CN106009546A - PBT material with epoxy resin cohesiveness for ignition coil and preparation method of PBT material - Google Patents
PBT material with epoxy resin cohesiveness for ignition coil and preparation method of PBT material Download PDFInfo
- Publication number
- CN106009546A CN106009546A CN201610516802.7A CN201610516802A CN106009546A CN 106009546 A CN106009546 A CN 106009546A CN 201610516802 A CN201610516802 A CN 201610516802A CN 106009546 A CN106009546 A CN 106009546A
- Authority
- CN
- China
- Prior art keywords
- pbt
- parts
- ignition coil
- epoxy resin
- pbt material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Epoxy Resins (AREA)
Abstract
The invention discloses a PBT material with epoxy resin cohesiveness for an ignition coil. The PBT material is prepared from the following raw materials in parts by weight: 60 to 80 parts of PBT, 15 to 20 parts of cardanol amine, 15 to 20 parts of polyvinyl alcohol microsphere, 5 to 8 parts of sodium dodecyl sulfate, 5 to 10 parts of gelatin, 6 to 12 parts of carbon nanotube, 1 to 3 parts of zinc stearate and 1 to 3 parts of antioxygen 245. According to the PBT material, a coated curing agent is introduced, so that the content of functional groups with reaction capacity with epoxy resin in the material is increased, and additionally, the microcapsule curing agent can break through a microcapsule and can be slowly released under certain conditions so as to complete the curing behavior, so that the purpose of controlling the curing process of the material and an epoxy resin sealant is achieved, and the interface cohesiveness between the material and the epoxy resin is increased.
Description
Technical field
The present invention relates to technical field of polymer materials, specifically, be a kind of ignition coil PBT material with epoxy bond and preparation method thereof.
Background technology
Polybutylene terephthalate (PBT) (English name Polybutylene Terephthalate is called for short PBT) is milky white
Color is translucent to opaque, crystalline thermoplastic polyester.It has the electrical property of excellence, high-fire resistance, toughness, fatigue durability, self-lubricating, low-friction coefficient, weatherability, water absorption rate are low, various physical property (including electrical property) is still kept in wet environment, and good forming ability, pretend and be widely used in automobile, electronic apparatus parts for engineering plastics.
Engine igniting coil is the key component of engine igniting system, and its effect is the high voltage that the low-voltage of automobile storage battery is promoted to cause the 20kv to 40kv of spark-discharge.Wear therefore to prevent high voltage down-firing coil to be electrically shocked, the dielectric strength of increasing ignition coil component, generally use the method for encapsulated epoxy resin that each for ignition coil parts are carried out insulation-encapsulated.If but ignition coil parts material therefor can not form good bonding with epoxy resin, then worst between material and epoxy resin bonding point, minimum insulating point will be become, material breakdown or short circuit will be caused under high voltages, make ignition coil lose efficacy.Further, in automobile ignition coil work process, due to constant ignition, coil heating, temperature reaches as high as more than 100 DEG C, and after quitting work, temperature can be reduced to again air themperature, winter cold district, temperature can be the most subzero 20 DEG C even 30 DEG C, even lower.Therefore ignition coil is to use, due to ignition coil parts under the environment that colds and heat succeed each other
There are differences at linear expansion coefficient with epoxy resin embedding adhesive, when system alternating hot and cold when, thermal stress between epoxy resin and ignition coil parts, will be produced, easily cause ignition coil to ftracture, cause ignition coil to lose efficacy.If there being good caking property between material and epoxy resin, then can effectively resist owing to thermal shock produces the thermal stress between material and epoxy resin, thus improve the service life of ignition coil.For these reasons, it is desirable between the epoxy resin of ignition coil material and package curing, have good caking property.
Chinese patent CN
104610711 B disclose a kind of PBT material with good epoxy bond and preparation method thereof, this invention uses compounding of antioxidant 24-44, irgasfos 168, antioxidant 1010 and carbon free agent for capturing HP136, synergism by each component, material is made to have the ageing resistace of excellence, introducing and epoxy resin have the reactive functionality of respond, improve the interface adhesion with epoxy resin, but when using, epoxy resin viscosity B coefficent is difficult to control to rapidly solidification process, and fast setting causes packaging efficiency to reduce.Therefore improve the cementation between polybutylene terephthalate (PBT) (PBT) and epoxy resin embedding adhesive to still need to study further.
