WO2012137338A1 - 樹脂材料、並びにその製造方法、その修復方法及びそれを用いた各部材 - Google Patents
樹脂材料、並びにその製造方法、その修復方法及びそれを用いた各部材 Download PDFInfo
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- WO2012137338A1 WO2012137338A1 PCT/JP2011/058831 JP2011058831W WO2012137338A1 WO 2012137338 A1 WO2012137338 A1 WO 2012137338A1 JP 2011058831 W JP2011058831 W JP 2011058831W WO 2012137338 A1 WO2012137338 A1 WO 2012137338A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/52—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides selected from boron, aluminium, gallium, indium, thallium or rare earths
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/02—Polymerisation in bulk
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/447—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from acrylic compounds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/448—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from other vinyl compounds
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2438/00—Living radical polymerisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45147—Copper (Cu) as principal constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00011—Not relevant to the scope of the group, the symbol of which is combined with the symbol of this group
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
Definitions
- the present invention relates to a resin material, a manufacturing method thereof, a repairing method thereof, and respective members using the same.
- Materials used for products, parts, etc. are selected considering the characteristics of each material in light of required functions, strength, usage environment, etc.
- the material is damaged, deformed, deteriorated, and embrittled from the outside, and eventually breaks down.
- a so-called “material lifetime” usually exists in any material. Therefore, in order to ensure the type of structure, the safety and reliability of the equipment, etc., it is extremely important to select a material with a long life, and it is particularly important to select a material that takes into consideration the use environment, service life, etc. It becomes important.
- organic materials mainly composed of hydrocarbons such as resin materials usually have lower strength than inorganic materials composed of metals, ceramics, etc., and thus are easily damaged and deformed.
- organic materials such as resin materials cause irreversible modification accompanied by a decrease in mass, decomposition at the molecular level, etc. due to deterioration, and it is usually difficult to return an organic material having such deterioration to its original state. is there.
- the high-functional resin material is a material having high heat resistance and high strength, it is difficult to process the material, and the energy consumption during production, disposal, and recycling is usually larger than that of conventional general-purpose resins. This phenomenon is the result of a design that “resists” the resin material against an external force, and can be said to be a price for high strength, high heat resistance, and long life.
- the resin material is damaged and deformed by applying a force larger than the allowable external force. And the damaged part which arises in this way becomes easily fragile like the conventional resin material, and it is usually difficult to return the structure once destroyed as mentioned above to the original structure.
- Patent Document 1 includes a polymer, a polymerization agent, a protected corresponding activator for the polymerization agent, and a plurality of capsules, the polymerization agent is in the capsule, and the corresponding activator is the polymer and polymerization.
- a composite material is described which is protected with a corresponding encapsulating agent for the agent.
- Patent document 2 describes a composite material comprising a plurality of capsules comprising a polymer matrix, a polymerizing agent and a corresponding activator for the polymerizing agent.
- Patent Document 3 and Non-Patent Document 1 describe polymerization initiators that utilize living polymerization.
- Patent Document 4 describes a resin material in which a monomer is included as a polymerization agent in a shell.
- Patent Document 5 describes a repairable microcapsule containing a polymer-based repair agent.
- the techniques described in the prior art documents have the following problems. That is, in the technique described in the prior art document, the resin material strength after repair is still insufficient. Therefore, when the member using the conventional resin material is manufactured, there exists a subject that durability with respect to the stress from the outside of the manufactured member is still low.
- a repair function is provided by contact between the catalyst and the polymerization agent in the microcapsule.
- a uniform and sufficient amount of the catalyst in the resin material is provided. Sometimes it must be dispersed. However, such dispersion (combination) of an excessive amount of catalyst may cause a decrease in the function (for example, strength, glass transition temperature, etc.) of the resin material.
- the resin filling the fracture portion is a cured product of a polymerizer (specifically, a ring-opening metathesis polymer of polydimethylsiloxane, polysiloxane), and a heterogeneous interface is formed between the base material and the restoration portion. Therefore, interfacial peeling is likely to occur, and sufficient resin strength and heat resistance cannot be imparted to the repaired portion.
- the present invention has been made in view of the above-mentioned problems, and its object is to provide a resin material having improved strength and heat resistance after repair at the time of breakage, as well as its production method, its repair method, and it It is in providing each member using.
- the present invention it is possible to provide a resin material whose strength and heat resistance after repair at the time of fracture are improved as compared to the conventional one, a manufacturing method thereof, a repair method thereof, and each member using the same.
- this embodiment for implementing this invention is not limited to the following content, In the range which does not impair the summary of this invention, it implements arbitrarily. Is possible.
- the resin material according to the present embodiment includes a resin obtained by living radical polymerization of an unsaturated monomer that can be polymerized by a radical polymerization initiator.
- a radical polymerization initiator At the time of breaking, when there is a site where radical polymerization can be initiated on the fracture surface generated at the time of breaking, and when the unsaturated monomer capable of radical polymerization comes into contact with the site, radical polymerization of the unsaturated monomer to the site Has a self-repairing function.
- the unsaturated monomer constituting the resin material according to the present embodiment is not particularly limited as long as it is an unsaturated monomer having an unsaturated bond and capable of radical polymerization. That is, the resin material according to the present embodiment is obtained by radical polymerization of any known unsaturated monomer capable of radical polymerization.
- unsaturated monomer constituting the resin material refers to an unsaturated monomer that forms a repeating unit in the resin material when the unsaturated monomer is polymerized to form the resin material.
- unsaturated monomer constituting polystyrene as the resin material is styrene.
- the resin material is a copolymer such as a block polymer.
- the copolymer is, for example, a random copolymer, the repeating unit as described above may not occur.
- the unsaturated monomer used in producing the resin material is “ It shall be treated as “unsaturated monomer constituting the resin material”.
- unsaturated monomers include styrene, ⁇ -methylstyrene, o-methylstyrene, m-methoxystyrene, o-chlorostyrene, m-chlorostyrene, N, N-dimethyl-p-aminostyrene, Aromatic vinyl compounds such as divinylbenzene; alkyl (meth) such as methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl acrylate, n-butyl acrylate, 2-ethylhexyl (meth) acrylate, stearyl (meth) acrylate Acrylate; Unsaturated monocarboxylic acid ester such as methyl crotonate, ethyl crotonate, methyl cinnamate, ethyl cinnamate; trifluoroethyl (meth) acrylate, pentafluoroe
- the unsaturated monomer applicable to the resin material according to the present embodiment include an aromatic vinyl compound, an alkyl (meth) acrylate, an unsaturated monocarboxylic acid ester, and a fluoroalkyl (meth).
- Acrylate siloxanyl compound, mono- or di- (meth) acrylate of alkylene glycol, alkoxyalkyl (meth) acrylate, cyanoalkyl (meth) acrylate, cyano compound, oligo (meth) acrylate of polyhydric alcohol, hydroxyalkyl (meth) Acrylate, hydroxyalkyl ester of unsaturated carboxylic acid, unsaturated alcohol, unsaturated (mono) carboxylic acid, unsaturated polycarboxylic acid or unsaturated polycarboxylic acid anhydride, unsaturated polycarboxylic acid or unsaturated polycarboxylic acid Mono- or diesters, epoxy group-containing unsaturated compound of the object, diene compounds, vinyl chloride, vinyl acetate, sodium isoprene sulfonate, cinnamic acid esters, crotonic acid esters, dicyclopentadiene, ethylidene norbornene and the like.
- these unsaturated monomers may be substituted with an arbitrary substituent as necessary.
- the radical polymerization initiator used when producing the resin material according to the present embodiment is not particularly limited as long as it is a compound capable of performing living radical polymerization on the unsaturated monomer.
- alkylborane is particularly preferable as a radical polymerization initiator that can be used in the present embodiment.
- alkylborane is not particularly limited.
- alkoxyborane such as diethylmethoxyborane, trimethoxyborane, tri-n-butoxyborane, catecholborane; triethylborane, triphenylborane, tri-n- And trialkylboranes such as butylborane, tri-sec-butylborane and tri-tert-butylborane; and dialkylboranes such as siamilborane and bicyclo [3.3.1] nona-9-borane (9-BBN).
- diethylmethoxyborane and 9-BBN are more preferable, and diethylmethoxyborane is particularly preferable. These may be substituted with one or more arbitrary substituents.
- radical polymerization initiator may be used alone, or two or more types may be used in any ratio and combination.
- the resin material which concerns on this embodiment can be obtained by carrying out living radical polymerization of an unsaturated monomer using a radical polymerization initiator as mentioned above.
- a radical polymerization initiator as mentioned above.
- the living radical polymerization may be performed by any known method for the living radical polymerization reaction.
- the radical polymerization initiator concentration is preferably 1% by mass or more based on the amount of the unsaturated monomer.
