CN106398181A - Soft closed-cell polyurethane elastic foam and preparation method thereof, as well as application to tire and shoe sole - Google Patents

Soft closed-cell polyurethane elastic foam and preparation method thereof, as well as application to tire and shoe sole Download PDF

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Publication number
CN106398181A
CN106398181A CN201610816469.1A CN201610816469A CN106398181A CN 106398181 A CN106398181 A CN 106398181A CN 201610816469 A CN201610816469 A CN 201610816469A CN 106398181 A CN106398181 A CN 106398181A
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polyurethane foam
closed cell
elastic polyurethane
flexible closed
cell elastic
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王军耀
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Shanghai Jing Renxin Mstar Technology Ltd
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Shanghai Jing Renxin Mstar Technology Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04—Plastics, rubber or vulcanised fibre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/10—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers containing more than one epoxy radical per molecule
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2451/08—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention provides soft closed-cell polyurethane elastic foam and a preparation method thereof, as well as application to a tire and a shoe sole. The soft closed-cell polyurethane elastic foam is mainly prepared from the following components in parts by weight: 70 to 100 parts of TPU with the shore hardness of 50 A to 98 A, 0.01 to 1 part of a water repellent, 0.01 to 1 part of an antioxidant, 0.01 to 1 part of a light stabilizer, 1 to 5 parts of a nucleating agent, 0.01 to 1 part of epoxy resin, 0.01 to 1 part of maleic anhydride and 1 to 15 parts of sodium hydrogen carbonate. The preparation method is characterized in that a semicrystalline polyurethane elastomer is subjected to cell nucleating treatment before being foamed, so that the pressure in a reaction kettle is effectively reduced, and the requirement on equipment is greatly reduced.

Description

Flexible closed cell elastic polyurethane foam and preparation method thereof, on tire and sole Application
Technical field
The invention belongs to the technical field of closed-cell polyurethane foam and preparation closed-cell polyurethane foam method, specifically, Relate to a kind of flexible closed cell elastic polyurethane foam and preparation method thereof and this flexible closed cell elastic polyurethane foam in tire Application in core.
Background technology
Flexible closed cell elastic polyurethane foam refers to the elastic polyurethane foam beads with independent pore, this independent gas The elastic polyurethane foam beads in hole are applied in non-inflatable tyre core, pneumatic tire core, automobile by being molded into different shapes Seat sponge, footwear material and ocean ball float etc..
Patent CN201410391122.8, a kind of invention entitled TPUE expanded bead and its preparation Method, disclose a kind of using foaming twice, and send out using liquid carbon dioxide as the TPUE of foaming agent Bubble bead preparation method, in reactor used in this preparation method, pressure will reach 7.5～9.5MPa, the safety system to equipment Number has high demands, and the properties of product stability foaming out is low.Patent CN201510226686.0, a kind of invention entitled thermoplasticity Polyurethane elastomer expanded bead and preparation method thereof, discloses and prepares 60～94 parts of thermoplastic polyurethanes by the following raw material Elastomer, 2～20 parts of foaming agents, 0.5～3 part of crosslinking agent, 0.5～5 portion of nucleator, 2～10 parts of fillers, 1～2 part of light is stable Agent.In its preparation method using the other components except foaming agent are merged in an extruder, knead and plastify after, at head note The method entering the foaming agent mixing extrusion of formula ratio.The foaming of this TPUE expanded bead and preparation method thereof Though agent is open can be the environment-friendly materials such as carbon dioxide, foaming agent is injected into mixed material from cross-head, foam Quality is unstable, and foam structure is not single, and the born pressure of extrusion equipment is larger, and safety coefficient has high demands.
In order to solve the above problems, seek a kind of distribution of cells uniformly, production equipment safety coefficient, production technology environmental protection Flexible closed cell elastic polyurethane foam and its production method, people are seeking a kind of preferable technical solution always.
Content of the invention
The purpose of the present invention is for the deficiencies in the prior art, thus providing, a kind of distribution of cells is uniform, rate of closed hole is high The preparation side of the high flexible closed cell elastic polyurethane foam of flexible closed cell elastic polyurethane foam and environmental protection, equipment safety coefficient Method.
