WO2024092971A1 - 一种行李箱盖板及其制备方法和应用 - Google Patents

一种行李箱盖板及其制备方法和应用 Download PDF

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WO2024092971A1
WO2024092971A1 PCT/CN2022/139578 CN2022139578W WO2024092971A1 WO 2024092971 A1 WO2024092971 A1 WO 2024092971A1 CN 2022139578 W CN2022139578 W CN 2022139578W WO 2024092971 A1 WO2024092971 A1 WO 2024092971A1
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Prior art keywords
glue
glass fiber
fiber mat
mold
preparation
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PCT/CN2022/139578
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English (en)
French (fr)
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陆静洁
薛喜彬
黄威
朱可达
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无锡吉兴汽车声学部件科技有限公司
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Publication of WO2024092971A1 publication Critical patent/WO2024092971A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/01—Liners for load platforms or load compartments

Definitions

  • the present application belongs to the technical field of automobile interior decoration parts, and relates to a trunk cover plate and a preparation method and application thereof, and in particular to a high-strength trunk cover plate and a preparation method and application thereof.
  • the trunk cover is one of the interior decorations in the vehicle trunk. It can be removed or flipped up to facilitate the placement of the spare tire and related items on the trunk cover, playing a decorative and necessary load-bearing role.
  • trunk covers mainly include PP boards/GF boards, PP honeycomb boards, and PHC boards.
  • PP boards/GF boards mainly include PP honeycomb boards, and PHC boards.
  • the load-bearing requirements of trunk covers are increasing.
  • the strength of trunk covers made of the above materials can no longer meet the use requirements, or the strength of some trunk covers can meet the requirements under normal climatic conditions, but cannot meet the use requirements under some extreme climatic conditions (such as high temperature climate or extremely cold climate).
  • CN105058931A discloses a method for producing a trunk cover for automobiles, comprising the following steps: heating the trunk cover substrate, laying the PU board, spraying the large blanket of the cover, bonding the small board and the large blanket of the cover, spraying the small board at the position, bonding the small blanket, cutting, spraying the semi-finished product of the trunk cover, keeping the semi-finished product under pressure, and installing accessories on the rough trunk cover.
  • the invention has a stable process, ensures the accuracy of the product, and improves the operating efficiency; no harmful substances are produced during the entire production process, and it is an environmentally friendly process.
  • the base material of the trunk cover of the invention is a plate body composed of PP board and GF board, and the strength of the trunk cover needs to be further improved.
  • CN103395272A discloses a production process for a car trunk cover, which adopts the following process steps: placing a surface blanket flat in a cutting die and cutting it into a desired shape; placing the surface blanket on a laminating die and fixing it, with the front of the surface blanket facing downward, spraying polyolefin glue on the back of the surface blanket and the back of the substrate, and laminating the back of the surface blanket with the front of the substrate to obtain a rough car trunk cover; laminating the front of the trunk cover fabric with the back of the substrate in the rough car trunk cover to obtain a semi-finished car trunk cover; finally, placing the semi-finished car trunk cover in a pressing die for pressing, and forming a car trunk cover after pressing.
  • the method of the invention is simple in process, has few process steps, and no harmful substances are generated during the production process. It is environmentally friendly and pollution-free, reduces manufacturing costs, and greatly improves the loading accuracy requirements of the car trunk cover and improves the sound insulation effect.
  • the substrate of the trunk cover of the invention is a PP honeycomb board or a hardwood board, and the strength of the trunk cover needs to be further improved.
  • the purpose of the present application is to provide a trunk cover and a preparation method and application thereof, and specifically to provide a high-strength trunk cover and a preparation method and application thereof.
  • the present application provides a method for preparing a trunk cover, the method comprising the following steps:
  • Pre-embedding Pre-embedding two steel plates in the upper and lower cavities of the mold respectively;
  • step (3) Punching the press-formed strip:
  • the semi-finished product obtained in step (2) is sent to a mold and punched together with the steel plate pre-buried in step (1) to obtain a rough cover plate;
  • Edge binding The rough cover plate obtained in step (3) and the surface blanket after rolling with glue obtained in step (4) are placed in an edge binding device for edge binding to obtain the luggage compartment cover plate.
  • two steel plates are respectively embedded in the upper and lower cavities of the mold, and then pressed together with the semi-finished product obtained in step (2) to form a strip for punching.
  • the steel plates can be wrapped, so that the prepared trunk cover has high strength, good load-bearing capacity, and can be applied to various climate conditions; the hemming step can make the prepared trunk cover have no sharp edges.
  • the preparation method of the present application does not produce harmful substances in the production process, which is environmentally friendly and energy-saving.
  • the trunk cover provided in the present application can be used as a multifunctional trunk cover for a car.
  • step (3) the semi-finished product obtained in step (2) is delivered to the mold, and the semi-finished product is located between two steel plates in the mold, that is, the steel plate located in the upper cavity of the mold is above the semi-finished product, and the steel plate located in the lower cavity of the mold is below the semi-finished product.
  • the present application does not limit the specific position of the steel plates.
  • the length direction of the steel plate can be parallel to the length direction of the semi-finished product, or it can be perpendicular to the length direction of the semi-finished product, or it can form other angles with the length direction of the semi-finished product.
  • the upper and lower steel plates can be placed symmetrically or asymmetrically, which can be set according to customer needs.
