CN115703912B - Low-precipitation temperature-resistant polyvinyl chloride cable material composition and preparation method thereof - Google Patents
Low-precipitation temperature-resistant polyvinyl chloride cable material composition and preparation method thereof Download PDFInfo
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- CN115703912B CN115703912B CN202110909056.9A CN202110909056A CN115703912B CN 115703912 B CN115703912 B CN 115703912B CN 202110909056 A CN202110909056 A CN 202110909056A CN 115703912 B CN115703912 B CN 115703912B
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- 239000000203 mixture Substances 0.000 title claims abstract description 46
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 title claims abstract description 34
- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 34
- 238000001556 precipitation Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims description 8
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 claims abstract description 23
- 239000004014 plasticizer Substances 0.000 claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- 239000010703 silicon Substances 0.000 claims abstract description 16
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 12
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 8
- 229920000728 polyester Polymers 0.000 claims abstract description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 6
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000314 lubricant Substances 0.000 claims abstract description 5
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 3
- 239000004927 clay Substances 0.000 claims abstract description 3
- 239000003549 soybean oil Substances 0.000 claims abstract description 3
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000005543 nano-size silicon particle Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 238000009775 high-speed stirring Methods 0.000 claims description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 4
- 239000004209 oxidized polyethylene wax Substances 0.000 claims description 4
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims description 4
- 239000008117 stearic acid Substances 0.000 claims description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- XDILCINHTMZTGG-UHFFFAOYSA-N 3-(3-dodecoxy-3-oxopropyl)sulfanylpropanoic acid Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(O)=O XDILCINHTMZTGG-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 229920001519 homopolymer Polymers 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims description 2
- 239000001923 methylcellulose Substances 0.000 claims description 2
- 235000010981 methylcellulose Nutrition 0.000 claims description 2
- 150000001282 organosilanes Chemical class 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- -1 polysiloxane Polymers 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 125000005375 organosiloxane group Chemical group 0.000 claims 1
- 238000006068 polycondensation reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004132 cross linking Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 16
- 238000009472 formulation Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The low-precipitation temperature-resistant polyvinyl chloride cable material composition comprises the following components in parts by weight: polyvinyl chloride resin, calcium zinc stabilizer, polyester plasticizer, epoxidized soybean oil, organic silicon glass resin, silane coupling agent, polymethyl methacrylate, cobalt naphthenate, fine calcium carbonate, calcined clay, lubricant and antioxidant. By adding the organic silicon glass resin, the low-molecular-weight polymethyl methacrylate resin and the silane coupling agent, the polyester plasticizer in the mixture is firmly locked in the composition by utilizing the micro-crosslinking effect of the silicon glass resin, so that the precipitation of the plasticizer at high temperature is effectively prevented. The composition has excellent high temperature resistance and precipitation resistance, and also has higher elasticity and strength.
Description
Technical Field
The invention belongs to the field of processing and application of high polymer materials, and particularly relates to a low-precipitation temperature-resistant polyvinyl chloride cable material composition.
Background
Polyvinyl chloride (PVC) is a plastic material with the largest domestic output and low price at present. Because the polyvinyl chloride resin has good physical and mechanical properties, the polyvinyl chloride resin is widely used in various fields of industry, agriculture, construction, transportation, electric power telecommunication, packaging and the like. The cable material is an important field with large PVC consumption. However, the cable material using polyvinyl chloride as the base material has the problems that the plasticizer is easy to separate out, the performance is greatly reduced, and the like.
Many patents for solving the problem of plasticizer precipitation in a PVC formula, such as China patent application CN104829887A, adopt PVC and nitrile rubber to blend, and chlorinated paraffin plasticizer is added to prepare a sealing strip; chinese patent application CN103739987a uses DOP, DOA as cold-resistant plasticizer, etc. According to analysis of similar patents, the prior art mainly prevents precipitation of the plasticizer or improves the heat resistance of the plasticizer by adding the rubber, the heat-resistant and cold-resistant plasticizer, the heat-resistant stabilizer and the like, but the rubber is easy to age in a high-temperature environment, and the plasticizer in the material is precipitated, so that the performance of the cable material is greatly reduced and even the cable material cannot be used.
Thus, a new polyvinyl chloride cable material composition and a preparation method thereof are needed to solve the technical problems.
Disclosure of Invention
The invention provides a low-precipitation temperature-resistant polyvinyl chloride cable material composition which has excellent high temperature resistance, high elasticity, high tensile strength and high elongation while resisting precipitation.
