CN105437683A - 一种阻燃轻质结构芯及其制备方法 - Google Patents

一种阻燃轻质结构芯及其制备方法 Download PDF

Info

Publication number
CN105437683A
CN105437683A CN201410407607.1A CN201410407607A CN105437683A CN 105437683 A CN105437683 A CN 105437683A CN 201410407607 A CN201410407607 A CN 201410407607A CN 105437683 A CN105437683 A CN 105437683A
Authority
CN
China
Prior art keywords
fiber
thermosetting resin
structural core
mixture
honeycomb
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410407607.1A
Other languages
English (en)
Inventor
杨金
李国锋
吴宏伟
姜其斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuzhou Times New Material Technology Co Ltd
Original Assignee
Zhuzhou Times New Material Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhuzhou Times New Material Technology Co Ltd filed Critical Zhuzhou Times New Material Technology Co Ltd
Priority to CN201410407607.1A priority Critical patent/CN105437683A/zh
Priority to EP14899939.4A priority patent/EP3184294A4/en
Priority to PCT/CN2014/090334 priority patent/WO2016026217A1/zh
Priority to CA2958098A priority patent/CA2958098A1/en
Publication of CN105437683A publication Critical patent/CN105437683A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0085Use of fibrous compounding ingredients
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/12Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/14Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/12Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/34Layered products comprising a layer of synthetic resin comprising polyamides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/06Interconnection of layers permitting easy separation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102Azo-compounds
    • C08J9/103Azodicarbonamide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/40Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02Composition of the impregnated, bonded or embedded layer
    • B32B2260/021Fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04Impregnation, embedding, or binder material
    • B32B2260/046Synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/101Glass fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/106Carbon fibres, e.g. graphite fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/10Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • B32B2307/3065Flame resistant or retardant, fire resistant or retardant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54Yield strength; Tensile strength
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/72Density
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/748Releasability
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00Vehicles
    • B32B2605/10Trains
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00Foams characterised by the foaming process
    • C08J2201/02Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/03Extrusion of the foamable blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00Foams characterized by the expanding agent
    • C08J2203/04N2 releasing, ex azodicarbonamide or nitroso compound
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00Characterised by the use of unspecified polymers
    • C08J2300/24Thermosetting resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2363/00Characterised by the use of epoxy resins; Derivatives of epoxy resins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明提供了一种结构芯材,包括:蜂窝状芯材;填充于蜂窝状芯材孔格内的纤维增强的热固性树脂泡沫;所述纤维增强的热固性树脂泡沫由包括热固性树脂和纤维的混合物发泡制得。本发明提供的结构芯材由蜂窝状芯材、热固性树脂和纤维制备而成,热固性树脂具有很好地阻燃性,使得结构芯材具有阻燃性能,而蜂窝状芯材、热固性树脂和纤维三者的复合结构使得结构芯材不仅重量轻而且力学性能好。实验结果表明,本发明制备得到的结构芯材压缩强度1.8MPa以上,密度110~300kg/m3,隔声量24dB以上,防火等级S4级。

