CN108774392A - A kind of the PU formulas and its technique of uniform in foaming - Google Patents

A kind of the PU formulas and its technique of uniform in foaming Download PDF

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Publication number
CN108774392A
CN108774392A CN201810605645.6A CN201810605645A CN108774392A CN 108774392 A CN108774392 A CN 108774392A CN 201810605645 A CN201810605645 A CN 201810605645A CN 108774392 A CN108774392 A CN 108774392A
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China
Prior art keywords
foaming
uniform
agent
formulated
chain extender
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Chinese (zh)
Inventor
丁宁
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Jiangsu Yuan Yuan Rubber Products Co Ltd
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Jiangsu Yuan Yuan Rubber Products Co Ltd
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Priority to CN201810605645.6A priority Critical patent/CN108774392A/en
Publication of CN108774392A publication Critical patent/CN108774392A/en
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    • C—CHEMISTRY; METALLURGY
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • C08J9/145—Halogen containing compounds containing carbon, halogen and hydrogen only only chlorine as halogen atoms
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    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3206—Polyhydroxy compounds aliphatic
    • C—CHEMISTRY; METALLURGY
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225—Polyamines
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    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225—Polyamines
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3271—Hydroxyamines
    • C08G18/3275—Hydroxyamines containing two hydroxy groups
    • C—CHEMISTRY; METALLURGY
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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    • C08G18/40—High-molecular-weight compounds
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    • 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
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    • C08G18/48—Polyethers
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7607—Compounds of C08G18/7614 and of C08G18/7657
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
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    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
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    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
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    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
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    • C08K3/00—Use of inorganic substances as compounding ingredients
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  • Polyurethanes Or Polyureas (AREA)

Abstract

The invention discloses a kind of PU of uniform in foaming formulas and its technique, it includes component A and B component that the PU formulas, which are polyurethane formulations, and wherein component A includes the raw material of following parts by weight：60~80 parts of polyester polyol, 10~30 parts of polyether polyol, 10~20 parts of water, 0.2~0.5 part of catalyst, 0.1~0.2 part of foam stabiliser, 4~8 parts of foaming agent, 14~18 parts of chain extender, 3~6 parts of fire retardant, 2~3 parts of anti-aging agent, the B component include the raw material of following parts by weight：30~60 parts of isocyanates.Polyurethane foam uniform in foaming produced by the present invention, and distribution of cells is uniform, the dimensionally stable of foam, and with the characteristics such as high temperature resistant, low temperature resistant, wear-resisting, anti-aging.

