Detailed Project Report (DPR) on latex based rubber adhesives with process & formulae

LATEX BASED RUBBER ADHESIVES
WITH PROCESS AND FORMULAE

[CODE NO3117]

Latex based adhesives are of special importance for cementing porous surfaces

due to their ability to wet such surfaces. On the other angle the porosity

allows the latex adhesive to dry out thus producing a strong coherent film.

Sodium silicate, glue, albumen gums and starch etc. are compatible with natural

latex and exert a stabilizing action. The latex rubber in the adhesive film

imparts flexibility and strength and protects and bond against dynamic fatigue.

 
Latex based adhesives contain a rubber latex, adhesion modifiers, plasticizers,

curatives, fillers such as whiting and kaolin, thickness e.g. cellulose

derivatives and other additives e.g. antioxidants, surfactants antifoams (Octyl

alcohol, silicons), antifreeze, stabilizers corrosion inhibitor colourants,

deodorants and reodorants etc.


Shoe industry, both or leather and rubber based types, utilities quite a good

amount of adhesives, large number of which are based on animal glues,

now-a-days various thermoplastic materials other than those based on animal

glues are in use, e.g. adhesives based on PVC, polyvinyl butyl, rubber natural

and synthetic, methyl cellulose and celluloid etc. Water resistant casein glues

are also employed for this purpose.

The rubber solution which are manufactured by synthetic rubber are called as

"synthetic rubber adhesives". It is an important item for shoes and rubber

industries in the joining of two layers or more than two rubber layers of shoe

layers or shoe parts and soles. The rubber solutions have some public uses

also, such as, in cycle puncture and heavy vehicle puncture fixing.

Rubber cement is a solution of unvulcanized (gum) rubber in a solvent, and is

used as an adhesive. Ideally, it is meant to join two pieces of rubber

together, which involves a chemical cohesion process. When joining two pieces

of rubber, only one surface has to be coated with rubber cement since they are

the same material. However, when joining paper together, both pieces need to be

covered with rubber cement. When rubber cement dries, only the parts in contact

with the paper remain, which holds the two pieces together. Despite this

limitation, the household type of rubber cement finds wide use for applications

such as mounting photographs. Unlike with white glue, the joined pieces of

paper can be pulled apart without damaging either piece.

Adhesives are made from either natural animal or plant products or synthetic

polymer. Natural adhesives are easy to apply and in general are water soluble.

Synthetic adhesives are divided into four chemical categories: thermoplastic,

thermosetting, elastomeric, and combinations thereof. Thermoplastic adhesives,

such as polyvinyl alcohol and acrylics, can be resoftened since the materials

do not crosslink upon curing. They require heat or a solvent to create a bond.

Thermosetting adhesives, which include epoxies, cannot be heated and resoftened

after curing because they do crosslink upon curing. Elastomeric adhesives are

based on isoprene rubber or synthetic polymers that combine both elasticity and

toughness. Silicone is a typical example.



COST ESTIMATION

Plant  Capacity                             :       400.00 Kgs/day
Land & Building (600 Sq.Mtr)    :    Rs. 51.00 Lacs
Plant & Machinery                        :    Rs. 15.00 Lacs
Working Capital for 1 Month     :    Rs. 14.47 Lacs
Total Capital Investment           :    Rs.  82.97 Lacs
Rate of Return                           :    31%
Break Even Point                        :    61%


INTRODUCTION    
USES AND APPLICATION    
B.I.S. SPECIFICATION    
MARKET SERVEY    
MANUFACTURES/SUPPLIERS OF LATEX BASED RUBBER ADHESIVES    
SPECIFICATION OF SHOE ADHESIVE, NATURAL RUBBER LATEX BASED    
PROPERTIES OF LATEX BASD RUBBER ADHESIVES VERSUS SOLVENT BASED ADHESIVE    
ADVANTAGE OF LATEX ADHESIVE OVER RUBBER SOLUTION    
RAW MATERIALS    
PROPERTIES    
FORMULATIONS FOR WATER BASED LATEX ADHESIVES    
FORMULATIONS    
FORMULATION OF LATEX ADHESIVE FOR FOOTWEAR    
FORMULATION OF ADHESIVE FORMULATION (CHLOROPRENE BASED)    
FORMULATION OF POLYCHLOROPRENE BASED RUBBER ADHESIVE
    (MULTI PURPOSE)    
FORMULATION OF SBR ADHESIVE    
RAW MATERIALS CALCULATION    
MANUFACTURING PROCESS OF LATEX BASED ADHESIVES    
PROCESS FLOW DIAGRAM    
MANUFACTURING PROCESS OR RUBBER CEMENT    
PLANT LAYOUT    
PRINCIPLES OF PLANT LAYOUT    
PLANT LOCATION FACTORS    
EXPLANATION OF TERMS USED IN THE PROJECT REPORT    
PROJECT IMPLEMENTATION SCHEDULES    
SUPPLIERS OF PLANT & MACHINERY    
SUPPLIERS OF RAW MATERIALS    
                                                

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