WO2018132959A1 - Mono-component formed-in-place foam gasket all-plastic runway elastic layer and preparation method therefor - Google Patents

Mono-component formed-in-place foam gasket all-plastic runway elastic layer and preparation method therefor Download PDF

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Publication number
WO2018132959A1
WO2018132959A1 PCT/CN2017/071474 CN2017071474W WO2018132959A1 WO 2018132959 A1 WO2018132959 A1 WO 2018132959A1 CN 2017071474 W CN2017071474 W CN 2017071474W WO 2018132959 A1 WO2018132959 A1 WO 2018132959A1
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elastic layer
isocyanate
layer according
plasticizer
polyether polyol
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PCT/CN2017/071474
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French (fr)
Chinese (zh)
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赵文海
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江门市长河化工实业集团有限公司
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Priority to PCT/CN2017/071474 priority Critical patent/WO2018132959A1/en
Priority to CN201780001887.8A priority patent/CN108064254A/en
Publication of WO2018132959A1 publication Critical patent/WO2018132959A1/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4825—Polyethers containing two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4829—Polyethers containing at least three hydroxy groups
    • 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
    • C08J9/12—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
    • 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
    • C08J9/12—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
    • C08J9/142—Compounds containing oxygen but no halogen atom
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/541—Silicon-containing compounds containing oxygen
    • C08K5/5425—Silicon-containing compounds containing oxygen containing at least one C=C bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/541—Silicon-containing compounds containing oxygen
    • C08K5/5435—Silicon-containing compounds containing oxygen containing oxygen in a ring
    • 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
    • C08L75/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • C09J175/08—Polyurethanes from polyethers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/06—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003
    • 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
    • C08J2203/12—Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
    • 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
    • C08J2375/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium

Definitions

  • Full-component runway elastic layer formed by single component in-situ foaming and preparation method thereof
  • the invention belongs to the field of all-plastic plastic track materials, and particularly relates to a one-component in-situ foamed full-plastic track elastic layer and a preparation method thereof.
  • the existing ventilated runway materials are made of granules and granules.
  • the impact absorption and vertical deformation are not up to the requirements of the new national standard.
  • the mixed runway often has a large odor after construction, which affects the athlete's health.
  • the rigid polyurethane foam insulation material is a foamed material obtained by addition polymerization and foaming under the action of a catalyst and a foaming agent, using a polyvalent hydroxy compound and an isocyanate as main raw materials.
  • Rigid polyurethane foams have excellent physical and mechanical properties, electrical properties, acoustic properties and chemical resistance.
  • the present invention provides a one-component in-situ foamed full-plastic track elastic layer, which has a good micro-balloon structure and has strong and rapid resilience. Strong shock absorption and vertical deformation
  • the technical solution of the present invention is a one-component in-situ foam-formed all-plastic runway elastic layer, which is calculated by weight percentage and consists of the following materials:
  • Plasticizer 8.0-12.0%
  • the polyether polyol is a polyether polyol having a functionality of 2-3;
  • the isocyanate is an isocyanate having a functionality of 2-3, the polyether polyol, the filler and the plasticizer are required to be heated before being mixed with other raw materials. Dehydration.
  • the isocyanate is selected from any one of diphenylmethane diisocyanate and toluene isocyanate.
  • the filler is at least one selected from the group consisting of mica powder, talc powder, silica fume powder or calcium carbonate.
  • silane coupling agent is selected from the group consisting of vinyl triethoxysilane, vinyl trimethoxysilane or ⁇ - At least one of glycidyloxypropyltrimethoxysilane.
  • the plasticizer is at least one selected from the group consisting of epoxidized soybean oil and palm oil plasticizer.
  • the flame retardant is at least one selected from the group consisting of aluminum hydroxide and magnesium hydroxide.
  • the anti-aging agent is selected from at least one of a light stabilizer, an ultraviolet absorber, an antioxidant, or a hydrolysis stabilizer.
  • blowing agent is dimethyl ether.