Summary of the invention
It is an object of the invention to for the deficiencies in the prior art, it is provided that a kind of ignition coil PBT material with epoxy bond and preparation method thereof.
The technical problem to be solved, is achieved through the following technical solutions:
A kind of ignition coil PBT material with epoxy bond, is made up of the raw material of following weight: PBT
60-80 part, Cardanol amine 15-20 part, polyvinyl alcohol microparticles 15-20 part, dodecyl sodium sulfate 5-8 part, gelatin 5-10 part, CNT 6-12 part, zinc stearate 1-3 part, antioxidant 245
1-3 part.
Specifically comprise the following steps that
(1), the preparation of micro capsule curing agent:
1., under agitation, adding 0.1-0.8wt% aqueous gelatin solution, 0.1-0.8wt% sodium dodecyl sulfate aqueous solution, under the mechanical agitation of 500-1000 rev/min, dispersion obtains aqueous phase in 30-60 minute；
2., in dichloromethane solvent, add Cardanol amine and polyvinyl alcohol microparticles, and be uniformly dispersed in Ultrasound Instrument and obtain oil phase, the aqueous phase that step is 1. prepared is gradually added drop-wise in oil phase；
3., mixed liquor stirring and emulsifying 40-80 minute, rise high reaction temperature and stir 3-5 hour to 30-35 DEG C, then be warming up to 40-45 DEG C and stir more than 3-5 hour, by centrifugal for suspension, distilled water wash, drying to obtain micro capsule curing agent after volatilizing to solvent；
(2), putting in high-speed mixer by PBT, micro capsule curing agent, zinc stearate, antioxidant 245, mix homogeneously, incorporation time is 10-20 minute, obtains premix material；
(3) premix material, by step (2) obtained adds double screw extruder, and CNT is added by extruder double-screw extruder middle and lower reaches, extruded machine extrusion, traction, melt pelletization, obtains the PBT material with good epoxy bond；Wherein extruder rotating speed is 200-600 rev/min, and temperature is 220-250 DEG C.
Aqueous gelatin solution concentration described in the preparation method of described a kind of ignition coil PBT material with epoxy bond is 0.1-1wt%.
Sodium dodecyl sulfate aqueous solution concentration described in the preparation method of described a kind of ignition coil PBT material with epoxy bond is 0.1-1wt%.
A kind of ignition coil PBT material with epoxy bond of the present invention, compared with prior art has the advantage that
(1) the epoxy resin micro-capsule firming agent that can react is introduced with epoxy resin, improve the functional group content with epoxy resin in material with respond, at ignition coil encapsulated phase and epoxy resin embedding adhesive generation chemical reaction so that form excellent interfacial adhesion between material and epoxy resin.
(2) firming agent after cladding can break microcapsule and slowly discharge under certain condition, completes curing action, thus reaches the purpose controlling material with epoxy resin embedding adhesive solidification process, improves the caking property between material and epoxy resin.
Detailed description of the invention
By embodiment, the invention will be further described.
Embodiment 1
Weigh: PBT 70 kilograms, Cardanol amine 18 kilograms, polyvinyl alcohol microparticles 18 kilograms, dodecyl sodium sulfate 6 kilograms, 6 kilograms of gelatin, CNT 9 kilograms, zinc stearate 2 kilograms, 245 2 kilograms of antioxidant.
