CN113717340A - Simulated coral and preparation method thereof - Google Patents

Simulated coral and preparation method thereof Download PDF

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Publication number
CN113717340A
CN113717340A CN202110778891.3A CN202110778891A CN113717340A CN 113717340 A CN113717340 A CN 113717340A CN 202110778891 A CN202110778891 A CN 202110778891A CN 113717340 A CN113717340 A CN 113717340A
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China
Prior art keywords
component
parts
weight
polyether polyol
catalyst
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Pending
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CN202110778891.3A
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Chinese (zh)
Inventor
宋涛
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Yantai Jierui Aquarium Products Co ltd
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Yantai Jierui Aquarium Products Co ltd
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Priority to CN202110778891.3A priority Critical patent/CN113717340A/en
Publication of CN113717340A publication Critical patent/CN113717340A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4825—Polyethers containing two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38

Abstract

The invention relates to a simulated coral and a preparation method thereof, which consists of a component A and a component B, wherein the component A comprises 50-80 parts by weight of polyether polyol and 20-50 parts by weight of diisocyanate; the component B comprises 30-50 parts of polyether polyol, 2-10 parts of chain extender and 7.5-20 parts of catalyst by weight. Adding diisocyanate into polyether polyol, reacting at 80 +/-5 ℃ for 2.5-3.5 hours, and continuously stirring at the speed of 100 revolutions per minute to obtain a component A; heating the chain extender to 110-125 ℃ for melting, adding a catalyst and polyether polyol for reacting for 2.5-3.5 hours to obtain a component B, and mixing the components in a weight ratio of 100: 90-100: the component A and the component B of the adhesive are mixed evenly and then injected into a silica gel mold. The invention uses a semi-prepolymer method to prepare the simulated coral, prepares the component A and the component B in advance, has small viscosity difference of two groups of materials, small quality ratio difference, easy and uniform mixing, simple process control condition and stable product quality.

Description

Simulated coral and preparation method thereof
Technical Field
The invention relates to the technical field of chemical materials, in particular to a simulated coral and a preparation method thereof.
Background
The artificial coral, also known as pseudocoral or artificial coral, creates an atmosphere in the sea bottom for people in a modern marine museum, and allows people to appear as if being placed in the real sea bottom when viewing marine organisms. The artificial coral is mainly made of PVC and polyester. The main preparation method of the polyester elastomer product is to mix ether glycol, diisocyanate and a chain extender and synthesize the mixture by a prepolymer method or a semi-prepolymer method, namely, the prepolymer containing excessive isocyanate and the chain extender are mixed and react to prepare the polyester elastomer product.
Compared with a semi-prepolymer method, the prepolymer method has higher operation temperature, the prepared prepolymer has short curing time, fast viscosity increase and poorer fluidity after being mixed and reacted with a chain extender, and because the viscosity of the prepolymer is high, the mixing proportion of the prepolymer and the chain extender is greatly different, the prepolymer and the chain extender are difficult to be uniformly mixed, particularly products with higher hardness have short service life in a kettle, and products with complex structures and higher product strength requirements cannot be produced. Therefore, semi-prepolymer methods are usually employed for the production of structurally complex products.
Disclosure of Invention
In order to overcome the defects of the prior art, a simulated coral and a preparation method thereof are provided to solve the problems in the background technology. The invention uses a semi-prepolymer method to prepare the simulated coral, the viscosity difference of two groups of materials is small, the quality ratio difference of the two groups of materials is small, the two groups of materials are easy to be mixed uniformly, and the product quality is stable.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a simulated coral, comprising: consists of two components of a component A and a component B,
the component A comprises 50-80 parts by weight of polyether polyol and 20-50 parts by weight of diisocyanate;
the component B comprises 30-50 parts of polyether polyol, 2-10 parts of chain extender and 1-20 parts of catalyst by weight.
As an embodiment of the present invention: the hydroxyl equivalent weight of the polyether polyol is 300-2000, and the functionality of the polyether polyol is 2-4; the polyether polyol is one or more of polyethylene glycol ether, polypropylene glycol ether, polypentaerythritol ether, polytetrahydrofuran ether glycol and polycaprolactone glycol; or one or more of the above-mentioned substances, and then selecting one or more of the above-mentioned copolymers; or the polyether polyol is selected from low-unsaturation polyether, hydroxyl-terminated polybutadiene, and a semi-prepolymer of hydroxyl-terminated polyol and isocyanate.
