CN114230751A - Hard foam polyurethane material for head portrait and preparation method thereof - Google Patents
Hard foam polyurethane material for head portrait and preparation method thereof Download PDFInfo
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- CN114230751A CN114230751A CN202111444414.XA CN202111444414A CN114230751A CN 114230751 A CN114230751 A CN 114230751A CN 202111444414 A CN202111444414 A CN 202111444414A CN 114230751 A CN114230751 A CN 114230751A
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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
- C08G18/28—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
- C08G18/6696—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38
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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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
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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
- C08G18/28—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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more polyetherpolyols having at least three hydroxy groups
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
- C08J2203/184—Binary blends of expanding agents of chemical foaming agent and physical blowing agent, e.g. azodicarbonamide and fluorocarbon
-
- 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
- C08J2205/00—Foams characterised by their properties
- C08J2205/10—Rigid foams
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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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the technical field of polyurethane, and particularly relates to a rigid foam polyurethane material for a head portrait and a preparation method thereof. The hard foam polyurethane material for the head portrait is prepared from the following components in percentage by weight of 1: 0.9-1.1 parts of A component and B component, wherein the B component is polymeric diphenylmethane diisocyanate, and the A component comprises, by weight, 50-70 parts of polyether polyol A, 10-30 parts of polyether polyol B, 10-30 parts of polyether polyol C, 4-6 parts of an auxiliary agent, 1-1.1 parts of a chemical foaming agent, 11-13 parts of a physical foaming agent, 1.0-2.0 parts of a catalyst and 1.0-3.0 parts of a foam stabilizer. The hard foam polyurethane foam material is specially applied to filling the interior of a head portrait, has strong bonding force with a reverse mold after being formed, high strength and good toughness, and can not crack and shrink; the invention also provides a simple and easy manufacturing method.
Description
Technical Field
The invention belongs to the technical field of polyurethane, and particularly relates to a rigid foam polyurethane material for a head portrait and a preparation method thereof.
Background
As a heat insulation material, the polyurethane is widely used in heat insulation projects such as household appliances, pipelines, solar energy, building walls and the like, and can also be used as a filling material due to low cost. The polyurethane head portrait is applied to displaying of a wig sleeve, the wig sleeve is woven by artificial chemical fiber, the wig sleeve is widely applied to the fields of movie and TV shows, beauty and make-up and the like, and the demand of the head portrait is also generated. However, in the conventional polyurethane foam, the interior of the head portrait may be under-filled or air-filled during molding, and a core may be fried due to heat accumulation in the interior, which may cause shrinkage after a long time, thereby affecting the appearance.
The patent CN201010130639.3 provides a teaching head filling special environment-friendly polyurethane hard foam combined material, which consists of a component A and a component B, wherein the component A consists of a plurality of polyether polyols, a foam stabilizer, water, a foaming agent and a catalyst; the component B is polymeric diphenylmethane diisocyanate. When in use, A, B components are mixed according to the weight ratio of A to B of 100 to (100-105) to prepare the special rigid polyurethane foam for filling the teaching head. But the bonding between the combined material and the reverse mold is poor, and the phenomena of bulging and peeling can be generated between the filling material and the reverse mold, so that the using effect of the teaching head is influenced.
The patent CN201711208167.7 provides an environment-friendly polyurethane semi-rigid foam material for filling teaching heads, wherein the semi-rigid foam material consists of a component A and a component B in percentage by mass; the component A comprises: 10-40% of polyether polyol A, 10-60% of polyether polyol B, 3-15% of polyether polyol C, 10-30% of solid reinforcing agent, 0.3-2% of foam stabilizer, 3-15% of water and 0.1-5% of catalyst; and B component: polymeric diphenylmethane diisocyanate. The filling composite material is a semi-hard foam material, and the used raw materials have high content of soft foam polyether and water and poor strength.
Disclosure of Invention
The technical problem solved by the invention is as follows: the hard foam polyurethane foam material has the advantages of low cost, strong bonding force with a reverse mold after molding, high strength, good toughness and no cracking or shrinkage, and is specially applied to filling the interior of a head portrait; the invention also provides a simple and easy manufacturing method.
