CN115960543A - Processing technology of ultraviolet-proof polyurethane film for laminated glass - Google Patents
Processing technology of ultraviolet-proof polyurethane film for laminated glass Download PDFInfo
- Publication number
- CN115960543A CN115960543A CN202211483586.2A CN202211483586A CN115960543A CN 115960543 A CN115960543 A CN 115960543A CN 202211483586 A CN202211483586 A CN 202211483586A CN 115960543 A CN115960543 A CN 115960543A
- Authority
- CN
- China
- Prior art keywords
- parts
- polyurethane film
- ultraviolet
- graphene oxide
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/22—Glazing, e.g. vaccum glazing
Abstract
The invention relates to the field of polyurethane materials, in particular to a processing technology of an ultraviolet-proof polyurethane film for laminated glass. According to the invention, the nano silicon dioxide and graphene oxide are grafted by the toluene-2, 4-diisocyanate, and the composite material is prepared for the modified polyurethane film, so that a product with good ultraviolet resistance is obtained. Although the nano-silica has a good ultraviolet absorption effect and can shield ultraviolet light, the nano-silica is easy to generate a secondary agglomeration phenomenon, and the performance of a product is influenced. Thus toluene-2, 4 diisocyanate modification similar to the polyurethane component was used to ameliorate this phenomenon. In order to further improve the mechanical property of the polyurethane film, the surface of the graphene oxide is modified by using ethylenediamine, so that the surface of the graphene oxide is rich in amino groups, and the graphene oxide can be well blended with polyurethane after reacting with isocyanate groups, thereby preparing the polyurethane film with excellent performance.
Description
Technical Field
The invention relates to the field of polyurethane materials, in particular to a processing technology of an ultraviolet-proof polyurethane film for laminated glass.
Background
The laminated glass is invented in the early period of the last century, and after development of more than one hundred years, the laminated glass is widely applied to various fields, wherein common windshield glass comprises military transparent armored vehicles, bulletproof materials or civil vehicles such as airplanes, automobiles, high-speed rails and the like, and can effectively avoid great loss of impact accidents to personnel and structures. With the progress of science and technology, the social rhythm is faster and faster, the speeds of transportation means such as airplanes, trains, coaches and the like are continuously improved, people go out more and more frequently, and the traffic safety gradually becomes one of the most concerned topics in the whole society, so that the function of the laminated glass is very important, and the research on the laminated glass is very significant.
The sandwich glass has a structure that one or more layers of organic polymer intermediate films are mixed in two or more layers of glass sheets, and the glass sheets and the organic polymer intermediate films are permanently bonded together through special process treatment such as vacuumizing, high temperature and high pressure and the like to obtain the composite material. At present, laminated glass applied to transportation vehicles such as airplanes and trains as windshield glass is generally made by bonding polyvinyl butyral (PVB) and organic glass, has good light transmission performance and impact resistance, and is different from common glass, and the splash of glass fragments in impact accidents is effectively reduced by the polyvinyl butyral. However, since the adhesion effect of PVB to organic glass is poor, and the surface of the PVB film becomes brittle in a low-temperature environment, the adhesion strength with the glass material is further weakened. The thermoplastic polyurethane has better bonding strength, higher transparency and stronger impact deformation resistance, has good adaptability to temperature change, is considered as a material capable of replacing polyvinyl butyral, and can be used as an interlayer material for laminated glass. Because the absorption wavelength of the polyurethane is between 209 and 400nm, the polyurethane has the problems of molecular bond breakage or bond crosslinking and the like after being exposed to natural light and ultraviolet light irradiation for a long time, so that the material is aged and damaged, and the original physical and chemical properties are lost. Therefore, it is necessary to develop a uv-blocking polyurethane film for laminated glass.
