CN114790271B - Sponge with excellent durability - Google Patents

Sponge with excellent durability Download PDF

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Publication number
CN114790271B
CN114790271B CN202110714514.3A CN202110714514A CN114790271B CN 114790271 B CN114790271 B CN 114790271B CN 202110714514 A CN202110714514 A CN 202110714514A CN 114790271 B CN114790271 B CN 114790271B
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flame retardant
sponge
parts
catalyst
coupling agent
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CN114790271A (en
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黄禄兵
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Guanghan Xinhong Sponge Co ltd
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Guanghan Xinhong Sponge Co ltd
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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
    • C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
    • 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
    • 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
    • C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • C08G18/632—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/02—Halogenated hydrocarbons
    • C08K5/03—Halogenated hydrocarbons aromatic, e.g. C6H5-CH2-Cl
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • 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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • 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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
    • 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
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

Abstract

The invention belongs to the technical field of foaming materials, and particularly relates to a sponge with excellent durability. The sponge with excellent durability is prepared from the following raw materials, by weight, at least 20-40 parts of isocyanate, 30-80 parts of polyether polyol, 10-35 parts of polymer polyol, 1-5 parts of flame retardant, 1-5 parts of compatilizer, 0.1-0.6 part of catalyst, 1-3 parts of foaming agent and 0.5-1 part of stabilizer. According to the technical scheme, the inventor adds a certain compatilizer to improve the compatibility among the whole substances in the sponge, so that the inorganic flame retardant and the sponge body can be well mixed and bonded, and further the uniformity, mechanical property and rebound resilience of the whole material of the sponge body are improved. And by controlling the addition of different flame retardants, the flame retardance of the sponge body is further improved, and the porosity, durability and air permeability of the sponge body are further improved.

Description

Sponge with excellent durability
Technical Field
The invention belongs to the technical field of foaming materials, and particularly relates to a sponge with excellent durability.
Background
The sponge is a porous material with excellent rebound resilience and good absorbency, and can be used for not only furniture articles but also cleaning articles. The conventional sponge is generally a foam formed by crosslinking polyol and isocyanate, so that the sponge has excellent air permeability. However, the flame retardant property of the sponge is poor, graphite is added into the sponge in the prior art, so that the flame retardant property of the sponge is improved, but the graphite is separated out of the sponge due to poor compatibility with the foaming body in the long-term use process, and the sponge has no long-term durability. The invention patent with the patent application number of 201911186877.3 discloses a high-performance clean sponge, wherein the preparation raw materials of the sponge comprise graphite, and the flame retardance and the antibacterial property of the sponge are improved by adding the graphite, but the graphite in the sponge is easy to separate out from the sponge in the long-term use process, and is separated from a sponge foaming body, so that the flame retardance of the sponge is reduced, and the long-term durability of the sponge is reduced.
Disclosure of Invention
In order to solve the technical problems, the first aspect of the invention provides a sponge with excellent durability, which is prepared from, by weight, at least 20-40 parts of isocyanate, 30-80 parts of polyether polyol, 10-35 parts of polymer polyol, 1-5 parts of flame retardant, 1-5 parts of compatilizer, 0.1-0.6 part of catalyst, 1-3 parts of foaming agent and 0.5-1 part of stabilizer.
Preferably, the flame retardant is an organic flame retardant and/or an inorganic flame retardant.
Preferably, the organic flame retardant is at least one selected from the group consisting of silicone-based flame retardants, brominated flame retardants, phosphorus-based flame retardants, and nitrogen-based flame retardants.
Preferably, the inorganic flame retardant is at least one selected from graphite, antimony trioxide, magnesium hydroxide, aluminum hydroxide, melamine and zinc borate.
Preferably, the molecules of the compatilizer comprise at least one amino group.
Preferably, the catalyst is an amine catalyst and/or a tin catalyst.
Preferably, the amine catalyst is selected from at least one of N, N-dimethylcyclohexylamine, triethylenediamine, dimethylethanolamine, pentamethyldiethylenetriamine, and N, N-dimethylpiperazine.
Preferably, the tin catalyst is at least one selected from the group consisting of dibutyltin dilaurate, stannous octoate and dibutyltin diacetate.
