CN114790272B - Preparation method and application of sponge with excellent durability - Google Patents

Preparation method and application of sponge with excellent durability Download PDF

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Publication number
CN114790272B
CN114790272B CN202110714557.1A CN202110714557A CN114790272B CN 114790272 B CN114790272 B CN 114790272B CN 202110714557 A CN202110714557 A CN 202110714557A CN 114790272 B CN114790272 B CN 114790272B
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flame retardant
sponge
mixed material
foaming
coupling agent
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CN114790272A (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
    • C08G18/48—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
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • 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
    • C08K5/0091—Complexes with metal-heteroatom-bonds
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/544—Silicon-containing compounds containing nitrogen
    • 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

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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)
  • Polyurethanes Or Polyureas (AREA)

Abstract

The invention belongs to the technical field of foaming materials, and particularly relates to a preparation method and application of a sponge with excellent durability. A method for producing a sponge having excellent durability, comprising at least the steps of: (1) Placing polyether polyol, polymer polyol, a flame retardant, a compatilizer and a stabilizer into different storage tanks, and introducing into mixing equipment through a metering pump to obtain a mixed material A; (2) Placing isocyanate, a catalyst and a foaming agent into different storage tanks, and introducing the materials into mixing equipment through a metering pump to be mixed with the mixed material A to obtain a mixed material B; (3) And (3) inputting the mixed material B into a shaping mould through a pipeline, automatically foaming, and shaping to obtain the finished product. According to the technical scheme, the inventor controls the feeding sequence, the temperature of materials, the stirring speed and the foaming pressure to enable the sponge to foam stably, and the sponge has good and regular porosity and excellent mechanical properties.

Description

Preparation method and application of sponge with excellent durability
Technical Field
The invention belongs to the technical field of foaming materials, and particularly relates to a preparation method and application of 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. When the sponge is used for furniture, the high porosity of the sponge can improve the air permeability of the sponge and the comfort of the sponge; when the sponge is used for cleaning articles, the high porosity of the sponge can improve the cleaning performance of the sponge, so that the sponge can forcefully remove various stains. The porosity and the properties of the sponge are closely related to the preparation method of the sponge. The existing sponge has low porosity and poor durability, and can be threshed in the long-time use process, so that the durability of the sponge is affected.
Disclosure of Invention
In order to solve the above technical problems, a first aspect of the present invention provides a method for preparing a sponge having excellent durability, comprising at least the steps of:
(1) Placing polyether polyol, polymer polyol, a flame retardant, a compatilizer and a stabilizer into different storage tanks, and introducing into mixing equipment through a metering pump to obtain a mixed material A;
(2) Placing isocyanate, a catalyst and a foaming agent into different storage tanks, and introducing the materials into mixing equipment through a metering pump to be mixed with the mixed material A to obtain a mixed material B;
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, automatically foaming, and shaping to obtain the finished product.
Preferably, in the step (1), the temperature of the mixing device is 20+/-5 ℃, and the mixed material A in the step (1) is stirred at a stirring speed of 1500-2500r/min.
Preferably, in the step (2), the temperature of the mixing device is 20+/-5 ℃, and the mixed material B in the step (2) is stirred at 4000-5000r/min.
Preferably, the pressure of the shaping mould in the step (3) is 0.25-0.4MPa.
Preferably, in the automatic foaming in the step (3), the foaming time is 15-80s.
Preferably, the flame retardant is a mixture of 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.
preferably, the inorganic flame retardant is at least one selected from graphite, antimony trioxide, magnesium hydroxide, aluminum hydroxide, melamine and zinc borate.
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 molecules of the compatilizer comprise at least one amino group.
The sponge prepared by the preparation method of the sponge with excellent durability is applied to furniture manufacture.
