CN103740323B - A kind of New LED soft lamp bar organic silicon potting adhesive and preparation method thereof - Google Patents
A kind of New LED soft lamp bar organic silicon potting adhesive and preparation method thereof Download PDFInfo
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- CN103740323B CN103740323B CN201310738417.3A CN201310738417A CN103740323B CN 103740323 B CN103740323 B CN 103740323B CN 201310738417 A CN201310738417 A CN 201310738417A CN 103740323 B CN103740323 B CN 103740323B
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Abstract
The present invention discloses a kind of New LED soft lamp bar organic silicon potting adhesive and preparation method thereof, this organic silicon potting adhesive is a kind of organic silicon potting adhesive of add-on type, and its composition of raw materials is made up of each component of following parts by weight: base-material 95 ~ 110 parts, modification MQ resin 15 ~ 25 parts, linking agent 5 ~ 10 parts, catalyzer 0.05 ~ 0.2 part, 0.1 ~ 0.5 part, inhibitor and tackifier 1 ~ 2 part.New LED of the present invention soft lamp bar organic silicon potting adhesive, it is a kind of additional organosilicon joint sealant, by screening and the dosage optimization of each component in formula, products obtained therefrom has the feature of resisting etiolation, can high temperature resistantly not turn yellow, and cohesiveness is good, transmittance is good, environmental protection no coupling product, and tensile property, tear strength etc. are all fine.
Description
Technical field
The present invention relates to flexible LED lamp bar technical field, particularly relate to flexible LED lamp bar organic silicon potting adhesive, be specifically related to one and have significantly anti-, particularly relate to a kind of New LED soft lamp bar organic silicon potting adhesive.
Background technology
Soft lamp bar has another name called LED, shape of product is just as belt, and its application widely, is applicable to the decorations such as automobile decoration, direction board, advertising signboard, wine cabinet, Jewelry cabinet, public place of entertainment, path and profile mark, illumination, by the combination of different LED colors, represent perfect visual effect.
Popularizing along with flexible LED lamp bar, increasing manufacturer is faced with the problem how selecting a suitable flexible LED lamp bar joint sealant.
At present, joint sealant mainly epoxy resin embedding adhesive, polyurethane pouring sealant and the organic silicon potting adhesive that on market, flexible LED lamp bar is conventional, these three kinds of joint sealants respectively have its advantage, but also all there is certain defect, as conventional epoxy resin embedding adhesive will turn yellow by high temperature, not only affect the see-through of LED, also have impact on aesthetic property; The hardness of polyurethane pouring sealant cannot be accomplished very low, and product only can be applicable to drip glue-type or the soft lamp bar of half-covering tube type, and along with the reduction of temperature, larger change appears in the snappiness of lamp bar; Its cohesiveness of organic silicon potting adhesive is poor etc.
What organic silicon potting adhesive was commonly used now is condensed type, and condensed type has by product generation in the reaction, is unfavorable for environmental protection.
Organic silicon potting adhesive is as a kind of trend of flexible LED lamp bar joint sealant, and research and development high-performance and the good organic silicon potting adhesive of cohesiveness is the problem that the industry need solve, has very large challenge, and have very high marketable value.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of environmental protection, anti-yellowing change, cohesiveness is good, and the add-on type flexible LED lamp bar organic silicon potting adhesive that light transmission is good.
Another object of the present invention is to provide the preparation method of above-mentioned flexible LED lamp bar organic silicon potting adhesive.
Above-mentioned purpose of the present invention is achieved by following scheme:
A kind of New LED soft lamp bar organic silicon potting adhesive, this organic silicon potting adhesive is a kind of organic silicon potting adhesive of add-on type, and its composition of raw materials is made up of each component of following parts by weight:
In above-mentioned raw materials formula, described base-material is made up of base-material 1 and base-material 2, and the structural formula of described base-material 1 is as shown in logical formula I:
In above-mentioned formula I, a=400 ~ 600, preferably 500;
The structural formula of described base-material 2 is as shown in logical formula II:
In above-mentioned formula II, b=90 ~ 110, preferably 100;
In the base-material of above-mentioned raw materials formula, the weight ratio of base-material 1 and base-material 2 is 2:1.
In above-mentioned raw materials formula, modification MQ resin plays the effect of reinforcement; Described modification MQ resin is commercially available methyl vinyl MQ resin.
