JP2021042663A5 - - Google Patents
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- Publication number
- JP2021042663A5 JP2021042663A5 JP2020190871A JP2020190871A JP2021042663A5 JP 2021042663 A5 JP2021042663 A5 JP 2021042663A5 JP 2020190871 A JP2020190871 A JP 2020190871A JP 2020190871 A JP2020190871 A JP 2020190871A JP 2021042663 A5 JP2021042663 A5 JP 2021042663A5
- Authority
- JP
- Japan
- Prior art keywords
- elastic modulus
- less
- storage elastic
- resin composition
- reinforcing
- 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.)
- Granted
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- 230000003014 reinforcing Effects 0.000 claims 9
- 239000004840 adhesive resin Substances 0.000 claims 6
- 239000000203 mixture Substances 0.000 claims 6
- 235000020127 ayran Nutrition 0.000 claims 4
- 239000000463 material Substances 0.000 claims 4
- 239000003822 epoxy resin Substances 0.000 claims 2
- 239000000835 fiber Substances 0.000 claims 2
- 239000011159 matrix material Substances 0.000 claims 2
- 229920000647 polyepoxide Polymers 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 229920001187 thermosetting polymer Polymers 0.000 claims 1
Claims (4)
貼り付けられた前記補強材および前記接着剤樹脂組成物を１００℃以上２００℃以下で５分以上６０分以下加熱する熱硬化工程と、
を含み、
前記貼付工程が、前記接着剤樹脂組成物を前記補強材の表面に塗布する工程を含み、
前記補強材が、前記マトリックス樹脂が未硬化のエポキシ樹脂を含むプリプレグであり、
前記接着剤樹脂組成物が、以下の物性：
（i）２５℃、１分、および３０分における周波数１Ｈｚでの、
a）貯蔵弾性率が６，０００Ｐａ未満の場合、損失正接ｔａｎδが１．１以上、または
ｂ）貯蔵弾性率が６，０００Ｐａ以上２５，０００Ｐａ以下の場合、損失正接ｔａｎδが０．８以上１．２未満、
を満たし、且つ
（ｉｉ）２５℃以上１５０℃以下で最低貯蔵弾性率を示し、かつ前記最低貯蔵弾性率が８００Ｐａ以上
を満たす、構造物を補強または補修する方法。 A sticking step of sticking a reinforcing material containing a reinforcing fiber and a matrix resin impregnated with the reinforcing fiber to a structure via an adhesive resin composition containing an uncured epoxy resin as a main component.
A thermosetting step of heating the attached reinforcing material and the adhesive resin composition at 100 ° C. or higher and 200 ° C. or lower for 5 minutes or longer and 60 minutes or shorter.
Including
The sticking step includes a step of applying the adhesive resin composition to the surface of the reinforcing material.
The reinforcing material is a prepreg containing an epoxy resin in which the matrix resin is uncured.
The adhesive resin composition has the following physical characteristics:
(I) at a frequency of 1 Hz at 25 ° C. for 1 minute and 30 minutes.
a) Loss tangent tan δ of 1.1 or more when the storage elastic modulus is less than 6,000 Pa, or b) Loss tangent tan δ of 0.8 or more when the storage elastic modulus is 6,000 Pa or more and 25,000 Pa or less 1. Less than 2,
(Ii) A method for reinforcing or repairing a structure, which exhibits a minimum storage elastic modulus at 25 ° C. or higher and 150 ° C. or lower, and satisfies the minimum storage elastic modulus of 800 Pa or more.
（i）２５℃、１分、および３０分における周波数１Ｈｚでの、貯蔵弾性率が６，０００Ｐａ未満の場合、損失正接ｔａｎδが１．１以上１．３以下、を満たし、且つ
（ｉｉ）２５℃以上１５０℃以下で最低貯蔵弾性率を示し、前記最低貯蔵弾性率が８００Ｐａ以上１３７０Ｐａ以下
を満たす、請求項１または２に記載の構造物を補強または補修する方法。 The adhesive resin composition has the following physical characteristics:
(I) When the storage elastic modulus is less than 6,000 Pa at a frequency of 1 Hz at 25 ° C. for 1 minute and 30 minutes, the loss tangent tan δ satisfies 1.1 or more and 1.3 or less.
(Ii) Shows the minimum storage elastic modulus at 25 ° C. or higher and 150 ° C. or lower, and the minimum storage elastic modulus is 800 Pa or more and 1370 Pa or less.
A method for reinforcing or repairing a structure according to claim 1 or 2, which satisfies the above conditions.
Reinforce the structure according to any one of claims 1 to 3, wherein the structure has non-landing and the adhesive resin composition is applied so as to even out the non-landing in the pasting step. Or how to repair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020190871A JP7060663B2 (en) | 2020-11-17 | 2020-11-17 | How to reinforce or repair structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020190871A JP7060663B2 (en) | 2020-11-17 | 2020-11-17 | How to reinforce or repair structures |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016152097A Division JP6797591B2 (en) | 2016-08-02 | 2016-08-02 | How to reinforce or repair structures |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021042663A JP2021042663A (en) | 2021-03-18 |
| JP2021042663A5 true JP2021042663A5 (en) | 2021-04-30 |
| JP7060663B2 JP7060663B2 (en) | 2022-04-26 |
Family
ID=74862203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020190871A Active JP7060663B2 (en) | 2020-11-17 | 2020-11-17 | How to reinforce or repair structures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7060663B2 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2717791B2 (en) * | 1988-01-29 | 1998-02-25 | 東燃株式会社 | Building reinforcement method using carbon fiber reinforced plastic plate |
| JP4529534B2 (en) * | 2004-04-28 | 2010-08-25 | 東レ株式会社 | Thermosetting resin composition for fiber reinforced composite materials |
| DE112006000871T5 (en) * | 2005-04-13 | 2008-06-12 | Mitsubishi Plastics, Inc. | Double-sided adhesive film and laminate plate |
| WO2008075604A1 (en) * | 2006-12-20 | 2008-06-26 | As R & D Llc | Organic damping material |
| JP2010007023A (en) * | 2008-06-30 | 2010-01-14 | Three M Innovative Properties Co | Curable adhesive sheet |
| JP2010057462A (en) * | 2008-09-08 | 2010-03-18 | Toray Ind Inc | Prepreg for fishing rod tip, fiber-reinforced composite material for fishing rod tip, solid body for fishing rod tip, tubular body for fishing rod tip, and fishing rod tip |
| JP6289311B2 (en) * | 2014-08-29 | 2018-03-07 | 積水化成品工業株式会社 | Adhesive composition, adhesive sheet, adhesion method for adherend and composite material |
| JP2016069812A (en) * | 2014-09-26 | 2016-05-09 | 積水化成品工業株式会社 | Concrete structure reinforcement method and continuous fiber sheet-containing sticking/adhesion gel sheet used in the method |
| JP2016069811A (en) * | 2014-09-26 | 2016-05-09 | 積水化成品工業株式会社 | Concrete structure reinforcement method and sticking/adhesion gel sheet used in the method |
| US20180230337A1 (en) * | 2014-10-20 | 2018-08-16 | Sekisui Plastics Co., Ltd. | Tacky gel sheet having adhesive applications, method for producing same, method for fixing a pair of objects, and composite material |
-
2020
- 2020-11-17 JP JP2020190871A patent/JP7060663B2/en active Active
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