Description

A kind of the PU formulas and its technique of uniform in foaming
Technical field
The present invention relates to the production field of PU materials, the PU formulas and its technique of specifically a kind of uniform in foaming.
Background technology
In the prior art, wheelchair or material trolley etc. are generally adopted by rubber tyre, and rubber tyre is generally inflated wheel Tire is easy heat production height in the case of some pavement roughnesses, inside rubber tyre body, therefore causes the explosion of tire.Present city Occur the solid tyre of some rubber on field, and these solid rubber tyres are to increase its intensity, are usually added in its raw material Add the materials such as carbon black, road surface can be caused black trace occur in such tire running, then causes the pollution etc. of environment.Therefore existing There is the polyurethane material i.e. wheel of PU material.
Traditional polyurethane material is improper since the addition of auxiliary agent or major ingredient matches in the process of making, be easy to cause poly- Urethane frostproof froth n is uneven, and stability, tearing toughness etc. to influence PU material then be easy to cause the resistance to of PU products Grind performance and service life.
Invention content
The present invention provides the PU formulas and its work of a kind of uniform in foaming of the good and anti-aging PU wheels of uniform in foaming, stability Skill.
The present invention solves above-mentioned technical problem and adopts the technical scheme that：A kind of PU formulas of uniform in foaming, the PU match Side is that polyurethane formulations include component A and B component, and wherein component A includes the raw material of following parts by weight：
The B component includes the raw material of following parts by weight：
30~60 parts of isocyanates.
Further, the isocyanates chooses the mixture of one or both of TDI and MDI in any proportion.
Further, the catalyst includes foaming amine catalyst and gel amine catalyst, wherein
The foaming amine catalyst is one kind in bis- (N, silomate base ethyl) ethers and bis- (3- dimethyl propylenes amino) amine Or the mixture of more than one arbitrary proportion；
The gel amine catalyst is 2,4,3- (two suitable methylamine methyl) phenol, 1,3,5 ,-three (dimethylamine propyl)-hexahydros Change the mixture of one or more kinds of arbitrary proportions in triazine and triethylenediamine.
Further, the foam stabiliser is organic silicone oil.
Further, the foaming agent is any one in water, dichloromethane, F-11 or F-12.
Further, the fire retardant is any one in ammonium phosphate, antimony oxide and aluminium hydroxide.
Further, the chain extender includes amine chain extender and alcohols chain extender,
The amine chain extender is in MOCA, ethylenediamine (DA) and N, N- dihydroxy (diisopropyl) aniline (HPA) The mixture of one or more kinds of arbitrary proportions；
The alcohols chain extender be have one butanediol of Isosorbide-5-Nitrae (BDO), one kind in 1,6 one hexylene glycol the two or it is a kind of with The mixture of upper arbitrary proportion.
Further, the anti-aging agent is amines antioxidants.
Further, the polyurethane formulations further include pigment.
In addition, the present invention also provides a kind of PU techniques of uniform in foaming, include the following steps：
(1) polyester polyol, polyether polyol, water, catalyst, foam stabiliser, foaming agent, chain is weighed according to formula to increase Long agent, fire retardant and anti-aging agent；
(2) by polyester polyol, polyether polyol, water, catalyst, foam stabiliser, chain extender, fire retardant and anti-old Agent sequentially adds in reaction kettle, is stirred mixing, and mixing time is 1~2h, and whipping temp is 45~85 DEG C, and mixing speed For 1000~1200r/min；
(3) isocyanates is weighed according to formula, and be added into reaction kettle；
(4) reaction kettle that isocyanates is added is sufficiently stirred, whipping temp is 60~80 DEG C, and mixing time is 1.5~2.5h, and mixing speed is 1100~1300r/min；
(5) foaming agent is added in reaction kettle, is sufficiently stirred, you can polyurethane foam.
Above-mentioned material and method, polyurethane foam uniform in foaming produced by the present invention are used, and distribution of cells is uniform, steeped The dimensionally stable of foam, and with the characteristics such as high temperature resistant, low temperature resistant, wear-resisting, anti-aging, while utilizing the product obtained by it wear-resisting Performance is good, and earth-grasping force is good, and tearing toughness is high, and has good damping effect, and service life is long.
Specific implementation mode
In order that the present invention can be more clearly and readily understood, below according to specific embodiment, in the present invention Wall putty powder and its production technology are described in further detail.
Embodiment one：
A kind of PU formulas of uniform in foaming, it includes component A and B component, wherein component A that the PU formulas, which are polyurethane formulations, Include the raw material of following parts by weight：
The B component includes the raw material of following parts by weight：
30 parts of isocyanates.
Specifically, water primarily serves the effect of chain extender, while being also that carbon dioxide bubble raw material sources occur.
The isocyanates chooses the mixture of one or both of TDI and MDI in any proportion.
TDI is toluene di-isocyanate(TDI), and, rebound good using the polyurethane products draftability of its making preferably, can increase The anti seismic efficiency of PU products, more, and MDI is '-diphenylmethane diisocyanate to comfort when use, and reaction speed is fast, to mould The degree of dependence for having temperature is low, can be produced with low mould temperature, and anti-aging property is excellent, and price is low, the production of made polyurethane Product density and hardness is high.
The catalyst includes foaming amine catalyst and gel amine catalyst, wherein
The foaming amine catalyst is one kind in bis- (N, silomate base ethyl) ethers and bis- (3- dimethyl propylenes amino) amine Or the mixture of more than one arbitrary proportion；
The gel amine catalyst is 2,4,3- (two suitable methylamine methyl) phenol, 1,3,5 ,-three (dimethylamine propyl)-hexahydros Change the mixture of one or more kinds of arbitrary proportions in triazine and triethylenediamine.