Disclosure of Invention
The invention aims to provide a processing technology of an ultraviolet-proof polyurethane film for laminated glass, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a processing technology of an ultraviolet-proof polyurethane film for laminated glass comprises the following steps:
step 1: preparing nano silicon dioxide powder:
s1: weighing a cationic surfactant as a template agent, adding urea and deionized water, stirring and dissolving to obtain a solution A; uniformly mixing cyclohexane, ethanol and silicate ester compound to obtain a solution B;
s2: mixing the solution A and the solution B prepared in the step S1, and stirring and reacting at room temperature for 30 to 60min at the rotation speed of 1200 to 2000rpm; then heating to 120 to 140 ℃, and continuously stirring for reaction for 6 to 8 hours to obtain emulsion; centrifuging, taking out supernatant, washing, drying, and sintering at the high temperature of 500-600 ℃ for 4-6 h to obtain nano silicon dioxide powder;
step 2: modifying the surface of graphene oxide:
mixing graphene oxide with deionized water, performing ultrasonic treatment to obtain a uniformly dispersed graphene oxide suspension, then adding a diamine monomer, continuously stirring the mixed solution at 60 to 75 ℃ for 2 to 3 hours, centrifuging to remove a supernatant, and performing freeze drying for 60 to 72hours to obtain amino functionalized graphene oxide;
and step 3: preparing a composite material:
dispersing nano silicon dioxide powder in N, N-dimethylformamide, carrying out ultrasonic treatment for 15min, adding toluene-2, 4-diisocyanate, heating in a water bath to 80 ℃, and reacting for 8 to 10h; then, adding amino functionalized graphene oxide, continuously reacting for 2 to 3h, filtering, washing, and freeze-drying to obtain a composite material;
and 4, step 4:
adding polyol and diisocyanate into a reaction kettle, introducing nitrogen for protection, heating to 80-90 ℃, reacting for 2 hours, and then cooling to room temperature; adding micromolecular alcohol, a chain extender, a composite material and an antioxidant, stirring uniformly at 70-80 ℃, then sealing and mixing for 3-5h, and cooling with cold water to obtain the polyurethane rubber sheet material.
Further, in S1, the contents of the components of the solution A are, by weight, 2.4 to 3 parts of cationic surfactant, 1.6 to 2.2 parts of urea and 8 to 9 parts of deionized water; the contents of the components in the solution B are 6.4 to 7.5 parts of cyclohexane, 3.2 to 4 parts of ethanol and 6.4 to 7.8 parts of silicate ester compound by weight.
Further, in S1, the cationic surfactant is any one of cetyltrimethylammonium bromide, cetyltriethylammonium bromide, cetylpyridinium bromide, octadecyltrimethylammonium bromide, and cetylpyridinium bromide; the silicate ester compound is any one of methyl orthosilicate, ethyl orthosilicate, propyl orthosilicate, isopropyl silicate and butyl orthosilicate, and ethyl orthosilicate is preferred.
Further, in the step 2, the used amount of each substance is 2 to 3 parts by weight of graphene oxide, 9 to 9.5 parts by weight of deionized water and 0.3 to 1 part by weight of diamine monomer.
Further, in step 2, the diamine monomer is any one of ethylenediamine, butanediamine and hexanediamine.
Further, in the step 3, the usage amount of each component is 2 to 2.8 parts by weight of nano silicon dioxide powder, 2.8 to 3.3 parts by weight of toluene-2, 4-diisocyanate and 1 to 2 parts by weight of amino functionalized graphene oxide.
Further, in the step 4, 100 to 110 parts of polyol, 10 to 20 parts of small molecular weight alcohol, 60 to 90 parts of isocyanate, 30 to 35 parts of chain extender, 2 to 3 parts of composite material and 2 to 3 parts of antioxidant.
Further, in step 4, the polyol is any one of polycarbonate diol, polyhexamethylene lactone polyol, polytetrahydrofuran polyol and polypropylene oxide polyol, and has an average molecular weight of 1000-3000; the small molecular alcohol is any one of 1, 4-butanediol, 1, 4-cyclohexanedimethanol, diethylene glycol and 1, 2-propylene glycol; the diisocyanate is any one of p-phenylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, lysine diisocyanate and trimethylsilyl isocyanate; the chain extender is any one of dimethylolpropionic acid, di-o-chloroaniline methane, methyl propylene glycol, ethylenediamine and 2, 4-diamino-3-methylthio-5-propyl chlorobenzene; the antioxidant is any one of antioxidant 1010, antioxidant 1035 and antioxidant 168.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the toluene-2, 4-diisocyanate grafted nano silicon dioxide and graphene oxide are used for preparing the composite material for the modified polyurethane film, so that the modified polyurethane film has good ultraviolet resistance. The nano silicon dioxide has good ultraviolet absorption effect and can shield ultraviolet light. In order to avoid the phenomenon that the secondary agglomeration of the nano-silica affects the performance of the product, the nano-silica is modified by toluene-2, 4 diisocyanate. In order to further improve the mechanical property of the polyurethane film, the surface of the graphene oxide is rich in amino groups by surface modification of the graphene oxide, and the amino groups can react with isocyanate groups, so that the graphene oxide is grafted onto toluene-2, 4 diisocyanate, and the graphene oxide and polyurethane are well blended, thereby obtaining the polyurethane film with excellent performance.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following examples, the main material sources are as follows:
| substance(s) | CAS number | Source |
| Cetyl trimethyl ammonium Bromide | 57-09-0 | Chinese medicine |
| Urea | 57-13-6 | Chenxiang chemical industry |
| Cyclohexane | 110-82-7 | Luxisi chemical industry |
| Ethanol | 64-17-5 | Aladdin |
| 1, 4-butanediol | 110-63-4 | Aladdin |
| Tetraethoxysilane | 78-10-4 | Microphone forest |
| Graphene oxide | — | Carbon material for high carbon |
| Ethylene diamine | 107-15-3 | NanjingHua Xi |
| Toluene-2, 4-diisocyanate | 584-84-9 | Microphone forest |
| Isofluorone diisocyanates | 4098-71-9 | Nanjing national morning |
| Antioxidant 1010 | 6683-19-8 | Can be used for light coupling |
| Polycarbonate diol | 32472-85-8 | Yutian group |
Wherein the product number of the graphene oxide is NGO-1512, and the diameter of a single-layer sheet is 50 to 500nm; the polycarbonate diol has a commercial number of CD-2000LL and an average molecular weight of 2000.