Preferably, the foaming agent is at least one selected from the group consisting of amides, stearates and water.
Preferably, the stabilizer at least comprises a hindered amine light stabilizer.
The beneficial effects are that: according to the technical scheme, the inventor adds a certain compatilizer to improve the compatibility among the whole substances in the sponge, so that the inorganic flame retardant and the sponge body can be well mixed and bonded, and further the uniformity, mechanical property and rebound resilience of the whole material of the sponge body are improved. And by controlling the addition of different flame retardants, the flame retardance of the sponge body is further improved, and the porosity, durability and air permeability of the sponge body are further improved.
Detailed Description
For the purposes of the following detailed description, it is to be understood that the invention may assume various alternative variations and step sequences, except where expressly specified to the contrary. Furthermore, except in any operating examples, or where otherwise indicated, all numbers expressing, for example, quantities of ingredients used in the specification and claims are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties to be obtained by the present invention. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should at least be construed in light of the number of reported significant digits and by applying ordinary rounding techniques.
Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values for the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range description features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to include any and all subranges subsumed therein. For example, a specified range from "1 to 10" should be considered to include any and all subranges between the minimum value of 1 and the maximum value of 10. Exemplary subranges from 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, and the like.
In order to solve the technical problems, the first aspect of the invention provides a sponge with excellent durability, which is prepared from, by weight, at least 20-40 parts of isocyanate, 30-80 parts of polyether polyol, 10-35 parts of polymer polyol, 1-5 parts of flame retardant, 1-5 parts of compatilizer, 0.1-0.6 part of catalyst, 1-3 parts of foaming agent and 0.5-1 part of stabilizer.
As a preferred embodiment, the isocyanate is toluene diisocyanate.
As a preferred embodiment, the polyether polyol has a hydroxyl number of 54 to 58mg KOH/g.
As a preferred embodiment, the polymer polyol has a hydroxyl number of 33 to 37mg KOH/g.
As a preferred technical scheme, the flame retardant is an organic flame retardant and/or an inorganic flame retardant.
As a preferable technical scheme, the flame retardant is an organic flame retardant and an inorganic flame retardant, and the mass ratio of the organic flame retardant to the inorganic flame retardant is (1-2): 1.
as a preferable technical scheme, the organic flame retardant is at least one selected from an organosilicon flame retardant, a brominated flame retardant, a phosphorus flame retardant and a nitrogen flame retardant.
As a preferable technical scheme, the organic flame retardant is a mixture of an organosilicon flame retardant and a brominated flame retardant, and the mass ratio of the organosilicon flame retardant to the brominated flame retardant is (1-3): 1.
as a preferable technical scheme, the brominated flame retardant is decabromodiphenylethane.
As a preferable technical scheme, the inorganic flame retardant is at least one selected from graphite, antimony trioxide, magnesium hydroxide, aluminum hydroxide, melamine and zinc borate.
As a preferable technical scheme, the inorganic flame retardant is graphite, and the graphite is expanded graphite.
As a preferable technical scheme, the particle size of the expanded graphite is 0.5-1.5mm, and the expanded graphite is purchased from Qingdao Tiansheng graphite Co.
The inventor finds that the flame retardance of the sponge can be better improved by adding a certain organic flame retardant, and especially when the organic silicon flame retardant, the brominated flame retardant and the expanded graphite are added and mixed, the heat resistance, the flame retardance, the smoke suppression performance and the antibacterial performance of the sponge can be improved, and the rebound resilience and the durability of the sponge can also be improved. The inventor considers that possible reasons are that the organic silicon flame retardant has longer molecular chains, the silicon groups in the organic silicon flame retardant have better flexibility and can migrate to the surface of the sponge, a protective layer is formed on the outer layer of the sponge, and the expanded graphite can be prevented from migrating out of or separating from the sponge, and the molecular chains of the organic bromine flame retardant have a certain length, but are not easy to migrate to the outside of the sponge and can be dispersed in the middle of the sponge, and meanwhile, the migration or separation of the expanded graphite in the middle of the sponge is prevented, so that the uniformity, the stability and the flame retardance of the whole sponge are uniformly improved. However, when the organic flame retardant is too much, the porosity of the sponge is lowered, and the air permeability of the sponge is lowered.