Description

一种阻燃轻质结构芯及其制备方法
技术领域
本发明涉及材料技术领域,尤其涉及一种结构芯材及其制备方法。
背景技术
轨道交通正朝着高速、安全、舒适的方向快速发展,新一代列车对内饰件提出了越来越高的要求。轻量化内饰成为包括机车、飞机、船舶、汽车在内的交通运输工具的重要发展方向。轨道交通迫切需求一种既能满足内饰件防火、力学性能等要求,又极大减重的复合材料产品。
目前内饰件如顶板、侧板、地板、风道等,主要材质为玻璃钢、竹胶板、铝蜂窝板等。玻璃钢和竹胶板密度一般在1000kg/m3以上,重量过大;铝蜂窝板由于自身力学及综合性能问题,难以满足高速轨道交通的要求。而传统的泡沫结构由于存在性脆、易碎、强度低等缺点,使得其使用也受到了限制。
发明内容
有鉴于此,本发明要解决的技术问题在于提供一种结构芯材及其制备方法,本发明提供的结构芯材不仅重量轻、防火而且力学性能好。
本发明提供了一种结构芯材,包括:
蜂窝状芯材;
填充于蜂窝状芯材孔格内的纤维增强的热固性树脂泡沫;所述纤维增强的热固性树脂泡沫由包括热固性树脂和纤维的混合物发泡制得。
优选的,所述混合物还包括发泡剂。
优选的,所述混合物还包括固化剂、固化促进剂、阻燃剂、稳定剂和脱模剂中的一种或几种。
优选的,所述蜂窝状芯材的材质选自金属材质和有机材质中的一种;
所述热固性树脂选自酚醛树脂、环氧树脂、不饱和树脂、三聚氰胺树脂和聚氨酯树脂中的一种或几种;
所述纤维选自凯夫拉纤维、聚酯纤维、碳纤维和玻璃纤维中的一种或几种。
优选的,所述纤维与所述热固性树脂的重量比为10:90~80:20。
本发明提供了一种结构芯材的制备方法,包括:
热固性树脂和纤维混合,挤出,得到混合物;
将所述混合物铺覆蜂窝状芯材孔格上,热压发泡,得到结构芯材。
优选的,所述纤维与所述热固性树脂的重量比为10:90~80:20。
优选的,所述纤维长度为4mm~20mm。
优选的,所述挤出为选用双螺杆挤出机挤出。
优选的,所述热压的温度为120℃~170℃,所述热压的时间为10~40min,所述热压的压强为0.4~1Mpa。
与现有技术相比,本发明提供了一种结构芯材,包括:蜂窝状芯材;填充于蜂窝状芯材孔格内的纤维增强的热固性树脂泡沫;所述纤维增强的热固性树脂泡沫由包括热固性树脂和纤维的混合物发泡制得。本发明提供的结构芯材由蜂窝状芯材、热固性树脂和纤维制备而成,热固性树脂具有很好地阻燃性,使得结构芯材具有阻燃性能,而蜂窝状芯材、热固性树脂和纤维三者的复合结构使得结构芯材不仅重量轻而且力学性能好。实验结果表明,本发明制备得到的结构芯材压缩强度1.8MPa以上,密度110~300kg/m3,隔声量24dB以上,防火等级S4级。
具体实施方式
本发明提供了一种结构芯材,包括:
蜂窝状芯材;
填充于蜂窝状芯材孔格内的纤维增强的热固性树脂泡沫;所述纤维增强的热固性树脂泡沫由包括热固性树脂和纤维的混合物发泡制得。
本发明所述的蜂窝状芯材的材质选自金属材质和有机材质中的一种,更优选选自铝质蜂窝和芳纶质蜂窝中的一种。一般选用六边形蜂窝,也可以根据需要选择其他形状。所述蜂窝孔径优选为3~30mm,更优选为6~25mm;所述蜂窝的壁厚优选为0.05~1mm,更优选为0.1~0.5mm。
本发明所述的结构芯材包括填充于蜂窝状芯材孔格内的纤维增强的热固性树脂泡沫;所述纤维增强的热固性树脂泡沫由包括热固性树脂和纤维的混合物发泡制得。本发明所述混合物优选包括热固性树脂和发泡剂。所述热固性树脂优选选自酚醛树脂、环氧树脂、不饱和树脂、三聚氰胺树脂和聚氨酯树脂中的一种或几种;还可以选择经过阻燃改性的树脂;还可以选择低粘度树脂;如粘度为300mPs以下的树脂。本发明所述的发泡剂可以为物理或化学发泡剂,本发明对此并无限定,优选为Ac发泡剂或OBSH发泡剂。所述发泡剂倍率优选为1~10倍,更优选为2~6倍;所述发泡温度优选为60~200℃,更优选为70℃~160℃。在所述热固性树脂组合物中,发泡剂和热固性树脂的重量比优选为1:99~40:60,更优选为5:95~30:70,最优选为10:90~25:75。
