CN101591504B - Single-component organic silicon flame-retardant coating type paint - Google Patents
Single-component organic silicon flame-retardant coating type paint Download PDFInfo
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- CN101591504B CN101591504B CN2008100444952A CN200810044495A CN101591504B CN 101591504 B CN101591504 B CN 101591504B CN 2008100444952 A CN2008100444952 A CN 2008100444952A CN 200810044495 A CN200810044495 A CN 200810044495A CN 101591504 B CN101591504 B CN 101591504B
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Abstract
The invention provides single-component organic silicon flame-retardant coating type paint belonging to the technical field of the manufacture of paint. The single-component organic silicon flame-retardant coating type paint comprises the following main components according to parts by weight: 100 parts of block polymer of phenyl silicone resin and linear polysiloxane, 5-15 parts of cross linker, 0.5-2 parts of catalyst, 0.01-0.05 part of flame retardant and 20-100 parts of solvent. The coating type paint has excellent high-frequency dielectric properties, and the coating type paint with different hardness, elasticity and thermoplasticity can be manufactured according to different technology requirements. The storage period of the paint in a closed environment is more than one year.
Description
Technical field
The present invention relates to a kind ofly be coated on the printed wiring or the flame-proof organosilicon coating type paint of other electronic substrate.Belong to coating manufacturing technology field.
Background technology
Coating type paint is the thin layer protecting materials that is applied to printed wiring or other electronic substrate.Be applied to high-frequency unit coating partly and claim high frequency three anti-(protection against the tide, mildew-resistant, anti-salt fog) coating again.It also requires excellent high-frequency dielectric performance except the performance that must have general three-resistance coating.Organosilicon material is a kind of very good " three is anti-" material, but the over-all properties of general organosilicon material can not satisfy the requirement of coating high-frequency unit part.For example, room temperature vulcanized silicone rubber, silicon gel can solidify in room temperature or low temperature (below 75 ℃), dielectric properties are fine, but coating is rubber-like, and surface hardness is low, easily dust suction, strength of coating is not good enough, and and for example silicone glass resin also can self-vulcanizing, but cured coating is too crisp, poor toughness easily chaps when being subjected to temperature shock; ((about 200 ℃) could solidify, and substantially exceed the stoving temperature that the printed circuit board assembly allows and have the temperature that necessarily flexible silicone resin commonly used all need be higher.The synthesis material of general silicone resin is a halosilanes, and this synthesis technique complexity is polluted big.In addition, " New Chemical Materials " that China Chemical Information Center publishes, disclosed a kind of " GT-912 organosilicon coating type paint " in " elastoplasticity organosilicon ' three anti-' coating " literary composition that 2004 the 2nd phases delivered by the Zhong Hao Chenguang Research Institute of Chemical Industry development, its over-all properties is better, but this organosilicon coating type paint is a dual-component coating, apply also corresponding shortening of operating time, inconvenience construction after two components will being mixed by a certain percentage during use.Existing market use single-component organic silicon coating type paint more widely is the DC1-2577 organosilicon coating type paint of Dow corning company exploitation, and referring to its product description, its over-all properties is better, but it costs an arm and a leg.
Summary of the invention
In view of the above problems, the object of the present invention is to provide the single-component organic silicon flame-retardant coating type paint that a kind of price is low, dielectric properties are good.
Single-component flame-proof organosilicon coating type paint of the present invention, its main composition comprises following component, is expressed as with parts by weight:
Phenyl polysiloxane block polymer 100
Linking agent 5～15
Catalyzer 0.5～2
Fire retardant 0.1～0.5
Solvent 20～100
It is characterized in that described phenyl polysiloxane block polymer is the block polymer of phenyl polysiloxane and linear polysiloxane.
The present invention selects for use the phenyl polysiloxane of electrical property excellence and linear polysiloxane as base material, and the block polymer of getting them is served as the film forming matter of this coating type paint, thereby has guaranteed that this coating type paint possesses excellent high-frequency dielectric performance.In addition, phenyl polysiloxane hardness height, thermoplasticity is good, the structure by regulating phenyl polysiloxane and can obtain different hardness, elasticity and thermoplastic coating type paint with the polymerization ratio of linear polyoxy alkane.Synthesis of phenyl raw material that silicone resin adopts is a siloxanyl monomers, has simplified technology and has reduced pollution.
This coating type paint can also add UV-light indicator and toning agent etc. according to requirement of client, and coating is mixed with different colours.
Compared with the aforementioned existing similar products, coating of the present invention has the following advantages:
1, widely applicable---can be prepared into different hardness, elasticity and thermoplastic coating type paint according to the different process customer requirements.Can satisfy the requirement of different use objects.
2, coating of the present invention is single-component coating, uses easier; And storage period is long, can reach more than 1 year in closed environment.
3, price is low---and coating of the present invention is compared price with the DC1-2577 of the U.S. and has been reduced by 30%.
Content of the present invention further illustrates with the following Examples, but content of the present invention is not limited only to content related among the embodiment.
Embodiment
Embodiment 1:
Material proportion: 100 parts of the block polymers of phenyl polysiloxane and linear polysiloxane; Linking agent is 5 parts of Si (OCH
3)
4Catalyzer is 0.5 part of dibutyl tin laurate; Fire retardant is 0.1 part of cumyl phenyl phosphate ester; Solvent is 20 parts of toluene.Its performance index see Table 1.
