CN112341754A - High-strength low-shrinkage amino molding plastic profile - Google Patents
High-strength low-shrinkage amino molding plastic profile Download PDFInfo
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- 238000000465 moulding Methods 0.000 title claims abstract description 70
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 title claims abstract description 45
- 229920003023 plastic Polymers 0.000 title claims abstract description 35
- 239000004033 plastic Substances 0.000 title claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 42
- 150000001875 compounds Chemical class 0.000 claims abstract description 37
- 239000000835 fiber Substances 0.000 claims abstract description 32
- 229920002635 polyurethane Polymers 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims abstract description 14
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 13
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004202 carbamide Substances 0.000 claims abstract description 12
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 12
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004793 Polystyrene Substances 0.000 claims abstract description 9
- 125000003118 aryl group Chemical group 0.000 claims abstract description 9
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 9
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 9
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 9
- 229920002223 polystyrene Polymers 0.000 claims abstract description 9
- 239000003365 glass fiber Substances 0.000 claims abstract description 8
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000314 lubricant Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 16
- 239000004698 Polyethylene Substances 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000008098 formaldehyde solution Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 238000000498 ball milling Methods 0.000 claims description 6
- 238000004898 kneading Methods 0.000 claims description 6
- 239000000049 pigment Substances 0.000 claims description 6
- 238000007796 conventional method Methods 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 2
- 230000003020 moisturizing effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08J2361/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic and acyclic or carbocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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Abstract
The invention discloses a high-strength low-shrinkage amino molding plastic profile which comprises the following components in percentage by weight: 15-25% of urea, 30-42% of formaldehyde, 6-10% of melamine, 0.2-0.5% of urotropine, 1-2% of lubricant, 3-5% of butyl stearate, 0.5% of pigment2 percent, 0.8 to 1.5 percent of glass fiber, 2 to 5 percent of polyurethane elastomer, 0.2 to 0.4 percent of polystyrene and the balance of crop fiber powder. The shrinkage rate of the section can be obviously reduced after the glass fiber and the polystyrene are added, the elasticity and the impact resistance of the amino molding compound can be obviously improved by adding the polyurethane polymerized by the aromatic polyisocyanate and the polyester polyol, and the notch impact resistance strength can reach 2.1-2.5KJ/m through detection2(ii) a The shrinkage rate can be less than 0.15%.
Description
Technical Field
The invention relates to the technical field of plastic profiles, in particular to a high-strength low-shrinkage amino molding plastic profile.
Background
The amino molding compound is prepared by kneading amino resin, alpha-cellulose, curing agent and other assistants, and through crushing and ball milling, and has the advantages of excellent electric arc resistance, high material hardness, high scratch resistance, low cost, etc. and may be used widely in electric appliance, daily use article, tableware, etc.
In the development of the modern automobile industry, the electrical appliance industry and the textile industry, more and more attention is paid to amino molding compounds with high mechanical strength and low shrinkage rate, namely good dimensional stability. However, with the continuous expansion of the application field of amino molding compound products, the environmental conditions are particularly complex, and the products are greatly damaged, so that the development of the amino molding compound with impact resistance has positive practical significance.
Disclosure of Invention
In view of the above, the present invention provides a high strength low shrinkage amino molding plastic profile.
A high-strength low-shrinkage amino molding plastic profile is composed of a molding plastic and a PE (polyethylene) moisture-preserving functional film;
the molding compound comprises the following components in percentage by weight: 15-25% of urea, 30-42% of formaldehyde solution, 6-10% of melamine, 0.2-0.5% of urotropine, 1-2% of lubricant, 3-5% of butyl stearate, 0.5-2% of pigment, 0.8-1.5% of glass fiber, 2-5% of polyurethane elastomer, 0.2-0.4% of polystyrene and the balance of crop fiber powder.
Preferably, the polyurethane elastomer is polyurethane.
Preferably, the polyurethane is polymerized from aromatic polyisocyanate and polyester polyol.
Preferably, the preparation method of the polyurethane comprises the following steps: aromatic polyisocyanate and polyester polyol are stirred in a metering mode, an acetone solvent with the pH value of 3.5-4.5 is added during the reaction, and after the reaction is completed, the mixture is kept stand for 24-36 hours.
Preferably, the notch impact strength of the amino molding plastic profile is 2.1-2.5KJ/m2(ii) a The shrinkage rate can be less than 0.15%.