  • the length of the steel plate in step (1) is 500-1500 mm, such as 600, 700, 800, 900, 1000, 1100, 1200, 1300 or 1400 mm, etc.
  • the width is 20-100 mm, such as 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm or 90 mm, etc.
  • the thickness is 0.5-3 mm, such as 0.6 mm, 0.8 mm, 1 mm, 1.3 mm, 1.5 mm, 1.8 mm, 2 mm, 2.3 mm, 2.5 mm or 2.8 mm, etc., but the above values are not limited to the listed values, and other values not listed in the numerical range are also applicable.
  • the above limitation on the size of the steel plate means that the sizes of the two steel plates are within the above range, and the sizes of the two steel plates can be the same or different.
  • the load-bearing capacity is relatively poor. If the thickness of the steel plate is too large, the load-bearing requirement is relatively high, but the weight is heavier.
  • the weight of the upper glass fiber mat and the lower glass fiber mat in step (2) is independently 400-700 g/ m2 , for example, 450 g/ m2 , 500 g/ m2 , 550 g/ m2 , 600 g/ m2 or 650 g/ m2 , but is not limited to the listed values, and other values not listed in the numerical range are also applicable.
  • the thickness of the upper layer of glass fiber felt and the lower layer of glass fiber felt in step (2) are independently 0.5 to 2 mm, for example, 0.8 mm, 1 mm, 1.3 mm, 1.5 mm or 1.8 mm, etc., but are not limited to the listed values, and other unlisted values within the numerical range are also applicable.
  • the upper layer of glass fiber felt and the lower layer of glass fiber felt have the same gram weight and the same thickness.
  • the gram weight of the paper honeycomb in step (2) is 600-1800 g/m 2 , for example, 650 g/m 2 , 700 g/m 2 , 800 g/m 2 , 900 g/m 2 , 1000 g/m 2 , 1100 g/m 2 , 1200 g/m 2 , 1300 g/m 2 , 1400 g/m 2 , 1500 g/m 2 , 1600 g/m 2 or 1700 g/m 2 , but is not limited to the listed values, and other values not listed within the numerical range are also applicable.
  • the thickness of the paper honeycomb in step (2) is 10 to 30 mm, for example, 13 mm, 15 mm, 18 mm, 20 mm, 23 mm, 25 mm or 28 mm, etc., but is not limited to the listed values, and other values not listed within the numerical range are also applicable.
  • the spraying amount of the polyurethane foam material in step (2) is 300-800 g/m 2 , for example, 350 g/m 2 , 400 g/m 2 , 450 g/m 2 , 500 g/m 2 , 550 g/m 2 , 600 g/m 2 , 650 g/m 2 , 700 g/m 2 or 750 g/m 2 , etc., but is not limited to the listed values, and other values not listed in the numerical range are also applicable.
  • the polyurethane foam material described in this application can be directly purchased.
  • the mold in step (3) is a hot mold.
  • the temperature of the hot mold is 80-140° C., for example, 90° C., 100° C., 110° C., 120° C. or 130° C., but is not limited to the listed values, and other values not listed within the range are also applicable.
  • the pressure for punching the press-molded tape in step (3) is 5 to 20 MPa, for example, it can be 6 MPa, 7 MPa, 8 MPa, 9 MPa, 10 MPa, 11 MPa, 12 MPa, 13 MPa, 14 MPa, 15 MPa, 16 MPa, 17 MPa, 18 MPa or 19 MPa, and the molding time is 50 to 60 s, for example, it can be 51 s, 52 s, 53 s, 54 s, 55 s, 56 s, 57 s, 58 s or 59 s, but the above values are not limited to the listed values, and other values not listed within the numerical range are also applicable.
  • the surface blanket in step (4) has a gram weight of 150-450 g/m 2 , for example, 180 g/m 2 , 200 g/m 2 , 230 g/m 2 , 250 g/m 2 , 280 g/m 2 , 300 g/m 2 , 330 g/m 2 , 350 g/m 2 , 380 g/m 2 , 400 g/m 2 or 430 g/m 2 , but is not limited to the listed values, and other values not listed within the numerical range are equally applicable.
  • the surface blanket in step (4) is made of polyethylene terephthalate (PET) and has a velvet or non-velvet style.
  • PET polyethylene terephthalate
  • the thickness of the surface blanket in step (4) is 1 to 5 mm, for example, 2 mm, 3 mm or 4 mm, etc., but is not limited to the listed values, and other values not listed within the numerical range are also applicable.
  • the glue used for rolling glue in step (4) is polyurethane glue, which can be purchased directly.
  • the temperature of the glue rolling machine in step (4) is 10°C to 40°C, for example, 15°C, 20°C, 25°C, 30°C or 35°C, etc., but is not limited to the listed values, and other values not listed within the numerical range are also applicable.
  • the amount of glue rolled in step (4) is 10-25 g/ m2 , for example, 13 g/ m2 , 15 g/ m2 , 18 g/ m2 , 20 g/ m2 or 23 g/ m2 , but is not limited to the listed values, and other values not listed within the numerical range are also applicable.
