CN111690112A - Polyurethane sponge containing plant components and production method thereof - Google Patents
Polyurethane sponge containing plant components and production method thereof Download PDFInfo
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- CN111690112A CN111690112A CN202010458762.1A CN202010458762A CN111690112A CN 111690112 A CN111690112 A CN 111690112A CN 202010458762 A CN202010458762 A CN 202010458762A CN 111690112 A CN111690112 A CN 111690112A
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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
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6484—Polysaccharides and derivatives thereof
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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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4081—Mixtures of compounds of group C08G18/64 with other macromolecular compounds
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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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
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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
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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
- 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
- C08J9/143—Halogen containing compounds
- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
- C08J9/145—Halogen containing compounds containing carbon, halogen and hydrogen only only chlorine as halogen atoms
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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
- C08G2101/00—Manufacture of cellular products
-
- 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
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
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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
- C08J2375/06—Polyurethanes from polyesters
-
- 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
- C08J2375/08—Polyurethanes from polyethers
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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)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention provides a polyurethane sponge containing plant components and a production method thereof, wherein the polyurethane sponge comprises the following components in parts by weight: 60-100 parts of polyether polyol; 0-40 parts of polymer polyol; 0-40 parts of polyester polyol; 0-60 parts of polysaccharide; 0-3 parts of water; 0.5-2 parts of silicone oil; 0.2-2 of catalyst; 0.3-2 parts of stabilizer; 0-15 parts of physical foaming agent; 0-2 parts of cross-linking agent. The invention creatively replaces the water in the traditional polyurethane sponge formula with polysaccharide, and obtains the polyurethane sponge containing 10-40% of plant components through synergistic compounding of the components. Meanwhile, the raw material polysaccharide has wide sources, can provide sufficient raw material guarantee for the large-scale production of the sponge, does not use water in the production, protects water resources to a certain extent, and ensures the production stability.
Description
Technical Field
The invention belongs to the technical field of sponge production and processing, and particularly relates to a polyurethane sponge containing plant components and a production method thereof.
Background
Polyurethane sponges, all known as polyurethane sponges, were first synthesized by bayer in the united states in 1937 of the last century and were first used in space vehicles in the united states. After entering the civil field, the utility model is applied to a plurality of fields of the people's countryside, such as mattress sofas, high-speed railway seats, white household appliance fillings and the like, and high-end female bras, medical use and the like.
Polyurethane sponges are classified into polyester types and polyether types, and are obtained by reacting polyester polyol or polyether polyol with isocyanate respectively. The two types of sponges are characterized by each and are used in different fields. However, the raw materials are those extracted from petroleum, whether polyester type or polyether type. With the increasing awareness of environmental protection, various countries in the world have raised environmental requirements for polyurethane sponges, and it is desirable or required that the sponges can be applied to renewable raw materials, such as plant-based renewable raw materials.
This is a new challenge for the skilled person. The technology pioneers in Japan well and the like apply soybean oil polyether and castor oil polyether to the foaming production of polyurethane sponge, and certain achievements are obtained; some sponge enterprises in China also have many cases. Then, the product has room for improvement, such as odor problems of the product, and the like. More importantly, the soybean oil polyether and the castor oil polyether are industrial raw materials of the minority so far, have no large-scale production and are high in price, so that the polyurethane sponge product using the polyether is greatly limited.
In addition, in the traditional production of polyurethane sponge, water and isocyanate react to release carbon dioxide as a foaming gas source, and certain water resources are consumed to a certain extent. Variations in water quality can also affect the quality of the final product.
Disclosure of Invention
In view of the above, the invention provides a polyurethane sponge with excellent environmental tolerance, and the polyurethane sponge is prepared by creatively replacing the water in the traditional polyurethane sponge formula with polysaccharide and synergistically compounding the components to obtain the polyurethane sponge containing 10-40% of plant components.
The technical scheme of the invention is as follows:
a polyurethane sponge containing plant components is characterized by comprising the following components in parts by weight:
60-100 parts of polyether polyol;
0-40 parts of polymer polyol;
0-40 parts of polyester polyol;
20-60 parts of polysaccharide;
0-3 parts of water;
0.5-2 parts of silicone oil;
0.2-2 of catalyst;
0.3-2 parts of stabilizer;
0-15 parts of physical foaming agent;
0-2 parts of cross-linking agent.
