WO2013037179A1 - 一种用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物 - Google Patents

一种用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物 Download PDF

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WO2013037179A1
WO2013037179A1 PCT/CN2012/000337 CN2012000337W WO2013037179A1 WO 2013037179 A1 WO2013037179 A1 WO 2013037179A1 CN 2012000337 W CN2012000337 W CN 2012000337W WO 2013037179 A1 WO2013037179 A1 WO 2013037179A1
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component
elastomer composition
skinning
self
polyether polyol
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PCT/CN2012/000337
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English (en)
French (fr)
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孙清峰
孙兆任
栾森
牛富刚
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山东东大一诺威聚氨酯有限公司
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Priority to KR1020137023897A priority Critical patent/KR101446231B1/ko
Priority to SG2013069141A priority patent/SG193457A1/en
Priority to BR112013029587-2A priority patent/BR112013029587B1/pt
Publication of WO2013037179A1 publication Critical patent/WO2013037179A1/zh

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04Polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C5/00Inflatable pneumatic tyres or inner tubes
    • B60C5/002Inflatable pneumatic tyres or inner tubes filled at least partially with foam material
    • 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
    • C08G18/10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • 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
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • 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
    • C08G18/63Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • 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
    • C08G18/63Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • C08G18/632Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
    • 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
    • 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
    • C08G18/6674Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • 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
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • 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
    • C08G18/77Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78Nitrogen
    • 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
    • C08G2110/0041Foam properties having specified density
    • C08G2110/0066≥ 150kg/m3