As a preferable technical scheme, the molecule of the compatilizer at least comprises one amino group.
As a preferable technical scheme, the compatilizer is a mixture of a silane coupling agent and a phthalate coupling agent, and the mass ratio of the silane coupling agent to the phthalate coupling agent is (1-2): the silane coupling agent is 3-aminopropyl trimethoxy silane, and the phthalate is diisopropyl di (triethanolamine) titanate.
The inventor finds that the dispersibility and the compatibility of the expanded graphite in the sponge can be better improved by adding a certain compatilizer and treating the expanded graphite by the compatilizer, and the compatilizer contains amino groups with larger molecular acting force, so that the mechanical strength and the performances in all aspects of the sponge are improved.
As a preferable technical scheme, the catalyst is an amine catalyst and/or a tin catalyst.
As a preferred embodiment, the amine catalyst is at least one selected from the group consisting of N, N-dimethylcyclohexylamine, triethylenediamine, dimethylethanolamine, pentamethyldiethylenetriamine, and N, N-dimethylpiperazine.
As a preferable technical scheme, the tin catalyst is at least one selected from dibutyl tin dilaurate, stannous octoate and dibutyl tin diacetate.
As a preferred embodiment, the foaming agent is at least one selected from the group consisting of amides, stearates and water.
As a preferred technical scheme, the foaming agent is water.
As a preferable technical scheme, the stabilizer at least comprises hindered amine light stabilizer.
As the sponge polyurethane contains unsaturated bonds, the yellowing phenomenon is easy to occur under the action of ultraviolet light, and the long-term durability of the sponge is reduced, the inventor discovers that the anti-yellowing performance of the sponge can be better improved and the long-term durability of the sponge can be improved by adding a certain amount of hindered amine light stabilizer.
In addition, the raw materials used are commercially available unless otherwise indicated.
Examples
Example 1
The first aspect of the present embodiment provides a sponge having excellent durability, which is prepared from, by weight, 20 parts of isocyanate, 30 parts of polyether polyol, 10 parts of polymer polyol, 1 part of flame retardant, 1 part of compatibilizer, 0.1 part of catalyst, 1 part of foaming agent and 0.5 part of stabilizer.
The isocyanate is toluene diisocyanate, the hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, the hydroxyl value of the polymer polyol is 33-37mg KOH/g, CHE-3602, and the polymer polyol is purchased from Changhua chemical technology Co., ltd. The flame retardant is an organic flame retardant and an inorganic flame retardant, and the mass ratio of the organic flame retardant to the inorganic flame retardant is 2:1. the organic flame retardant is a mixture of an organic silicon flame retardant and a brominated flame retardant, and the mass ratio of the organic silicon flame retardant to the brominated flame retardant is 3:1, the brand of the organic silicon flame retardant is as follows: the bromine flame retardant is decabromodiphenyl ethane, which is the dorcorning FCA-117. The inorganic flame retardant is graphite, and the graphite is expanded graphite. The particle size of the expanded graphite is 0.5-1.5mm, and the expanded graphite is purchased from Qingdao Tiansheng graphite Co. The compatilizer is a mixture of a silane coupling agent and a phthalate coupling agent, and the mass ratio of the silane coupling agent to the phthalate coupling agent is 2:1, wherein the silane coupling agent is 3-aminopropyl trimethoxysilane, which is purchased from Nanjing LongTian-Gao chemical industry Co., ltd, and has the brand: KH-551. The phthalate is diisopropyl di (triethanolamine) titanate, purchased from Nanjing product Ning coupling agent Co. The catalyst is a mixture of an amine catalyst and a tin catalyst, and the mass ratio of the amine catalyst to the tin catalyst is 1:1, wherein the amine catalyst is triethylenediamine, the tin catalyst is dibutyl tin dilaurate, the foaming agent is water, the stabilizer is a hindered amine light stabilizer, and the hindered amine light stabilizer is UV3853.
Example 2
The first aspect of the present embodiment provides a sponge having excellent durability, which is prepared from, by weight, 30 parts of isocyanate, 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatibilizer, 0.3 part of catalyst, 2 parts of foaming agent and 0.75 part of stabilizer.
