CN114525021A - Preparation process of corrosion-resistant glass fiber reinforced plastic material for septic tank - Google Patents
Preparation process of corrosion-resistant glass fiber reinforced plastic material for septic tank Download PDFInfo
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- CN114525021A CN114525021A CN202011320717.6A CN202011320717A CN114525021A CN 114525021 A CN114525021 A CN 114525021A CN 202011320717 A CN202011320717 A CN 202011320717A CN 114525021 A CN114525021 A CN 114525021A
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- glass fiber
- reinforced plastic
- septic tank
- fiber reinforced
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- 239000000463 material Substances 0.000 title claims abstract description 39
- 239000011152 fibreglass Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000005260 corrosion Methods 0.000 title claims abstract description 23
- 230000007797 corrosion Effects 0.000 title claims abstract description 23
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 24
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 21
- 239000003365 glass fiber Substances 0.000 claims abstract description 16
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 15
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 13
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004593 Epoxy Substances 0.000 claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims abstract description 12
- 229920000573 polyethylene Polymers 0.000 claims abstract description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 12
- 229920006337 unsaturated polyester resin Polymers 0.000 claims abstract description 12
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 239000004014 plasticizer Substances 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims abstract description 8
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000007723 die pressing method Methods 0.000 claims abstract description 4
- 238000007598 dipping method Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Chemical compound CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- JQCXWCOOWVGKMT-UHFFFAOYSA-N phthalic acid diheptyl ester Natural products CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC JQCXWCOOWVGKMT-UHFFFAOYSA-N 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 claims description 4
- HWCKGOZZJDHMNC-UHFFFAOYSA-M tetraethylammonium bromide Chemical compound [Br-].CC[N+](CC)(CC)CC HWCKGOZZJDHMNC-UHFFFAOYSA-M 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 210000002700 urine Anatomy 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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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)
- Laminated Bodies (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
The invention relates to a preparation process of a corrosion-resistant glass fiber reinforced plastic material for a septic tank, which comprises the following raw materials in parts by weight: 40-60 parts of unsaturated polyester resin, 10-20 parts of epoxy modified phenolic resin, 5-10 parts of polytetrafluoroethylene emulsion, 35-50 parts of glass fiber, 5-10 parts of calcium carbonate, 5-10 parts of zinc stearate, 1-3 parts of ethylenediamine, 1-3 parts of accelerator, 4-8 parts of plasticizer, 2-5 parts of lubricant and 1-3 parts of anti-aging agent; the preparation process comprises the following steps: the preparation method comprises the steps of uniformly mixing all raw materials to obtain slurry, uniformly coating the slurry on a polyethylene film, dipping and compacting the polyethylene film, then sending the polyethylene film into an extruder to be compressed to obtain sheets, paving the sheets in a septic tank mold coated with a release agent layer by layer, carrying out die pressing to obtain a preparation process type of the corrosion-resistant glass fiber reinforced plastic material for the septic tank, and demoulding to obtain the glass fiber reinforced plastic material. The material prepared by the preparation process can ensure the mechanical strength required by a large-size septic tank, and can improve the corrosion resistance and the stability.
Description
Technical Field
The invention relates to preparation of a glass fiber reinforced plastic material, in particular to a preparation process of a corrosion-resistant glass fiber reinforced plastic material for a septic tank.
Background
The septic tank is a basic sludge treatment facility and is a domestic sewage pretreatment facility, the principle of the septic tank is that condensate is decomposed at the bottom of the septic tank, hydrated objects on the upper layer flow away in a pipeline, so that the pipeline blockage is prevented, sufficient time is provided for the hydrolysis of the solidified objects (garbage such as excrement and urine) to ensure the environmental sanitation of a domestic community, the diffusion of domestic sewage and pollutants in the living environment is avoided, and mosquito, fly and egg are killed in the anaerobic and septic tank working environment, and the septic tank belongs to a primary transitional domestic treatment structure.
The glass fiber reinforced plastic septic tank is a device which is made of synthetic resin as a matrix and glass fiber reinforced materials and is specially used for treating domestic sewage. Because a large amount of decayed pollutants need to be borne, the material adopted by the glass fiber reinforced plastic septic tank not only needs to achieve good mechanical performance, but also needs to have higher corrosion resistance. The corrosion resistance of the existing glass fiber reinforced plastic material for the septic tank needs to be further improved.