Definitions

  • the present invention is in the field of polyurethane elastomers, and more particularly to a microporous polyurethane elastomer composition for polyurethane foamed tires.
  • the self-skinning microcellular polyurethane elastomer is a polyurethane foam elastomer material which forms a watch and a foam core at a time during the foaming process.
  • foam and elastomer As a new material between foam and elastomer, it combines the good mechanical properties of elastomer and the comfort of foam. It has high strength, good toughness, light weight, stable compressive stress transmission, oil resistance or It has many advantages such as water resistance and excellent fatigue resistance. Among them, excellent cushioning and damping effect is gradually replacing traditional rubber materials and is widely used in automotive soft parts, such as tire preparation.
  • polyester semi-prepolymers which are common polyurethane sole stocks on the market.
  • the microporous elastomer material prepared by using polyester B material has excellent mechanical properties, and the foamed material has high hardness and good elasticity; however, due to the large molecular polarity of the polymer molecular structure, the alternating stress is Under the action, the endogenous heat of the material increases, the heat accumulates a lot, and it is easy to cause the center of focus, which makes the product lose its application value. Therefore, the low temperature resistance and dynamic mechanical properties of the polyester polyurethane foam tire are relatively inferior.
  • polyester microporous elastomer material is not resistant to hydrolysis and mold.
  • Microcellular elastomers are used in automotive armrests, automotive steering wheels, soles, and midsole.
  • CN1986592A reports a method for improving the mechanical properties of polyether polyurethane microcellular elastomers, but most of the microporous elastomer materials mentioned in these patents are only used for polyurethane soles or insole materials, and cannot be used for polyurethane foam tires.
  • Patent CN101857670A uses polycarbonate polyols prepared from carbon dioxide and epoxides for the preparation of microcellular elastomers having relatively good mechanical properties, but it is also only suitable for the preparation of polyurethane shoe mats.
  • the literature on polyether microcellular elastomeric compositions that can be used in polyurethane tires has rarely been reported.
  • the technical problem to be solved by the present invention is to provide a polyether type microporous elasticity for a polyurethane foamed tire.
  • the composition has a superior mechanical properties, good resilience, high skin hardness, and excellent hydrolysis resistance and mold resistance.
  • a self-skinning microcellular elastomer composition for a polyurethane foamed tire comprising: component A and component B, wherein:
  • Component A is a mixture of a polyether polyol, a polymer polyol, a crosslinking agent or/and a chain extender, a foam stabilizer, a catalyst and a blowing agent, and a total of polyether polyol and polymer polyol.
  • the weight is 100%
  • the polyether polyol is 60 to 90%
  • the polymer polyol is 10 to 40%
  • the other components are percentages of the total weight of the polyether polyol and the polymer polyol: crosslinker or /
  • the foaming agent is 0. 0 ⁇ 2.
  • the catalyst is 0. 03 ⁇ 1.
  • the foaming agent is 0. 0bu 10%;
  • the component B is an alcohol-modified isocyanate, - the mass content of NC0 is between 18.0% and 20. 0%, the composition of the raw material is, in weight percent:
  • Polyether polyol 20 ⁇ 40%
  • Isocyanate 50 ⁇ 70%.
  • the polyether polyol in the component A is a high primary hydroxyl group, a low unsaturation polyether polyol, a number average molecular weight of 5000 to 8000, a functionality of 2 to 3, a primary hydroxyl group content of 65%, an unsaturation of 0. 008 meq/ g.
  • the polymer polyol in component A is a styrene-acrylonitrile graft modified polyether polyol, preferably one of P0P36/28, P0P93/28, P0P40 (commercially available) produced by Bluestar Dongda Chemical. Or a variety.