The isocyanate is toluene diisocyanate, the hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, the hydroxyl value of the polymer polyol is 33-37mg KOH/g, CHE-3602, and the polymer polyol is purchased from Changhua chemical technology Co., ltd. The flame retardant is an organic flame retardant and an inorganic flame retardant, and the mass ratio of the organic flame retardant to the inorganic flame retardant is 2:1. the organic flame retardant is a mixture of an organic silicon flame retardant and a brominated flame retardant, and the mass ratio of the organic silicon flame retardant to the brominated flame retardant is 3:1, the brand of the organic silicon flame retardant is as follows: the bromine flame retardant is decabromodiphenyl ethane, which is the dorcorning FCA-117. The inorganic flame retardant is graphite, and the graphite is expanded graphite. The particle size of the expanded graphite is 0.5-1.5mm, and the expanded graphite is purchased from Qingdao Tiansheng graphite Co. The compatilizer is a mixture of a silane coupling agent and a phthalate coupling agent, and the mass ratio of the silane coupling agent to the phthalate coupling agent is 2:1, wherein the silane coupling agent is 3-aminopropyl trimethoxysilane, which is purchased from Nanjing LongTian-Gao chemical industry Co., ltd, and has the brand: KH-551. The phthalate is diisopropyl di (triethanolamine) titanate, purchased from Nanjing product Ning coupling agent Co. The catalyst is a mixture of an amine catalyst and a tin catalyst, and the mass ratio of the amine catalyst to the tin catalyst is 1:1, wherein the amine catalyst is triethylenediamine, the tin catalyst is dibutyl tin dilaurate, the foaming agent is water, the stabilizer is a hindered amine light stabilizer, and the hindered amine light stabilizer is UV3853.
Example 3
The first aspect of the present embodiment provides a sponge having excellent durability, which is prepared from 40 parts by weight of isocyanate, 80 parts by weight of polyether polyol, 35 parts by weight of polymer polyol, 5 parts by weight of flame retardant, 5 parts by weight of compatibilizer, 0.6 part by weight of catalyst, 3 parts by weight of foaming agent and 1 part by weight of stabilizer.
The isocyanate is toluene diisocyanate, the hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, the hydroxyl value of the polymer polyol is 33-37mg KOH/g, CHE-3602, and the polymer polyol is purchased from Changhua chemical technology Co., ltd. The flame retardant is an organic flame retardant and an inorganic flame retardant, and the mass ratio of the organic flame retardant to the inorganic flame retardant is 2:1. the organic flame retardant is a mixture of an organic silicon flame retardant and a brominated flame retardant, and the mass ratio of the organic silicon flame retardant to the brominated flame retardant is 3:1, the brand of the organic silicon flame retardant is as follows: the bromine flame retardant is decabromodiphenyl ethane, which is the dorcorning FCA-117. The inorganic flame retardant is graphite, and the graphite is expanded graphite. The particle size of the expanded graphite is 0.5-1.5mm, and the expanded graphite is purchased from Qingdao Tiansheng graphite Co. The compatilizer is a mixture of a silane coupling agent and a phthalate coupling agent, and the mass ratio of the silane coupling agent to the phthalate coupling agent is 2:1, wherein the silane coupling agent is 3-aminopropyl trimethoxysilane, which is purchased from Nanjing LongTian-Gao chemical industry Co., ltd, and has the brand: KH-551. The phthalate is diisopropyl di (triethanolamine) titanate, purchased from Nanjing product Ning coupling agent Co. The catalyst is a mixture of an amine catalyst and a tin catalyst, and the mass ratio of the amine catalyst to the tin catalyst is 1:1, wherein the amine catalyst is triethylenediamine, the tin catalyst is dibutyl tin dilaurate, the foaming agent is water, the stabilizer is a hindered amine light stabilizer, and the hindered amine light stabilizer is UV3853.
Example 4
The first aspect of the present embodiment provides a sponge having excellent durability, which is prepared from, by weight, 30 parts of isocyanate, 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatibilizer, 0.3 part of catalyst, 2 parts of foaming agent and 0.75 part of stabilizer.
