CN115466505B - Silicon PU plastic material - Google Patents
Silicon PU plastic material Download PDFInfo
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- CN115466505B CN115466505B CN202211269100.5A CN202211269100A CN115466505B CN 115466505 B CN115466505 B CN 115466505B CN 202211269100 A CN202211269100 A CN 202211269100A CN 115466505 B CN115466505 B CN 115466505B
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- 239000000463 material Substances 0.000 title claims abstract description 45
- 239000004033 plastic Substances 0.000 title claims abstract description 40
- 229920003023 plastic Polymers 0.000 title claims abstract description 40
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 29
- 239000010703 silicon Substances 0.000 title claims abstract description 29
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 37
- 229920000570 polyether Polymers 0.000 claims abstract description 37
- 229920005862 polyol Polymers 0.000 claims abstract description 37
- 150000003077 polyols Chemical class 0.000 claims abstract description 37
- 239000000945 filler Substances 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000002270 dispersing agent Substances 0.000 claims abstract description 16
- 239000012188 paraffin wax Substances 0.000 claims abstract description 16
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 33
- LIPHCKNQPJXUQF-KAMYIIQDSA-N 2-benzylidene-1-heptanol Chemical compound CCCCC\C(CO)=C\C1=CC=CC=C1 LIPHCKNQPJXUQF-KAMYIIQDSA-N 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 229910014314 BYK190 Inorganic materials 0.000 claims description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 239000013530 defoamer Substances 0.000 claims description 12
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 12
- 229910052719 titanium Inorganic materials 0.000 claims description 12
- 239000010936 titanium Substances 0.000 claims description 12
- 239000005995 Aluminium silicate Substances 0.000 claims description 11
- 235000012211 aluminium silicate Nutrition 0.000 claims description 11
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 11
- 239000000395 magnesium oxide Substances 0.000 claims description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 11
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 11
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 9
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 9
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 9
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- OLUJUQKZMDLFII-UHFFFAOYSA-N 1-phenyloct-1-en-3-ol Chemical compound CCCCCC(O)C=CC1=CC=CC=C1 OLUJUQKZMDLFII-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000996 additive effect Effects 0.000 abstract description 5
- 239000002518 antifoaming agent Substances 0.000 abstract description 5
- 239000003054 catalyst Substances 0.000 abstract description 5
- 239000003431 cross linking reagent Substances 0.000 abstract description 5
- 239000012948 isocyanate Substances 0.000 abstract description 5
- 150000002513 isocyanates Chemical class 0.000 abstract description 5
- 239000003085 diluting agent Substances 0.000 abstract description 4
- 239000011256 inorganic filler Substances 0.000 abstract description 4
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 4
- 239000004814 polyurethane Substances 0.000 description 25
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 8
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- -1 polyphenylene Polymers 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- AHDSRXYHVZECER-UHFFFAOYSA-N 2,4,6-tris[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(CN(C)C)=C(O)C(CN(C)C)=C1 AHDSRXYHVZECER-UHFFFAOYSA-N 0.000 description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229920001228 polyisocyanate Polymers 0.000 description 3
- 239000005056 polyisocyanate Substances 0.000 description 3
- 229920000265 Polyparaphenylene Polymers 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of plastics, and provides a nano water-based silicon PU plastic material, which comprises 130-150 parts of polyether polyol, 80-100 parts of paraffin wax, 3-5 parts of cross-linking agent, 0.5-1 part of dispersing agent, 220-300 parts of filler, 15-20 parts of additive, 0.3-0.5 part of toner, 0.5-0.8 part of leveling agent, 20-25 parts of isocyanate, 1-2 parts of defoaming agent, 0.2-0.4 part of catalyst and 20-25 parts of diluent. By the technical scheme, the problems that excessive inorganic filler in the prior art is poor in dispersibility in the silicon PU plastic material, and mechanical properties are reduced while high temperature resistance of the material is improved are solved.
Description
Technical Field
The invention relates to the technical field of plastic materials, in particular to a nano water-based silicon PU plastic material.