  • the invention also provides a method for preparing a one-component in-situ foamed full-plastic track elastic layer, which is weighed and dehydrated by polyether polyol, filler, flame retardant and plasticizer, and dehydrated with isocyanate 65-70 After the reaction is carried out at °C for 3-4 hours, the amount of isocyanate in the reaction system is detected.
  • the silane coupling agent is added dropwise to the reaction system until the amount of isocyanate in the system is 5.0-5.5, then cool down to 50-55 °C, then add anti-aging agent, filter to obtain polyurethane prepolymer, and then add foaming agent, foaming by adsorption of water, 15-35 Under the construction conditions of °C, the elastic layer of the runway is formed by scraping and solidifying.
  • the thickness of the coating during the construction is 4.5-5.5 mm
  • the thickness of the elastic layer of the running track after curing is 7.0-7.5 mm.
  • the polyurethane foam is modified by a silane coupling agent to improve the foaming efficiency to achieve a better micro-balloon structural material.
  • the polyurethane foam airbag is rapidly deformed laterally by compression, and the elastic wall body is squeezed, and the powerful impact force is rapidly decomposed and converted into a reversing reverse stress to form a rapid thrust; a powerful reverse recovery by gas compression in the airbag The force is released quickly after the external pressure leaves, and recovers under the action of the wall body, thereby forming a strong and rapid resilience, providing the best impact absorption and vertical deformation for the movement.
  • test results of the elastic-type elastic layer of the full-plastic runway of the present invention are as follows: impact absorption >37.0%; vertical deformation >1.80 mm ; anti-slip value (BPN20 °C) > 50; tensile strength > 1.10MPa; elongation at break > 80.0; flame retardancy: 1 grade.
  • the present invention firstly requires the polyether polyol to first react with the isocyanate and then graft the silane onto the isocyanate group. If the silane coupling agent reacts with the polyether polyol or the isocyanate, the silane coupling agent will first react with the isocyanate and will be directly blocked, and the polyurethane foamed material can not be produced.
  • the antioxidant is further cooled and filtered to obtain polyurethane; then, 0.5 kg of dimethyl ether is added to foam at room temperature to obtain the polyurethane foam, which is uniformly dispersed after foaming, and the thickness of the coating is 5.5 mm. .
  • the elastic layer obtained in the examples 1-4 is made into a fully plastic plastic track, and then tested.
  • the test results are as follows:
  • Example 1 Shock absorption Vertical deformation Anti-slip value (BPN20 °C) Tensile Strength Elongation at break Flame retardant level
  • Example 1 42.2% 2.23mm 54 1.23MPa 92.3% 1
  • Example 2 40.5% 2.04 mm 53 1.25 MPa 89.2% 1
  • Example 3 38.3% 1.86 mm 55 1.15 MPa 105.8% 1
  • Example 4 37.3% 2.31 mm 53 1.13 MPa 104.3% 1

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Disclosed is a mono-component formed-in-place foam gasket all-plastic runway elastic layer, comprising polyether glycol and isocyanate. The functionality of polyether glycol and isocyanate is 2 to 3. According to the present invention, the shock absorption is 37.3%-42.2%, the vertical deformation is 1.86-2.31 mm, a sliding-resistance value is 53-55, the tensile strength is 1.13-1.25 MPa, the elongation at break is 89.2-105.8%, and the flame resistance is of first level.

Description

一种单组份现场发泡成型的全塑型跑道弹性层及其制备方法  Full-component runway elastic layer formed by single component in-situ foaming and preparation method thereof 一种单组份现场发泡成型的全塑型跑道弹性层及其制备方法  Full-component runway elastic layer formed by single component in-situ foaming and preparation method thereof
技术领域 Technical field
本发明属于全塑型塑胶跑道材料领域，具体涉及一种单组份现场发泡成型的全塑型跑道弹性层及其制备方法。 The invention belongs to the field of all-plastic plastic track materials, and particularly relates to a one-component in-situ foamed full-plastic track elastic layer and a preparation method thereof.
