CN102070838A - Nano polypropylene composite material - Google Patents

Nano polypropylene composite material Download PDF

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CN102070838A
CN102070838A CN 201010618892 CN201010618892A CN102070838A CN 102070838 A CN102070838 A CN 102070838A CN 201010618892 CN201010618892 CN 201010618892 CN 201010618892 A CN201010618892 A CN 201010618892A CN 102070838 A CN102070838 A CN 102070838A
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nano
polypropylene
calcium carbonate
parts
composite material
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CN102070838B (en
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任立元
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东莞市赛泽康纳米科技有限公司
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Abstract

The invention belongs to the technical field of composite materials and in particular relates to a nano polypropylene composite material. The nano polypropylene composite material is obtained by mixing 80 to 120 parts of polypropylene, 10 to 25 parts of nano calcium carbonate and 30 to 50 parts of heavy calcium carbonate, uniformly stirring the components and extruding by using a dual screw granulation extruder. By adoption of the mode of mixing the nano calcium carbonate and the heavy calcium carbonate, the cost is reduced, the defect of filling of the polypropylene by independently using the nano calcium carbonate and the heavy calcium carbonate is overcome, and the surface performance of the composite polypropylene material is improved effectively on the basis of keeping good physical mechanical performance.

Description

一种纳米聚丙烯复合材料 Nano polypropylene composite material

技术领域 FIELD

[0001] 本发明属于复合材料技术领域,具体涉及一种纳米聚丙烯复合材料。 [0001] The present invention belongs to the technical field of composite materials, in particular to a nano-composite polypropylene. 背景技术 Background technique

[0002] 聚丙烯复合材料通常采用的添加剂有重质碳酸钙和纳米碳酸钙,两者各有优缺 [0002] The polypropylene composite materials commonly used additives are calcium carbonate and calcium carbonate, both have their advantages and disadvantages

点ο Point ο

[0003] 重质碳酸钙不仅成本低而且可提高聚丙烯复合材料的抗冲击强度,但是重质碳酸钙在添加到聚丙烯复合材料的时候,往往会影响聚丙烯复合材料的表面性能,如会出现表面发白的现象。 [0003] Heavy calcium carbonate not only low cost but also to improve the impact strength of the polypropylene composite material, the calcium carbonate is added to the polypropylene composite material, it often affects the surface properties of polypropylene composites, as will be surface whitening phenomenon.

[0004] 纳米碳酸钙虽成本高,但它可以提高聚丙烯的抗冲击强度,改善聚丙烯表面性能,如改善光泽度和提高抗划伤性能等,所以纳米碳酸钙经常被用作聚丙烯复合材料的添加剂。 [0004] Nano-calcium carbonate, although costly, but it can improve the impact strength of polypropylene, polypropylene improve surface properties such as improved gloss and improved scratch resistance, etc., it is frequently used as nano-calcium carbonate composite polypropylene additive material. 如申请号为01108269的中国发明专利介绍了一种纳米碳酸钙-聚丙烯复合材料及其制备方法,它主要由聚丙烯组成,其中含有0.25-30%(m/m)的纳米CaCO3 ;申请号为200610156323的中国发明专利公开了一种纳米碳酸钙聚丙烯复合材料,该复合材料包含100份聚丙烯树脂、1-15份纳米碳酸钙、1-20份弹性体、0. 1-1份稳定剂。 The application number of Chinese invention patent 01108269 describes a nano-calcium carbonate - polypropylene composite material and its preparation method, which is mainly composed of polypropylene, which contains 0.25-30% (m / m) Nano - CaCO3; Application No. Chinese invention patent is 200610156323 discloses a nano-calcium carbonate polypropylene composite material, the composite material comprising 100 parts of a polypropylene resin, 1-15 parts of calcium carbonate, 1-20 parts of elastomer, 0 1-1 parts by stable agents.