The beneficial effects are that: according to the technical scheme, the inventor controls the feeding sequence, the temperature of materials, the stirring speed and the foaming pressure to enable the sponge to foam stably, and the sponge has good and regular porosity and excellent mechanical properties. Meanwhile, the inventor prepares the use types and the use amounts of the flame retardants to ensure that the sponge has excellent flame retardant property, and the inventor adds a certain compatilizer to improve the compatibility among all substances and the uniformity of the whole material, so that the whole sponge has excellent mechanical property, has better durable usability in the long-term use process and does not have the phenomenon of threshing.
Detailed Description
The following detailed description of specific embodiments of the invention will provide a clear and complete description of the embodiments described as being only a partial, but not all, of the embodiments of the invention. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Additionally, the numerical ranges disclosed herein are continuous numerical ranges and include the minimum and maximum values of the ranges, as well as each value between such minimum and maximum values, unless otherwise indicated. Unless otherwise indicated, all materials disclosed herein are commercially available.
In order to solve the above technical problems, a first aspect of the present invention provides a method for preparing a sponge having excellent durability, comprising at least the steps of:
(1) Placing polyether polyol, polymer polyol, a flame retardant, a compatilizer and a stabilizer into different storage tanks, and introducing into mixing equipment through a metering pump to obtain a mixed material A;
(2) Placing isocyanate, a catalyst and a foaming agent into different storage tanks, and introducing the materials into mixing equipment through a metering pump to be mixed with the mixed material A to obtain a mixed material B;
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, automatically foaming, and shaping to obtain the finished product.
As a preferable technical scheme, in the step (1), the temperature of the mixing equipment is 20+/-5 ℃, and the mixed material A in the step (1) is stirred at a stirring speed of 1500-2500r/min.
As a preferable technical scheme, in the step (2), the temperature of the mixing equipment is 20+/-5 ℃, and the mixed material B in the step (2) is stirred at 4000-5000r/min.
As a preferable technical scheme, the pressure of the shaping mould in the step (3) is 0.25-0.4MPa.
As a preferable technical scheme, the foaming time is 15-80s when the foam is automatically foamed in the step (3).
As a preferable technical scheme, the method further comprises the step of placing the foam body with the automatic foaming completion in an oven with the temperature of 80-100 ℃ for curing for 20-30min.
The inventor finds that the foaming material can form a complete three-dimensional net-shaped foaming structure by controlling the stirring speed of the material A and the stirring speed of the material B, so that the formed foam holes have higher strength during foaming, and further the uniformity and rebound resilience of the formed pores of the foaming material are improved. However, when the stirring speed is too high, the foam holes formed by the foam are easy to break, so that not only is the uniformity of the foam holes disturbed, but also the rebound resilience and mechanical properties of the foam are reduced. However, when the stirring speed is too low, the strength of cells formed by the foam is small, and the resilience of the foam as a whole is lowered.
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 preferable technical scheme, the flame retardant is a mixture without organic flame retardant and 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 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 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 retardant property and the antibacterial property of the sponge foaming body can be improved by adding a certain amount of expanded graphite, the expanded graphite can be inserted into the foam holes of the foaming body to be tightly combined with the foam holes, the strength of the foam holes is improved, and the rebound resilience of the foaming body is increased, but when the using amount of the expanded graphite is too large, part of the expanded graphite cannot be combined with the foaming body and can be separated from the foaming body, so that the integral mechanical property and the durability of the sponge foaming body are affected. However, when the content of the expanded graphite is small, the flame retardant effect cannot reach the ideal index. 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, the organic silicon flame retardant can bind the expanded graphite, so that the expanded graphite is stably stored in the sponge for foaming, the organic silicon flame retardant can migrate to the surface of the sponge, a protective layer is formed on the outer layer of the sponge to prevent the expanded graphite 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 sponge, and meanwhile, the migration or separation of the expanded graphite in the sponge is prevented, so that the uniformity, stability and 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.
The sponge prepared by the preparation method of the sponge with excellent durability is applied to furniture manufacture.