The invention provides a low-precipitation temperature-resistant polyvinyl chloride cable material composition, which comprises the following components in parts by weight:
wherein the polyvinyl chloride resin is polyvinyl chloride with the polymerization degree of 1300-1700.
Wherein the calcium zinc stabilizer is CZX-683 purchased from Sendeli environmental protection new material science and technology company.
Wherein the polyester plasticizer is Japanese PN-400.
Wherein the organic silicon glass resin is highly cross-linked polymerized polysiloxane formed by hydrolyzing and polycondensing organic siloxane containing multiple functional groups.
The preparation method of the organic silicon glass resin comprises the following steps:
(1) Uniformly dispersing nano silicon dioxide into an ethanol solution to prepare a first nano silicon dioxide dispersion liquid with the mass fraction of 55%, heating to 65 ℃ and rapidly stirring for 30min, then adjusting the temperature to 45 ℃, adding an organosilane coupling agent with the mass of 1.5-2.0% of the mass of the first nano silicon dioxide dispersion liquid, rapidly stirring for 2 h, then treating for 10min by using ultrasonic waves, and naturally cooling to room temperature to obtain a second nano silicon dioxide dispersion liquid;
(2) Mixing the second nano silicon dioxide dispersion liquid prepared in the step (1), methyltriethylalkoxysilane, acetic acid and water according to the proportion of 8-10:6.5-7.5:0.5-1.0: uniformly mixing the components together according to the mass ratio of 0.5-1.0, heating and stirring at 70 ℃, adding methyl cellulose accounting for 0.5% of the mass of the second nano silicon dioxide dispersion liquid, and continuously stirring for 10 hours to obtain an organosilicon resin prepolymer;
(3) Mixing and stirring the organosilicon resin prepolymer prepared in the step (2) with isopropanol in a mass ratio of 1:1.5-2 in an ultrasonic field for 40min to obtain the organosilicon glass resin.
The solid content of the prepared organic silicon glass resin is more than or equal to 50 percent.
In the preparation method of the organic silicon glass resin, in the step (2), the stirring speed of stirring is 150-180 rpm, and the stirring time is 40min.
Wherein the silane coupling agent is KH-550.
Wherein the polymethyl methacrylate is a homopolymer of low molecular weight methyl methacrylate, and the weight average molecular weight is 35000-75000 ten thousand
Wherein, the cobalt naphthenate is a powdery chemical auxiliary agent which plays a role in enabling the organic silicon glass resin to be micro-crosslinked in the processing process of the composition.
The lubricant is a mixture of stearic acid and oxidized polyethylene wax, and the weight ratio of the stearic acid to the oxidized polyethylene wax is 1:1.2-2.0.
Wherein the antioxidant is a mixture of hindered phenols 1010 and lauryl thiodipropionate (DLDTP) in a weight ratio of 2:1-1.5.
The invention also provides a preparation method of the low-precipitation temperature-resistant polyvinyl chloride cable material composition, which comprises the following steps:
(1) Weighing polyvinyl chloride resin, calcium zinc stabilizer, polyester plasticizer, epoxy soybean oil, lubricant, fine calcium carbonate, calcined clay, silane coupling agent, antioxidant, organic silicon glass resin and cobalt naphthenate according to a proportion, then adding the materials into a high-speed mixing agent for high-speed stirring, heating the stirring machine to a certain temperature, stirring for 5-10 minutes, then adding the polymethyl methacrylate resin weighed according to the proportion into the high-speed mixing machine, and continuing high-speed stirring for 3-5 minutes to discharge the materials;
(2) Putting the materials mixed in the steps into a double-screw extruder for extrusion granulation;
(3) And (3) carrying out hot granulation, cooling by a fan, conveying into a storage bin and packaging to obtain the low-precipitation high-temperature-resistant polyvinyl chloride cable material composition.
Wherein in the step (1), the heating temperature of the stirrer is 100+/-5 ℃ and the stirring speed is 1000-1500 revolutions per minute.
Wherein in the step (2), the temperature of the twin-screw extruder is 140-160 ℃ and the rotating speed of the main machine is 80-100r/min.