Further, the polyurethane sponge containing the plant components comprises the following components in parts by weight:
80-100 parts of polyether polyol;
20-40 parts of polymer polyol;
10-20 parts of polyester polyol;
40-60 parts of polysaccharide;
0-2 parts of water;
0.6-1.5 of silicone oil;
0.4-2 of catalyst;
1-2 parts of a stabilizer;
5-15 parts of physical foaming agent;
0.8-2 parts of cross-linking agent.
Furthermore, the polyurethane sponge containing the plant components comprises the following components in parts by weight:
a polyether polyol 70;
a polymer polyol 20;
a polyether polyol 10;
a polysaccharide 45;
0 part of water;
1 part of silicone oil;
1.5 of catalyst;
1.5 of a stabilizing agent;
a physical blowing agent 8;
and (3) a crosslinking agent 1.
In the invention, polysaccharide (polysaccharide) is mainly used for replacing water, and the polyurethane sponge is obtained by adding the original catalyst of the invention and combining polyether polyol or polyester polyol and isocyanate for reaction. Wherein, the polysaccharide of the invention reacts with isocyanate to release carbon dioxide to play a role in blowing bubbles.
According to the characteristics of the used polysaccharide such as hydroxyl content and the like, isocyanate with different dosage is proportioned, and the characteristics of the final sponge product such as density, hardness and the like can be controlled. In the invention, the use amount of the polysaccharide can be controlled to be very small, and 10-100 parts of polysaccharide compound can be prepared per 100 parts of polyol by weight. If the requirements of organizations and customers on the content of the plant-based compounds in the product are required to be met, the ratio of the polysaccharide to the polyol in the formula is controlled to be more than 2: 5.
Further, the polysaccharide includes starch, cellulose, chitin, glycogen, inulin, agar, heteropolysaccharide, hyaluronic acid, chondroitin sulfate, and at least one of the above polysaccharide derivatives, and any one of the derivatives thereof, but is not limited thereto.
Through a large number of creative tests of the inventor of the application, the isocyanate can react with polysaccharide (polysaccharide) from plants to release carbon dioxide in addition to react with water to generate carbon dioxide, and water is not required to participate. Further, the inventors of the present invention have found that a polysaccharide itself has a large number of hydroxyl groups, and that these hydroxyl groups are adjacent to each other, and that an effect similar to water molecules is produced.
Polysaccharides (polysaccharides) are formed by condensation and dehydration of a plurality of monosaccharide molecules, and are carbohydrate substances with complex and huge molecular structures. Carbohydrates and their derivatives, which meet the concept of high molecular weight compounds, are called polysaccharides. Polysaccharides are also important in their very wide distribution in nature. Examples of the monosaccharide include glucose, mannan, and galactan, and examples of the monosaccharide include two or more types of monosaccharides, and examples of the heteropolysaccharide (heteropolysaccharide) include glucosamine glucan having an amino sugar.
Further, the polyol comprises any one of a polyester polyol, a polyether polyol, a polyester polyol derivative, and a polyether polyol derivative, and the polyol comprises a modified product further comprising the above components.
Further, the polyether polyol has a hydroxyl value of 30-60 mg KOH/g and a molecular weight of 2000-7000.
The hydroxyl value of the polyester polyol is 40-400 mg KOH/g, and the molecular weight is 200-6000.
Further, the catalyst comprises an organic metal catalyst and an amine catalyst; wherein, at least one of the following compounds is contained: triethylamine, 1, 4-diazabicyclo [2.2.2] octane, pentamethyldiethylenetriamine, bis (dimethylaminoethyl) ether, pentamethyldipropylenetriamine, N-dimethylcyclohexylamine, 1, 8-diazabicycloundec-7-ene, N-methyl-N- (N, N-dimethylaminoethyl) ethanolamine, N-dimethylaminoethyl-N-methylaminoethanol, cis-2, 6-dimethylpiperazine, 2,4, 6-tris (dimethylaminomethyl) phenol, zirconium acetylacetonate, organotin and modifications thereof, organobismuth and modifications thereof.
Further, the organic tin and the modified substance thereof comprise stannous octoate, dibutyltin dilaurate and the like.