  • the crosslinking agent in the component A may be selected from one or a mixture of one of glycerol, trimethylolpropane, pentaerythritol, triethanolamine and diethanolamine, and the chain extender is selected from 3,3-dichloro-4,4. -diphenyltoluenediamine, 3,5-dimethylthiotoluenediamine, 3,5-diethyltoluenediamine, ethylene glycol, propylene glycol, 1, 4-butanediol, diethylene glycol One or a mixture of one or more of an alcohol, dipropylene glycol, and 1, 3-pentanediol, preferably 1,4-butanediol.
  • the components of the crosslinking agent and the chain extender may also be selected and used at the same time, and one or more of the substances may be selected.
  • the foam stabilizer in component A is a silicone surfactant, preferably American Gas Chemicals Co., Ltd. DC3043 (commercially available product) or Shanghai High Schmidt Chemical Co., Ltd. 8444 (commercially available product).
  • the catalyst in component A is an organotin catalyst and a tertiary amine catalyst, preferably dibutyltin dilaurate (T-12), triethylenediamine (A-33), bis(dimethylaminoethyl)ether ( A-1), and delayed equilibrium catalysis One or more of the agents (C-225).
  • the blowing agent is monofluorodichloroethane (HCFC-141B).
  • the polyether polyol in component B has a number average molecular weight of 6000 ⁇ 8000, a functionality of 3, and an unsaturation.
  • the small molecule alcohol in component B is one of 1,4-butanediol, 2-methyl1,3-tripropanediol, diethylene glycol, dipropylene glycol, and 1,3-pentanediol. Or a mixture of more than one.
  • the preferred amount is 5% to 10% of the amount of the raw material of the component B.
  • the isocyanate in component B is 4,4-diphenylmethane diisocyanate or carbonized diimine modified isocyanate.
  • the polyurethane foamed tire prepared by the composition of the present invention has excellent mechanical properties, good resilience and high skin hardness.
  • Example 2 When using, maintain the temperature of component A at 25 ⁇ 30°C, maintain the temperature of component B at 30 ⁇ 40°C, mix A and B materials uniformly according to the weight ratio of 100:90, and centrifuge to the mold to obtain polyurethane micro Hole elastomer tire.
  • Example 2 When using, maintain the temperature of component A at 25 ⁇ 30°C, maintain the temperature of component B at 30 ⁇ 40°C, mix A and B materials uniformly according to the weight ratio of 100:90, and centrifuge to the mold to obtain polyurethane micro Hole elastomer tire.
  • Example 2 When using, maintain the temperature of component A at 25 ⁇ 30°C, maintain the temperature of component B at 30 ⁇ 40°C, mix A and B materials uniformly according to the weight ratio of 100:90, and centrifuge to the mold to obtain polyurethane micro Hole elastomer tire.
  • Example 2 When using, maintain the temperature of component A at 25 ⁇ 30°C, maintain the temperature of component B at 30 ⁇ 40°C, mix A and B
  • Comparative example 1 When using, maintain the temperature of component A at 25 ⁇ 30°C, maintain the temperature of component B at 30 ⁇ 40°C, mix A and B materials uniformly according to the weight ratio of 100:90, and centrifuge to the mold to obtain polyurethane micro Hole elastomer tire.
  • Comparative example 1 When using, maintain the temperature of component A at 25 ⁇ 30°C, maintain the temperature of component B at 30 ⁇ 40°C, mix A and B materials uniformly according to the weight ratio of 100:90, and centrifuge to the mold to obtain polyurethane micro Hole elastomer tire. Comparative example 1 :
  • the material of the material of Example 1 was used for the material A, and the material of the Asahikawa chemical sole material B8090 was used for the material B.
  • Example A The material of Example A was used for the material A, and the material of the material of the Huntsman sole was SUPRASEC2614.
  • microporous elastomer composition prepared by the present invention has excellent performance and can replace the polyester type sole liquid to prepare a polyurethane microcellular elastomer tire.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Tyre Moulding (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

