CN105038341B - Multimedia equipment polymeric coating material and preparation method thereof - Google Patents
Multimedia equipment polymeric coating material and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to multimedia equipment polymeric coating material and preparation method thereof, described multimedia equipment polymeric coating material includes that 25 50 parts of polyurethane, 14 20 parts of polytetrafluoroethylene (PTFE), 9 16 parts of styrene, 23 parts of diisononyl phthalate, 69 parts of methyl cyclopentenyl ketone, 47 parts of polytrifluorochloroethylene, 5 10 parts of calcium silicates, 5 12 parts of lithium carbonate, 49 parts of boron nitride, preparation method are comprised the following steps：（1）Mechanical crushing；（2）Heating and mechanical agitation, stirring stirring to above-mentioned composition are homogeneous state；（3）Mixture is carried out into extruder grain with twin (double) screw extruder, extruding zone temperatures are：First paragraph is 160 180 DEG C, and second segment is 190 200 DEG C, and the 3rd section is 210 220 DEG C；（4）It is multimedia equipment polymeric coating material after cooling.The coating material for preparing possesses impact strength higher, wet strength and hardness.
Description
Technical field
The invention belongs to composite high-molecular material field, it is related to coating material and preparation method thereof, more particularly to many matchmakers
Body equipment polymeric coating material and preparation method thereof.
Background technology
Teaching is more with multimedia equipment species, including projecting apparatus, display screen, computer etc..In some multimedia equipments
There is certain coating on surface, and above-mentioned coating can be used for the influence for protecting multimedia equipment to be subject to environment and produce quality problems.
In long-term use, the coating on multimedia equipment surface needs to have impact strength very high, hardness and prevented high humidity
The infringement of degree.Influenceed by above-mentioned problem in order to avoid multimedia equipment, it is necessary to the coating material on multimedia equipment surface
Propose requirement higher.The common coating material such as material such as polyethylene, polypropylene, polyvinyl chloride, polyester, phenolic resin,
Not can effectively solve the problem that above-mentioned problem, it is therefore desirable to which the species of coating material is selected, improve its impact strength, hard
The performances such as degree.
The content of the invention
The technical problem to be solved：The surface of teaching multimedia equipment is all covered with coating, due to wanting for use environment
Ask, above-mentioned coating in the application, it is necessary to have preferable wet strength, hardness higher and stronger impact strength, and
The coating material on multimedia equipment surface common at present is conventional ingredient, and its above-mentioned intensity is relatively low, has much room for improvement.
Technical scheme：The invention discloses multimedia equipment polymeric coating material, described multimedia equipment is high
Molecular coatings material includes the composition of following weight portion：
Polyurethane 25-50 parts,
Polytetrafluoroethylene (PTFE) 14-20 parts,
Styrene 9-16 parts,
Diisononyl phthalate 2-3 parts,
Methyl cyclopentenyl ketone 6-9 parts,
Polytrifluorochloroethylene 4-7 parts,
Calcium silicates 5-10 parts,
Lithium carbonate 5-12 parts,
Boron nitride 4-9 parts.
Preferably, described multimedia equipment polymeric coating material, including following weight portion composition：
Polyurethane 25-50 parts,
Polytetrafluoroethylene (PTFE) 14-20 parts,
Styrene 9-16 parts,
Diisononyl phthalate 2-3 parts,
Methyl cyclopentenyl ketone 6-9 parts,
Polytrifluorochloroethylene 4-7 parts,
Calcium silicates 5-10 parts,
Lithium carbonate 5-12 parts,
Boron nitride 4-9 parts,
Boron carbide 3-6 parts.
It is further preferred that described multimedia equipment polymeric coating material, including following weight portion composition：
Polyurethane 35-40 parts,
Polytetrafluoroethylene (PTFE) 16-19 parts,
Styrene 12-15 parts,
Diisononyl phthalate 2-3 parts,
Methyl cyclopentenyl ketone 7-8 parts,
Polytrifluorochloroethylene 5-6 parts,
Calcium silicates 6-9 parts,
Lithium carbonate 7-10 parts,
Boron nitride 6-8 parts,
Boron carbide 4-5 parts.