- the polymerization temperature and polymerization atmosphere during living radical polymerization are not particularly limited. However, since it differs depending on, for example, the type and amount of the unsaturated monomer and the type of the radical polymerization initiator, for example, the polymerization is performed for about 1 hour to 3 hours at a temperature of about 60 ° C. to 120 ° C. By performing, the resin material which concerns on this embodiment can be obtained.
- the temperature during the polymerization does not always need to be maintained at a constant temperature during the polymerization, and the polymerization may be carried out by changing as necessary.
- the atmosphere during the polymerization is not particularly limited, but for example, the polymerization can be performed in the air (in an air atmosphere).
- the physical properties of the resin material according to this embodiment are not particularly limited as long as it has the self-repair function. Accordingly, the resin material according to the present embodiment may be, for example, a thermoplastic resin or a thermosetting resin. Therefore, since the physical properties of the resin material are usually determined based on the type of unsaturated monomer, the type of unsaturated monomer may be determined so that the obtained resin material has desired physical properties.
- the physical properties of the resin material change compared to the case where a single unsaturated monomer is polymerized.
- the resulting resin material becomes a copolymer.
- a random copolymer, an alternating copolymer, a block copolymer There are forms of polymerization such as coalescence and graft copolymer. And even if it depends on the form of such superposition
- the self-healing function when the resin material obtained by the above-described raw materials and production method obtained by the study of the present inventors breaks will be described with reference to the drawings.
- the self-healing function means that, when broken, there is a site capable of initiating radical polymerization on the fracture surface generated at the time of breaking, and when the unsaturated monomer capable of radical polymerization comes into contact with the site. In addition, the radical polymerization of the unsaturated monomer with respect to the site is performed.
- a polymerization catalyst such as a Grubbs catalyst or an organometallic catalyst needs to be separately combined in the resin material in order to perform a polymerization reaction of the polymerization agent (see the above-mentioned prior art document). ). Further, for the purpose of maintaining the activity of the polymerization catalyst, for example, it is necessary to coat the polymerization catalyst by wax, encapsulation or the like, so that the operation is complicated and difficult to handle.
- the repaired portion of the resin material does not provide sufficient resin strength, and low resin strength after repair is also a problem.
- the present inventors have studied from the above viewpoint, and are a simple system in which the number of materials required for repair is small and equivalent resin strength and glass transition temperature (index of heat resistance) before and after the repair. ) was developed.
- an index of a resin material having a repair function (1) a resin material system having a novel repair function capable of repairing a damaged portion (fracture portion), and (2) a small number of materials necessary for repair ( Pay attention to three items: simple material system (not included) and (3) resin material system that shows comparable resin strength and glass transition temperature before and after repair, and self by radical polymerization resin showing living property It came to find the repair function.
- the resin material according to the present embodiment when a fracture surface generated at the time of fracture is exposed to air, radical polymerization terminals existing (formed) on the surface of the fracture surface are activated, and a polymerization reaction occurs on the fracture surface. Shows sex. Note that the “fracture surface” specifically occurs when the resin material is damaged, deformed, broken, scratched, broken, lacerated, cut, torn, deteriorated, decomposed, molded, film-formed, or the like.
- radical polymerization is induced by supplying a polymerization agent to the generated fracture surface, and radical polymerization of the unsaturated monomer contained in the polymerization agent and the radical polymerization terminal existing on the fracture surface proceeds.
- a new resin repair film is formed at the fracture surface.
- the “supply” of the polymerizing agent specifically represents application, injection, dipping, spraying; printing, transfer, sticking, etc. using a roll or the like, and particularly preferably application, injection, dipping.
- a catalyst for polymerization is dispersed in a resin material in advance, but in this embodiment, repolymerization of dormant species that are living radical polymerization end groups of the resin material is used. Therefore, it is not necessary to contain a catalyst in the resin member, the polymerization agent, or the like. Further, it is considered that dormant species are included in the entire region of the resin material, and self-repair is possible even if the resin material breaks at any portion. Therefore, from this point of view, dispersion of the polymerization catalyst or the like in the resin material is unnecessary. That is, according to the present embodiment, the self-repair function can be imparted to the resin material without causing the above problems.
- the self-healing function will be described with reference to FIG.
- the polymeric agent 4 containing an unsaturated monomer is apply
- radical polymerization occurs between the polymerization agent existing between the two fracture surfaces 1a and 1a and the fracture surface 1a, and a new resin repair film 5 is formed inside the crack 1 (FIG. 1 (c). )).
- the polymerization rate can be accelerated by heating the resin material 2 containing the polymerization agent 4. As a result, it can be cured more quickly by heating. Moreover, it becomes possible to harden more firmly by heating.
- the resin coating film 5 formed in this way is the resin material 2 after a repair.
- the resin strength and glass transition temperature are approximately the same as the resin strength and glass transition temperature of the resin material 2 before repair.
- the reduction rate of the strength of the resin material after repair (that is, the resin strength) is usually within 10%, preferably within 5%, more preferably within 1% of the strength of the resin material before repair.
- the strength of the resin material can be measured by, for example, a precision universal testing machine autograph (AGS-100G manufactured by Shimadzu Corporation).
- the glass transition temperature decrease rate by thermomechanical property analysis after repair is usually within 10%, preferably within 5%, more preferably within 1%. This is because the living radical polymerization terminal existing on the surface of the fracture surface 1a and the unsaturated polymer in the polymerization agent 4 are integrated by polymerization, and the same chemical structure as that of the resin material before repair is reproduced. Presumed.
- the thermomechanical property analysis can be performed using, for example, a thermomechanical analyzer TM-9300 manufactured by ULVAC.
- the unsaturated monomer contained in the polymerization agent 4 may be the same as or different from the unsaturated monomer constituting the resin material 2. Even when the unsaturated monomer contained in the polymerization agent 4 and the unsaturated monomer constituting the resin material 2 are different from each other, the same effects as those obtained when they are the same are exhibited. However, it is also preferable that the unsaturated monomer contained in the polymerization agent 4 and the unsaturated monomer constituting the resin material 2 are the same. When an unsaturated monomer different from the unsaturated monomer constituting the resin material 2 is used as the unsaturated monomer contained in the polymerizing agent 4, the unsaturated monomer contained in the polymerizing agent 4 constitutes the resin material 2. It is preferable that it is easy to copolymerize with an unsaturated monomer.
- the viscosity of the polymerization agent 4 is not particularly limited, but is preferably 0.001 Pa ⁇ s or more, more preferably 0.005 Pa ⁇ s or more, The upper limit is preferably 1 Pa ⁇ s or less, more preferably 0.1 Pa ⁇ s or less. If the viscosity is too small, the polymer agent 4 may flow out of the resin material 2 without being held in the crack 1, and if the viscosity is too large, the polymer agent 4 may not be sufficiently diffused into the crack 1. There is.
- the polymerizer 4 may contain a component that induces radical polymerization such as a radical generator or a radical polymerization initiator, but it is particularly preferable that the component is not included. Since such a component is not contained in the polymerizer 4, radical polymerization can be caused only when the unsaturated monomer contained in the polymerizer 4 comes into contact with the fracture surface 1a, and the resin restoration layer is more reliably and firmly formed. 5 can be formed.
- a component that induces radical polymerization such as a radical generator or a radical polymerization initiator
- the radical polymerization initiator repeats hydroboration and auto-oxidation. It was.
- the radical growth terminal forms a stable covalent bond species (dormant species), and it is considered that polymerization proceeds while reversibly generating radicals. Therefore, as long as the dormant species can be maintained, the growth terminal does not lose activity and can be repolymerized.
- the resin material obtained by living radical polymerization has an excellent self-healing function using such living radical properties, and is considered to be a great progress toward extending the life of the resin material.
- a polymer-containing capsule (container) 6 containing the polymer 4 is dispersed (composited) in the resin material 2 in advance. That is, before the crack 1 is generated in the resin material 2, the resin material 2 and the polymerizing agent 4 are not in contact with each other by the film constituting the polymerizing agent-encapsulating capsule 6. And in such a resin material 2, when the crack 1 arises, the fracture surface 1a reaches
- the polymerizing agent 4 is encapsulated.
- the polymer-encapsulating capsule 6 has a particle shape, and the average particle size is preferably 10 nm or more, more preferably 30 nm or more, and still more preferably. 50 nm or more, and the upper limit thereof is preferably 1 mm or less, more preferably 500 ⁇ m or less, and still more preferably 300 ⁇ m or less.
- the average particle diameter of the polymer-containing capsule 6 can be measured based on, for example, a photograph taken with a scanning electron microscope (SEM).
- the film thickness of the polymer-encapsulating capsule 6 is not particularly limited, but is preferably 1 nm or more, more preferably 5 nm or more, and the upper limit is preferably 3 ⁇ m or less, more preferably 1 ⁇ m or less.
- the capsule may be destroyed when the resin material 2 is manufactured and the capsule is dispersed.