In above-mentioned raw materials formula, the structural formula of linking agent is as shown in logical formula III:
In above-mentioned formula III, c=15 ~ 25, preferred c=20; D=5 ~ 15, preferred d=10.
In above-mentioned raw materials formula, catalyzer is Karst platinum catalyst [chemical name is platinum (O) divinyl tetramethyl disiloxane solution], and platinum content is 3000ppm.
In above-mentioned raw materials formula, inhibitor adopts commercially available any one alkynol class inhibitor all can realize the present invention, preferred ethyl acetylene-3-alcohol, 1-hexin-3-alcohol or 2-propine-1-alcohol.
In above-mentioned raw materials formula, tackifier play the effect improving product cohesiveness (tack), adopt commercially available silane KH560 or silane KH570; In order to overcome the problem of existing flexible LED lamp bar organic silicon potting adhesive bad adhesion, simultaneously for the feature of additional organosilicon joint sealant of the present invention, after the present inventor has carried out scheme optimization and screening to a great selection of tackifier selected, find that tackifier adopt commercially available silane KH560 or silane KH570, other compositions can filled a prescription with the present invention play arranging effect well, and the cohesiveness of product also improves greatly.
The present inventor is also optimized the consumption of above-mentioned raw materials formula, and the formula each component consumption after optimization is as follows:
The present invention also provides the preparation method of above-mentioned a kind of New LED soft lamp bar organic silicon potting adhesive, and this preparation method comprises the steps:
According to above-mentioned formula, by first to base-material, modification MQ resin, linking agent, catalyzer, inhibitor and tackifier mixing and stirring, then vacuumizing and defoaming, then after embedding, be cured process, then prepare required New LED soft lamp bar organic silicon potting adhesive.
In above-mentioned preparation method, the vacuum tightness that vacuumizing and defoaming adopts is-0.095Mpa.
In above-mentioned preparation method, solidification treatment temperature used is 80 DEG C, and set time is 15min.
Compared with prior art, the present invention has following beneficial effect:
New LED of the present invention soft lamp bar organic silicon potting adhesive, it is a kind of additional organosilicon joint sealant, by screening and the dosage optimization of each component in formula, products obtained therefrom has the feature of resisting etiolation, can high temperature resistantly not turn yellow, and cohesiveness is good, transmittance is good, environmental protection no coupling product, and tensile property, tear strength etc. are all fine.
Embodiment
Below in conjunction with specific embodiment the present invention done and describe further, but specific embodiment does not do any restriction to the present invention.
Embodiment 1
A kind of New LED soft lamp bar organic silicon potting adhesive of the present embodiment, this organic silicon potting adhesive is a kind of organic silicon potting adhesive of add-on type, and its composition of raw materials is made up of each component of following parts by weight:
In above-mentioned raw materials formula, described base-material is made up of base-material 1 and base-material 2, and the structural formula of described base-material 1 is as shown in logical formula I:
In above-mentioned formula I, a=600, preferably 500;
The structural formula of described base-material 2 is as shown in logical formula II:
In above-mentioned formula II, b=90;
In the base-material of above-mentioned raw materials formula, the weight ratio of base-material 1 and base-material 2 is 2:1.
In above-mentioned raw materials formula, modification MQ resin is commercially available methyl vinyl MQ resin.
In above-mentioned raw materials formula, the structural formula of linking agent is as shown in logical formula III:
In above-mentioned formula III, c=15, d=14, preferred d=10.
In above-mentioned raw materials formula, catalyzer is Karst platinum catalyst, and platinum content is 3000ppm.
In above-mentioned raw materials formula, inhibitor adopts commercially available ethyl acetylene-3-alcohol.
In above-mentioned raw materials formula, tackifier adopt commercially available silane KH560.
The preparation method of above-mentioned a kind of New LED soft lamp bar organic silicon potting adhesive, comprises the steps:
According to above-mentioned formula, by first to base-material, modification MQ resin, linking agent, catalyzer, inhibitor and tackifier mixing and stirring, then vacuumizing and defoaming, then after embedding, be cured process, then prepare required New LED soft lamp bar organic silicon potting adhesive.
In above-mentioned preparation method, the vacuum tightness that vacuumizing and defoaming adopts is-0.095Mpa.