As an embodiment of the present invention: the functionality of the diisocyanate is between 2.0 and 2.7, preferably the functionality is between 2.0 and 2.2; the diisocyanate is one or a mixture of more of 2, 6-toluene diisocyanate, 4 '-diphenylmethane diisocyanate, carbodiimide-uretonimine modified 4,4' -diphenylmethane diisocyanate, 2, 4 '-diphenylmethane diisocyanate, 4' -dicyclohexylmethane diisocyanate and isophorone diisocyanate.
As an embodiment of the present invention: the chain extender is selected from one or more of 1, 4-butanediol, ethylene glycol, 1, 6-hexanediol, diethyl toluene diamine and 4,4 '-diamino-3, 3' -dichlorodiphenylmethane.
As an embodiment of the present invention: the catalyst comprises 2-10 parts by weight of tertiary amine catalyst, 0.5-5 parts by weight of organic tin catalyst and 5-15 parts by weight of organic acid catalyst.
The tertiary amine catalyst is selected from one or more of triethanolamine, triethylene diamine, N-dimethyl cyclohexylamine and dimethyl ethanolamine; the organic tin catalyst is selected from one or more of dibutyltin dilaurate, stannous octoate, dibutyltin diacetate and dibutyltin dimaleate; the oleic acid catalyst is one or more selected from oleic acid, azelaic acid, adipic acid and citric acid.
The preparation method of the simulated coral comprises the following steps: the method comprises the following steps: step one, preparing a component A, adding diisocyanate into polyether polyol, reacting for 2.5-3.5 hours at the temperature of 80 +/-5 ℃, continuously stirring at the speed of 100 rpm, reacting to generate a prepolymer, cooling the prepolymer to room temperature, filling, sealing and storing in a sealed manner; preparing a component B, heating the chain extender to 110-125 ℃ for melting, adding the catalyst and the polyether polyol for reacting for 2.5-3.5 hours, uniformly stirring in the reaction process, cooling to room temperature, filling, sealing and storing; step three, mixing the following components in percentage by weight of 100: 90-100: and (3) uniformly mixing the component A and the component B of the 110, injecting the mixture into a silica gel mold, vacuumizing, defoaming, standing and curing, opening the mold after 24 hours, and taking out a finished product.
The invention has the beneficial effects that: the invention uses a semi-prepolymer method to prepare the simulated coral, prepares the component A and the component B in advance, has small viscosity difference of two groups of materials, small quality ratio difference, easy and uniform mixing, simple process control condition, easy operation and stable product quality.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
50 parts by weight of a polyether polyol having a hydroxyl equivalent weight of 300 and a functionality of 2; adding 20 parts by weight of diisocyanate, wherein the functionality of the diisocyanate is 2.0; reacting for 3.5 hours at the temperature of 75 ℃, stirring continuously at the speed of 100 r/min to react to generate a prepolymer, cooling the prepolymer to room temperature, filling, sealing and storing to obtain the component A.
2 parts of chain extender by weight, wherein the chain extender is one of 1, 4-butanediol, ethylene glycol, 1, 6-hexanediol, diethyl toluene diamine and 4,4 '-diamino-3, 3' -dichlorodiphenylmethane, the selected chain extender is melted at 125 ℃, and then 2 parts of tertiary amine catalyst is added, and the tertiary amine catalyst is one of triethanolamine, triethylene diamine, N-dimethyl cyclohexylamine and dimethyl ethanolamine; adding 0.5 part of organic tin catalyst, wherein the organic tin catalyst is selected from one of dibutyltin dilaurate, stannous octoate, dibutyltin diacetate and dibutyltin dimaleate, and adding 5 parts of organic acid catalyst, and the organic acid catalyst is selected from one of oleic acid, azelaic acid, adipic acid and citric acid; and adding 30 parts by weight of polyether polyol, reacting for 2.5 hours, uniformly stirring in the reaction process, cooling to room temperature, filling, sealing and storing to obtain the component B. Mixing the following components in a weight ratio of 100: and (3) uniformly mixing the component A and the component B of the 90, injecting the mixture into a coral silica gel mold, vacuumizing, defoaming, standing and curing, opening the mold after 24 hours, and taking out a finished product.