The effect of catalyst is can be catalyzed foaming and gel reaction during the reaction, to promote reaction acceleration into Row.
The foam stabiliser is organic silicone oil.
Foam stabiliser can promote foam stabilization, the size and structure of control abscess, promote uniform in foaming, to improve The stability and intensity of PU material.
The foaming agent is any one in water, dichloromethane, F-11 or F-12.
Foaming agent is used as bubble source and removes reaction heat after can vaporizing, avoid foam center from being generated because of high temperature and burn The phenomenon that, increase the stability and intensity of PU material.
The fire retardant is any one in ammonium phosphate, antimony oxide and aluminium hydroxide.
The setting of fire retardant can increase the flame retardant property of PU material, improve the security performance during its use.
The chain extender includes amine chain extender and alcohols chain extender,
The amine chain extender is in MOCA, ethylenediamine (DA) and N, N- dihydroxy (diisopropyl) aniline (HPA) The mixture of one or more kinds of arbitrary proportions；
The alcohols chain extender be have one butanediol of Isosorbide-5-Nitrae (BDO), one kind in 1,6 one hexylene glycol the two or it is a kind of with The mixture of upper arbitrary proportion.
The setting of chain extender can improve and adjust the performance of polyurethane, improve the mechanics and processing performance of polyurethane.
The anti-aging agent is amines antioxidants.
The setting of anti-aging agent can increase the anti-aging function of polyurethane, extend the service life of PU material.
The polyurethane formulations further include pigment.
As long as pigment is for changing the color of polyurethane, to produce the product of different colours, increase being applicable in for product Range.
In addition, the present invention also provides a kind of PU techniques of uniform in foaming, include the following steps：
(1) polyester polyol, polyether polyol, water, catalyst, foam stabiliser, foaming agent, chain is weighed according to formula to increase Long agent, fire retardant and anti-aging agent；
(2) by polyester polyol, polyether polyol, water, catalyst, foam stabiliser, chain extender, fire retardant and anti-old Agent sequentially adds in reaction kettle, is stirred mixing, mixing time 1h, whipping temp is 45 DEG C, and mixing speed is 1000r/min；
At such temperature and mixing speed, the abundant reaction and mixing of each raw material can be promoted.
(3) isocyanates is weighed according to formula, and be added into reaction kettle；
(4) reaction kettle that isocyanates is added being sufficiently stirred, whipping temp is 60 DEG C, mixing time 1.5h, And mixing speed is 1100r/min；
Isocyanates is fully mixed with the raw mixture in step (2), polyurethane foam can be promoted Uniformity.
(5) foaming agent is added in reaction kettle, is sufficiently stirred, you can polyurethane foam.
Embodiment two：
A kind of PU formulas of uniform in foaming, it includes component A and B component, wherein component A that the PU formulas, which are polyurethane formulations, Include the raw material of following parts by weight：
The B component includes the raw material of following parts by weight：
60 parts of isocyanates.
Specifically, water primarily serves the effect of chain extender, while being also that carbon dioxide bubble raw material sources occur.
The isocyanates chooses the mixture of one or both of TDI and MDI in any proportion.
TDI is toluene di-isocyanate(TDI), and, rebound good using the polyurethane products draftability of its making preferably, can increase The anti seismic efficiency of PU products, more, and MDI is '-diphenylmethane diisocyanate to comfort when use, and reaction speed is fast, to mould The degree of dependence for having temperature is low, can be produced with low mould temperature, and anti-aging property is excellent, and price is low, the production of made polyurethane Product density and hardness is high.
The catalyst includes foaming amine catalyst and gel amine catalyst, wherein
The foaming amine catalyst is one kind in bis- (N, silomate base ethyl) ethers and bis- (3- dimethyl propylenes amino) amine Or the mixture of more than one arbitrary proportion；
The gel amine catalyst is 2,4,3- (two suitable methylamine methyl) phenol, 1,3,5 ,-three (dimethylamine propyl)-hexahydros Change the mixture of one or more kinds of arbitrary proportions in triazine and triethylenediamine.
The effect of catalyst is can be catalyzed foaming and gel reaction during the reaction, to promote reaction acceleration into Row.
The foam stabiliser is organic silicone oil.
Foam stabiliser can promote foam stabilization, the size and structure of control abscess, promote uniform in foaming, to improve The stability and intensity of PU material.
The foaming agent is any one in water, dichloromethane, F-11 or F-12.
Foaming agent is used as bubble source and removes reaction heat after can vaporizing, avoid foam center from being generated because of high temperature and burn The phenomenon that, increase the stability and intensity of PU material.
The fire retardant is any one in ammonium phosphate, antimony oxide and aluminium hydroxide.
The setting of fire retardant can increase the flame retardant property of PU material, improve the security performance during its use.
The chain extender includes amine chain extender and alcohols chain extender,
The amine chain extender is in MOCA, ethylenediamine (DA) and N, N- dihydroxy (diisopropyl) aniline (HPA) The mixture of one or more kinds of arbitrary proportions；
The alcohols chain extender be have one butanediol of Isosorbide-5-Nitrae (BDO), one kind in 1,6 one hexylene glycol the two or it is a kind of with The mixture of upper arbitrary proportion.
The setting of chain extender can improve and adjust the performance of polyurethane, improve the mechanics and processing performance of polyurethane.
The anti-aging agent is amines antioxidants.
The setting of anti-aging agent can increase the anti-aging function of polyurethane, extend the service life of PU material.
The polyurethane formulations further include pigment.
As long as pigment is for changing the color of polyurethane, to produce the product of different colours, increase being applicable in for product Range.
