CN109476090A - The joint method of synthetic resin - Google Patents
The joint method of synthetic resin Download PDFInfo
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- CN109476090A CN109476090A CN201780043290.XA CN201780043290A CN109476090A CN 109476090 A CN109476090 A CN 109476090A CN 201780043290 A CN201780043290 A CN 201780043290A CN 109476090 A CN109476090 A CN 109476090A
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- molded product
- resin
- ultraviolet light
- synthetic resin
- bond strength
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The synthetic resin formed by thermoplasticity Crystalline resin composition is attached in the present invention so that the deformation of synthetic resin, the deformation of hollow portion are suppressed smaller and obtain sufficient bond strength.A kind of joint method that the synthetic resin of the resin combination composition of compound and/or elastomer to containing thermoplasticity crystalline resin and with polar functional group is engaged, comprising the following steps: the first molded product (10 is provided1) and the second molded product (102)；Respectively to the first molded product (101) and the second molded product (102) surface scheduled shadow surface (101a、102A) irradiating ultraviolet light；To the first molded product (101) and the second molded product (102) it is positioned such that shadow surface (101a、102A) opposed contact；To the first molded product (101) and the second molded product (102) heated and pressurizeed, so that the first molded product (101) and the second molded product (102) in respective shadow surface (101a、102A) it engages.
Description
Technical field
The present invention relates to a kind of irradiation lights come the joint method of the synthetic resin engaged to synthetic resin.
Background technique
All the time, the runner of analytical equipment, match tube elements, electronic control unit (ECU:Electronic Control
Unit case lid etc.) is made of resin combination, and using in the internal three-dimensional hollow body for forming hollow portion.Three-dimensional hollow body
Multiple component parts of most of synthetic resins to be formed by resin combination are constituted in a manner of engaging each other.
In order to which the component parts to synthetic resin engages, adhesive, thermofussion welding etc., various engagement skills are proposed
Art.But although the technology engaged by adhesive to synthetic resin can be in the feelings for deforming synthetic resin
It is engaged under condition, but the solidification of adhesive will spend a few houres thus producing rate variance under normal circumstances, and due to adhesive
Leakage dew is not suitable for the engagement of fine runner element to hollow portion and the problem of cause slot to bury etc.Moreover, to resin
The synthetic resin that the technology that molded product carries out thermofussion welding can be engaged with a few minutes, but be engaged generates burr sometimes, or
In hollow portion thermal deformation occurs for person.
Furthermore, it is also proposed that carried out in a manner of being handled by vacuum-ultraviolet light (VUV) synthetic resin
The technology (- 4, non-patent literature 1 referring to patent document 1) of engagement.According to the technology, although the engagement needs of synthetic resin are several
Minute arrives the time of dozens of minutes or so, but small, hollow portion the deformation of deformation of the synthetic resin engaged is also small.Patent text
Offer 1,2, contemplate synthetic resin by polymethyl methacrylate (PMMA) resin, cyclic olefin resin in non-patent literature 1
Equal amorphous resins are formed, and bond strength is in 1MPa or less.Silicone adhesive is contemplated in patent document 3,4.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2006-187730 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2009-173894 bulletin
Patent document 3: Japanese Unexamined Patent Publication 2011-148104 bulletin
Patent document 4: Japanese Unexamined Patent Publication 2013-147018 bulletin
Non-patent literature
Non-patent literature 1: mouth of a valley justice is still and other 4 people, " cyclic olefin polymer for being activated by optical surface and being realized connects
Close: bond strength evaluation and application in fluid channel ", sufacing, sufacing association, volume 2014, the 65th, No. 5, the
36-41 pages
Summary of the invention
Problems to be solved by the invention
On the other hand, it is applied with molded product (the especially three-dimensional hollow of big mechanical stress for a long time for water pump element etc.
Body), using with polybutylene terephthalate (PBT) (PBT) resin of firm stable property, polyphenylene sulfide (PPS) resin that
The thermoplastic resin of sample.In addition, also seeking to and being engaged to synthetic resin made of thermoplastic resin
When three-dimensional hollow body is made, because small, hollow portion the deformation of deformation of synthetic resin caused by engaging is also small.
Although the technology engaged in a manner of being handled by vacuum-ultraviolet light above-mentioned synthetic resin
Can the deformation of the deformation of synthetic resin, hollow portion be inhibited smaller, but it is envisioned that the resin formed by amorphous resin
The engagement of molded product, the solidification of silicone adhesive, but it is unable to ensure sufficient bond strength.