本发明涉及一种用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物。该组合物由A组分和B组分组成,所述A组分含有聚醚多元醇、聚合物多元醇、交联剂或/和扩链剂、泡沫稳定剂、催化剂以及发泡剂;所述B组分为醇改性异氰酸酯,-NCO的质量含量在18.0%~20.0%之间;A、B组分混合质量比为100:70~100;该组合料制备的微孔弹性体材料具有优异的力学性能,可代替目前常规的聚酯型鞋底原液料制备聚氨酯发泡轮胎。

Description

一种用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物 技术领域
本发明属于聚氨酯弹性体领域, 特别涉及一种用于聚氨酯发泡轮胎的微孔聚氨 酯弹性体组合物。
背景技术
自结皮微孔聚氨酯弹性体是一种在发泡过程中一次形成表材与泡沫芯材的聚氨 酯泡沫弹性体材料。 作为一种介于泡沬与弹性体之间的新型材料, 其兼具了弹性体 良好的机械性能和泡沫材料的舒适性, 具有强度高、 韧性好、 质量轻、 压缩应力传 递平稳、 耐油或耐水以及优异的抗疲劳性能等众多优点, 其中优异的缓冲减震作用 使其正在逐步取代传统的橡胶材料而被广泛的应用于汽车软性部件, 如轮胎的制备。
目前聚氨酯发泡轮胎的制备中 B料多是采用聚酯型半预聚体, 即市场上常见的 聚氨酯鞋底原液料。 采用聚酯型 B料制备的微孔弹性体材料具有优异的机械力学性 能, 发泡材料的硬度高, 弹性好; 但是由于聚合物分子结构中含有大量极性的酯基, 在交变应力的作用下, 材料的内生热增大, 热量大量积聚, 容易造成焦心, 使产品 丧失应用价值; 因此, 聚酯型的聚氨酯发泡轮胎耐低温性能和动态力学性能相对不 是很好。 此外, 由于聚酯多元醇中的酯基容易水解, 在湿热条件下很容易发生分子 链断链、 分解, .因此聚酯型的微孔弹性体材料耐水解性和耐霉菌性不好。
采用聚醚型半预聚体来制备聚氨酯微孔弹性体可有效地解决上述问题。 但是采 用常规的聚醚型半预聚体制备的聚氨酯微孔弹性体材料力学性能太低, 相同密度条 件下, 表皮硬度也太低, 难以达到聚氨酯发泡轮胎的表面硬度和力学性能要求。 很 多专利都报道了采用新型低不饱和度聚醚多元醇制备的微孔弹性体具有较好的性 能, 如专利 CN1341132A 报道的可用于鞋底和鞋底夹层的聚氨酯微孔弹性体, 专利 CN1320131A制备的聚氨酯微孔弹性体可用于汽车扶手, 汽车方向盘、 鞋底以及鞋底 夹层。 CN1986592A报道了一种提高聚醚型聚氨酯微孔弹性体力学性能的方法, 但是 这些专利所提到的微孔弹性体材料绝大多数仅用于聚氨酯鞋底或鞋垫料, 不能用于 聚氨酯发泡轮胎的制备。专利 CN101857670A将二氧化碳和环氧化物制备的聚碳酸酯 多元醇用于微孔弹性体的制备, 具有较 的力学性能, 但其也仅适用于聚氨酯鞋垫 料的制备。 可用于聚氨酯轮胎的聚醚型微孔弹性体组合料的文献却鲜有报道。
发明内容
本发明所要解决的技术问题是提供一种用于聚氨酯发泡轮胎的聚醚型微孔弹性 体组合物, 该组合物制备的聚氨酯发泡轮胎具有优异的力学性能、 良好的回弹性, 较高的表皮硬度以及优异的耐水解性和耐霉菌性。
本发明的技术方案是: 一种用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物,. 由 A组份与 B组份组成, 其中:
(1) A组份由聚醚多元醇、 聚合物多元醇、 交联剂或 /和扩链剂、 泡沫稳定剂、 催化剂和发泡剂混合而成, 以聚醚多元醇和聚合物多元醇总重量为 100%计, 聚醚多 元醇为 60〜90%, 聚合物多元醇为 10〜40%, 其它组份占聚醚多元醇和聚合物多元醇 总重量的百分数分别为: 交联剂或 /和扩链剂 10〜25%, 泡沫稳定剂 0. 2〜2. 5%, 催 化剂 0. 03〜1. 0%, 发泡剂 0. 0卜 10%;
(2) B组份为醇改性的异氰酸酯, - NC0的质量含量在 18. 0%〜20. 0%之间, 原料 组成为, 以重量百分数计:
聚醚多元醇: 20〜40%
小分子醇: 0〜10%
异氰酸酯: 50〜70%。
(3) 将 A组份与 B组份按 100: 70〜100的重量比例混合, 用于聚氨酯发泡轮胎 的制备。
其中优选的技术方案为:
A 组份中聚醚多元醇为高伯羟基含量、 低不饱和度聚醚多元醇, 数均分子量 5000〜8000, 官能度 2〜3, 伯羟基质量含量 65%, 不饱和度 0. 008meq/g。
A组份中聚合物多元醇为苯乙烯-丙烯腈接枝改性的聚醚多元醇, 优选蓝星东大 化工生产的 P0P36/28、 P0P93/28、 P0P40 (市售产品) 中的一种或多种。