Background
The plastic is a material which takes natural or synthetic resin as a main component, is added with various additives, is processed into a certain shape at a certain temperature and pressure, and keeps the shape unchanged at room temperature. The plastic has the advantages of excellent electrical insulation, good thermal conductivity, chemical stability and the like, is widely applied to various fields in daily life, and has higher and higher performance requirements on plastic materials along with the rising of the application of the plastic.
The main advantages of polyurethane are: has the advantages of good mechanical property (high hardness and strength), good ageing resistance (ozone resistance, radiation resistance, wet heat resistance and good conductivity) and the like, and is a widely applied plastic material. Although polyurethane plastics have many advantages, they have the disadvantage of poor high temperature resistance, which significantly limits the range of applications of polyurethane plastics in relatively high temperature environments. At present, the high temperature resistance of polyurethane plastics is usually improved by adding a complexing agent, and the common heat-resistant and heat-transfer complexing agent mainly comprises inorganic matters such as asbestos powder, mica powder, graphite powder, carbon black, clay, zinc oxide, magnesium carbonate and the like, and the good effect can be achieved by adding more inorganic matters, but when the adding amount of the inorganic matters is large, uneven dispersion in a matrix can be caused, so that the mechanical property of the material can be reduced to a certain extent. Therefore, how to improve the dispersibility of the inorganic filler in polyurethane plastics, thereby improving the high temperature resistance and mechanical properties of the material, is a technical problem to be solved by the technicians in the field.
Disclosure of Invention
The invention provides a nano water-based silicon PU plastic material, which solves the problems of poor dispersibility of excessive inorganic filler in the silicon PU plastic material and reduced mechanical property while improving the high temperature resistance of the material in the related art.
The technical scheme of the invention is as follows:
a nano water-based silicon PU plastic material comprises the following components in parts by weight: 130-150 parts of polyether polyol, 80-100 parts of paraffin, 3-5 parts of cross-linking agent, 0.5-1 part of dispersing agent, 220-300 parts of filler, 15-20 parts of additive, 0.3-0.5 part of toner, 0.5-0.8 part of leveling agent, 20-25 parts of isocyanate, 1-2 parts of defoaming agent, 0.2-0.4 part of catalyst and 20-25 parts of diluent.
As a further technical scheme, the nano water-based silicon PU plastic material comprises the following components in parts by weight: 140 parts of polyether polyol, 90 parts of paraffin wax, 3 parts of cross-linking agent, 0.5 part of dispersing agent, 300 parts of filler, 20 parts of additive, 0.34 part of toner, 0.6 part of leveling agent, 20 parts of isocyanate, 2 parts of defoaming agent, 0.2 part of catalyst and 24 parts of diluent.
As a further technical scheme, the polyether polyol consists of polyether polyol DL-2000D and polyether polyol DL-330N with the mass ratio of 1 (1.1-1.2).
As a further technical scheme, the cross-linking agent comprises one of glycerol, trimethylolpropane and diethanolamine.
As a further technical scheme, the filler is formed by mixing talcum powder, kaolin and magnesium oxide in a mass ratio of 10:1:0.24.
As a further technical scheme, the talcum powder is 800 meshes.
As a further technical scheme, the additive is amyl cinnamic alcohol, and the mass ratio of the amyl cinnamic alcohol to the filler is 1:15.
As a further technical scheme, the isocyanate comprises one of toluene diisocyanate, diphenylmethane diisocyanate and polyphenylene polymethylene polyisocyanate.
As a further technical scheme, the defoaming agent comprises one of BYK-141, BYK-054 and BYK-525.
As a further technical scheme, the catalyst comprises one or more of dibutyl tin dilaurate, 2,4, 6-tri (dimethylaminomethyl) phenol and triethylene diamine.
The invention also provides a preparation method of the nano water-based silicon PU plastic material, which comprises the following steps:
s1, preparing raw materials according to the parts by weight;
s2, mixing polyether polyol, paraffin wax and a crosslinking agent in a stirring kettle, adding a dispersing agent while stirring, and continuing stirring for 30min after the adding is finished;
s3, adding a filler, an additive, toner and a leveling agent, heating to 105-115 ℃, keeping the pressure in the kettle above-0.094 MPa, continuously stirring, dehydrating for 2.5h, and cooling to 85+/-2 ℃;
s4, adding isocyanate, reacting for 2 hours at 80-85 ℃, and cooling to 65+/-2 ℃;
s5, adding the defoaming agent, the catalyst and the diluent, stirring for 30min, and discharging to obtain the silicon PU plastic material.
The working principle and the beneficial effects of the invention are as follows:
according to the invention, on one hand, the optimized filler is formed by mixing talcum powder, kaolin and magnesium oxide in a mass ratio of 10:1:0.24, so that the high temperature resistance and the mechanical property of the silicon PU plastic material are improved; on the other hand, amyl cinnamic alcohol is utilized to improve the dispersibility of the filler in the silicon PU plastic material, and further improve the high temperature resistance and mechanical properties of the material.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
S1, preparing materials: 140 parts of polyether polyol, 90 parts of 52# paraffin, 3 parts of trimethylolpropane, 0.5 part of BYK190 dispersing agent, 300 parts of filler, 20 parts of amyl cinnamyl alcohol, 0.34 part of titanium green, 0.6 part of BYK-350 oily leveling agent, 20 parts of toluene diisocyanate, 2 parts of BYK-141 defoamer, 0.2 part of dibutyltin dilaurate and 24 parts of ethyl acetate, wherein the polyether polyol consists of polyether polyol DL-2000D and polyether polyol DL-330N in a mass ratio of 1:1.1, and the filler is formed by mixing talcum powder, kaolin and magnesium oxide in a mass ratio of 10:1:0.24;
s2, mixing polyether polyol, 52# paraffin and trimethylolpropane in a stirring kettle, adding BYK190 dispersing agent while stirring, and continuing stirring for 30min after the adding;
s3, adding filler, amyl cinnamic alcohol, titanium green and BYK-350 oil leveling agent, heating to 105 ℃, keeping the pressure in the kettle above-0.094 MPa, continuously stirring, dehydrating for 2.5h, and cooling to 85+/-2 ℃;
s4, adding toluene diisocyanate, reacting for 2 hours at 80 ℃, cooling to 65+/-2 ℃, adding BYK-141 defoamer, dibutyl tin dilaurate and ethyl acetate, stirring for 30 minutes, and discharging to obtain the silicon PU plastic material.
Example 2
S1, preparing materials: 130 parts of polyether polyol, 80 parts of 52# paraffin, 3 parts of glycerin, 0.5 part of BYK190 dispersing agent, 300 parts of filler, 20 parts of amyl cinnamyl alcohol, 0.3 part of titanium green, 0.5 part of BYK-350 oily leveling agent, 20 parts of diphenylmethane diisocyanate, 2 parts of BYK-054 defoamer, 0.2 part of 2,4, 6-tris (dimethylaminomethyl) phenol and 20 parts of ethyl acetate, wherein the polyether polyol consists of polyether polyol DL-2000D and polyether polyol DL-330N in a mass ratio of 1:1.1, and the filler is formed by mixing talcum powder, kaolin and magnesium oxide in a mass ratio of 10:1:0.24;
s2, mixing polyether polyol, 52# paraffin and glycerol in a stirring kettle, adding BYK190 dispersing agent while stirring, and continuing stirring for 30min after the adding is finished;
s3, adding filler, amyl cinnamic alcohol, titanium green and BYK-350 oil leveling agent, heating to 110 ℃, keeping the pressure in the kettle above-0.094 MPa, continuously stirring, dehydrating for 2.5h, and cooling to 85+/-2 ℃;
s4, adding diphenylmethane diisocyanate, reacting for 2 hours at 80 ℃, cooling to 65+/-2 ℃, adding BYK-054 defoamer, 2,4, 6-tris (dimethylaminomethyl) phenol and ethyl acetate, stirring for 30 minutes, and discharging to obtain the silicon PU plastic material.
Example 3
S1, preparing materials: 150 parts of polyether polyol, 100 parts of 52# paraffin, 5 parts of diethanolamine, 1 part of BYK190 dispersing agent, 225 parts of filler, 15 parts of amyl cinnamyl alcohol, 0.5 part of titanium green, 0.8 part of BYK-350 oily leveling agent, 25 parts of polyphenylene polymethylene polyisocyanate, 1 part of BYK-525 defoamer, 0.4 part of triethylene diamine and 25 parts of ethyl acetate, wherein the polyether polyol consists of polyether polyol DL-2000D and polyether polyol DL-330N in a mass ratio of 1:1.2, and the filler is formed by mixing talcum powder, kaolin and magnesium oxide in a mass ratio of 10:1:0.24;
s2, mixing polyether polyol, 52# paraffin and diethanolamine in a stirring kettle, adding BYK190 dispersing agent while stirring, and continuing stirring for 30min after the adding;
s3, adding filler, amyl cinnamic alcohol, titanium green and BYK-350 oily leveling agent, heating to 115 ℃, keeping the pressure in the kettle above-0.094 MPa, continuously stirring, dehydrating for 2.5h, and cooling to 85+/-2 ℃;
s4, adding polyphenyl polymethylene polyisocyanate, reacting for 2 hours at 85 ℃, cooling to 65+/-2 ℃, adding BYK-525 defoamer, triethylene diamine and ethyl acetate, stirring for 30 minutes, and discharging to obtain the silicon PU plastic material.
Example 4
S1, preparing materials: 140 parts of polyether polyol, 90 parts of 52# paraffin, 3 parts of trimethylolpropane, 0.5 part of BYK190 dispersing agent, 300 parts of filler, 20 parts of amyl cinnamyl alcohol, 0.34 part of titanium green, 0.6 part of BYK-350 oily leveling agent, 20 parts of toluene diisocyanate, 2 parts of BYK-141 defoamer, 0.2 part of dibutyltin dilaurate and 24 parts of ethyl acetate, wherein the polyether polyol consists of polyether polyol DL-2000D and polyether polyol DL-330N in a mass ratio of 1:1.1, and the filler is formed by mixing talcum powder, kaolin and magnesium oxide in a mass ratio of 10:5:1;
s2, mixing polyether polyol, 52# paraffin and trimethylolpropane in a stirring kettle, adding BYK190 dispersing agent while stirring, and continuing stirring for 30min after the adding;
s3, adding filler, amyl cinnamic alcohol, titanium green and BYK-350 oil leveling agent, heating to 105 ℃, keeping the pressure in the kettle above-0.094 MPa, continuously stirring, dehydrating for 2.5h, and cooling to 85+/-2 ℃;
s4, adding toluene diisocyanate, reacting for 2 hours at 80 ℃, cooling to 65+/-2 ℃, adding BYK-141 defoamer, dibutyl tin dilaurate and ethyl acetate, stirring for 30 minutes, and discharging to obtain the silicon PU plastic material.
Comparative example 1
The difference from example 1 is only 15 parts of amyl cinnamic alcohol in S1.
Comparative example 2
The difference from example 1 is only that in S1 there is 30 parts of amyl cinnamic alcohol.
Comparative example 3
The only difference from example 1 is that no amyl cinnamic alcohol was added.
Performance test: the mechanical properties are tested for tensile strength and elongation at break according to the GB/T528-2009 standard; the high temperature resistance was measured by putting the test piece into a heat aging oven and aging at 60 ℃ for 30 days, and the measurement results are shown in table 1.
TABLE 1 tensile Strength and elongation at break of silicon PU Plastic Material
As can be seen from Table 1, the silicon PU plastic materials prepared in examples 1-3 of the present invention have good mechanical properties, and after heat aging for 30 days at 60 ℃, the tensile strength is still maintained at more than 2.6MPa, the elongation at break is maintained at more than 488%, and the silicon PU plastic materials have excellent high temperature resistance. In the embodiment 4, the filler is formed by mixing talcum powder, kaolin and magnesium oxide in a mass ratio of 10:5:1, and the mechanical property and the high temperature resistance of the obtained silicon PU plastic material are not as good as those of the embodiment 1, so that the content of the talcum powder, the kaolin and the magnesium oxide in the filler has a certain influence on the mechanical property and the high temperature resistance of the material. When the mass ratio of talcum powder to kaolin to magnesium oxide is 10:1:0.24, the obtained silicon PU plastic material has the best mechanical property and high temperature resistance.
The preferred amyl cinnamic alcohol and filler are not used in the raw materials of comparative examples 1-2, and the prepared silicon PU plastic material has lower tensile strength, elongation at break and high temperature resistance than those of the examples.
Comparative example 3 was free of amyl cinnamic alcohol and the inorganic filler was unevenly dispersed in the matrix of the material, resulting in a material having inferior mechanical properties and high temperature resistance compared to example 1.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. The silicon PU plastic material is characterized by comprising the following components in parts by weight: 140 parts of polyether polyol, 90 parts of 52# paraffin, 3 parts of trimethylolpropane, 0.5 part of BYK190 dispersing agent, 300 parts of filler, 20 parts of amyl cinnamyl alcohol, 0.34 part of titanium green, 0.6 part of BYK-350 oily leveling agent, 20 parts of toluene diisocyanate, 2 parts of BYK-141 defoamer, 0.2 part of dibutyltin dilaurate and 24 parts of ethyl acetate, wherein the polyether polyol consists of polyether polyol DL-2000D and polyether polyol DL-330N in a mass ratio of 1:1.1, and the filler is formed by mixing talcum powder, kaolin and magnesium oxide in a mass ratio of 10:1:0.24.
2. The preparation method of the silicon PU plastic material according to claim 1, wherein polyether polyol, 52# paraffin and trimethylolpropane are mixed in a stirring kettle, BYK190 dispersing agent is added while stirring, and stirring is continued for 30min after the adding is completed; adding filler, amyl cinnamic alcohol, titanium green and BYK-350 oily leveling agent, heating to 105 ℃, keeping the pressure in the kettle above-0.094 MPa, continuously stirring, dehydrating for 2.5h, and cooling to 85+/-2 ℃; toluene diisocyanate is added to react for 2 hours at 80 ℃, then the temperature is reduced to 65+/-2 ℃, BYK-141 defoamer, dibutyl tin dilaurate and ethyl acetate are added to be stirred for 30 minutes, and then the silicon PU plastic material is obtained after discharging.
3. The silicon PU plastic material is characterized by comprising the following components in parts by weight: 140 parts of polyether polyol, 90 parts of 52# paraffin, 3 parts of trimethylolpropane, 0.5 part of BYK190 dispersing agent, 300 parts of filler, 20 parts of amyl cinnamyl alcohol, 0.34 part of titanium green, 0.6 part of BYK-350 oily leveling agent, 20 parts of toluene diisocyanate, 2 parts of BYK-141 defoamer, 0.2 part of dibutyltin dilaurate and 24 parts of ethyl acetate, wherein the polyether polyol consists of polyether polyol DL-2000D and polyether polyol DL-330N in a mass ratio of 1:1.1, and the filler is formed by mixing talcum powder, kaolin and magnesium oxide in a mass ratio of 10:5:1.
4. The method for preparing the silicon PU plastic material according to claim 3, wherein polyether polyol, 52# paraffin and trimethylolpropane are mixed in a stirring kettle, BYK190 dispersing agent is added while stirring, and stirring is continued for 30min after the adding is completed; adding filler, amyl cinnamic alcohol, titanium green and BYK-350 oily leveling agent, heating to 105 ℃, keeping the pressure in the kettle above-0.094 MPa, continuously stirring, dehydrating for 2.5h, and cooling to 85+/-2 ℃; toluene diisocyanate is added to react for 2 hours at 80 ℃, then the temperature is reduced to 65+/-2 ℃, BYK-141 defoamer, dibutyl tin dilaurate and ethyl acetate are added to be stirred for 30 minutes, and then the silicon PU plastic material is obtained after discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211269100.5A CN115466505B (en) | 2022-10-17 | 2022-10-17 | Silicon PU plastic material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211269100.5A CN115466505B (en) | 2022-10-17 | 2022-10-17 | Silicon PU plastic material |
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| Publication Number | Publication Date |
|---|---|
| CN115466505A CN115466505A (en) | 2022-12-13 |
| CN115466505B true CN115466505B (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211269100.5A Active CN115466505B (en) | 2022-10-17 | 2022-10-17 | Silicon PU plastic material |
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