CN109320685A - The combination agent of flexible foam combined material, flexible foam combined material and preparation method thereof - Google Patents

The combination agent of flexible foam combined material, flexible foam combined material and preparation method thereof Download PDF

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Publication number
CN109320685A
CN109320685A CN201810959399.4A CN201810959399A CN109320685A CN 109320685 A CN109320685 A CN 109320685A CN 201810959399 A CN201810959399 A CN 201810959399A CN 109320685 A CN109320685 A CN 109320685A
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agent
flexible foam
combination agent
parts
combination
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卢凤江
李超
张家顺
杨瀚森
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Yingkou Jucheng Teaching Science & Technology Development Co Ltd
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Yingkou Jucheng Teaching Science & Technology Development Co Ltd
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Publication of CN109320685A publication Critical patent/CN109320685A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/48Polyethers
    • C08G18/4804Two or more polyethers of different physical or chemical nature
    • C08G18/4812Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/16Catalysts
    • C08G18/18Catalysts containing secondary or tertiary amines or salts thereof
    • C08G18/1825Catalysts containing secondary or tertiary amines or salts thereof having hydroxy or primary amino groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/16Catalysts
    • C08G18/22Catalysts containing metal compounds
    • C08G18/24Catalysts containing metal compounds of tin
    • C08G18/248Catalysts containing metal compounds of tin inorganic compounds of tin
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30Low-molecular-weight compounds
    • C08G18/32Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3271Hydroxyamines
    • C08G18/3278Hydroxyamines containing at least three hydroxy groups
    • C08G18/3281Hydroxyamines containing at least three hydroxy groups containing three hydroxy groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666Compounds of group C08G18/48 or C08G18/52
    • C08G18/667Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6681Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6688Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0008Foam properties flexible
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0083Foam properties prepared using water as the sole blowing agent

Abstract

The present invention is in the prior art, conventional polyurethanes froth texture is hard, tensile strength is low, it is easy to tear, and manufacturing cost is higher, pollute environment, the problem of human health is damaged, combination agent, the flexible foam combined material and preparation method thereof of a kind of flexible foam combined material are provided, the raw material of the flexible foam are made of combination agent A and combination agent B, combination agent A is made of the polyether polyols alcohols, plasticizer, catalyst, foaming agent of extra fine quality part, wherein the triethanolamine and blowing agent H in catalyst2O plays the role of crosslinking agent, without adding special crosslinking agent;Isophorone dicyanate is used alone in combination agent B, flexible polyurethane foams combination agent A and combination agent B fluffy according to formation quality after certain proportion reaction, also, safety and environmental protection, reduce environmental pollution and the injury to human body, while saving manufacturing cost.

Description

Combination agent, flexible foam combined material and its preparation of flexible foam combined material Method
Technical field
The present invention relates to a kind of combination agent of flexible foam combined material, flexible foam combined material and its preparation sides Method.
Background technique
With the rapid development of our country's economy, polyurethane foam is widely used, for example, sofa, mattress, various packagings Deng.Since polyurethane foam in the prior art is in the prevalence of disadvantage, i.e., hard, feel and comfort level are low.When quality is soft When soft, fluffy, tensile strength is reduced, and is easy to tear.And due to being added to toluene di-isocyanate(TDI) and diphenyl in material Methane diisocyanate, manufacturing cost is higher, and especially such material can generate penetrating odor, not only causes dirt to environment Dye, while injury is also resulted in human health.Requirement that is energy-saving, environmentally protective, developing to high-tech sector is not met.
