CN104962225A - Epoxy adhesive for making wind-energy blade - Google Patents
Epoxy adhesive for making wind-energy blade Download PDFInfo
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- CN104962225A CN104962225A CN201510393770.1A CN201510393770A CN104962225A CN 104962225 A CN104962225 A CN 104962225A CN 201510393770 A CN201510393770 A CN 201510393770A CN 104962225 A CN104962225 A CN 104962225A
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Abstract
The invention discloses an epoxy adhesive for making a wind-energy blade. The epoxy adhesive is combined by a resin part and a curing agent part according to a weight ratio being 100:4, wherein the resin part comprises the raw materials in parts by weight: 50 parts to 70 parts of bisphenol-A epoxy resin, 0 to10 parts of bisphenol-F epoxy resin, 0 to 10 parts of 1,6-hexanediol diglycidyl ether, 10 parts to 20 parts of calcium carbonate, 5 parts to 10 parts of fumed silica, 0 to 5 parts of fiberglass and 0.01 part to 1 part of expended microsphere; the curing agent part comprises the raw materials in parts by weight: 20 parts to 40 parts of polyether amine D400, 20 parts to 30 parts of isophorone diamine, 20 parts to 40 parts of polyamide, 10 parts to 20 parts of calcium carbonate, 5 parts to 20 parts of fumed silica, 0 to 5 parts of fiberglass and 0.01 part to 1 part of expended microsphere. According to the epoxy adhesive disclosed by the invention, volume contraction, which is caused by curing, of the epoxy adhesive can be counteracted, the control on the volume contraction of the epoxy adhesive can be reliably and effectively achieved, and zero contraction and even appropriate expansion of the volume of the epoxy adhesive can be easily realized.
Description
Technical field
The present invention relates to epoxy adhesive, specifically a kind of manufacture wind power blade epoxy adhesive.
Background technology
The manufacturing processed of blade of wind-driven generator mainly, is first distinguished shaping upper and lower blade shell half body and is increased the shear beam of structural rigidity, then upper and lower blade shell half body and shear beam are bonded together by epoxy adhesive, form complete entirety.As can be seen here, epoxy adhesive has vital effect in the vane manufacturing of aerogenerator, and the quality of its performance directly affects yield rate and the service life of blade.
Manufacture epoxy adhesive used for blades of wind driven generator to mix primarily of the resin portion of certain proportioning and curing agent part; Wherein, resin portion is mainly major ingredient with bisphenol A type epoxy resin and bisphenol f type epoxy resin, is aided with other batching hybrid reaction and forms, and curing agent part is major ingredient with amine curing agent, be aided with other batching hybrid reaction forms.But this type of epoxy adhesive existing has the uncontrollable shrinkability of volume, this is especially particularly evident after being heating and curing.
Concrete, when manufacturing blade of wind-driven generator, upper and lower blade shell half body is shaping on mould, and shear beam is prefabricated in advance.Between shear beam and upper and lower blade shell half body, and upper and lower blade shell half body bonding site is each other coated with deployed epoxy adhesive respectively, then carries out the assembling of upper and lower blade shell half body and shear beam.Be heating and curing again after having assembled.But, in solidification process, just volumetric shrinkage can be there is in epoxy adhesive, and then can cause occurring some defects in their bonding site or the inside of epoxy adhesive, these defects are not enough to the qualification rate affecting blade when being small state, but in blade applications to aerogenerator after long service in, the expansion that the tiny flaw of blade bonding site just continues possibly under the effect of external force, finally cause the destruction of whole blade, even jeopardize the safety of aerogenerator other parts.
Along with country's wideling popularize wind power generation, because the deficiency of existing epoxy adhesive, the epoxy adhesive that volumetric shrinkage is researched and developed controlled in the basis of existing epoxy adhesive is extremely urgent.
Generally, can there is the volumetric shrinkage of about about 6% before curing afterwards in pure epoxy resin.Prepare wind power blade epoxy adhesive, a certain proportion of filler need be added in pure epoxy resin, but filler adds, very limited to the impact effect of volumetric shrinkage.Such as, add the filler of 25% in pure epoxy resin after, its volumetric shrinkage can be reduced to about 4.5%, but can not eliminate completely.
In prior art, have to disclose and add with Expanding Monomer NSOC the problem offsetting epoxy adhesive volumetric shrinkage, it adopts the mode of Expanding Monomer NSOC and bisphenol A epoxide resin copolymerization to obtain the epoxy adhesive of zero contraction, mechanism is, NSOC volumetric expansion in the process of ring-opening polymerization, can offset the volumetric shrinkage of epoxy resin.But, the preparation method of Expanding Monomer NSOC is very complicated, cost is high, in addition its add-on in epoxy adhesive system is large (when the mass ratio of NSOC and bisphenol A epoxide resin reaches 27.4%, epoxy resin volumetric shrinkage in the curing process could be offset completely), thus, this technology causes the epoxy adhesive cost preparing finished product high, and then causes the cost manufacturing wind power blade significantly to increase.
Summary of the invention
Goal of the invention of the present invention is: for the singularity of above-mentioned wind power blade manufacturing process and the deficiency of existing epoxy adhesive, provides the manufacture wind power blade epoxy adhesive that a kind of volumetric shrinkage is controlled, preparation cost is low.