背景技术 Background technique
现有的透气式跑道材料使用颗粒铺设和颗粒喷涂而成，冲击吸收和垂直变形都达不到新国标的要求；而混合型跑道往往施工完毕后还残留着较大的气味，影响运动员的健康。硬质聚氨酯泡沫保温材料是以多元羟基化合物和异氰酸酯为主要原料，在催化剂、发泡剂作用下，经加成聚合、发泡而成的泡沫材料。硬质聚氨酯泡沫材料具有优良的物理机械性能、电学性能、声学性能及耐化学腐蚀性。但是，目前还未见将聚氨酯泡沫用于制作塑胶跑道弹性层的报道。 The existing ventilated runway materials are made of granules and granules. The impact absorption and vertical deformation are not up to the requirements of the new national standard. The mixed runway often has a large odor after construction, which affects the athlete's health. . The rigid polyurethane foam insulation material is a foamed material obtained by addition polymerization and foaming under the action of a catalyst and a foaming agent, using a polyvalent hydroxy compound and an isocyanate as main raw materials. Rigid polyurethane foams have excellent physical and mechanical properties, electrical properties, acoustic properties and chemical resistance. However, there have been no reports of using polyurethane foam for the elastic layer of plastic track.
发明内容 Summary of the invention
为解决现有塑胶跑道弹性层存在的问题，本发明提供了一种单组份现场发泡成型的全塑型跑道弹性层，该弹性层具有良好的微气囊结构，具有强劲迅速的回弹力，冲击吸收和垂直变形性能强 In order to solve the problems existing in the elastic layer of the existing plastic track, the present invention provides a one-component in-situ foamed full-plastic track elastic layer, which has a good micro-balloon structure and has strong and rapid resilience. Strong shock absorption and vertical deformation
为了解决上述技术问题，本发明的技术方案为一种单组份现场发泡成型的全塑型跑道弹性层，按重量百分比计算，由以下原料组成： In order to solve the above technical problem, the technical solution of the present invention is a one-component in-situ foam-formed all-plastic runway elastic layer, which is calculated by weight percentage and consists of the following materials:
聚醚多元醇 30.0-34.0%； Polyether polyol 30.0-34.0%;
异氰酸酯 10.0-14.0%； Isocyanate 10.0-14.0%;
填料 33.0-37.0%； Filler 33.0-37.0%;
硅烷偶联剂 0.5-1.5%； Silane coupling agent 0.5-1.5%;
增塑剂 8.0-12.0%； Plasticizer 8.0-12.0%;
阻燃剂 9.0-11.0%； Flame retardant 9.0-11.0%;
抗老化剂 0.5-0.8%； Anti-aging agent 0.5-0.8%;
发泡剂 0.2-0.5%； Foaming agent 0.2-0.5%;
其中，聚醚多元醇为官能度为2-3的聚醚多元醇；异氰酸酯为官能度为2-3的异氰酸酯，聚醚多元醇、填料以及增塑剂在与其他原料混合前均需进行高温脱水。 Wherein, the polyether polyol is a polyether polyol having a functionality of 2-3; the isocyanate is an isocyanate having a functionality of 2-3, the polyether polyol, the filler and the plasticizer are required to be heated before being mixed with other raw materials. Dehydration.
进一步，所述异氰酸酯选自二苯基甲烷二异氰酸酯、甲苯异氰酸酯中任一种。 Further, the isocyanate is selected from any one of diphenylmethane diisocyanate and toluene isocyanate.
进一步，所述填料选自云母粉、滑石粉、硅灰粉或碳酸钙中至少一种。 Further, the filler is at least one selected from the group consisting of mica powder, talc powder, silica fume powder or calcium carbonate.
进一步， 硅烷偶联剂选自乙烯基三乙氧基硅烷、乙烯基三甲氧基硅烷或 γ - 缩水甘油氧丙基三甲氧基硅烷中至少一种 。 Further, the silane coupling agent is selected from the group consisting of vinyl triethoxysilane, vinyl trimethoxysilane or γ - At least one of glycidyloxypropyltrimethoxysilane.