Embodiment 2:
Material proportion: 100 parts of the block polymers of phenyl polysiloxane and linear polysiloxane; Linking agent is 5 parts of MeSi (OCH
3)
3With 2 parts of Si (OC
2H
5)
4Catalyzer is 1 part of dibutyl tin laurate; Fire retardant is 0.3 part of cumyl phenyl phosphate ester; Solvent is 50 parts of toluene.Its performance index see Table 1.
Embodiment 3:
Material proportion: 100 parts of the block polymers of phenyl polysiloxane and linear polysiloxane; Linking agent is 5 parts of MeSi (OCH
3)
3With 10 parts of Si (OC
2H
5)
4Catalyzer is 2 parts of dibutyl tin laurates; Fire retardant is 0.5 part of cumyl phenyl phosphate ester; Solvent is 100 parts of toluene.Its performance index see Table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | DC1-2577 | |
| Outward appearance | Transparent liquid | Transparent liquid | Transparent liquid | Transparent liquid |
| Solid content % | 81 | 62 | 52 | 70 |
| Relative density | 1.08 | 1.04 | 1.02 | 1.11 |
| Viscosity mPas | 1200 | 450 | 200 | 760 |
| Surface drying time min-50% relative humidity | 10min | 15min | 15min | 7min |
| Hardness Shao Shi D | 31 | 32 | 34 | 24 |
| Tensile strength at yield Mpa | 2.8 | 2.6 | 3.0 | 3.0 |
| Pull apart height rate % | 40 | 38 | 30 | 30 |
| Disruptive strength KV/mm | 18 | 18 | 18 | 18 |
| Specific inductivity (100Hz) | 2.70 | 2.68 | 2.72 | 2.76 |
| Tangent of the dielectric loss angle (100Hz) | 0.004 | 0.004 | 0.004 | 0.004 |
| Volume specific resistance Ω .m | 0.6×10 14 | 0.6×10 14 | 0.6×10 14 | 0.5×10 14 |
| Flame retardant resistance | FV-0 | FV-0 | FV-0 | / |
As can be known, the specific inductivity of this coating is lower than DOW CORNING DC1-2577 from above-mentioned data, and volume specific resistance is higher than DOW CORNING DC1-2577, and its dielectric properties are better than DOW CORNING DC1-2577.
Claims (1)
1. single-component organic silicon flame-retardant coating type paint is characterized in that: composed of the following components, be expressed as with parts by weight:
Described phenyl polysiloxane block polymer is the block polymer of phenyl polysiloxane and linear polysiloxane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100444952A CN101591504B (en) | 2008-05-30 | 2008-05-30 | Single-component organic silicon flame-retardant coating type paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100444952A CN101591504B (en) | 2008-05-30 | 2008-05-30 | Single-component organic silicon flame-retardant coating type paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101591504A CN101591504A (en) | 2009-12-02 |
| CN101591504B true CN101591504B (en) | 2011-12-28 |
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|---|---|---|---|
| CN2008100444952A Active CN101591504B (en) | 2008-05-30 | 2008-05-30 | Single-component organic silicon flame-retardant coating type paint |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304323B (en) * | 2011-07-22 | 2013-05-22 | 绵阳惠利电子材料有限公司 | Room-temperature cured phenyl silicon resin conformal coating |
| CN111454662B (en) * | 2020-04-15 | 2021-11-16 | 重庆中弗聚新材料科技有限公司 | Room-temperature-curable organic silicon resin conformal coating and preparation method thereof |
| CN112480816B (en) * | 2020-11-30 | 2022-05-06 | 山东东岳有机硅材料股份有限公司 | Room-temperature-curing solvent-free conformal coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297232A (en) * | 2000-12-20 | 2001-05-30 | 广州市天赐有机硅制品有限公司 | Insulative organosilicon material for high-voltage electric appliance |
| CN1407041A (en) * | 2001-08-23 | 2003-04-02 | 聚新科技股份有限公司 | High voltage insulator coating composition and preparation and application thereof |
-
2008
- 2008-05-30 CN CN2008100444952A patent/CN101591504B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297232A (en) * | 2000-12-20 | 2001-05-30 | 广州市天赐有机硅制品有限公司 | Insulative organosilicon material for high-voltage electric appliance |
| CN1407041A (en) * | 2001-08-23 | 2003-04-02 | 聚新科技股份有限公司 | High voltage insulator coating composition and preparation and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张在利等.弹塑性有机硅"三防"涂料.《化工新型材料》.2004,第32卷(第2期),39-41. |
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Address after: 610100, No. 578, south two road, Chengdu economic and Technological Development Zone (Longquanyi District, Sichuan) Patentee after: Tuoli Chemical Industry Co., Ltd., Chengdu Address before: 610100 No. 578, south two road, Chengdu economic and Technological Development Zone, Sichuan, China Patentee before: Tuoli Chemical Industry Co., Ltd., Chengdu |
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Address after: 610100, No. 578, south two road, Chengdu economic and Technological Development Zone (Longquanyi District, Sichuan) Patentee after: CHENGDU TALY TECHNOLOGY CO., LTD. Address before: 610100, No. 578, south two road, Chengdu economic and Technological Development Zone (Longquanyi District, Sichuan) Patentee before: Tuoli Chemical Industry Co., Ltd., Chengdu |