Example two:
80 parts by weight of polyether polyol, wherein the polyether polyol has a hydroxyl equivalent weight of 300 and a functionality of 2; adding 50 parts by weight of diisocyanate, wherein the functionality of the diisocyanate is 2.0; reacting for 2.5 hours at the temperature of 85 ℃, stirring continuously at the speed of 100 r/min to react to generate a prepolymer, cooling the prepolymer to room temperature, filling, sealing and storing to obtain the component A.
10 parts by weight of chain extender, wherein the chain extender is one of 1, 4-butanediol, ethylene glycol, 1, 6-hexanediol, diethyl toluene diamine and 4,4 '-diamino-3, 3' -dichlorodiphenylmethane, the selected chain extender is melted at 110 ℃, and 5 parts of tertiary amine catalyst is added, and the tertiary amine catalyst is one of triethanolamine, triethylene diamine, N-dimethyl cyclohexylamine and dimethyl ethanolamine; adding 5 parts of organic tin catalyst, wherein the organic tin catalyst is selected from one of dibutyltin dilaurate, stannous octoate, dibutyltin diacetate and dibutyltin dimaleate, and adding 10 parts of organic acid catalyst, and the organic acid catalyst is selected from one of oleic acid, azelaic acid, adipic acid and citric acid; and adding 50 parts by weight of polyether polyol, reacting for 3.5 hours, uniformly stirring in the reaction process, cooling to room temperature, filling, sealing and storing to obtain the component B. Mixing the following components in a weight ratio of 100: and (3) uniformly mixing the component A and the component B of the 110, injecting the mixture into a coral silica gel mold, vacuumizing, defoaming, standing and curing, opening the mold after 24 hours, and taking out a finished product.
Example three:
65 parts by weight of polyether polyol, wherein the polyether polyol has a hydroxyl equivalent weight of 300 and a functionality of 2; adding 35 parts by weight of diisocyanate, the functionality of which is 2.0; reacting for 3 hours at the temperature of 80 ℃, continuously stirring at the speed of 100 r/min to generate a prepolymer, cooling the prepolymer to room temperature, filling, sealing and storing to obtain the component A.
6 parts by weight of a chain extender, wherein the chain extender is one of 1, 4-butanediol, ethylene glycol, 1, 6-hexanediol, diethyl toluenediamine and 4,4 '-diamino-3, 3' -dichlorodiphenylmethane, 4 parts of a tertiary amine catalyst is added after the selected chain extender is melted at 118 ℃, and the tertiary amine catalyst is one of triethanolamine, triethylenediamine, N-dimethylcyclohexylamine and dimethylethanolamine; adding 3 parts of organic tin catalyst, wherein the organic tin catalyst is selected from one of dibutyltin dilaurate, stannous octoate, dibutyltin diacetate and dibutyltin dimaleate, and adding 6 parts of organic acid catalyst, and the organic acid catalyst is selected from one of oleic acid, azelaic acid, adipic acid and citric acid; and adding 40 parts by weight of polyether polyol, reacting for 3 hours, uniformly stirring in the reaction process, cooling to room temperature, filling, sealing and storing to obtain the component B. Mixing the following components in a weight ratio of 100: 100, uniformly mixing the component A and the component B, injecting the mixture into a coral silica gel mold, vacuumizing, defoaming, standing and curing, opening the mold after 24 hours, and taking out a finished product.
Example four:
50 parts by weight of a polyether polyol having a hydroxyl equivalent weight of 2000 and a functionality of 4; adding 20 parts by weight of diisocyanate, wherein the functionality of the diisocyanate is 2.2; reacting for 3.5 hours at the temperature of 75 ℃, stirring continuously at the speed of 100 r/min to react to generate a prepolymer, cooling the prepolymer to room temperature, filling, sealing and storing to obtain the component A.