Summary of the invention
The object of the present invention is to which conventional polyurethanes froth texture is hard, and tensile strength is low, is easy to tear in the prior art It splits, and manufacturing cost is higher, pollutes environment, the problem of damaging to human health, provide a kind of flexible foam combination material The combination agent of material, flexible foam combined material and preparation method thereof.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of combination agent of flexible foam combined material, by 50-85 parts of polyether polyols alcohols of mass parts;Plasticizer 10-43 Part;2-4 parts of catalyst;2-3 parts of foaming agent composition, polyether polyols alcohols be by polyether polyol with high activity, polyether Glycols by The mass ratio of 1:1-3:1 is composed, and wherein polyether polyol with high activity is the trihydroxy methyl third by initiator for three-functionality-degree Alkane introduces ethylene oxide segment in polypropylene oxide ether end group, secondary hydroxyl is become primary hydroxyl, hydroxyl value is 56 ± 2;Polyethers binary It is diethylene glycol (DEG) that alcohol, which is by initiator, is formed by Polymerization of Propylene Oxide, hydroxyl value 320-249;Plasticizer is that composite elasticizer is one The multi-functional benzoates water accack plasticizer of kind;Catalyst is the mixing of stannous octoate and triethanolamine 1-2:2.2 Object, foaming agent H2O, triethanolamine and H2O also serves as crosslinking agent;
Polyether polyol with high activity is three-functionality-degree, and molecular weight 2900-3116, the molecular weight of polyether Glycols is 350-450;
Under room temperature, said combination agent is added in reaction kettle for a kind of preparation method of the combination agent of flexible foam combined material, With 90-120 revs/min of mixing speed by combination agent polyether polyols alcohols, plasticizer, catalyst, foaming agent mixture It stirs evenly;
A kind of flexible foam combined material, raw material are made of combination agent A and isocyanates 100:20-40 in mass ratio, combination Agent A use said combination agent, isocyanates is isophorone diisocyanate, be made of acetone trimerization isophorone again with hydrogen Cyaniding isophorone is made in cyanic acid reaction, forms through restoring with phosgene reaction, for containing cis-isomer 75%, transisomer 25% mixture;
A kind of preparation method of flexible foam combined material, above-mentioned flexible foam combined material is uniformly mixed, is infused in 10 seconds Enter mold, is opened and takes out after being reacted post curing 15-20 minutes in mold;
After mixing, can be manually injected into mold can also machine flexible foam combined material using low-pressure casting;
A kind of application of flexible foam combined material, is used for sofa, mattress, and the packaging of electronic optical instrument instrument device protects material Skin, fat, the muscle of material, aviation vibration-absorptive material and medical lecture model.
Using the combination agent of flexible foam combined material provided by the invention, flexible foam combined material and its preparation side Method, since the raw material of the flexible foam are made of combination agent A and combination agent B.In combination agent A, using polyether polyols alcohols, increase Modeling agent, foaming agent, is matched by certain mass share catalyst;Isophorone dicyanate is used alone in combination agent B. According to soft polyurethane foam is formed after certain proportion reaction, such polyurethane foamed material has combination agent A and combination agent B There are good fluffy sense and flexibility, moreover, having stronger tensile strength and tearing strength.Its tensile strength and tearing strength It is 2-3 times of ordinary soft foam composition material such as polyurethane foam material etc.
Especially use stannous octoate and triethanolamine for catalyst in combination agent A, using H2O is foaming agent, energy-saving ring It protects, especially triethanolamine and H2Simultaneously using the effect for also acting as crosslinking agent, the two is used cooperatively O, enhances foamed material Tensile strength and flexibility;Due to material isophorone dicyanate in combination agent B, without adding toluene diisocyanate Acid esters and methyl diphenylene diisocyanate, do not generate penetrating odor, reduce environmental pollution and the injury to human body, simultaneously Manufacturing cost is saved, compound material cost reduces by 60.2%, and toluene two is not contained in the component of foamed material material of the invention Isocyanates (TDI), energy conservation and environmental protection.The flexible foamed material of component of the present invention, this foaming technique has filled up domestic blank, for me The development of the flexible foamed industry of state specifies new developing direction.
There is no special crosslinking agent in the component of combination agent A and flexible foam combined material of the invention, but by sending out Infusion H2Triethanolamine in O and catalyst also serves as crosslinking agent, and the two plays the role of crosslinking agent in the molecular structure, therefore Not only composition of raw materials is simple, and the overall performance of foamed material is more preferable, has obtained small light weight, density but tensile strength and tearing The extraordinary flexible foams of intensity, achieve unexpected technical effect.
Specific embodiment
The present invention is further described through combined with specific embodiments below:
A kind of flexible foam combined material is made of combination agent A and combination agent B.