It is further preferred that described multimedia equipment polymeric coating material, its composition for including following weight portion：
37 parts of polyurethane,
18 parts of polytetrafluoroethylene (PTFE),
14 parts of styrene,
3 parts of diisononyl phthalate,
7 parts of methyl cyclopentenyl ketone,
6 parts of polytrifluorochloroethylene,
8 parts of calcium silicates,
9 parts of lithium carbonate,
7 parts of boron nitride,
5 parts of boron carbide.
The preparation method of multimedia equipment polymeric coating material, comprises the following steps：
（1）Take calcium silicates, lithium carbonate, boron nitride, boron carbide respectively by weight, above-mentioned each composition is carried out into machinery respectively
Crush, be crushed to above-mentioned each composition mesh number more than 300 mesh；（2）Pyroreaction kettle is opened, pyroreaction kettle is heated, pressed
Weight in reactor add 25-50 parts of polyurethane, polytetrafluoroethylene (PTFE) 14-20 parts, styrene 9-16 parts, phthalic acid two it is different
2-3 parts of nonyl ester, is respectively heated and mechanical agitation above-mentioned each composition, and stirring stirring to above-mentioned composition is homogeneous state；
（3）By weight again in pyroreaction kettle add methyl cyclopentenyl ketone be 6-9 part, polytrifluorochloroethylene be 4-7 parts, stir extremely
Uniformly；（4）It is last again to calcium silicates is added in pyroreaction kettle is 5-10 part, lithium carbonate be 5-12 parts, boron nitride be 4-9 parts,
Boron carbide is 3-6 parts, and it is uniform mixture to be stirred for；（5）By step（4）Mixture extruded with twin (double) screw extruder
Granulation, extruding zone temperatures is：First paragraph is 160-180 DEG C, and second segment is 190-200 DEG C, and the 3rd section is 210-220 DEG C；
（6）It is multimedia equipment polymeric coating material after cooling.
The preparation method of described multimedia equipment polymeric coating material, described twin (double) screw extruder rotating speed is
110-130rpm。
The preparation method of described multimedia equipment polymeric coating material, the draw ratio of described twin (double) screw extruder
It is 25:1.
The preparation method of described multimedia equipment polymeric coating material, step（1）Each composition is crushed to mesh number
More than 350 mesh.
Beneficial effect：In multimedia equipment polymeric coating material of the invention, the methyl cyclopentenyl ketone of addition and
Polytrifluorochloroethylene effectively raises the impact strength and wet strength of polymeric coating material of the invention, and is adding
After calcium silicates, lithium carbonate, boron nitride, boron carbide, polymeric coating material big hardness and impact strength are improve, particularly
Boron carbide is added, the impact strength of coating material is further increased.
Specific embodiment
Embodiment 1
（1）Take calcium silicates, lithium carbonate, boron nitride respectively by weight, above-mentioned each composition is carried out into mechanical crushing, powder respectively
Above-mentioned each composition mesh number is broken to more than 300 mesh；（2）Pyroreaction kettle is opened, pyroreaction kettle is heated, by weight to anti-
Addition polyurethane 50Kg, polytetrafluoroethylene (PTFE) 14Kg, styrene 16Kg, diisononyl phthalate 3Kg in kettle are answered, respectively will be upper
Each composition stated is heated and mechanical agitation, and stirring stirring to above-mentioned composition is homogeneous state；（3）It is anti-to high temperature again by weight
It is 4Kg for 9Kg, polytrifluorochloroethylene to answer and added in kettle methyl cyclopentenyl ketone, is stirred until homogeneous；（4）It is last anti-to high temperature again
It is that 5Kg, lithium carbonate are that 12Kg, boron nitride are that 4Kg, boron carbide are 6Kg to answer and add in kettle calcium silicates, and it is uniform mixing to be stirred for
Thing；（5）By step（4）Mixture carry out extruder grain with twin (double) screw extruder, extruding zone temperatures are：First paragraph is 180
DEG C, second segment is 200 DEG C, and the 3rd section is 210 DEG C；（6）It is multimedia equipment polymeric coating material after cooling.
