Please wait.'

Page is loading'


Home  > Forum  > Special problems & miscellaneous  > plastisol adhesives formulation

Wednesday, 18 September 2019

plastisol adhesives formulation

8 Posts

Friday 20 November 1998 1:00:00 am

Where can i find information about plastisol
adhesives formulations which can be used for
etancheity and insonorisation in cars?

Author Message

  • Currently 0 out of 5 Stars.
  • 1
  • 2
  • 3
  • 4
  • 5
Log in or create a user account to rate this page. Rating: 0/5 (0 votes cast)

Friday 18 December 1998 1:00:00 am

Information about the formulation of plastisols for the purpose mentioned can best be found in specialist books and journals on coatings chemistry and in the relevant papers in "World Surface Coating Abstracts" (WSCA). Raw materials producers of corresponding products will also usually provide information about formulation and processing. The "Coatings raw materials tables" by Karsten/O.Lückert (9th edition; Hannover 1992) can also be helpful.
Polyvinyl chloride plastisols have been widely used in various fields. They have proved suitable for coating sheet metal by the coil coating process not only because of the protective effect and resistance of their films but also because their durability and flexibility have likewise proved advantageous in the metal forming process later on. However, PVC plastisols are also used for coating other metal articles. The underbody coating of vehicles is one such example. PVC plastisols are suspensions of PVC particles in liquid, non-volatile plasticisers (often di(2-ethylhexyl)phthalate which usually also contain stabilisers, adhesion promoters, pigments and fillers.
The choice of plasticisers in terms of type and quantity is determined to a large extent by the intended application and the processing conditions. If plastisols are used for underbody protection of vehicles, only plasticisers that are moisture-resistant and not subject to hydrolytic cleavage should be used. The rheological behaviour of plastisols is also largely determined by the type and proportion of plasticiser used. A critical case is when the plasticiser used tends to "exude" under the external stresses of the coating, or if the plasticiser migrates into an underlying primer and impairs the adhesion. Two articles by R.D. Athey (ECJ 10/96, 720-730 and ECJ 7-8/96, 512-513) are very instructive on the choice and effect of plasticisers and stabilisers.
PVC stabilisation is required in order to counteract the dissociation of hydrogen chloride which is triggered by heat or natural ageing. PVC suspensions can be applied even in thick layers by dipping and spraying. When heated to 180-200°C in the ambient air or in an IR oven, the layer homogenises because the PVC particles are dissolved in the plasticiser. After cooling, the coating obtained is rubbery-elastic in character and has good resistance to water, acids and alkalis as well as good abrasion and impact resistance. Apart from the protective effect obtained, even relatively moderate film thicknesses will provide an appreciable noise reduction.
The adhesion of PVC coatings may not meet all the requirements in certain cases. This shortcoming can be overcome by means of a special primer applied beforehand, or an added adhesion promoter. An adhesion promoter of a fairly recent kind for PVC homopolymers or copolymers, also available in the form of plastisols, was recently brought out by "Air Products and Chemicals, Inc.; Allentown (USA)". An alternative to PVC plastisols are the modern water-based PVC copolymer dispersions. These have an "inner" plastification due to a balanced monomer composition, so that the potential adverse effects due to "external" plasticisers are excluded. They also dry in a few hours in the air, or even more quickly under forced drying at up to 80°C. The adhesion and pigment wetting properties of these PVC copolymer dispersions is also markedly better. Polymers on a different polymer basis may possibly be of interest for the intended purpose mainly if halogen-free thick-film coatings are required. One such variant based on acrylic resin is described in EP 477708 (1991): Röhm GmbH.

  • Currently 0 out of 5 Stars.
  • 1
  • 2
  • 3
  • 4
  • 5
Log in or create a user account to rate this page. Rating: 0/5 (0 votes cast)

Wednesday 04 August 1999 1:00:00 am

1.Are there any alternatives to isocyanates as adhesion promoters for polyester fabrics?
2.Is there any cost advantage to use a water-based PVC copolymer to replace PVC plastisol in a coated fabric application?

  • Currently 0 out of 5 Stars.
  • 1
  • 2
  • 3
  • 4
  • 5
Log in or create a user account to rate this page. Rating: 0/5 (0 votes cast)

Monday 16 August 1999 1:00:00 am

Do you have more specific information regarding the Air Products adhesion promoter?
I have searched their web site and find nothing like that.

  • Currently 0 out of 5 Stars.
  • 1
  • 2
  • 3
  • 4
  • 5
Log in or create a user account to rate this page. Rating: 0/5 (0 votes cast)

Friday 20 August 1999 1:00:00 am

Adhesion Promoters for PVC plastisols
Ciba Specialty Chemicals is one of the leading producers of adhesion promoters for PVC plastisols in Europe. The Ciba trademark for these products EURETEK.
EURETEK adhesion promoters are highly efficient additives which help to achieve good adhesion of cured PVC plastisols on coated and uncoated metals.
The PVC plastisols are mainly used in the automotive industry as underbody coatings, seam sealers, and hem flanges.
Ciba Specialty Chemicals has an extensive product range of adhesion promoters in Europe with about 8 standard products (EURETEK) and about 9 development products (TC) which cover a large application area and are already available in the production scale.
Ciba Specialty Chemicals has been involved in intensive research in this area since long resulting in several tailor-made research products for the solution of special customer demands. That means, we are in the position to give technical support in our own laboratories in order to solve special problems with tailor-made developments.
For further details, additional technical information and support or samples please contact:
Doris Fitzek
Head of Technical Service Thermoplastics
Ciba Spezialitätenchemie GmbH Bergkamen
Postfach 1610
D-59180 Bergkamen
Germany
Fone: 0049/(0)2307-65 35 53
Fax: 0049/(0)2307-65 33 76
e-mail: doris.fitzek@cibasc.com

  • Currently 0 out of 5 Stars.
  • 1
  • 2
  • 3
  • 4
  • 5
Log in or create a user account to rate this page. Rating: 0/5 (0 votes cast)

Saturday 17 February 2001 1:00:00 am

what kind of plastisol adhesive formulation is better for bonding between paper & plastic in oil filter?pleas give me general formulation.

  • Currently 0 out of 5 Stars.
  • 1
  • 2
  • 3
  • 4
  • 5
Log in or create a user account to rate this page. Rating: 0/5 (0 votes cast)

Friday 12 September 2008 1:00:00 am

dear sir,
please give me an typical formulation for pvc and non pvc plastisol ink formulation.
Thanks&regards,
samuel.c

Rakesh Patil

  • Currently 0 out of 5 Stars.
  • 1
  • 2
  • 3
  • 4
  • 5
Log in or create a user account to rate this page. Rating: 0/5 (0 votes cast)

Thursday 04 April 2019 1:28:45 pm

Hi,
we produce the PVC Based organasol for packaging coatings.
we are facing issue with PVC compound adhesion with our organasol coating.
Application - Crown for Beverages
Application system- Organasol and plastic compound on it.

Is there any additives available to increase or any suggestions for mofifying the formulation.

anil patel

  • Currently 0 out of 5 Stars.
  • 1
  • 2
  • 3
  • 4
  • 5
Log in or create a user account to rate this page. Rating: 0/5 (0 votes cast)

Monday 13 May 2019 9:06:50 am

We are the manufacturer of BNT-600 for Ink And BNT-200 for Adhesive Additives.

Mail us for more info: anil.patel@bharatnano.com

top of page