Combination agent A:
Its raw material is by 50-85 parts of polyether polyols alcohols of mass parts;10-43 parts of plasticizer;2-4 parts of catalyst;2-3 parts of foaming agent Composition.Wherein polyether polyols alcohols is to be composed of polyether polyol with high activity and polyether Glycols by 1:1-3:1.It is wherein high Active polyether polyalcohol is the trimethylolpropane by initiator for three-functionality-degree, introduces oxidation second in polypropylene oxide ether end group Secondary hydroxyl is become primary hydroxyl by alkene segment, and hydroxyl value is 56 ± 2.Therefore, polyether polyol with high activity has three-functionality-degree, starting Agent trimethylolpropane molecule is in reticular structure, molecular weight 2900 to 3116 the characteristics of.Polyether polyol with high activity is added can With the tensile strength of reinforcing material.Its initiator of polyether Glycols is diethylene glycol (DEG), is formed by Polymerization of Propylene Oxide, hydroxyl value is 320-249, molecular weight exist, 350-450, and polyether Glycols, which are added, can significantly improve the flexibility of material.It is anti-through the applicant It is scientific to match with other auxiliary agents again the study found that after combining polyether polyol with high activity and polyether Glycols by 1:1-3:1 proportion Close use can form series of combination material, raising material tensile strength simultaneously, also greatly improve the flexibility of material, It is the splendid proportion combination of polyether polyol with high activity and polyether Glycols.
Plasticizer in combination agent A is composite elasticizer, is a kind of multi-functional benzoates water accack plasticising After this composite elasticizer is added, the flexibility of flexible foamed material is can be enhanced in agent, generates flexible foamed material special flexible Effect, while the tensile strength of the flexible foamed material is increased to 330.64Kpa, tensile strength and tearing strength are general 2-3 times of logical polyurethane flexible foam material, its addition can make the molecular structure of flexible foams and natural floating glue soft The molecular structure of foamed material is similar, obtains the flexibility for being similar to natural floating glue flexible foams, handle effect and day Right floating glue flexible foams are approximate, but cost and price is well below natural floating glue flexible foams.
Catalyst in combination agent A is mixed by stannous octoate and triethanolamine by 1-2:2.2 quality proportioning, three ethyl alcohol Amine is catalyst, plays the role of crosslinking agent again in the molecular structure.Moreover, triethanolamine reactivity is relatively low, material Operating time extend, good fluidity, hydroxyl is 1129 in molecule;Triethanolamine catalytic activity NCO/OH(isocyanates and more First alcohol) reaction is lower, and NCO/H2O (isocyanates with water) reacts higher;And stannous octoate NCO/OH reacts stronger, NCO/H2O React lower;Stannous octoate is mixed by 1-2:2.2 quality proportioning with triethanolamine, and feature is complementary, accelerates in combination agent A and mixes The reaction speed between object is closed, and reaction can be made more complete.
Foaming agent in combination agent A is H2O, H2O is a kind of chemical foaming agent, anti-with NCO in flexible foamed material It answers, forms molecular structure, enhance the overall performance of foamed material.Blowing agent H in the present invention2O also serves as crosslinking agent.H2O with Triethanolamine matches, and is equivalent to multiple crosslinking agent, instead of traditional crosslinking agent, enhance foamed material tensile strength and Flexibility.
The production technology and manufacturing method of above-mentioned A combination agent the following steps are included:
Firstly, being equipped with raw material in mass ratio: 50-85 parts of polyether polyols alcohols;10-43 parts of plasticizer;2-4 parts of catalyst;Hair Infusion 2-3, and all raw material is mixed, wherein polyether polyols alcohols by polyether polyol with high activity, polyether Glycols according to Mass ratio is 1:1-3:1 combination.Mixture is added in reaction kettle together at normal temperature, starts blender, with 90-120 revs/min Mixing speed stir evenly, can package spare.General stirring can stir evenly for 15-25 minutes.