进一步， 增塑剂选自环氧大豆油、棕榈油增塑剂中至少一种 。 Further, the plasticizer is at least one selected from the group consisting of epoxidized soybean oil and palm oil plasticizer.
进一步，阻燃剂选自 氢氧化铝、氢氧化镁中至少一种。 Further, the flame retardant is at least one selected from the group consisting of aluminum hydroxide and magnesium hydroxide.
进一步，抗老化剂选自光稳定剂、紫外线吸收剂、抗氧化剂或者水解稳定剂中至少一种。 Further, the anti-aging agent is selected from at least one of a light stabilizer, an ultraviolet absorber, an antioxidant, or a hydrolysis stabilizer.
进一步，发泡剂为二甲醚。 Further, the blowing agent is dimethyl ether.
本发明还提供一种单组份现场发泡成型的全塑型跑道弹性层的制备方法，按比例称取聚醚多元醇、填料、阻燃剂、增塑剂进行脱水，脱水后与异氰酸酯在 65-70 ℃反应，反应 3-4 小时后检测反应体系中的异氰酸根数量，当异氰酸根数量为 7.0-7.5 时，向反应体系中滴加硅烷偶联剂直至体系中异氰酸根数量为 5.0-5.5 ，接着降温至 50-55 ℃，然后添加抗老化剂，降温过滤得到聚氨酯预聚体，再加入发泡剂，通过吸附水分进行发泡成型，在 15-35 ℃的施工条件下再经过刮涂、固化即形成跑道弹性层。 The invention also provides a method for preparing a one-component in-situ foamed full-plastic track elastic layer, which is weighed and dehydrated by polyether polyol, filler, flame retardant and plasticizer, and dehydrated with isocyanate 65-70 After the reaction is carried out at °C for 3-4 hours, the amount of isocyanate in the reaction system is detected. When the amount of isocyanate is 7.0-7.5, the silane coupling agent is added dropwise to the reaction system until the amount of isocyanate in the system is 5.0-5.5, then cool down to 50-55 °C, then add anti-aging agent, filter to obtain polyurethane prepolymer, and then add foaming agent, foaming by adsorption of water, 15-35 Under the construction conditions of °C, the elastic layer of the runway is formed by scraping and solidifying.
进一步，施工时涂刮厚度为 4.5-5.5mm ，固化后跑道弹性层的厚度为 7.0-7.5mm 。 Further, the thickness of the coating during the construction is 4.5-5.5 mm, and the thickness of the elastic layer of the running track after curing is 7.0-7.5 mm.
采用上述技术方案，聚氨酯泡沫通过硅烷偶联剂改性聚氨酯提高发泡效率达到较好的微气囊结构材料。该聚氨酯泡沫的气囊迅速受压横向变形，并挤压弹性壁体，将强大的冲击力迅速分解并转化为复原反向应力，形成迅速的推力；气囊内气体受压所形成的强大反向复原力在外压离开后迅速释放，在壁体作用下复原，从而形成强劲迅速的回弹力，为运动提供最佳的冲击吸收和垂直变形。 By adopting the above technical scheme, the polyurethane foam is modified by a silane coupling agent to improve the foaming efficiency to achieve a better micro-balloon structural material. The polyurethane foam airbag is rapidly deformed laterally by compression, and the elastic wall body is squeezed, and the powerful impact force is rapidly decomposed and converted into a reversing reverse stress to form a rapid thrust; a powerful reverse recovery by gas compression in the airbag The force is released quickly after the external pressure leaves, and recovers under the action of the wall body, thereby forming a strong and rapid resilience, providing the best impact absorption and vertical deformation for the movement.
本发明的全塑型跑道弹性层经检测结果如下：冲击吸收 >37.0% ；垂直变形 >1.80mm ；抗滑值（ BPN20 ℃ ) >50 ；拉伸强度 >1.10MPa ；拉断伸长率 >80.0 ；阻燃性： 1 级。 The test results of the elastic-type elastic layer of the full-plastic runway of the present invention are as follows: impact absorption >37.0%; vertical deformation >1.80 mm ; anti-slip value (BPN20 °C) > 50; tensile strength > 1.10MPa; elongation at break > 80.0; flame retardancy: 1 grade.