The isocyanate is toluene diisocyanate, the hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, the hydroxyl value of the polymer polyol is 33-37mg KOH/g, CHE-3602, and the polymer polyol is purchased from Changhua chemical technology Co., ltd. The flame retardant is an inorganic flame retardant, the inorganic flame retardant is graphite, and the graphite is expanded graphite. The particle size of the expanded graphite is 0.5-1.5mm, and the expanded graphite is purchased from Qingdao Tiansheng graphite Co. The compatilizer is a mixture of a silane coupling agent and a phthalate coupling agent, and the mass ratio of the silane coupling agent to the phthalate coupling agent is 2:1, wherein the silane coupling agent is 3-aminopropyl trimethoxysilane, which is purchased from Nanjing LongTian-Gao chemical industry Co., ltd, and has the brand: KH-551. The phthalate is diisopropyl di (triethanolamine) titanate, purchased from Nanjing product Ning coupling agent Co. The catalyst is a mixture of an amine catalyst and a tin catalyst, and the mass ratio of the amine catalyst to the tin catalyst is 1:1, wherein the amine catalyst is triethylenediamine, the tin catalyst is dibutyl tin dilaurate, the foaming agent is water, the stabilizer is a hindered amine light stabilizer, and the hindered amine light stabilizer is UV3853.
Example 5
The first aspect of the present embodiment provides a sponge having excellent durability, which is prepared from, by weight, 30 parts of isocyanate, 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatibilizer, 0.3 part of catalyst, 2 parts of foaming agent and 0.75 part of stabilizer.
The isocyanate is toluene diisocyanate, the hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, the hydroxyl value of the polymer polyol is 33-37mg KOH/g, CHE-3602, and the polymer polyol is purchased from Changhua chemical technology Co., ltd. The flame retardant is an organic flame retardant and an inorganic flame retardant, and the mass ratio of the organic flame retardant to the inorganic flame retardant is 2:1. the organic flame retardant is an organic silicon flame retardant, and the brand of the organic silicon flame retardant is as follows: takangning FCA-117. The inorganic flame retardant is graphite, and the graphite is expanded graphite. The particle size of the expanded graphite is 0.5-1.5mm, and the expanded graphite is purchased from Qingdao Tiansheng graphite Co. The compatilizer is a mixture of a silane coupling agent and a phthalate coupling agent, and the mass ratio of the silane coupling agent to the phthalate coupling agent is 2:1, wherein the silane coupling agent is 3-aminopropyl trimethoxysilane, which is purchased from Nanjing LongTian-Gao chemical industry Co., ltd, and has the brand: KH-551. The phthalate is diisopropyl di (triethanolamine) titanate, purchased from Nanjing product Ning coupling agent Co. The catalyst is a mixture of an amine catalyst and a tin catalyst, and the mass ratio of the amine catalyst to the tin catalyst is 1: the novel polyurethane foam plastic comprises a foam plastic, wherein the foam plastic is characterized in that the amine catalyst is triethylenediamine, the tin catalyst is dibutyl tin dilaurate, the foaming agent is water, the stabilizer at least comprises a hindered amine light stabilizer, the stabilizer is a hindered amine light stabilizer, and the hindered amine light stabilizer is UV3853.
Example 6
The first aspect of the present embodiment provides a sponge having excellent durability, which is prepared from, by weight, 30 parts of isocyanate, 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatibilizer, 0.3 part of catalyst, 2 parts of foaming agent and 0.75 part of stabilizer.
The isocyanate is toluene diisocyanate, the hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, the hydroxyl value of the polymer polyol is 33-37mg KOH/g, CHE-3602, and the polymer polyol is purchased from Changhua chemical technology Co., ltd. The flame retardant is an organic flame retardant and an inorganic flame retardant, and the mass ratio of the organic flame retardant to the inorganic flame retardant is 2:1. the organic flame retardant is a brominated flame retardant, and the brominated flame retardant is decabromodiphenylethane. The inorganic flame retardant is graphite, and the graphite is expanded graphite. The particle size of the expanded graphite is 0.5-1.5mm, and the expanded graphite is purchased from Qingdao Tiansheng graphite Co. The compatilizer is a mixture of a silane coupling agent and a phthalate coupling agent, and the mass ratio of the silane coupling agent to the phthalate coupling agent is 2:1, wherein the silane coupling agent is 3-aminopropyl trimethoxysilane, which is purchased from Nanjing LongTian-Gao chemical industry Co., ltd, and has the brand: KH-551. The phthalate is diisopropyl di (triethanolamine) titanate, purchased from Nanjing product Ning coupling agent Co. The catalyst is a mixture of an amine catalyst and a tin catalyst, and the mass ratio of the amine catalyst to the tin catalyst is 1:1, wherein the amine catalyst is triethylenediamine, the tin catalyst is dibutyl tin dilaurate, the foaming agent is water, the stabilizer is a hindered amine light stabilizer, and the hindered amine light stabilizer is UV3853.
