EP1346778A2 - Method to apply a finishing coat onto the surface of a plastic or composite material - Google Patents
Method to apply a finishing coat onto the surface of a plastic or composite material Download PDFInfo
- Publication number
- EP1346778A2 EP1346778A2 EP03005516A EP03005516A EP1346778A2 EP 1346778 A2 EP1346778 A2 EP 1346778A2 EP 03005516 A EP03005516 A EP 03005516A EP 03005516 A EP03005516 A EP 03005516A EP 1346778 A2 EP1346778 A2 EP 1346778A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesive
- layer
- binder
- plastic
- surface layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 7
- 239000004033 plastic Substances 0.000 title claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 239000012790 adhesive layer Substances 0.000 claims abstract description 11
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 10
- 239000002344 surface layer Substances 0.000 claims abstract description 9
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000007751 thermal spraying Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 12
- 238000005507 spraying Methods 0.000 description 7
- 239000002313 adhesive film Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 229920003188 Nylon 3 Polymers 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010283 detonation spraying Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2201/00—Polymeric substrate or laminate
- B05D2201/02—Polymeric substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/101—Pretreatment of polymeric substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
Definitions
- the present invention relates to a method according to the pre-characterising clause of claim 1.
- the object of the present invention is to provide such improved adhesion and this is achieved by the combination of measures specified in the characterising part of claim 1.
- the method according to the invention affords a number of advantages, it being possible to work with a greater number of variations in temperature, particle sizes and material combinations than has hitherto been possible. This makes it easier to select what process parameters are to be used in order to achieve desired characteristics in terms of adhesion and optimum setting.
- Fig. 1 illustrates the pre-treatment of a part of the surface 2 of a component 1 of a composite material.
- the relevant component surface 2 is degreased using acetone, for example.
- the surface 2 is then lightly sanded using a fine abrasive paper or abrasive nylon 3 in order to remove irregularities and raise the surface somewhat. Finally the surface 2 is degreased and dried again.
- Fig. 2 shows how a layer 4 of a thermosetting adhesive, here in the form of an adhesive film, is applied to the surface 2 pre-treated in accordance with Fig. 1.
- a layer 4 of a thermosetting adhesive here in the form of an adhesive film
- this can be applied, for example, by spraying or applying it with a brush.
- a number of different adhesive layers are feasible, for example epoxy adhesive, acrylic adhesive, urethane adhesive or phenolic plastic-based adhesive.
- Fig. 3 shows how the thermosetting adhesive layer 4 is heated up by means of a heat gun 5 to a temperature close to the gel point of the adhesive. This gives the adhesive layer a very good adhesive capacity. It will be obvious that the adhesive layer 4 can be heated in some other way to that illustrated in Fig. 3, for example in an oven or the like.
- Fig. 4 shows the application by spraying of a binder in particulate form.
- the particulate form may be powder or short fibre lengths of the material.
- the particles can be applied by scattering on or applying them to the adhesive surface in some other way, so that the particles partially penetrate the latter.
- Fig. 5 shows how, after application of the binder, the component 1 is placed in an oven 7 or the like for heating to the thermosetting temperature of the adhesive layer 4, so that this is made to set, which means that an excellent adhesive bond is obtained between the adhesive layer 4 and the composite material.
- Fig. 6 shows how the pre-treated surface 2 provided with the adhesive layer 4 is coated with a layer 6 of an additional material by thermal spraying, for example flame spraying.
- This additional material may be any of the following: a ceramic; metal oxide; metal; metal alloy or plastic.
- the temperature of the sprayed material can be adjusted through the choice of spraying method.
- feasible spraying methods include, for example, arc spraying, plasma spraying or detonation spraying.
- the application temperature can be varied from approximately 50°C to several hundred degrees Celsius through the use of different spraying methods and additional material.
- Adhesive is selected having regard to the additional material and application temperature, so that the best possible strength and surface layer quality of the coating 6 can be achieved.
- Fig. 7 shows the finished component 1 after it has been coated with a layer 6 of an additional material and the adhesive layer 4 has been set by the method according to the invention.
Abstract
Method of applying a surface layer to at least one part of the surface of a plastic or composite component. The method comprises the following measures in combination: a) the surface of the component is degreased and sanded, b) a layer of a thermosetting adhesive is applied to the degreased and sanded surface, c) a binder in particulate form is applied to the adhesive layer, d) the adhesive is allowed to set, the binder particles being fixed to form a base for the surface layer, e) the surface layer is applied. <IMAGE>
Description
The present invention relates to a method according to the pre-characterising clause of claim 1.