Disclosure of Invention
Based on the above, the invention aims to provide a preparation process of a corrosion-resistant glass fiber reinforced plastic material for a septic tank, which can ensure the mechanical strength required by a large-size septic tank and improve the corrosion resistance and stability.
The technical scheme adopted by the invention is as follows:
a preparation process of a corrosion-resistant glass fiber reinforced plastic material for a septic tank comprises the following raw materials in parts by weight: 40-60 parts of unsaturated polyester resin, 10-20 parts of epoxy modified phenolic resin, 5-10 parts of polytetrafluoroethylene emulsion, 35-50 parts of glass fiber, 5-10 parts of calcium carbonate, 5-10 parts of zinc stearate, 1-3 parts of ethylenediamine, 1-3 parts of accelerator, 4-8 parts of plasticizer, 2-5 parts of lubricant and 1-3 parts of anti-aging agent;
the preparation process comprises the following steps: the preparation method comprises the steps of uniformly mixing all raw materials to obtain slurry, uniformly coating the slurry on a polyethylene film, dipping and compacting the polyethylene film, then sending the polyethylene film into an extruder to be compressed to obtain sheets, paving the sheets in a septic tank mold coated with a release agent layer by layer, carrying out die pressing to obtain a preparation process type of the corrosion-resistant glass fiber reinforced plastic material for the septic tank, and demoulding to obtain the glass fiber reinforced plastic material.
Further, the weight ratio of the unsaturated polyester resin, the epoxy modified phenolic resin and the polytetrafluoroethylene emulsion is 4.5-5:2: 1.
Further, the weight ratio of the glass fiber, the calcium carbonate and the zinc stearate is 5-5.5:1: 1.
Further, the length of the glass fiber is 15-25 nm.
Furthermore, the particle size of the calcium carbonate is 20-40 μm, and the particle size of the zinc stearate is 20-40 μm.
Further, the accelerator is one of triethanolamine, tetraethylammonium bromide and benzyldimethylamine.
Further, the plasticizer is one or more of di-n-octyl phthalate, di (2-ethylhexyl) phthalate and dibutyl phthalate.
Further, the lubricant is silicone powder.
Further, the anti-aging agent is an anti-aging agent 264.
According to the corrosion-resistant glass fiber reinforced plastic material prepared by the process, the unsaturated polyester resin, the epoxy modified phenolic resin and the polytetrafluoroethylene emulsion are matched with each other, so that a formed resin matrix can meet the mechanical strength required by a large-size septic tank; the glass fiber, the calcium carbonate and the zinc stearate are compounded according to a specific proportion to be used as a filler, the compatibility with a resin matrix is good, the toughness and the impact resistance of the material can be further enhanced, and the material is not easy to crack; on the premise of ensuring the mechanical property of the glass fiber reinforced plastic material, auxiliary materials such as a plasticizer, a lubricant, an anti-aging agent and the like are introduced into the system, and through the synergistic cooperation of the raw materials, the corrosion resistance and the stability of the glass fiber reinforced plastic material can be obviously improved on the whole, and the service life of the prepared glass fiber reinforced plastic septic tank is prolonged. The preparation process has simple steps and is easy to realize.
Detailed Description
The corrosion-resistant glass fiber reinforced plastic material for the septic tank, which is prepared by the preparation process, comprises the following raw materials in parts by weight: 40-60 parts of unsaturated polyester resin, 10-20 parts of epoxy modified phenolic resin, 5-10 parts of polytetrafluoroethylene emulsion, 35-50 parts of glass fiber, 5-10 parts of calcium carbonate, 5-10 parts of zinc stearate, 1-3 parts of ethylenediamine, 1-3 parts of accelerator, 4-8 parts of plasticizer, 2-5 parts of lubricant and 1-3 parts of anti-aging agent.
More preferably, the weight ratio of the unsaturated polyester resin, the epoxy modified phenolic resin and the polytetrafluoroethylene emulsion is 4.5-5:2: 1.
More preferably, the weight ratio of the glass fiber, the calcium carbonate and the zinc stearate is 5-5.5:1: 1.
More preferably, the glass fiber has a length of 15 to 25 nm.
More preferably, the particle size of the calcium carbonate is 20 to 40 μm, and the particle size of the zinc stearate is 20 to 40 μm.
Specifically, the accelerator is one of triethanolamine, tetraethylammonium bromide and benzyldimethylamine.
Specifically, the plasticizer is one or more of di-n-octyl phthalate, di (2-ethylhexyl) phthalate and dibutyl phthalate.
Specifically, the lubricant is silicone powder.