A组份中的交联剂可以选择甘油、三羟甲基丙垸、 季戊四醇、三乙醇胺、 二乙醇 胺中的一种或一种以上的混合物, 扩链剂选择 3, 3-二氯 4, 4-二苯基甲苯二胺、 3, 5 - 二甲硫基甲苯二胺、 3, 5-二乙基甲苯二胺、 乙二醇、 丙二醇、 1, 4-丁二醇、 一缩二 乙二醇、 一缩二丙二醇、 1, 3-戊二醇中的一种或一种以上的混合物, 优选 1, 4-丁二 醇。 在 A组份中也可以交联剂和扩链剂的组份都同时选择使用, 选择所述物质中的 一种或一种以上。
A 组份中的泡沫稳定剂为有机硅表面活性剂, 优选美国气体化工产品有限公司 DC3043 (市售产品) 或上海高施米特化工有限公司 8444 (市售产品)。
A 组份中的催化剂为有机锡类催化剂和叔胺类催化剂, 优选二月桂酸二丁基锡 (T-12 ) ,三亚乙基二胺 (A- 33 ), 双 (二甲氨基乙基) 醚 (A- 1 ), 和延迟平衡催化 剂 (C-225 ) 中的一种或多种。 发泡剂为一氟二氯乙烷 (HCFC - 141B)。
B组份中聚醚多元醇采用数均分子量为 6000〜8000, 官能度为 3, 不饱和度
0. 008meq/g, 伯羟基质量含量 75%以上的聚醚多元醇。
B组份中的小分子醇为 1, 4-丁二醇、 2-甲基 1, 3-丙二醇、 一缩二乙二醇、 一縮 二丙二醇、 1, 3-戊二醇中的一种或一种以上的混合物。 优选的用量为 B组份原料用 量的 5%〜10%。
B组份中的异氰酸酯为 4, 4-二苯基甲烷二异氰酸酯或炭化二亚胺改性的异氰酸 酯。
本发明的优点:
用本发明的组合物制备的聚氨酯发泡轮胎具有优异的力学性能、 良好的回弹性 和较高的表皮硬度。
具体实施方式
以下结合实施例具体说明本发明。
实施例 1 :
分别称取聚醚多元醇 (EP-330NG, 山东蓝星东大化学有限公司产品) 85kg, 聚 合物多元醇(P0P36/28, 山东蓝星东大化学有限公司产品) 15kg, 1,4-丁二醇 12kg, 乙二醇 7kg,甘油 lkg,有机硅匀泡剂 8444(上海高施米特化工有限公司产品) 0. 2kg, 叔胺类和有机锡类催化剂 (A- 33和 T-12 )分别为 0. 20kg和 0. 18kg,发泡剂 HCFC- 141B 12kg, 置于反应釜中, 于 25°C下充分混合均匀后, 出料, 密封保存。
称取聚醚多元醇 (EP- 3600, 山东蓝星东大化学有限公司产品) 33. 45kg, 一缩 二丙二醇 1. 76kg置于反应釜中, 升温至 100〜110°C下真空 (- 0. 09MPa) 脱水 1. 5〜 2小时,然后降温至 30〜50°C,加入 61. 62kg的 4, 4-二苯基甲烷二异氰酸酯(纯 MDI), 缓慢升温至 80〜85'C下保温反应 1. 5〜2小时, 加入 3. 17kg炭化二亚胺改性的 MDI, 搅拌 0. 5小时, 取样检测, -NC0的质量含量 19. 8%, 降温至 40°C出料, 密封保存。
使用时, 将 A组份温度维持在 25〜30°C, B组份温度维持在 30〜40°C, A、 B料 按 100: 90的重量比快速混合均匀, 离心浇注至模具既得聚氨酯微孔弹性体轮胎。 实施例 2:
分别称取聚醚多元醇 (EP- 3600, 山东蓝星东大化学有限公司产品) 70kg, 聚合 物多元醇 (P0P36/28 , 山东东大化学有限公司产品) 30kg, 1,4-丁二醇 10kg, 乙二 醇 7kg, 一缩二丙二醇 2kg, 甘油 lkg, 有机硅匀泡剂 DC3043 (美国气体化工产品有 限公司产品) 0. 2kg,叔胺类和有机锡类催化剂 (A- 33和 T- 12 )分别为 0. 3kg和 0. 08kg, 物理发泡剂 HCFC- 141B 12kg, 置于反应釜中, 于 25°C下充分混合均匀后, 出料, 密 封保存。
称取聚醚多元醇 (EP- 3600, 山东蓝星东大化学有限公司产品) 33. 67kg , —缩 二丙二醇 2. 53kg置于反应釜中, 升温至 100〜110°C下真空 (- 0. 09MPa)脱水 1. 5~2 小时,然后降温至 30〜50°C ,加入 60. 54kg的 4, 4 -二苯基甲烷二异氰酸酯(纯 MDI), 缓慢升温至 80〜85°C下保温反应 1. 5〜2小时, 加入 3. 26kg炭化二亚胺改性的 MDI, 搅拌 0. 5小时, 取样检测, - NC0的质量含量 19. 0%,降温至 40°C出料, 密封保存。
使用时, 将 A组份温度维持在 25〜30°C, B组份温度维持在 30〜40°C, A、 B料 按 100: 90的重量比快速混合均匀, 离心浇注至模具既得聚氨酯微孔弹性体轮胎。 对比例 1 :
A料采用实施例 1的配方, B料采用旭川化学鞋底原液料 B8090。
对比例 2:
A料采用实施例 1的配方, B料采用亨斯迈鞋底原液料 SUPRASEC2614。
实施例及对比例制品物理性能比较见下表:
Figure imgf000005_0001
由上表测试数据可以看出,本发明制备的微孔弹性体组合料性能优异,可以取代聚 酯型鞋底原液制备聚氨酯微孔弹性体轮胎。