Examples
Example 1
A first aspect of the present embodiment provides a method for preparing a sponge having excellent durability, comprising the steps of:
(1) 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatilizer and 0.75 part of stabilizer are placed in different storage tanks, and are fed into mixing equipment through a metering pump, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 1500r/min, and the stirring time is 5min, so that a mixed material A is obtained. The hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, and the hydroxyl value of the polymer polyol is 33-37mg KOH/g, which is purchased from Shandong blue Star and Dong university Co., ltd, and CHE-3602, which 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, which is purchased from Nanjing product Ning coupling agent Co., ltd, and the stabilizer is hindered amine light stabilizer, specifically UV3853.
(2) 30 parts of isocyanate, 0.3 part of catalyst and 2 parts of foaming agent are placed in different storage tanks, and are introduced into mixing equipment through a metering pump to be mixed with the mixed material A, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 4000r/min, and the stirring time is 5min, so that the mixed material B is obtained. The isocyanate is toluene diisocyanate, 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, and the foaming agent is water.
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, wherein the pressure in the shaping mould is 0.25MPa, and the automatic foaming is carried out for 45s.
(4) And (3) placing the foam body subjected to automatic foaming in the step (3) in an oven at 80 ℃ for curing for 20min, and obtaining the foam body.
The sponge with excellent durability prepared in this example was used in furniture manufacturing.
Example 2
A first aspect of the present embodiment provides a method for preparing a sponge having excellent durability, comprising the steps of:
(1) 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatilizer and 0.75 part of stabilizer are placed in different storage tanks, and are fed into mixing equipment through a metering pump, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 2500r/min, and the stirring time is 5min, so that a mixed material A is obtained. The hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, and the hydroxyl value of the polymer polyol is 33-37mg KOH/g, which is purchased from Shandong blue Star and Dong university Co., ltd, and CHE-3602, which 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, which is purchased from Nanjing product Ning coupling agent Co., ltd, and the stabilizer is hindered amine light stabilizer, specifically UV3853.
(2) 30 parts of isocyanate, 0.3 part of catalyst and 2 parts of foaming agent are placed in different storage tanks, and are introduced into mixing equipment through a metering pump to be mixed with the mixed material A, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 5000r/min, and the stirring time is 5min, so that the mixed material B is obtained. The isocyanate is toluene diisocyanate, 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, and the foaming agent is water.
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, wherein the pressure in the shaping mould is 0.25MPa, and the automatic foaming is carried out for 45s.
(4) And (3) placing the foam body subjected to automatic foaming in the step (3) in an oven at 80 ℃ for curing for 20min, and obtaining the foam body.
The sponge with excellent durability prepared in this example was used in furniture manufacturing.
Example 3
A first aspect of the present embodiment provides a method for preparing a sponge having excellent durability, comprising the steps of:
(1) 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatilizer and 0.75 part of stabilizer are placed in different storage tanks, and are fed into mixing equipment through a metering pump, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 500r/min, and the stirring time is 5min, so that a mixed material A is obtained. The hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, and the hydroxyl value of the polymer polyol is 33-37mg KOH/g, which is purchased from Shandong blue Star and Dong university Co., ltd, and CHE-3602, which 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, which is purchased from Nanjing product Ning coupling agent Co., ltd, and the stabilizer is hindered amine light stabilizer, specifically UV3853.
(2) 30 parts of isocyanate, 0.3 part of catalyst and 2 parts of foaming agent are placed in different storage tanks, and are introduced into mixing equipment through a metering pump to be mixed with the mixed material A, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 2000r/min, and the stirring time is 5min, so that the mixed material B is obtained. The isocyanate is toluene diisocyanate, 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, and the foaming agent is water.
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, wherein the pressure in the shaping mould is 0.25MPa, and the automatic foaming is carried out for 45s.
(4) And (3) placing the foam body subjected to automatic foaming in the step (3) in an oven at 80 ℃ for curing for 20min, and obtaining the foam body.