本发明所述混合物优选还包括固化剂、固化促进剂、阻燃剂、稳定剂和脱模剂中的一种或几种。本发明对于上述添加剂的种类和添加量不进行限定,本领域技术人员熟知的种类和添加量即可。
本发明所述纤维选自凯夫拉纤维、聚酯纤维、碳纤维和玻璃纤维中的一种或几种。所述纤维的型式优选可以为短纤维、纤维须或者两者的混合物。所述纤维的长度优选为0.1~20mm,更优选为4~20mm,最优选为6~10mm;所述纤维的直径优选为0.001~1mm,更优选为0.005~0.1mm。优选的,所述纤维与所述热固性树脂的重量比为10:90~80:20,更优选为20:80~60:40;最优选为25:75~45:55。
本发明提供了一种结构芯材的制备方法,包括:
热固性树脂和纤维混合,挤出,得到混合物;
将所述混合物铺覆蜂窝状芯材孔格上,热压发泡,得到结构芯材。
本发明将热固性树脂和纤维混合,挤出,得到混合物。本发明对于所述热固性树脂和所述纤维混合的方式不进行限定,优选为在搅拌机内混合;本发明所述挤出优选为选用双螺杆挤出机挤出。混合物挤出后优选经过烘干,所述烘干的温度优选为100~110℃。
本发明所述混合物优选包括热固性树脂和发泡剂。所述热固性树脂优选选自酚醛树脂、环氧树脂、不饱和树脂、三聚氰胺树脂和聚氨酯树脂中的一种或几种;还可以选择经过阻燃改性的树脂或低粘度树脂;如粘度为300mPs以下的树脂。本发明所述的发泡剂可以为物理或化学发泡剂,本发明对此并无限定,优选为Ac发泡剂或OBSH发泡剂。所述发泡剂倍率优选为1~10倍,更优选为2~6倍;所述发泡温度优选为60~200℃,更优选为70℃~160℃。在所述混合物中,发泡剂和热固性树脂的重量比优选为1:99~40:60,更优选为5:95~30:70,最优选为10:90~25:75。
本发明所述混合物优选还包括固化剂、固化促进剂、阻燃剂、稳定剂和脱模剂中的一种或几种。本发明对于上述添加剂的种类和添加量不进行限定,本领域技术人员熟知的种类和添加量即可。
本发明所述纤维选自凯夫拉纤维、聚酯纤维、碳纤维和玻璃纤维中的一种或几种。所述纤维的型式优选可以为短纤维、纤维须或者两者的混合物。所述纤维的长度优选为0.1~20mm,更优选为4~20mm,最优选为6~10mm;所述纤维的直径优选为0.001~1mm,更优选为0.005~0.1mm。优选的,所述纤维与所述热固性树脂的重量比为10:90~80:20,更优选为20:80~60:40;最优选为25:75~45:55。
得到混合物后,将所述混合物铺覆蜂窝状芯材孔格上,热压发泡,得到结构芯材。
将所述混合物铺覆到蜂窝孔格上,具体为铺覆在蜂窝表层,使得铺覆在表层厚薄一致即可;也可以为将混合物铺覆在热压板上,将蜂窝铺在该混合物上。完成铺覆后,热压发泡,优选的,所述热压的温度为120℃~170℃,所述热压的时间为10~40min,所述热压的压强为0.4~1Mpa。本发明热压和发泡同时进行,无需二次复合。本发明所述的蜂窝状芯材的材质选自金属材质和有机材质中的一种,更优选选自铝材质蜂窝和芳纶材质蜂窝中的一种。一般选用六边形蜂窝,也可以根据需要选择其他形状。所述蜂窝孔径优选为3~30mm,更优选为6~25mm;所述蜂窝的壁厚优选为0.05~1mm,更优选为0.1~0.5mm。
本发明提供的结构芯材由蜂窝状芯材、热固性树脂和纤维制备而成,上述原料均具有很好地阻燃性,使得结构芯材具有阻燃性能,而蜂窝状芯材、热固性树脂和纤维三者的复合结构使得结构芯材不仅重量轻而且力学性能好。
本发明优选采用以下方式对结构芯材进行性能测定:
防火性能:DIN5510-2;