[0005] 但是研究结果表明随着纳米碳酸钙添加量的增加,聚丙烯复合材料的抗冲击强度先增加,然后降低。 [0005] However, as the results show that increasing the addition amount of calcium carbonate, the impact strength of the polypropylene composite first increases, then decreases. 这是因为随着纳米碳酸钙的添加量的增加使得纳米碳酸钙自身的团聚现象越来越严重,进而造成聚丙烯复合材料的抗冲击强度降低。 This is because as the added amount of the nano-calcium carbonate such that the nano-calcium carbonate agglomerated itself more and more serious, thereby resulting in reduced impact strength of a polypropylene composite material. 出于对聚丙烯复合材料在抗冲击强度方面的考虑,纳米碳酸钙的添加量受到一定的限制,由于限制了纳米碳酸钙的添加量所以聚丙烯复合材料的表面性能得不到有效改善。 For reasons of strength the polypropylene composite material of the impact, nano-calcium carbonate is added in an amount subject to certain restrictions, by limiting the amount of nano-calcium carbonate is added so that the surface properties of a polypropylene composite material can not be effectively improved.

发明内容 SUMMARY

[0006] 本发明的目的是提供一种成本低、既能保持良好的物理机械性能又能改善聚丙烯材料表面性能的纳米聚丙烯复合材料。 [0006] The object of the present invention is to provide a low cost, not only to maintain the good mechanical properties of polypropylene can improve the surface properties of the nano-material polypropylene composite material.

[0007] 本发明的目的是这样实现的: [0007] The object of the present invention is implemented as follows:

一种纳米聚丙烯复合材料,它包括以下重量份的原料: 聚丙烯 80-120份 Nano polypropylene composite material, comprising the following parts by weight of the starting material: Polypropylene 80-120 parts

纳米碳酸钙 10-25份 10-25 parts by nano-calcium carbonate

重质碳酸钙 30-50份。 30-50 parts by weight of calcium carbonate.

[0008] 优选的,它包括以下重量份的原料: 聚丙烯 90-110份 [0008] Preferably, it comprises the following parts by weight of the starting material: Polypropylene 90-110 parts

纳米碳酸钙 15-25份 15-25 parts by nano-calcium carbonate

重质碳酸钙 35-45份。 35-45 parts by weight of calcium carbonate.

[0009] 更为优选的,它包括以下重量份的原料: 聚丙烯 100份 [0009] More preferably, it comprises the following parts by weight of the starting material: 100 parts of polypropylene

纳米碳酸钙 20份重质碳酸钙 40份。 40 parts calcium carbonate 20 parts by weight of nano-calcium carbonate.

[0010] 所述纳米碳酸钙的粒径为50-150纳米。 [0010] The nano-calcium carbonate particle diameter of 50-150 nm.

[0011] 所述重质碳酸钙的粒径为2000-2500目。 The [0011] heavy calcium carbonate particle diameter of 2000-2500 mesh.

[0012] 所述纳米聚丙烯复合材料还包括助剂。 [0012] The polypropylene composite nano material further comprises additives.

[0013] 纳米聚丙烯复合材料还包括助剂,所述助剂为增塑剂、热稳定剂、抗氧剂、光稳定剂、阻燃剂、发泡剂、抗静电剂、防霉剂、着色剂中的一种或任意几种,可根据需要按常规添加量进行添加。 [0013] Nano-polypropylene composite material further comprises additives, the auxiliaries are plasticizers, heat stabilizers, antioxidants, light stabilizers, flame retardants, foaming agents, antistatic agents, preservatives, one or any of several colorants may be added according to need to add conventional amounts.

[0014] 所述纳米聚丙烯复合材料的制备方法是将上述配方量的原料混合,搅拌均勻后通过双螺杆造粒挤机挤出。 [0014] The method of preparing the nano-composite material is a polypropylene material mixing amount of the above formulation, after mixing extruder with a twin screw extrusion granulation.

[0015] 所述双螺杆造粒挤机挤出造粒时前段、中段和后段的温度分别为200°C、21(TC、 190 °C。 [0015] The twin screw extrusion machine extrusion granulator granulation anterior, middle, and rear stage temperature were 200 ° C, 21 (TC, 190 ° C.