The sponge with excellent durability prepared in this example was used in furniture manufacturing.
Example 4
A first aspect of the present embodiment provides a method for preparing a sponge having excellent durability, comprising the steps of:
(1) 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatilizer and 0.75 part of stabilizer are placed in different storage tanks, and are fed into mixing equipment through a metering pump, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 4000r/min, and the stirring time is 5min, so that a mixed material A is obtained. The hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, and the hydroxyl value of the polymer polyol is 33-37mg KOH/g, which is purchased from Shandong blue Star and Dong university Co., ltd, and CHE-3602, which 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, which is purchased from Nanjing product Ning coupling agent Co., ltd, and the stabilizer is hindered amine light stabilizer, specifically UV3853.
(2) 30 parts of isocyanate, 0.3 part of catalyst and 2 parts of foaming agent are placed in different storage tanks, and are introduced into mixing equipment through a metering pump to be mixed with the mixed material A, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 5500r/min, and the stirring time is 5min, so that the mixed material B is obtained. The isocyanate is toluene diisocyanate, 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, and the foaming agent is water.
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, wherein the pressure in the shaping mould is 0.25MPa, and the automatic foaming is carried out for 45s.
(4) And (3) placing the foam body subjected to automatic foaming in the step (3) in an oven at 80 ℃ for curing for 20min, and obtaining the foam body.
The sponge with excellent durability prepared in this example was used in furniture manufacturing.
Example 5
A first aspect of the present embodiment provides a method for preparing a sponge having excellent durability, comprising the steps of:
(1) 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatilizer and 0.75 part of stabilizer are placed in different storage tanks, and are fed into mixing equipment through a metering pump, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 1500r/min, and the stirring time is 5min, so that a mixed material A is obtained. The hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, and the hydroxyl value of the polymer polyol is 33-37mg KOH/g, which is purchased from Shandong blue Star and Dong university Co., ltd, and CHE-3602, which is purchased from Changhua chemical technology Co., ltd. The flame retardant is an inorganic flame retardant, wherein 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, which is purchased from Nanjing product Ning coupling agent Co., ltd, and the stabilizer is hindered amine light stabilizer, specifically UV3853.
(2) 30 parts of isocyanate, 0.3 part of catalyst and 2 parts of foaming agent are placed in different storage tanks, and are introduced into mixing equipment through a metering pump to be mixed with the mixed material A, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 4000r/min, and the stirring time is 5min, so that the mixed material B is obtained. The isocyanate is toluene diisocyanate, 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, and the foaming agent is water.
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, wherein the pressure in the shaping mould is 0.25MPa, and the automatic foaming is carried out for 45s.
(4) And (3) placing the foam body subjected to automatic foaming in the step (3) in an oven at 80 ℃ for curing for 20min, and obtaining the foam body.
The sponge with excellent durability prepared in this example was used in furniture manufacturing.
Example 6
A first aspect of the present embodiment provides a method for preparing a sponge having excellent durability, comprising the steps of:
(1) 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatilizer and 0.75 part of stabilizer are placed in different storage tanks, and are fed into mixing equipment through a metering pump, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 1500r/min, and the stirring time is 5min, so that a mixed material A is obtained. The hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, and the hydroxyl value of the polymer polyol is 33-37mg KOH/g, which is purchased from Shandong blue Star and Dong university Co., ltd, and CHE-3602, which 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: 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, which is purchased from Nanjing product Ning coupling agent Co., ltd, and the stabilizer is hindered amine light stabilizer, specifically UV3853.
(2) 30 parts of isocyanate, 0.3 part of catalyst and 2 parts of foaming agent are placed in different storage tanks, and are introduced into mixing equipment through a metering pump to be mixed with the mixed material A, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 4000r/min, and the stirring time is 5min, so that the mixed material B is obtained. The isocyanate is toluene diisocyanate, 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, and the foaming agent is water.
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, wherein the pressure in the shaping mould is 0.25MPa, and the automatic foaming is carried out for 45s.
(4) And (3) placing the foam body subjected to automatic foaming in the step (3) in an oven at 80 ℃ for curing for 20min, and obtaining the foam body.
The sponge with excellent durability prepared in this example was used in furniture manufacturing.
Example 7
A first aspect of the present embodiment provides a method for preparing a sponge having excellent durability, comprising the steps of:
(1) 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatilizer and 0.75 part of stabilizer are placed in different storage tanks, and are fed into mixing equipment through a metering pump, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 1500r/min, and the stirring time is 5min, so that a mixed material A is obtained. The hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, and the hydroxyl value of the polymer polyol is 33-37mg KOH/g, which is purchased from Shandong blue Star and Dong university Co., ltd, and CHE-3602, which 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, which is purchased from Nanjing product Ning coupling agent Co., ltd, and the stabilizer is hindered amine light stabilizer, specifically UV3853.
(2) 30 parts of isocyanate, 0.3 part of catalyst and 2 parts of foaming agent are placed in different storage tanks, and are introduced into mixing equipment through a metering pump to be mixed with the mixed material A, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 4000r/min, and the stirring time is 5min, so that the mixed material B is obtained. The isocyanate is toluene diisocyanate, 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, and the foaming agent is water.
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, wherein the pressure in the shaping mould is 0.25MPa, and the automatic foaming is carried out for 45s.
(4) And (3) placing the foam body subjected to automatic foaming in the step (3) in an oven at 80 ℃ for curing for 20min, and obtaining the foam body.
The sponge with excellent durability prepared in this example was used in furniture manufacturing.
Example 8
A first aspect of the present embodiment provides a method for preparing a sponge having excellent durability, comprising the steps of:
(1) 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatilizer and 0.75 part of stabilizer are placed in different storage tanks, and are fed into mixing equipment through a metering pump, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 1500r/min, and the stirring time is 5min, so that a mixed material A is obtained. The hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, and the hydroxyl value of the polymer polyol is 33-37mg KOH/g, which is purchased from Shandong blue Star and Dong university Co., ltd, and CHE-3602, which 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 stabilizer is a hindered amine light stabilizer, specifically UV3853.
(2) 30 parts of isocyanate, 0.3 part of catalyst and 2 parts of foaming agent are placed in different storage tanks, and are introduced into mixing equipment through a metering pump to be mixed with the mixed material A, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 4000r/min, and the stirring time is 5min, so that the mixed material B is obtained. The isocyanate is toluene diisocyanate, 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, and the foaming agent is water.
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, wherein the pressure in the shaping mould is 0.25MPa, and the automatic foaming is carried out for 45s.
(4) And (3) placing the foam body subjected to automatic foaming in the step (3) in an oven at 80 ℃ for curing for 20min, and obtaining the foam body.
The sponge with excellent durability prepared in this example was used in furniture manufacturing.
Example 9
A first aspect of the present embodiment provides a method for preparing a sponge having excellent durability, comprising the steps of:
(1) 60 parts of polyether polyol, 25 parts of polymer polyol, 3 parts of flame retardant, 3 parts of compatilizer and 0.75 part of stabilizer are placed in different storage tanks, and are fed into mixing equipment through a metering pump, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 1500r/min, and the stirring time is 5min, so that a mixed material A is obtained. The hydroxyl value of the polyether polyol is 54-58mg KOH/g, DEP-5631E, and the hydroxyl value of the polymer polyol is 33-37mg KOH/g, which is purchased from Shandong blue Star and Dong university Co., ltd, and CHE-3602, which 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, the phthalate ester is diisopropyl di (triethanolamine) titanate, the compatilizer is purchased from Nanjing product Ning coupling agent Co, and the stabilizer is a hindered amine light stabilizer, specifically UV3853.
(2) 30 parts of isocyanate, 0.3 part of catalyst and 2 parts of foaming agent are placed in different storage tanks, and are introduced into mixing equipment through a metering pump to be mixed with the mixed material A, wherein the temperature of the mixing equipment is 20+/-2 ℃, the stirring speed is 4000r/min, and the stirring time is 5min, so that the mixed material B is obtained. The isocyanate is toluene diisocyanate, 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, and the foaming agent is water.
(3) And (3) inputting the mixed material B into a shaping mould through a pipeline, wherein the pressure in the shaping mould is 0.25MPa, and the automatic foaming is carried out for 45s.
(4) And (3) placing the foam body subjected to automatic foaming in the step (3) in an oven at 80 ℃ for curing for 20min, and obtaining the foam body.
The sponge with excellent durability prepared in this example was used in furniture manufacturing.
Performance testing
Performance test 1
Porosity: a sponge was prepared as in examples 1-9, a 100mL beaker was selected, filled with water to a weight of 50mL beaker and a mass of water m1, and each 1cm was cut 3 The sponges in examples 1 to 9 (length, width and height are 1cm respectively), the mass ms of the sponges in examples 1 to 9 is accurately weighed, a small piece of the sponge is clamped by clean tweezers and immersed in water, the sponge is subjected to ultrasonic treatment for a period of time to be fully contacted with water, bubbles in the pores of the sponge are removed to enable the water to be filled in the pores of the sponge, then water is added to an initial scale, the mass m2 of a beaker, water and the sponge is weighed again, the sponge fully absorbed with water is taken out by the tweezers, the water on the surface of the sponge is filtered, and the mass m3 of the rest water and the beaker is weighed again, and the steps are respectively calculatedThe porosities of the respective sponges were calculated, and the average was taken three times for each sponge, and the porosities= (m 2-m 3-ms)/(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 9, and the sponges of examples 1 to 9 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 9, and the sponges of examples 1 to 9 were tested for flame retardancy with reference to the GB8624-2006 standard.
Performance test four
Durability: according to the formulations in examples 1 to 9, sponges were prepared in the same manner, and the same-sized sponges in examples 1 to 9 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.
The above embodiments are only some of the embodiments of the present invention, and any simple modification, equivalent replacement of components, contents and production conditions in the embodiments still fall within the scope of the technical solution of the present invention.

Claims (4)

1. A method for producing a sponge having excellent durability, characterized by comprising at least the steps of:
(1) Placing polyether polyol, polymer polyol, a flame retardant, a compatilizer and a stabilizer into different storage tanks, and introducing into mixing equipment through a metering pump to obtain a mixed material A;
(2) Placing isocyanate, a catalyst and a foaming agent into different storage tanks, and introducing the materials into mixing equipment through a metering pump to be mixed with the mixed material A to obtain a mixed material B;
(3) The mixed material B is input into a shaping mould through a pipeline, and is automatically foamed and shaped to obtain the material;
the flame retardant is a mixture of 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, 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, a step of;
the inorganic flame retardant is graphite, and the graphite 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 hydroxyl value of the polyether polyol is 54-58mgKOH/g;
the hydroxyl value of the polymer polyol is 33-37mg KOH/g;
the brominated flame retardant is decabromodiphenyl ethane;
in the step (1), the temperature of the mixing equipment is 20+/-5 ℃, and the mixed material A in the step (1) is stirred at a stirring speed of 1500-2500r/min;
in the step (2), the temperature of the mixing equipment is 20+/-5 ℃, and the mixed material B in the step (2) is stirred at 4000-5000r/min.
2. The method for producing a sponge with excellent durability according to claim 1, wherein the pressure of the shaping mold in the step (3) is 0.25-0.4MPa.
3. The method for producing a sponge having excellent durability according to claim 1, wherein the foaming time is 15 to 80s at the time of automatic foaming in the step (3).
4. A sponge prepared by the method for preparing a sponge having excellent durability according to any one of claims 1 to 3, for use in furniture manufacturing.
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