Example 7
The first aspect of the present embodiment provides a sponge having excellent durability, which is prepared from, by weight, 30 parts of isocyanate, 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatibilizer, 0.3 part of catalyst, 2 parts of foaming agent and 0.75 part of stabilizer.
The isocyanate is toluene diisocyanate, the hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, the hydroxyl value of the polymer polyol is 33-37mg KOH/g, CHE-3602, and the polymer polyol is purchased from Changhua chemical technology Co., ltd. The flame retardant is an organic flame retardant and an inorganic flame retardant, and the mass ratio of the organic flame retardant to the inorganic flame retardant is 2:1. the organic flame retardant is a mixture of an organic silicon flame retardant and a brominated flame retardant, and the mass ratio of the organic silicon flame retardant to the brominated flame retardant is 3:1, the brand of the organic silicon flame retardant is as follows: the bromine flame retardant is decabromodiphenyl ethane, which is the dorcorning FCA-117. The inorganic flame retardant is graphite, and the graphite is expanded graphite. The particle size of the expanded graphite is 0.5-1.5mm, and the expanded graphite is purchased from Qingdao Tiansheng graphite Co. The compatilizer is a silane coupling agent, wherein the silane coupling agent is 3-aminopropyl trimethoxysilane, which is purchased from Nanjing LongTian latitude chemical industry Co., ltd, and has the brand: KH-551. The catalyst is a mixture of an amine catalyst and a tin catalyst, and the mass ratio of the amine catalyst to the tin catalyst is 1:1, wherein the amine catalyst is triethylenediamine, the tin catalyst is dibutyl tin dilaurate, the foaming agent is water, the stabilizer is a hindered amine light stabilizer, and the hindered amine light stabilizer is UV3853.
Example 8
The first aspect of the present embodiment provides a sponge having excellent durability, which is prepared from, by weight, 30 parts of isocyanate, 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatibilizer, 0.3 part of catalyst, 2 parts of foaming agent and 0.75 part of stabilizer.
The isocyanate is toluene diisocyanate, the hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, the hydroxyl value of the polymer polyol is 33-37mg KOH/g, CHE-3602, and the polymer polyol is purchased from Changhua chemical technology Co., ltd. The flame retardant is an organic flame retardant and an inorganic flame retardant, and the mass ratio of the organic flame retardant to the inorganic flame retardant is 2:1. the organic flame retardant is a mixture of an organic silicon flame retardant and a brominated flame retardant, and the mass ratio of the organic silicon flame retardant to the brominated flame retardant is 3:1, the brand of the organic silicon flame retardant is as follows: the bromine flame retardant is decabromodiphenyl ethane, which is the dorcorning FCA-117. The inorganic flame retardant is graphite, and the graphite is expanded graphite. The particle size of the expanded graphite is 0.5-1.5mm, and the expanded graphite is purchased from Qingdao Tiansheng graphite Co. The compatilizer is a phthalate ester coupling agent, and the phthalate ester is diisopropyl di (triethanolamine) titanate, which is purchased from Nanjing product Ning coupling agent Co. The catalyst is a mixture of an amine catalyst and a tin catalyst, and the mass ratio of the amine catalyst to the tin catalyst is 1:1, wherein the amine catalyst is triethylenediamine, the tin catalyst is dibutyl tin dilaurate, the foaming agent is water, the stabilizer is a hindered amine light stabilizer, and the hindered amine light stabilizer is UV3853.