Specifically comprise the following steps that
(1), the preparation of micro capsule curing agent:
1., under agitation, adding 0.5wt% aqueous gelatin solution, 0.5wt% sodium dodecyl sulfate aqueous solution, under the mechanical agitation of 800 revs/min, dispersion obtains aqueous phase in 40 minutes；
2., in dichloromethane solvent, add Cardanol amine and polyvinyl alcohol microparticles, and be uniformly dispersed in Ultrasound Instrument and obtain oil phase, the aqueous phase that step is 1. prepared is gradually added drop-wise in oil phase；
3., mixed liquor stirring and emulsifying 60 minutes, rise high reaction temperature and stir 4 hours to 32 DEG C, then be warming up to 43 DEG C and stir more than 4 hours, suspension is centrifugal, distilled water wash, drying to obtain micro capsule curing agent after volatilizing to solvent；
(2), putting in high-speed mixer by PBT, micro capsule curing agent, zinc stearate, antioxidant 245, mix homogeneously, incorporation time is 15 minutes, obtains premix material；
(3) premix material, by step (2) obtained adds double screw extruder, and CNT is added by extruder double-screw extruder middle and lower reaches, extruded machine extrusion, traction, melt pelletization, obtains the PBT material with good epoxy bond；Wherein extruder rotating speed is 500 revs/min, and temperature is 240 DEG C.
Material properties test data: hot strength 116Mpa, bending strength 178Mpa, heat distortion temperature 206 DEG C, tensile shear strength 13Mpa.
Claims (4)
1. an ignition coil PBT material with epoxy bond, it is characterized in that, it is made up of the raw material of following weight: PBT 60-80 part, Cardanol amine 15-20 part, polyvinyl alcohol microparticles 15-20 part, dodecyl sodium sulfate 5-8 part, gelatin 5-10 part, CNT 6-12 part, zinc stearate 1-3 part, antioxidant 245 1-3 part.
2. according to the preparation method of a kind of ignition coil PBT material with epoxy bond described in claims 1, it is characterised in that specifically comprise the following steps that
(1), the preparation of micro capsule curing agent:
1., under agitation, adding 0.1-2wt% aqueous gelatin solution, 0.1-2wt% sodium dodecyl sulfate aqueous solution, under the mechanical agitation of 500-1000 rev/min, dispersion obtains aqueous phase in 30-60 minute；
2., in dichloromethane solvent, add Cardanol amine and polyvinyl alcohol microparticles, and be uniformly dispersed in Ultrasound Instrument and obtain oil phase, the aqueous phase that step is 1. prepared is gradually added drop-wise in oil phase；
3., mixed liquor stirring and emulsifying 40-80 minute, rise high reaction temperature and stir 3-5 hour to 30-35 DEG C, then be warming up to 40-45 DEG C and stir more than 3-5 hour, by centrifugal for suspension, distilled water wash, drying to obtain micro capsule curing agent after volatilizing to solvent；
(2), putting in high-speed mixer by PBT, micro capsule curing agent, zinc stearate, antioxidant 245, mix homogeneously, incorporation time is 10-20 minute, obtains premix material；
(3) premix material, by step (2) obtained adds double screw extruder, and CNT is added by extruder double-screw extruder middle and lower reaches, extruded machine extrusion, melt pelletization, obtains the PBT material with good epoxy bond；Wherein extruder rotating speed is 200-600 rev/min, and temperature is 220-250 DEG C.
3. according to the preparation method of a kind of ignition coil PBT material with epoxy bond described in claims 2, it is characterised in that described aqueous gelatin solution concentration is 0.1-1wt%.