具体实施方式 detailed description
下面对本发明的具体实施方式作进一步说明。在此需要说明的是，对于这些实施方式的说明用于帮助理解本发明，但并不构成对本发明的限定。此外，下面所描述的本发明各个实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互组合。 Specific embodiments of the invention are further described below. It is to be noted that the description of the embodiments is intended to facilitate the understanding of the invention, but is not intended to limit the invention. Further, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
本发明首先要聚醚多元醇先与异氰酸酯反应，然后再把硅烷接枝到异氰酸基团上。如果硅烷偶联剂与聚醚多元醇、异氰酸酯一起反应，那硅烷偶联剂会先与异氰酸酯反应，会直接封端了，制备不出聚氨酯发泡材料。 The present invention firstly requires the polyether polyol to first react with the isocyanate and then graft the silane onto the isocyanate group. If the silane coupling agent reacts with the polyether polyol or the isocyanate, the silane coupling agent will first react with the isocyanate and will be directly blocked, and the polyurethane foamed material can not be produced.
实施例 1 Example 1
称取上述的 18kg 聚醚二元醇、 12kg 聚醚三元醇、 33kg 滑石粉、 10kg 氢氧化铝与 11kg 增塑剂进行高温脱水，然后再与 12kg 二苯基甲烷二异氰酸酯在 70 ℃进行反应，反应 4 小时，然后检测反应体系中的异氰酸根数量，当异氰酸根数量为 7.0 时，再向反应体系中滴加 1.2kg γ - 缩水甘油氧丙基三甲氧基硅烷，测得体系中异氰酸根数量为 5.0 ，再降温至 50-55 ℃，然后添加 0.2kg 抗老化剂、 0.3kg 紫外线吸收剂，再降温过滤包装得到聚氨酯；然后在施工时在常温下加入 0.3kg 二甲醚进行发泡得到所述的聚氨酯泡沫，发泡后分散均匀进行刮涂，涂刮厚度在 5.5mm 。 Weigh the above 18kg polyether glycol, 12kg polyether triol, 33kg talc, 10kg aluminum hydroxide and 11kg of plasticizer is dehydrated at high temperature, and then reacted with 12kg of diphenylmethane diisocyanate at 70 °C for 4 hours, and then the amount of isocyanate in the reaction system is detected. When the amount of isocyanate is At 7.0, 1.2 kg of γ-glycidoxypropyltrimethoxysilane was added dropwise to the reaction system, and the amount of isocyanate in the system was measured to be 5.0, and then the temperature was lowered to 50-55 ° C, and then added. 0.2kg anti-aging agent, 0.3kg UV absorber, and then cooled and filtered to obtain polyurethane; then add 0.3kg at room temperature during construction The dimethyl ether was foamed to obtain the polyurethane foam, which was uniformly dispersed after foaming, and the thickness of the coating was 5.5 mm.
实施例 2 Example 2
称取上述的 22kg 聚醚二元醇、 10kg 聚醚三元醇、 34kg 石英粉、 10kg 氢氧化镁与 12kg 增塑剂进行高温脱水，然后再与 10kg 二苯基甲烷二异氰酸酯在 65 ℃进行反应，反应 4 小时，然后检测反应体系中的异氰酸根数量，当异氰酸根数量为 7.5 时，再向反应体系中滴加 0.8kg 乙烯基三乙氧基硅烷，测得体系中异氰酸根数量为 5.0 ，再降温至 50-55 ℃，然后添加 0.4kg 抗氧化剂、 0.4kg 紫外线吸收剂，再降温过滤包装得到聚氨酯；然后在施工时在常温下加入 0.4kg 二甲醚进行发泡得到所述的聚氨酯泡沫，发泡后分散均匀进行刮涂，涂刮厚度在 5.0mm 。 Weigh the above 22kg polyether glycol, 10kg polyether triol, 34kg quartz powder, 10kg magnesium hydroxide and 12kg of plasticizer is dehydrated at high temperature, and then reacted with 10kg of diphenylmethane diisocyanate at 65 °C for 4 hours, and then the amount of isocyanate in the reaction system is detected. When the amount of isocyanate is At 7.5, 0.8 kg of vinyltriethoxysilane was added dropwise to the reaction system, and the amount of isocyanate in the system was measured to be 5.0, and then the temperature was lowered to 50-55 ° C, and then 0.4 kg of an antioxidant was added. 0.4kg UV absorber, and then cooled and filtered to obtain polyurethane; then add 0.4kg at room temperature during construction. The dimethyl ether was foamed to obtain the polyurethane foam, which was uniformly dispersed after foaming, and the thickness of the coating was 5.0 mm.