The invention also provides a cable, which comprises the low-precipitation temperature-resistant polyvinyl chloride cable material composition
The invention has the following beneficial technical effects:
(1) According to the invention, the organic silicon glass resin is added, and the polyester plasticizer is absorbed by the organic silicon glass resin under the action of the silane coupling agent, so that the polyester plasticizer in the mixture is firmly locked in the composition under the action of micro-crosslinking of the silicon glass resin, and the precipitation of the plasticizer at high temperature is effectively prevented; the silane functions as both a compatibilizer in the composition and a strong lock for the plasticizer within the composition.
(2) In the invention, the polymethyl methacrylate resin with low molecular weight not only better plays a role of an auxiliary compatilizer (if the molecular weight is too high, the toughness of the composition is easily deteriorated), but also is matched with the antioxidant, so that the heat resistance of the composition is greatly improved, and the aging time is prolonged.
(3) The invention adopts polyvinyl chloride with the polymerization degree of 1300-1700, and the higher polymerization degree can ensure the mechanical property and the processing property of the composition, and simultaneously has the property of precipitation-resistant plasticizer and the heat resistance.
(4) The composition has excellent high temperature resistance and precipitation resistance, and also has higher elasticity and strength.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The following tables 1 and 2 show the formulations of the examples and comparative examples, respectively, of the present invention, wherein:
in the embodiment, the calcium-zinc stabilizer is CZX-683 of Sendeli environmental protection new material science and technology company; the organic silicon glass resin is prepared in a laboratory, is milk white liquid and has the solid content of 55 percent; the polyvinyl chloride resin has a polymerization degree of 1700 by an ethylene method; polymethyl methacrylate is a product of Shanghai screening quasi-biotechnology limited company with a molecular weight of 75000 ten thousand.
Table 1 formulation of the examples of the present invention
Table 2 formulation of comparative example of the present invention
Differences between comparative examples and examples:
the difference between comparative example 1 and example 2 is that the silicone glass resin was replaced with powdered nitrile rubber;
comparative example 2 and example 2 differ in that there is no addition polymerization of methyl methacrylate;
comparative example 3 differs from example 2 in that no silane coupling agent was added;
comparative example 4 differs from example 2 in that a high molecular weight polymethyl methacrylate was used;
comparative example 5 differs from example 2 in that a glass resin having a solid content of 30% was used.
The procedure for the preparation of the comparative examples and examples was essentially the same, except that the formulation of the components was different.
Performance testing
The insulating material at 90 ℃ according to GB/T8815-2008 national standard is tested, and the results are shown in tables 3 and 4.
TABLE 3 results of Performance test of samples of examples of the invention
TABLE 4 results of Performance test of comparative samples of the invention
As can be seen from the performance test results of the embodiment of the invention, the composition has excellent high temperature resistance and precipitation resistance, the test results are superior to those of the comparative example, and the composition has higher tensile strength. The performance of the insulating material meets the national standard requirement.
From the results of the performance test of the comparative example, it can be seen that:
the composition of comparative example 1, which did not use a silicone glass resin, and the compositions of comparative examples 2 to 3, which did not use polymethyl methacrylate, a silane coupling agent, were inferior in both anti-precipitation effect and heat aging quality loss to the examples of the present invention;
the composition of comparative example 4, which uses high molecular weight polymethyl methacrylate, has a greatly reduced elongation, indicating poor toughness of the composition;
the composition of comparative example 5, which uses a low solids silicone glass resin, has a significantly higher mass loss after aging than the loss of the present invention, indicating that the anti-precipitation performance is inferior to the present invention.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. The low-precipitation temperature-resistant polyvinyl chloride cable material composition comprises the following components in parts by weight:
wherein the solid content of the organic silicon glass resin is more than or equal to 50 percent;
wherein the polymethyl methacrylate is a homopolymer of low molecular weight methyl methacrylate, and the weight average molecular weight of the polymethyl methacrylate is 35000-75000 ten thousand;
the preparation method of the organic silicon glass resin comprises the following steps:
(1) Uniformly dispersing nano silicon dioxide into an ethanol solution to prepare a first nano silicon dioxide dispersion liquid with the mass fraction of 55%, heating to 65 ℃ and rapidly stirring for 30min, then adjusting the temperature to 45 ℃, adding an organosilane coupling agent with the mass of 1.5-2.0% of the mass of the first nano silicon dioxide dispersion liquid, rapidly stirring for 2 h, then treating for 10min by using ultrasonic waves, and naturally cooling to room temperature to obtain a second nano silicon dioxide dispersion liquid;
(2) Mixing the second nano silicon dioxide dispersion liquid prepared in the step (1), methyltriethylalkoxysilane, acetic acid and water according to the proportion of 8-10:6.5-7.5:0.5-1.0: uniformly mixing the components together according to the mass ratio of 0.5-1.0, heating and stirring at 70 ℃, adding methyl cellulose accounting for 0.5% of the mass of the second nano silicon dioxide dispersion liquid, and continuously stirring for 10 hours to obtain an organosilicon resin prepolymer;
(3) Mixing and stirring the organosilicon resin prepolymer prepared in the step (2) with isopropanol in a mass ratio of 1:1.5-2 in an ultrasonic field for 40min to obtain the organosilicon glass resin.
2. The polyvinyl chloride cable material composition of claim 1, wherein the polyvinyl chloride resin is polyvinyl chloride having a degree of polymerization of 1300-1700.
3. The polyvinyl chloride cable material composition of claim 1, wherein the silicone glass resin is a highly crosslinked polymeric polysiloxane prepared by hydrolytic polycondensation of a multifunctional organosiloxane.
4. The polyvinyl chloride cable material composition according to claim 1, wherein the lubricant is a mixture of stearic acid and oxidized polyethylene wax in a weight ratio of stearic acid to oxidized polyethylene wax=1:1.2-2.0.
5. The polyvinyl chloride cable material composition of claim 1, wherein the antioxidant is a mixture of hindered phenols 1010 and lauryl thiodipropionate (DLDTP) in a weight ratio of 2:1-1.5.
6. The method for preparing the low-precipitation temperature-resistant polyvinyl chloride cable material composition according to any one of claims 1-5, comprising:
(1) Weighing polyvinyl chloride resin, calcium zinc stabilizer, polyester plasticizer, epoxy soybean oil, lubricant, fine calcium carbonate, calcined clay, silane coupling agent, antioxidant, organic silicon glass resin and cobalt naphthenate according to a proportion, then adding the materials into a high-speed mixing agent for high-speed stirring, heating the stirring machine to a certain temperature, stirring for 5-10 minutes, then adding the polymethyl methacrylate resin weighed according to the proportion into the high-speed mixing machine, and continuing high-speed stirring for 3-5 minutes to discharge the materials;
(2) Putting the materials mixed in the steps into a double-screw extruder for extrusion granulation;
(3) And (3) carrying out hot granulation, cooling by a fan, conveying into a storage bin and packaging to obtain the low-precipitation high-temperature-resistant polyvinyl chloride cable material composition.
7. The method for preparing a polyvinyl chloride cable material composition according to claim 6, wherein in the step (2), the temperature of the twin-screw extruder is 140-160 ℃ and the rotation speed of the host machine is 80-100r/min.
8. A cable comprising the low-precipitation temperature-resistant polyvinyl chloride cable material composition of any one of claims 1-5.
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| CN202110909056.9A CN115703912B (en) | 2021-08-09 | 2021-08-09 | Low-precipitation temperature-resistant polyvinyl chloride cable material composition and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4346145A (en) * | 1981-01-05 | 1982-08-24 | Western Electric Co., Inc. | Coating composition and coated articles |
| CN107418099A (en) * | 2017-08-08 | 2017-12-01 | 淄博信晟机电技术有限公司 | Polychloroethylene composition of extremely low precipitation and preparation method thereof |
| CN107540977A (en) * | 2016-06-28 | 2018-01-05 | 中国石油化工股份有限公司 | A kind of anti-precipitation property refrigerator-freezer PVC sealing strip composition and preparation method thereof |
| CN108034253A (en) * | 2017-12-22 | 2018-05-15 | 枞阳县三金颜料有限责任公司 | A kind of silicone glass resin |
-
2021
- 2021-08-09 CN CN202110909056.9A patent/CN115703912B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4346145A (en) * | 1981-01-05 | 1982-08-24 | Western Electric Co., Inc. | Coating composition and coated articles |
| CN107540977A (en) * | 2016-06-28 | 2018-01-05 | 中国石油化工股份有限公司 | A kind of anti-precipitation property refrigerator-freezer PVC sealing strip composition and preparation method thereof |
| CN107418099A (en) * | 2017-08-08 | 2017-12-01 | 淄博信晟机电技术有限公司 | Polychloroethylene composition of extremely low precipitation and preparation method thereof |
| CN108034253A (en) * | 2017-12-22 | 2018-05-15 | 枞阳县三金颜料有限责任公司 | A kind of silicone glass resin |
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| CN115703912A (en) | 2023-02-17 |
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