In addition, the present invention also provides a kind of PU techniques of uniform in foaming, include the following steps：
(1) polyester polyol, polyether polyol, water, catalyst, foam stabiliser, foaming agent, chain is weighed according to formula to increase Long agent, fire retardant and anti-aging agent；
(2) by polyester polyol, polyether polyol, water, catalyst, foam stabiliser, chain extender, fire retardant and anti-old Agent sequentially adds in reaction kettle, is stirred mixing, mixing time 2h, whipping temp is 85 DEG C, and mixing speed is 1200r/min；
At such temperature and mixing speed, the abundant reaction and mixing of each raw material can be promoted.
(3) isocyanates is weighed according to formula, and be added into reaction kettle；
(4) reaction kettle that isocyanates is added being sufficiently stirred, whipping temp is 80 DEG C, mixing time 2.5h, And mixing speed is 1300r/min；
Isocyanates is fully mixed with the raw mixture in step (2), polyurethane foam can be promoted Uniformity.
(5) foaming agent is added in reaction kettle, is sufficiently stirred, you can polyurethane foam.
Embodiment three：
A kind of PU formulas of uniform in foaming, it includes component A and B component, wherein component A that the PU formulas, which are polyurethane formulations, Include the raw material of following parts by weight：
The B component includes the raw material of following parts by weight：
45 parts of isocyanates.
Specifically, water primarily serves the effect of chain extender, while being also that carbon dioxide bubble raw material sources occur.
The isocyanates chooses the mixture of one or both of TDI and MDI in any proportion.
TDI is toluene di-isocyanate(TDI), and, rebound good using the polyurethane products draftability of its making preferably, can increase The anti seismic efficiency of PU products, more, and MDI is '-diphenylmethane diisocyanate to comfort when use, and reaction speed is fast, to mould The degree of dependence for having temperature is low, can be produced with low mould temperature, and anti-aging property is excellent, and price is low, the production of made polyurethane Product density and hardness is high.
The catalyst includes foaming amine catalyst and gel amine catalyst, wherein
The foaming amine catalyst is one kind in bis- (N, silomate base ethyl) ethers and bis- (3- dimethyl propylenes amino) amine Or the mixture of more than one arbitrary proportion；
The gel amine catalyst is 2,4,3- (two suitable methylamine methyl) phenol, 1,3,5 ,-three (dimethylamine propyl)-hexahydros Change the mixture of one or more kinds of arbitrary proportions in triazine and triethylenediamine.
The effect of catalyst is can be catalyzed foaming and gel reaction during the reaction, to promote reaction acceleration into Row.
The foam stabiliser is organic silicone oil.
Foam stabiliser can promote foam stabilization, the size and structure of control abscess, promote uniform in foaming, to improve The stability and intensity of PU material.
The foaming agent is any one in water, dichloromethane, F-11 or F-12.
Foaming agent is used as bubble source and removes reaction heat after can vaporizing, avoid foam center from being generated because of high temperature and burn The phenomenon that, increase the stability and intensity of PU material.
The fire retardant is any one in ammonium phosphate, antimony oxide and aluminium hydroxide.
The setting of fire retardant can increase the flame retardant property of PU material, improve the security performance during its use.
The chain extender includes amine chain extender and alcohols chain extender,
The amine chain extender is in MOCA, ethylenediamine (DA) and N, N- dihydroxy (diisopropyl) aniline (HPA) The mixture of one or more kinds of arbitrary proportions；
The alcohols chain extender be have one butanediol of Isosorbide-5-Nitrae (BDO), one kind in 1,6 one hexylene glycol the two or it is a kind of with The mixture of upper arbitrary proportion.
The setting of chain extender can improve and adjust the performance of polyurethane, improve the mechanics and processing performance of polyurethane.
The anti-aging agent is amines antioxidants.
The setting of anti-aging agent can increase the anti-aging function of polyurethane, extend the service life of PU material.
The polyurethane formulations further include pigment.
As long as pigment is for changing the color of polyurethane, to produce the product of different colours, increase being applicable in for product Range.
In addition, the present invention also provides a kind of PU techniques of uniform in foaming, include the following steps：
(1) polyester polyol, polyether polyol, water, catalyst, foam stabiliser, foaming agent, chain is weighed according to formula to increase Long agent, fire retardant and anti-aging agent；
(2) by polyester polyol, polyether polyol, water, catalyst, foam stabiliser, chain extender, fire retardant and anti-old Agent sequentially adds in reaction kettle, is stirred mixing, mixing time 1.5h, whipping temp is 65 DEG C, and mixing speed is 1100r/min；
At such temperature and mixing speed, the abundant reaction and mixing of each raw material can be promoted.
(3) isocyanates is weighed according to formula, and be added into reaction kettle；
(4) reaction kettle that isocyanates is added being sufficiently stirred, whipping temp is 70 DEG C, mixing time 5h, and Mixing speed is 1200r/min；
Isocyanates is fully mixed with the raw mixture in step (2), polyurethane foam can be promoted Uniformity.
(5) foaming agent is added in reaction kettle, is sufficiently stirred, you can polyurethane foam.
Polyurethane foam uniform in foaming obtained by PU formulas and technique of the present invention using its record, and distribution of cells is equal It is even, the dimensionally stable of foam, and with the characteristics such as high temperature resistant, low temperature resistant, wear-resisting, anti-aging, while utilizing the production obtained by it Product wear-resisting property is good, and earth-grasping force is good, and tearing toughness is high, and has good damping effect, and service life is long.
Particular embodiments described above, pair present invention solves the technical problem that, technical solution and advantageous effect carry out It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair Within bright protection domain.