The present invention is situation and the scheme that proposes in view of the above fact, and the purpose of the present invention is to provide one kind for by heat
The synthetic resin that plasticity Crystalline resin composition is formed, also can be by the deformation of synthetic resin, the deformation of hollow portion
Inhibit smaller, so as to obtain the joint method of synthetic resin as high bond strength (1MPa or more).
The method used for solving the problem
In order to solve the above problems, the joint method of synthetic resin according to the present invention is, to containing thermoplasticity
The synthetic resin of the resin combination of crystalline resin and compound and/or elastomer with polar functional group composition into
The processing method of row processing, comprising: following steps: the first molded product and the second molded product are provided；Respectively to the first one-tenth described
The predetermined irradiation area irradiating ultraviolet light on the surface of type product and second molded product；To first molded product and described
Second molded product is positioned such that the opposed contact of the irradiation area；To first molded product and second molded product
It is pressurizeed so that first molded product and second molded product engage in respective irradiation area.
When the ultraviolet light can also be below to first molded product and second molded product irradiation 10 minutes
Between.Respectively surface also may include opposed faces for first molded product and second molded product, and the irradiation area can also
To include at least part of the opposed faces.The thermoplasticity crystalline resin can also contain polyformaldehyde, gather to benzene two
Formic acid butanediol ester, polyethylene terephthalate, polyphenylene sulfide or liquid crystal polymer.Here, opposed faces refer to, such as flat
Smooth face each other can opposed contact surface, even having indent and convex surface, as long as the recess portion of the first molded product and
The table that the protrusion (or recess portion of the protrusion of the first molded product and the second molded product) of two molded products can be bonded in a corresponding way
Face then has no and particularly limits.
Invention effect
In accordance with the invention it is possible to by the deformation of synthetic resin, especially constitute the synthetic resin of three-dimensional hollow body
The deformation of hollow portion resists smaller to engage synthetic resin.In addition, the synthetic resin engaged connects with height
Close intensity.
Detailed description of the invention
Figure 1A is the figure for schematically showing the process of joint method of synthetic resin.
Figure 1B is the figure for schematically showing the process of joint method of synthetic resin.
Fig. 1 C is the figure for schematically showing the process of joint method of synthetic resin.
Fig. 2 is the photo of UV curing apparatus.
Fig. 3 is the photo of joint test piece.
Fig. 4 is the curve graph for indicating the relationship of irradiation time and bond strength.
Fig. 5 is the curve graph for indicating the bond strength of the type according to PPS resin composition.
Fig. 6 is the curve graph for indicating the bond strength of the type according to POM resin combination.
Fig. 7 is the curve graph for indicating the bond strength of the wavelength according to ultraviolet light.
Fig. 8 is to indicate from the irradiation of ultraviolet light by the curve graph after a certain period of time with the contact angle of water.
Fig. 9 is the electron micrograph in the section on the joint portion periphery of the joint test piece of columnar alignment A.
Figure 10 is the electron microscope in the section on the joint portion periphery of the joint test piece engaged by epoxy adhesive
Photo.
Figure 11 is the electron microscope by the section for vibrating the joint portion periphery for the joint test piece that deposition engages
Photo.
Specific embodiment
Hereinafter, being carried out specifically referring to embodiment of the attached drawing to the joint method of synthetic resin according to the present invention
It is bright.In the present embodiment, it is used as resin combination containing thermoplasticity crystalline resin and there is polar functional group
Compound and/or elastomer resin combination.
As thermoplasticity crystalline resin, for example, it is also possible to use polyformaldehyde (POM), polybutylene terephthalate
Ester (PBT), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), liquid crystal polymer.Thermoplasticity crystalline resin
It is generally opaque, but the low resin of crystallinity be also possible to it is translucent or transparent.In the change with polar functional group
It closes in object, in addition to Bisphenol A epoxides, bisphenol F type epoxy compound, novolak type epoxy compounds, aliphatic type ring
Other than the epoxy compounds such as oxygen compound, glycidyl amine epoxy compound, oxazoline compound, oxazines can also be used
Compound, carbodiimide compound, dimethyleneimine compound.In the elastomer, in addition to ethylene ethyl acrylate copolymer, second
The acrylic elastomers such as the olefin-based elastomers such as alkene glycidyl methacrylate copolymer, acrylic acid series nucleocapsid polymer
In addition, carbamate based elastomers, styrene series elastomer, polyester-based elastomer, diene based elastomers etc. can also be used.
