PL416974A1 - Method for producing polythiourethane microcapsules, containing isocyanates which constitute the repairing substance, intended for self-repairing epoxy composites and method for producing self-repairing epoxy composites - Google Patents
Method for producing polythiourethane microcapsules, containing isocyanates which constitute the repairing substance, intended for self-repairing epoxy composites and method for producing self-repairing epoxy compositesInfo
- Publication number
- PL416974A1 PL416974A1 PL416974A PL41697416A PL416974A1 PL 416974 A1 PL416974 A1 PL 416974A1 PL 416974 A PL416974 A PL 416974A PL 41697416 A PL41697416 A PL 41697416A PL 416974 A1 PL416974 A1 PL 416974A1
- Authority
- PL
- Poland
- Prior art keywords
- mixture
- microcapsules
- self
- isocyanate
- producing
- Prior art date
Links
- 239000003094 microcapsule Substances 0.000 title abstract 9
- 239000012948 isocyanate Substances 0.000 title abstract 6
- 150000002513 isocyanates Chemical class 0.000 title abstract 6
- 239000000126 substance Substances 0.000 title abstract 5
- 239000004593 Epoxy Substances 0.000 title abstract 4
- 239000002131 composite material Substances 0.000 title abstract 4
- 229920002578 polythiourethane polymer Polymers 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 239000000203 mixture Substances 0.000 abstract 8
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 3
- 150000003573 thiols Chemical class 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 239000012153 distilled water Substances 0.000 abstract 2
- 239000003822 epoxy resin Substances 0.000 abstract 2
- 239000008240 homogeneous mixture Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 229920000647 polyepoxide Polymers 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910015900 BF3 Inorganic materials 0.000 abstract 1
- 229920000084 Gum arabic Polymers 0.000 abstract 1
- 241000978776 Senegalia senegal Species 0.000 abstract 1
- 235000010489 acacia gum Nutrition 0.000 abstract 1
- 239000000205 acacia gum Substances 0.000 abstract 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 abstract 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 abstract 1
- 239000004848 polyfunctional curative Substances 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000011527 polyurethane coating Substances 0.000 abstract 1
- 150000003512 tertiary amines Chemical class 0.000 abstract 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób wytwarzania mikrokapsułek politiouretanowych zawierających izocyjaniany stanowiące substancję naprawczą, przeznaczonych do samonaprawiających się kompozytów epoksydowych, polega na tym, że sporządza się mieszaninę chlorobenzenu z izocyjanianem, który w warunkach naturalnych jest cieczą i stanowi jednocześnie substancję naprawczą i składnik politiouretanowej powłoki mikrokapsułek, następnie mieszaninę tę dodaje się do roztworu gumy arabskiej w wodzie destylowanej, po czym wkrapla się tiol, podnosi się temperaturę mieszaniny do 60°C i całość miesza najpierw w tej temperaturze w czasie 1 godziny, a następnie w temperaturze pokojowej w czasie 1-2 godzin, po czym otrzymane mikrokapsułki w postaci izocyjanianu uwięzionego w otoczce politiouretanowej odwirowuje się i suszy. Sposób ten polega także na tym, że najpierw sporządza się jednorodną mieszaninę chlorobenzenu z prepolimerem tiouretanowym stanowiącym prepolimer powłoki politiouretanowej mikrokapsułek, w temperaturze 50°C, następnie mieszaninę tę miesza się z izocyjanianem stanowiącym substancję naprawczą będącym w warunkach normalnych cieczą i całość dodaje do roztworu gumy arabskiej w wodzie destylowanej, po czym wkrapla się tiol, podnosi się temperaturę mieszaniny do 60°C i całość miesza najpierw w tej temperaturze w czasie 1 godziny, a następnie w temperaturze pokojowej w czasie 1-2 godzin, po czym otrzymane mikrokapsułki w postaci izocyjanianu uwięzionego w otoczce politiouretanowej odwirowuje się i suszy. Sposób wytwarzania samonaprawiających się kompozytów epoksydowych, w drodze zmieszania żywicy epoksydowej z mikrokapsułkami zawierającymi substancję naprawczą oraz z utwardzaczem stosowanym do sieciowania żywicy epoksydowej, jak bezwodnik kwasu karboksylowego, amina I, II lub III-rzędowa, tiol, addukt fluorku boru, aż do uzyskania jednorodnej mieszaniny i