Claims (10)

1. a kind of PU of uniform in foaming is formulated, it is characterised in that：It includes component A and B component that PU formula, which is polyurethane formulations, Wherein component A includes the raw material of following parts by weight：
The B component includes the raw material of following parts by weight：
30~60 parts of isocyanates.
2. the PU of uniform in foaming according to claim 1 is formulated, it is characterised in that：The isocyanates chooses TDI and MDI One or both of mixture in any proportion.
3. the PU of uniform in foaming according to claim 1 is formulated, it is characterised in that：The catalyst includes foaming amine catalysis Agent and gel amine catalyst, wherein
The foaming amine catalyst is one kind or one in bis- (N, silomate base ethyl) ethers and bis- (3- dimethyl propylenes amino) amine Kind or more arbitrary proportion mixture；
The gel amine catalyst is 2,4,3- (two suitable methylamine methyl) phenol, 1,3,5 ,-three (dimethylamine propyl)-hexahydros three The mixture of one or more kinds of arbitrary proportions in piperazine and triethylenediamine.
4. the PU of uniform in foaming according to claim 1 is formulated, it is characterised in that：The foam stabiliser is organosilicon Oil.
5. the PU of uniform in foaming according to claim 1 is formulated, it is characterised in that：The foaming agent be water, dichloromethane, Any one in F-11 or F-12.
6. the PU of uniform in foaming according to claim 1 is formulated, it is characterised in that：The fire retardant is ammonium phosphate, oxidation Any one in antimony and aluminium hydroxide.
7. the PU of uniform in foaming according to claim 1 is formulated, it is characterised in that：The chain extender includes that amine chain increases Long agent and alcohols chain extender,
The amine chain extender is one kind in MOCA, ethylenediamine (DA) and N, N- dihydroxy (diisopropyl) aniline (HPA) Or the mixture of more than one arbitrary proportions；
The alcohols chain extender is to have the one or more in one butanediol of Isosorbide-5-Nitrae (BDO), 1,6 one hexylene glycol the two to appoint The mixture of meaning ratio.
8. the PU of uniform in foaming according to claim 1 is formulated, it is characterised in that：The anti-aging agent is amines antioxidants.
9. the PU of uniform in foaming according to claim 1 is formulated, it is characterised in that：The polyurethane formulations further include face Material.
10. a kind of PU techniques of uniform in foaming, it is characterised in that：Include the following steps：
(1) polyester polyol, polyether polyol, water, catalyst, foam stabiliser, foaming agent, chain growth are weighed according to formula Agent, fire retardant and anti-aging agent；
(2) by polyester polyol, polyether polyol, water, catalyst, foam stabiliser, chain extender, fire retardant and anti-aging agent according to In secondary addition reaction kettle, it is stirred mixing, mixing time is 1~2h, and whipping temp is 45~85 DEG C, and mixing speed is 1000~1200r/min；
(3) isocyanates is weighed according to formula, and be added into reaction kettle；
(4) to be added isocyanates reaction kettle be sufficiently stirred, whipping temp be 60~80 DEG C, mixing time be 1.5~ 2.5h, and mixing speed is 1100~1300r/min；
(5) foaming agent is added in reaction kettle, is sufficiently stirred, you can polyurethane foam.
CN201810605645.6A 2018-06-13 2018-06-13 A kind of the PU formulas and its technique of uniform in foaming Pending CN108774392A (en)

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Application publication date: 20181109