[0016] 本发明的有益效果为:本发明利用纳米碳酸钙的小质量和高表面能,使得纳米碳酸钙附着在重质碳酸钙表面,形成核\壳层的复合结构。 [0016] Advantageous effects of the present invention are: the use of nano-calcium carbonate of the present invention low-mass and high surface energy, so that the nano-calcium carbonate heavy calcium carbonate attached to the surface, forming a composite structure core \ shell. 在混炼的过程中,纳米碳酸钙附着在重质碳酸钙的表面随着重质碳酸钙一起运动,有效避免了纳米碳酸钙的团聚现象;另外由于纳米碳酸钙具有高的表面能,它与聚丙烯高分子链的结合更加紧密,因此重质碳酸钙可以通过附着在其表面的纳米碳酸钙与聚丙烯高分子链结合,使得聚丙烯复合材料表面更加平整,光泽性能更好,表面抗划伤能力更强;没有附着在重质碳酸钙表面的纳米碳酸钙将填充到聚丙烯复合材料的各种间隙,表现出纳米材料的各种优点。 In the process of kneading, nano-calcium carbonate adhere to the surface of the heavy calcium carbonate heavy calcium carbonate move together as to effectively prevent the agglomeration of the nano-calcium carbonate; Further since the nano-calcium carbonate having a high surface energy, it is poly propylene polymer chains bound more tightly, so heavy calcium carbonate can be adhered to the nano-calcium carbonate with the surface of a polypropylene polymer chain binding, so that the more smooth the surface of the polypropylene composite material, better gloss, surface scratch resistance stronger; nano-calcium carbonate is not adhered to the surface of the heavy calcium carbonate filling various gaps in the polypropylene composite material, exhibits various advantages nanomaterials. 本发明采用纳米碳酸钙和重质碳酸钙相结合的方式,降低了成本,克服了单独使用重质碳酸钙和纳米碳酸钙填充聚丙烯的缺点,在保持良好物理机械性能的基础上,有效改善了复合聚丙烯材料的表面性能。 The present invention is by way of nano-calcium carbonate and heavy calcium carbonate in combination, reduce the cost, overcomes the disadvantages of heavy calcium carbonate alone and nano-calcium carbonate filled polypropylene, while maintaining the good mechanical properties, improve polypropylene surface properties of the composite material.

具体实施方式 Detailed ways

[0017] 下面通过实施例对本发明作进一步说明,但本发明的实施范围并不限于此。 [0017] Next, the present invention is further illustrated by the examples, but the scope of the present invention is not limited thereto.

[0018] 实施例1 [0018] Example 1

将80Kg聚丙烯、IOKg粒径为50纳米的纳米碳酸钙、50Kg粒径为2500目的重质碳酸钙混合,搅拌均勻后通过双螺杆造粒挤机挤出,双螺杆造粒挤机挤出造粒时前段、中段和后段的温度分别为199 °C、211 °C、191 °C。 The 80Kg polypropylene, IOKg particle diameter of 50 nanometers calcium carbonate, 50Kg particle diameter of 2500 purpose of heavy calcium carbonate were mixed uniformly stirred extruded through a twin screw extrusion granulating machine, a twin screw extrusion granulator making extruded when tablets anterior, middle, and rear stage temperature were 199 ° C, 211 ° C, 191 ° C.

[0019] 本实施例制得的纳米聚丙烯复合材料的物理机械性能: [0019] In the present embodiment prepared a polypropylene composite nano-mechanical properties:

Figure CN102070838AD00041

[0020] 本实施例制得的纳米聚丙烯复合材料的表面性能:表面光泽,无发白的现象,用手指在表面刮划没有明显的划痕。 The surface properties of polypropylene nanocomposite prepared in Example embodiment [0020] The present: surface gloss, no blush phenomenon, no scratching with a finger on the surface of visible scratches.

[0021] 实施例2 [0021] Example 2

将90Kg聚丙烯、15Kg粒径为120纳米的纳米碳酸钙、35Kg粒径为2000目的重质碳酸钙混合,搅拌均勻后通过双螺杆造粒挤机挤出,双螺杆造粒挤机挤出造粒时前段、中段和后段的温度分别为201°C、212°C、189°C。 The polypropylene 90Kg, 15Kg particle diameter of 120 nanometers calcium carbonate, 35Kg particle diameter of 2000 purpose of heavy calcium carbonate mixture, stir extrusion granulation through a twin screw extruder, twin-screw extrusion granulator making extruded when tablets anterior, middle, and rear stage temperature were 201 ° C, 212 ° C, 189 ° C. [0022] 本实施例制得的纳米聚丙烯复合材料的物理机械性能: [0022] In the present embodiment prepared a polypropylene composite nano-mechanical properties:

熔体流动速率(g/10 分钟) 拉伸强度(Mpa) 断裂伸长率(%〉 Izod 缺口冲击强度(J/m) 弯曲模簠(Mpa) 洛氏硬度(R) 热变形溫度(0C)13.1 289 >200 411 1159 108 132 Melt flow rate (g / 10 min) Tensile strength (Mpa) Elongation at break (%> Izod notched impact strength (J / m) Flexural Modulus basket used in state worship (Mpa) (R & lt) Rockwell hardness heat distortion temperature (0C) 13.1 289> 2,004,111,159,108,132

[0023] 本实施例制得的纳米聚丙烯复合材料的表面性能:表面光泽,无发白的现象,用手指在表面刮划没有明显的划痕。 [0023] The present embodiment prepared a polypropylene surface nano embodiment Composites: surface gloss, no blush phenomenon, no scratching with a finger on the surface of visible scratches.

[0024] 实施例3 [0024] Example 3

将IOOKg聚丙烯、20Kg粒径为100纳米的纳米碳酸钙、40Kg粒径为2000目的重质碳酸钙混合,搅拌均勻后通过双螺杆造粒挤机挤出,双螺杆造粒挤机挤出造粒时前段、中段和后段的温度分别为200°C、210°C、19(rC。 The IOOKg polypropylene, 20Kg particle diameter of 100 nanometers calcium carbonate, 40Kg particle diameter of 2000 purpose of heavy calcium carbonate were mixed uniformly stirred extruded through a twin screw extrusion granulating machine, a twin screw extrusion granulator making extruded when tablets anterior, middle, and rear stage temperature were 200 ° C, 210 ° C, 19 (rC.

[0025] 本实施例制得的纳米聚丙烯复合材料的物理机械性能: [0025] The present embodiment the polypropylene obtained composite nano-mechanical properties:

熔体流动 拉伸强度 断裂伸长 Izod 缺口 穹曲模簠 洛氏硬度 热变形溫速率(g/10 (IvfPa) 率(%) 冲击强度 (MPa) (R) 度(0C)分钟) (J/m) 13J 28.7 >200 415 1152 105 135 The melt flow tensile strength elongation at break Izod notched curved dome die basket used in state worship heat distortion temperature and the Rockwell hardness rate (rate g / 10 (IvfPa) (%) Impact strength (MPa) (R) degrees (0C) min) (J / m) 13J 28.7> 200 415 1152 105 135

[0026] 实施例制得的纳米聚丙烯复合材料的表面性能:表面光泽,无发白的现象,用手指在表面刮划没有明显的划痕。 The surface properties of nano-Polypropylene Composites [0026] Example prepared: surface gloss, no blush phenomenon, no scratching with a finger on the surface of visible scratches.

[0027] 实施例4 [0027] Example 4

将120Kg聚丙烯、25Kg粒径为150纳米的纳米碳酸钙、50Kg粒径为2100目的重质碳酸钙混合,搅拌均勻后通过双螺杆造粒挤机挤出,双螺杆造粒挤机挤出造粒时前段、中段和后段的温度分别为200°C、209°C、191°C。 The polypropylene 120Kg, 25Kg a particle size of 150 nanometers calcium carbonate, 50Kg particle diameter of 2100 purpose of heavy calcium carbonate were mixed uniformly stirred extruded through a twin screw extrusion granulating machine, a twin screw extrusion granulator making extruded when tablets anterior, middle, and rear stage temperature were 200 ° C, 209 ° C, 191 ° C.