  • the method for preparing the luggage compartment cover comprises the following steps:
  • Pre-embedding Two steel plates with a length of 500-1500 mm, a width of 20-100 mm, and a thickness of 0.5-3 mm are respectively pre-embedded in the upper and lower cavities of the mold;
  • step (3) Punching the press-formed strip: the semi-finished product obtained in step (2) is sent to a mold for punching the press-formed strip together with the steel plate pre-buried in step (1) to obtain a rough cover plate; wherein the mold is a hot mold, the pressure for punching the press-formed strip is 5 to 20 MPa, and the forming time is 50 to 60 seconds;
  • Gluing the surface blanket Gluing the surface blanket with a gram weight of 150 to 450 g/ m2 to obtain a glued surface blanket; wherein the glue used for glue rolling is polyurethane glue, the glue machine temperature is 10°C to 40°C, and the glue rolling amount is 10 to 25 g/ m2 ;
  • Edge binding The rough cover plate obtained in step (3) and the surface blanket after rolling with glue obtained in step (4) are placed in an edge binding device for edge binding to obtain the luggage compartment cover plate.
  • the present application provides a trunk cover, which is prepared according to the preparation method described in the first aspect.
  • the present application provides an application of the trunk cover as described in the second aspect in a car trunk.
  • the trunk cover provided in the present application is applied to the trunk of an SUV model.
  • two steel plates are respectively embedded in the upper and lower cavities of the mold, and then pressed together with the semi-finished product obtained in step (2) to form a strip for punching.
  • the steel plates can be wrapped, so that the prepared trunk cover has high strength and good bearing capacity (the maximum deformation at room temperature is 8-15mm), and can be applied to various climatic conditions; the hemming step can make the prepared trunk cover have no sharp edges.
  • the preparation method of the present application does not produce harmful substances in the production process, which is environmentally friendly and energy-saving.
  • FIG1 is a schematic diagram of the structure of a trunk cover provided in Example 1 of the present application.
  • 1-upper layer of glass fiber mat 2-paper honeycomb, 3-lower layer of glass fiber mat, 4-steel plate, 5-polyurethane foam layer.
  • the polyurethane foam material used in the examples and comparative examples of the present application is obtained by mixing material A and material B in a mass ratio of 1:1.6, wherein the grade of material A is GN8007, the grade of material B is 44V20L; and the grade of polyurethane glue is 1923.
  • a luggage compartment cover is provided, and a preparation method thereof includes the following steps:
  • Pre-embedding Two steel plates with a length of 800 mm, a width of 60 mm, and a thickness of 2 mm are respectively pre-embedded in the upper and lower cavities of the mold;
  • step (3) Punching of the press-formed strip: the semi-finished product obtained in step (2) is sent to a mold for punching of the press-formed strip together with the steel plate pre-buried in step (1) to obtain a rough cover plate; wherein the mold is a hot mold (temperature is 120° C.), the pressure for punching the press-formed strip is 15 MPa, and the forming time is 55 s;
  • Gluing the surface blanket Gluing a surface blanket with a weight of 300 g/m 2 , a thickness of 2.5 mm, and a material of PET to obtain a glued surface blanket; wherein the glue used for glue rolling is polyurethane glue, the glue machine temperature is 25° C., and the glue rolling amount is 20 g/m 2 ;
  • Edge binding The rough cover plate obtained in step (3) and the surface blanket after rolling with glue obtained in step (4) are placed in an edge binding device for edge binding to obtain the luggage compartment cover plate.
  • step (3) the semi-finished product obtained in step (2) is sent to the mold, and the semi-finished product is located between two steel plates in the mold.
  • the two steel plates are symmetrically placed, and their length direction is parallel to the length direction of the semi-finished product.
  • FIG1 The structural schematic diagram of the luggage compartment cover provided in this embodiment is shown in FIG1 , wherein the polyurethane foam layer is obtained by foaming a polyurethane foam material.
  • a luggage compartment cover is provided, and a preparation method thereof includes the following steps:
  • Pre-embedding Two steel plates with a length of 500 mm, a width of 20 mm, and a thickness of 0.5 mm are respectively pre-embedded in the upper and lower cavities of the mold;
  • step (3) Punching of the press-formed strip: the semi-finished product obtained in step (2) is sent to a mold for punching of the press-formed strip together with the steel plate pre-buried in step (1) to obtain a rough cover plate; wherein the mold is a hot mold (temperature is 80° C.), the pressure for punching the press-formed strip is 5 MPa, and the forming time is 50 s;
  • Gluing the surface blanket Gluing a surface blanket with a weight of 150 g/m 2 , a thickness of 1 mm, and a material of PET to obtain a glued surface blanket; wherein the glue used for glue rolling is polyurethane glue, the glue machine temperature is 10° C., and the glue rolling amount is 10 g/m 2 ;
  • Edge binding The rough cover plate obtained in step (3) and the surface blanket after rolling with glue obtained in step (4) are placed in an edge binding device for edge binding to obtain the luggage compartment cover plate.
  • step (3) the semi-finished product obtained in step (2) is sent to the mold, and the semi-finished product is located between two steel plates in the mold.
  • the two steel plates are symmetrically placed, and their length direction is parallel to the length direction of the semi-finished product.