Example 1:
step 1: preparing nano silicon dioxide powder:
s1: weighing 2.4kg of hexadecyl trimethyl ammonium bromide as a template agent, adding 1.8kg of urea and 8kg of deionized water, stirring and dissolving to obtain a solution A; uniformly mixing 6.4kg of cyclohexane, 3kg of ethanol and 6.5kg of ethyl orthosilicate to obtain a solution B;
s2: mixing the solution A and the solution B prepared in the step S1, and stirring and reacting for 30min at room temperature, wherein the rotating speed is 1200rpm; then heating to 120 ℃, and continuously stirring for reaction for 6 hours to obtain emulsion; centrifuging, taking out supernatant, washing, drying, and sintering at 500 deg.C for 4h to obtain nanometer silicon dioxide powder;
step 2: modifying the surface of graphene oxide:
mixing 2kg of graphene oxide with 9kg of deionized water, performing ultrasonic treatment to obtain a uniformly dispersed graphene oxide suspension, then adding 0.3kg of ethylenediamine, continuously stirring the mixed solution at 60 ℃ for 2h, centrifuging to remove supernatant, and performing freeze drying for 60h to obtain the amino functionalized graphene oxide.
And step 3: preparing a composite material:
dispersing 2kg of nano silicon dioxide powder in N, N-dimethylformamide, carrying out ultrasonic treatment for 15min, adding 2.8kg of toluene-2, 4-diisocyanate, heating in a water bath to 80 ℃, and reacting for 8h; then adding 1kg of amino functionalized graphene oxide, continuing to react for 2 hours, filtering, washing, and freeze-drying to obtain a composite material;
and 4, step 4:
adding 100kg of polycarbonate diol and 60kg of isophorone diisocyanate into a reaction kettle, introducing nitrogen for protection, heating to 80 ℃, reacting for 2 hours, and then cooling to room temperature; adding 10kg of 1, 4-butanediol, 30kg of ethylenediamine, 2kg of composite material and 2kg of antioxidant 1010, stirring uniformly at 70 ℃, then sealing and mixing for 3 hours, and cooling in cold water to obtain the polyurethane sheet material.
Example 2:
step 1: preparing nano silicon dioxide powder:
s1: weighing 2.4kg of hexadecyl trimethyl ammonium bromide as a template agent, adding 1.9kg of urea and 8.1kg of deionized water, stirring and dissolving to obtain a solution A; uniformly mixing 6.8kg of cyclohexane, 3.6kg of ethanol and 6.9kg of ethyl orthosilicate to obtain a solution B;
s2: mixing the solution A and the solution B prepared in the step S1, and stirring and reacting for 40min at room temperature at the rotating speed of 1800rpm; then heating to 125 ℃, and continuously stirring for reaction for 7 hours to obtain emulsion; centrifuging, taking out supernatant, washing, drying, and sintering at 550 ℃ for 5h to obtain nano silicon dioxide powder;
step 2: modifying the surface of graphene oxide:
mixing 2.7kg of graphene oxide with 9.3kg of deionized water, performing ultrasonic treatment to obtain a uniformly dispersed graphene oxide suspension, then adding 0.5kg of ethylenediamine, continuously stirring the mixed solution at 70 ℃ for 2.5h, centrifuging to remove supernatant, and performing freeze drying for 65h to obtain the amino functionalized graphene oxide.