In addition, the fillers such as glass fibre, antioxidant, stabilizer, nucleation can also be added in thermoplasticity crystalline resin
Being added under normal circumstances for agent, lubricant, plasticizer, release agent, colorant etc is various in resin combination
Additive.
In the present embodiment, using the first molded product made of resin combination and the second molded product and make them
It engages each other.The opposed faces to engage each other in first molded product and the second molded product including surface, and their opposed faces
It is formed corresponding shape.For example, the opposed faces of the first molded product and the second molded product can also be respectively formed as greatly
It causes flat.In addition, opposed faces either have indent and convex surface, are also possible to form with the recess portion of the first molded product and second
The surface that the corresponding mode of protrusion (or recess portion of the protrusion of the first molded product and the second molded product) of product can be bonded.
Figure 1A to Fig. 1 C is the figure for schematically showing a series of process of present embodiment.As shown in Figure 1A, prepare
First molded product 10 out1, using UV curing apparatus 20 to the first molded product 101Shadow surface 101A irradiates ultraviolet (UV) light.
First molded product 101Shadow surface 101A is used and the second molded product 102The opposed faces of engagement.
Here, ultraviolet light refers to wavelength in 380nm light below.Wavelength is 200nm or less especially within ultraviolet light
Light be referred to as vacuum-ultraviolet light (VUV).In addition, though the light that vacuum-ultraviolet light is not necessarily irradiated in a vacuum, but
The ultraviolet light of the wavelength domain is big through the absorption of air, therefore needs to shorten vacuum-ultraviolet light in the case where being irradiated in air
The distance of propagation.
In figure 1A, UV curing apparatus 20 has the light sources 21 such as Xe Excimer lamp and will release from light source 21
The reflecting plate 22 that light is reflected towards irradiation object.Fig. 2 is an exemplary photo for indicating UV curing apparatus.The photo
Shown in UV curing apparatus can be from the opening being formed on framework upper surface towards top irradiating ultraviolet light.
As shown in Figure 1A, the first molded product 101Shadow surface 10 with general planar1a.In the present embodiment, from ultraviolet
Light irradiation device 20 is towards the first molded product 101Shadow surface 101A irradiating ultraviolet light 2 minutes.Treatment with irradiation in this way,
First molded product 101Shadow surface 101It is formed on a from shadow surface 101A plays the character of the resin combination until predetermined depth
The process layer 11 to have changed1。
Similarly, prepare the second molded product 10 out2, from UV curing apparatus 20 towards the second molded product 102Shadow surface
102A irradiating ultraviolet light 2 minutes.Second molded product 102Shadow surface 102A is used and the first molded product 101The opposed faces of engagement.
Treatment with irradiation in this way, in the second molded product 102Shadow surface 102It is also formed on a from shadow surface 102A rises to pre- depthkeeping
The process layer 11 that the character of resin combination has changed until degree2。
In the present embodiment, ultraviolet light is to the first molded product 101And second molded product 102Irradiation be not limited to 2
Minute, it is also possible to more than 0 minute and 15 minutes time below.In addition it is also possible to be 10 minutes 30 seconds or more or less (such as
7 minutes 1 minute or more or less) time.Pass through the irradiation of ultraviolet light, the first molded product 101Shadow surface 101The molding of a and second
Product 102Shadow surface 102The deterioration of a promotes, and there is the case where bond strength reduction instead, therefore ultraviolet light is to the first molded product
101And second molded product 102Irradiation preferably within the predetermined time.
In addition, ultraviolet light is to the first molded product 101With the second molded product 102Irradiation also can use same ultraviolet lighting
Injection device carries out simultaneously.In addition it is also possible to said sequence on the contrary, first carrying out ultraviolet light to the second molded product 102Irradiation, so
Afterwards to the first molded product 101Irradiating ultraviolet light.
As shown in Figure 1B, to the first molded product 101And second molded product 102It is positioned such that the first molded product 101's
Shadow surface 101A and the second molded product 102Shadow surface 102The opposed contact of a.I.e., make the first molded product 101Opposed faces and second
Molded product 102The corresponding fitting of opposed faces.In the state of located, the first molded product 101General planar shadow surface
101A and the second molded product 102General planar shadow surface 102A is substantially contacted with each other on the whole at it.
Here, in order to ensure higher bond strength, to the first molded product 101And second molded product 102It is positioned
Operation is preferably to terminate to the first molded product 101And second molded product 102The process (A referring to Fig.1) of irradiating ultraviolet light, it
Afterwards, it is carried out in short time as far as possible (within preferably 5 minutes, within such as 1 minute).In addition, even if in irradiation as ultraviolet
In the case where the vacuum-ultraviolet light of light, terminate irradiation after the time of the operation positioned is extended long situation
Under (such as within 1 month, preferably 1 week, within more preferably 3 hours, within further preferably 1 hour, especially preferably
Within 30 minutes), it is also easy to obtain high bond strength, thus it is advantageous.