The technical solution used in the present invention is：A kind of flexible closed cell elastic polyurethane foam, by weight mainly by such as Lower component preparation：Shore hardness is TPU70～100 part of 50A～98A, 0.01～1 part of hydrophober, antioxidant 0.01～1 Part, 0.01～1 part of light stabilizer, 1～5 part of nucleator, 0.01～1 part of epoxy resin, 0.01～1 part of maleic anhydride, bicarbonate 1～15 part of sodium.This flexible closed cell elastic polyurethane foam increased nucleator and sodium acid carbonate, wherein sodium acid carbonate in formula React generation carbon dioxide with TPU plus thermogenetic sour gas, pernicious gas can either be reduced and produce, and bubble and nucleation Agent combines to form stable microcellular structure.Epoxy resin can be reacted with unnecessary sour gas, and maleic anhydride can be in foaming Stage uses as grafting agent, so that molecule is combined tightr, particle bubble even structure.Antioxidant can be in granulation and closed pore Stage makes material not oxidizable, and the addition of antiaging agent improves the ageing resistace of flexible closed cell elastic polyurethane foam, Prevent xanthochromia.
Based on above-mentioned, described antioxidant is Hinered phenols, and Hinered phenols antioxidant is the phenol that some have steric restriction Class compound, their thermal oxidation resistance effect is significant, there is excellent heat endurance and hot-air aging resistance, catch peroxidating certainly By base, product will not be polluted.
Based on above-mentioned, described antioxidant is 2,6- three-level butyl -4- methylphenol, double（3,5- three-level butyl -4- hydroxyls Phenyl）The mixing of one or more of thioether, four (β-(3,5- three-level butyl -4- hydroxy phenyl) propionic acid) pentaerythritol ester Thing.
Based on above-mentioned, described nucleator is calcium carbonate powder.
Based on above-mentioned, described epoxy resin is bisphenol A type epoxy resin, and transparency is higher, does not affect finished color.
Based on above-mentioned, it also includes thio-2 acid dibasic acid esters 0.01～1 weight portion, and it is anti-that hydroperoxide decomposition is used as auxiliary Oxygen agent and other antioxidant cooperation synergies, improve the oxidative resistance of finished product, reduce finished product xanthochromia probability.
A kind of flexible closed cell elastic polyurethane foam preparation processes, are made up of following steps：（1）By above-mentioned flexible closed cell The preparation component of elastic polyurethane foam mixes；
（2）By step（1）In the material that mixes granulate in an extruder and dry, prilling temperature is 170～220 degree, manufacture Particle be 1mg～10mg；
（3）Particle after drying, water, calcium carbonate powder with mass ratio are（9～12）：（8～13）：（0.3～2）Ratio mix Close, heat 120～150 degree, add carbon dioxide and/or nitrogen, pressure 1.5～5.0MPa in holding kettle is so that particle closed pore；
（4）Dehydration separates.
This production method focuses on and before foaming hemicrystalline polyurethane elastomer is carried out cell nucleation process, by one-tenth Core agent coordinates the process of sodium acid carbonate to obtain the polyurethane elastomer particle to be foamed of microcellular structure, polyurethane elastomer to be foamed About 1-20 μm of granule pores diameter, effectively reduces the pressure in reactor, actually reaches 1.5-5.0MPA, substantially reduce to setting Standby requirement, comminutor makes the micropore in flexible closed cell polyurethane foam be evenly distributed, to control distribution of cells during foaming.
A kind of application on automobile tire core for flexible closed cell elastic polyurethane foam, this automobile tire core includes volume integral The above-mentioned flexible closed cell elastic polyurethane foam of number 70%～90% and the air that volume fraction is 30%～10%.Flexible closed cell is gathered Urethane elastic foam rate of closed hole is high, and pore-forming uniformly can keep the lengthy pressure in tire to keep constant, extends making of tire With the life-span, prevent tire due to slow gas leakage, plies is peeled off, side is played drum and caused the shortening of tyre life.And have more to go out The cushioning ability of color, safe, will not blow out.
A kind of application on sole for flexible closed cell elastic polyurethane foam, the middle bottom of described sole soft is closed by above-mentioned Hole elastic polyurethane foam is made, and elasticity is good, can be injury-free with effective protection ankle.
