CN106189987A - A kind of encapsulating compound for condensation-proof shielded electric pump rosette and using method - Google Patents
A kind of encapsulating compound for condensation-proof shielded electric pump rosette and using method Download PDFInfo
- Publication number
- CN106189987A CN106189987A CN201610542966.7A CN201610542966A CN106189987A CN 106189987 A CN106189987 A CN 106189987A CN 201610542966 A CN201610542966 A CN 201610542966A CN 106189987 A CN106189987 A CN 106189987A
- Authority
- CN
- China
- Prior art keywords
- rosette
- electric pump
- condensation
- shielded electric
- encapsulating compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a kind of encapsulating compound for condensation-proof shielded electric pump rosette, comprise the steps: that (1) first prepares low molecular weight diol；(2) reacting with excess aromatic isocyanate, generating isocyanates is the prepolymer of end group again；(3) the same chain expansion of succinic acid of prepolymer, obtain thermoplastic elastomer, use technical scheme, thermoplastic elastomer is placed on the backing plate bottom rosette, plays good effect of heat insulation, the cold and hot change that medium causes in shielded electric pump, it is difficult to be delivered in rosette, avoid the generation of the outer dew condensation phenomenon of rosette, it is ensured that the insulation of rosette, and then the safety that the equipment that ensure that uses.
Description
Technical field
The invention belongs to field of machining, connect for condensation-proof shielded electric pump it is more particularly related to a kind of
The encapsulating compound of line box and the method for the encapsulating compound of use condensation-proof shielded electric pump rosette.
Background technology
Prior art shielded electric pump is when transporting low temperature medium, and medium enters motor cavity and causes motor temperature relatively low, with week
Collarette border forms the bigger temperature difference, condensation occurs, causes motor housing to freeze, the generation of the outer dew condensation phenomenon of rosette；Motor housing
Repeatedly freeze, dissolve, cause the damage of motor housing, and the water dissolved also results in surrounding sewage crossing current, is degrading week
Collarette border；Rosette condensation then causes insulating properties to reduce, and even electric leakage causes short circuit；For solving the problems referred to above, shielded electric pump is adopted
By technical schemes such as complex growth junction box structure or water conservancy diversion condensed water structures, but, this method complex process is right
There is certain requirement at scene, adds use cost, uses for a long time, middle interconnecting piece divide still can make moist cause electric leakage, short
The generation of road phenomenon, brings hidden danger to the safe handling of equipment.
Summary of the invention
The technical problem to be solved be to provide a kind of ensure equipment use safety for condensation-proof shielding electricity
The encapsulating compound of pump rosette.
A kind of method that the invention also discloses encapsulating compound using condensation-proof shielded electric pump rosette.
To achieve these goals, the technical scheme that the present invention takes by: the one provided for condensation-proof shielding electricity
The encapsulating compound of pump rosette, comprises the steps:
(1) low molecular weight diol is first prepared；
(2) reacting with excess aromatic isocyanate, generating isocyanates is the prepolymer of end group again；
(3) the same chain expansion of succinic acid of prepolymer, obtains thermoplastic elastomer.
A kind of encapsulating compound for condensation-proof shielded electric pump rosette disclosed by the invention, dihydroxylic alcohols includes ethylene glycol, third
Glycol.
The method of a kind of encapsulating compound using condensation-proof shielded electric pump rosette disclosed by the invention, places bottom rosette
Backing plate, is placed in low molecular weight diol on backing plate, adds excess aromatic isocyanate, is subsequently adding butanediol, places 24
More than hour.
The method of a kind of encapsulating compound using condensation-proof shielded electric pump rosette disclosed by the invention, dihydroxylic alcohols includes second two
Alcohol, propylene glycol.
Polyurethane material is the insulation material that performance is best in the world at present, main chain constitutional repeating unit Han NHCOO
A base polymer, use technical scheme, thermoplastic elastomer be placed on the backing plate bottom rosette, play very well
Effect of heat insulation, the cold and hot change that medium causes in shielded electric pump, it is difficult to be delivered in rosette, it is to avoid tie outside rosette
The generation of dew phenomenon, it is ensured that the insulation of rosette, and then the safety that the equipment that ensure that uses.
Preparation low molecular weight diol can be prepared to use known any mode, is subsequently placed in bottom rosette and places pad
Plate is shaped, and adds excess aromatic isocyanate, is subsequently adding butanediol, places more than 24 hours, and thermoplastic elastomer solidification is solidifying
Poly-, butted line box plays the effect of heat insulation damp proof insulation, has good insulating properties simultaneously, further increases the safety of rosette
Property.
Below with reference to embodiment, the present invention is described in detail.
Detailed description of the invention
Below by the description to embodiment, the shape of each component the most involved to the detailed description of the invention of the present invention,
Structure, mutual alignment and annexation, the effect of each several part and operation principle, manufacturing process between each several part and operate with
Methods etc., are described in further detail, to help those skilled in the art to have inventive concept, the technical scheme of the present invention
More complete, accurate and deep understanding.