As an example of the prior art, reference will be made to Swedish patent No. 9701363-5,
publication number 511 775.
Even though a good result is achieved by the method, described therein, of coating the surface of
a plastic or composite component with an additional material by thermal spraying, there is a
desire, in applications where the layer of additional material is exposed to extreme stresses, to
achieve an improved adhesion between the layer and the surface of the plastic or composite
component. These may be surfaces that are exposed, for example, to strong air flows, erosion and
wear, such as aircraft wings and nose cones for rockets and missiles.
The object of the present invention is to provide such improved adhesion and this is achieved by
the combination of measures specified in the characterising part of claim 1.
The method according to the invention affords a number of advantages, it being possible to work
with a greater number of variations in temperature, particle sizes and material combinations than
has hitherto been possible. This makes it easier to select what process parameters are to be used
in order to achieve desired characteristics in terms of adhesion and optimum setting.
The method according to the invention, which may have one or more of the characteristics
specified in the subordinate claims, will be explained in more detail with reference to the drawing
attached, in which:
- Fig. 1
- shows the pre-treatment of the surface of a component that is to be coated,
- Fig. 2
- shows the application of a layer in the form of a thermosetting adhesive to the pretreated surface,
- Fig. 3
- shows the applied thermosetting adhesive being heated to a temperature close to its gel point,
- Fig. 4
- shows the application of a binder in particulate form by spraying,
- Fig. 5
- shows the layer of thermosetting adhesive being heated to its setting temperature in an oven,
- Fig. 6
- shows the component being coated with additional material by thermal spraying,
- Fig. 7
- shows the finished component.
Fig. 1 illustrates the pre-treatment of a part of the surface 2 of a component 1 of a composite
material. As a preliminary, the relevant component surface 2 is degreased using acetone, for
example. The surface 2 is then lightly sanded using a fine abrasive paper or abrasive nylon 3 in
order to remove irregularities and raise the surface somewhat. Finally the surface 2 is degreased
and dried again.
Fig. 2 shows how a layer 4 of a thermosetting adhesive, here in the form of an adhesive film, is
applied to the surface 2 pre-treated in accordance with Fig. 1. In applying the adhesive film it is
important to ensure that no contaminating substances are allowed to come into contact with the
pre-treated surface 2 or the adhesive. Instead of applying the adhesive in the form of a film, as
shown in Fig. 2, this can be applied, for example, by spraying or applying it with a brush. A
number of different adhesive layers are feasible, for example epoxy adhesive, acrylic adhesive,
urethane adhesive or phenolic plastic-based adhesive.
Fig. 3 shows how the thermosetting adhesive layer 4 is heated up by means of a heat gun 5 to a
temperature close to the gel point of the adhesive. This gives the adhesive layer a very good
adhesive capacity. It will be obvious that the adhesive layer 4 can be heated in some other way to
that illustrated in Fig. 3, for example in an oven or the like.
Fig. 4, as stated, shows the application by spraying of a binder in particulate form. The
particulate form may be powder or short fibre lengths of the material. Alternatively the particles
can be applied by scattering on or applying them to the adhesive surface in some other way, so
that the particles partially penetrate the latter.
Fig. 5 shows how, after application of the binder, the component 1 is placed in an oven 7 or the
like for heating to the thermosetting temperature of the adhesive layer 4, so that this is made to
set, which means that an excellent adhesive bond is obtained between the adhesive layer 4 and the
composite material. By heating up the adhesive layer 4 to a temperature close to its gel point
before coating, in accordance with Fig. 3, the time taken for this stage of the method can be
minimised, since only a certain amount of further heating is required.
Fig. 6 shows how the pre-treated surface 2 provided with the adhesive layer 4 is coated with a
layer 6 of an additional material by thermal spraying, for example flame spraying. This
additional material, for example, may be any of the following: a ceramic; metal oxide; metal;
metal alloy or plastic. The temperature of the sprayed material can be adjusted through the
choice of spraying method. In addition to flame spraying, feasible spraying methods include, for
example, arc spraying, plasma spraying or detonation spraying. The application temperature can
be varied from approximately 50°C to several hundred degrees Celsius through the use of
different spraying methods and additional material. Adhesive is selected having regard to the
additional material and application temperature, so that the best possible strength and surface
layer quality of the coating 6 can be achieved.
Fig. 7 shows the finished component 1 after it has been coated with a layer 6 of an additional
material and the adhesive layer 4 has been set by the method according to the invention.