Further, the stabilizer comprises a hindered phenol antioxidant and a hindered amine light stabilizer. The stabilizer comprises one of the following commercial agents: chinox TP-35, Chisorb B26 2636H, K383, Tinuvin B75, PUR68, RFCH 800.
Further, the physical blowing agent comprises at least one of the following compounds: dichloromethane, dichloroethane, liquid carbon dioxide, pentane, hydro chlorofluorocarbons.
Further, the crosslinking agent comprises at least one of the following compounds: ethylene glycol, dipropylene glycol, glycerol, diethylene glycol, triethylene glycol, 1, 4-butanediol, triethanolamine, diethanolamine, ethylenediamine.
Further, the silicone oil comprises at least one commercial agent of the following silicon series: l-580, L-608, L-626, L-627, SZ-580, DC-200, DC-5043, BF-2370, B-4900, B-8002 and LK-221.
A production method of a polyurethane sponge containing plant components comprises the following steps:
s1, sieving polysaccharide powder through a sieve with more than 200 meshes to obtain fine powder;
s2, mixing the fine powder with polyhydric alcohol according to a formula ratio, and grinding and fully mixing the fine powder and the polyhydric alcohol by a grinder;
s3, the mixed liquid is filled into a storage tank, is output to a high-speed mixing stirring head through a metering pump to be mixed with other raw materials at a high speed, and is evenly sprayed on a continuous foaming belt through a swinging head swinging left and right back and forth to inspire a sponge product.
The invention creatively replaces the water in the traditional polyurethane sponge formula with polysaccharide, and obtains the polyurethane sponge containing 10-40% of plant components through synergistic compounding of the components. The raw material polysaccharide has wide sources, such as cellulose, starch and derivatives thereof, are mature and industrially produced, and can provide sufficient raw material guarantee for the large-scale production of the sponge. Meanwhile, water can not be used in production, water resources are protected to a certain extent, and production stability is guaranteed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
A polyurethane sponge containing plant components comprises the following components in parts by weight:
80 parts of polyether polyol;
20 parts of polymer polyol;
45 parts of cassava starch;
39 parts of Toluene Diisocyanate (TDI);
5951 parts of silicone oil L;
0.2 part of amine catalyst;
0.3 part of stannous octoate;
3 parts of dichloromethane;
and 1 part of antioxidant.
The raw materials are mixed at a high speed and foamed to finally obtain the polyurethane sponge with the density of 36 kg/cube and the hardness of 50 ask.
Example 2
A polyurethane sponge containing plant components comprises the following components in parts by weight:
70 parts of polyether polyol;
30 parts of polymer polyol;
49 parts of hydroxyethyl starch;
33 parts of Toluene Diisocyanate (TDI);
1 part of water;
5951 parts of silicone oil L;
0.2 part of amine catalyst;
0.4 part of stannous octoate;
3 parts of dichloromethane;
and 1 part of antioxidant.
The raw materials are mixed at a high speed and foamed to finally obtain the polyurethane sponge with the density of 31 kg/cube and the hardness of 55 ask.
Example 3
A polyurethane sponge containing plant components comprises the following components in parts by weight:
60 parts of polyether polyol;
40 parts of polymer polyol;
51 parts of cellulose (20 ten thousand molecular weight);
37 parts of Toluene Diisocyanate (TDI);
silicone oil L5950.9 parts;
0.5 part of amine catalyst;
0.35 part of stannous octoate;
4 parts of dichloromethane;
1 part of butanediol;
and 1 part of antioxidant.
The raw materials are mixed at a high speed and foamed to finally obtain the polyurethane sponge with the density of 31 kg/cube and the hardness of 60 ask.
Example 4
A polyurethane sponge containing plant components comprises the following components in parts by weight:
100 parts of polyether polyol;
40 parts of chitin;
40 parts of Toluene Diisocyanate (TDI);
silicone oil L5801.1 parts;
0.6 part of amine catalyst;
0.5 part of stannous octoate;
1 part of antioxidant;
and mixing the raw materials at a high speed and foaming to obtain the polyurethane sponge with the density of 40 kg/cube and the hardness of 30 ask.
Example 5
A polyurethane sponge containing plant components comprises the following components in parts by weight:
80 parts of polyether polyol;
20 parts of polyester polyol;
53 parts of gelatinized starch;
35 parts of Toluene Diisocyanate (TDI);
silicone oil L5951.2 parts;
0.7 part of amine catalyst;
0.6 part of stannous octoate;
5 parts of dichloromethane;
1 part of antioxidant;
the raw materials are mixed at a high speed and foamed to finally obtain the polyurethane sponge with the density of 29 kg/cube and the hardness of 55 ask.
