRECIATION CHART
15.      CASH FLOW STATEMENT

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Project Report Covers:

Introduction
Uses and Applications
Properties
Market Survey with future aspects
Present Manufacturers
B.I.S. Specifications
Manufacturing Process with Formulae
Cost Economics with Profitability Analysis
Capacity
Land & Building Requirements with Rates
List & Details of Plant and Machinery with their Costs
Raw Materials
Details/List and Costs
Power & Water Requirements
Labour/Staff Requirements
Utilities and Overheads
Total Capital Investment
Turnover
Cost of Production
Break Even Point
Profitability
Land Man Ratio
Suppliers of Plant & Machineries and Raw Materials.

The post Anti-Foaming Agent (Silicone Based) for Distillery, Sugar Industry, Paper Plant etc. appeared first on EIRI - eBooks and Project Reports.

Project Report Covers:

Introduction
Uses and Applications
Properties
Market Survey with future aspects
Present Manufacturers
B.I.S. Specifications
Manufacturing Process with Formulae
Cost Economics with Profitability Analysis
Capacity
Land & Building Requirements with Rates
List & Details of Plant and Machinery with their Costs
Raw Materials
Details/List and Costs
Power & Water Requirements
Labour/Staff Requirements
Utilities and Overheads
Total Capital Investment
Turnover
Cost of Production
Break Even Point
Profitability
Land Man Ratio
Suppliers of Plant & Machineries and Raw Materials.

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