[0028] 本实施例制得的纳米聚丙烯复合材料的物理机械性能: [0028] This embodiment obtained nano polypropylene composite material mechanical properties:

熔体流动速率(g/10 分钟) 拉伸强度(MPa) 断裂伸长率(%) Izod 缺口冲击强度(J/m) 弯曲模重(MPa) 洛ft硬度(R) 热变形溫度(0C)13.7 28.1 >200 421 1150 UO 130 Melt flow rate (g / 10 min) Tensile strength (MPa) Elongation at break (%) Izod notched impact strength (J / m) Flexural Modulus weight (MPa) ft Rockwell Hardness (R) heat distortion temperature (0C) 13.7 28.1> 200 421 1150 UO 130

[0029] 本实施例制得的纳米聚丙烯复合材料的表面性能:表面光泽,无发白的现象,用手指在表面刮划没有明显的划痕。 The surface properties of polypropylene nanocomposite prepared in Example embodiment [0029] The present: surface gloss, no blush phenomenon, no scratching with a finger on the surface of visible scratches.

[0030] 实施例5 [0030] Example 5

将IOOKg聚丙烯、20Kg粒径为110纳米的纳米碳酸钙、40Kg粒径为2500目的重质碳酸钙和3Kg氢氧化镁阻燃剂混合,搅拌均勻后通过双螺杆造粒挤机挤出,双螺杆造粒挤机挤出造粒时前段、中段和后段的温度分别为200°C、210°C、190°C。 The IOOKg polypropylene, 20Kg particle diameter of 110 nanometers calcium carbonate, 40Kg particle diameter of 2500 purpose of heavy calcium carbonate and flame retardants 3Kg mixing magnesium hydroxide, stir and extruded through a twin screw extrusion granulating machine, bis when extrusion granulation machine screw extrusion granulation anterior, middle, and rear stage temperature were 200 ° C, 210 ° C, 190 ° C.

[0031] 本实施例制得的纳米聚丙烯复合材料的物理机械性能: [0031] Example embodiment of the present nano-obtained physical and mechanical properties of polypropylene composites:

熔体流动 拉伸强度 断裂伸长 Izodft 口 穹曲模簠 洛ft硬度 热变形溫速率(g/10 (MPa) 率(%) 冲击强度 (_a) (R) 度(0C)分钟) (J/m) 12.1 26.1 >200 415 1152 100 132[0032] 本实施例制得的纳米聚丙烯复合材料的表面性能:表面光泽,无发白的现象,用手指在表面刮划没有明显的划痕。 The melt flow port tensile strength elongation at break Izodft curved dome die basket used in state worship Rockwell hardness ft heat distortion temperature rate (Rate (%) Impact Strength g / 10 (MPa) (_a) (R) degrees (0C) min) (J / m) 12.1 26.1> surface properties of polypropylene composites 2,004,151,152,100,132 [0032] the present embodiment prepared nano embodiment: surface gloss, no blush phenomenon, no scratching with a finger on the surface of visible scratches.

[0033] 实施例6 [0033] Example 6

将120Kg聚丙烯、20Kg粒径为120纳米的纳米碳酸钙、50Kg粒径为2200目的重质碳酸钙、IKg 二氧化钛光稳定剂混合,搅拌均勻后通过双螺杆造粒挤机挤出,双螺杆造粒挤机挤出造粒时前段、中段和后段的温度分别为200°C、211°C、190°C。 The polypropylene 120Kg, 20Kg particle diameter of 120 nanometers calcium carbonate, 50Kg particle diameter of 2200 purpose of heavy calcium carbonate, titanium oxide IKG two light stabilizer, stir extrusion through a twin screw extruder granulator, a twin-screw made when extrusion granulation tablets extrusion machine anterior, middle, and rear stage temperature were 200 ° C, 211 ° C, 190 ° C.

[0034] 本实施例制得的纳米聚丙烯复合材料的物理机械性能: [0034] This embodiment obtained nano polypropylene composite material mechanical properties:

熔体流动速率(§αο 分钟) 拉伸强度(MPa) 断裂伸长率(%) Izod 缺P 冲击强度(J/m) 穹曲模重(MPa) 洛氏硬度(R) 热变形溫度(0C)13.7 25.4 >200 408 1140 101 133 The melt flow rate (§αο min) Tensile strength (MPa) Elongation at break (%) Izod impact strength P deficiency (J / m) Weight at curved dome (MPa) Rockwell hardness (R) heat distortion temperature (0C ) 13.7 25.4> 2,004,081,140,101,133

[0035] 本实施例制得的纳米聚丙烯复合材料的表面性能:表面光泽,无发白的现象,用手指在表面刮划没有明显的划痕。 [0035] The embodiment of the present embodiment prepared a polypropylene surface nano composites: surface gloss, no blush phenomenon, no scratching with a finger on the surface of visible scratches.