Hinge structure of the present invention has prominent substantive distinguishing features and significantly improves, specifically, the present invention's Flexible closed cell elastic polyurethane foam adds nucleator and sodium acid carbonate formation microcellular structure to be foamed in the granulating formula stage TPU, uniformly, structural integrity is strong for pore-forming；And it is anti-with sodium acid carbonate with the sour gas of generation in course of reaction using nucleator The carbon dioxide that the feature of environmental protection should be generated combines, environmental friendly, green；Though furtherly this preparation method passes through high-pressure process by environmental protection Atmospheric carbon dioxide or nitrogen are introduced directly in the TPU particle preparing, and set certain temperature, so that foaming TPU particle is closed Hole, the technique comparing using liquid carbon dioxide foaming agent, the resistance to pressure request of equipment is greatly lowered, and safety coefficient improves.Again One step is said, the flexible closed cell elastic polyurethane foam of the present invention adds hydrophober in the granulating formula stage, can stop and slow down Finished product water suction is decomposed, xanthochromia.Flexible closed cell elastic polyurethane foam has pore-forming uniformly, and structural integrity is strong, the spy of color inhibition Point；Its production method has environmental protection, green, the low advantage of equipment cost.
Specific embodiment
Below by specific embodiment, technical scheme is described in further detail.
Embodiment 1
1st, the TPU70 part for 50A, 0.1 part of methyl silicon sodium alcoholate, 2,6- three-level butyl -4- methylphenols by weight portion shore hardness 0.1 part, 783 0.5 part of model BASF light stabilizers, 1 part of calcium carbonate, 0.5 part of epoxy resin, 0.5 part of maleic anhydride, bicarbonate 1 part of sodium mixes.
2nd, the material mixing in step 1 is granulated in an extruder and dry, prilling temperature is 170 degree, produces Granular mass is 1mg.
3rd, the polyurethane elastomer particle to be foamed that will prepare puts in autoclave, sequentially adds water, calcium carbonate, Proportions are 10:8:1, reactor is carried out being heated to 130 degree, after reaching predetermined temperature, inputs gaseous nitrogen into kettle Gas, gas pressure is set to 1.6MPA, keeps 30 minutes, rate of closed hole can reach more than 96%, and blowing passes sequentially through dehydration again Machine, dryer.
4th, the density measuring foaming polyurethanes elastomer after drying is 200kg/m3.
Embodiment 2
1st, the TPU85 part for 70A, 0.5 part of methyl silicon sodium alcoholate, 2,6- three-level butyl -4- methylphenols by weight portion shore hardness 0.5 part, 783 0.5 part of model BASF light stabilizers, 2 parts of calcium carbonate, 0.5 part of epoxy resin, 0.5 part of maleic anhydride, thio two 0.5 part of propionic acid dibasic acid esters, 2 parts of sodium acid carbonate mixes.
2nd, the material mixing in step 1 is granulated in an extruder and dry, prilling temperature is 180 degree, produces Granular mass is 3mg.
3rd, the polyurethane elastomer particle to be foamed that will prepare puts in autoclave, sequentially adds water, calcium carbonate, Proportions are 11:10:1.3, reactor is heated, is heated to 135 degree, after reaching predetermined temperature, input into kettle Gaseous nitrogen, gas pressure is set to 2.0MPA, keeps 40 minutes, rate of closed hole can reach more than 96%, and blowing leads to successively again Cross dewaterer, dryer.
4th, the density measuring foaming polyurethanes elastomer after drying is 160kg/m3.
Embodiment 3
1st, the TPU85 part for 90A, 0.8 part of methyl silicon sodium alcoholate, 2,6- three-level butyl -4- methylphenols by weight portion shore hardness 0.5 part, 783 0.3 part of model BASF light stabilizers, 3 parts of calcium carbonate, 0.4 part of epoxy resin, 0.15 part of maleic anhydride, thio 0.1 part of dipropyl acid diester, 5 parts of sodium acid carbonate mixes.
2nd, the material mixing in step 1 is granulated in an extruder and dry, prilling temperature is 180 degree, produces Granular mass is 5mg.
3rd, the polyurethane elastomer particle to be foamed that will prepare puts in autoclave, sequentially adds water, calcium carbonate, Proportions are 11:10:1.3, reactor is heated, is heated to 145 degree, after reaching predetermined temperature, input into kettle Gaseous nitrogen, gas pressure is set to 3.0MPA, keeps 50 minutes, and rate of closed hole can reach more than 96%, blowing, more successively By dewaterer, dryer.
4th, the density measuring foaming polyurethanes elastomer after drying is 102kg/m3.