And 3, step 3: preparing a composite material:
dispersing 2.4kg of nano silicon dioxide powder in N, N-dimethylformamide, carrying out ultrasonic treatment for 15min, adding 3kg of toluene-2, 4-diisocyanate, heating in a water bath to 80 ℃, and reacting for 9h; then adding 1.5kg of amino functionalized graphene oxide, continuing to react for 2.5h, filtering, washing, and freeze-drying to obtain a composite material;
and 4, step 4:
adding 105kg of polycarbonate diol and 80kg of isophorone diisocyanate into a reaction kettle, introducing nitrogen for protection, heating to 85 ℃, reacting for 2 hours, and then cooling to room temperature; adding 15kg of 1, 4-butanediol, 32kg of ethylenediamine, 2.6kg of the composite material and 2.4kg of antioxidant 1010, stirring uniformly at 75 ℃, then sealing and mixing for 4h, and cooling with cold water to obtain the polyurethane rubber sheet material.
Example 3:
step 1: preparing nano silicon dioxide powder:
s1: weighing 2.8kg of hexadecyl trimethyl ammonium bromide as a template agent, adding 2kg of urea and 8.5kg of deionized water, stirring and dissolving to obtain a solution A; uniformly mixing 6.9kg of cyclohexane, 4.2kg of ethanol and 7kg of ethyl orthosilicate to obtain a solution B;
s2: mixing the solution A and the solution B prepared in the step S1, stirring and reacting for 45min at room temperature, wherein the rotating speed is 1700rpm; then heating to 130 ℃, and continuously stirring for reacting for 8 hours to obtain emulsion; centrifuging, taking out supernatant, washing, drying, and sintering at 600 deg.C for 6h to obtain nanometer silicon dioxide powder;
step 2: modifying the surface of graphene oxide:
mixing 2.9kg of graphene oxide with 9.2kg of deionized water, performing ultrasonic treatment to obtain a uniformly dispersed graphene oxide suspension, then adding 0.8kg of ethylenediamine, continuously stirring the mixed solution at 70 ℃ for 2.8h, centrifuging to remove supernatant, and performing freeze drying for 65h to obtain the amino functionalized graphene oxide.
And step 3: preparing a composite material:
dispersing 2.7kg of nano silicon dioxide powder in N, N-dimethylformamide, adding 3.3kg of toluene-2, 4-diisocyanate after carrying out ultrasonic treatment for 15min, heating to 80 ℃ in a water bath, and reacting for 9h; then adding 1.8kg of amino functionalized graphene oxide, continuing to react for 2.5h, filtering, washing, and freeze-drying to obtain a composite material;
and 4, step 4:
adding 105kg of polycarbonate diol and 80kg of isophorone diisocyanate into a reaction kettle, introducing nitrogen for protection, heating to 80 ℃, reacting for 2 hours, and then cooling to room temperature; adding 15kg of 1,4 butanediol, 34kg of ethylenediamine, 2.7kg of composite material and 2.5kg of antioxidant 1010, stirring uniformly at 77 ℃, sealing and mixing for 4.5h, and cooling with cold water to obtain the polyurethane sheet material.
Example 4:
step 1: preparing nano silicon dioxide powder:
s1: weighing 3kg of hexadecyl trimethyl ammonium bromide as a template agent, adding 2.1kg of urea and 9kg of deionized water, and stirring for dissolving to obtain a solution A; uniformly mixing 7.5kg of cyclohexane, 5kg of ethanol and 7.8kg of ethyl orthosilicate to obtain a solution B;
s2: mixing the solution A and the solution B prepared in the step S1, and stirring and reacting for 60min at room temperature at the rotating speed of 2000rpm; then heating to 140 ℃, and continuously stirring for reacting for 8 hours to obtain emulsion; centrifuging, taking out supernatant, washing, drying, and sintering at 600 deg.C for 6h to obtain nanometer silicon dioxide powder;
step 2: modifying the surface of graphene oxide:
mixing 3kg of graphene oxide with 9.5kg of deionized water, performing ultrasonic treatment to obtain a uniformly dispersed graphene oxide suspension, then adding 1kg of ethylenediamine, continuously stirring the mixed solution at 75 ℃ for 3h, centrifuging to remove supernatant, and performing freeze drying for 72h to obtain the amino functionalized graphene oxide.