[0036] 以上所述仅是本发明的较佳实施方式,故凡依本发明专利申请范围所述的构造、 特征及原理所做的等效变化或修饰,均包括于本发明专利申请范围内。 [0036] The above are only preferred embodiments of the present invention, where it is under this structure, characteristics and principles of the scope of the invention patent applications made equivalent variations or modifications are included in the patent application within the scope of the invention .

Claims (9)

1. 一种纳米聚丙烯复合材料,其特征在于:它包括以下重量份的原料:聚丙烯 80-120份纳米碳酸钙 10-25份重质碳酸钙 30-50份。 A nano-polypropylene composite material, characterized in that: it comprises the following parts by weight of the starting material: Polypropylene 80-120 parts by nano-calcium carbonate 10-25 parts 30-50 parts by weight of calcium carbonate.
2.根据权利要求1所述的一种纳米聚丙烯复合材料,其特征在于:它包括以下重量份的原料:聚丙烯 90-110份纳米碳酸钙 15-25份重质碳酸钙 35-45份。 A nano according to claim 1 polypropylene composite material, characterized in that: it comprises the following parts by weight of the starting material: Polypropylene 90-110 parts by weight of nano-calcium carbonate 15-25 parts 35-45 parts of calcium carbonate .
3.根据权利要求1所述的一种纳米聚丙烯复合材料,其特征在于:它包括以下重量份的原料:聚丙烯 100份纳米碳酸钙 20份重质碳酸钙 40份。 According to claim 1, wherein said nano polypropylene composite material, characterized in that: it comprises the following parts by weight of the starting material: Polypropylene 100 parts Calcium carbonate 20 parts by weight of nano-calcium carbonate 40 parts.
4.根据权利要求1至3任一项所述的一种纳米聚丙烯复合材料,其特征在于:所述纳米碳酸钙的粒径为50-150纳米。 Polypropylene according to claim 1 to any one of claims nano composite material 3, characterized in that: the nano-calcium carbonate particle size of 50 to 150 nm.
5.根据权利要求1至3任一项所述的一种纳米聚丙烯复合材料,其特征在于:所述重质碳酸钙的粒径为2000-2500目。 Polypropylene according to claim 1 to any one of claims nano composite material 3, wherein: the particle size of the calcium carbonate 2000-2500 mesh.
6.根据权利要求1至3任一项所述的一种纳米聚丙烯复合材料,其特征在于:所述纳米聚丙烯复合材料还包括助剂。 6. 1-3 according to any one of a nano-polypropylene composite material according to claim, wherein: said material further comprises a polypropylene composite nano additives.
7.根据权利要求6所述的一种纳米聚丙烯复合材料,其特征在于:所述助剂为增塑剂、 热稳定剂、抗氧剂、光稳定剂、阻燃剂、发泡剂、抗静电剂、防霉剂、着色剂中的一种或任意几种。 A nano according to claim 6, said polypropylene composite material, wherein: said plasticizer aids, heat stabilizers, antioxidants, light stabilizers, flame retardants, blowing agents, one or any of several anti-static agents, preservatives, colorants.
8.根据权利要求1至3任一项所述的一种纳米聚丙烯复合材料,其特征在于:所述纳米聚丙烯复合材料的制备方法是将上述配方量的原料混合,搅拌均勻后通过双螺杆造粒挤机挤出。 According to claim 1 according to any one nano-polypropylene composite material 3, characterized in that: The method of preparing the nano-composite material is a polypropylene material mixing amount of the above formulation, after mixing by bis screw extrusion granulator extruded.
9.根据权利要求8所述的一种纳米聚丙烯复合材料,其特征在于:所述双螺杆造粒挤机挤出造粒时前段、中段和后段的温度分别为200°C、210°C、190°C。 According to claim 8, wherein said nano polypropylene composite material, wherein: said twin screw extrusion granulator extrusion granulation machine anterior, middle, and rear stage temperature were 200 ° C, 210 ° C, 190 ° C.
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