Embodiment 4
1st, the TPU90 part for 98A, 0.5 part of methyl silicon sodium alcoholate, 2,6- three-level butyl -4- methylphenols by weight portion shore hardness 0.4 part, 783 0.5 part of model BASF light stabilizers, 3 parts of calcium carbonate, 0.3 part of epoxy resin, 0.3 part of maleic anhydride, thio two 0.5 part of propionic acid dibasic acid esters, 10 parts of sodium acid carbonate mixes.
2nd, the material mixing in step 1 is granulated in an extruder and dry, prilling temperature is 200 degree, produces Granular mass is 7mg.
3rd, the polyurethane elastomer particle to be foamed that will prepare puts in autoclave, sequentially adds water, calcium carbonate, Proportions are 10:12:1.7, reactor is heated, is heated to 130 degree, after reaching predetermined temperature, input into kettle Gaseous nitrogen, gas pressure is set to 5.0MPA, keeps 60 minutes, rate of closed hole can reach more than 96%, reach setting when Between after start blowing, pass sequentially through dewaterer, dryer.
4th, the density measuring foaming polyurethanes elastomer after drying is 58kg/m3.
Embodiment 5
1st, the TPU100 part for 50A, 0.5 part of methyl silicon sodium alcoholate, 2,6- three-level butyl -4- methylphenols by weight portion shore hardness 0.7 part, 783 0.5 part of model BASF light stabilizers, 5 parts of calcium carbonate, 0.1 part of epoxy resin, 0.1 part of maleic anhydride, bicarbonate 15 parts of sodium mixes；
2nd, the material mixing in step 1 is granulated in an extruder and dry, prilling temperature is 170 degree, the particle producing Quality is 3mg.
3rd, the polyurethane elastomer particle to be foamed that will prepare puts in autoclave, sequentially adds water, calcium carbonate, Proportions are 10:8:1, heating is carried out to reactor and is heated to 120 degree, after reaching predetermined temperature, input gaseous state into kettle Carbon dioxide, gas pressure is set to 4.7MPA, keeps 60 minutes, rate of closed hole can reach more than 96%, reach setting when Between after start blowing, pass sequentially through dewaterer, dryer.
4th, the density measuring foaming polyurethanes elastomer after drying is 60kg/m3.
Microcellular structure polyurethane elastomer particle, blow pressure and expansion density that embodiments above explanation prepares Line pipe closely, effectively reduces actual blow pressure, and by controlling blow pressure, expansion density is flexibly controlled, need not Second time of foaming.
Finally it should be noted that:Above example is only not intended to limit in order to technical scheme to be described；To the greatest extent Pipe has been described in detail to the present invention with reference to preferred embodiment, and those of ordinary skill in the art should be understood：Still The specific embodiment of the present invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this The spirit of bright technical scheme, it all should be covered in the middle of the technical scheme scope that the present invention is claimed.

Claims (9)

1. a kind of flexible closed cell elastic polyurethane foam it is characterised in that：It is mainly prepared by following component by weight：Shao Family name's hardness is TPU70～100 part of 50A～98A, 0.01～1 part of hydrophober, 0.01～1 part of antioxidant, light stabilizer 0.01 ～1 part, 1～5 part of nucleator, 0.01～1 part of epoxy resin, 0.01～1 part of maleic anhydride, 1～15 part of sodium acid carbonate.
2. flexible closed cell elastic polyurethane foam according to claim 1 it is characterised in that：Described antioxidant is to be obstructed Phenol antioxidant.
3. flexible closed cell elastic polyurethane foam according to claim 2 it is characterised in that：Described antioxidant is 2,6- Three-level butyl -4- methylphenol, double（3,5- three-level butyl -4- hydroxy phenyls）Thioether, four (β-(3,5- three-level butyl -4- hydroxyls Phenyl) propionic acid) one or more of pentaerythritol ester mixture.
4. flexible closed cell elastic polyurethane foam according to claim 1 it is characterised in that：Described nucleator is calcium carbonate Powder.
5. flexible closed cell elastic polyurethane foam according to claim 1 it is characterised in that：Described epoxy resin is bis-phenol A type epoxy resin.
6. the flexible closed cell elastic polyurethane foam according to any one of claim 1-5 it is characterised in that：It also includes sulphur For dipropyl acid diester 0.01～1 weight portion.