  • a luggage compartment cover is provided, and a preparation method thereof includes the following steps:
  • Pre-embedding Two steel plates with a length of 1500 mm, a width of 100 mm, and a thickness of 3 mm are respectively embedded in the upper and lower cavities of the mold;
  • step (3) Punching of the press-formed strip: the semi-finished product obtained in step (2) is sent to a mold for punching of the press-formed strip together with the steel plate pre-buried in step (1) to obtain a rough cover plate; wherein the mold is a hot mold (temperature is 140° C.), the pressure of the press-formed strip punching is 20 MPa, and the forming time is 60 s;
  • Gluing the surface blanket Gluing a surface blanket with a weight of 450 g/m 2 , a thickness of 5 mm, and a material of PET to obtain a glued surface blanket; wherein the glue used for glue rolling is polyurethane glue, the glue machine temperature is 40° C., and the glue rolling amount is 25 g/m 2 ;
  • Edge binding The rough cover plate obtained in step (3) and the surface blanket after rolling with glue obtained in step (4) are placed in an edge binding device for edge binding to obtain the luggage compartment cover plate.
  • step (3) the semi-finished product obtained in step (2) is sent to the mold, and the semi-finished product is located between two steel plates in the mold.
  • the two steel plates are symmetrically placed, and their length direction is parallel to the length direction of the semi-finished product.
  • Example 1 The only difference between this comparative example and Example 1 is that the two steel plates in step (1) are replaced with alloy aluminum plates of the same size.
  • Example 1 The only difference between this comparative example and Example 1 is that the steel plate pre-embedded in the upper cavity of the mold in step (1) is replaced by a carbon fiber plate of the same size.
  • Example 1 The only difference between this comparative example and Example 1 is that the steel plate pre-embedded in the lower cavity of the mold in step (1) is replaced by a glass fiber plate of the same size.
  • the trunk cover provided in Examples 1-6 and Comparative Examples 1-3 was tested for maximum deformation at room temperature.
  • the test method is as follows: the four sides of the trunk cover were supported by aluminum alloy tubes with a length of 1 m and a width of 4.5 cm, a load with a contact area diameter of 100 mm and a weight of 100 kg was pressed on the center of the trunk cover, and the maximum deformation of the trunk cover after 2 hours was tested.
  • the maximum deformation of the trunk cover provided by Examples 1-5 of the present application at room temperature is 8-15 mm, and the load-bearing capacity is good.