And step 3: preparing a composite material:
dispersing 2.8kg of nano silicon dioxide powder in N, N-dimethylformamide, adding 3.3kg of toluene-2, 4-diisocyanate after carrying out ultrasonic treatment for 15min, heating to 80 ℃ in a water bath, and reacting for 10h; then adding 2kg of amino functionalized graphene oxide, continuing to react for 3 hours, filtering, washing, and freeze-drying to obtain a composite material;
and 4, step 4:
adding 110kg of polycarbonate diol and 90kg of isophorone diisocyanate into a reaction kettle, introducing nitrogen for protection, heating to 90 ℃, reacting for 2 hours, and then cooling to room temperature; adding 20kg of 1, 4-butanediol, 35kg of ethylenediamine, 3kg of composite material and 3kg of antioxidant 1010, stirring uniformly at the temperature of 80 ℃, sealing and mixing for 5 hours, and cooling in cold water to obtain the polyurethane sheet material.
Comparative example 1:
the polyurethane film was prepared using a conventional method.
Adding 100kg of polycarbonate diol and 60kg of isophorone diisocyanate into a reaction kettle, introducing nitrogen for protection, heating to 80 ℃, reacting for 2 hours, and then cooling to room temperature; adding 10kg of 1, 4-butanediol, 30kg of ethylenediamine and 2kg of antioxidant 1010, stirring uniformly at 70 ℃, then sealing and mixing for 3 hours, and cooling in cold water to obtain the polyurethane sheet material.
Comparative example 2:
and directly adding nano silicon dioxide and graphene oxide to prepare the polyurethane film.
Adding 105kg of polycarbonate diol and 80kg of isophorone diisocyanate into a reaction kettle, introducing nitrogen for protection, heating to 85 ℃, reacting for 2 hours, and then cooling to room temperature; adding 15kg of 1, 4-butanediol, 32kg of ethylenediamine, 0.6kg of graphene oxide, 2kg of nano silicon dioxide powder and 2.4kg of antioxidant 1010, stirring uniformly at 75 ℃, then sealing and mixing for 4h, and cooling with cold water to obtain the polyurethane sheet material.
Comparative example 3:
the polyurethane film is prepared by the composite material which does not contain the nano silicon dioxide.
Step 1: modifying the surface of graphene oxide:
mixing 2.9kg of graphene oxide with 9.2kg of deionized water, performing ultrasonic treatment to obtain a uniformly dispersed graphene oxide suspension, then adding 0.8kg of ethylenediamine, continuously stirring the mixed solution at 70 ℃ for 2.8h, centrifuging to remove supernatant, and performing freeze drying for 65h to obtain the amino functionalized graphene oxide.
And 2, step: preparing a composite material:
dispersing 1.8kg of amino functionalized graphene oxide in N, N-dimethylformamide, carrying out ultrasonic treatment for 15min, adding 3.3kg of toluene-2, 4-diisocyanate, heating in a water bath to 80 ℃, and reacting for 2.5h; filtering, washing, freezing and drying to obtain a composite material;
and 3, step 3:
adding 105kg of polycarbonate diol and 80kg of isophorone diisocyanate into a reaction kettle, introducing nitrogen for protection, heating to 80 ℃, reacting for 2 hours, and then cooling to room temperature; adding 15kg of 1, 4-butanediol, 34kg of ethylenediamine, 2.7kg of composite material and 2.5kg of antioxidant 1010, stirring uniformly at 77 ℃, then sealing and mixing for 4.5h, and cooling with cold water to obtain the polyurethane sheet material.
Comparative example 4:
the polyurethane film is prepared from the composite material which does not contain the graphene oxide.
Step 1: preparing nano silicon dioxide powder:
s1: weighing 3kg of hexadecyl trimethyl ammonium bromide as a template agent, adding 2.1kg of urea and 9kg of deionized water, and stirring to dissolve to obtain a solution A; uniformly mixing 7.5kg of cyclohexane, 5kg of ethanol and 7.8kg of ethyl orthosilicate to obtain a solution B;
s2: mixing the solution A and the solution B prepared in the step S1, and stirring and reacting for 60min at room temperature at the rotating speed of 2000rpm; then heating to 140 ℃, and continuously stirring for reacting for 8 hours to obtain emulsion; centrifuging, taking out supernatant, washing, drying, and sintering at 600 deg.C for 6h to obtain nanometer silicon dioxide powder;
step 2: preparing a composite material:
dispersing 2.8kg of nano silicon dioxide powder in N, N-dimethylformamide, adding 3.3kg of toluene-2, 4-diisocyanate after carrying out ultrasonic treatment for 15min, heating to 80 ℃ in a water bath, and reacting for 10h; filtering, washing, freezing and drying to obtain a composite material;
and step 3:
adding 110kg of polycarbonate diol and 90kg of isophorone diisocyanate into a reaction kettle, introducing nitrogen for protection, heating to 90 ℃, reacting for 2 hours, and then cooling to room temperature; adding 20kg of 1, 4-butanediol, 35kg of ethylenediamine, 3kg of composite material and 3kg of antioxidant 1010, stirring uniformly at the temperature of 80 ℃, sealing and mixing for 5 hours, and cooling in cold water to obtain the polyurethane sheet material.