Example 6
A polyurethane sponge containing plant components comprises the following components in parts by weight:
70 parts of polyether polyol;
20 parts of slow rebound polyether;
49 parts of hydroxypropyl starch;
22 parts of Toluene Diisocyanate (TDI);
5221 parts of silicone oil;
0.5 part of amine catalyst;
0.4 part of stannous octoate;
2 parts of a pore forming agent;
1 part of antioxidant;
and mixing the raw materials at a high speed and foaming to finally obtain the slow-rebound polyurethane sponge with the density of 40 kilograms per cubic meter.
Example 7
A polyurethane sponge containing plant components comprises the following components in parts by weight:
100 parts of polyether polyol;
46 parts of modified cellulose (15 ten-thousand molecular weight);
37 parts of diphenylmethane diisocyanate (MDI);
5801 parts of silicone oil;
0.55 part of amine catalyst;
0.5 part of stannous octoate;
10 parts of dichloromethane;
1 part of antioxidant;
the raw materials are mixed at a high speed and foamed to finally obtain the polyurethane sponge with the density of 50 kilograms per cubic meter and the hardness of 30 ask.
Example 8
A method for preparing the plant component-containing polyurethane sponge of any one of embodiments 1 to 7, comprising the steps of:
s1, sieving polysaccharide powder through a sieve with more than 200 meshes to obtain fine powder;
s2, mixing the fine powder with polyhydric alcohol according to a formula ratio, and grinding and fully mixing the fine powder and the polyhydric alcohol by a grinder;
s3, the mixed liquid is filled into a storage tank, is output to a high-speed mixing stirring head through a metering pump to be mixed with other raw materials at a high speed, and is evenly sprayed on a continuous foaming belt through a swinging head swinging left and right back and forth to inspire a sponge product.
Performance test
The polyurethane sponges prepared according to the above examples 1 to 7 and prior art were tested by means of a yellowing test (James Heal method) and a light fastness test (ISO 105-B02 light fastness) for the following performance parameters:
| experimental group | Grade of resistance to yellowing | Light level resistance |
| Example 1 | 4 stage | 4 stage |
| Example 2 | 4 stage | 4 stage |
| Example 3 | 4 stage | 4 stage |
| Example 4 | Grade 3-4 | 4 stage |
| Example 5 | Grade 3-4 | Grade 3-4 |
| Example 6 | Grade 3-4 | Grade 3-4 |
| Example 7 | 4 stage | Grade 3-4 |
| Prior Art | 2-3 stages | 2-3 stages |
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. It should be noted that the technical features not described in detail in the present invention can be implemented by any prior art in the field.
Claims (10)
1. A polyurethane sponge containing plant components is characterized by comprising the following components in parts by weight:
60-100 parts of polyether polyol;
0-40 parts of polymer polyol;
0-40 parts of polyester polyol;
20-60 parts of polysaccharide;
0-3 parts of water;
0.5-2 parts of silicone oil;
0.2-2 of catalyst;
0.3-2 parts of stabilizer;
0-15 parts of physical foaming agent;
0-2 parts of cross-linking agent.
2. The plant component-containing polyurethane sponge as claimed in claim 1, which comprises the following components in parts by weight:
80-100 parts of polyether polyol;
20-40 parts of polymer polyol;
10-20 parts of polyester polyol;
40-60 parts of polysaccharide;
0-2 parts of water;
0.6-1.5 of silicone oil;
0.4-2 of catalyst;
1-2 parts of a stabilizer;
5-15 parts of physical foaming agent;
0.8-2 parts of cross-linking agent.
3. The plant component-containing polyurethane sponge as claimed in claim 1, which comprises the following components in parts by weight:
a polyether polyol 70;
a polymer polyol 20;
a polyester polyol 10;
a polysaccharide 45;
0 part of water;
1 part of silicone oil;
1.5 of catalyst;
1.5 of a stabilizing agent;
a physical blowing agent 8;
and (3) a crosslinking agent 1.