  • the maximum deformation of the trunk cover provided by Example 6 at room temperature is significantly increased, which is due to the small thickness of the steel plate.
  • the maximum deformation of the trunk cover provided by Comparative Examples 1-2 at room temperature is slightly increased, while the maximum deformation of the trunk cover provided by Comparative Example 3 at room temperature is significantly increased.
  • the present application uses the above-mentioned embodiments to illustrate the luggage cover and its preparation method and application, but the present application is not limited to the above-mentioned embodiments, that is, it does not mean that the present application must rely on the above-mentioned embodiments to be implemented.
  • the technicians in the relevant technical field should understand that any improvement to the present application, the equivalent replacement of the raw materials selected in the present application, the addition of auxiliary components, the selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present application.

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Abstract

一种行李箱盖板及制备方法和应用，制备方法包括以下步骤:1、将两片钢板(4)分别预埋于模具的上下型腔内；2、按照从上到下的顺序将上层玻璃纤维毡(1)、纸蜂窝(2)和下层玻璃纤维毡(3)铺放整齐，送入喷料舱，然后向上层玻璃纤维毡(1)的上表面和下层玻璃纤维毡(3)的下表面喷洒聚氨酯发泡料，得到半成品；3、将步骤2得到的半成品送至模具中与步骤1预埋的钢板(4)一起进行压制成型带冲切，得到盖板粗品；4、将面毯进行滚胶，得到滚胶后的面毯；5、将盖板粗品和滚胶后的面毯放入包边设备中进行包边，得到行李箱盖板。制备的行李箱盖板具有较高的强度，承载性好，并且可以适用于各种气候条件。

Description

一种行李箱盖板及其制备方法和应用 技术领域
本申请属于汽车内饰件技术领域，涉及一种行李箱盖板及其制备方法和应用，尤其涉及一种高强度行李箱盖板及其制备方法和应用。
背景技术
行李箱盖板是车辆行李箱中的内饰之一，能取下或翻动，方便备胎及相关的物品放置在行李箱盖板上，起到装饰和必须的承重作用。
目前汽车行李箱盖板的材质选择主要包括PP板/GF板、PP蜂窝板、PHC板，但随着SUV、CRV车辆的普及及后备箱市集的流行，行李箱盖板的承重要求日趋增大，采用上述材质制备的行李箱盖板的强度已不能满足使用要求，或者有些行李箱盖板的强度在普通气候条件下可以满足要求，但在一些极端气候条件(例如高温气候或者极寒气候)下其不能满足使用要求。
CN105058931A公开了一种汽车行李箱盖板的生产方法，包括以下步骤：行李箱盖板基材加热步骤、铺放PU板步骤、盖板大面毯喷胶步骤、小板与盖板大面毯粘合步骤、小板位置喷胶步骤、小面毯粘合步骤、裁剪步骤、行李箱盖板半成品喷胶步骤、行李箱盖板半成品保压步骤、在行李箱盖板粗品上安装附件步骤。该发明工艺稳定，确保了产品的准确度，同时提升了作业效率；整个生产过程没有有害物质产生，属于环保工艺。但该发明的行李箱盖板的基材为PP板和GF板复合而成的板体，行李箱盖板的强度有待进一步提高。
CN103395272A公开了一种汽车行李箱盖板的生产工艺，其采用以下工艺步骤：将面毯平放在斩刀模中斩切成所需的形状；所述面毯放在贴合模上固定，面毯的正面朝下，并对面毯的背面和基材的背面喷涂聚烯烃胶水，面毯的背面 与基材的正面贴合，得到汽车行李箱盖板粗品；将行李箱盖板面料的正面与汽车行李箱盖板粗品中基材的背面贴合，得到汽车行李箱盖板半成品；最后将汽车行李箱盖板半成品放置在压合模中进行压制，压制好后形成汽车行李箱盖板。该发明的方法工艺简单、工序步骤少、生产过程中无有害物质的产生，环保无污染，降低了制造成本，大大提高了汽车行李箱盖板的装车精度要求及提升隔音效果。但该发明的行李箱盖板的基材为PP蜂窝板或者硬质木板，行李箱盖板的强度有待进一步提高。
因此，在本领域中，期望开发一种行李箱盖板，其具有较高的强度，并且可以适应各种气候条件。
发明内容 以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
针对现有技术的不足，本申请的目的在于提供一种行李箱盖板及其制备方法和应用，具体提供一种高强度行李箱盖板及其制备方法和应用。
为达到此申请目的，本申请采用以下技术方案：
第一方面，本申请提供一种行李箱盖板的制备方法，所述制备方法包括以下步骤：
(1)预埋：将两片钢板分别预埋于模具的上下型腔内；
(2)按照从上到下的顺序将上层玻璃纤维毡、纸蜂窝和下层玻璃纤维毡铺放整齐，送入喷料舱，然后向上层玻璃纤维毡的上表面和下层玻璃纤维毡的下表面喷洒聚氨酯发泡料，得到半成品；
