CN109265650A - The production technology of flame-retardant polyurethane potting compound - Google Patents
The production technology of flame-retardant polyurethane potting compound Download PDFInfo
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- CN109265650A CN109265650A CN201811123617.7A CN201811123617A CN109265650A CN 109265650 A CN109265650 A CN 109265650A CN 201811123617 A CN201811123617 A CN 201811123617A CN 109265650 A CN109265650 A CN 109265650A
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- mixing
- kettle
- flame
- potting compound
- production technology
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- 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
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention provides a kind of production technology of flame-retardant polyurethane potting compound, include the following steps: 1) to prepare raw material: castor oil 280 according to following parts by weight；4010 defoaming agents 2；Black pigment 1；4075 defoaming agents 1；Organotin catalysts 0.1；Aluminium hydroxide 100；110 dispersing agents 2；Silicon powder filler 315；307 levelling agents 0.1；Fire retardant 300；2) it feeds intake；3) mixing；4) abrasive material；5) it refines.The flame-retardant polyurethane potting compound shrinks small when having the advantage that 1, solidification；2, excellent electrical properties；3, function admirable is soaked；4, cold cycling is not easy to crack；5, Tg point is low, and electrical property variation is smaller after being heated；6, hardness is low, can preferably protect component not by internal stress drawing crack；7, excellent fireproof performance；8, Tg point is low.
Description
Technical field
The present invention relates to potting compound technical fields, and in particular to a kind of production technology of flame-retardant polyurethane potting compound.
Background technique
Epoxide resin encapsulation material in the prior art is primarily present following deficiency: 1, the hardness of epoxide resin encapsulation material is big,
Internal stress is big, damages to component larger；2, epoxide resin encapsulation material Tg point is heated to be easy to soften at 30-50 DEG C, electrical property
Sharply decline；3, epoxide resin encapsulation material hardness adjustable range is smaller, and under normal circumstances, hardness is all bigger；4, epoxy resin
Potting compound curing time is generally relatively slower, at least one hour to more than ten hour.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the present invention provides a kind of productions of flame-retardant polyurethane potting compound
Technique.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
The production technology of flame-retardant polyurethane potting compound, the production technology include the following steps:
1) prepare raw material according to following parts by weight:
2) it feeds intake:
Successively according to castor oil, 4010 defoaming agents, black pigment, 4075 defoaming agents, organotin catalysts, aluminium hydroxide,
110 dispersing agents, silicon powder filler, 307 levelling agents and fire retardant sequence raw material are put into mixing kettle；
3) mixing:
By raw material in mixing kettle, stirring is mixed them thoroughly uniformly；
4) abrasive material:
Mixing kettle mixing viscous body is passed through into pipeline, abrasive material to refining kettle；
5) it refines:
5.1) by the mixture after grinding, refining kettle is pumped by pipeline, heating opens and stirs and vacuumize；
5.2) refining kettle is controlled, 120 ± 10 DEG C of temperature, vacuum degree≤- 0.086MPa are kept, continues 5-6h；
5.3) viscosimetric analysis before blowing, if viscosity be lower than 2800mPas, be added diluent adjustment viscosity until >=
2800mPa·s；
5.4) after measurement is qualified, cool down to refining kettle, after cooling to room temperature, carry out blowing.
Compared with prior art, receipts when flame-retardant polyurethane potting compound provided by the invention has the advantage that 1, solidification
It reduces；2, excellent electrical properties；3, function admirable is soaked；4, cold cycling is not easy to crack；5, Tg point is low, be heated after electrical property variation compared with
It is small；6, hardness is low, can preferably protect component not by internal stress drawing crack；7, excellent fireproof performance；8, Tg point is low.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below will
In conjunction with preferred embodiment, the present invention is further explained.
In the present embodiment, black pigment uses carbon black powder.
The production technology of flame-retardant polyurethane potting compound, the production technology include the following steps:
1) prepare raw material according to following parts by weight:
2) it feeds intake:
Successively according to castor oil, 4010 defoaming agents, black pigment, 4075 defoaming agents, organotin catalysts, aluminium hydroxide,
110 dispersing agents, silicon powder filler, 307 levelling agents and fire retardant sequence raw material are put into mixing kettle；
3) mixing:
By raw material in mixing kettle, stirring is mixed them thoroughly uniformly；
4) abrasive material:
Mixing kettle mixing viscous body is passed through into pipeline, abrasive material to refining kettle；
5) it refines:
5.1) by the mixture after grinding, refining kettle is pumped by pipeline, heating opens and stirs and vacuumize；
5.2) refining kettle is controlled, 120 ± 10 DEG C of temperature, vacuum degree≤- 0.086MPa are kept, continues 5-6h；
5.3) viscosimetric analysis before blowing, if viscosity be lower than 2800mPas, be added diluent adjustment viscosity until >=
2800mPa·s；
5.4) after measurement is qualified, cool down to refining kettle, after cooling to room temperature, carry out blowing.
Polyurethane filling material hardness prepared by the present invention is smaller, and internal stress is smaller, damages to component smaller；Polyurethane fills
Envelope material Tg point is heated that firmness change is less likely to occur at -30 DEG C to -40 DEG C, and electrical property variation is slow；Polyurethane filling material hardness
Adjustable range is very big, is adjustable hardness from Shao A to Shao D, range is very big；The controlled range of polyurethane filling material curing time is very wide
It is general, it can be differed from a few minutes to a few houres.