It will be obvious to a person skilled in the art that the method according to the invention is not
limited to the embodiment described above but may instead lend itself to modifications within the
scope of the idea of the invention defined in the patent claims below. Once a first coating layer
has been applied and set by the method according to the invention, further layers of different
materials, for example, may be applied on top of this by thermal spraying, without the need now
to use any adhesive film.
Claims (6)
- Method of applying a surface layer to at least one part of the surface (2) of a plastic or composite component (1), characterised in that the method comprises the following measures in combination:a) the surface of the component is degreased and sanded (3),b) a layer (4) of a thermosetting adhesive is applied to the degreased and sanded surface,c) a binder in particulate form is applied to the adhesive layer (4),d) the adhesive is allowed to set, the binder particles being fixed to form a base for the surface layer,e) the surface layer is applied.
- Method according to Claim 1, characterised in that the binder is applied in powder form.
- Method according to Claim 1, characterised in that the binder is applied in the form of thin fibres.
- Method according to any of the preceding Claims, characterised in that the binder is a ceramic, metal oxide, metal, metal alloy or plastic.
- Method according to any of the preceding Claims, characterised in that the surface layer is applied by thermal spraying or the use of a known chemical method.
- Method according to any of the preceding Claims, characterised in that before the surface layer is applied the set adhesive surface with binder particles fixed therein is sanded.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0200853 | 2002-03-20 | ||
| SE0200853A SE524686C2 (en) | 2002-03-20 | 2002-03-20 | Method of applying a cover layer to the surface of a plastic or composite piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1346778A2 true EP1346778A2 (en) | 2003-09-24 |
| EP1346778A3 EP1346778A3 (en) | 2004-09-08 |
Family
ID=20287335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03005516A Withdrawn EP1346778A3 (en) | 2002-03-20 | 2003-03-11 | Method to apply a finishing coat onto the surface of a plastic or composite material |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1346778A3 (en) |
| SE (1) | SE524686C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605312A (en) * | 2012-03-29 | 2012-07-25 | 常熟市常福有机复合肥有限公司 | Method for processing surface of plastic mould |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2716075A (en) * | 1954-03-17 | 1955-08-23 | Randolph A Wiese | Polyethylene coating and method of applying the same |
| JPS6283074A (en) * | 1985-10-09 | 1987-04-16 | Hirofumi Aoki | Method for forming film |
| US5792518A (en) * | 1994-06-08 | 1998-08-11 | Gibson; Mark | On-site pipe coating process |
| WO1998046369A1 (en) * | 1997-04-14 | 1998-10-22 | Applied Composites Ab Acab | Method for coating and product produced in accordance with said method |
| US6146709A (en) * | 1998-07-15 | 2000-11-14 | Institute Of Gas Technolgy | Method for application of protective polymer coating |
-
2002
- 2002-03-20 SE SE0200853A patent/SE524686C2/en unknown
-
2003
- 2003-03-11 EP EP03005516A patent/EP1346778A3/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2716075A (en) * | 1954-03-17 | 1955-08-23 | Randolph A Wiese | Polyethylene coating and method of applying the same |
| JPS6283074A (en) * | 1985-10-09 | 1987-04-16 | Hirofumi Aoki | Method for forming film |
| US5792518A (en) * | 1994-06-08 | 1998-08-11 | Gibson; Mark | On-site pipe coating process |
| WO1998046369A1 (en) * | 1997-04-14 | 1998-10-22 | Applied Composites Ab Acab | Method for coating and product produced in accordance with said method |
| US6146709A (en) * | 1998-07-15 | 2000-11-14 | Institute Of Gas Technolgy | Method for application of protective polymer coating |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 0112, no. 90 (C-447), 18 September 1987 (1987-09-18) & JP 62 083074 A (HIROFUMI AOKI), 16 April 1987 (1987-04-16) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605312A (en) * | 2012-03-29 | 2012-07-25 | 常熟市常福有机复合肥有限公司 | Method for processing surface of plastic mould |
| CN102605312B (en) * | 2012-03-29 | 2014-03-05 | 常熟市慧丰塑料制品有限公司 | Method for processing surface of plastic mould |
Also Published As
| Publication number | Publication date |
|---|---|
| SE0200853D0 (en) | 2002-03-20 |
| SE524686C2 (en) | 2004-09-14 |
| SE0200853L (en) | 2003-09-21 |
| EP1346778A3 (en) | 2004-09-08 |
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