平压强度:GB/T1453
隔声量:ISO140-3;
密度:GB/T1643。
本文提到的测试结果的标准为该四项。
为了进一步说明本发明,以下结合实施例对本发明提供的结构芯材及其制备方法进行详细描述。
实施例1
将75份酚醛树脂、25份AC发泡剂和30份5mm长的短玻纤混合,通过双螺杆挤出机搅拌并挤出,通过烘道在105℃加热5min,得到混合物。选取铝蜂窝芯,选取六边形蜂窝芯,高13mm,孔径25mm,壁厚0.3mm。并将铝蜂窝芯进行拉伸(铝蜂窝原材料为蜂窝块,需要用铝蜂窝拉伸机拉伸为正六边形)并置于脱模纸上,然后将烘干后的物料铺覆在其上,在最上面再放置一层脱模纸。脱模纸用于防止物料粘附在压机压板上,可在压板上喷洒或擦拭脱模剂代替脱模纸。将脱模纸及其内物料转入热压机内,将压机压至13mm,在170℃,0.5MPa压力下热压25分钟,得到结构芯材。
采用本发明所述的方法对实施例1制备得到的结构芯材进行测试,所得结构芯材压缩强度1.8MPa,密度160kg/m3,隔声量24dB,防火等级S4级。
实施例2
将80份酚醛树脂、20份AC发泡剂和35份10mm长的短玻纤混合,通过双螺杆挤出机搅拌并挤出,通过烘道在105℃加热6min,得到混合物。选取铝蜂窝芯,选取六边形蜂窝芯,高25mm,孔径15mm,壁厚0.2mm。并将铝蜂窝芯进行拉伸。准备一层玻纤预浸料,然后将拉伸好的铝蜂窝芯置于预浸料上,然后将烘干后的物料铺覆在其上,在最上面再放置一层玻纤预浸料。在压板上喷洒脱模剂,然后将物料放在压机压板上,将压机压至26mm,在160℃,0.7MPa压力下热压30分钟,得到结构芯材。
采用本发明所述的方法对实施例2制备得到的结构芯材进行测试,所得结构芯材压缩强度2MPa,密度300kg/m3,隔声量32dB,防火等级S4级。
实施例3
将组分为85份环氧树脂、13份OBSH发泡剂、2份环氧固化剂和25份17mm长的短玻纤混合,通过双螺杆搅拌混料并挤出,通过烘道在100℃加热2min,得到混合物。选取准备厚度为1mm的芳纶蜂窝,高25mm,孔径15mm,最后在压机中铺覆混合物,并将芳纶蜂窝芯置在其上。在上下表层放置各0.1mm碳纤维预浸料。在热压板上喷洒脱模剂,并将碳纤维预浸料和其内物料放置在热压板上。将压机压至约15mm,在160℃,0.7MPa压力下热压10min,得到结构芯材。
采用本发明所述的方法对实施例3制备得到的结构芯材进行测试,所得结构芯材压缩强度2.2MPa,密度260kg/m3,隔声量30dB,防火等级S4级。
实施例4
将组分为75份酚醛树脂、25份AC发泡剂和40份20mm长的短玻纤混合,通过双螺杆搅拌混料并挤出,通过烘道在105℃加热5min,得到混合物。选取铝蜂窝芯,选取六边形蜂窝芯,高25mm,孔径15mm,壁厚0.2mm。最后在压机中铺覆混合物,并将铝蜂窝芯覆在其上,将压机压至13mm,在170℃热压25分钟。得到结构芯材。
采用本发明所述的方法对实施例4制备得到的结构芯材进行测试,所得结构芯材压缩强度1.8MPa,密度130kg/m3,隔声量24dB,防火等级S4级。
实施例5
将组分为85份环氧树脂、13份OBSH发泡剂、2份固化剂和30份7mm长的短玻纤混合,通过双螺杆搅拌混料并挤出,通过烘道在105℃加热5min,得到混合物。准备厚度为0.7mm,高25mm,孔径15mm的芳纶蜂窝。最后在压机中铺覆混合物,并将芳纶蜂窝芯覆在其上,将压机压至15mm,在160℃热压10分钟。得到结构芯材。
采用本发明所述的方法对实施例5制备得到的结构芯材进行测试,所得结构芯材压缩强度3.5MPa,密度110kg/m3,隔声量30dB,防火等级S4级。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。