The invention relates to a rigid foam polyurethane material for a head portrait, which is prepared from the following components in parts by weight of 1: 0.9-1.1 of component A and component B, wherein the component B is polymeric diphenylmethane diisocyanate, and the component A is prepared from the following raw materials in parts by weight:
wherein the total weight of the polyether polyol A, the polyether polyol B and the polyether polyol C is 100 parts;
the polyether polyol A is polyether polyol with the functionality of 5-5.5 and the hydroxyl value of 360-390mgKOH/g, preferably R5118G produced by Shandong-Nonwei new material company Limited;
the polyether polyol B is polyether polyol with the functionality of 5.5-6 and the hydroxyl value of 450-470mgKOH/g, preferably R6207 produced by Shandong Nonwei new material company Limited;
the polyether polyol C is polyether polyol with the functionality of 3 and the hydroxyl value of 160-170mgKOH/g, and preferably C310 produced by Shandong-Nowey new material Co.
Wherein R5118G is oil-containing polyether, has higher functionality and lower cost, and can reduce the cost on the basis of ensuring the performance of the product when used as main polyether; r6207 is refined polyether, has high hydroxyl value and viscosity, and can effectively improve foam strength and prevent shrinkage; the C310 functionality is lower, the hydroxyl value viscosity is lower, the toughness of the foam can be improved, and the viscosity and the reaction temperature are reduced; the 3 kinds of polyether are matched, so that the strength of foam can be effectively guaranteed, products are prevented from shrinking, the product cost is reduced, and the market competitiveness is improved.
The auxiliary agent is preferably castor oil and is used for greatly improving the adhesive force between the foam and the reverse mould.
The physical blowing agent is preferably Isopentane (IP) and the chemical blowing agent is water. The isopentane and the water are used as foaming agents, the isopentane is low in cost, the viscosity is lower compared with a full-water system, the filling of the corner of the head portrait is more sufficient, and meanwhile, the size change rate of the foam can be improved.
The foam stabilizer is preferably M168, produced by Meisside Chemicals of Jiangsu, Ltd. The foam stabilizer M168 can control the closed cell rate of foam, and can effectively avoid the cracking and the subsequent shrinkage of a fried core caused by heat accumulation.
The catalyst is one or more of N, N-dimethylcyclohexylamine (PC-8), N-dimethylcyclobenzylamine or triethylenediamine (A33). The catalyst adopts PC-8 and a small amount of A-33, and the reaction speed can be controlled.
The polymeric diphenylmethane diisocyanate is preferably PM200 from Nicotiana Vanhua polyurethane, Inc. or M20S from Pasteur.
The preparation method of the hard foam polyurethane material for the head portrait comprises the following steps:
(1) adding polyether polyol A, polyether polyol B and polyether polyol C into a stirring kettle in proportion, uniformly stirring, sequentially adding a physical foaming agent, a chemical foaming agent, a catalyst, an auxiliary agent and a foam stabilizer into the stirring kettle in proportion, uniformly stirring, and preparing the component A;
(2) mixing the prepared component A and component B in a proportion of 1: 0.9-1.1, and reacting to obtain the rigid foam polyurethane material for the head portrait.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the auxiliary agent castor oil and the open-cell silicone oil M168 are used, three polyether polyols which are independently developed and produced are used as main bodies, and the three polyether polyols are matched with the catalyst for use.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the practice of the invention. The following examples and comparative examples all use commercially available starting materials, the properties of which are tested according to the following standards/methods: q/0305INOV 001-2021: detection standards of composite polyether products of Shandong-Nowei New Material Co., Ltd; GB T8813-: determination of the compressibility of rigid foams.
The adhesive property test method is as follows:
preparing a regular metal plate, dividing the regular metal plate into two areas, pouring the combined materials to be compared into the two areas on the plate respectively after mixing and stirring, waiting for free foaming, taking off the foam by hands after 60 minutes, and observing the residual quantity of the polyurethane foam on the metal plate.
Examples 1 to 5
The second component of examples 1 to 5 was PM200 manufactured by Tantawa polyurethane GmbH, and the raw material composition and product performance test results of the first component are shown in Table 1, wherein the raw material amount of the first component is in parts by weight.