The technical solution adopted in the present invention is, a kind of manufacture wind power blade epoxy adhesive, and it is combined by the weight ratio of 100:40 ~ 50 by resin portion and curing agent part; It is characterized in that, the proportioning raw materials of described resin portion calculates by following weight ratio:
The proportioning raw materials of described curing agent part calculates by following weight ratio:
As preferably, the add-on of the expended microsphere in described resin portion and curing agent part is respectively 0.01 ~ 0.5 part.
The invention has the beneficial effects as follows: above-mentioned epoxy adhesive is under the compatibleness guaranteed between each raw material and synergitic prerequisite, easily to obtain, low cost is that principle chooses raw material, expandable microballoon is added in formula, the cost of the epoxy adhesive be prepared from is low, the thermoplasticity housing of epoxy adhesive expended microsphere when being heating and curing softens, internal gas expands, and then offset epoxy adhesive owing to solidifying the volumetric shrinkage caused, reliably, effectively reach the control to epoxy adhesive volumetric shrinkage, like a cork zero contraction is realized to the volume of epoxy adhesive, the even expansion of appropriateness.The present invention is conducive to the Forming Quality reliably ensureing wind power blade, improves the service life of wind power blade, practical.
Embodiment:
The present invention is epoxy adhesive, for the manufacture of wind power blade (i.e. blade of wind-driven generator).Now enumerate 6 embodiments with tabular form, the proportioning raw materials in each embodiment is by weight calculating, specifically as shown in table 1.
The concrete component raw material proportioning data of table 1 embodiment of the present invention 1 to 6
Resin portion of the present invention and curing agent part are prepared respectively, press 100:40 ~ 50 (such as 100:42 both during use; Or 100:45; Also or 100:48) weight part mixes.
The preparation of resin portion is, prepares mixing equipment, joins in mixing equipment by the raw material of resin portion, carries out being fully mixed to evenly, in the process of mixing, vacuumizes the bubble eliminated in compound; The resin portion mixed is forced in product bucket by swager, seals for subsequent use.
The preparation of curing agent part is, prepares mixing equipment, joins in mixing equipment by the raw material of curing agent part, carries out being fully mixed to evenly, in the process of mixing, vacuumizes the bubble eliminated in compound; The curing agent part mixed is forced in product bucket by swager, seals for subsequent use.
The epoxy adhesive that the present invention obtains compares with the epoxy adhesive manufacturing wind power blade conventional at present, and their contrast properties is as shown in table 2.
Table 2 epoxy adhesive of the present invention and the performance comparison data commonly using epoxy adhesive at present
Claims (2)
1. manufacture a wind power blade epoxy adhesive, it is combined by the weight ratio of 100:40 ~ 50 by resin portion and curing agent part; It is characterized in that, the proportioning raw materials of described resin portion calculates by following weight ratio:
Bisphenol A type epoxy resin 50 ~ 70 parts,
Bisphenol f type epoxy resin 0 ~ 10 part,
1,6-hexanediol diglycidyl ether 0 ~ 10 part,
10 ~ 20 parts, calcium carbonate,
Aerosil 5 ~ 10 parts,
0 ~ 5 part, glass fibre,
Expended microsphere 0.01 ~ 1 part;
The proportioning raw materials of described curing agent part calculates by following weight ratio:
Polyetheramine D400 20 ~ 40 parts,
Isophorone diamine 20 ~ 30 parts,
Polymeric amide 20 ~ 40 parts,
10 ~ 20 parts, calcium carbonate,
Aerosil 5 ~ 20 parts,
0 ~ 5 part, glass fibre,
Expended microsphere 0.01 ~ 1 part.
2. wind power blade epoxy adhesive according to claim 1, is characterized in that, the add-on of the expended microsphere in described resin portion and curing agent part is respectively 0.01 ~ 0.5 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510393770.1A CN104962225A (en) | 2015-07-07 | 2015-07-07 | Epoxy adhesive for making wind-energy blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510393770.1A CN104962225A (en) | 2015-07-07 | 2015-07-07 | Epoxy adhesive for making wind-energy blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104962225A true CN104962225A (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510393770.1A Pending CN104962225A (en) | 2015-07-07 | 2015-07-07 | Epoxy adhesive for making wind-energy blade |
Country Status (1)
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| CN (1) | CN104962225A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732870A (en) * | 2020-07-04 | 2020-10-02 | 上海暄洋化工材料科技有限公司 | Low-shrinkage high-weather-resistance epoxy anticorrosive fireproof coating containing expansion monomer and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1426444A (en) * | 2000-04-28 | 2003-06-25 | 吴羽化学工业株式会社 | Heat-expandable macrosphere and process for producing same |
| CN101851481A (en) * | 2010-05-22 | 2010-10-06 | 东方电气集团东方汽轮机有限公司 | Epoxy resin adhesive for manufacturing blades of wind driven generator and preparation method thereof |
-
2015
- 2015-07-07 CN CN201510393770.1A patent/CN104962225A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1426444A (en) * | 2000-04-28 | 2003-06-25 | 吴羽化学工业株式会社 | Heat-expandable macrosphere and process for producing same |
| CN101851481A (en) * | 2010-05-22 | 2010-10-06 | 东方电气集团东方汽轮机有限公司 | Epoxy resin adhesive for manufacturing blades of wind driven generator and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732870A (en) * | 2020-07-04 | 2020-10-02 | 上海暄洋化工材料科技有限公司 | Low-shrinkage high-weather-resistance epoxy anticorrosive fireproof coating containing expansion monomer and preparation process thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151007 |
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| WD01 | Invention patent application deemed withdrawn after publication |