In above-mentioned preparation method, solidification treatment temperature used is 80 DEG C, and set time is 15min.
Embodiment 2
A kind of New LED soft lamp bar organic silicon potting adhesive of the present embodiment, this organic silicon potting adhesive is a kind of organic silicon potting adhesive of add-on type, and its composition of raw materials is made up of each component of following parts by weight:
In above-mentioned raw materials formula, described base-material is made up of base-material 1 and base-material 2, and the structural formula of described base-material 1 is as shown in logical formula I:
In above-mentioned formula I, a=400;
The structural formula of described base-material 2 is as shown in logical formula II:
In above-mentioned formula II, b=110;
In the base-material of above-mentioned raw materials formula, the weight ratio of base-material 1 and base-material 2 is 2:1.
In above-mentioned raw materials formula, modification MQ resin is commercially available methyl vinyl MQ resin.
In above-mentioned raw materials formula, the structural formula of linking agent is as shown in logical formula III:
In above-mentioned formula III, c=25, d=5.
In above-mentioned raw materials formula, catalyzer is Karst platinum catalyst, and platinum content is 3000ppm.
In above-mentioned raw materials formula, inhibitor adopts commercially available 1-hexin-3-alcohol.
In above-mentioned raw materials formula, tackifier adopt commercially available silane KH570.
The preparation method of above-mentioned a kind of New LED soft lamp bar organic silicon potting adhesive, comprises the steps:
According to above-mentioned formula, by first to base-material, modification MQ resin, linking agent, catalyzer, inhibitor and tackifier mixing and stirring, then vacuumizing and defoaming, then after embedding, be cured process, then prepare required New LED soft lamp bar organic silicon potting adhesive.
In above-mentioned preparation method, the vacuum tightness that vacuumizing and defoaming adopts is-0.095Mpa.
In above-mentioned preparation method, solidification treatment temperature used is 80 DEG C, and set time is 15min.
Embodiment 3
A kind of New LED soft lamp bar organic silicon potting adhesive of the present embodiment, this organic silicon potting adhesive is a kind of organic silicon potting adhesive of add-on type, and its composition of raw materials is made up of each component of following parts by weight:
In above-mentioned raw materials formula, described base-material is made up of base-material 1 and base-material 2, and the structural formula of described base-material 1 is as shown in logical formula I:
In above-mentioned formula I, a=500;
The structural formula of described base-material 2 is as shown in logical formula II:
In above-mentioned formula II, b=100;
In the base-material of above-mentioned raw materials formula, the weight ratio of base-material 1 and base-material 2 is 2:1.
In above-mentioned raw materials formula, modification MQ resin is commercially available methyl vinyl MQ resin.
In above-mentioned raw materials formula, the structural formula of linking agent is as shown in logical formula III:
In above-mentioned formula III, c=20; D==10.
In above-mentioned raw materials formula, catalyzer is Karst platinum catalyst, and platinum content is 3000ppm.
In above-mentioned raw materials formula, inhibitor adopts commercially available 2-propine-1-alcohol.
In above-mentioned raw materials formula, tackifier adopt commercially available silane KH560.
The preparation method of above-mentioned a kind of New LED soft lamp bar organic silicon potting adhesive, comprises the steps:
According to above-mentioned formula, by first to base-material, modification MQ resin, linking agent, catalyzer, inhibitor and tackifier mixing and stirring, then vacuumizing and defoaming, then after embedding, be cured process, then prepare required New LED soft lamp bar organic silicon potting adhesive.
In above-mentioned preparation method, the vacuum tightness that vacuumizing and defoaming adopts is-0.095Mpa.
In above-mentioned preparation method, solidification treatment temperature used is 80 DEG C, and set time is 15min.
Embodiment 4 performance test
The flexible LED lamp bar organic silicon potting adhesive of embodiment 1, embodiment 2 and embodiment 3 is carried out performance test, and performance test comprises following content:
(1) transmittance: test according to GB/T2410-2008;
(2) tensile strength: test by GB/T528-1998;
(3) tear strength: test by GB/T528-1999;
(4) resisting etiolation: by flexible LED lamp bar organic silicon potting adhesive in an oven, toasts 90 days at 90 DEG C;
(5) cohesiveness: test by GB16776 and GB/T13477.
The performance test results is as shown in table 1.