(3)压制成型带冲切：将步骤(2)得到的半成品送至模具中与步骤(1)预埋的钢板一起进行压制成型带冲切，得到盖板粗品；
(4)面毯滚胶：将面毯进行滚胶，得到滚胶后的面毯；
(5)包边：将步骤(3)得到的盖板粗品和步骤(4)得到的滚胶后的面毯放入包边设备中进行包边，得到所述行李箱盖板。
在本申请中，通过将两片钢板分别预埋于模具的上下型腔内，然后再与步骤(2)得到的半成品一起进行压制成型带冲切，聚氨酯发泡料发泡后可以将钢板包裹，从而使得制备的行李箱盖板具有较高的强度，承载性好，并且可以适用于各种气候条件；通过包边的步骤可以使得制备的行李箱盖板无锋利边缘。此外，采用本申请的制备方法，生产过程没有有害物质产生，环保节能。
本申请提供的行李箱盖板可以作为汽车行李箱盖板多功能使用。
需要说明的是，步骤(3)中，将步骤(2)得到的半成品送至模具中，半成品在模具中位于两片钢板之间，即，位于模具上型腔内的钢板在半成品的上方，位于模具下型腔内的钢板在半成品的下方。但本申请对于钢板的具体位置不作限定，例如，钢板的长度方向可以与半成品的长度方向平行，也可以与半成品的长度方向垂直，也可以与半成品的长度方向形成其他角度，当然，上下两片钢板可以对称放置，也可以不对称放置，这些可以根据客户的需求进行设置。
可选地，步骤(1)所述钢板的长度为500～1500mm，例如可以是600、700、800、900、1000、1100、1200、1300或1400mm等，宽度为20～100mm，例如可以是30mm、40mm、50mm、60mm、70mm、80mm或90mm等，厚度为0.5～3mm，例如可以是0.6mm、0.8mm、1mm、1.3mm、1.5mm、1.8mm、2mm、2.3mm、2.5mm或2.8mm等，但上述数值并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。上述对钢板尺寸的限定指的是两片钢板的尺寸均在上述范围内，两片钢板的尺寸可以相同，也可以不相同。
若钢板的厚度过小，承载相对较差，若钢板的厚度过大，承载要求相对较 高，但重量较重。
可选地，步骤(2)所述上层玻璃纤维毡和下层玻璃纤维毡的克重各自独立地为400～700g/m 2，例如可以是450g/m 2、500g/m 2、550g/m 2、600g/m 2或650g/m 2等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
可选地，步骤(2)所述上层玻璃纤维毡和下层玻璃纤维毡的厚度各自独立地为0.5～2mm，例如可以是0.8mm、1mm、1.3mm、1.5mm或1.8mm等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
作为本申请的优选技术方案，上层玻璃纤维毡和下层玻璃纤维毡的克重相同，厚度也相同。
可选地，步骤(2)所述纸蜂窝的克重为600～1800g/m 2，例如可以是650g/m 2、700g/m 2、800g/m 2、900g/m 2、1000g/m 2、1100g/m 2、1200g/m 2、1300g/m 2、1400g/m 2、1500g/m 2、1600g/m 2或1700g/m 2等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
可选地，步骤(2)所述纸蜂窝的厚度为10～30mm，例如可以是13mm、15mm、18mm、20mm、23mm、25mm或28mm等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
可选地，步骤(2)所述聚氨酯发泡料的喷洒量为300～800g/m 2，例如可以是350g/m 2、400g/m 2、450g/m 2、500g/m 2、550g/m 2、600g/m 2、650g/m 2、700g/m 2或750g/m 2等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。本申请所述聚氨酯发泡料可以直接购买得到。
可选地，步骤(3)所述模具为热模。
可选地，所述热模的温度为80～140℃，例如可以是90℃、100℃、110℃、 120℃或130℃等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
可选地，步骤(3)所述压制成型带冲切的压力为5～20MPa，例如可以是6MPa、7MPa、8MPa、9MPa、10MPa、11MPa、12MPa、13MPa、14MPa、15MPa、16MPa、17MPa、18MPa或19MPa等，成型时间为50～60s，例如可以是51s、52s、53s、54s、55s、56s、57s、58s或59s等，但上述数值并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
可选地，步骤(4)所述面毯的克重为150～450g/m 2，例如可以是180g/m 2、200g/m 2、230g/m 2、250g/m 2、280g/m 2、300g/m 2、330g/m 2、350g/m 2、380g/m 2、400g/m 2或430g/m 2等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
可选地，步骤(4)所述面毯的材质为聚对苯二甲酸乙二醇酯(PET)，风格为起绒或者不起绒。
可选地，步骤(4)所述面毯的厚度为1～5mm，例如可以是2mm、3mm或4mm等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
可选地，步骤(4)所述滚胶的胶水为聚氨酯胶，其可以直接购买得到。
可选地，步骤(4)所述滚胶的胶机温度为10℃～40℃，例如可以是15℃、20℃、25℃、30℃或35℃等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
可选地，步骤(4)所述滚胶的滚胶量为10～25g/m 2，例如可以是13g/m 2、15g/m 2、18g/m 2、20g/m 2或23g/m 2等，但并不仅限于所列举的数值，该数值范围内其他未列举的数值同样适用。
作为本申请的优选技术方案，所述行李箱盖板的制备方法包括以下步骤：