Performance testing
Performance test 1
Porosity: according to the formulation in examples 1-8, a 100mL beaker was prepared in the same manner, water was injected into the beaker and the mass m 1 of water was weighed to 50mL, 1cm 3 (length, width, height were 1cm respectively) of the sponges in examples 1-11 was cut out, m s of the sponges in examples 1-11 was accurately weighed, the pieces of the sponges were clamped with clean forceps and immersed in water, sonicated for a period of time to allow the sponges to be in full contact with water, then the air bubbles in the pores of the sponges were removed to allow the water to fill in the pores of the sponges, then the beaker, the water and the mass m 2 of the sponges were weighed again after the initial scale was added, the water absorbed in the sponge was taken out with forceps, the water on the surface of the sponge was filtered out, the mass m 3 of the remaining water and the beaker was again weighed, the porosities of each sponge were calculated, and the average value was taken three times for each sponge measurement, and the porosities= (m 2-m 3-m s)/(m 1-m 3) ×100%.
Performance test II
Rebound resilience: sponges were prepared in the same manner as in the formulations of examples 1 to 8, and the sponges of examples 1 to 8 were tested for their rebound rate according to GB/T6670-2008 standard.
Performance test III
Flame retardancy: sponges were prepared in the same manner as in the formulations of examples 1 to 8, and the sponges of examples 1 to 8 were tested for flame retardancy with reference to the GB8624-2006 standard.
Performance test four
Durability: according to the formulations in examples 1 to 8, sponges were prepared in the same manner, and the same-sized sponges in examples 1 to 8 were repeatedly bent 100 times to observe whether particles, chips or other substances were removed, and if not, durability was recorded as acceptable, and if removed, durability was recorded as unacceptable.
Porosity (%) Rebound resilience (%) Combustion grade Durability of
Example 1 93 60 A Qualified product
Example 2 94 62 A Qualified product
Example 3 93 59 A Qualified product
Example 4 81 43 B Failure to pass
Example 5 89 50 B Failure to pass
Example 6 84 46 B Failure to pass
Example 7 80 41 B Failure to pass
Example 8 79 37 B Failure to pass
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to equivalent embodiments without departing from the technical content of the present invention, and any simple modification, equivalent changes and alterations to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims (5)

1. The sponge with excellent durability is characterized in that the sponge comprises, by weight, at least 20-40 parts of isocyanate, 30-80 parts of polyether polyol, 10-35 parts of polymer polyol, 1-5 parts of flame retardant, 1-5 parts of compatilizer, 0.1-0.6 part of catalyst, 1-3 parts of foaming agent and 0.5-1 part of stabilizer;
the hydroxyl value of the polyether polyol is 54-58mg KOH/g;
the hydroxyl value of the polymer polyol is 33-37mg KOH/g;
the flame retardant is an organic flame retardant and an inorganic flame retardant, and the mass ratio is (1-2): 1, a step of;
the organic flame retardant is a mixture of an organosilicon flame retardant and a brominated flame retardant, and the mass ratio of the organosilicon flame retardant to the brominated flame retardant is (1-3): 1, the brominated flame retardant is decabromodiphenyl ethane;
the inorganic flame retardant is expanded graphite;
the compatilizer is a mixture of a silane coupling agent and a phthalate coupling agent, and the mass ratio of the silane coupling agent to the phthalate coupling agent is (1-2): 1, the silane coupling agent is 3-aminopropyl trimethoxy silane, and the phthalate is diisopropyl di (triethanolamine) titanate;
the stabilizer is a hindered amine light stabilizer.
2. The sponge with excellent durability according to claim 1, wherein the catalyst is an amine-based catalyst and/or a tin-based catalyst.
3. The sponge with excellent durability according to claim 2, wherein said amine catalyst is selected from at least one of N, N-dimethylcyclohexylamine, triethylenediamine, dimethylethanolamine, pentamethyldiethylenetriamine, and N, N-dimethylpiperazine.
4. The sponge with excellent durability according to claim 3, wherein said tin-based catalyst is selected from at least one of dibutyltin dilaurate, stannous octoate and dibutyltin diacetate.
5. The sponge with excellent durability according to claim 1, wherein the foaming agent is selected from at least one of amides, stearic acid, and water.
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