- the film thickness is too thick, even if the crack reaches the capsule, the capsule is not broken, and there is a possibility that the polymerization agent does not leak.
- the suitable film thickness of the polymer-containing capsule 6 varies depending on the type of the resin material 2, it cannot be generally stated, and may be appropriately changed according to the conditions in accordance with the self-repair function and the required performance.
- the surface of the polymer-encapsulating capsule 6 may be treated with a coupling agent or the like as necessary.
- a hollow capsule is used as a container containing a polymerization agent.
- a tube-type glass capillary container, a hollow film layer or the like sealed at both ends is used as a polymerization agent.
- the embodiment using the capsule shown in FIG. 2 is particularly preferable from the viewpoint that it can be easily manufactured by a submerged drying method.
- the polymer encapsulating capsule 6 includes (1) a step (emulsion preparation step) of preparing a water phase oil droplet type emulsion (O / W; a state in which oil droplets are dispersed in water), and (2) from the emulsion.
- the organic phase (oil droplets) is produced mainly through a step of removing an organic solvent (in-liquid drying step) and (3) a filtration, washing and drying step.
- Emulsion preparation step In this step, a polymerization agent, a film-forming material for encapsulating the polymerization agent, an organic solution comprising an organic phase containing an organic solvent, and an aqueous solution comprising an aqueous phase in which a dispersant is dissolved are mixed to prepare an O / W type emulsion.
- a stabilizer, a curing accelerator and the like are added to the organic phase as necessary.
- the film-forming material contained in the organic solution is not particularly limited.
- resin materials such as polymethyl methacrylate, cured melamine resin, cured urea resin, cured epoxy resin; silica, alumina, etc.
- An inorganic material etc. are mentioned.
- the organic solvent is not particularly limited, and examples thereof include isooctane, dichloromethane, dichloroethane, and ethyl acetate.
- limit especially as a dispersing agent and the hardening accelerator added as needed For example, sorbitan monooleate etc. are mentioned.
- each said compound may be used individually by 1 type, and 2 or more types may be used by arbitrary ratios and combinations.
- the dispersant contained in the aqueous solution is not particularly limited.
- the amount of the polymerizing agent and other components in preparing the emulsion, the stirring time, the stirring and mixing conditions such as the stirring device are not particularly limited, and the oil droplet size is desired (for example, the particle size is several tens of times). What is necessary is just to determine suitably so that it may become (micrometer-about several mm). Then, by mixing the polymerizer, the organic solution and the aqueous solution with stirring, oil droplets can be dispersed in the aqueous solution.
- the oil droplets contain the polymerization agent, and the surface of the oil droplets is covered with the film forming material.
- the emulsion is depressurized at a predetermined temperature (for example, about 35 ° C.) (for example, about 30 kPa in absolute pressure), and the organic solvent in the oil droplets is removed for 3 to 24 hours. Remove gradually over time. And when the magnitude
- the solution containing the aggregated emulsion obtained in the submerged drying step is centrifuged to separate oil droplets.
- the oil droplets can be separated by filtration, for example.
- the separated oil droplets are washed using, for example, a 0.5 M hydrochloric acid aqueous solution or the like to remove deposits such as a dispersant.
- a polymer-encapsulating capsule 6 in which the polymerizing agent 4 is encapsulated can be obtained.
- the polymer encapsulating capsule 6 thus obtained, the radical polymerization initiator, and the unsaturated monomer constituting the resin material 2 are mixed, and the unsaturated monomer constituting the resin material 2 is then allowed to live.
- the resin material 2 shown in FIG. 2 can be formed by radical polymerization. When the resin material 2 thus formed breaks, the polymer 4 contained in the polymer-encapsulating capsule 6 leaks into the crack 1, and the resin repair film 5 is formed.
- microcracks are vulnerable to sudden heat changes, and microcracks may occur due to repeated heat changes. Microcracks grow into larger cracks when they are combined, leading to damage and destruction of the resin material. Also, micro cracks are difficult to see and once found, they are difficult to find and repair. However, in the resin material according to the present embodiment, since such a microcrack is self-repaired, there is very little possibility of growth, damage and destruction to the larger crack, which is very It is a useful resin material.
- the use of the resin material according to the present embodiment is not particularly limited, but for example, parts used under conditions of external damage or severe temperature changes, specifically cable coating materials, mold sealing materials, etc.
- resin materials for space development such as satellite rockets, members such as artificial organs, structural materials used for aircraft, railways, automobiles, ships, building materials, etc. It can be applied in a very wide range of fields involving resin materials such as a film having a repair function applicable to a protective layer of a display device or the like.
- the resin material according to the present embodiment may be either a thermosetting resin or a thermoplastic resin.
- the resin strength is restored to the same level as before damage by performing repair through living radical polymerization of the damaged part.
- thermosetting resins have poor processability
- conventional thermosetting resin repair technologies use repair materials such as paint, glue, adhesives, and putty materials as a method of repairing damaged parts. It was limited to the method of protecting and fixing the damaged part used.
- repair materials such as paint, glue, adhesives, and putty materials
- the resin material according to the present embodiment can be used as a composite material by combining with other resins (polymer alloy), mixing with an inorganic material, forming a composite, or the like.
- resins polymer alloy
- various functions such as scratch resistance, weather resistance, low thermal expansion coefficient, etc. in addition to functions that the resin material alone lacks, such as material strength and heat resistance, are required. Can be applied to the resin material. Therefore, the use of such a composite material is greatly expanded.
- the type of material to be combined is not particularly limited, and can be applied to any material.
- the resin materials are bonded to each other by applying an unsaturated monomer to the surface of the resin material. Therefore, by utilizing the self-healing function of the resin material according to the present embodiment, the present invention is not limited to the repair on the surface of the resin material, and can be applied as a new joining technique between the resin materials.
- a structure such as a model or a housing can be formed.
- the structure has a function of integrating the molecular structure by living radical polymerization via a polymerizing agent, and cannot be obtained by bonding and bonding using conventional adhesives. A joined structure is obtained.
- a polymerizing agent 4 is applied using a dropper 3 to both end faces of two resin materials 2 obtained by living radical polymerization. And as shown in FIG.2 (b), the surfaces where the polymerizing agent 4 was apply
- the formed bonding layer 7 is formed integrally with the two resin materials 2 and 2 by a covalent bond, and the resin material formed by bonding the two resin materials is very It has strong strength.
- [3-1. Cable and cable covering material] 4A and 4B are diagrams schematically showing a stepped structure of a cable including the resin material according to the present embodiment.
- the resin material according to this embodiment is used for the coating layer 20.
- the resin material according to the present embodiment is used for the insulating layer 21. That is, all the resin materials according to the present embodiment are used as cable covering materials.
- the polymer agent inclusion capsule (not shown in FIG. 4) demonstrated in FIG. 2 may be disperse
- the cable 100 shown in FIG. 4A includes a conductor 13, an internal semiconductor layer 14, an insulating layer 15, an external semiconductor layer (adhesion layer) 16, an external semiconductor layer (release layer) 17, and a covering layer 20.
- the outer skin layer 19 is provided.
- arbitrary good conductors such as copper and aluminum, can be used.
- the form of the conductor 13 is not particularly limited, and any known form such as a solid (solid) line or a stranded line can be used.
- the cross-sectional shape of the conductor 13 is not particularly limited, and may be, for example, a circle, a divided circle, or a compression shape.
- the material and form of the internal semiconductive layer 14 there are no particular limitations on the material and form of the internal semiconductive layer 14, and any known material may be used.
- the material constituting the insulating layer 15 and the form thereof are not particularly limited, but for example, oil-immersed paper-based, oil-immersed semi-synthetic paper-based material, rubber material, resin material, etc. can be used.
- insulating materials such as rubber materials and resin materials include ethylene-propylene rubber, butyl rubber, polypropylene, thermoplastic elastomer, polyethylene, cross-linked unsaturated polyethylene, and the like, from the viewpoint that they are widely used in insulated cables.
- polyethylene and cross-linked polyethylene are preferable.
- the outer semiconductive layer (adhesion layer) 16 is provided for the purpose of relaxing a strong electric field generated around the conductor 13.
- a material used for the outer semiconductive layer (adhesion layer) 16 for example, 20% by mass to 70% by mass of conductive carbon black is blended in a resin material such as a styrene-butadiene thermoplastic elastomer, a polyester elastomer, or a soft polyolefin. Examples thereof include semiconductive resin compositions, and conductive paints added with 20% by mass to 70% by mass of conductive carbon.
- the material is not particularly limited as long as it satisfies the required performance.
- the method for forming the external semiconductive layer (adhesion layer) 16 on the surface of the insulating layer 15 is not particularly limited, and examples thereof include continuous extrusion, dipping, spray coating, and coating depending on the type of member.