Claims (10)

1.一种结构芯材,包括:
蜂窝状芯材;
填充于蜂窝状芯材孔格内的纤维增强的热固性树脂泡沫;所述纤维增强的热固性树脂泡沫由包括热固性树脂和纤维的混合物发泡制得。
2.根据权利要求1所述的结构芯材,其特征在于,所述混合物还包括发泡剂。
3.根据权利要求2所述的结构芯材,其特征在于,所述混合物还包括固化剂、固化促进剂、阻燃剂、稳定剂和脱模剂中的一种或几种。
4.根据权利要求1所述的结构芯材,其特征在于,所述蜂窝状芯材的材质选自金属材质和有机材质中的一种;
所述热固性树脂选自酚醛树脂、环氧树脂、不饱和树脂、三聚氰胺树脂和聚氨酯树脂中的一种或几种;
所述纤维选自凯夫拉纤维、聚酯纤维、碳纤维和玻璃纤维中的一种或几种。
5.根据权利要求1所述的结构芯材,其特征在于,所述纤维与所述热固性树脂的重量比为10:90~80:20。
6.一种结构芯材的制备方法,包括:
热固性树脂和纤维混合,挤出,得到混合物;
将所述混合物铺覆蜂窝状芯材孔格上,热压发泡,得到结构芯材。
7.根据权利要求6所述的结构芯材的制备方法,其特征在于,所述纤维与所述热固性树脂的重量比为10:90~80:20。
8.根据权利要求6所述的结构芯材的制备方法,其特征在于,所述纤维长度为4mm~20mm。
9.根据权利要求6所述的结构芯材的制备方法,其特征在于,所述挤出为选用双螺杆挤出机挤出。
10.根据权利要求6所述的结构芯材的制备方法,其特征在于,所述热压的温度为120℃~170℃,所述热压的时间为10~40min,所述热压的压强为0.4~1Mpa。
CN201410407607.1A 2014-08-19 2014-08-19 一种阻燃轻质结构芯及其制备方法 Pending CN105437683A (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201410407607.1A CN105437683A (zh) 2014-08-19 2014-08-19 一种阻燃轻质结构芯及其制备方法
EP14899939.4A EP3184294A4 (en) 2014-08-19 2014-11-05 Flame-retardant lightweight structural core and manufacturing method therefor
PCT/CN2014/090334 WO2016026217A1 (zh) 2014-08-19 2014-11-05 一种阻燃轻质结构芯及其制备方法
CA2958098A CA2958098A1 (en) 2014-08-19 2014-11-05 Flame-retardant lightweight structural core and manufacturing method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410407607.1A CN105437683A (zh) 2014-08-19 2014-08-19 一种阻燃轻质结构芯及其制备方法

Publications (1)

Publication Number Publication Date
CN105437683A true CN105437683A (zh) 2016-03-30

Family

ID=55350139

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410407607.1A Pending CN105437683A (zh) 2014-08-19 2014-08-19 一种阻燃轻质结构芯及其制备方法

Country Status (4)

Country Link
EP (1) EP3184294A4 (zh)
CN (1) CN105437683A (zh)
CA (1) CA2958098A1 (zh)
WO (1) WO2016026217A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105904812A (zh) * 2016-04-24 2016-08-31 扬州润友复合材料有限公司 一种蜂窝结构塑木复合材料板材及其制备方法
CN108248124A (zh) * 2018-01-30 2018-07-06 深圳市郎搏万先进材料有限公司 一种pp蜂窝夹芯复合板材及其制备方法
CN112976720A (zh) * 2019-12-13 2021-06-18 山东圣泉新材料股份有限公司 一种蜂窝复合板及其制备方法和应用
CN116960546A (zh) * 2023-09-13 2023-10-27 湖北祥源高新科技有限公司 有机硅发泡材料及包含其的电池模组

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2848557Y (zh) * 2005-07-15 2006-12-20 郑百哲 酚醛泡沫蜂窝板
JP2006341428A (ja) * 2005-06-08 2006-12-21 Shizuka:Kk ハニカム構造体及びこれを用いたサンドイッチパネル
CN101130632A (zh) * 2007-08-08 2008-02-27 北京航空航天大学 一种聚酰亚胺泡沫原位填充蜂窝复合材料
CN202402887U (zh) * 2011-06-20 2012-08-29 朱殿奎 纤维增强的阻燃蜂窝筋酚醛保温板
CN104097367A (zh) * 2014-07-31 2014-10-15 株洲时代新材料科技股份有限公司 一种轻质复合板及其制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6344268B1 (en) * 1998-04-03 2002-02-05 Certainteed Corporation Foamed polymer-fiber composite
FR2887174B1 (fr) * 2005-06-15 2007-08-24 Antoine Antoine Piece composite telle qu'un panneau, comportant une structure alveolaire a nids d'abeille
GB2456659A (en) * 2008-01-22 2009-07-29 Matthew Smyth High structural strength sandwich panel
JP5313063B2 (ja) * 2009-07-01 2013-10-09 株式会社林技術研究所 車両用ボード構造体およびその製造方法
CN203957429U (zh) * 2014-07-31 2014-11-26 株洲时代新材料科技股份有限公司 一种轻质复合板