Claims

权 利 要 求 书
1、 一种用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物, 其特征在于, 由 A组份与 B 组份组成, 其中:
(1) A组份由聚醚多元醇、 聚合物多元醇、 交联剂或 /和扩链剂、 泡沫稳定剂、 催化剂 和发泡剂混合而成, 以聚醚多元醇和聚合物多元醇总重量为 100%计, 聚醚多元醇为 60〜 90%, 聚合物多元醇为 10〜40%, 其它组份占聚醚多元醇和聚合物多元醇总重量的百分数分 别为: 交联剂或 /和扩链剂 10〜25%, 泡沫稳定剂 0. 2〜2. 5%, 催化剂 0. 03〜1. 0%, 发泡剂 0. 01〜10%;
(2) B组份为醇改性的异氰酸酯, - NC0的质量含量在 18. 0%〜20. 0%之间,原料组成为, 以重量百分数计:
聚醚多元醇: 20〜40%
小分子醇: 0〜10%
异氰酸酯: 50〜70%;
(3)将 A组份与 B组份按 100: 70〜100的重量比例混合,用于聚氨酯发泡轮胎的制备。
2、根据权利要求 1所述的用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物,其特征在 于,所述 A组份中聚醚多元醇为高伯羟基含量、低不饱和度聚醚多元醇,数均分子量 5000〜 8000, 官能度 2〜3, 伯羟基质量含量 65%, 不饱和度 0. 008meq/g。
3、根据权利要求 1所述的用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物,其特征在 于, 所述 A组份中聚合物多元醇为苯乙烯-丙烯腈接枝改性的聚醚多元醇。
4、根据权利要求 1所述的用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物,其特征在 于, 所述 A组份中的交联剂为甘油、 三羟甲基丙垸、 季戊四醇、 三乙醇胺、 二乙醇胺中的 一种或一种以上的混合物,扩链剂为 3, 3-二氯 4, 4-二苯基甲苯二胺、 3, 5-二甲硫基甲苯二 胺、 3, 5-二乙基甲苯二胺、 乙二醇、 丙二醇、 1, 4-丁二醇、 一縮二乙二醇、 一缩二丙二醇、 1, 3-戊二醇中的一种或一种以上的混合物。
5、根据权利要求 1所述的用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物,其特征在 于,所述 A组份中的泡沫稳定剂为有机硅表面活性剂,催化剂为有机锡类催化剂或 /和叔胺 类催化剂, 发泡剂为一氟二氯乙垸。
6、根据权利要求 5所述的用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物,其特征在 于, 所述催化剂选择二月桂酸二丁基锡、 三亚乙基二胺、 双 (二甲氨基乙基) 醚和延迟平 衡催化剂中的一种或一种以上。
7、根据权利要求 1所述的用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物,其特征在 于所述 B 组份中聚醚多元醇采用数均分子量为 6000〜8000, 官能度为 3, 不饱和度
0. 008meq/g, 伯羟基质量含量 75%以上的聚醚多元醇。
8、根据权利要求 1所述的用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物,其特征在 于, 所述 B组份中的小分子醇为 1, 4-丁二醇、 2-甲基 1, 3-丙二醇、 一缩二乙二醇、 一缩二 丙二醇、 1, 3-戊二醇中的一种或一种以上的混合物。
9、根据权利要求 1所述的用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物, 其特征在 于, 所述 B组份中的小分子醇用量为 5〜10%。
10、根据权利要求 1所述的用于聚氨酯发泡轮胎的自结皮微孔弹性体组合物,其特征在于, 所述 B组份中的异氰酸酯为 4, 4-二苯基甲烷二异氰酸酯或炭化二亚胺改性的异氰酸酯。
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CN1428359A (zh) * 2001-12-27 2003-07-09 中国科学院山西煤炭化学研究所 一种聚醚基聚氨酯微孔弹性体的制备方法
CN101165094A (zh) * 2007-09-29 2008-04-23 山东东大一诺威聚氨酯有限公司 适用于鞋垫用的聚氨酯微孔弹性体组合料及其制备方法
CN101781454A (zh) * 2009-12-25 2010-07-21 山东东大一诺威聚氨酯有限公司 一种低硬度聚氨酯弹性体组合物

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107312153A (zh) * 2017-07-18 2017-11-03 上海鸿得聚氨酯有限公司 一种改性热塑性聚氨酯弹性体及其制备方法
CN111484728A (zh) * 2020-05-11 2020-08-04 泉州市华登新材料科技有限公司 鞋底材料及其制备方法、鞋制品
CN115746255A (zh) * 2022-11-24 2023-03-07 中铁十五局集团第四工程有限公司 一种适用于深大竖井的新型防水材料及其制备方法和应用
CN115850639A (zh) * 2022-11-24 2023-03-28 中铁十五局集团第四工程有限公司 一种适用于装配式竖井支护的新型背后填充材料及其制备方法和应用

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