The preparation method of the high-strength low-shrinkage amino molding plastic profile comprises the following steps:
A. carrying out polymerization reaction on formaldehyde solution, urotropine and urea in a sealed environment according to a conventional method to obtain amino liquid resin;
B. putting amino liquid resin into a vacuum granulation kneader, adding melamine and crop fiber powder, heating to 70-75 ℃, kneading for 35-45min, vacuumizing until the mass fraction of water in the mixture is 1.4-1.6%, putting the mixture into a crushing pulverizer, and ball-milling to 400 meshes to obtain dry powder resin;
C. mixing the dry powder resin with the rest raw materials of the molding compound, and dispersing to obtain flocculent dry powder fiber molding compound;
D. taking dry powder fiber molding compound, covering PE moisture-keeping functional films on the upper surface and the lower surface of the dry powder fiber molding compound respectively to be used as moisture-keeping isolation layers, and pressing the dry powder fiber molding compound into a sheet shape by a press at the temperature of 40-60 ℃.
The invention provides a high-strength low-shrinkage amino molding plastic profile which comprises the following components in percentage by weight: 15-25% of urea, 30-42% of formaldehyde, 6-10% of melamine, 0.2-0.5% of urotropine, 1-2% of lubricant, 3-5% of butyl stearate, 0.5-2% of pigment, 2-5% of polyurethane elastomer, 0.2-0.4% of polystyrene and the balance of crop fiber powder. The shrinkage rate of the section bar can be obviously reduced after the glass fiber and the polystyrene are added, the elasticity and the impact resistance of the amino-mold 0 plastic can be obviously improved by adding the polyurethane polymerized by the aromatic polyisocyanate and the polyester polyol, and the notch impact resistance strength can reach 2.1-2.5KJ/m through detection2(ii) a The shrinkage rate can be less than 0.15%.
Detailed Description
The embodiments of the invention are described in detail, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example 1
A high-strength low-shrinkage amino molding plastic profile is composed of a molding plastic and a PE (polyethylene) moisture-preserving functional film; the molding compound comprises the following components in percentage by weight: 22% of urea, 37% of formaldehyde solution, 8.5% of melamine, 0.35% of urotropine, 1.2% of lubricant, 3.7% of butyl stearate, 0.8% of pigment, 1.2% of glass fiber, 3.2% of polyurethane elastomer, 0.35% of polystyrene and the balance of crop fiber powder.
The polyurethane elastomer is polyurethane.
The preparation method of the polyurethane comprises the following steps: aromatic polyisocyanate and polyester polyol are stirred in a metering mode, an acetone solvent with the pH value of 3.8 is added during the reaction, and after the reaction is completed, the mixture is kept stand for 32 hours.
The preparation method of the high-strength low-shrinkage amino molding plastic profile comprises the following steps:
A. carrying out polymerization reaction on formaldehyde solution, urotropine and urea in a sealed environment according to a conventional method to obtain amino liquid resin;
B. putting amino liquid resin into a vacuum granulation kneader, adding melamine and crop fiber powder, heating to 72 ℃, kneading for 40min, vacuumizing until the mass fraction of water in the mixture is 1.5%, putting the mixture into a crushing pulverizer, and ball-milling to 400 meshes to obtain dry powder resin;
C. mixing the dry powder resin with the rest raw materials of the molding compound, and dispersing to obtain flocculent dry powder fiber molding compound;
D. taking dry powder fiber molding compound, respectively covering PE moisture-keeping functional films on the upper surface and the lower surface of the dry powder fiber molding compound to be used as moisture-keeping isolating layers, and pressing the dry powder fiber molding compound into a sheet shape by using a press at the temperature of 55 ℃.
The notch impact strength of the amino molding plastic profile is 2.38KJ/m2。
The shrinkage rate of the amino molding plastic profile is 0.10%.
Example 2
A high-strength low-shrinkage amino molding plastic profile is composed of a molding plastic and a PE (polyethylene) moisture-preserving functional film; the molding compound comprises the following components in percentage by weight: 25% of urea, 30% of formaldehyde solution, 10% of melamine, 0.2% of urotropine, 2% of lubricant, 3% of butyl stearate, 2% of pigment, 1.5% of glass fiber, 2% of polyurethane elastomer, 0.4% of polystyrene and the balance of crop fiber powder.
The polyurethane elastomer is polyurethane.
The preparation method of the polyurethane comprises the following steps: aromatic polyisocyanate and polyester polyol are stirred in a metering mode, an acetone solvent with the pH value of 3.5 is added during the reaction, and after the reaction is completed, the mixture is kept stand for 36 hours.