Combination agent B:
Combination agent B is isocyanates, and isophorone dicyanate (TPDI) is used alone in the present invention, is made of acetone trimerization Isophorone is reacted with hydrogen cyanide again is made cyaniding isophorone, forms through restoring with phosgene reaction, is containing cis-isomer 75%, the mixture of transisomer 25%, isophorone diisocyanate feature are that stability is good, the aliphatic that do not turn yellow isocyanic acid Ester, reactivity is low, and vapour pressure is also low, without penetrating odor, not volatile and stability it is good environmental protection, it is environment friendly and pollution-free.Add After entering isophorone dicyanate, it is not necessary that toluene di-isocyanate(TDI) and methyl diphenylene diisocyanate is added, reduce to ring The pollution in border and injury to human health.Its 37.5% or more NCO mass fraction.
Said combination agent A and combination agent B is the combination material of the flexible foamed material, in use, pressing proportion by weight, group Mixture A: combination agent B=100:20-40 metering, stirs evenly, is rapidly injected mold, reaction and post curing 15-20 in mold It is opened after minute, takes out component, component is product after processing is qualified.The operating process hand-manipulated can also apply low Pressure casting machining.The time of injection mold, which generally supports, to be held in 5-20 seconds, preferably 10 seconds.
According to above-mentioned raw materials with the polyurethane foamed material that when manufacture craft is produced, density is low, up to 0.21 g/ cm3, quality is fluffy, but tensile strength is 2-3 times of conventional polyurethanes foamed material, tensile strength up to 330.64 Kpa, The excellent (see Table 2) of integrated performance index, has broken that density is low, tensile strength necessarily low existing cognition, achieves unexpected Technical effect.Its product is widely used in sofa, mattress, is the substitute of latex, but more much lower than the cost of latex, electronics Packaging protective materials, the aviation vibration-absorptive material of optical instrument instrument device, medical lecture model materials, such as skin, fat, muscle Deng.
After isophorone diisocyanate, then it is not necessary that toluene di-isocyanate(TDI) and diphenyl methane two is added Isocyanates reduces the injury to human body so its product does not have a penetrating odor, and can obtain good tensile strength and soft Toughness.In addition, making the material of same volume using the raw material proportioning, material quantity is compared with prior art formula material quantity It is 3/10ths of prior art material quantity, has greatly saved manufacturing cost, compound material cost reduces 60.2%.
Below by formula is implemented, the invention will be further described.
Implementing formula see the table below formula 1-8:
Raw material specifically matches as follows in formula 1-8, and ratio is mass ratio
In formula 1,50 parts of polyether polyols alcohols;43 parts of plasticizer;2 parts of catalyst;2 parts of foaming agent
Wherein, polyether polyol with high activity is poly-: ether dihydric alcohol=1:1
Stannous octoate: triethanolamine=1:1
Combination agent A: combination agent B=100:20
In formula 2,56 parts of polyether polyols alcohols;40 parts of plasticizer;2 parts of catalyst;2 parts of foaming agent
Wherein, polyether polyol with high activity is poly-: ether dihydric alcohol=3:1
Stannous octoate: triethanolamine=1:2
Combination agent A: combination agent B=100:23
In formula 3,60 parts of polyether polyols alcohols;35 parts of plasticizer;2.5 parts of catalyst;2.5 parts of foaming agent
Wherein, polyether polyol with high activity is poly-: ether dihydric alcohol=1.4:1
Stannous octoate: triethanolamine=1:1.5
Combination agent A: combination agent B=100:26
In formula 4,65.3 parts of polyether polyols alcohols;30 parts of plasticizer;2.7 parts of catalyst;2 parts of foaming agent
Wherein, polyether polyol with high activity is poly-: ether dihydric alcohol=1.2:1
Stannous octoate: triethanolamine=1:1.7
Combination agent A: combination agent B=100:28
In formula 5,70 parts of polyether polyols alcohols;25 parts of plasticizer;3 parts of catalyst;2 parts of foaming agent
Wherein, polyether polyol with high activity is poly-: ether dihydric alcohol=1.8:1
Triethanolamine: stannous octoate=2:1
Combination agent A: combination agent B=100:31
In formula 6,74.6 parts of polyether polyols alcohols;20 parts of plasticizer;3 parts of catalyst;2.4 parts of foaming agent