7. a kind of flexible closed cell elastic polyurethane foam preparation processes, are made up of following steps：（1）Claim 1-6 is arbitrary The preparation component of the flexible closed cell elastic polyurethane foam described in mixes；
（2）By step（1）In the material that mixes granulate in an extruder and dry, prilling temperature is 170～220 degree, manufacture Particle be 1mg～10mg；
（3）Particle after drying, water, calcium carbonate powder with mass ratio are（9～12）：（8～13）：（0.3～2）Ratio mix Close, heat 120～150 degree, add carbon dioxide and/or nitrogen, pressure 1.5～5.0MPa in holding kettle is so that particle closed pore；
（4）Dehydration separates.
8. a kind of application on automobile tire core for flexible closed cell elastic polyurethane foam it is characterised in that：It includes volume integral Flexible closed cell elastic polyurethane foam described in claim 1-6 of number 70%～90% and the sky that volume fraction is 30%～10% Gas.
9. a kind of application on sole for flexible closed cell elastic polyurethane foam it is characterised in that：The middle bottom of described sole is by weighing Profit requires the flexible closed cell elastic polyurethane foam described in 1-6 to make.
CN201610816469.1A 2016-09-12 2016-09-12 Soft closed-cell polyurethane elastic foam and preparation method thereof, as well as application to tire and shoe sole Pending CN106398181A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108715679A (en) * 2018-05-22 2018-10-30 广汉市新鸿海绵有限公司 A kind of PU sponges of good permeability and preparation method thereof
CN109867946A (en) * 2017-12-01 2019-06-11 万华化学集团股份有限公司 A kind of thermoplastic polyurethane foam particle and preparation method thereof
CN110819099A (en) * 2019-11-14 2020-02-21 丰县建鑫泡沫制品有限公司 Heat conduction cystosepiment
CN113105736A (en) * 2021-04-12 2021-07-13 池秀林 Soft polyurethane foam plastic and preparation process thereof
US11383411B2 (en) 2019-04-18 2022-07-12 Feng Tay Enterprises Co., Ltd. Shoe component and manufacturing method thereof
CN115368727A (en) * 2022-09-16 2022-11-22 上海嘉均瑞科技有限公司 High-resilience polyurethane foam material and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103642200A (en) * 2013-12-20 2014-03-19 烟台开发区新龙华包装材料有限公司 Foaming thermoplastic polyurethane bead and preparation method thereof
CN104877335A (en) * 2015-05-06 2015-09-02 丁钰 Thermoplastic polyurethane elastomer foamed bead and preparation method thereof
CN104974370A (en) * 2015-01-19 2015-10-14 常州市顺祥新材料科技有限公司 Preparation method of thermoplastic polyurethane beads and bead molding technology

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103642200A (en) * 2013-12-20 2014-03-19 烟台开发区新龙华包装材料有限公司 Foaming thermoplastic polyurethane bead and preparation method thereof
CN104974370A (en) * 2015-01-19 2015-10-14 常州市顺祥新材料科技有限公司 Preparation method of thermoplastic polyurethane beads and bead molding technology
CN104877335A (en) * 2015-05-06 2015-09-02 丁钰 Thermoplastic polyurethane elastomer foamed bead and preparation method thereof

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CN109867946A (en) * 2017-12-01 2019-06-11 万华化学集团股份有限公司 A kind of thermoplastic polyurethane foam particle and preparation method thereof
CN109867946B (en) * 2017-12-01 2021-06-29 万华化学集团股份有限公司 Thermoplastic polyurethane foaming particles and preparation method thereof
CN108715679A (en) * 2018-05-22 2018-10-30 广汉市新鸿海绵有限公司 A kind of PU sponges of good permeability and preparation method thereof
US11383411B2 (en) 2019-04-18 2022-07-12 Feng Tay Enterprises Co., Ltd. Shoe component and manufacturing method thereof
TWI773892B (en) * 2019-04-18 2022-08-11 豐泰企業股份有限公司 Physical foaming shoe component and manufacturing method thereof
CN110819099A (en) * 2019-11-14 2020-02-21 丰县建鑫泡沫制品有限公司 Heat conduction cystosepiment
CN113105736A (en) * 2021-04-12 2021-07-13 池秀林 Soft polyurethane foam plastic and preparation process thereof
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Application publication date: 20170215