CN104910849A - High-tensile-strength polyurethane sealant and preparation method thereof - Google Patents
High-tensile-strength polyurethane sealant and preparation method thereof Download PDFInfo
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- CN104910849A CN104910849A CN201510255731.5A CN201510255731A CN104910849A CN 104910849 A CN104910849 A CN 104910849A CN 201510255731 A CN201510255731 A CN 201510255731A CN 104910849 A CN104910849 A CN 104910849A
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Abstract
The invention provides a high-tensile-strength polyurethane sealant and a preparation method thereof, and relates to the technical field of sealant. The sealant is prepared from the following raw materials by weight: 20 to 30 kg of monohydroxyl-terminated ternary polyoxypropylene ether, 5 to 7 kg of epoxy resin, 20 to 30 kg of toluene diisocyanate, 10 to 14 kg of dinonyl phthalate, 10 to 20 kg of an inorganic filler, 0.2 to 0.4 kg of triethanolamine, 0.1 to 0.3 kg of an antioxidant, 0.5 to 0.7 kg of an antiseptic and 8 to 10 kg of hydrogenated castor oil. The invention has the following beneficial effects: technical process is simple; raw material proportion is reasonable; the sealant is prepared from non-toxic harmless chemical products; the prepared sealant has good use effect and resilient property, high strength, capability of serving a double purpose, high market value and easy popularization and application.
Description
Technical field
The present invention relates to seal gum technical field, be specifically related to a kind of high degree of drawing polyurethane sealant and preparation method thereof.
Background technology
Seal gum guides to be out of shape with trim shape, not easily trickle, there is certain close-burning sealing material, be used to fill configuration gap, to play the tackiness agent of sealing function, there is anti-leak, waterproof, vibration proof and sound insulation, effect such as heat insulation grade, usually with pitch thing, natural resin or synthetic resins, the dope of the dryness such as natural rubber or synthetic rubber or non-dryness is base-material, coordinate talcum powder, carclazyte, carbon black, the inert filler such as titanium dioxide and asbestos, add softening agent again, solvent, solidifying agent, promotor etc. are made, the function of seal gum has a lot, have more the method that different functions has this different ingredients and preparation, the seal gum existed on the market at present, its quality product is also bad, poor flexibility, duration of service long afterwards simultaneously, easy distortion, and, main tensile strength is also more weak, the use of some precision optical machineries can not be met.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of formula rationally, and rebound performance is good, high degree of drawing polyurethane sealant that intensity is high and preparation method thereof.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of high degree of drawing polyurethane sealant and preparation method thereof, is characterized in that: be made up of the raw material of following component:
Terminal hydroxy group ternary polyoxytrimethylene ether 20-30kg, epoxy resin 5-7kg, tolylene diisocyanate 20-30kg, Dinonylphthalate 10-14kg, mineral filler 10-20kg, trolamine 0.2-0.4kg, oxidation inhibitor 0.1-0.3kg, sanitas 0.5-0.7kg, hydrogenated castor oil 8-10kg.
The preferred ingredient of each raw material is: terminal hydroxy group ternary polyoxytrimethylene ether 25kg, epoxy resin 6kg, tolylene diisocyanate 25kg, Dinonylphthalate 12kg, mineral filler 15kg, trolamine 0.3kg, oxidation inhibitor 0.2kg, sanitas 0.6kg, hydrogenated castor oil 9kg.
Described oxidation inhibitor is 2,6 ditertiary butyl p cresol, and described sanitas is KF88.
Another object of the present invention is to provide a kind of method preparing height degree of drawing polyurethane sealant of the present invention, it is characterized in that comprising the following steps:
A, select a stirred autoclave, the terminal hydroxy group ternary polyoxytrimethylene ether in raw material is warming up to 90-100 DEG C, after Keep agitation 2-3h, is cooled to 20-30 DEG C, stop stirring, then vacuumize;
B, the tolylene diisocyanate in raw material is added wherein, be again warming up to 80-100 DEG C, stirring reaction 1-2h, then the Dinonylphthalate in raw material is added wherein, continue to stir 1-2h;
C, until step b reaction terminate after, after the mineral filler in raw material being added, Keep agitation 3-5h, is cooled to 25-35 DEG C;
D, oxidation inhibitor, sanitas and hydrogenated castor oil by raw material add, and after continuing stirring reaction 1-2h, stop stirring, after cooling, and discharging, metering packing.
The invention has the beneficial effects as follows: present invention process flow process is succinct, reasonable raw material proportioning, the nontoxic chemical products that is of employing makes, the seal gum of preparation, result of use is good, and rebound performance is good, and intensity is high, kill two birds with one stone, marketable value is high, is convenient to promote and use.
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1
A kind of high degree of drawing polyurethane sealant and preparation method thereof, be made up of the raw material of following component:
Terminal hydroxy group ternary polyoxytrimethylene ether 20-30kg, epoxy resin 5-7kg, tolylene diisocyanate 20-30kg, Dinonylphthalate 10-14kg, mineral filler 10-20kg, trolamine 0.2-0.4kg, 2,6 ditertiary butyl p cresol 0.1-0.3kg, KF88 0.5-0.7kg, hydrogenated castor oil 8-10kg.
Preparation method is as follows:
A, select a stirred autoclave, the terminal hydroxy group ternary polyoxytrimethylene ether in raw material is warming up to 90-100 DEG C, after Keep agitation 2-3h, is cooled to 20-30 DEG C, stop stirring, then vacuumize;
B, the tolylene diisocyanate in raw material is added wherein, be again warming up to 80-100 DEG C, stirring reaction 1-2h, then the Dinonylphthalate in raw material is added wherein, continue to stir 1-2h;
C, until step b reaction terminate after, after the mineral filler in raw material being added, Keep agitation 3-5h, is cooled to 25-35 DEG C;
D, 2,6 ditertiary butyl p cresol, KF88 and hydrogenated castor oil by raw material add, and after continuing stirring reaction 1-2h, stop stirring, after cooling, and discharging, metering packing.