The preparation method of the high-strength low-shrinkage amino molding plastic profile comprises the following steps:
A. carrying out polymerization reaction on formaldehyde solution, urotropine and urea in a sealed environment according to a conventional method to obtain amino liquid resin;
B. putting amino liquid resin into a vacuum granulation kneader, adding melamine and crop fiber powder, heating to 70 ℃, kneading for 45min, vacuumizing until the mass fraction of water in the mixture is 1.4%, putting the mixture into a crushing pulverizer, and ball-milling to 400 meshes to obtain dry powder resin;
C. mixing the dry powder resin with the rest raw materials of the molding compound, and dispersing to obtain flocculent dry powder fiber molding compound;
D. taking dry powder fiber molding compound, respectively covering PE moisture-keeping functional films on the upper surface and the lower surface of the dry powder fiber molding compound to be used as moisture-keeping isolating layers, and pressing the dry powder fiber molding compound into a sheet shape by using a press at the temperature of 60 ℃.
The notch impact strength of the amino molding plastic profile is 2.47KJ/m2。
The shrinkage rate of the amino molding plastic profile is 0.11%.
Example 3
A high-strength low-shrinkage amino molding plastic profile is composed of a molding plastic and a PE (polyethylene) moisture-preserving functional film; the molding compound comprises the following components in percentage by weight: 15% of urea, 42% of formaldehyde solution, 6% of melamine, 0.5% of urotropine, 1% of lubricant, 5% of butyl stearate, 0.5% of pigment, 0.8% of glass fiber, 5% of polyurethane elastomer, 0.2% of polystyrene and the balance of crop fiber powder.
The polyurethane elastomer is polyurethane.
The preparation method of the polyurethane comprises the following steps: aromatic polyisocyanate and polyester polyol are stirred in a metering mode, an acetone solvent with the pH value of 4.5 is added during the reaction, and after the reaction is completed, the mixture is kept stand for 24 hours.
The preparation method of the high-strength low-shrinkage amino molding plastic profile comprises the following steps:
A. carrying out polymerization reaction on formaldehyde solution, urotropine and urea in a sealed environment according to a conventional method to obtain amino liquid resin;
B. putting amino liquid resin into a vacuum granulation kneader, adding melamine and crop fiber powder, heating to 75 ℃, kneading for 35min, vacuumizing until the mass fraction of water in the mixture is 1.6%, putting the mixture into a crushing pulverizer, and ball-milling to 400 meshes to obtain dry powder resin;
C. mixing the dry powder resin with the rest raw materials of the molding compound, and dispersing to obtain flocculent dry powder fiber molding compound;
D. taking dry powder fiber molding compound, respectively covering PE moisture-keeping functional films on the upper surface and the lower surface of the dry powder fiber molding compound to be used as moisture-keeping isolating layers, and pressing the dry powder fiber molding compound into a sheet shape by using a press at the temperature of 40 ℃.
The notch impact strength of the amino molding plastic profile is 2.24KJ/m2。
The shrinkage rate of the amino molding plastic profile is 0.13%.
Comparative example 1
The polyurethane elastomer in example 1 was removed and the remaining formulation and preparation method were unchanged.
The notch impact strength of the amino molding plastic profile is 1.53KJ/m2。
The shrinkage rate of the amino molding plastic profile is 0.33%.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A high-strength low-shrinkage amino molding plastic profile is characterized by consisting of a molding plastic and a PE (polyethylene) film with a moisturizing function; the molding compound comprises the following components in percentage by weight: 15-25% of urea, 30-42% of formaldehyde solution, 6-10% of melamine, 0.2-0.5% of urotropine, 1-2% of lubricant, 3-5% of butyl stearate, 0.5-2% of pigment, 0.8-1.5% of glass fiber, 2-5% of polyurethane elastomer, 0.2-0.4% of polystyrene and the balance of crop fiber powder.
2. A high strength, low shrinkage amino molding plastic profile as claimed in claim 1, wherein said polyurethane elastomer is polyurethane.
3. A high strength, low shrinkage amino molding plastic profile as claimed in claim 2, wherein said polyurethane is polymerized from aromatic polyisocyanate and polyester polyol.
4. The amino molding plastic profile with high strength and low shrinkage as claimed in claim 2, wherein the preparation method of the polyurethane comprises: aromatic polyisocyanate and polyester polyol are stirred in a metering mode, an acetone solvent with the pH value of 3.5-4.5 is added during the reaction, and after the reaction is completed, the mixture is kept stand for 24-36 hours.