4. The plant component-containing polyurethane sponge according to any one of claims 1-3, wherein the polysaccharide comprises starch, cellulose, chitin, glycogen, inulin, agar, heteropolysaccharide, hyaluronic acid, chondroitin sulfate, and at least one of the above polysaccharide derivatives.
5. The plant component-containing polyurethane sponge as claimed in claim 1, wherein the polyether polyol has a hydroxyl value of 30-60 mg KOH/g and a molecular weight of 2000-7000.
6. The plant component-containing polyurethane sponge as claimed in claim 1, wherein the polyester polyol has a hydroxyl value of 40-400 mg KOH/g and a molecular weight of 200-6000.
7. The plant component-containing polyurethane sponge according to any one of claims 1 to 3, wherein the catalyst comprises an organometallic catalyst and an amine catalyst; wherein, at least one of the following compounds is contained: triethylamine, 1, 4-diazabicyclo [2.2.2] octane, pentamethyldiethylenetriamine, bis (dimethylaminoethyl) ether, pentamethyldipropylenetriamine, N-dimethylcyclohexylamine, 1, 8-diazabicycloundec-7-ene, N-methyl-N- (N, N-dimethylaminoethyl) ethanolamine, N-dimethylaminoethyl-N-methylaminoethanol, cis-2, 6-dimethylpiperazine, 2,4, 6-tris (dimethylaminomethyl) phenol, zirconium acetylacetonate, organotin and modifications thereof, organobismuth and modifications thereof.
8. The plant component-containing polyurethane sponge according to any one of claims 1 to 3, wherein the stabilizer comprises a hindered phenolic antioxidant and a hindered amine light stabilizer;
the physical blowing agent comprises at least one of the following compounds: dichloromethane, dichloroethane, liquid carbon dioxide, pentane, hydro chlorofluorocarbons.
9. The plant component-containing polyurethane sponge according to any one of claims 1 to 3, wherein the crosslinking agent comprises at least one of the following compounds: ethylene glycol, dipropylene glycol, glycerol, diethylene glycol, triethylene glycol, 1, 4-butanediol, triethanolamine, diethanolamine, ethylenediamine.
10. A method of producing a plant component-containing polyurethane sponge according to any one of claims 1 to 9, comprising the steps of:
s1, sieving polysaccharide powder through a sieve with more than 200 meshes to obtain fine powder;
s2, mixing the fine powder with polyhydric alcohol according to a formula ratio, and grinding and fully mixing the fine powder and the polyhydric alcohol by a grinder;
s3, the mixed liquid is filled into a storage tank, is output to a high-speed mixing stirring head through a metering pump to be mixed with other raw materials at a high speed, and is evenly sprayed on a continuous foaming belt through a swinging head swinging left and right back and forth to inspire a sponge product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010458762.1A CN111690112A (en) | 2020-05-27 | 2020-05-27 | Polyurethane sponge containing plant components and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010458762.1A CN111690112A (en) | 2020-05-27 | 2020-05-27 | Polyurethane sponge containing plant components and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111690112A true CN111690112A (en) | 2020-09-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010458762.1A Pending CN111690112A (en) | 2020-05-27 | 2020-05-27 | Polyurethane sponge containing plant components and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114716645A (en) * | 2021-04-07 | 2022-07-08 | 上海禺立电子科技有限公司 | Preparation method and application of positioning foam liner |
| CN115304744A (en) * | 2022-09-16 | 2022-11-08 | 中山成长鞋材有限公司 | Low-temperature hot-pressing underwear foam and preparation method thereof |
| CN117700673A (en) * | 2023-12-20 | 2024-03-15 | 南通顾乐仕生物材料科技有限公司 | Polyurethane sponge with recycled polyester as raw material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716645A (en) * | 2021-04-07 | 2022-07-08 | 上海禺立电子科技有限公司 | Preparation method and application of positioning foam liner |
| CN115304744A (en) * | 2022-09-16 | 2022-11-08 | 中山成长鞋材有限公司 | Low-temperature hot-pressing underwear foam and preparation method thereof |
| CN115304744B (en) * | 2022-09-16 | 2024-05-31 | 中山成长鞋材有限公司 | Low-temperature low-temperature hot-pressed underwear foam and preparation method thereof |
| CN117700673A (en) * | 2023-12-20 | 2024-03-15 | 南通顾乐仕生物材料科技有限公司 | Polyurethane sponge with recycled polyester as raw material |
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