Experiment: the polyurethane rubber materials prepared in examples 1 to 4 and comparative examples 1 to 4 are subjected to performance tests, and the test results are shown in the following table,
ultraviolet light testing: selecting a deuterium lamp as an ultraviolet light source to simulate ultraviolet rays emitted by the sun, placing a polyurethane film material with the thickness of 10mm between a spectrum analyzer (model: AQ 6374) and the deuterium lamp, and testing the ultraviolet light transmittance of different wavelengths;
and (3) hardness testing: according to the standard test method of ASTM D2240 durometer hardness;
and (4) conclusion: the data of examples 1 to 4 show that the polyurethane film prepared by the method has good ultraviolet resistance, and particularly has excellent shielding effect on short-wave ultraviolet rays and medium-wave ultraviolet rays; the shielding efficiency of the invention is above 70% for long wave ultraviolet. The data of comparative example 1, which is referred to in example 1, show that the hardness and the ultraviolet shielding effect of the polyurethane film are poor under the condition of not adding the conforming material; by taking the example 2 as a reference, the data of the comparative example 2 show that after the nano silicon dioxide powder and the graphene oxide are directly added, although the polyurethane film has a certain ultraviolet shielding effect, the hardness of the material is reduced due to the uneven dispersion of the inorganic filler, and the composite material prepared by reacting the nano silicon dioxide, the amino functionalized graphene oxide and the toluene-2, 4 diisocyanate has a good blending effect with the polyurethane, so that the problem of performance reduction caused by uneven dispersion of the inorganic material can be effectively avoided; by taking the example 3 as a reference, the data of the comparative example 3 show that the nano silicon dioxide has good shielding effect on ultraviolet rays, and the ultraviolet-proof effect of the material can be realized by adding the silicon dioxide; by taking the example 4 as a reference, the data of the comparative example 4 show that the graphene oxide can be used as a reinforcing material to improve the hardness of the product, and the existence of the graphene oxide can further improve the dispersion effect of the composite material in polyurethane, so that the product with excellent performance is obtained.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A processing technology of an ultraviolet-proof polyurethane film for laminated glass is characterized by comprising the following steps: the method comprises the following steps:
step 1:
s1: weighing a cationic surfactant, adding urea and deionized water, stirring and dissolving to obtain a solution A; uniformly mixing cyclohexane, ethanol and silicate ester compound to obtain a solution B;
s2: mixing and stirring the solution A and the solution B prepared in the step S1 for reaction; then heating and continuously stirring for reaction to obtain emulsion; centrifuging, washing, drying and sintering at high temperature to obtain nano silicon dioxide powder;
and 2, step:
mixing graphene oxide with deionized water, and adding a diamine monomer after ultrasonic treatment; centrifuging to remove supernatant, and freeze-drying to obtain amino functionalized graphene oxide;
and step 3:
dispersing nano silicon dioxide powder in N, N-dimethylformamide, adding toluene-2, 4-diisocyanate after ultrasonic treatment, heating to 80 ℃ in a water bath, and reacting for 8-10 h; then, adding amino functionalized graphene oxide, continuously reacting for 2 to 3 hours, filtering, washing, and freeze-drying to obtain a composite material;
and 4, step 4:
adding polyol and diisocyanate into a reaction kettle, heating to 80-90 ℃ under the protection of nitrogen, reacting for 2 hours, and then cooling to room temperature; adding micromolecular alcohol, a chain extender, a composite material and an antioxidant, stirring uniformly at 70-80 ℃, then sealing and mixing for 3-5h, and cooling with cold water to obtain the polyurethane rubber sheet material.