As shown in Figure 1 C, the first molded product that located using 32 pairs of the first punch components 31 and the second punch components
101And second molded product 102It is clamped.Moreover, using the first punch components 31 and the second punch components 32 to the first one-tenth
Type product 101And second molded product 102It pressurizes.
For example, it is also possible to by the first punch components 31 and the second punch components 32, towards to the first molded product 101's
Shadow surface 101A and the second molded product 102Shadow surface 102The direction that a is pressed mutually is to the first molded product 101Shadow surface
101A and the second molded product 102Shadow surface 102A applies pressure.The pressure pressed can be in the range of 10 to 50MPa
It is suitably adjusted, such as can also be pressurizeed at 30MPa.Pressing time can also be in 2 minutes to 100 minutes ranges
It is interior suitably to be adjusted, pressurization 60 minutes can also be carried out.Meanwhile first punch components 31 and the second punch components 32 can also
To have heating device, the heating device also can use to the first molded product 101Shadow surface 101A and the second molded product 102
Shadow surface 102A is heated.First molded product 101Shadow surface 101A and the second molded product 102Shadow surface 102The temperature of a
It can suitably be adjusted in the range of 50 DEG C to 200 DEG C according to used thermoplasticity crystalline resin, for example, it is also possible to
It is heated in a manner of maintaining 120 DEG C.
Heating and pressurization in this way make the first molded product 101Process layer 111With the second molded product 102Processing
Layer 112It blends, to form single bonding layer 12.That is, the first molded product 101With the second molded product 102Respective opposed
Linked in a manner of mutually merging on face.First molded product 10 as a result,1And second molded product 102Become one by bonding layer 12
Body and link together, to constitute single molded product (such as three-dimensional hollow body).
Bonding layer 12 is the first molded product 10 being had activated by ultraviolet light1Process layer 111With the second molded product 102
Process layer 112It is fused together by the heating of predetermined time and the process of pressurization.Therefore, it is realized by bonding layer 12
First molded product 101And second molded product 102Be connected in terms of mechanicalness securely, it is also stable at chemically aspect.
In the present embodiment, by making the first molded product 10 formed by vacuum-ultraviolet light1Process layer 111With second
Molded product 102Process layer 112It links together as the bonding layer 12 merged into each other.Therefore, the deformation of bonding layer 12 it is small,
Burr will not be generated.In addition, even if on bonding layer 12 there are in the case where the hollow portion of the fine construction such as slot, will not
It is damaged because of the deformation of such hollow portion.
Present embodiment can use polyformaldehyde (POM), polybutylene terephthalate (PBT) with firm stable property
(PBT) heat as resin, polyethylene terephthalate (PET) resin, polyphenylene sulfide (PPS) resin, liquid crystal polymer
Plasticity crystalline resin.Such thermoplasticity crystalline resin can be used for water pump element etc. and be applied with big machinery for a long time answering
The production of the three-dimensional hollow body of power.
Embodiment
The embodiment for being applicable in above-mentioned present embodiment is illustrated.Fig. 3 is the photo for indicating joint test piece.?
In the present embodiment, the joint test piece as shown in the photo of Fig. 3 is used as the first molded product and the second molded product.
Joint test piece is that the tension test sheet TYPe1A based on ISO3167 is made up of various resin combinations, later, with 2 etc.
Point mode cut off in the centre of length direction, and respectively from cut off end overlapping 10mm using as bonding land
Domain.In photo, 2 joint test pieces are loaded in a manner of engaging each other in engaging zones.
Fig. 4 is the curve graph for indicating the relationship of irradiation time and bond strength.The graphical representation goes out use according in Fig. 1
The a series of process being illustrated and the joint test piece engaged, are based on ISO527-1,2 and using cupping machine come
Result after being measured to bond strength.Here, using wavelength 172nm, illumination 6mW/cm as ultraviolet light2Vacuum it is purple
The process of outer light, the positioning of joint test piece shown in Figure 1B has terminated to carry out within 5 minutes in the irradiation of vacuum-ultraviolet light.This
Outside, heating and the process pressurizeed shown in Fig. 1 C are to maintain 1 hour at 120 DEG C of temperature and pressure 30MPa.