Specifically, the anti-aging agent is an anti-aging agent 264.
The preparation process comprises the following steps: the preparation method comprises the steps of uniformly mixing all raw materials to obtain slurry, uniformly coating the slurry on a polyethylene film, dipping and compacting the polyethylene film, then sending the polyethylene film into an extruder to be compressed to obtain sheets, paving the sheets in a septic tank mold coated with a release agent layer by layer, carrying out die pressing to obtain a preparation process type of the corrosion-resistant glass fiber reinforced plastic material for the septic tank, and demoulding to obtain the glass fiber reinforced plastic material.
Example one
The corrosion-resistant glass fiber reinforced plastic material for the septic tank, prepared by the embodiment, comprises the following raw materials in parts by weight:
40 parts of unsaturated polyester resin, 16 parts of epoxy modified phenolic resin, 8 parts of polytetrafluoroethylene emulsion, 35 parts of glass fiber, 7 parts of calcium carbonate, 7 parts of zinc stearate, 1 part of ethylenediamine, 1 part of tetraethylammonium bromide, 6 parts of di (2-ethylhexyl) phthalate, 4 parts of silicone powder and 1 part of anti-aging agent.
The anti-aging agent is an anti-aging agent 264.
Example two
The corrosion-resistant glass fiber reinforced plastic material for the septic tank, prepared by the embodiment, comprises the following raw materials in parts by weight:
50 parts of unsaturated polyester resin, 22 parts of epoxy modified phenolic resin, 11 parts of polytetrafluoroethylene emulsion, 50 parts of glass fiber, 10 parts of calcium carbonate, 10 parts of zinc stearate, 2 parts of ethylenediamine, 3 parts of benzyl dimethylamine, 8 parts of di-n-octyl phthalate, 2 parts of silicone powder and 2 parts of anti-aging agent.
The anti-aging agent is an anti-aging agent 264.
EXAMPLE III
The corrosion-resistant glass fiber reinforced plastic material for the septic tank, prepared in the embodiment, comprises the following raw materials in parts by weight:
60 parts of unsaturated polyester resin, 26 parts of epoxy modified phenolic resin, 13 parts of polytetrafluoroethylene emulsion, 48 parts of glass fiber, 9 parts of calcium carbonate, 9 parts of zinc stearate, 3 parts of ethylenediamine, 3 parts of triethanolamine, 4 parts of di-n-octyl phthalate, 5 parts of silicone powder and 3 parts of anti-aging agent.
The anti-aging agent is an anti-aging agent 264.
The performance of the glass fiber reinforced plastic materials prepared in the first to third examples is respectively detected, and the detection results show that the glass fiber reinforced plastic materials in the first to third examples have the tensile strength of more than 145MPa, the bending strength of more than 110MPa, the shear strength of more than 160kPa, and the impact strength of 36KJ/m2The above.
According to the corrosion-resistant glass fiber reinforced plastic material prepared by the process, the unsaturated polyester resin, the epoxy modified phenolic resin and the polytetrafluoroethylene emulsion are matched with each other, so that a formed resin matrix can meet the mechanical strength required by a large-size septic tank; the glass fiber, the calcium carbonate and the zinc stearate are compounded according to a specific proportion to be used as a filler, the compatibility with a resin matrix is good, the toughness and the impact resistance of the material can be further enhanced, and the material is not easy to crack; on the premise of ensuring the mechanical property of the glass fiber reinforced plastic material, auxiliary materials such as a plasticizer, a lubricant, an anti-aging agent and the like are introduced into the system, and through the synergistic cooperation of the raw materials, the corrosion resistance and the stability of the glass fiber reinforced plastic material can be obviously improved on the whole, and the service life of the prepared glass fiber reinforced plastic septic tank is prolonged. The preparation process has simple steps and is easy to realize.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. A preparation process of a corrosion-resistant glass fiber reinforced plastic material for a septic tank is characterized by comprising the following steps of: the glass fiber reinforced plastic material comprises the following raw materials in parts by weight: 40-60 parts of unsaturated polyester resin, 10-20 parts of epoxy modified phenolic resin, 5-10 parts of polytetrafluoroethylene emulsion, 35-50 parts of glass fiber, 5-10 parts of calcium carbonate, 5-10 parts of zinc stearate, 1-3 parts of ethylenediamine, 1-3 parts of accelerator, 4-8 parts of plasticizer, 2-5 parts of lubricant and 1-3 parts of anti-aging agent;
the preparation process comprises the following steps: the preparation method comprises the steps of uniformly mixing all raw materials to obtain slurry, uniformly coating the slurry on a polyethylene film, dipping and compacting the polyethylene film, then sending the polyethylene film into an extruder to be compressed to obtain sheets, paving the sheets in a septic tank mold coated with a release agent layer by layer, carrying out die pressing to obtain a preparation process type of the corrosion-resistant glass fiber reinforced plastic material for the septic tank, and demoulding to obtain the glass fiber reinforced plastic material.