4. according to the preparation method of a kind of ignition coil PBT material with epoxy bond described in claims 2, it is characterised in that described sodium dodecyl sulfate aqueous solution concentration is 0.1-1wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516802.7A CN106009546A (en) | 2016-07-04 | 2016-07-04 | PBT material with epoxy resin cohesiveness for ignition coil and preparation method of PBT material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516802.7A CN106009546A (en) | 2016-07-04 | 2016-07-04 | PBT material with epoxy resin cohesiveness for ignition coil and preparation method of PBT material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106009546A true CN106009546A (en) | 2016-10-12 |
Family
ID=57106272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610516802.7A Pending CN106009546A (en) | 2016-07-04 | 2016-07-04 | PBT material with epoxy resin cohesiveness for ignition coil and preparation method of PBT material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106009546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109891312A (en) * | 2016-10-28 | 2019-06-14 | 夏普株式会社 | Sealing material constituent, liquid crystal cells and scanning antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423673A (en) * | 2011-07-28 | 2012-04-25 | 西北工业大学 | Latent microcapsule curing agent initiating thermosetting epoxy resin curing at medium temperature and preparation method of adhesive thereof |
| CN104610711A (en) * | 2015-01-30 | 2015-05-13 | 上海日之升新技术发展有限公司 | PBT material with excellent epoxy resin bonding property and preparation method of PBT material |
-
2016
- 2016-07-04 CN CN201610516802.7A patent/CN106009546A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423673A (en) * | 2011-07-28 | 2012-04-25 | 西北工业大学 | Latent microcapsule curing agent initiating thermosetting epoxy resin curing at medium temperature and preparation method of adhesive thereof |
| CN104610711A (en) * | 2015-01-30 | 2015-05-13 | 上海日之升新技术发展有限公司 | PBT material with excellent epoxy resin bonding property and preparation method of PBT material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109891312A (en) * | 2016-10-28 | 2019-06-14 | 夏普株式会社 | Sealing material constituent, liquid crystal cells and scanning antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105885365A (en) | Glass bead modified PBT (polybutylene terephthalate) material with epoxy resin bonding performance and preparation method for glass bead modified PBT material | |
| CN105885362A (en) | Hyperbranched resin toughened PBT (polybutylene terephthalate) material with epoxy resin bonding performance and preparation method for hyperbranched resin toughened PBT material | |
| CN105885363A (en) | Micrometer calcium carbonate modified PBT (polybutylene terephthalate) material with epoxy resin bonding performance and preparation method for glass bead modified PBT material | |
| CN105368362A (en) | Two-component epoxy resin pouring sealant and preparation method thereof | |
| CN105694283A (en) | High-strength PVC (polyvinyl chloride) elastomer for electromobile charging cables and preparation process thereof | |
| CN105907057A (en) | Laser-marked PBT material with epoxy resin cohesiveness and preparation technology of laser-marked PBT material | |
| CN106009546A (en) | PBT material with epoxy resin cohesiveness for ignition coil and preparation method of PBT material | |
| CN105885364A (en) | Reinforced and modified PBT (polybutylene terephthalate) material with epoxy resin bonding performance and preparation method for reinforced and modified PBT material | |
| KR100741566B1 (en) | LatentHeat powder and preparing method for the same | |
| CN103436009B (en) | Long glass fiber reinforced nylon composite materials and preparation method thereof | |
| CN105440399A (en) | Polyvinyl wood-plastic composite and preparation method thereof | |
| CN107778786A (en) | A kind of glass microballoon modified PBT material and preparation method thereof | |
| CN105907054A (en) | High-impact-resistance polybutylene terephthalate (PBT) material having epoxy resin bonding property, and preparation method of PBT material | |
| CN106147146A (en) | A kind of low temperature resistant PBT material with epoxy bond and preparation method thereof | |
| CN106117986A (en) | A kind of fire retardant PBT with no halogen material with epoxy bond and preparation method thereof | |
| CN105968449A (en) | High-temperature resistant flame retardant rubber cable material used for electric power | |
| CN105385118A (en) | High-CTI-value flame-retardant and reinforced PBT (polybutylene terephthalate) composite material | |
| CN105907056A (en) | High-temperature-resistant PBT (polybutylene terephthalate) material with epoxy resin adhesiveness and preparation method thereof | |
| Yan et al. | Preparation and characterization of fibrous sepiolite modified silane coupling agent/fluororubber nanocomposite | |
| CN106046703A (en) | Low-warp PBT (polybutylene terephthalate) material with epoxy resin adhesion and preparation method thereof | |
| CN106117987A (en) | A kind of high dielectric PBT material with epoxy bond and preparation method thereof | |
| CN106117990A (en) | A kind of highly crystalline speed PBT material with epoxy bond and preparation method thereof | |
| CN105907053A (en) | High thermal conductivity PBT material with epoxy resin cohesiveness and preparation method thereof | |
| CN107793706A (en) | A kind of glass microballoon modified PBT material and preparation method thereof | |
| CN105907055A (en) | Ceramic fiber reinforced PET material with epoxy resin adhesion and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |