CN104830048A - Novel polyurethane material for packaging adhesive and preparation method of novel polyurethane material - Google Patents
Novel polyurethane material for packaging adhesive and preparation method of novel polyurethane material Download PDFInfo
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- CN104830048A CN104830048A CN201510260303.1A CN201510260303A CN104830048A CN 104830048 A CN104830048 A CN 104830048A CN 201510260303 A CN201510260303 A CN 201510260303A CN 104830048 A CN104830048 A CN 104830048A
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- polyurethane material
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Abstract
The invention provides a novel polyurethane material for a packaging adhesive. The novel polyurethane material comprises the following components in parts by weight: 25-35 parts of polyaryl polymethylene isocyanate, 1-5 parts of a chain extender, 35-45 parts of castor oil, 5-10 parts of a fire retardant, 10-20 parts of light calcium carbonate, 0.1-0.5 part of a defoamer, 0.1-0.3 part of an antioxidant and 0.1-0.3 part of an ultraviolet light absorber. The invention further discloses a preparation method of the novel polyurethane material for the packaging adhesive. The novel polyurethane material for the packaging adhesive, provided by the invention, is relatively good in water resistance and relatively high in curing speed.
Description
Technical field:
The present invention relates to a kind of polyurethane material, particularly relate to a kind of novel encapsulated glue polyurethane material and preparation method thereof.
Background technology:
Along with the development of electronic industry, microelectronics application is increasingly extensive, and simultaneously the safety of electronic product performance and stable problem highlight day by day.In order to ensure the normal use of components and parts, a lot of electronic unit needs to be encapsulated with packaging plastic, to ensure it not by the impact of outside atmosphere.At present, packaging plastic comprises epoxy resin, silicone resin class, polyurethanes etc., wherein, the defect that epoxy resin packaging plastic has quality more crisp, the defect of silicone resin class wrapper glue is then that intensity is lower, binding property is poor, and the defect of polyurethanes packaging plastic to be water tolerance not good, curing speed is slower.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of novel encapsulated glue polyurethane material, and water tolerance is better, and curing speed is very fast.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of novel encapsulated glue polyurethane material, its weight part consists of:
Preferably, the massfraction of the NCO of polyphenyl polymethylene polyisocyanates of the present invention is 28 ~ 30%.
Preferably, chainextender of the present invention is one or more the mixture in glycol ether, triglycol, BDO, trihydroxy methyl propane.
Preferably, the weight fraction of the hydroxyl of Viscotrol C of the present invention is 4 ~ 5%.
Preferably, fire retardant of the present invention is one or more mixture of cumyl triphenylphosphate, dimethyl methyl phosphonate, Tritolyl Phosphate.
Preferably, defoamer of the present invention is methyl-silicone oil or acrylate copolymer.
Preferably, oxidation inhibitor of the present invention is antioxidant 1010.
Preferably, UV light absorber of the present invention is UV-327.
Another technical problem that the present invention will solve is to provide the preparation method of above-mentioned packaging plastic polyurethane material.
For solving the problems of the technologies described above, technical scheme is:
A preparation method for novel encapsulated glue polyurethane material, comprises the following steps:
(1) take Viscotrol C, light calcium carbonate add reactor, be heated to 110 DEG C of final vacuums while stirring and dewater 3 hours, be cooled to 60 DEG C, then add defoamer and stir, cool after the massfraction of water is less than 0.1%, blowing, obtain component A;
(2) take polyphenyl polymethylene polyisocyanates and add reactor, add fire retardant, chainextender, oxidation inhibitor, UV light absorber, stir, be blowing after 15% until NCO massfraction, obtain B component;
(3) component A, B component are mixed in proportion casting, obtain packaging plastic polyurethane material.
Therefore compared with prior art, the present invention has following beneficial effect:
Viscotrol C is a kind of polyol, have long-chain fat base, and functionality is greater than 2, is easily cross-linked into reticulated structure, makes polyurethane material have good water tolerance; The hydroxyl of Viscotrol C is secondary hydroxyl, and functionality is higher, easily forms tridimensional network, in addition, the functional group number of polyphenyl polymethylene polyisocyanates is 2.7 ~ 2.8, has higher reactive behavior, very fast with the speed of response of components, therefore curing speed of the present invention is very fast; Viscotrol C is a kind of crude vegetal, and cost is lower, effectively can reduce production cost.
Embodiment:
Describe the present invention in detail below in conjunction with specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1
A kind of novel encapsulated glue polyurethane material, its weight part consists of:
Its preparation method comprises the following steps:
(1) take Viscotrol C, light calcium carbonate add reactor, be heated to 110 DEG C of final vacuums while stirring and dewater 3 hours, be cooled to 60 DEG C, then add defoamer and stir, cool after the massfraction of water is less than 0.1%, blowing, obtain component A;
(2) take polyphenyl polymethylene polyisocyanates and add reactor, add fire retardant, chainextender, oxidation inhibitor, UV light absorber, stir, be blowing after 15% until NCO massfraction, obtain B component;
(3) component A, B component are mixed in proportion casting, obtain packaging plastic polyurethane material.
Embodiment 2
A kind of novel encapsulated glue polyurethane material, its weight part consists of:
Its preparation method comprises the following steps:
(1) take Viscotrol C, light calcium carbonate add reactor, be heated to 110 DEG C of final vacuums while stirring and dewater 3 hours, be cooled to 60 DEG C, then add defoamer and stir, cool after the massfraction of water is less than 0.1%, blowing, obtain component A;
(2) take polyphenyl polymethylene polyisocyanates and add reactor, add fire retardant, chainextender, oxidation inhibitor, UV light absorber, stir, be blowing after 15% until NCO massfraction, obtain B component;
(3) component A, B component are mixed in proportion casting, obtain packaging plastic polyurethane material.
Embodiment 3
A kind of novel encapsulated glue polyurethane material, its weight part consists of:
Its preparation method comprises the following steps:
(1) take Viscotrol C, light calcium carbonate add reactor, be heated to 110 DEG C of final vacuums while stirring and dewater 3 hours, be cooled to 60 DEG C, then add defoamer and stir, cool after the massfraction of water is less than 0.1%, blowing, obtain component A;
(2) take polyphenyl polymethylene polyisocyanates and add reactor, add fire retardant, chainextender, oxidation inhibitor, UV light absorber, stir, be blowing after 15% until NCO massfraction, obtain B component;
(3) component A, B component are mixed in proportion casting, obtain packaging plastic polyurethane material.
Embodiment 4
A kind of novel encapsulated glue polyurethane material, its weight part consists of:
Its preparation method comprises the following steps:
(1) take Viscotrol C, light calcium carbonate add reactor, be heated to 110 DEG C of final vacuums while stirring and dewater 3 hours, be cooled to 60 DEG C, then add defoamer and stir, cool after the massfraction of water is less than 0.1%, blowing, obtain component A;
(2) take polyphenyl polymethylene polyisocyanates and add reactor, add fire retardant, chainextender, oxidation inhibitor, UV light absorber, stir, be blowing after 15% until NCO massfraction, obtain B component;
(3) component A, B component are mixed in proportion casting, obtain packaging plastic polyurethane material.
Embodiment 5
A kind of novel encapsulated glue polyurethane material, its weight part consists of:
Its preparation method comprises the following steps:
(1) take Viscotrol C, light calcium carbonate add reactor, be heated to 110 DEG C of final vacuums while stirring and dewater 3 hours, be cooled to 60 DEG C, then add defoamer and stir, cool after the massfraction of water is less than 0.1%, blowing, obtain component A;
(2) take polyphenyl polymethylene polyisocyanates and add reactor, add fire retardant, chainextender, oxidation inhibitor, UV light absorber, stir, be blowing after 15% until NCO massfraction, obtain B component;
(3) component A, B component are mixed in proportion casting, obtain packaging plastic polyurethane material.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (9)
1. a novel encapsulated glue polyurethane material, is characterized in that: its weight part composition comprises:
2. a kind of novel encapsulated glue polyurethane material according to claim 1, is characterized in that: the massfraction of the NCO of described polyphenyl polymethylene polyisocyanates is 28 ~ 30%.
3. a kind of novel encapsulated glue polyurethane material according to claim 1, is characterized in that: described chainextender is one or more the mixture in glycol ether, triglycol, BDO, trihydroxy methyl propane.
4. a kind of novel encapsulated glue polyurethane material according to claim 1, is characterized in that: the weight fraction of the hydroxyl of described Viscotrol C is 4 ~ 5%.
5. a kind of novel encapsulated glue polyurethane material according to claim 1, is characterized in that: described fire retardant is one or more mixture of cumyl triphenylphosphate, dimethyl methyl phosphonate, Tritolyl Phosphate.
6. a kind of novel encapsulated glue polyurethane material according to claim 1, is characterized in that: described defoamer is methyl-silicone oil or acrylate copolymer.
7. a kind of novel encapsulated glue polyurethane material according to claim 1, is characterized in that: described oxidation inhibitor is antioxidant 1010.
8. a kind of novel encapsulated glue polyurethane material according to claim 1, is characterized in that: described UV light absorber is UV-327.
9. the preparation method of a kind of novel encapsulated glue polyurethane material according to claim 1 ~ 8 any one, is characterized in that: comprise the following steps:
(1) take Viscotrol C, light calcium carbonate add reactor, be heated to 110 DEG C of final vacuums while stirring and dewater 3 hours, be cooled to 60 DEG C, then add defoamer and stir, cool after the massfraction of water is less than 0.1%, blowing, obtain component A;
(2) take polyphenyl polymethylene polyisocyanates and add reactor, add fire retardant, chainextender, oxidation inhibitor, UV light absorber, stir, be blowing after 15% until NCO massfraction, obtain B component;
(3) component A, B component are mixed in proportion casting, obtain packaging plastic polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510260303.1A CN104830048A (en) | 2015-05-20 | 2015-05-20 | Novel polyurethane material for packaging adhesive and preparation method of novel polyurethane material |
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| CN201510260303.1A CN104830048A (en) | 2015-05-20 | 2015-05-20 | Novel polyurethane material for packaging adhesive and preparation method of novel polyurethane material |
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| CN104830048A true CN104830048A (en) | 2015-08-12 |
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| CN201510260303.1A Pending CN104830048A (en) | 2015-05-20 | 2015-05-20 | Novel polyurethane material for packaging adhesive and preparation method of novel polyurethane material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105111714A (en) * | 2015-08-20 | 2015-12-02 | 巢湖子阳电器有限公司 | Modified polyurethane used for packaging water level sensor coil of full-automatic washing machine |
| CN109082103A (en) * | 2018-07-26 | 2018-12-25 | 安徽同佳电子科技有限公司 | A kind of preparation method of fire-retardant electromagnetic coil encapsulating material |
| CN109504070A (en) * | 2018-12-12 | 2019-03-22 | 特变电工昭和（山东）电缆附件有限公司 | A kind of high-voltage cable joint fire-resistant waterproof mixture and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139512A (en) * | 2007-10-24 | 2008-03-12 | 济南大学 | Monocomponent polyurethane adhesive and preparation method and use thereof |
| CN102102006A (en) * | 2010-12-20 | 2011-06-22 | 东莞市宏达聚氨酯有限公司 | Method for preparing bi-component polyurethane pouring sealant and product thereof |
| CN102942894A (en) * | 2012-11-29 | 2013-02-27 | 宜兴市江南药用化工厂 | Double-component low-hardness flame-retardant polyurethane potting adhesive and preparation method thereof |
-
2015
- 2015-05-20 CN CN201510260303.1A patent/CN104830048A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139512A (en) * | 2007-10-24 | 2008-03-12 | 济南大学 | Monocomponent polyurethane adhesive and preparation method and use thereof |
| CN102102006A (en) * | 2010-12-20 | 2011-06-22 | 东莞市宏达聚氨酯有限公司 | Method for preparing bi-component polyurethane pouring sealant and product thereof |
| CN102942894A (en) * | 2012-11-29 | 2013-02-27 | 宜兴市江南药用化工厂 | Double-component low-hardness flame-retardant polyurethane potting adhesive and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105111714A (en) * | 2015-08-20 | 2015-12-02 | 巢湖子阳电器有限公司 | Modified polyurethane used for packaging water level sensor coil of full-automatic washing machine |
| CN105111714B (en) * | 2015-08-20 | 2017-12-15 | 巢湖子阳电器有限公司 | Water-level sensor for full-automatic washing machine coil encapsulation modified polyurethane |
| CN109082103A (en) * | 2018-07-26 | 2018-12-25 | 安徽同佳电子科技有限公司 | A kind of preparation method of fire-retardant electromagnetic coil encapsulating material |
| CN109504070A (en) * | 2018-12-12 | 2019-03-22 | 特变电工昭和（山东）电缆附件有限公司 | A kind of high-voltage cable joint fire-resistant waterproof mixture and preparation method thereof |
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Application publication date: 20150812 |