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006341428A (ja) * 2005-06-08 2006-12-21 Shizuka:Kk ハニカム構造体及びこれを用いたサンドイッチパネル
CN2848557Y (zh) * 2005-07-15 2006-12-20 郑百哲 酚醛泡沫蜂窝板
CN101130632A (zh) * 2007-08-08 2008-02-27 北京航空航天大学 一种聚酰亚胺泡沫原位填充蜂窝复合材料
CN202402887U (zh) * 2011-06-20 2012-08-29 朱殿奎 纤维增强的阻燃蜂窝筋酚醛保温板
CN104097367A (zh) * 2014-07-31 2014-10-15 株洲时代新材料科技股份有限公司 一种轻质复合板及其制备方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
卓昌明等: "《塑料应用技术手册》", 31 May 2013 *
孙晋良等: "《纤维新材料》", 31 August 2007 *
张德庆等: "《材料科学与工程系列教材 高分子材料科学导论》", 31 August 1999 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105904812A (zh) * 2016-04-24 2016-08-31 扬州润友复合材料有限公司 一种蜂窝结构塑木复合材料板材及其制备方法
CN105904812B (zh) * 2016-04-24 2017-12-12 扬州润友复合材料有限公司 一种蜂窝结构塑木复合材料板材及其制备方法
CN108248124A (zh) * 2018-01-30 2018-07-06 深圳市郎搏万先进材料有限公司 一种pp蜂窝夹芯复合板材及其制备方法
CN112976720A (zh) * 2019-12-13 2021-06-18 山东圣泉新材料股份有限公司 一种蜂窝复合板及其制备方法和应用
CN116960546A (zh) * 2023-09-13 2023-10-27 湖北祥源高新科技有限公司 有机硅发泡材料及包含其的电池模组
CN116960546B (zh) * 2023-09-13 2024-01-30 湖北祥源高新科技有限公司 有机硅发泡材料及包含其的电池模组

Also Published As

Publication number Publication date
EP3184294A4 (en) 2018-02-28
CA2958098A1 (en) 2016-02-25
EP3184294A1 (en) 2017-06-28
WO2016026217A1 (zh) 2016-02-25

Similar Documents

Publication Publication Date Title
WO2018033042A1 (zh) 高纤维含量纤维增强聚氨酯硬泡复合板材及其制作方法
CN105437683A (zh) 一种阻燃轻质结构芯及其制备方法
CN104073016B (zh) 一种轻质高强防火复合材料及其制造方法
CN102731960B (zh) 一种高韧性阻燃酚醛预浸料复合材料的制备方法
CN103510654B (zh) 一种高强度阻燃隔音隔热夹芯板及其制备方法
CN104249496A (zh) 一种防火保温复合轻质板材及其制备方法
CN104497473A (zh) 一种纤维增强酚醛泡沫复合材料及其制备方法
CN104098869A (zh) 一种高强、轻质、防火装饰材料的制造方法
US4917742A (en) Method of making lightweight panels and their core materials
KR20110086250A (ko) 고강도 불연성 유리섬유시트를 이용한 고내열 고난연성 경질우레탄 복합단열재 및 이의 제조방법
KR20130085305A (ko) 페놀 폼을 이용한 hvac 덕트 및 그 제조 방법
CN102391615A (zh) 一种航空用纤维增强热固轻质防火材料及其生产工艺
KR20190068453A (ko) 불연 단열재
CN104018665B (zh) 一种建筑模板材料及其制备方法
CN108342053A (zh) 一种电缆槽用复合材料、制备方法及其电缆槽
CN117549579A (zh) 一种复合材料型层压木的拉挤制备方法及层压木
KR20110121764A (ko) 경질우레탄폼 복합 단열재의 제조방법
CN110466230A (zh) 一种轻质耐高压聚氨酯泡沫复合板及其制备方法
KR102440719B1 (ko) 고내열성 섬유 및 페놀수지를 포함하는 내화복합패널 및 그 제조방법
CN109054348A (zh) 一种阻燃防水材料及其制备方法
CN112724439B (zh) 一种轻质隔热微烧蚀预浸料及其制备方法
CN107083043A (zh) 一种低耗电的保温材料及制备方法
CN106515168A (zh) 一种保温阻燃热塑性聚酯复合材料及其制备方法和应用
KR101498998B1 (ko) 구조물 보강용 고강도 복합섬유패널 및 이를 이용한 구조물 보강공법
JP2005297220A (ja) 樹脂製パネル

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20160330

RJ01 Rejection of invention patent application after publication