实施例 3 Example 3
称取上述的 22kg 聚醚二元醇、 12kg 聚醚三元醇、 34kg 石英粉、 9kg 氢氧化铝与 9kg 增塑剂进行高温脱水，然后再与 12kg 甲苯异氰酸酯在 65 ℃进行反应，反应 3 小时，然后检测反应体系中的异氰酸根数量，当异氰酸根数量为 7.5 时，再向反应体系中滴加 0.9kg 乙烯基三乙氧基硅烷，测得体系中异氰酸根数量为 5.5 ，再降温至 50-55 ℃，然后添加 0.4kg 抗氧化剂、 0.4kg 紫外线吸收剂，再降温过滤包装得到聚氨酯；然后在施工时在常温下加入 0.3kg 二甲醚进行发泡得到所述的聚氨酯泡沫，发泡后分散均匀进行刮涂，涂刮厚度在 4.5mm 。 Weigh the above 22kg polyether glycol, 12kg polyether triol, 34kg quartz powder, 9kg aluminum hydroxide and 9kg The plasticizer is dehydrated at a high temperature, and then reacted with 12 kg of toluene isocyanate at 65 ° C for 3 hours, and then the amount of isocyanate in the reaction system is detected, when the amount of isocyanate is 7.5. At the same time, 0.9 kg of vinyltriethoxysilane was added dropwise to the reaction system, and the amount of isocyanate in the system was measured to be 5.5, and then the temperature was lowered to 50-55 ° C, and then 0.4 kg of an antioxidant was added. 0.4kg UV absorber, and then cooled and filtered to obtain polyurethane; then add 0.3kg at room temperature during construction. The dimethyl ether was foamed to obtain the polyurethane foam, which was uniformly dispersed after foaming, and the thickness of the coating was 4.5 mm.
实施例 4 Example 4
称取上述的 32kg 聚醚三元醇、 33kg 硅灰粉、 6kg 氢氧化铝、 5kg 氢氧化镁与 8kg 棕榈油进行高温脱水，然后再与 14kg 甲苯异氰酸酯在 65 ℃进行反应，反应 3 小时，然后检测反应体系中的异氰酸根数量，当异氰酸根数量为 7.5 时，再向反应体系中滴加 0.5kg 乙烯基三乙氧基硅烷，测得体系中异氰酸根数量为 5.5 ，再降温至 50-55 ℃，然后添加 0.6kg 抗氧化剂，再降温过滤包装得到聚氨酯；然后在施工时在常温下加入 0.5kg 二甲醚进行发泡得到所述的聚氨酯泡沫，发泡后分散均匀进行刮涂，涂刮厚度在 5.5mm 。 Weigh the above 32kg polyether triol, 33kg silica fume, 6kg aluminum hydroxide, 5kg magnesium hydroxide and 8kg Palm oil is dehydrated at a high temperature, and then reacted with 14 kg of toluene isocyanate at 65 ° C for 3 hours, and then the amount of isocyanate in the reaction system is detected. When the amount of isocyanate is 7.5 At the same time, 0.5 kg of vinyltriethoxysilane was added dropwise to the reaction system, and the amount of isocyanate in the system was measured to be 5.5, and then the temperature was lowered to 50-55 ° C, and then 0.6 kg was added. The antioxidant is further cooled and filtered to obtain polyurethane; then, 0.5 kg of dimethyl ether is added to foam at room temperature to obtain the polyurethane foam, which is uniformly dispersed after foaming, and the thickness of the coating is 5.5 mm. .