Embodiment 2
（1）Take calcium silicates, lithium carbonate, boron nitride, boron carbide respectively by weight, above-mentioned each composition is carried out into machinery respectively
Crush, be crushed to above-mentioned each composition mesh number more than 300 mesh；（2）Pyroreaction kettle is opened, pyroreaction kettle is heated, pressed
Weight to adding polyurethane 50Kg, polytetrafluoroethylene (PTFE) 14Kg, styrene 16Kg, diisononyl phthalate 3Kg in reactor,
Above-mentioned each composition is heated and mechanical agitation respectively, stirring stirring to above-mentioned composition is homogeneous state；（3）By weight again
To adding methyl cyclopentenyl ketone to be 4Kg for 9Kg, polytrifluorochloroethylene in pyroreaction kettle, it is stirred until homogeneous；（4）Again finally
To adding calcium silicates to be that 5Kg, lithium carbonate are that 12Kg, boron nitride are that 4Kg, boron carbide are 6Kg in pyroreaction kettle, it is stirred for as equal
Even mixture；（5）By step（4）Mixture carry out extruder grain with twin (double) screw extruder, extruding zone temperatures are：First
Section is 180 DEG C, and second segment is 200 DEG C, and the 3rd section is 210 DEG C；（6）It is multimedia equipment polymeric coating material after cooling.
Embodiment 3
（1）Take calcium silicates, lithium carbonate, boron nitride, boron carbide respectively by weight, above-mentioned each composition is carried out into machinery respectively
Crush, be crushed to above-mentioned each composition mesh number more than 300 mesh；（2）Pyroreaction kettle is opened, pyroreaction kettle is heated, pressed
Weight to adding polyurethane 25Kg, polytetrafluoroethylene (PTFE) 20Kg, styrene 9Kg, diisononyl phthalate 2Kg in reactor,
Above-mentioned each composition is heated and mechanical agitation respectively, stirring stirring to above-mentioned composition is homogeneous state；（3）By weight again
To adding methyl cyclopentenyl ketone to be 7Kg for 6Kg, polytrifluorochloroethylene in pyroreaction kettle, it is stirred until homogeneous；（4）Again finally
To adding calcium silicates to be that 10Kg, lithium carbonate are that 5Kg, boron nitride are that 9Kg, boron carbide are 3Kg in pyroreaction kettle, it is stirred for as equal
Even mixture；（5）By step（4）Mixture carry out extruder grain with twin (double) screw extruder, extruding zone temperatures are：First
Section is 160 DEG C, and second segment is 190 DEG C, and the 3rd section is 220 DEG C；（6）It is multimedia equipment polymeric coating material after cooling.
Embodiment 4
（1）Take calcium silicates, lithium carbonate, boron nitride, boron carbide respectively by weight, above-mentioned each composition is carried out into machinery respectively
Crush, be crushed to above-mentioned each composition mesh number more than 300 mesh；（2）Pyroreaction kettle is opened, pyroreaction kettle is heated, pressed
Weight to adding polyurethane 35Kg, polytetrafluoroethylene (PTFE) 19Kg, styrene 15Kg, diisononyl phthalate 2Kg in reactor,
Above-mentioned each composition is heated and mechanical agitation respectively, stirring stirring to above-mentioned composition is homogeneous state；（3）By weight again
To adding methyl cyclopentenyl ketone to be 5Kg for 8Kg, polytrifluorochloroethylene in pyroreaction kettle, it is stirred until homogeneous；（4）Again finally
To adding calcium silicates to be that 6Kg, lithium carbonate are that 10Kg, boron nitride are that 6Kg, boron carbide are 4Kg in pyroreaction kettle, it is stirred for as equal
Even mixture；（5）By step（4）Mixture carry out extruder grain with twin (double) screw extruder, extruding zone temperatures are：First
Section is 180 DEG C, and second segment is 200 DEG C, and the 3rd section is 220 DEG C；（6）It is multimedia equipment polymeric coating material after cooling.