Table 1 the performance test results
| Performance test project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tensile strength (MPa) | 3.2 | 3.0 | 3.5 |
| Resisting etiolation | Without xanthochromia | Without xanthochromia | Without xanthochromia |
| Transmittance (%) | 94 | 94 | 96 |
| Cohesiveness (MPa) | 1.0 | 1.2 | 1.2 |
Claims (8)
1. a flexible LED lamp bar organic silicon potting adhesive, it is characterized in that this organic silicon potting adhesive is a kind of organic silicon potting adhesive of add-on type, its composition of raw materials is made up of each component of following parts by weight:
Above-mentioned base-material is made up of base-material 1 and base-material 2, and the structural formula of described base-material 1 is as shown in logical formula I:
In above-mentioned formula I, a=400 ~ 600;
The structural formula of described base-material 2 is as shown in logical formula II:
In above-mentioned formula II, b=90 ~ 110;
The weight ratio of above-mentioned base-material 1 and base-material 2 is 2:1;
The structural formula of above-mentioned linking agent is as shown in logical formula III:
In above-mentioned formula III, c=15 ~ 25, d=5 ~ 15.
2. a kind of flexible LED lamp bar organic silicon potting adhesive according to claim 1, is characterized in that in described formula I, a=500, in described formula II, and b=100, in described formula III, c=20, d=10.
3. a kind of flexible LED lamp bar organic silicon potting adhesive according to claim 1, is characterized in that described modification MQ resin is methyl vinyl MQ resin.
4. a kind of flexible LED lamp bar organic silicon potting adhesive according to claim 1, it is characterized in that described catalyzer is Karst platinum catalyst, platinum content is 3000ppm.
5. a kind of flexible LED lamp bar organic silicon potting adhesive according to claim 1, is characterized in that described inhibitor adopts ethyl acetylene-3-alcohol, 1-hexin-3-alcohol or 2-propine-1-alcohol.
6. a kind of flexible LED lamp bar organic silicon potting adhesive according to claim 1, is characterized in that described tackifier adopt silane KH560 or silane KH570.
7. a preparation method for a kind of flexible LED lamp bar organic silicon potting adhesive of any one described in claim 1-6, is characterized in that this preparation method comprises the steps:
By first to base-material, modification MQ resin, linking agent, catalyzer, inhibitor and tackifier mixing and stirring, then vacuumizing and defoaming, then after embedding, be cured process, then prepare required New LED soft lamp bar organic silicon potting adhesive; The vacuum tightness that described vacuumizing and defoaming adopts is-0.095MPa.
8. the preparation method of a kind of flexible LED lamp bar organic silicon potting adhesive according to claim 7, it is characterized in that described solidification treatment temperature used is 80 DEG C, set time is 15min.
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| CN104130741B (en) * | 2014-06-29 | 2016-03-02 | 惠州市永卓科技有限公司 | A kind of COB-LED embedding transparent organic silicon glue and preparation method thereof |
| CN104130742B (en) * | 2014-06-29 | 2016-01-20 | 惠州市永卓科技有限公司 | A kind of COB-LED organic silicon potting adhesive and preparation method thereof |
| CN104357006A (en) * | 2014-10-15 | 2015-02-18 | 安徽蓝翔电器成套设备有限公司 | Organic silicon pouring sealant as well as preparation method and application thereof |
| CN105586001A (en) * | 2014-10-21 | 2016-05-18 | 佛山市新翔星化工有限公司 | Low-viscosity high-transparency self-adhesive organic silicone pouring sealant and preparation method thereof |
| CN104403626B (en) * | 2014-11-28 | 2016-08-17 | 广州市白云化工实业有限公司 | LED drive power high anti-poisoning one-component casting glue and preparation method thereof |
| CN105255440B (en) * | 2015-11-05 | 2017-09-29 | 杭州福斯特应用材料股份有限公司 | A kind of flexible LED lamp bar organic silicon potting adhesive and preparation method thereof |
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| CN102492391A (en) * | 2011-11-28 | 2012-06-13 | 上海化工研究院 | Monocomponent addition type silicone rubber packaging glue with strong cohesiveness and preparation method thereof |
| CN102965069A (en) * | 2012-11-16 | 2013-03-13 | 烟台德邦先进硅材料有限公司 | Vulcanization-proof LED (light-emitting diode) packaging silica gel |
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