将实施例 1-4 所得弹性层制作成全塑型塑胶跑道，然后进行检测，具体测量方法参见 GB/T14833-2011 ，检测结果如下： The elastic layer obtained in the examples 1-4 is made into a fully plastic plastic track, and then tested. For the specific measurement method, see GB/T14833-2011, the test results are as follows:
表 1 性能测试数据 Table 1 Performance test data
冲击吸收 Shock absorption 垂直变形 Vertical deformation 抗滑值（ BPN20 ℃ ) Anti-slip value (BPN20 °C) 拉伸强度 Tensile Strength 拉断伸长率 Elongation at break 阻燃级别 Flame retardant level
实施例 1 Example 1 42.2% 42.2% 2.23mm 2.23mm 54 54 1.23MPa 1.23MPa 92.3% 92.3% 1 1
实施例 2 Example 2 40.5% 40.5% 2.04 mm 2.04 mm 53 53 1.25 MPa 1.25 MPa 89.2% 89.2% 1 1
实施例 3 Example 3 38.3% 38.3% 1.86 mm 1.86 mm 55 55 1.15 MPa 1.15 MPa 105.8% 105.8% 1 1
实施例 4 Example 4 37.3% 37.3% 2.31 mm 2.31 mm 53 53 1.13 MPa 1.13 MPa 104.3% 104.3% 1 1
从表 1 中可以看出，实施例 1-4 所制备的弹性层用于全塑型塑胶跑道完全符合国家标准要求。 As can be seen from Table 1, the elastic layers prepared in Examples 1-4 were used in the fully plasticized plastic track to fully comply with national standards.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are included in the spirit and scope of the present invention, should be included in the present invention. Within the scope of protection.

Claims (10)

  1. 一种单组份现场发泡成型的全塑型跑道弹性层，其特征在于，按重量百分比计算，由以下原料组成： The utility model relates to a one-component in-situ foamed plasticized track elastic layer, which is characterized by weight percentage, and is composed of the following materials:
    聚醚多元醇 30.0-34.0%；Polyether polyol 30.0-34.0%;
    异氰酸酯 10.0-14.0%；Isocyanate 10.0-14.0%;
    填料 33.0-37.0%；Filler 33.0-37.0%;
    硅烷偶联剂 0.5-1.5%；Silane coupling agent 0.5-1.5%;
    增塑剂 8.0-12.0%；Plasticizer 8.0-12.0%;
    阻燃剂 9.0-11.0%；Flame retardant 9.0-11.0%;
    抗老化剂 0.5-0.8%；Anti-aging agent 0.5-0.8%;
    发泡剂 0.2-0.5%；Foaming agent 0.2-0.5%;
    其中，所述聚醚多元醇为官能度为2-3的聚醚多元醇；所述异氰酸酯为官能度为2-3的异氰酸酯，所述聚醚多元醇、填料以及增塑剂在与其他原料混合前均需进行高温脱水。 Wherein the polyether polyol is a polyether polyol having a functionality of 2-3; the isocyanate is an isocyanate having a functionality of 2-3, the polyether polyol, a filler and a plasticizer are in combination with other materials High temperature dehydration is required before mixing.
  2. 根据权利要求1所述的全塑型跑道弹性层，其特征在于，所述异氰酸酯选自二苯基甲烷二异氰酸酯、甲苯异氰酸酯中任一种。The all-plastic track elastic layer according to claim 1, wherein the isocyanate is selected from any one of diphenylmethane diisocyanate and toluene isocyanate.
  3. 根据权利要求1所述的全塑型跑道弹性层，其特征在于，所述填料选自云母粉、滑石粉、硅灰粉或碳酸钙中至少一种。The elastic molding track elastic layer according to claim 1, wherein the filler is at least one selected from the group consisting of mica powder, talc powder, silica fume powder, and calcium carbonate.