Embodiment 5
（1）Take calcium silicates, lithium carbonate, boron nitride, boron carbide respectively by weight, above-mentioned each composition is carried out into machinery respectively
Crush, be crushed to above-mentioned each composition mesh number more than 300 mesh；（2）Pyroreaction kettle is opened, pyroreaction kettle is heated, pressed
Weight to adding polyurethane 40Kg, polytetrafluoroethylene (PTFE) 16Kg, styrene 12Kg, diisononyl phthalate 3Kg in reactor,
Above-mentioned each composition is heated and mechanical agitation respectively, stirring stirring to above-mentioned composition is homogeneous state；（3）By weight again
To adding methyl cyclopentenyl ketone to be 6Kg for 7Kg, polytrifluorochloroethylene in pyroreaction kettle, it is stirred until homogeneous；（4）Again finally
To adding calcium silicates to be that 9Kg, lithium carbonate are that 7Kg, boron nitride are that 8Kg, boron carbide are 5Kg in pyroreaction kettle, it is stirred for as equal
Even mixture；（5）By step（4）Mixture carry out extruder grain with twin (double) screw extruder, extruding zone temperatures are：First
Section is 160 DEG C, and second segment is 190 DEG C, and the 3rd section is 210 DEG C；（6）It is multimedia equipment polymeric coating material after cooling.
Embodiment 6
（1）Take calcium silicates, lithium carbonate, boron nitride, boron carbide respectively by weight, above-mentioned each composition is carried out into machinery respectively
Crush, be crushed to above-mentioned each composition mesh number more than 300 mesh；（2）Pyroreaction kettle is opened, pyroreaction kettle is heated, pressed
Weight to adding polyurethane 37Kg, polytetrafluoroethylene (PTFE) 18Kg, styrene 14Kg, diisononyl phthalate 3Kg in reactor,
Above-mentioned each composition is heated and mechanical agitation respectively, stirring stirring to above-mentioned composition is homogeneous state；（3）By weight again
To adding methyl cyclopentenyl ketone to be 6Kg for 7Kg, polytrifluorochloroethylene in pyroreaction kettle, it is stirred until homogeneous；（4）Again finally
To adding calcium silicates to be that 8Kg, lithium carbonate are that 9Kg, boron nitride are that 7Kg, boron carbide are 5Kg in pyroreaction kettle, it is stirred for as equal
Even mixture；（5）By step（4）Mixture carry out extruder grain with twin (double) screw extruder, extruding zone temperatures are：First
Section is 170 DEG C, and second segment is 195 DEG C, and the 3rd section is 215 DEG C；（6）It is multimedia equipment polymeric coating material after cooling.
Comparative example 1
（1）Calcium silicates is taken by weight, mechanical crushing is carried out, and is crushed to above-mentioned each composition mesh number more than 300 mesh；（2）
Pyroreaction kettle is opened, pyroreaction kettle is heated, by weight to addition polyurethane 50Kg, polytetrafluoroethylene (PTFE) in reactor
14Kg, styrene 16Kg, diisononyl phthalate 3Kg, are respectively heated and mechanical agitation above-mentioned each composition, are stirred
It is homogeneous state that agitating is mixed to above-mentioned composition；（3）By weight again in pyroreaction kettle add methyl cyclopentenyl ketone be 9Kg,
Polytrifluorochloroethylene is 4Kg, is stirred until homogeneous；（4）Last is again 5Kg to calcium silicates is added in pyroreaction kettle, be stirred for for
Uniform mixture；（5）By step（4）Mixture carry out extruder grain with twin (double) screw extruder, extruding zone temperatures are：The
One section is 180 DEG C, and second segment is 200 DEG C, and the 3rd section is 210 DEG C；（6）It is multimedia equipment polymeric coating layer material after cooling
Material.
Comparative example 2
（1）Take calcium silicates, lithium carbonate, boron nitride respectively by weight, above-mentioned each composition is carried out into mechanical crushing, powder respectively
Above-mentioned each composition mesh number is broken to more than 300 mesh；（2）Pyroreaction kettle is opened, pyroreaction kettle is heated, by weight to anti-
Addition polyurethane 50Kg, polytetrafluoroethylene (PTFE) 14Kg, styrene 16Kg, diisononyl phthalate 3Kg in kettle are answered, respectively will be upper
Each composition stated is heated and mechanical agitation, and stirring stirring to above-mentioned composition is homogeneous state；（3）Finally again to pyroreaction
The interior addition calcium silicates of kettle is 5Kg, lithium carbonate is 12Kg, boron nitride is 4Kg, boron carbide is 6Kg, is stirred for being uniformly to mix
Thing；（4）By step（3）Mixture carry out extruder grain with twin (double) screw extruder, extruding zone temperatures are：First paragraph is 180
DEG C, second segment is 200 DEG C, and the 3rd section is 210 DEG C；（5）It is multimedia equipment polymeric coating material after cooling.
The hardness and impact strength of the coating material of embodiment 1 to 6 and comparative example 1 and 2 are determined, while by embodiment
1 to 6 and comparative example 1 and 2 coating material melt after be coated on stainless steel surfaces, be placed on for the coating wet by coating layer thickness 2mm
It is 90wt% to spend, and during temperature is 26 DEG C of climatic chamber, observes it whether there is foaming behind 45 days, 90 days, 120 days, 150 days, becomes
Shape phenomenon.Result is as follows：
After adding calcium silicates, lithium carbonate, boron nitride, boron carbide, polymeric coating material big hardness and anti-impact are improve
Hit intensity, particularly adds boron carbide, further increases the impact strength of coating material.
Claims (1)
1. the preparation method of multimedia equipment polymeric coating material, it is characterised in that described preparation method step is as follows：
（1）Take calcium silicates, lithium carbonate, boron nitride, boron carbide respectively by weight, above-mentioned each composition is carried out into mechanical powder respectively
It is broken, it is crushed to above-mentioned each composition mesh number more than 300 mesh；（2）Pyroreaction kettle is opened, pyroreaction kettle is heated, by weight
Measure to polyurethane 37Kg, polytetrafluoroethylene (PTFE) 18Kg, styrene 14Kg, diisononyl phthalate 3Kg is added in reactor, divide
Above-mentioned each composition is not heated and mechanical agitation, stirring to above-mentioned composition is homogeneous state；（3）By weight again to high temperature
It is 6Kg for 7Kg, polytrifluorochloroethylene that methyl cyclopentenyl ketone is added in reactor, is stirred until homogeneous；（4）Finally again to high temperature
The interior addition calcium silicates of reactor is 8Kg, lithium carbonate is 9Kg, boron nitride is 7Kg, boron carbide is 5Kg, is stirred for uniformly to mix
Compound；（5）By step（4）Mixture carry out extruder grain with twin (double) screw extruder, extruding zone temperatures are：First paragraph is
170 DEG C, second segment is 195 DEG C, and the 3rd section is 215 DEG C；（6）It is multimedia equipment polymeric coating material after cooling.
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| CN1328360C (en) * | 2005-06-29 | 2007-07-25 | 上海大学 | Powder coating type composite solid lubricant film preparation method and gear wheel with solid lubricant film |
| CN102061121B (en) * | 2010-12-06 | 2016-05-25 | 老虎粉末涂料制造（太仓）有限公司 | A kind of environmental-protection anti-corrosive heat-dissipation powder paint and its preparation method and application |
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| CN104559728A (en) * | 2014-12-12 | 2015-04-29 | 中国航空工业集团公司北京航空材料研究院 | Corrosion-resistant anti-cavitation coating and preparation method thereof |
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