- the outer semiconductive layer (peeling layer) 17 is provided for the purpose of relaxing the strong electric field generated around the conductor 13 and protecting the inner layer, like the outer semiconductive layer (adhesion layer) 16. Moreover, in construction, such as connection, what is necessary is just to peel easily with respect to the external semiconductive layer (adhesion layer) 16, and other layers may intervene.
- the material used for the external semiconductive layer (peeling layer) 17 include at least one of rubber materials such as soft polyolefin, ethylene-propylene rubber, and butyl rubber, styrene-butadiene thermoplastic elastomer, and polyester elastomer.
- Examples thereof include a crosslinkable or non-crosslinkable resin composition containing 30 to 100 parts by mass of conductive carbon black per 100 parts by mass of the base material to be included.
- the material is not particularly limited as long as it satisfies the required performance.
- additives such as fillers, such as a graphite, a lubrication agent, a metal, an inorganic filler, may be contained suitably as needed.
- the method of forming the external semiconductive layer (peeling layer) 17 on the surface of the external semiconductive layer (adhesion layer) 16 is not particularly limited, but extrusion molding is suitable.
- the resin material according to the present embodiment is used for the covering layer 2. Since the resin material according to the present embodiment is as described above, the description thereof is omitted.
- the outer skin layer 19 can be made of any known material and is not particularly limited by the type of the material.
- the cable 101 shown in FIG. 9 (b) is a cable that does not require the peeling mechanism of the cable 100 shown in FIG. 9 (a). Therefore, the cable 101 has only one outer semiconductive layer (adhesion layer) 16. Note that members having the same function in the cable 100 and the cable 101 are denoted by the same reference numerals, and detailed description thereof is omitted.
- the covering layer 18 is made of, for example, a resin material, and is made of any known material.
- the insulating layer 21 is made of the resin material according to the present embodiment as described above, and includes the polymer-encapsulating capsule described with reference to FIG.
- Both the specific examples of the cables 100 and 101 have the same resin strength and heat resistance as those of conventionally used coating materials.
- damage to the resin material such as the outside during manufacturing, cable use, scratches due to rubbing between cables, micro cracks due to rapid thermal changes, etc.
- By performing an appropriate repair process it is possible to maintain the same performance as before the damage in terms of the resin strength and heat resistance of the damaged part.
- FIG. 5A shows a DIP (Dual Inline Package) 200 as a specific example of an electronic component package to which the resin material according to the present embodiment including the polymer-encapsulating capsule shown in FIG. 2 is applied as a mold sealing material.
- FIG. 5B is a sectional view taken along line AA of the DIP 200 shown in FIG.
- a DIP 200 shown in FIG. 5 includes a semiconductor element 24 disposed on a base material 24a, lead frames 22 and 22 extending to the outside of the mold sealing material 23, lead frames 22 and 22, and the semiconductor elements 24 and the lead frame. It is comprised by the bonding wires 25 and 25 which connect 22 and 22 electrically. Then, a part of the lead frames 22, 22, the semiconductor element 24, the base material 24 a, and the bonding wires 25, 25 are molded with a resin material according to this embodiment including the polymer encapsulating capsule shown in FIG. It is sealed with a material.
- the lead frames 22 and 22 and the bonding frames 25 and 25 are all made of a good conductor, specifically made of, for example, copper or aluminum. Further, the forms of the lead frames 22 and 22 and the bonding frames 25 and 25 can be any known forms such as solid (solid) wires and stranded wires.
- the shape of the semiconductor element 24 for example, a circular shape, a divided circular shape, a compressed shape or the like can be applied.
- the material constituting the semiconductor element 24 is not particularly limited as long as it is a material that can be sealed with the mold sealing material 23.
- the mold sealing material 23 in the DIP 200 maintains the same resin strength and heat resistance as conventional materials.
- damage to the resin material such as damage due to impact on the circuit, microcrack generation due to rapid thermal change accompanying heat generation of the circuit, etc., by supplying a repair agent from the inside of the resin and appropriate repair processing, It is possible to maintain the resin strength and heat resistance equivalent to those before damage.
- the repair process there is an advantage that the repair is promoted by heat generated by energizing the circuit.
- mold sealing method using the resin material according to the present embodiment. Basically, it is carried out by forming a resin material in the same manner as in the method for producing a resin material according to the present embodiment described above. Specifically, an unsaturated monomer constituting the resin material according to the present embodiment, a radical polymerization initiator, and an organic solvent or the like as necessary are mixed, and the resulting mixture is used to form the semiconductor element 24 or the like. Seal. In this way, the semiconductor element 24 and the like can be sealed.
- the mixture before polymerization can also be used as a potting material for mold sealing (that is, a potting material used for producing a mold sealing material).
- a potting material is used usually containing, for example, an inorganic filler, other resin material, etc. in addition to the above-mentioned components.
- the potting material and the mold sealing material for mold sealing material production include lead frame type packages such as SOP (System On Package), QFP (Quad Flat Package), etc .; BGA (Ball It can also be applied to electronic component packages such as Grid Array) and MCP (Multi Chip Package).
- the application target of the mold sealing material is not limited to a semiconductor component, and can be applied to mold sealing of an electronic component larger than the semiconductor component.
- FIG. 6A is an upper side view of the motor coil protective material 300
- FIG. 6B is a cross-sectional structure of the motor 301 using the motor protective material 300
- FIG. 6B is an axial direction of the rotor magnetic core 32
- FIG. 2B-2 is a cross-sectional view in a direction perpendicular to the axial direction of the rotor magnetic core 32.
- the motor coil 300 includes a magnetic core 26, a coated copper wire 27 wound around the magnetic core 26, a motor coil protective material 28 made of a resin material according to the present embodiment, Consists of. Moreover, the resin material which concerns on this embodiment is uniformly apply
- the magnetic core 26 is made of a metal such as iron, for example. Further, as the coated copper wire 27, an enameled wire having a diameter of 1 mm is used.
- the protective material 28 may include the polymer-encapsulated capsule shown in FIG. 2 as necessary.
- the coil 300 is used in the motor 301 shown in FIG.
- the motor 301 includes a cylindrical stator magnetic core 30 fixed to the inner edge of the motor 301, a rotor magnetic core 32 that rotates coaxially within the stator magnetic core 30, and a slot 31 of the stator magnetic core 30. It consists of eight coils 300 wound with copper wire.
- the motor 301 using the resin material according to the present embodiment maintains the same resin strength and heat resistance as the conventional material.
- external or internal repair agents for damage to resin materials such as damage caused by vibrations and shocks during manufacturing, motor use, etc., and microcracks caused by sudden temperature changes during motor operation and stoppage.
- the resin material portion such as the protective material of the coil 300 is expected to improve the durability of the resin material by its own self-repair function.
- the repair it can be expected that the repair is accelerated by the heat generated by the motor, and in the resin material including the polymer encapsulating capsule shown in FIG. Self-healing is possible.
- the resin material according to the present embodiment can be applied to structural materials such as a housing member, a frame material, a panel material, and a model member. Specific examples of these will be described with reference to FIG.
- FIG. 7 shows an example in which the resin material according to the present embodiment is applied as a member of the casing 34 that constitutes the mobile phone 33.
- the resin material according to the present embodiment used for the casing shown in FIG. 7 includes the polymer-encapsulating capsule shown in FIG.
- the cell phone shown in FIG. 7 maintains the same resin strength and heat resistance as conventional resin materials. Moreover, for damage caused by scratches, deterioration, cracks, etc. during manufacture and use of the housing, the resin strength and heat resistance of the damaged part are the same as before damage by supplying a repair agent from the outside or inside and appropriate repair processing. It becomes possible to maintain performance.
- the structural material to which the resin material according to the present embodiment can be applied is not limited to the housing, and is configured by a resin material such as a frame material, a panel material, a model member, or the like In parts, it is possible to apply in a field in which seamless joining is particularly preferable.
- Example 2 Preparation of Resin Material Using Methyl Methacrylate
- 0.3 g (3% by mass with respect to methyl methacrylate) of diethylmethoxyborane (Aldrich Corporation model number: 347205) was added to 10 g of methyl methacrylate (Tokyo Chemical Industry Co., Ltd. model number: M0087), and the mixture was stirred and mixed with a stirrer. .
- the obtained mixture was heated and cooled in the same manner as in Example 1 to obtain a resin material (2).
- the yield of the obtained resin material (2) was 95%.
- Example 3 Preparation of resin material using vinyl acetate
- the obtained mixture was heated and cooled in the same manner as in Example 1 to obtain a resin material (3).
- the yield of the obtained resin material (3) was 94%.
- Example 4 Preparation of Resin Material (Copolymer) Using Styrene and Maleic Anhydride Diethylmethoxyborane (manufactured by Aldrich) against a mixture of styrene (manufactured by Tokyo Chemical Industry Co., Ltd., model number: S0095) 5.2 g (50 mmol) and maleic anhydride (model number: M0005, manufactured by Tokyo Chemical Industry Co., Ltd.) 4.8 g (50 mmol) : 347205) (3% by mass with respect to the total amount of styrene and maleic anhydride) was added, and the mixture was stirred and mixed with a hot stirrer at 55 ° C. The obtained mixture was heated and cooled in the same manner as in Example 1 to obtain a resin material (4). The yield of the obtained resin material (4) was 95%.
- Example 5 Preparation of resin material (copolymer) using styrene and divinylbenzene] Diethylmethoxyborane (manufactured by Aldrich) against 2.9 g (22 mmol) of styrene (manufactured by Tokyo Chemical Industry Co., Ltd., model number: S0095) and divinylbenzene (80% divinylbenzene, model number: 414565) 2.9 g (22 mmol) : 347205) (3 mass% with respect to the total amount of styrene and divinylbenzene) was added and mixed with stirring by a stirrer. The obtained mixture was heated and cooled in the same manner as in Example 1 to obtain a resin material (5). The yield of the obtained resin material (5) was 97%.
- Example 6 Preparation of Resin Material Consisting of Cured Unsaturated Polyester Varnish 0.15 g (3 for unsaturated polyester varnish) of diethyl methoxyborane (model number: 347205) for 5.0 g of unsaturated polyester varnish (manufactured by Hitachi Chemical Co., Ltd., WP2820GN (unsaturated polyester / styrene mixture)) (Mass%) and stirred and mixed with a stirrer. About the obtained mixture, it heat-cooled similarly to Example 1, and obtained the resin material (6) which consists of a hardened
- the polymerization agent 4 used did not contain any component that induces or accelerates polymerization, such as a peroxide, a radical generator, a Lewis acid, or a polymerization catalyst.
- the fixed resin member 2 was repaired by heating in air in the order of 60 ° C. for 30 minutes, 80 ° C. for 30 minutes, and 120 ° C. for 30 minutes using a baking furnace to obtain a resin material 2 after bonding ((FIG. 8 (E)) Then, the obtained resin material 2 was evaluated for the repair (re-adhesion) behavior of the resin material by the repolymerization reaction.
- the resin material 2 obtained by the repolymerization reaction is processed with a low-speed cutter so that the width is 10 mm, the thickness is 3 to 5 mm, and the length is 30 mm or more to obtain a measurement sample. It used for the tensile strength test.
- the tensile strength test was performed using a precision universal testing machine Autograph (AGS-100G manufactured by Shimadzu Corporation). The position of the resin material having a fracture surface was adjusted so that the fracture surface was at the center of the distance between the spans of the holding arms, and the tensile strength and tensile elongation (elongation) of the resin were measured in the tensile mode.
- the temperature was 25 ° C.
- the tensile speed was 1 mm / min
- the distance between the spans of the samples held on the arm was 10 mm
- the arm gripping distance was 10 to 30 mm.
- the measurement was performed for 10 samples each, and the average value was taken as the measured value.
- the ratio when the breaking strength before re-adhesion was 100% was defined as the tensile strength repair rate, and the repair function was evaluated. That is, the repair rate is a numerical value obtained by dividing the breaking strength after rebonding by the breaking strength before rebonding and multiplying by 100.
- thermomechanical characteristic analyzer TMA; thermomechanical analyzer (TM-9300) manufactured by ULVAC.
- the measurement conditions were all measured at 5 ° C./min in a nitrogen atmosphere.
- Table 1 also shows the tensile strength, elongation, and glass transition temperature of the resin material 2 before breakage.
- the radical polymerization terminal existing on the fracture surface generated by the rupture of the resin material and the unsaturated monomer contained in the polymerization agent are radically polymerized so that the two fracture surfaces are bonded via the radical polymerization. It is thought that this is because the bonding of the resin material that is chemically covalently bonded and microscopically has no interface occurs. That is, it is considered that two fractured surfaces are bonded to each other by a covalent bond with a repeating unit derived from an unsaturated monomer contained in the polymerization agent.
- a peroxide initiator that is widely used as a radical polymerization initiator contributes only to radical generation, and does not form an intermediate structure (dormant species) as found in an alkylborane initiator. Further, the radical growth terminal disappears due to recombination or disproportionation at the end of the polymerization. Therefore, it is considered that the resin materials (7) to (12) obtained in Comparative Examples 1 to 6 did not undergo repolymerization.
- FIG. 9 the state before and after the repair of the resin material (6) made of a cured product of the unsaturated polyester varnish prepared in Example 6 is shown.
- FIG. 9 regardless of the type and structure of the unsaturated monomer constituting the resin material, homopolymer or copolymer, and any property such as thermoplasticity or thermosetting, FIG. Even with the broken resin material as shown in FIG. 9, it was possible to repair the resin material integrally as shown in FIG. In this restoration, it was also found that the support between the fracture surfaces was such that the two resin materials were fixed to each other with a polyimide tape, and no strong external force was required for the restoration.
- Resin material (6) prepared in Example 6 was used as the resin material. And the resin material (6) was re-adhered by the method similar to the method shown in FIG. 8 except having apply
- the resin material is restored (re-adhered), and the resin material shows a restoration function. It was. Although the restoration rate is not shown because the configuration is different from the original resin material, the performance was almost the same as that of the cured material of unsaturated polyester varnish.
- a chemical bond structure such as block copolymerization is formed by polymerization of the living radical-reactive polymerization terminals present on the fracture surface and the polymerization agent. It is thought that it was done.
- the glass transition temperature showed almost the same value.
- the radical polymerization terminal derived from the unsaturated polyester varnish existing on the fracture surface and methyl methacrylate undergo radical polymerization, so that the two fracture surfaces are chemically shared through the radical polymerization. It is thought that this is because the bonding of the resin materials that are bonded and microscopically has no interface occurs. That is, it is considered that the two fractured surfaces are bonded by a covalent bond with a repeating unit derived from methyl methacrylate.
- the two resin materials 12 prepared in Example 6 were prepared, and the polymerization agent 4 was applied to the side surfaces of the respective resin materials 12 using the dropper 3. (FIG. 10 (b)).
- the polymerization agent 4 contains the same unsaturated monomer (unsaturated polyester varnish) as the unsaturated monomer constituting the resin material 12.
- the two resin materials 12 and 12 were fixed with the polyimide tape 11 (FIG.10 (c)), and the resin material which the two resin materials 12 and 12 joined was obtained.
- Example 6 [3. Evaluation of self-healing function based on changes in radical polymerization initiator concentration]
- 0.15 g of diethylmethoxyborane (3% by mass based on the unsaturated monomer) was added, but the amount of diethylmethoxyborane added was 0.005 g (0.1% by mass; Example 7), 0 0.025 g (0.5 wt%; Example 8), 0.05 g (1 wt%; Example 9) and 0.25 g (5 wt%; Example 10)
- a resin material was prepared and the obtained resin material was evaluated in the same manner as described above. The evaluation results are shown in Table 2. Table 2 also shows the results of Example 6.
- the tensile strength after repair, the elongation rate, and the repair rate of tensile strength are increased.
- the repair rate is 100%. This is considered to be because when the concentration of the polymerization initiator is 1% by mass or more, sufficient dormant species are formed, and high repair performance is exhibited.
- a resin material having a polymerization initiator concentration of 0.1% by mass or more comes to exhibit a self-repair function, and in particular, a resin material having a polymerization initiator concentration of 1% by mass or more has a resin strength equivalent to that before restoration. It was found that it recovered until.
- Model number: S0060 0.6g Isooctane (manufactured by Wako Pure Chemical Industries, Ltd., model number: 202-02886) 1 g ⁇ Aqueous solution 200g of water Polyvinyl alcohol (Wako Pure Chemical Industries, degree of polymerization 1000 model number: 162-16325) 2g Tricalcium phosphate aqueous solution (TCP-10U, Taihei Chemical Industrial Co., Ltd.) 100g
- the organic phase solution and the aqueous phase solution were mixed and mixed at 2000 rpm for 10 minutes to prepare an O / W type emulsion.
- the obtained emulsion was transferred to an eggplant flask, depressurized to about 30 kPa, and dried in the solution at 35 ° C. and 250 rpm for 8 hours. During drying, heat treatment was performed so that dichloromethane and isooctane as organic solvents were gradually removed from the inside of the oil droplets contained in the emulsion.
- the oil droplets after drying in the liquid are separated by filtration, washed with a 0.5 M aqueous hydrochloric acid solution to remove deposits such as tricalcium phosphate, and freeze-dried to encapsulate the desired polymerizing agent-encapsulated capsule Got. At this time, the yield was 74%.
- FIG. 11 shows an SEM photograph of the obtained polymer-encapsulated capsule taken with a scanning electron microscope (manufactured by Hitachi High-Technologies Corporation, model number: S-4800).
- the polymer-encapsulated capsule has a fine structure, and by being compounded (dispersed) in the resin material, it is self-healing and highly efficient with respect to the damaged part as a polymerizer. It has been found that it is possible to feed the unsaturated monomer.
- the average particle diameter of the polymer-encapsulated capsule was measured. As a result, it was found that the average particle size of the polymer-encapsulated capsule was 1.6 ⁇ m.
- the amount of the polymer encapsulated in the polymer-encapsulated capsule is artificially crushed by removing the polymer solution in the capsule by crushing the polymer-encapsulated capsule, and then the capsule shell is dried, and the mass change of the capsule is measured.
- the content of the unsaturated polyester varnish contained in the polymer-encapsulating capsule was 41.8% by mass with respect to the total amount of the polymer-encapsulating capsule before operation.
- Example 11 a resin material containing a polymer-encapsulating capsule.
- the heating conditions were the same as in Example 6. At this time, the yield was 96%.
- the tensile strength and elongation were measured by the same method as in Example 6 using the obtained resin material, the tensile strength was 22 MPa and the elongation was 7.1%.
- the obtained resin material is a material (self-healing material) capable of autonomously repairing cracks in the resin material because it is configured to supply a polymerizing agent to the resin material at the time of breakage. Therefore, it is not necessary to supply a polymerization agent from the outside, and uniform repair can be easily performed. Therefore, in order to evaluate the self-repair function from this point of view, the obtained resin material was fractured by the method shown below and rejoined by the method shown in FIG.
- Example 6 the obtained resin material was measured in the same manner as in Example 6 for tensile strength, elongation, tensile strength repair rate, glass transition temperature, and glass transition temperature reduction rate. The results are shown in Table 3. Table 3 also shows Example 6 in which the polymer-encapsulated capsules are not dispersed.
- the resin material of Example 11 had the same tensile strength as that of the resin material after repair, and the repair rate was 100%. Moreover, similarly to the result of the tensile strength, the glass transition temperature showed an equivalent value, and the reduction rate of the glass transition temperature was 0%.
- these results indicate that the radical polymerization terminal existing on the fracture surface and the leaked unsaturated monomer undergo radical polymerization, so that the two fracture surfaces are chemically shared through the radical polymerization. It is thought that this is because the bonding of the resin materials that are bonded and microscopically has no interface occurs. That is, it is considered that the two fractured surfaces are bonded by a covalent bond with a repeating unit derived from an unsaturated monomer contained in the polymerization agent.
- the resin material of Example 11 has a structure including a polymer-encapsulating capsule, it has a feature that it is not necessary to supply a polymerizing agent from the outside. Therefore, the resin material can be repaired more easily by using a resin material in which such a polymer encapsulating capsule is dispersed. Moreover, even when the polymer-encapsulated capsule was dispersed in the resin material, the tensile strength, elongation, and glass transition temperature were comparable to those of the resin material not dispersed. From this, it is considered that there is no deterioration in the strength of the resin material due to the dispersion of the polymer-containing capsule.
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Abstract
Description
本実施形態に係る樹脂材料は、ラジカル重合開始剤によって重合可能な不飽和モノマーがリビングラジカル重合してなる樹脂を含む。そして、破断時には、当該破断時に生じる破断面にラジカル重合開始可能な部位が存在し、当該部位とラジカル重合可能な不飽和モノマーが前記部位に接触した場合に、前記部位に対する不飽和モノマーのラジカル重合が行われる自己修復機能を有するものである。
本実施形態に係る樹脂材料を構成する不飽和モノマーは、不飽和結合を有し、ラジカル重合可能な不飽和モノマーである限り特に制限されない。即ち、本実施形態に係る樹脂材料は、ラジカル重合可能な公知の任意の不飽和モノマーをラジカル重合させて得られるものである。
次に、本発明者らの検討によって得られた、前記の原料及び製造方法によって得られた樹脂材料が破断した際の自己修復機能について、図面を参照しながら説明する。なお、自己修復機能とは、前記のように、破断時には、当該破断時に生じる破断面にラジカル重合開始可能な部位が存在し、当該部位とラジカル重合可能な不飽和モノマーが前記部位に接触した場合に、前記部位に対する不飽和モノマーのラジカル重合が行われるものである。
前記のように、エンジニアリングプラスチック等の高強度、高耐熱性の樹脂材料は、成型性及び加工性が困難であり、しかも樹脂材料自体が修復機能を備えないため、一度損傷を受けると元の構造に戻すことは難しい。そこで、これまでの「耐える」樹脂材料の設計からの脱却を目的として、損傷部の修復が可能な「治る」樹脂材料を設計、即ち修復機能を有する樹脂材料を設計することが考えられた。
本工程においては、重合剤と、前記重合剤を内包するための被膜形成材料並びに有機溶媒を含む有機相からなる有機溶液と、分散剤を溶解した水相からなる水溶液と、を混合することにより、O/W型のエマルジョンを調製する。この際、有機相には例えば安定剤、硬化促進剤等が必要に応じて添加される。
さらに、有機溶媒としては、特に制限されるものではないが、例えばイソオクタン、ジクロロメタン、ジクロロエタン、酢酸エチル等が挙げられる。
また、分散剤、必要に応じて添加される硬化促進剤としては、特に制限されるものではないが、例えばソルビタンモノオレート等が挙げられる。
なお、前記の化合物はそれぞれ、1種が単独で用いられてもよく、2種以上が任意の比率及び組み合わせで用いられてもよい。
本工程においては、前記エマルジョンを所定の温度(例えば35℃程度)で減圧し(例えば絶対圧で30kPa程度)、前記油滴中の有機溶媒等を3時間~24時間程度かけて徐々に除去する。そして、油滴の大きさが所望のものになったら、得られた凝集後のエマルジョンを次の濾過、洗浄及び乾燥工程に供する。
本工程においては、前記液中乾燥工程において得られた凝集後のエマルジョンを含む溶液を遠心し、油滴を分離する。この際、油滴は例えばろ過によって分離することもできる。そして、分離された油滴を例えば0.5M塩酸水溶液等を用いて洗浄し、分散剤等の付着物を除去する。その後、洗浄後の油滴を乾燥(自然乾燥若しくは凍結乾燥)させることにより、重合剤4が内包された重合剤内包カプセル6を得ることができる。
前記のように、本実施形態に係る樹脂材料においては、自己修復機能の導入によって樹脂材料の機械的損傷に対して自己修復が可能となり、樹脂材料の長寿命化、樹脂強度保持及び耐熱性維持とが可能となる。このような自己修復機能の用途は、樹脂材料の接合による樹脂強度の修復のみならず、損傷を微視的なレベルで修復し、目視可能なレベルまで成長するのを防ぐ技術としても有用である。
次に、本実施形態に係る樹脂材料の用途を、図4~図7に具体的な構造を挙げて説明する。
図4(a)及び(b)は、いずれも本実施形態に係る樹脂材料を備えるケーブルの段面構造を模式的に示す図である。図4(a)に示すケーブル100においては、本実施形態に係る樹脂材料は被覆層20に用いられている。また、図4(b)に示すケーブル101においては、本実施形態に係る樹脂材料は絶縁層21に用いられている。つまり、本実施形態に係る樹脂材料は、いずれもケーブル被覆材として用いられている。また、図4(b)に示す絶縁層21においては、図2において説明した重合剤内包カプセル(図4においては図示していない。)が分散されていてもよい。
本実施形態に係る樹脂材料は、例えばモールド封止材、モールド封止材を製造する用途に用いられるポッティング材(モールド封止材製造用ポッティング材)、電子部品パッケージ等にも適用可能である。これらの具体例について、図5を参照しながら説明する。図5(a)は、図2に示した重合剤内包カプセルを含む本実施形態に係る樹脂材料をモールド封止材として適用した、電子部品パッケージの一具体例としてのDIP(Dual Inline Package)200の斜視図、図5(b)は、図5(a)に示すDIP200のA-A線断面図である。
本実施形態に係る樹脂材料は、例えばモータコイルの保護材、モータコイル保護材用ワニス、モータ等にも適用可能である。これらの具体例について、図6を参照しながら説明する。図6(a)はモータコイル保護材300の上側面図、図6(b)はモータ保護材300を用いたモータ301の断面構造であり、(b-1)は回転子磁心32の軸方向に対して平行な方向の断面図、(b-2)は回転子磁心32の軸方向に対して垂直な方向の断面図である。
本実施形態に係る樹脂材料は、例えば筐体部材、フレーム材、パネル材、模型用部材等の構造材料等にも適用可能である。これらの具体例について、図7を参照しながら説明する。図7は、本実施形態に係る樹脂材料を、携帯電話33を構成する筐体34の部材として適用した例である。図7に示す筐体に用いた本実施形態に係る樹脂材料には、図2に示した重合剤内包カプセルが含まれている。
〔実施例1 スチレンを用いた樹脂材料の調製〕
スチレン(東京化成工業社製 型番:S0095)10gに対してジエチルメトキシボラン(アルドリッチ社製 型番:347205)を0.3g(スチレンに対して3質量%)加え、スターラで撹拌混合した。アルミカップ中に得られた混合物を入れ、ベーク炉でアルミカップを加熱した。ベーク炉内では、バルク重合により加熱を行い、重合温度、重合時間は60℃30分、80℃30分、120℃60分の順で空気中にて行った。加熱後、室温まで冷却して樹脂材料(1)を得た。得られた樹脂材料(1)の収率は96%であった。
メタクリル酸メチル(東京化成工業社製 型番:M0087)10gに対してジエチルメトキシボラン(アルドリッチ社製 型番:347205)を0.3g(メタクリル酸メチルに対して3質量%)加え、スターラで撹拌混合した。得られた混合物について、実施例1と同様にして加熱冷却し、樹脂材料(2)を得た。得られた樹脂材料(2)の収率は95%であった。
酢酸ビニル(和光純薬工業社製 型番:224-00246)10gに対してジエチルメトキシボラン(アルドリッチ社製 型番:347205)を0.3g(酢酸ビニルに対して3質量%)加え、スターラで撹拌混合した。得られた混合物について、実施例1と同様にして加熱冷却し、樹脂材料(3)を得た。得られた樹脂材料(3)の収率は94%であった。
スチレン(東京化成工業社製 型番:S0095)5.2g(50mmol)及び無水マレイン酸(東京化成工業社製 型番:M0005)4.8g(50mmol)の混合物に対してジエチルメトキシボラン(アルドリッチ社製 型番:347205)を0.3g(スチレン及び無水マレイン酸の総量に対して3質量%)加え、55℃のホットスターラで撹拌混合した。得られた混合物について、実施例1と同様にして加熱冷却し、樹脂材料(4)を得た。得られた樹脂材料(4)の収率は95%であった。
スチレン(東京化成工業社製 型番:S0095)2.3g(22mmol)及びジビニルベンゼン(80%ジビニルベンゼン、アルドリッチ社製 型番:414565)2.9g(22mmol)に対してジエチルメトキシボラン(アルドリッチ社製 型番:347205)を0.156g(スチレン及びジビニルベンゼンの総量に対して3質量%)加え、スターラで撹拌混合した。得られた混合物について、実施例1と同様にして加熱冷却し、樹脂材料(5)を得た。得られた樹脂材料(5)の収率は97%であった。
不飽和ポリエステルワニス(日立化成工業社製 WP2820GN(不飽和ポリエステル/スチレン混合物))5.0gに対してジエチルメトキシボラン(アルドリッチ社製 型番:347205)を0.15g(不飽和ポリエステルワニスに対して3質量%)加え、スターラで撹拌混合した。得られた混合物について、実施例1と同様にして加熱冷却し、不飽和ポリエステルワニスの硬化物からなる樹脂材料(6)を得た。樹脂材料(6)の収率は98%であった。
ジエチルメトキシボランの代わりにtert-ブチル(3,5,5-トリメチルヘキサノイル)ペルオキシド(日立化成工業社製 CT-45)を用いたこと以外は実施例1と同様にして、樹脂材料(7)を調製した。tert-ブチル(3,5,5-トリメチルヘキサノイル)ペルオキシドは過酸化物であり、リビングラジカル重合を生じさせないラジカル重合開始剤である。得られた樹脂材料(7)の収率は95%であった。
ジエチルメトキシボランの代わりにtert-ブチル(3,5,5-トリメチルヘキサノイル)ペルオキシド(日立化成工業社製 CT-45)を用いたこと以外は実施例2と同様にして、樹脂材料(8)を調製した。得られた樹脂材料(8)の収率は95%であった。
ジエチルメトキシボランの代わりにtert-ブチル(3,5,5-トリメチルヘキサノイル)ペルオキシド(日立化成工業社製 CT-45)を用いたこと以外は実施例3と同様にして、樹脂材料(9)を調製した。得られた樹脂材料(9)の収率は93%であった。
ジエチルメトキシボランの代わりにtert-ブチル(3,5,5-トリメチルヘキサノイル)ペルオキシド(日立化成工業社製 CT-45)を用いたこと以外は実施例4と同様にして、樹脂材料(10)を調製した。得られた樹脂材料(10)の収率は93%であった。
ジエチルメトキシボランの代わりにtert-ブチル(3,5,5-トリメチルヘキサノイル)ペルオキシド(日立化成工業社製 CT-45)を用いたこと以外は実施例5と同様にして、樹脂材料(11)を調製した。得られた樹脂材料(11)の収率は98%であった。
ジエチルメトキシボランの代わりにtert-ブチル(3,5,5-トリメチルヘキサノイル)ペルオキシド(日立化成工業社製 CT-45)を用いたこと以外は実施例6と同様にして、樹脂材料(12)を調製した。得られた樹脂材料(12)の収率は97%であった。
[2-1.樹脂材料を構成する不飽和モノマーと同じ重合剤を用いた場合]
樹脂材料(1)~(12)について、次の方法で破断及び修復を施し、樹脂材料の修復機能を評価した。樹脂材料2の再接着方法を図8に示す。得られた各樹脂材料2にカッターナイフ10で傷をつけた後(図8(a))、樹脂材料2の両端を持って折り曲げて樹脂材料2を割った(図8(b))。スポイト3を用いて、樹脂材料2を構成する不飽和モノマーからなる重合剤4を破断面に対して均一に塗布して(図8(c))、破断面同士を密着させた後にポリイミドテープ11により樹脂材料2を固定した(図8(d))。
前記の[2-1.樹脂材料を構成する不飽和モノマーと同じ重合剤を用いた場合]においては、樹脂材料を構成する不飽和モノマーと同じ不飽和モノマーを破断面に塗布しているが、次に、異なる不飽和モノマーを塗布した場合の自己修復機能について評価した。
実施例6において調製した樹脂材料(6)を破断せず、得られた樹脂材料(6)の側面に重合剤を塗布し、2つの樹脂材料(6)同士を接合して得られた樹脂材料の物性を評価した。
実施例6においてジエチルメトキシボランを0.15g(不飽和モノマーに対して3質量%)加えているが、ジエチルメトキシボランの添加量を0.005g(0.1質量%;実施例7)、0.025g(0.5質量%;実施例8)、0.05g(1質量%;実施例9)及び0.25g(5質量%;実施例10)に代えたこと以外は実施例6と同様にして樹脂材料を調製し、得られた樹脂材料について前記と同様の評価を行った。評価結果を表2に示す。なお、表2には実施例6の結果も併せて示している。
[4-1.重合剤内包カプセルの調製]
不飽和モノマーとしての不飽和ポリエステルワニスを内包するカプセル(重合剤内包カプセル)を以下に示す方法で調製した。はじめに、以下に示す組成の有機相溶液及び水相溶液を調製した。
ジクロロメタン(和光純薬工業社製 型番:135-02446) 20g
ポリメタクリル酸メチル(アルドリッチ社製 分子量Mw=15000 型番:200336) 2g
不飽和ポリエステルワニス(日立化成工業社製 WP2820GN) 8g
ソルビタンモノオレート(東京化成工業社製 スパン80 型番:S0060) 0.6g
イソオクタン(和光純薬工業社製 型番:202-02886) 1g
・水相溶液
水 200g
ポリビニルアルコール(和光純薬工業社製 重合度1000 型番:162-16325) 2g
第三リン酸カルシウム水溶液(太平化学産業社製 TCP-10U) 100g
前記調製した重合剤内包カプセルを用い、重合剤内包カプセルを含む樹脂材料を以下の方法で調製した。
1a 破断面
2 樹脂材料
3 スポイト
4 重合剤
5 樹脂修復膜
6 重合剤内包カプセル
7 接合層
10 カッターナイフ
11 ポリイミドテープ
12 樹脂材料
13 導体
14 内部半導電層
15 絶縁層
16 外部半導電層(密着層)
17 外部半導電層(剥離層)
18 被覆層
19 外皮層
20 被覆層
21 絶縁層
22 リードフレーム
23 モールド封止材
25 ボンディングワイヤ
24 半導体素子
24a 基材
26 磁心
27 被覆銅線
28 モータコイル保護材
29 固定子コイル
30 固定子磁心
31 スロット
32 回転子磁心
33 携帯電話
34 筐体
200 DIP
300 モータコイル保護材
301 モータ
Claims (23)
- ラジカル重合開始剤によって重合可能な不飽和モノマーがリビングラジカル重合してなる樹脂を含み、