Measured value a in Fig. 4 is the first molded product of expression and the second molded product is by by 30 matter of glass fibre
Polybutylene terephthalate (PBT) (PBT) resin (Win Tech Polymer Co. Ltd. system Duranex that amount % is enhanced
(registered trademark) 3300) bisphenol A type epoxy resin (Mitsubishi chemical Co., Ltd's Epikote (registrar is added in resin
Mark) JER1004K) 1.5 mass %, the bond strength of the joint test piece at irradiation time 2 minutes.
As comparative example, broken line b indicates that the engagement in the case where the PBT resin enhanced by 30 mass % of glass fibre is strong
Degree.The PBT resin that 30 mass % of glass fibre strengthens is more than in 0 minute and 7 minutes regions below in irradiation time, and engagement is strong
Degree changes according to the variation of irradiation time, but irradiation time 2 minutes whens reach maximum bond strength 9.3MPa.
The bond strength of PBT resin that the 30 mass % of glass fibre for being added to epoxy resin of measured value a strengthens is
10.0MPa, the PBT resin (glass fibre 30 shown in broken line b strengthened with the 30 mass % of glass fibre for being not added with epoxy resin
The PBT resin that quality % strengthens) in compared as the 9.3MPa of maximum bond strength, bond strength further increases.
Fig. 5 is the curve graph for indicating the bond strength of the type according to PPS resin composition.As the first molded product and
Second molded product and using the following documented joint test piece being made of PPS resin composition, according in Figure 1A to Fig. 1 C
The a series of process illustrated, to engaging zones illumination wavelength 172nm, the illumination 6mW/cm of joint test piece2Vacuum it is purple
Outer light, wherein columnar alignment A, B and C are 2 minutes, and columnar alignment D is 10 minutes, to being connect within 5 minutes from terminating irradiation
The positioning of test film is closed, columnar alignment A, B, C and D are respectively heated and are added at 160 DEG C of temperature and pressure 30MPa
Press engage each other within 1 hour.Then, the bond strength of the joint test piece engaged is surveyed using cupping machine
Amount.
Columnar alignment A is that the first molded product and the second molded product are by PPS resin (treasured reason plastics
(Polyplastics) Co. Ltd. system DURAFIDE (registered trademark) 0220A9) in be added to 30 mass % of glass fibre and
What the composition after elastomer (Sumitomo Chemical Co BOND FAST 7L) 4 mass % containing glycidyl was formed
Value, bond strength 8.5MPa.Columnar alignment B is that the first molded product and the second molded product are by PPS resin (treasured reason
Plastics Co. Ltd. system DURAFIDE (registered trademark) 0220A9) in be added to 30 mass % of glass fibre and epoxy resin
(Mitsubishi chemical Co., Ltd Epikote (registered trademark) JER1004K) 2 mass % and ethylene ethyl acrylate copolymer (strain
Formula commercial firm NUC NUC-6570) value that is formed of the composition after 10 mass %, bond strength 11.2MPa.
All be as columnar alignment C and D shown in comparative example, the first molded product and the second molded product be by
After being added to 30 mass % of glass fibre in PPS resin (Polyplastics Co., Ltd. DURAFIDE (registered trademark) 0220A9)
Composition formed value, as bond strength, columnar alignment C and D are 0.0MPa.
As columnar alignment A and B, as long as by being added to the compound with polar functional group in PPS resin
The molded product of combination of compositions after (being epoxy resin in above-mentioned example), elastomer, then can obtain high bond strength.With this
Relatively, as the columnar alignment C and D of comparative example, by the PPS tree for being not added with compound with polar functional group, elastomer
The molded product of oil/fat composition composition is difficult to obtain sufficient bond strength.
Fig. 6 is the curve graph for indicating the bond strength of the type according to POM resin combination.As the first molded product and
Second molded product and use the joint test piece that is made of following documented POM resin combination, according in Figure 1A to Fig. 1 C
The a series of process illustrated, to engaging zones illumination wavelength 172nm, the illumination 6mW/cm of joint test piece2Vacuum it is purple
Outer light, wherein columnar alignment E is 7 minutes, and columnar alignment F and G are 5 minutes, to carrying out engagement examination within 5 minutes from terminating irradiation
The positioning for testing piece, at 140 DEG C of the temperature and pressure 15MPa, being respectively heated and pressurize 1 hour engages each other.So
Afterwards, the bond strength of the joint test piece engaged is measured using cupping machine.
Columnar alignment E is that the first molded product and the second molded product are by POM resin (Polyplastics Co., Ltd.