(1)预埋：将两片长度为500～1500mm，宽度为20～100mm，厚度为0.5～3mm的钢板分别预埋于模具的上下型腔内；
(2)按照从上到下的顺序将克重为400～700g/m 2的上层玻璃纤维毡、克重为600～1800g/m 2的纸蜂窝和克重为400～700g/m 2的下层玻璃纤维毡铺放整齐，送入喷料舱，然后按照300～800g/m 2的喷洒量分别向上层玻璃纤维毡的上表面和下层玻璃纤维毡的下表面喷洒聚氨酯发泡料，得到半成品；
(3)压制成型带冲切：将步骤(2)得到的半成品送至模具中与步骤(1)预埋的钢板一起进行压制成型带冲切，得到盖板粗品；其中，模具为热模，压制成型带冲切的压力为5～20MPa，成型时间为50～60s；
(4)面毯滚胶：将克重为150～450g/m 2的面毯进行滚胶，得到滚胶后的面毯；其中，滚胶的胶水为聚氨酯胶，胶机温度为10℃～40℃，滚胶量为10～25g/m 2；
(5)包边：将步骤(3)得到的盖板粗品和步骤(4)得到的滚胶后的面毯放入包边设备中进行包边，得到所述行李箱盖板。
第二方面，本申请提供一种行李箱盖板，所述行李箱盖板根据第一方面所述的制备方法制备得到。
第三方面，本申请提供一种如第二方面所述的行李箱盖板在汽车行李箱中的应用。
可选地，本申请提供的行李箱盖板应用于SUV车型的行李箱。
相对于现有技术，本申请具有以下有益效果：
在本申请中，通过将两片钢板分别预埋于模具的上下型腔内，然后再与步骤(2)得到的半成品一起进行压制成型带冲切，聚氨酯发泡料发泡后可以将钢板包裹，从而使得制备的行李箱盖板具有较高的强度，承载性好(常温状态下 的最大变形量为8-15mm)，并且可以适用于各种气候条件；通过包边的步骤可以使得制备的行李箱盖板无锋利边缘。此外，采用本申请的制备方法，生产过程没有有害物质产生，环保节能。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图说明
附图用来提供对本文技术方案的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本文的技术方案，并不构成对本文技术方案的限制。
图1为本申请实施例1提供的行李箱盖板的结构示意图。
其中，1-上层玻璃纤维毡，2-纸蜂窝，3-下层玻璃纤维毡，4-钢板，5-聚氨酯发泡层。
具体实施方式
下面通过具体实施方式来进一步说明本申请的技术方案。本领域技术人员应该明了，所述实施例仅仅是帮助理解本申请，不应视为对本申请的具体限制。
本申请实施例及对比例所用的聚氨酯发泡料是由质量比为1:1.6的A料和B料混合得到，其中，A料的牌号为GN8007，B料的牌号为44V20L；聚氨酯胶的牌号为1923。
实施例1
在本实施例中提供一种行李箱盖板，制备方法包括以下步骤：
(1)预埋：将两片长度均为800mm，宽度均为60mm，厚度均为2mm的钢板分别预埋于模具的上下型腔内；
(2)按照从上到下的顺序将克重为500g/m 2、厚度为1mm的上层玻璃纤维毡，克重为1200g/m 2、厚度为20mm的纸蜂窝和克重为500g/m 2、厚度为1mm的下层玻璃纤维毡铺放整齐，送入喷料舱，然后按照500g/m 2的喷洒量分别向上层玻璃纤维毡的上表面和下层玻璃纤维毡的下表面喷洒聚氨酯发泡料，得到半成品；
(3)压制成型带冲切：将步骤(2)得到的半成品送至模具中与步骤(1)预埋的钢板一起进行压制成型带冲切，得到盖板粗品；其中，模具为热模(温度为120℃)，压制成型带冲切的压力为15MPa，成型时间为55s；
(4)面毯滚胶：将克重为300g/m 2、厚度为2.5mm、材质为PET的面毯进行滚胶，得到滚胶后的面毯；其中，滚胶的胶水为聚氨酯胶，胶机温度为25℃，滚胶量为20g/m 2；
(5)包边：将步骤(3)得到的盖板粗品和步骤(4)得到的滚胶后的面毯放入包边设备中进行包边，得到所述行李箱盖板。
其中，步骤(3)中，将步骤(2)得到的半成品送至模具中，半成品在模具中位于两片钢板之间，两片钢板对称放置，其长度方向与半成品的长度方向平行。
本实施例提供的行李箱盖板的结构示意图如图1所示，其中，聚氨酯发泡层由聚氨酯发泡料发泡得到。
实施例2
在本实施例中提供一种行李箱盖板，制备方法包括以下步骤：
(1)预埋：将两片长度均为500mm，宽度均为20mm，厚度均为0.5mm的钢板分别预埋于模具的上下型腔内；
(2)按照从上到下的顺序将克重为400g/m 2、厚度为0.5mm的上层玻璃纤维毡，克重为600g/m 2、厚度为10mm的纸蜂窝和克重为400g/m 2、厚度为0.5mm的下层玻璃纤维毡铺放整齐，送入喷料舱，然后按照300g/m 2的喷洒量分别向上层玻璃纤维毡的上表面和下层玻璃纤维毡的下表面喷洒聚氨酯发泡料，得到半成品；
(3)压制成型带冲切：将步骤(2)得到的半成品送至模具中与步骤(1)预埋的钢板一起进行压制成型带冲切，得到盖板粗品；其中，模具为热模(温度为80℃)，压制成型带冲切的压力为5MPa，成型时间为50s；
(4)面毯滚胶：将克重为150g/m 2、厚度为1mm、材质为PET的面毯进行滚胶，得到滚胶后的面毯；其中，滚胶的胶水为聚氨酯胶，胶机温度为10℃，滚胶量为10g/m 2；
(5)包边：将步骤(3)得到的盖板粗品和步骤(4)得到的滚胶后的面毯放入包边设备中进行包边，得到所述行李箱盖板。
其中，步骤(3)中，将步骤(2)得到的半成品送至模具中，半成品在模具中位于两片钢板之间，两片钢板对称放置，其长度方向与半成品的长度方向平行。
实施例3
在本实施例中提供一种行李箱盖板，制备方法包括以下步骤：
(1)预埋：将两片长度均为1500mm，宽度均为100mm，厚度均为3mm的钢板分别预埋于模具的上下型腔内；
(2)按照从上到下的顺序将克重为700g/m 2、厚度为2mm的上层玻璃纤维毡，克重为1800g/m 2、厚度为30mm的纸蜂窝和克重为700g/m 2、厚度为2mm 的下层玻璃纤维毡铺放整齐，送入喷料舱，然后按照800g/m 2的喷洒量分别向上层玻璃纤维毡的上表面和下层玻璃纤维毡的下表面喷洒聚氨酯发泡料，得到半成品；
(3)压制成型带冲切：将步骤(2)得到的半成品送至模具中与步骤(1)预埋的钢板一起进行压制成型带冲切，得到盖板粗品；其中，模具为热模(温度为140℃)，压制成型带冲切的压力为20MPa，成型时间为60s；