2 parts of chain extender by weight, wherein the chain extender is one of 1, 4-butanediol, ethylene glycol, 1, 6-hexanediol, diethyl toluene diamine and 4,4 '-diamino-3, 3' -dichlorodiphenylmethane, the selected chain extender is melted at 125 ℃, and then 2 parts of tertiary amine catalyst is added, and the tertiary amine catalyst is one of triethanolamine, triethylene diamine, N-dimethyl cyclohexylamine and dimethyl ethanolamine; adding 0.5 part of organic tin catalyst, wherein the organic tin catalyst is selected from one of dibutyltin dilaurate, stannous octoate, dibutyltin diacetate and dibutyltin dimaleate, and adding 5 parts of organic acid catalyst, and the organic acid catalyst is selected from one of oleic acid, azelaic acid, adipic acid and citric acid; and adding 30 parts by weight of polyether polyol, reacting for 2.5 hours, uniformly stirring in the reaction process, cooling to room temperature, filling, sealing and storing to obtain the component B. Mixing the following components in a weight ratio of 100: and (3) uniformly mixing the component A and the component B of the 90, injecting the mixture into a coral silica gel mold, vacuumizing, defoaming, standing and curing, opening the mold after 24 hours, and taking out a finished product.
Example five:
80 parts by weight of a polyether polyol having a hydroxyl equivalent weight of 2000 and a functionality of 4; adding 50 parts by weight of diisocyanate, wherein the functionality of the diisocyanate is 2.2; reacting for 2.5 hours at the temperature of 85 ℃, stirring continuously at the speed of 100 r/min to react to generate a prepolymer, cooling the prepolymer to room temperature, filling, sealing and storing to obtain the component A.
10 parts by weight of chain extender, wherein the chain extender is one of 1, 4-butanediol, ethylene glycol, 1, 6-hexanediol, diethyl toluene diamine and 4,4 '-diamino-3, 3' -dichlorodiphenylmethane, the selected chain extender is melted at 110 ℃, and 5 parts of tertiary amine catalyst is added, and the tertiary amine catalyst is one of triethanolamine, triethylene diamine, N-dimethyl cyclohexylamine and dimethyl ethanolamine; adding 5 parts of organic tin catalyst, wherein the organic tin catalyst is selected from one of dibutyltin dilaurate, stannous octoate, dibutyltin diacetate and dibutyltin dimaleate, and adding 10 parts of organic acid catalyst, and the organic acid catalyst is selected from one of oleic acid, azelaic acid, adipic acid and citric acid; and adding 50 parts by weight of polyether polyol, reacting for 3.5 hours, uniformly stirring in the reaction process, cooling to room temperature, filling, sealing and storing to obtain the component B. Mixing the following components in a weight ratio of 100: and (3) uniformly mixing the component A and the component B of the 110, injecting the mixture into a coral silica gel mold, vacuumizing, defoaming, standing and curing, opening the mold after 24 hours, and taking out a finished product.
Example six:
65 parts by weight of a polyether polyol having a hydroxyl equivalent weight of 2000 and a functionality of 4; adding 35 parts by weight of diisocyanate, the functionality of which is 2.2; reacting for 3 hours at the temperature of 80 ℃, continuously stirring at the speed of 100 r/min to generate a prepolymer, cooling the prepolymer to room temperature, filling, sealing and storing to obtain the component A.
6 parts by weight of a chain extender, wherein the chain extender is one of 1, 4-butanediol, ethylene glycol, 1, 6-hexanediol, diethyl toluenediamine and 4,4 '-diamino-3, 3' -dichlorodiphenylmethane, 4 parts of a tertiary amine catalyst is added after the selected chain extender is melted at 118 ℃, and the tertiary amine catalyst is one of triethanolamine, triethylenediamine, N-dimethylcyclohexylamine and dimethylethanolamine; adding 3 parts of organic tin catalyst, wherein the organic tin catalyst is selected from one of dibutyltin dilaurate, stannous octoate, dibutyltin diacetate and dibutyltin dimaleate, and adding 6 parts of organic acid catalyst, and the organic acid catalyst is selected from one of oleic acid, azelaic acid, adipic acid and citric acid; and adding 40 parts by weight of polyether polyol, reacting for 3 hours, uniformly stirring in the reaction process, cooling to room temperature, filling, sealing and storing to obtain the component B. Mixing the following components in a weight ratio of 100: 100, uniformly mixing the component A and the component B, injecting the mixture into a coral silica gel mold, vacuumizing, defoaming, standing and curing, opening the mold after 24 hours, and taking out a finished product.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A simulated coral, comprising: consists of two components of a component A and a component B,
the component A comprises 50-80 parts by weight of polyether polyol and 20-50 parts by weight of diisocyanate;
the component B comprises 30-50 parts by weight of polyether polyol, 2-10 parts by weight of chain extender and 7.5-20 parts by weight of catalyst.