Embodiment 1
The production technology of flame-retardant polyurethane potting compound, the production technology include the following steps:
1) prepare raw material according to following parts by weight:
2) it feeds intake:
Successively according to castor oil, 4010 defoaming agents, black pigment, 4075 defoaming agents, organotin catalysts, aluminium hydroxide,
110 dispersing agents, silicon powder filler, 307 levelling agents and fire retardant sequence raw material are put into mixing kettle；
3) mixing:
By raw material in mixing kettle, stirring is mixed them thoroughly uniformly；
4) abrasive material:
Mixing kettle mixing viscous body is passed through into pipeline, abrasive material to refining kettle；
5) it refines:
5.1) by the mixture after grinding, refining kettle is pumped by pipeline, heating opens and stirs and vacuumize；
5.2) refining kettle is controlled, 120 DEG C of temperature, vacuum degree≤- 0.086MPa are kept, continues 6h；
5.3) viscosimetric analysis before blowing, if viscosity be lower than 2800mPas, be added diluent adjustment viscosity until >=
2800mPa·s；
5.4) after measurement is qualified, cool down to refining kettle, after cooling to room temperature, carry out blowing.
By the technology of flame-retardant polyurethane potting compound and epoxide resin encapsulation material in the prior art obtained in embodiment 1
Index compares, as shown in the table:
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (1)
1. the production technology of flame-retardant polyurethane potting compound, which is characterized in that the production technology includes the following steps:
1) prepare raw material according to following parts by weight:
2) it feeds intake:
Successively according to castor oil, 4010 defoaming agents, black pigment, 4075 defoaming agents, organotin catalysts, aluminium hydroxide, 110 points
Powder, silicon powder filler, 307 levelling agents and fire retardant sequence raw material are put into mixing kettle；
3) mixing:
By raw material in mixing kettle, stirring is mixed them thoroughly uniformly；
4) abrasive material:
Mixing kettle mixing viscous body is passed through into pipeline, abrasive material to refining kettle；
5) it refines:
5.1) by the mixture after grinding, refining kettle is pumped by pipeline, heating opens and stirs and vacuumize；
5.2) refining kettle is controlled, 120 ± 10 DEG C of temperature, vacuum degree≤- 0.086MPa are kept, continues 5-6h；
5.3) viscosimetric analysis before blowing, if viscosity be lower than 2800mPas, be added diluent adjustment viscosity until >=
2800mPa·s；
5.4) after measurement is qualified, cool down to refining kettle, after cooling to room temperature, carry out blowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123617.7A CN109265650A (en) | 2018-09-26 | 2018-09-26 | The production technology of flame-retardant polyurethane potting compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123617.7A CN109265650A (en) | 2018-09-26 | 2018-09-26 | The production technology of flame-retardant polyurethane potting compound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109265650A true CN109265650A (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811123617.7A Withdrawn CN109265650A (en) | 2018-09-26 | 2018-09-26 | The production technology of flame-retardant polyurethane potting compound |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928377A (en) * | 2010-09-10 | 2010-12-29 | 烟台德邦科技有限公司 | Flame retardant polyurethane pouring sealant, preparation method thereof and using method thereof |
| CN102102006A (en) * | 2010-12-20 | 2011-06-22 | 东莞市宏达聚氨酯有限公司 | Method for preparing bi-component polyurethane pouring sealant and product thereof |
| CN102643623A (en) * | 2012-04-05 | 2012-08-22 | 艾伦塔斯电气绝缘材料(珠海)有限公司 | Polyurethane resin potting adhesive with high bonding strength and preparation method thereof |
| CN203916650U (en) * | 2014-04-25 | 2014-11-05 | 安徽安大华泰新材料有限公司 | A kind of preparation facilities of thermosensitive type polyurethane pouring sealant component |
| CN104263219A (en) * | 2014-09-16 | 2015-01-07 | 潍坊市宏源防水材料有限公司 | Novel production device and process of polyurethane waterproof paint |
-
2018
- 2018-09-26 CN CN201811123617.7A patent/CN109265650A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928377A (en) * | 2010-09-10 | 2010-12-29 | 烟台德邦科技有限公司 | Flame retardant polyurethane pouring sealant, preparation method thereof and using method thereof |
| CN102102006A (en) * | 2010-12-20 | 2011-06-22 | 东莞市宏达聚氨酯有限公司 | Method for preparing bi-component polyurethane pouring sealant and product thereof |
| CN102643623A (en) * | 2012-04-05 | 2012-08-22 | 艾伦塔斯电气绝缘材料(珠海)有限公司 | Polyurethane resin potting adhesive with high bonding strength and preparation method thereof |
| CN203916650U (en) * | 2014-04-25 | 2014-11-05 | 安徽安大华泰新材料有限公司 | A kind of preparation facilities of thermosensitive type polyurethane pouring sealant component |
| CN104263219A (en) * | 2014-09-16 | 2015-01-07 | 潍坊市宏源防水材料有限公司 | Novel production device and process of polyurethane waterproof paint |
Non-Patent Citations (6)
| Title |
|---|
| 山西省化工研究所: "《聚氨酯弹性体手册》", 31 January 2001, 化学工业出版社 * |
| 张学敏，等: "《涂料与涂装技术》", 31 January 2006, 化学工业出版社 * |
| 曹亚琴，等: "《电工材料应用手册》", 31 March 1999, 机械工业出版社 * |
| 李三军: "聚氨酯灌封胶的技术进展", 《化工新型材料》 * |
| 武应涛，等: "LG-35聚氨酯灌封绝缘材料的研制", 《合成橡胶工业》 * |
| 蔡干，等: "《有机精细化学品实验》", 30 November 1997, 化学工业出版社 * |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190125 |
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| WW01 | Invention patent application withdrawn after publication |