Wherein, polyether polyol with high activity is poly-: ether dihydric alcohol=1.8:1
Triethanolamine: stannous octoate=2:1
Combination agent A: combination agent B=100:33
In formula 7,79.4 parts of polyether polyols alcohols;15 parts of plasticizer;3.4 parts of catalyst;2.2 parts of foaming agent
Wherein, polyether polyol with high activity is poly-: ether dihydric alcohol=2.3:1
Triethanolamine: stannous octoate=1.8:1
Combination agent A: combination agent B=100:35
In formula 8,85 parts of polyether polyols alcohols;10 parts of plasticizer;4 parts of catalyst;2.2 parts of foaming agent
Wherein, polyether polyol with high activity is poly-: ether dihydric alcohol=1:1
Triethanolamine: stannous octoate=1:1
Combination agent A: combination agent B=100:40
It is formulated by embodiment 1-8 and flexible foam combined material that above-mentioned preparation method obtains, the key technical indexes is as follows Table 2:
Project Unit Flexible foam combined material technical indicator in the present invention
Density g/cm3 0.21
Tensile strength Kpa 330.64Kpa
Tearing strength N/cm 12.56
Anti-flammability It is provided according to GB240-80 Oxygen index (OI) >=25
Elongation % 321
50% compressive hardness Kpa 3.8

Claims (7)

1. a kind of combination agent of flexible foam combined material, which is characterized in that by the polyether polyols alcohols 50-85 of mass parts Part;10-43 parts of plasticizer;2-4 parts of catalyst;2-3 parts of foaming agent compositions, the polyether polyols alcohols is by high activity polyether Polyalcohol, polyether Glycols are composed by the mass ratio of 1:1-3:1, wherein the polyether polyol with high activity is by initiator For the trimethylolpropane of three-functionality-degree, ethylene oxide segment is introduced in polypropylene oxide ether end group, secondary hydroxyl is become into primary hydroxyl Base, hydroxyl value are 56 ± 2;It is diethylene glycol (DEG) that the polyether Glycols, which are by initiator, is formed by Polymerization of Propylene Oxide, hydroxyl value 320- 249;The plasticizer is that composite elasticizer is a kind of multi-functional benzoates water accack plasticizer;The catalyst For the mixture of stannous octoate and triethanolamine 1-2:2.2, the foaming agent is H2O, the triethanolamine and H2O also serves as crosslinking Agent.
2. a kind of combination agent of flexible foam combined material as described in claim 1, which is characterized in that the high activity is poly- Ethoxylated polyhydric alcohol is three-functionality-degree, and molecular weight 2900-3116, the molecular weight of the polyether Glycols is 350-450.
3. a kind of preparation method of the combination agent of flexible foam combined material, which is characterized in that under room temperature, by claim 1 The combination agent is added in reaction kettle, with 90-120 revs/min of mixing speed by the combination agent polyether polyols alcohols, Plasticizer, catalyst, foaming agent mixture stir evenly.
4. a kind of flexible foam combined material, which is characterized in that its raw material is by combination agent A and isocyanates in mass ratio 100: 20-40 composition, the combination agent A use combination agent described in claim 1, and the isocyanates is isophorone diisocyanate Ester is isophorone is made by acetone trimerization to react with hydrogen cyanide again that cyaniding isophorone is made, through reduction and phosgene reaction At for the mixture containing cis-isomer 75%, transisomer 25%.
5. a kind of preparation method of flexible foam combined material, which is characterized in that by flexible foam group described in claim 3 Condensation material is uniformly mixed, and injects mold in 10 seconds, is opened and is taken out after reacting post curing 15-20 minutes in mold.
6. a kind of preparation method of flexible foam combined material as claimed in claim 5, it is characterised in that the flexible foam After mixing, can be manually injected into mold can also machine combined material using low-pressure casting.
7. a kind of application of flexible foam combined material, which is characterized in that be used for sofa, mattress, electronic optical instrument console Skin, fat, the muscle for packing protective materials, aviation vibration-absorptive material and medical lecture model of part.
CN201810959399.4A 2018-08-22 2018-08-22 The combination agent of flexible foam combined material, flexible foam combined material and preparation method thereof Pending CN109320685A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
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