The preparation method of the product comprises the following steps:
(1) sequentially adding all the raw materials of the component A into a stirring kettle, and uniformly stirring to finish the preparation of the component A;
(2) and uniformly stirring the prepared component A and the component B according to the weight ratio of 1:1, and reacting to obtain the rigid foam polyurethane material for the head portrait.
Table 1 raw material compositions and product performance test results for examples 1-5
Comparative example 1
This comparative example differs from example 1 only in that the adjuvant castor oil is not added to the a component.
Comparative example 2
This comparative example differs from example 1 only in that foam stabilizer M168 was replaced with an equal mass of foam stabilizer L6950.
Comparative example 3
This comparative example differs from example 1 only in that polyether polyol R6207 was replaced by an equal mass of polyether polyol R5118G, i.e. the a component was formulated using only two polyether polyols.
The results of the product performance tests of comparative examples 1-3 are shown in table 2.
TABLE 2 product Performance test results for comparative examples 1-3
Claims (8)
1. A rigid foam polyurethane foam filling material for a head portrait, characterized in that: the weight ratio of 1: 0.9-1.1 of component A and component B, wherein the component B is polymeric diphenylmethane diisocyanate, and the component A is prepared from the following raw materials in parts by weight:
wherein the total weight of the polyether polyol A, the polyether polyol B and the polyether polyol C is 100 parts;
the polyether polyol A is polyether polyol with the functionality of 5-5.5 and the hydroxyl value of 360-390 mgKOH/g;
the polyether polyol B is polyether polyol with the functionality of 5.5-6 and the hydroxyl value of 450-470 mgKOH/g;
the polyether polyol C is polyether polyol with the functionality of 3 and the hydroxyl value of 160-170 mgKOH/g.
2. The rigid foam urethane foam filling material for a head portrait according to claim 1, characterized in that: polyether polyol a is R5118G, polyether polyol B is R6207, and polyether polyol C is C310.
3. The rigid foam urethane foam filling material for a head portrait according to claim 1, characterized in that: the auxiliary agent is castor oil.
4. The rigid foam urethane foam filling material for a head portrait according to claim 1, characterized in that: the physical blowing agent is isopentane.
5. The rigid foam urethane foam filling material for a head portrait according to claim 1, characterized in that: the chemical blowing agent is water.
6. The rigid foam urethane foam filling material for a head portrait according to claim 1, characterized in that: the catalyst is one or more of N, N-dimethylcyclohexylamine, N-dimethylbenzylamine or triethylenediamine.
7. The rigid foam urethane foam filling material for a head portrait according to claim 1, characterized in that: the foam stabilizer was M168.
8. A method for preparing a rigid foam urethane filling material for a head portrait according to any one of claims 1 to 7, comprising the steps of:
(1) adding polyether polyol A, polyether polyol B and polyether polyol C into a stirring kettle in proportion, stirring, sequentially adding a chemical foaming agent, a catalyst, an auxiliary agent and a foam stabilizer into the stirring kettle in proportion, and stirring to complete the preparation of the component A;
(2) mixing the prepared component A and component B in a proportion of 1: 0.9-1.1, and reacting to obtain the rigid foam polyurethane filling material for the head portrait.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111444414.XA CN114230751A (en) | 2021-11-30 | 2021-11-30 | Hard foam polyurethane material for head portrait and preparation method thereof |
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| CN202111444414.XA CN114230751A (en) | 2021-11-30 | 2021-11-30 | Hard foam polyurethane material for head portrait and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853974A (en) * | 2022-06-20 | 2022-08-05 | 河北亚东化工集团有限公司 | Polyurethane combined polyether for metal carving board and preparation method and application thereof |
| CN117467113A (en) * | 2023-12-28 | 2024-01-30 | 山东一诺威新材料有限公司 | Polyurethane material for foam filled insulating tube and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853974A (en) * | 2022-06-20 | 2022-08-05 | 河北亚东化工集团有限公司 | Polyurethane combined polyether for metal carving board and preparation method and application thereof |
| CN117467113A (en) * | 2023-12-28 | 2024-01-30 | 山东一诺威新材料有限公司 | Polyurethane material for foam filled insulating tube and preparation method thereof |
| CN117467113B (en) * | 2023-12-28 | 2024-05-10 | 山东一诺威新材料有限公司 | Polyurethane material for foam filled insulating tube and preparation method thereof |
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