DURACON (registered trademark) M90-44 processed) in addition acrylic acid series nucleocapsid polymer (Ganz be melted into Co. Ltd. system
Stafyroid (registered trademark) PO-0198) 15 mass % and ethylene ethyl acrylate copolymer (Co., Ltd. NUC NUC-
6570) value that composition is formed after 3 mass %, bond strength 3.8MPa.Columnar alignment F is, the first molded product and the second one-tenth
Type product are by being added to poly- ammonia in POM resin (Polyplastics Co., Ltd. DURACON (registered trademark) M90-44)
Composition after carbamate resin (Dainichiseika Color Chem Resamine P-4088) 13 mass % addition is formed
Value, bond strength 4.3MPa.
It is that the first molded product and the second molded product are the POM tree by nonreinforcement as columnar alignment G shown in comparative example
The value that rouge (Polyplastics Co., Ltd. DURACON (registered trademark) M90-44) is formed, bond strength 0.0MPa.
About POM resin, elastomer compositions are added to shown in columnar alignment E and F and show high bond strength.As
Comparative example can not obtain high bond strength come the columnar alignment G for being not added with elastomer indicated.
In addition, the combined engagement as different kinds material, the first molded product and the second molded product use following institute
The joint test piece being made of resin material recorded, according to a series of process being illustrated in Figure 1A to Fig. 1 C, to connecing
Close engaging zones illumination wavelength 172nm, the illumination 6mW/cm of test film2Vacuum-ultraviolet light 2 minutes, from irradiation terminate to 5 points
The positioning of joint test piece is carried out within clock, and is heated and pressurizeed to engage each other under the conditions of following documented.
Then, it is measured using bond strength of the cupping machine to the joint test piece engaged.
Combination as different kinds material, that is, the first molded product is identical as composition used in broken line a, by glass
The PBT resin (Win Tech Polymer Co. Ltd. system Duranex (registered trademark) 3300) that 30 mass % of fiber is enhanced
The composition of composition, the second molded product are identical as composition used in columnar alignment C, by PPS resin (Polyplastics Co., Ltd.
DURAFIDE (registered trademark) 0220A9 processed) in be added to 30 mass % of glass fibre and the elastomer containing glycidyl
The combination of the composition of composition composition after (Sumitomo Chemical Co BOND FAST 7L) 4 mass %, in temperature 160
DEG C and pressure 30MPa under heated and pressurizeed 1 hour when bond strength be 11.0MPa.In addition, making the second molding
Product become the composition that forms of ABS resin (Asahi Kasei Corporation STYLAC 220) by nonreinforcement, 80 DEG C of temperature with
And when being heated and pressurizeed under pressure 15MPa 10 minutes, bond strength 2.3MPa.And make the second molded product become by
The composition of PC resin (the Teijin Ltd Panlite L-1225L) composition of nonreinforcement, in 140 DEG C of temperature and pressure
When being heated and pressurizeed under 15MPa 10 minutes, bond strength 3.9MPa.
According to this as a result, can confirm: if using joint method of the invention, from can also be real without the use of adhesive etc.
The engagement of existing different kinds material.In addition, although more preferably adding in both the first molded product and the second molded product has
The resin combination of the compound of polar functional group, elastomer, but wherein such resin combination is being used in either one
It can get high bond strength.In addition, in the feelings for making the second molded product become amorphous resin as ABS resin, PC resin
Also the bond strength of 1MPa or more can be obtained under condition.I.e., in the joint method of the present invention, by that will be crystallized in thermoplasticity
Property resin in be added to the resin combination of compound with polar functional group, elastomer for the first molded product and the second one-tenth
Either in type product, even so that engagement with amorphous resin, still can get high bond strength.
Moreover, the first molded product and the second molded product are identical as composition used in measured value a in Fig. 7, make
Used in PBT resin (the Win Tech Polymer Co. Ltd. system Duranex (registration enhanced by 30 mass % of glass fibre
Trade mark) 3300) in be added to bisphenol A type epoxy resin (Mitsubishi chemical Co., Ltd Epikote (registered trademark)
JER1004K) the composition after 1.5 mass %, columnar alignment H are illumination wavelength 172nm, illumination 6mW/cm2Vacuum-ultraviolet light 2
Minute, columnar alignment I are illumination wavelength 254nm, illumination 6mW/cm2Ultraviolet light 2 minutes, from irradiation terminate have passed through 5 minutes
The positioning for carrying out joint test piece afterwards, being heated and pressurizeed at 120 DEG C of temperature and pressure 30MPa 1 hour, it is mutual to come
Engagement.Then, the bond strength of the joint test piece engaged is measured using cupping machine.Respective engagement is strong
Degree is that columnar alignment H is that 10.0MPa, columnar alignment I are 3.8MPa.According to this as a result, can confirm: by using as ultraviolet light
Vacuum-ultraviolet light, to can get higher bond strength.
In addition, in fig. 8, it is identical as composition used in measured value a, relative to by by 30 matter of glass fibre
It is added in the PBT resin (Win Tech Polymer Co. Ltd. system Duranex (registered trademark) 3300) that amount % is enhanced
Combination after bisphenol A type epoxy resin (Mitsubishi chemical Co., Ltd Epikote (registered trademark) JER1004K) 1.5 mass %
The joint test piece of object composition, difference illumination wavelength 172nm, illumination 6mW/cm2Vacuum-ultraviolet light or wavelength 254nm, shine
Spend 6mW/cm2Ultraviolet light after, show the contact angle by distilled water after a certain period of time.Before columnar alignment J expression irradiation,
By 3 hours after 5 minutes, columnar alignment L indicate the irradiation of vacuum-ultraviolet light after the irradiation of columnar alignment K expression vacuum-ultraviolet light
Contact angle.As comparative example, by 5 minutes after the irradiation of columnar alignment M expression ultraviolet light, columnar alignment N indicates the photograph of ultraviolet light
By 3 hours contact angles after penetrating.
According to this as a result, can confirm: the vacuum-ultraviolet light of wavelength 172nm and the ultraviolet light of wavelength 254nm are passing through
It crosses at 5 minutes time points, is compared with about 70 degree of the contact angle before irradiation (columnar alignment J), although contact angle becomes smaller to 40
Degree left and right (columnar alignment K, M), but by 3 hours time points, the vacuum-ultraviolet light of wavelength 172nm is about 40 degree of contact angle, with
After just irradiating identical (columnar alignment L), in contrast, the ultraviolet light of wavelength 254nm connects at the time point by 1 hour
Feeler is greatly to about 50 degree (columnar alignment N).
Therefore, compared with ultraviolet light, using vacuum-ultraviolet light, it is believed that the shape that surface can be activated
State maintains longer, to can get high bond strength in the case that the time of positioning process after irradiation is long.
Further, it is also possible to confirm: as the absolute value of contact angle, the vacuum-ultraviolet light of wavelength 172nm not only passes through 5 after irradiation
The time point of minute, and pass through 3 hours time points after irradiation, by 5 points after the irradiation with the ultraviolet light of wavelength 254nm
The time point (columnar alignment M) of clock is small compared to contact angle, and surface becomes the state (columnar alignment L) being further activated.On here,
The contact angle for the water stated is, after being cleaned with ethyl alcohol to joint test piece surface, the vacuum of difference illumination wavelength 172nm
Ultraviolet light 2 minutes of ultraviolet light or wavelength 254nm, and after a predetermined time, it drips to the shadow surface for remaining horizontal
Distilled water, and the contact angle is measured using consonance interface science society FACE contact angle meter CA-DT.
In addition, by joint test piece used in the measurement of columnar alignment A in the Vertical Square vertical relative to joint surface
It is cut off upwards, and carries out the cross-section observation on joint portion periphery using electron microscope, the results are shown in Fig. 9.Similarly,
For used in columnar alignment A by PPS resin (Polyplastics Co., Ltd. DURAFIDE (registered trademark) 0220A9)
In be added to the composition of the composition after 30 mass % of glass fibre the first molded product and the second molded product it is viscous using epoxy
Joint test piece made of mixture is engaged with by vibration deposition in the way of engaged made of joint test piece, carry out
The cross-section observation on joint portion periphery, result are shown in Figure 10 and Figure 11.
It can be confirmed according to Figure 10: joint test piece made of being engaged using epoxy adhesive, at joint portion
There are the layers of the adhesive at interface.In addition, can be confirmed according to Figure 11: being connect made of being engaged in the way of vibration deposition
Test film is closed, generates gap (the visible whiting portion in photo median surface portion both ends) at the interface at joint portion.In contrast, by Fig. 9
Ultraviolet light realize engagement, can confirm: the first molded product is bonded each other with the surface of the second molded product, and is not produced
Raw gap.
The case where being directed to as comparative example only to one of irradiation ultraviolet light of the first molded product and the second molded product
Under discuss.Here, in addition to only to the first molded product carry out ultraviolet light irradiation without to the second molded product be irradiated with
Outside, identical as the broken line b in Fig. 4, the first molded product and the second molded product are that use is strengthened by 30 mass % of glass fibre
Polybutylene terephthalate (PBT) (PBT) resin (Win Tech Polymer Co. Ltd. system Duranex (registered trademark)
3300) resin, in illumination wavelength 172nm, illumination 6mW/cm2Vacuum-ultraviolet light 2 minutes after to being positioned within 5 minutes,
Later, it is heated and is pressurizeed at 120 DEG C of temperature and pressure 30MPa, and maintained 1 hour, bond strength 0MPa.
I.e., can confirm: ultraviolet light can not only be obtained to the irradiation of one of them of the first molded product and the second molded product and adequately be connect
It closes.
Symbol description
101First molded product；
102Second molded product；
31 first punch components；
32 second punch components.
Claims (4)
1. a kind of joint method of synthetic resin, to containing thermoplasticity crystalline resin and with polar functional group
The synthetic resin of the resin combination of compound and/or elastomer composition is engaged, comprising the following steps:
First molded product and the second molded product are provided；
Respectively to the predetermined irradiation area irradiating ultraviolet light on the surface of first molded product and second molded product；
The opposed contact of the irradiation area is positioned such that first molded product and second molded product；And
It is pressurizeed to first molded product and second molded product so that first molded product and described second
Molded product engages in respective irradiation area.
2. joint method as described in claim 1, which is characterized in that
The ultraviolet light irradiates 10 minutes time below to first molded product and second molded product.
3. joint method as described in claim 1, which is characterized in that
First molded product and second molded product include respectively opposed faces on surface, and the irradiation area includes described
At least part of opposed faces.
4. joint method as claimed any one in claims 1 to 3, which is characterized in that
The thermoplasticity crystalline resin contains polyformaldehyde, polybutylene terephthalate (PBT), polyethylene terephthalate
Ester, polyphenylene sulfide or liquid crystal polymer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-138523 | 2016-07-13 | ||
| JP2016138523 | 2016-07-13 | ||
| PCT/JP2017/025428 WO2018012543A1 (en) | 2016-07-13 | 2017-07-12 | Joining method for resin molded articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109476090A true CN109476090A (en) | 2019-03-15 |
| CN109476090B CN109476090B (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780043290.XA Active CN109476090B (en) | 2016-07-13 | 2017-07-12 | Method for joining resin molded articles |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6793195B2 (en) |
| CN (1) | CN109476090B (en) |
| WO (1) | WO2018012543A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756647A (en) * | 2003-03-07 | 2006-04-05 | 株式会社可乐丽 | Method for adhering plastic |
| JP2012232446A (en) * | 2011-04-28 | 2012-11-29 | Dainippon Printing Co Ltd | Laminate and method for manufacturing the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3132595B2 (en) * | 1991-03-27 | 2001-02-05 | ナガセケムテックス株式会社 | Method for bonding plastic molded articles and resin sealing method for electric / electronic parts |
| JP3313788B2 (en) * | 1992-12-02 | 2002-08-12 | 株式会社リコー | Joining method |
| JP2003191387A (en) * | 2001-12-27 | 2003-07-08 | Mitsubishi Engineering Plastics Corp | Composite molded body and method for manufacturing it |
| JP2003220667A (en) * | 2002-01-31 | 2003-08-05 | Mitsubishi Engineering Plastics Corp | Composite molded product and method of manufacture thereof |
| JP5063932B2 (en) * | 2006-05-17 | 2012-10-31 | 藤森工業株式会社 | Laminated film and method for producing laminated film |
| JP4687747B2 (en) * | 2007-06-18 | 2011-05-25 | セイコーエプソン株式会社 | Joining method |
| JP6017933B2 (en) * | 2011-12-22 | 2016-11-02 | 信越化学工業株式会社 | Composite and production method thereof |
-
2017
- 2017-07-12 WO PCT/JP2017/025428 patent/WO2018012543A1/en active Application Filing
- 2017-07-12 CN CN201780043290.XA patent/CN109476090B/en active Active
- 2017-07-12 JP JP2018527636A patent/JP6793195B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756647A (en) * | 2003-03-07 | 2006-04-05 | 株式会社可乐丽 | Method for adhering plastic |
| JP2012232446A (en) * | 2011-04-28 | 2012-11-29 | Dainippon Printing Co Ltd | Laminate and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109476090B (en) | 2021-08-06 |
| JP6793195B2 (en) | 2020-12-02 |
| WO2018012543A1 (en) | 2018-01-18 |
| JPWO2018012543A1 (en) | 2019-04-25 |
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