2. The process for preparing the ultraviolet-proof polyurethane film for laminated glass according to claim 1, wherein the process comprises the following steps: in S1, the contents of the components of the solution A are 2.4 to 3 parts by weight of cationic surfactant, 1.6 to 2.2 parts by weight of urea and 8 to 9 parts by weight of deionized water; the contents of the components in the solution B are 6.4 to 7.5 parts by weight of cyclohexane, 3.2 to 4 parts by weight of ethanol and 6.4 to 7.8 parts by weight of silicate ester compounds.
3. The process for preparing the ultraviolet-proof polyurethane film for laminated glass according to claim 1, wherein the process comprises the following steps: in S1, the cationic surfactant is any one of cetyl trimethyl ammonium bromide, cetyl triethyl ammonium bromide, cetyl pyridine bromide, octadecyl trimethyl ammonium bromide and cetyl pyridine bromide; the silicate ester compound is any one of methyl orthosilicate, ethyl orthosilicate, propyl orthosilicate, isopropyl silicate and butyl orthosilicate.
4. The process for preparing the ultraviolet-proof polyurethane film for laminated glass according to claim 1, wherein the process comprises the following steps: in the step 2, the used amount of each substance is 2 to 3 parts by weight of graphene oxide, 9 to 9.5 parts by weight of deionized water and 0.3 to 1 part by weight of diamine monomer.
5. The process for preparing the ultraviolet-proof polyurethane film for laminated glass according to claim 1, wherein the process comprises the following steps: in the step 2, the diamine monomer is any one of ethylenediamine, butanediamine and hexanediamine.
6. The process for preparing the ultraviolet-proof polyurethane film for laminated glass according to claim 1, wherein the process comprises the following steps: in the step 3, the usage amount of each component is 2 to 2.8 parts of nano silicon dioxide powder, 2.8 to 3.3 parts of toluene-2, 4 diisocyanate and 1 to 2 parts of amino functionalized graphene oxide by weight.
7. The process for processing the ultraviolet-proof polyurethane film for laminated glass according to claim 1, which is characterized in that: in the step 4, the usage amount of each component is 100 to 110 parts of polyol, 10 to 20 parts of small molecular alcohol, 60 to 90 parts of isocyanate, 30 to 35 parts of chain extender, 2 to 3 parts of composite material and 2 to 3 parts of antioxidant by weight.
8. The process for preparing the ultraviolet-proof polyurethane film for laminated glass according to claim 1, wherein the process comprises the following steps: in the step 4, the polyol is any one of polycarbonate diol, polyhexamethylene lactone polyol, polytetrahydrofuran polyol and polypropylene oxide polyol, and the average molecular weight is 1000-3000; the small molecular alcohol is any one of 1, 4-butanediol, 1, 4-cyclohexanedimethanol, diethylene glycol and 1, 2-propylene glycol; the diisocyanate is any one of p-phenylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, lysine diisocyanate and trimethylsilyl isocyanate; the chain extender is any one of dimethylolpropionic acid, di-o-chloroaniline methane, methyl propylene glycol, ethylenediamine and 2, 4-diamino-3-methylthio-5-propyl chlorobenzene; the antioxidant is any one of antioxidant 1010, antioxidant 1035 and antioxidant 168.
9. The polyurethane film prepared by the processing technology of the ultraviolet-proof polyurethane film for laminated glass according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211483586.2A CN115960543A (en) | 2022-11-24 | 2022-11-24 | Processing technology of ultraviolet-proof polyurethane film for laminated glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211483586.2A CN115960543A (en) | 2022-11-24 | 2022-11-24 | Processing technology of ultraviolet-proof polyurethane film for laminated glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115960543A true CN115960543A (en) | 2023-04-14 |
Family
ID=87360693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211483586.2A Pending CN115960543A (en) | 2022-11-24 | 2022-11-24 | Processing technology of ultraviolet-proof polyurethane film for laminated glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115960543A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942669A (en) * | 2012-11-09 | 2013-02-27 | 浙江德斯泰塑胶有限公司 | High-strength polyurethane film for laminated glass and preparation method thereof |
| KR20130024993A (en) * | 2011-08-24 | 2013-03-11 | 서울대학교산학협력단 | Silica nano particle, method for producing the same, complex and method for producing the same |