wylania otrzymanej mieszaniny do formy silikonowej, charakteryzuje się tym, że jako mikrokapsułki z substancją naprawczą stosuje się mikrokapsułki otrzymane opisanymi wyżej sposobami.The subject of the application is a method of producing polythiourethane microcapsules containing isocyanate as a repair substance, intended for self-healing epoxy composites, it consists in preparing a mixture of chlorobenzene with isocyanate, which in natural conditions is a liquid and at the same time is a repair substance and a component of polythiourethane coating of microcapsules, then this mixture is added to a solution of gum arabic in distilled water, then thiol is added dropwise, the temperature of the mixture is raised to 60 ° C and the mixture is stirred first at this temperature for 1 hour, and then at room temperature for 1-2 hours, afterwards the obtained microcapsules in the form of isocyanate entrapped in a polythiourethane coating are centrifuged and dried. This method also consists in first preparing a homogeneous mixture of chlorobenzene with a thiourethane prepolymer as a prepolymer of a poly-polyurethane coating of microcapsules at 50 ° C, then this mixture is mixed with isocyanate as a corrective substance being a liquid and the whole is added to the gum solution Arabian in distilled water, after which the thiol is added dropwise, the temperature of the mixture is raised to 60 ° C and the mixture is stirred first at this temperature for 1 hour, and then at room temperature for 1-2 hours, after which the obtained microcapsules in the form of isocyanate trapped in a polyurethane sheath, centrifuged and dried. A method for producing self-healing epoxy composites by mixing epoxy resin with a repair microcapsule and with a hardener used to crosslink epoxy resin, such as carboxylic anhydride, I, II or tertiary amine, thiol, boron fluoride adduct until homogeneous mixtures and pouring the resulting mixture into a silicone mold, characterized in that the microcapsules with the repair substance are microcapsules obtained by the methods described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL416974A PL416974A1 (en) | 2016-04-25 | 2016-04-25 | Method for producing polythiourethane microcapsules, containing isocyanates which constitute the repairing substance, intended for self-repairing epoxy composites and method for producing self-repairing epoxy composites |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL416974A PL416974A1 (en) | 2016-04-25 | 2016-04-25 | Method for producing polythiourethane microcapsules, containing isocyanates which constitute the repairing substance, intended for self-repairing epoxy composites and method for producing self-repairing epoxy composites |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL416974A1 true PL416974A1 (en) | 2017-11-06 |
Family
ID=60190386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL416974A PL416974A1 (en) | 2016-04-25 | 2016-04-25 | Method for producing polythiourethane microcapsules, containing isocyanates which constitute the repairing substance, intended for self-repairing epoxy composites and method for producing self-repairing epoxy composites |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL416974A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551288A (en) * | 2019-10-04 | 2019-12-10 | 汤杰 | Room-temperature self-repairing material and preparation method thereof |
| PL443154A1 (en) * | 2022-12-14 | 2024-06-17 | Centralny Instytut Ochrony Pracy - Państwowy Instytut Badawczy | Polymer microcapsules with self-healing properties |
-
2016
- 2016-04-25 PL PL416974A patent/PL416974A1/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551288A (en) * | 2019-10-04 | 2019-12-10 | 汤杰 | Room-temperature self-repairing material and preparation method thereof |
| CN110551288B (en) * | 2019-10-04 | 2021-11-23 | 汤杰 | Room-temperature self-repairing material and preparation method thereof |
| PL443154A1 (en) * | 2022-12-14 | 2024-06-17 | Centralny Instytut Ochrony Pracy - Państwowy Instytut Badawczy | Polymer microcapsules with self-healing properties |
| PL248209B1 (en) * | 2022-12-14 | 2025-11-03 | Centralny Inst Ochrony Pracy Panstwowy Inst Badawczy | Polymer microcapsules with self-healing properties |
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