2. The simulated coral of claim 1, wherein: the hydroxyl equivalent weight of the polyether polyol is 300-2000, and the functionality of the polyether polyol is 2-4; the polyether polyol is one or more of polyethylene glycol ether, polypropylene glycol ether, polypentaerythritol ether, polytetrahydrofuran ether glycol and polycaprolactone glycol; or one or more of the above-mentioned substances, and then selecting one or more of the above-mentioned copolymers; or the polyether polyol is selected from low-unsaturation polyether, hydroxyl-terminated polybutadiene, and a semi-prepolymer of hydroxyl-terminated polyol and isocyanate.
3. The simulated coral of claim 1, wherein: the functionality of the diisocyanate is between 2.0 and 2.7, preferably the functionality is between 2.0 and 2.2; the diisocyanate is one or a mixture of more of 2, 6-toluene diisocyanate, 4 '-diphenylmethane diisocyanate, carbodiimide-uretonimine modified 4,4' -diphenylmethane diisocyanate, 2, 4 '-diphenylmethane diisocyanate, 4' -dicyclohexylmethane diisocyanate and isophorone diisocyanate.
4. The simulated coral of claim 1, wherein: the chain extender is selected from one or more of 1, 4-butanediol, ethylene glycol, 1, 6-hexanediol, diethyl toluene diamine and 4,4 '-diamino-3, 3' -dichlorodiphenylmethane.
5. The simulated coral of claim 1, wherein: the catalyst comprises 2-10 parts by weight of tertiary amine catalyst, 0.5-5 parts by weight of organic tin catalyst and 5-15 parts by weight of organic acid catalyst.
6. The simulated coral of claim 5, wherein: the tertiary amine catalyst is selected from one or more of triethanolamine, triethylene diamine, N-dimethyl cyclohexylamine and dimethyl ethanolamine; the organic tin catalyst is selected from one or more of dibutyltin dilaurate, stannous octoate, dibutyltin diacetate and dibutyltin dimaleate; the organic acid catalyst is selected from one or more of oleic acid, azelaic acid, adipic acid and citric acid.
7. A method for preparing artificial coral according to any one of claims 1 to 6, wherein: the method comprises the following steps: step one, preparing a component A, adding diisocyanate into polyether polyol, reacting for 2.5-3.5 hours at the temperature of 80 +/-5 ℃, continuously stirring at the speed of 100 rpm, reacting to generate a prepolymer, cooling the prepolymer to room temperature, filling, sealing and storing in a sealed manner; preparing a component B, heating the chain extender to 110-125 ℃ for melting, adding the catalyst and the polyether polyol for reacting for 2.5-3.5 hours, uniformly stirring in the reaction process, cooling to room temperature, filling, sealing and storing; step three, mixing the following components in percentage by weight of 100: 90-100: and (3) uniformly mixing the component A and the component B of the 110, injecting the mixture into a silica gel mold, vacuumizing, defoaming, standing and curing, opening the mold after 24 hours, and taking out a finished product.
CN202110778891.3A 2021-07-09 2021-07-09 Simulated coral and preparation method thereof Pending CN113717340A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009129944A1 (en) * 2008-04-23 2009-10-29 Bayer Materialscience Ag Polyurethane elastomers, the method for preparing the same and the use thereof
CN102558496A (en) * 2011-12-23 2012-07-11 山东东大一诺威聚氨酯有限公司 Room temperature solidification polyurethane elastomer combination
CN109438646A (en) * 2018-10-29 2019-03-08 中海油能源发展股份有限公司 Polyurethane elastomeric compositions, polyurethane elastomer and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009129944A1 (en) * 2008-04-23 2009-10-29 Bayer Materialscience Ag Polyurethane elastomers, the method for preparing the same and the use thereof
CN102558496A (en) * 2011-12-23 2012-07-11 山东东大一诺威聚氨酯有限公司 Room temperature solidification polyurethane elastomer combination
CN109438646A (en) * 2018-10-29 2019-03-08 中海油能源发展股份有限公司 Polyurethane elastomeric compositions, polyurethane elastomer and preparation method thereof

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