破断時には、該破断時に生じる破断面にラジカル重合開始可能な部位が存在し、該部位とラジカル重合可能な不飽和モノマーが前記部位に接触した場合に、前記部位に対する不飽和モノマーのラジカル重合が行われる自己修復機能を有することを特徴とする、樹脂材料。 - 前記破断面に存在するラジカル重合開始可能な部位に対して重合可能な不飽和モノマーが内包された容器を含み、
前記自己修復機能が、
前記破断時に前記容器が破壊され、内包されていた前記不飽和モノマーが漏出し、漏出した該不飽和モノマーが前記破断面に接触することにより、前記ラジカル重合開始可能な部位と接触した前記不飽和モノマーがラジカル重合するものであることを特徴とする、請求の範囲第1項に記載の樹脂材料。 - 前記ラジカル重合開始剤がアルキルボランであることを特徴とする、請求の範囲第1項又は第2項に記載の樹脂材料。
- 前記不飽和モノマーが、芳香族ビニル化合物、アルキル(メタ)アクリレート、不飽和モノカルボン酸エステル、フルオロアルキル(メタ)アクリレート、シロキサニル化合物、アルキレングリコールのモノ-若しくはジ-(メタ)アクリレート、アルコキシアルキル(メタ)アクリレート、シアノアルキル(メタ)アクリレート、シアノ化合物、多価アルコールのオリゴ(メタ)アクリレート、ヒドロキシアルキル(メタ)アクリレート、不飽和カルボン酸のヒドロキシアルキルエステル、不飽和アルコール、不飽和(モノ)カルボン酸、不飽和ポリカルボン酸若しくは不飽和ポリカルボン酸無水物、不飽和ポリカルボン酸若しくは不飽和ポリカルボン酸無水物のモノ若しくはジエステル、エポキシ基含有不飽和化合物、ジエン化合物、塩化ビニル、酢酸ビニル、イソプレンスルホン酸ナトリウム、ケイ皮酸エステル、クロトン酸エステル、ジシクロペンタジエン及びエチリデンノルボルネンからなる群より選ばれる1種以上の不飽和モノマーであることを特徴とする、請求の範囲第1項又は第2項に記載の樹脂材料。
- 前記部位に接触する不飽和モノマーが、前記樹脂を構成する不飽和モノマーと同一若しくは異なる不飽和モノマーであることを特徴とする、請求の範囲第1項又は第2項に記載の樹脂材料。
- 前記容器が粒子形状であり、
該容器の平均粒径が10nm以上1mm以下であることを特徴とする、請求の範囲第2項に記載の樹脂材料。 - 請求の範囲第2項に記載の樹脂材料を製造する方法であって、
前記ラジカル重合開始剤と、前記樹脂を構成する不飽和モノマーと、不飽和モノマーが内包されている前記容器と、を混合する工程と、
前記樹脂を構成する不飽和モノマーをリビングラジカル重合させる工程と、
を含むことを特徴とする、樹脂材料の製造方法。 - 請求の範囲第1項に記載の樹脂材料における修復方法であって、
前記接触が、前記破断面に存在するラジカル重合開始可能な部位とラジカル重合可能な不飽和モノマーを塗布、注入、浸漬、噴霧、印刷、転写又は貼付することにより行われることを特徴とする、樹脂材料の修復方法。 - 請求の範囲第2項に記載の樹脂材料における修復方法であって、
前記樹脂材料が破断した時に前記容器が破裂して前記不飽和モノマーが漏出し、
漏出した前記不飽和モノマーが前記破断面に接触して、前記ラジカル重合開始可能な部位とのラジカル重合が行われることを特徴とする、樹脂材料の修復方法。 - 前記破断面が、前記樹脂材料の損傷、変形、破損、擦傷、破壊、裂傷、裁断、断裂、劣化、分解、成形又は成膜によって形成されることを特徴とする、請求の範囲第8項又は第9項に記載の樹脂材料の修復方法。
- 修復後の樹脂材料の強度の低下率が、修復前の樹脂材料の強度の10%以内であることを特徴とする、請求の範囲第8項又は第9項に記載の樹脂材料の修復方法。
- 修復後の樹脂材料における、熱機械特性分析によるガラス転移温度の低下率が、修復前の樹脂材料における、熱機械特性分析によるガラス転移温度と比べて10%以内であることを特徴とする、請求の範囲第8項又は第9項に記載の樹脂材料の修復方法。
- 請求の範囲第1項~第6項の何れか1項に記載の樹脂材料を有することを特徴とする、ケーブル被覆材。
- 請求の範囲第13項に記載のケーブル被覆材を有することを特徴とする、ケーブル。
- 請求の範囲第1項~第6項の何れか1項に記載の樹脂材料を有することを特徴とする、モールド封止材。
- 請求の範囲第15項に記載のモールド封止材を用いることを特徴とする、モールド封止方法。
- 請求の範囲第15項に記載のモールド封止材を製造する用途に用いられることを特徴とする、モールド封止材製造用ポッティング材。
- 請求の範囲第15項に記載のモールド封止材を有することを特徴とする、電子部品パッケージ。
- 請求の範囲第1項~第6項の何れか1項に記載の樹脂材料を有することを特徴とする、モータコイルの保護材。
- 請求の範囲第19項に記載のモータコイルの保護材を製造する用途に用いられることを特徴とする、モータコイル保護材用ワニス材。
- 請求の範囲第19項に記載のモータコイルの保護材を有することを特徴とする、モータ。
- 請求の範囲第1項~第6項の何れか1項に記載の樹脂材料を有することを特徴とする、構造材料。
- 筐体部材、フレーム材、パネル材又は模型用部材であることを特徴とする、請求の範囲第22項に記載の構造材料。
Priority Applications (5)
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PCT/JP2011/058831 WO2012137338A1 (ja) | 2011-04-07 | 2011-04-07 | 樹脂材料、並びにその製造方法、その修復方法及びそれを用いた各部材 |
EP11863125.8A EP2695898A4 (en) | 2011-04-07 | 2011-04-07 | DENSITY, MANUFACTURING PROCESS, METHOD FOR ITS REPAIR AND PARTS THEREFOR |
JP2013508689A JP5943392B2 (ja) | 2011-04-07 | 2011-04-07 | 樹脂材料、並びにその製造方法、その修復方法及びそれを用いた各部材 |
US14/009,911 US20140024765A1 (en) | 2011-04-07 | 2011-04-07 | Resin material, manufacturing method thereof, repairing method thereof, and various components using the same |
TW101110573A TWI471215B (zh) | 2011-04-07 | 2012-03-27 | A resin material, a manufacturing method thereof, a method for repairing the same, and a member using the same |
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PCT/JP2011/058831 WO2012137338A1 (ja) | 2011-04-07 | 2011-04-07 | 樹脂材料、並びにその製造方法、その修復方法及びそれを用いた各部材 |
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US (1) | US20140024765A1 (ja) |
EP (1) | EP2695898A4 (ja) |
JP (1) | JP5943392B2 (ja) |
TW (1) | TWI471215B (ja) |
WO (1) | WO2012137338A1 (ja) |
Cited By (4)
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WO2014038031A1 (ja) * | 2012-09-06 | 2014-03-13 | 株式会社日立製作所 | ホウ素化合物を用いた重合体の形成方法並びに重合開始剤及び重合体 |
JP2016521802A (ja) * | 2013-06-13 | 2016-07-25 | オートノミック マテリアルズ、インコーポレイテッド | 不飽和ポリエステルによる自己修復ポリマー材料 |
JP2017041496A (ja) * | 2015-08-18 | 2017-02-23 | 富士電機株式会社 | 半導体装置 |
US11008415B2 (en) | 2016-08-29 | 2021-05-18 | Hitachi, Ltd. | Resin cured product, electrical device, motor, transformer, cable sheath, mobile, structure, and method for healing resin cured product |
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KR102329050B1 (ko) * | 2015-04-17 | 2021-11-19 | 삼성디스플레이 주식회사 | 터치 패널 및 이의 제조방법 |
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AT521060A1 (de) * | 2018-03-27 | 2019-10-15 | Miba Ag | Stator |
US10868456B2 (en) * | 2018-05-31 | 2020-12-15 | Siemens Energy, Inc. | False tooth assembly for generator stator core |
US11543322B2 (en) * | 2020-05-01 | 2023-01-03 | Globalfoundries U.S. Inc. | Crack identification in IC chip package using encapsulated liquid penetrant contrast agent |
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WO2014038031A1 (ja) * | 2012-09-06 | 2014-03-13 | 株式会社日立製作所 | ホウ素化合物を用いた重合体の形成方法並びに重合開始剤及び重合体 |
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Also Published As
Publication number | Publication date |
---|---|
TW201302445A (zh) | 2013-01-16 |
EP2695898A4 (en) | 2015-02-18 |
TWI471215B (zh) | 2015-02-01 |
JPWO2012137338A1 (ja) | 2014-07-28 |
US20140024765A1 (en) | 2014-01-23 |
JP5943392B2 (ja) | 2016-07-05 |
EP2695898A1 (en) | 2014-02-12 |
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