(4)面毯滚胶：将克重为450g/m 2、厚度为5mm、材质为PET的面毯进行滚胶，得到滚胶后的面毯；其中，滚胶的胶水为聚氨酯胶，胶机温度为40℃，滚胶量为25g/m 2；
(5)包边：将步骤(3)得到的盖板粗品和步骤(4)得到的滚胶后的面毯放入包边设备中进行包边，得到所述行李箱盖板。
其中，步骤(3)中，将步骤(2)得到的半成品送至模具中，半成品在模具中位于两片钢板之间，两片钢板对称放置，其长度方向与半成品的长度方向平行。
实施例4
本实施例与实施例1不同之处仅在于，步骤(1)中两片钢板的厚度均为1mm。
实施例5
本实施例与实施例1不同之处仅在于，步骤(1)中两片钢板的厚度均为1.5mm。
实施例6
本实施例与实施例1不同之处仅在于，步骤(1)中两片钢板的厚度均为0.3 mm。
对比例1
本对比例与实施例1不同之处仅在于，将步骤(1)中两片钢板均替换为相同尺寸的合金铝板。
对比例2
本对比例与实施例1不同之处仅在于，将步骤(1)中预埋于模具上型腔内的钢板替换为相同尺寸的碳纤维板。
对比例3
本对比例与实施例1不同之处仅在于，将步骤(1)中预埋于模具下型腔内的钢板替换为相同尺寸的玻纤板。
对实施例1-6以及对比例1-3提供的行李箱盖板进行常温状态下的最大变形量测试，测试方法如下：将行李箱盖板的四边用长度为1m、宽度为4.5cm的铝合金管支撑，将接触面积直径为100mm，重量为100kg的负荷压在行李箱盖板的中心位置，测试2h后的行李箱盖板的最大变形量。
性能测试结果如表1所示。
表1
Figure PCTCN2022139578-appb-000001
由表1可以看出，本申请实施例1-5提供的行李箱盖板在常温状态下的最大变形量为8-15mm，承载性好。与实施例1相比，实施例6提供的行李箱盖板在常温状态下的最大变形量明显增大，这是由于钢板的厚度太小。与实施例1相比，对比例1-2提供的行李箱盖板在常温状态下的最大变形量均稍微增大，而对 比例3提供的行李箱盖板在常温状态下的最大变形量明显增大。
申请人声明，本申请通过上述实施例来说明本申请的行李箱盖板及其制备方法和应用，但本申请并不局限于上述实施例，即不意味着本申请必须依赖上述实施例才能实施。所属技术领域的技术人员应该明了，对本申请的任何改进，对本申请所选用原料的等效替换及辅助成分的添加、具体方式的选择等，均落在本申请的保护范围和公开范围之内。

Claims (10)

  1. 一种行李箱盖板的制备方法，其中，所述制备方法包括以下步骤：
    (1)预埋：将两片钢板分别预埋于模具的上下型腔内；
    (2)按照从上到下的顺序将上层玻璃纤维毡、纸蜂窝和下层玻璃纤维毡铺放整齐，送入喷料舱，然后向上层玻璃纤维毡的上表面和下层玻璃纤维毡的下表面喷洒聚氨酯发泡料，得到半成品；
    (3)压制成型带冲切：将步骤(2)得到的半成品送至模具中与步骤(1)预埋的钢板一起进行压制成型带冲切，得到盖板粗品；
    (4)面毯滚胶：将面毯进行滚胶，得到滚胶后的面毯；
    (5)包边：将步骤(3)得到的盖板粗品和步骤(4)得到的滚胶后的面毯放入包边设备中进行包边，得到所述行李箱盖板。
  2. 根据权利要求1所述的制备方法，其中，步骤(1)所述钢板的长度为500～1500mm，宽度为20～100mm，厚度为0.5～3mm。
  3. 根据权利要求1或2所述的制备方法，其中，步骤(2)所述上层玻璃纤维毡和下层玻璃纤维毡的克重各自独立地为400～700g/m 2；
    可选地，步骤(2)所述上层玻璃纤维毡和下层玻璃纤维毡的厚度各自独立地为0.5～2mm。
  4. 根据权利要求1-3中任一项所述的制备方法，其中，步骤(2)所述纸蜂窝的克重为600～1800g/m 2；
    可选地，步骤(2)所述纸蜂窝的厚度为10～30mm；
    可选地，步骤(2)所述聚氨酯发泡料的喷洒量为300～800g/m 2。
  5. 根据权利要求1-4中任一项所述的制备方法，其中，步骤(3)所述模具为热模；
    可选地，所述热模的温度为80～140℃；
    可选地，步骤(3)所述压制成型带冲切的压力为5～20MPa，成型时间为50～60s。
  6. 根据权利要求1-5中任一项所述的制备方法，其中，步骤(4)所述面毯的克重为150～450g/m 2；
    可选地，步骤(4)所述面毯的材质为聚对苯二甲酸乙二醇酯；
    可选地，步骤(4)所述面毯的厚度为1～5mm。
  7. 根据权利要求1-6中任一项所述的制备方法，其中，步骤(4)所述滚胶的胶水为聚氨酯胶；
    可选地，步骤(4)所述滚胶的胶机温度为10℃～40℃；
    可选地，步骤(4)所述滚胶的滚胶量为10～25g/m 2。
  8. 根据权利要求1-7中任一项所述的制备方法，其中，所述制备方法包括以下步骤：
    (1)预埋：将两片长度为500～1500mm，宽度为20～100mm，厚度为0.5～3mm的钢板分别预埋于模具的上下型腔内；
    (2)按照从上到下的顺序将克重为400～700g/m 2的上层玻璃纤维毡、克重为600～1800g/m 2的纸蜂窝和克重为400～700g/m 2的下层玻璃纤维毡铺放整齐，送入喷料舱，然后按照300～800g/m 2的喷洒量分别向上层玻璃纤维毡的上表面和下层玻璃纤维毡的下表面喷洒聚氨酯发泡料，得到半成品；
    (3)压制成型带冲切：将步骤(2)得到的半成品送至模具中与步骤(1)预埋的钢板一起进行压制成型带冲切，得到盖板粗品；其中，模具为热模，压制成型带冲切的压力为5～20MPa，成型时间为50～60s；
    (4)面毯滚胶：将克重为150～450g/m 2的面毯进行滚胶，得到滚胶后的面毯；其中，滚胶的胶水为聚氨酯胶，胶机温度为10℃～40℃，滚胶量为10～25g/m 2；
    (5)包边：将步骤(3)得到的盖板粗品和步骤(4)得到的滚胶后的面毯放入包边设备中进行包边，得到所述行李箱盖板。
  9. 一种行李箱盖板，其中，所述行李箱盖板根据权利要求1-8中任一项所述的制备方法制备得到。
  10. 一种如权利要求9所述的行李箱盖板在汽车行李箱中的应用。
PCT/CN2022/139578 2022-10-31 2022-12-16 一种行李箱盖板及其制备方法和应用 WO2024092971A1 (zh)

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