  4. 根据权利要求1所述的全塑型跑道弹性层，其特征在于，所述硅烷偶联剂选自乙烯基三乙氧基硅烷、乙烯基三甲氧基硅烷或γ-缩水甘油氧丙基三甲氧基硅烷中至少一种。The elastic molding track elastic layer according to claim 1, wherein the silane coupling agent is selected from the group consisting of vinyl triethoxysilane, vinyl trimethoxysilane or γ-glycidoxypropyltrimethoxy. At least one of the silanes.
  5. 根据权利要求1所述的全塑型跑道弹性层，其特征在于，所述增塑剂选自环氧大豆油、棕榈油增塑剂中至少一种。The all-plastic track elastic layer according to claim 1, wherein the plasticizer is at least one selected from the group consisting of epoxidized soybean oil and palm oil plasticizer.
  6. 根据权利要求1所述的全塑型跑道弹性层，其特征在于，所述阻燃剂选自氢氧化铝、氢氧化镁中至少一种。The all-plastic track elastic layer according to claim 1, wherein the flame retardant is at least one selected from the group consisting of aluminum hydroxide and magnesium hydroxide.
  7. 根据权利要求1所述的全塑型跑道弹性层，其特征在于，所述抗老化剂选自光稳定剂、紫外线吸收剂、抗氧化剂或者水解稳定剂中至少一种。The all-plastic track elastic layer according to claim 1, wherein the anti-aging agent is at least one selected from the group consisting of a light stabilizer, an ultraviolet absorber, an antioxidant, and a hydrolysis stabilizer.
  8. 根据权利要求1所述的全塑型跑道弹性层，其特征在于，所述发泡剂为二甲醚。The all-plastic track elastic layer according to claim 1, wherein the foaming agent is dimethyl ether.
  9. 一种权利要求1所述单组份现场发泡成型的全塑型跑道弹性层的制备方法，其特征在于，按比例称取聚醚多元醇、填料、阻燃剂、增塑剂进行脱水，脱水后与异氰酸酯在65-70℃反应，反应3-4小时后检测反应体系中的异氰酸根数量，当异氰酸根数量为7.0-7.5时，向反应体系中滴加硅烷偶联剂直至体系中异氰酸根数量为5.0-5.5，接着降温至50-55℃，然后添加抗老化剂，降温过滤得到聚氨酯预聚体，再加入发泡剂，通过吸附水分进行发泡成型，在15-35℃的施工条件下再经过刮涂、固化即形成跑道弹性层。A method for preparing a one-component in-situ foamed full-plastic track elastic layer according to claim 1, characterized in that the polyether polyol, the filler, the flame retardant and the plasticizer are weighed and dehydrated in proportion. After dehydration, it is reacted with isocyanate at 65-70 ° C. After reacting for 3-4 hours, the amount of isocyanate in the reaction system is detected. When the amount of isocyanate is 7.0-7.5, a silane coupling agent is added dropwise to the reaction system until the system The amount of medium isocyanate is 5.0-5.5, then the temperature is lowered to 50-55 ° C, then the anti-aging agent is added, the polyurethane prepolymer is obtained by cooling and filtering, and then the foaming agent is added, and the foaming is formed by adsorbing moisture, in 15-35 Under the construction conditions of °C, the elastic layer of the runway is formed by scraping and solidifying.
  10. 根据权利要求9所述的全塑型跑道弹性层的制备方法，其特征在于，施工时涂刮厚度为4.5-5.5mm，固化后跑道弹性层的厚度为7.0-7.5mm。The method for preparing a full-plastic track elastic layer according to claim 9, wherein the coating thickness during the construction is 4.5-5.5 mm, and the thickness of the elastic layer of the running track after curing is 7.0-7.5 mm.
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Publication number Priority date Publication date Assignee Title
WO2020245037A1 (en) * 2019-06-03 2020-12-10 Covestro Intellectual Property Gmbh & Co. Kg A composition for manufacturing a polyurethane foam
CN111117212A (en) * 2019-12-30 2020-05-08 杭州和诚塑胶工程有限公司 High-flame-retardant plastic track and preparation method thereof

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