2. The process according to claim 1, characterized in that: the weight ratio of the unsaturated polyester resin, the epoxy modified phenolic resin and the polytetrafluoroethylene emulsion is 4.5-5:2: 1.
3. The process according to claim 1, characterized in that: the weight ratio of the glass fiber, the calcium carbonate and the zinc stearate is 5-5.5:1: 1.
4. The process according to claim 3, characterized in that: the length of the glass fiber is 15-25 nm.
5. The process according to claim 3, characterized in that: the particle size of the calcium carbonate is 20-40 mu m, and the particle size of the zinc stearate is 20-40 mu m.
6. The process according to claim 1, characterized in that: the accelerator is one of triethanolamine, tetraethylammonium bromide and benzyldimethylamine.
7. The process according to claim 1, characterized in that: the plasticizer is one or more of di-n-octyl phthalate, di (2-ethylhexyl) phthalate and dibutyl phthalate.
8. The process according to claim 1, characterized in that: the lubricant is silicone powder.
9. The process according to claim 1, characterized in that: the anti-aging agent is an anti-aging agent 264.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202011320717.6A CN114525021A (en) | 2020-11-23 | 2020-11-23 | Preparation process of corrosion-resistant glass fiber reinforced plastic material for septic tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202011320717.6A CN114525021A (en) | 2020-11-23 | 2020-11-23 | Preparation process of corrosion-resistant glass fiber reinforced plastic material for septic tank |
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CN114525021A true CN114525021A (en) | 2022-05-24 |
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CN202011320717.6A Pending CN114525021A (en) | 2020-11-23 | 2020-11-23 | Preparation process of corrosion-resistant glass fiber reinforced plastic material for septic tank |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1959635A1 (en) * | 1968-11-27 | 1970-06-11 | Gen Tire & Rubber Co | Laminate structure |
JP2005272487A (en) * | 2004-03-22 | 2005-10-06 | Sumitomo Bakelite Co Ltd | Unsaturated polyester resin molding material and unsaturated polyester resin molded article |
CN101870798A (en) * | 2010-06-29 | 2010-10-27 | 北京玻钢院复合材料有限公司 | Epoxy resin dough moulding compound and preparation method thereof |
CN109265947A (en) * | 2018-08-14 | 2019-01-25 | 安徽汇创新材料有限公司 | A kind of glass toughening manure pit sizing material and preparation method thereof |
CN110294924A (en) * | 2019-06-30 | 2019-10-01 | 河北盛伟基业玻璃钢集团有限公司 | A kind of heat insulation type septic tank and preparation method thereof |
CN110467788A (en) * | 2019-07-11 | 2019-11-19 | 安徽金九鼎复合材料有限公司 | A kind of Corrosion Resistant Frp composite material and preparation method |
-
2020
- 2020-11-23 CN CN202011320717.6A patent/CN114525021A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1959635A1 (en) * | 1968-11-27 | 1970-06-11 | Gen Tire & Rubber Co | Laminate structure |
JP2005272487A (en) * | 2004-03-22 | 2005-10-06 | Sumitomo Bakelite Co Ltd | Unsaturated polyester resin molding material and unsaturated polyester resin molded article |
CN101870798A (en) * | 2010-06-29 | 2010-10-27 | 北京玻钢院复合材料有限公司 | Epoxy resin dough moulding compound and preparation method thereof |
CN109265947A (en) * | 2018-08-14 | 2019-01-25 | 安徽汇创新材料有限公司 | A kind of glass toughening manure pit sizing material and preparation method thereof |
CN110294924A (en) * | 2019-06-30 | 2019-10-01 | 河北盛伟基业玻璃钢集团有限公司 | A kind of heat insulation type septic tank and preparation method thereof |
CN110467788A (en) * | 2019-07-11 | 2019-11-19 | 安徽金九鼎复合材料有限公司 | A kind of Corrosion Resistant Frp composite material and preparation method |
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Application publication date: 20220524 |