Preparation low molecular weight diol can be prepared to use known any mode, and aromatic isocyanate and butanediol are
Commercially available；
Embodiment 1
A kind of encapsulating compound for condensation-proof shielded electric pump rosette of the present invention, comprises the steps:
(1) ethylene glycol is first prepared；Then ethylene glycol is placed on backing plate；
(2) adding excess aromatic isocyanate reaction, generating isocyanates is the prepolymer of end group；
(3) the same chain expansion of succinic acid of prepolymer, obtains thermoplastic elastomer, places more than 24 hours.
Embodiment 2
A kind of encapsulating compound for condensation-proof shielded electric pump rosette of the present invention, comprises the steps:
(1) propylene glycol is first prepared；Then propylene glycol is placed on backing plate；
(2) adding excess aromatic isocyanate reaction, generating isocyanates is the prepolymer of end group；
(3) the same chain expansion of succinic acid of prepolymer, obtains thermoplastic elastomer, places more than 24 hours；
Polyurethane material is the insulation material that performance is best in the world at present, and main chain contains the one of NHCOO constitutional repeating unit
Base polymer, uses technical scheme, is placed on the backing plate bottom rosette by thermoplastic elastomer, play well every
Thermal effect, the cold and hot change that medium causes in shielded electric pump, it is difficult to be delivered in rosette, it is to avoid outside rosette, condensation is existing
The generation of elephant, it is ensured that the insulation of rosette, and then the safety that the equipment that ensure that uses.
Preparation low molecular weight diol can be prepared to use known any mode, is subsequently placed in bottom rosette and places pad
Plate is shaped, and adds excess aromatic isocyanate, is subsequently adding butanediol, places more than 24 hours, and thermoplastic elastomer solidification is solidifying
Poly-, butted line box plays the effect of heat insulation damp proof insulation, has good insulating properties simultaneously, further increases the safety of rosette
Property.
Above the present invention is exemplarily described, it is clear that the present invention implements and is not subject to the restrictions described above,
As long as the improvement of the various unsubstantialities that the method design that have employed the present invention is carried out with technical scheme, or the most improved by this
Bright design and technical scheme directly apply to other occasion, all within protection scope of the present invention.
Claims (4)
1. the encapsulating compound for condensation-proof shielded electric pump rosette, it is characterised in that: comprise the steps:
(1) low molecular weight diol is first prepared；
(2) reacting with excess aromatic isocyanate, generating isocyanates is the prepolymer of end group again；
(3) the same chain expansion of succinic acid of prepolymer, obtains thermoplastic elastomer.
2. according to a kind of encapsulating compound for condensation-proof shielded electric pump rosette described in claim 1, it is characterised in that: described
Dihydroxylic alcohols include ethylene glycol, propylene glycol.
3. the method for the encapsulating compound of the condensation-proof shielded electric pump rosette used described in claim 1 ~ 2, it is characterised in that:
Place backing plate bottom rosette, low molecular weight diol is placed on backing plate, add excess aromatic isocyanate, be subsequently adding
Butanediol, places more than 24 hours.
4. according to the method for a kind of encapsulating compound using condensation-proof shielded electric pump rosette described in claim 1 or 2, its feature
It is: described dihydroxylic alcohols includes ethylene glycol, propylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610542966.7A CN106189987A (en) | 2016-07-12 | 2016-07-12 | A kind of encapsulating compound for condensation-proof shielded electric pump rosette and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610542966.7A CN106189987A (en) | 2016-07-12 | 2016-07-12 | A kind of encapsulating compound for condensation-proof shielded electric pump rosette and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106189987A true CN106189987A (en) | 2016-12-07 |
Family
ID=57476339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610542966.7A Withdrawn CN106189987A (en) | 2016-07-12 | 2016-07-12 | A kind of encapsulating compound for condensation-proof shielded electric pump rosette and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106189987A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402742A (en) * | 1999-11-29 | 2003-03-12 | 汉高两合股份公司 | Adhesion promoters for monomer-free reactive polyurethanes |
| CN101550327A (en) * | 2008-04-03 | 2009-10-07 | 航天材料及工艺研究所 | High hardness high-toughness polyurethane casting compound and application thereof |
| CN104497257A (en) * | 2014-12-16 | 2015-04-08 | 山东一诺威聚氨酯股份有限公司 | Preparation method of double-component polyurethane heat insulation casting rubber for aluminum profile |
| CN105175674A (en) * | 2015-08-04 | 2015-12-23 | 航天材料及工艺研究所 | High hardness and high toughness polyurethane casting adhesive and application thereof |
-
2016
- 2016-07-12 CN CN201610542966.7A patent/CN106189987A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402742A (en) * | 1999-11-29 | 2003-03-12 | 汉高两合股份公司 | Adhesion promoters for monomer-free reactive polyurethanes |
| CN101550327A (en) * | 2008-04-03 | 2009-10-07 | 航天材料及工艺研究所 | High hardness high-toughness polyurethane casting compound and application thereof |
| CN104497257A (en) * | 2014-12-16 | 2015-04-08 | 山东一诺威聚氨酯股份有限公司 | Preparation method of double-component polyurethane heat insulation casting rubber for aluminum profile |
| CN105175674A (en) * | 2015-08-04 | 2015-12-23 | 航天材料及工艺研究所 | High hardness and high toughness polyurethane casting adhesive and application thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161207 |
|
| WW01 | Invention patent application withdrawn after publication |