5. A high-strength low-shrinkage amino molding compound profile as claimed in claim 1, wherein the notched-bar impact strength of the amino molding compound profile is from 2.1 to 2.5KJ/m2(ii) a The shrinkage rate can be less than 0.15%.
6. A high-strength low-shrinkage amino molding plastic profile as claimed in any of claims 1 to 5, characterized in that the preparation method comprises the following steps:
A. carrying out polymerization reaction on formaldehyde solution, urotropine and urea in a sealed environment according to a conventional method to obtain amino liquid resin;
B. putting amino liquid resin into a vacuum granulation kneader, adding melamine and crop fiber powder, heating to 70-75 ℃, kneading for 35-45min, vacuumizing until the mass fraction of water in the mixture is 1.4-1.6%, putting the mixture into a crushing pulverizer, and ball-milling to 400 meshes to obtain dry powder resin;
C. mixing the dry powder resin with the rest raw materials of the molding compound, and dispersing to obtain flocculent dry powder fiber molding compound;
D. taking dry powder fiber molding compound, covering PE moisture-keeping functional films on the upper surface and the lower surface of the dry powder fiber molding compound respectively to be used as moisture-keeping isolation layers, and pressing the dry powder fiber molding compound into a sheet shape by a press at the temperature of 40-60 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011524800.5A CN112341754A (en) | 2020-12-22 | 2020-12-22 | High-strength low-shrinkage amino molding plastic profile |
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| CN202011524800.5A CN112341754A (en) | 2020-12-22 | 2020-12-22 | High-strength low-shrinkage amino molding plastic profile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248864A (en) * | 2021-05-20 | 2021-08-13 | 乐清市浙新塑料科技有限公司 | Amino molding compound with improved performance and preparation method thereof |
| CN117050440A (en) * | 2023-09-07 | 2023-11-14 | 揭阳市顺佳和化工有限公司 | Modified amino molding compound and preparation method thereof |
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| CN102504481A (en) * | 2011-11-23 | 2012-06-20 | 常州乔尔塑料有限公司 | Amino molding plastic capable of solidifying quickly and being stored for long time |
| CN104015458A (en) * | 2014-06-12 | 2014-09-03 | 扬州市康宇实业有限公司 | Preparation method of high-strength amino modified SMC (Sheet Molding Compound) |
| CN107641287A (en) * | 2016-07-20 | 2018-01-30 | 天长市高新技术创业服务中心 | A kind of low-shrinkage amino moulding compound suitable for juvenile product |
| CN110628177A (en) * | 2018-06-22 | 2019-12-31 | 南京百美塑业有限公司 | High-toughness amino molding plastic |
| CN110627980A (en) * | 2018-06-21 | 2019-12-31 | 南京百美塑业有限公司 | Amino molding plastic with low shrinkage |
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2020
- 2020-12-22 CN CN202011524800.5A patent/CN112341754A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504481A (en) * | 2011-11-23 | 2012-06-20 | 常州乔尔塑料有限公司 | Amino molding plastic capable of solidifying quickly and being stored for long time |
| CN104015458A (en) * | 2014-06-12 | 2014-09-03 | 扬州市康宇实业有限公司 | Preparation method of high-strength amino modified SMC (Sheet Molding Compound) |
| CN107641287A (en) * | 2016-07-20 | 2018-01-30 | 天长市高新技术创业服务中心 | A kind of low-shrinkage amino moulding compound suitable for juvenile product |
| CN110627980A (en) * | 2018-06-21 | 2019-12-31 | 南京百美塑业有限公司 | Amino molding plastic with low shrinkage |
| CN110628177A (en) * | 2018-06-22 | 2019-12-31 | 南京百美塑业有限公司 | High-toughness amino molding plastic |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248864A (en) * | 2021-05-20 | 2021-08-13 | 乐清市浙新塑料科技有限公司 | Amino molding compound with improved performance and preparation method thereof |
| CN117050440A (en) * | 2023-09-07 | 2023-11-14 | 揭阳市顺佳和化工有限公司 | Modified amino molding compound and preparation method thereof |
| CN117050440B (en) * | 2023-09-07 | 2024-02-06 | 揭阳市顺佳和化工有限公司 | Modified amino molding compound and preparation method thereof |
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Application publication date: 20210209 |