Embodiment 2
A kind of high degree of drawing polyurethane sealant and preparation method thereof, be made up of the raw material of following component:
Terminal hydroxy group ternary polyoxytrimethylene ether 25kg, epoxy resin 6kg, tolylene diisocyanate 25kg, Dinonylphthalate 12kg, mineral filler 15kg, trolamine 0.3kg, 2,6 ditertiary butyl p cresol 0.2kg, KF88 0.6kg, hydrogenated castor oil 9kg.
Preparation method is as follows:
A, select a stirred autoclave, the terminal hydroxy group ternary polyoxytrimethylene ether in raw material is warming up to 90-100 DEG C, after Keep agitation 2-3h, is cooled to 20-30 DEG C, stop stirring, then vacuumize;
B, the tolylene diisocyanate in raw material is added wherein, be again warming up to 80-100 DEG C, stirring reaction 1-2h, then the Dinonylphthalate in raw material is added wherein, continue to stir 1-2h;
C, until step b reaction terminate after, after the mineral filler in raw material being added, Keep agitation 3-5h, is cooled to 25-35 DEG C;
D, 2,6 ditertiary butyl p cresol, KF88 and hydrogenated castor oil by raw material add, and after continuing stirring reaction 1-2h, stop stirring, after cooling, and discharging, metering packing.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. a high degree of drawing polyurethane sealant, is characterized in that: be made up of the raw material of following component:
Terminal hydroxy group ternary polyoxytrimethylene ether 20-30kg, epoxy resin 5-7kg, tolylene diisocyanate 20-30kg, Dinonylphthalate 10-14kg, mineral filler 10-20kg, trolamine 0.2-0.4kg, oxidation inhibitor 0.1-0.3kg, sanitas 0.5-0.7kg, hydrogenated castor oil 8-10kg.
2. the high degree of drawing polyurethane sealant of one according to claim 1, is characterized in that: the preferred ingredient of each raw material is: terminal hydroxy group ternary polyoxytrimethylene ether 25kg, epoxy resin 6kg, tolylene diisocyanate 25kg, Dinonylphthalate 12kg, mineral filler 15kg, trolamine 0.3kg, oxidation inhibitor 0.2kg, sanitas 0.6kg, hydrogenated castor oil 9kg.
3. the high degree of drawing polyurethane sealant of one according to claim 1, it is characterized in that: described oxidation inhibitor is 2,6 ditertiary butyl p cresol, described sanitas is KF88.
4. prepare a method for any one high degree of drawing polyurethane sealant in claim 1 and 2, it is characterized in that, comprise the following steps:
A, select a stirred autoclave, the terminal hydroxy group ternary polyoxytrimethylene ether in raw material is warming up to 90-100 DEG C, after Keep agitation 2-3h, is cooled to 20-30 DEG C, stop stirring, then vacuumize;
B, the tolylene diisocyanate in raw material is added wherein, be again warming up to 80-100 DEG C, stirring reaction 1-2h, then the Dinonylphthalate in raw material is added wherein, continue to stir 1-2h;
C, until step b reaction terminate after, after the mineral filler in raw material being added, Keep agitation 3-5h, is cooled to 25-35 DEG C;
D, oxidation inhibitor, sanitas and hydrogenated castor oil by raw material add, and after continuing stirring reaction 1-2h, stop stirring, after cooling, and discharging, metering packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510255731.5A CN104910849A (en) | 2015-05-19 | 2015-05-19 | High-tensile-strength polyurethane sealant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510255731.5A CN104910849A (en) | 2015-05-19 | 2015-05-19 | High-tensile-strength polyurethane sealant and preparation method thereof |
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| CN104910849A true CN104910849A (en) | 2015-09-16 |
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| CN201510255731.5A Pending CN104910849A (en) | 2015-05-19 | 2015-05-19 | High-tensile-strength polyurethane sealant and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106047281A (en) * | 2016-05-27 | 2016-10-26 | 李红玉 | Sealant for power electronic devices |
| CN109401699A (en) * | 2018-08-30 | 2019-03-01 | 重庆交通大学 | Constructing tunnel pipe thread seal glue |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594481A (en) * | 2004-06-24 | 2005-03-16 | 淄博海特曼化工有限公司 | Solvent-free high-strength polyurethane cementing sealing glue and method for making same |
| CN103509514A (en) * | 2013-09-06 | 2014-01-15 | 芜湖市正通电气设备有限公司 | A fast-curing reactive hot-melt adhesive |
-
2015
- 2015-05-19 CN CN201510255731.5A patent/CN104910849A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594481A (en) * | 2004-06-24 | 2005-03-16 | 淄博海特曼化工有限公司 | Solvent-free high-strength polyurethane cementing sealing glue and method for making same |
| CN103509514A (en) * | 2013-09-06 | 2014-01-15 | 芜湖市正通电气设备有限公司 | A fast-curing reactive hot-melt adhesive |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106047281A (en) * | 2016-05-27 | 2016-10-26 | 李红玉 | Sealant for power electronic devices |
| CN109401699A (en) * | 2018-08-30 | 2019-03-01 | 重庆交通大学 | Constructing tunnel pipe thread seal glue |
| CN109401699B (en) * | 2018-08-30 | 2021-09-21 | 重庆交通大学 | Pipe thread sealant for tunnel construction |
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Application publication date: 20150916 |
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