| CN107497404A (en) * | 2017-10-18 | 2017-12-22 | 中南林业科技大学 | A kind of preparation method of modified graphene oxide sorbing material |
| CN109177360A (en) * | 2018-07-27 | 2019-01-11 | 江苏贝格丽新材料科技有限公司 | A kind of paper-plastic stick ornament materials and its manufacturing method |
| CN110354696A (en) * | 2018-04-09 | 2019-10-22 | 天津大学 | A kind of flexible high-pass graphene oxide/silica composite films and preparation method thereof |
| CN112940282A (en) * | 2021-03-05 | 2021-06-11 | 陕西科技大学 | Composite modified graphene modified waterborne polyurethane emulsion and preparation method thereof |
-
2022
- 2022-11-24 CN CN202211483586.2A patent/CN115960543A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130024993A (en) * | 2011-08-24 | 2013-03-11 | 서울대학교산학협력단 | Silica nano particle, method for producing the same, complex and method for producing the same |
| CN102942669A (en) * | 2012-11-09 | 2013-02-27 | 浙江德斯泰塑胶有限公司 | High-strength polyurethane film for laminated glass and preparation method thereof |
| CN107497404A (en) * | 2017-10-18 | 2017-12-22 | 中南林业科技大学 | A kind of preparation method of modified graphene oxide sorbing material |
| CN110354696A (en) * | 2018-04-09 | 2019-10-22 | 天津大学 | A kind of flexible high-pass graphene oxide/silica composite films and preparation method thereof |
| CN109177360A (en) * | 2018-07-27 | 2019-01-11 | 江苏贝格丽新材料科技有限公司 | A kind of paper-plastic stick ornament materials and its manufacturing method |
| CN112940282A (en) * | 2021-03-05 | 2021-06-11 | 陕西科技大学 | Composite modified graphene modified waterborne polyurethane emulsion and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 于荣荣等: "石墨烯复合纤维与纺织品的功能", 《染整技术》, vol. 39, no. 6, pages 10 - 15 * |
| 苗广远等: "纯棉织物的氧化石墨烯防紫外线整理", 《印染》, vol. 1, no. 02, pages 143 - 144 * |
| 赵青: "氧化石墨烯整理对粘胶织物性能的影响", 《毛纺科技》, vol. 46, no. 4, pages 23 - 26 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2402394A1 (en) | Room-temperature curable epoxy structural adhesive composition and preparation method thereof | |
| JP2849386B2 (en) | Photochromic article and method for producing the same | |
| EP2776526B1 (en) | A structural adhesive sheet specifically for use in a mirror base of an automobile interior rear-view mirror and a method for producing the same | |
| JPS62148509A (en) | Transparent film and laminated material having said film | |
| GB979997A (en) | Polyurethane compositions producing process and laminated glass | |
| CN110964308A (en) | Explosion-proof heat-insulation TPU film for automobile glass and preparation method thereof | |
| CN115960543A (en) | Processing technology of ultraviolet-proof polyurethane film for laminated glass | |
| CN104149429A (en) | Uvioresistant high-transmitting polyester film and preparation method thereof | |
| CN106496450A (en) | A kind of stress response type polymethyl methacrylate modified silicon boron polymer microgel and preparation method thereof | |
| CN113736049A (en) | Polyurethane film material and preparation method thereof | |
| CN112708116A (en) | High-molecular-weight and high-flexibility polyester polyol for cable shielding film and preparation method and application thereof | |
| CN111393885A (en) | PET film with excellent gas barrier property and preparation process thereof | |
| CN111926626A (en) | Moisture-proof antibacterial corrugated paper and preparation method thereof | |
| JPH10324579A (en) | Heat insulating transparent porous material, its production and producing device | |
| CN110564353A (en) | Metal composite water-based adhesive for sound wave attenuation and preparation method thereof | |
| JPH05270870A (en) | Intermediate film for laminated glass | |
| CN111169137B (en) | Anti-ultraviolet protective film and preparation method thereof | |
| CN114891171B (en) | High-transparency polymer composite material for glass and preparation method thereof | |
| CN110920196A (en) | Ultraviolet-resistant high-haze high-transmittance polyester film and preparation method thereof | |
| CN116769277A (en) | Medium-temperature fast-curing high-hardness laminated resin | |
| CN114149771B (en) | Aqueous EAU high-environment-friendly synthetic athletic ground material adhesive and preparation method thereof | |
| US7854814B2 (en) | Method for forming a laminated window that can exhibit a variable level of adhesion | |
| CN115975486B (en) | Polyurethane composite coating for TAC film and preparation method thereof | |
| CN113845852A (en) | Glass PVB film with sound insulation and ultraviolet insulation functions and preparation method thereof | |
| CN103087205A (en) | Preparation method of aqueous-solution-method-modified starch rubber functional auxiliary agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |