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CN101737570B - Glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubular product - Google Patents

Glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubular product Download PDF

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CN101737570B
CN101737570B CN2010101093823A CN201010109382A CN101737570B CN 101737570 B CN101737570 B CN 101737570B CN 2010101093823 A CN2010101093823 A CN 2010101093823A CN 201010109382 A CN201010109382 A CN 201010109382A CN 101737570 B CN101737570 B CN 101737570B
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tube
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CN101737570A (en
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韩子斌
郝建忠
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Tianjin Yehe Technology Co ltd
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Abstract

玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材，它涉及一种缠绕结构壁管材。本发明解决了现有聚乙烯缠绕结构壁管材环刚度低的问题。本发明结构壁管材由支撑管和加强层组成，所述支撑管由熔融态带状物缠绕形成管状结构，所述加强层由加强肋管构成，所述加强肋管从内到外由聚丙烯支撑管、玻纤树脂层和聚乙烯包覆层构成。本发明管径为DN2000mm的玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材的环刚度为8.2kN/m 2，本发明的玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材在保持克拉管性能的同时，提高了管材的环刚度，特别对大直径管材效果尤为明显，在同样用料的前提下环刚度提高2～3倍 。

The invention relates to a glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe, which relates to a winding structure wall pipe. The invention solves the problem of low ring rigidity of the wall pipe material of the existing polyethylene winding structure. The structural wall pipe of the present invention is composed of a support pipe and a reinforcement layer. The support pipe is wound by a molten ribbon to form a tubular structure. The reinforcement layer is composed of a ribbed tube. The ribbed tube is made of polypropylene It is composed of support tube, glass fiber resin layer and polyethylene cladding layer. The ring stiffness of the glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe with a pipe diameter of DN2000mm in the present invention is 8.2kN/m 2 , and the glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe of the present invention can maintain the performance of the carat tube At the same time, the ring stiffness of the pipe is improved, especially for large-diameter pipes, and the ring stiffness is increased by 2 to 3 times under the premise of the same material.

Description

玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材Glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe

技术领域 technical field

本发明涉及一种缠绕结构壁管材。The present invention relates to a winding structural wall pipe.

背景技术 Background technique

聚乙烯缠绕结构壁管材的应用在中国已有10年以上的历史，种类繁多按国家标准GB/T 19472.2-2004的划分为：The application of polyethylene winding structural wall pipes has a history of more than 10 years in China, and there are various types according to the national standard GB/T 19472.2-2004:

第一部分：聚乙烯双壁波纹管材Part 1: Polyethylene double-wall corrugated pipe

第二部分：聚乙烯缠绕结构壁管材Part II: Polyethylene Wound Structural Wall Tubing

第二部分又分为“A”型和“B”型(其中“B”型简称克拉管)。The second part is divided into "A" type and "B" type (where "B" type is referred to as carat tube).

克拉管是德国克拉公司于上世纪八十年代末发明的，其特点是利用聚乙烯的成型特性，采取特殊的工艺形成外表面异型内表面光滑的管材，在同样用料的情况下可以达到更高的环刚度，同时可以使大直径管材的生产得以实现(最大直径可达4米)。The carat tube was invented by the German carat company in the late 1980s. It is characterized in that it uses the molding characteristics of polyethylene and adopts a special process to form a pipe with a special shape on the outer surface and a smooth inner surface. The high ring stiffness also enables the production of large diameter pipes (up to 4 meters in diameter).

克拉管于90年代末引入中国，目前仍是国内最好的排水管材，在重点工程中所占比例达到80％以上。Carat pipe was introduced to China in the late 1990s, and it is still the best drainage pipe material in China, accounting for more than 80% of key projects.

使用克拉管的优点很多，但也有一定的局限，由于聚乙烯本身的理化指标导致管材的环刚度低，如达到环刚度8KN/m2将使用大量的原料，提高了造价的同时也造成了材料的浪费。特别是大直径的管材(DN1500mm以上)尤为严重，而随着我国对环保的重视，在排水这个领域对大直径管材的需求越来越多，因此提高优质大直径管材环刚度的同时又能使价格不大幅提高显得十分重要和迫切。There are many advantages to using carat tubes, but there are also certain limitations. Due to the physical and chemical indicators of polyethylene itself, the ring stiffness of the tube is low. If the ring stiffness reaches 8KN/ m2 , a large amount of raw materials will be used, which will increase the cost and cause material damage. waste. Especially for large-diameter pipes (above DN1500mm), it is particularly serious. With the emphasis on environmental protection in our country, there is an increasing demand for large-diameter pipes in the field of drainage. Therefore, improving the ring stiffness of high-quality large-diameter pipes can also make It is very important and urgent not to increase the price significantly.

发明内容 Contents of the invention

本发明的发明目的是为了解决现有聚乙烯缠绕结构壁管材环刚度低的问题，提供了一种玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材的方法。The object of the present invention is to solve the problem of low ring stiffness of existing polyethylene winding structure wall pipes, and provide a method for glass fiber polyethylene composite reinforced polyethylene winding structure wall pipes.

本发明第一种玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材由支撑管和加强层组成，所述支撑管由熔融态带状物缠绕形成管状结构，所述加强层由一层加强肋管构成，所述加强肋管缠绕在熔融态带状物缝隙上，所述加强肋管从内到外由聚丙烯支撑管、玻纤树脂层和聚乙烯包覆层构成。The first glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe of the present invention is composed of a support pipe and a reinforcement layer. The support pipe is wound by a molten ribbon to form a tubular structure. The rib tube is wound on the gap of the molten strip, and the rib tube is composed of a polypropylene support tube, a glass fiber resin layer and a polyethylene coating layer from the inside to the outside.

本发明第二种玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材由支撑管和加强层组成，所述支撑管由熔融态带状物缠绕形成管状结构，所述加强层由两层加强肋管构成，第一层加强肋管缠绕在熔融态带状物缝隙上，第二层加强肋管缠绕在第一层加强肋管的缝隙间，所述加强肋管从内到外由聚丙烯支撑管、玻纤树脂层和聚乙烯包覆层构成。The second glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe of the present invention is composed of a support pipe and a reinforcement layer, the support pipe is wound by a molten ribbon to form a tubular structure, and the reinforcement layer is composed of two layers of ribbed pipes The first layer of ribbed tubes is wound on the gap of the molten strip, the second layer of ribbed tubes is wound between the gaps of the first layer of ribbed tubes, and the ribbed tubes are supported by polypropylene from the inside to the outside. , glass fiber resin layer and polyethylene coating layer.

本发明第三种玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材由支撑管和加强层组成，所述支撑管由熔融态带状物缠绕形成管状结构，所述加强层由多层加强肋管构成，第一层加强肋管缠绕在熔融态带状物缝隙上，其他层加强肋管缠绕在其相邻层加强肋管的缝隙间，所述加强肋管从内到外由聚丙烯支撑管、玻纤树脂层和聚乙烯包覆层构成。The third glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe of the present invention is composed of a support pipe and a reinforcement layer, the support pipe is wound by a molten ribbon to form a tubular structure, and the reinforcement layer is composed of a multi-layer reinforcement rib pipe The first layer of ribbed tubes is wound on the gap of the molten strip, and the other layers of ribbed tubes are wound between the gaps between the adjacent layers of ribbed tubes. The ribbed tubes are supported by polypropylene tubes from the inside to the outside. , glass fiber resin layer and polyethylene coating layer.

上述所述熔融态带状物的材料是聚乙烯；上述述玻纤树脂层由聚乙烯和玻璃短纤维组成，玻纤树脂层中玻璃短纤维的重量百分比为15％～18％，所述玻璃短纤维的直径为0.10mm～0.18mm，长度为6mm～25mm。The material of the above-mentioned molten strip is polyethylene; the above-mentioned glass fiber resin layer is composed of polyethylene and glass short fibers, and the weight percentage of glass short fibers in the glass fiber resin layer is 15% to 18%. The short fiber has a diameter of 0.10 mm to 0.18 mm and a length of 6 mm to 25 mm.

本发明管径为DN2000mm的玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材的环刚度为8.2KN/m2(相同型号采用聚乙烯为原料管材的环刚度仅为3.8KN/m2)，本发明的玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材在保持克拉管性能的同时，提高了管材的环刚度，特别对大直径管材效果尤为明显，在同样用料的前提下环刚度提高2～3倍。The ring stiffness of the glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe with a pipe diameter of DN2000mm in the present invention is 8.2KN/m 2 (the ring stiffness of the same model using polyethylene as a raw material pipe is only 3.8KN/m 2 ), the present invention The invented glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe not only maintains the performance of the carat pipe, but also improves the ring stiffness of the pipe, especially for large diameter pipes. The ring stiffness is increased by 2~ 3 times.

附图说明 Description of drawings

图1是具体实施方式一所得玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材的纵剖图；图2是具体实施方式四所得玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材的纵剖图；图3是具体实施方式七所得玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材的纵剖图。Fig. 1 is the longitudinal sectional view of the obtained glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe in embodiment 1; Fig. 2 is the longitudinal sectional view of the obtained glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe in embodiment 4; Fig. 3 is a longitudinal sectional view of the glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe obtained in Embodiment 7.

具体实施方式 Detailed ways

本发明技术方案不局限于以下所列举具体实施方式，还包括各具体实施方式间的任意组合。The technical solution of the present invention is not limited to the specific embodiments listed below, but also includes any combination of the specific embodiments.

具体实施方式一：本实施方式中玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材由支撑管1和加强层2组成，所述支撑管1由熔融态带状物缠绕形成管状结构，所述加强层2由一层加强肋管3构成，所述加强肋管3缠绕在熔融态带状物缝隙上，所述加强肋管3从内到外由聚丙烯支撑管4、玻纤树脂层5和聚乙烯包覆层6构成。Embodiment 1: In this embodiment, the glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe is composed of a support pipe 1 and a reinforcement layer 2. The support pipe 1 is wound by a molten ribbon to form a tubular structure. The reinforcement The layer 2 is composed of a layer of ribbed tube 3, which is wound on the gap of the molten strip, and the ribbed tube 3 is composed of a polypropylene support tube 4, a glass fiber resin layer 5 and Polyethylene coating layer 6 constitutes.

本实施方式中玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材的制备方法如下：一、将聚乙烯和玻璃短纤维的混料通过型号为

Figure GSA00000029394100031
的单螺杆挤出机挤出玻纤树脂层，挤出的玻纤树脂层包覆在聚丙烯支撑管外表面；二、采用型号为的单螺杆挤出机挤出熔融态带状物及聚乙烯包覆层，聚乙烯包覆层包覆在玻纤树脂层外表面，得到加强肋管；三、将步骤二挤出的熔融态带状物缠绕于模具上，然后再将加强肋管缠绕于熔融态带状物的缝隙上，冷却，即得玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材。In the present embodiment, the preparation method of glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe is as follows: 1. Pass the mixture of polyethylene and glass short fiber through the model
Figure GSA00000029394100031
The single-screw extruder extrudes the glass fiber resin layer, and the extruded glass fiber resin layer is coated on the outer surface of the polypropylene support tube; 2. The model used is The single-screw extruder extrudes the molten strip and the polyethylene coating layer, and the polyethylene coating layer is coated on the outer surface of the glass fiber resin layer to obtain a ribbed tube; 3. The molten state extruded in step 2 The ribbon is wound on the mold, and then the reinforcing rib tube is wound on the gap of the molten ribbon, and cooled to obtain the glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe.

具体实施方式二：本实施方式与具体实施方式一不同的是所述熔融态带状物的材料是聚乙烯。其它与具体实施方式一相同。Embodiment 2: The difference between this embodiment and Embodiment 1 is that the material of the molten ribbon is polyethylene. Others are the same as in the first embodiment.

具体实施方式三：本实施方式与具体实施方式一或二不同的是所述玻纤树脂层由聚乙烯和玻璃短纤维组成，玻纤树脂层中玻璃短纤维的重量百分比为15％～18％，所述玻璃短纤维的直径为0.10mm～0.18mm，长度为6mm～25mm。其它与具体实施方式一相同。Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the glass fiber resin layer is composed of polyethylene and glass short fibers, and the weight percentage of glass short fibers in the glass fiber resin layer is 15% to 18% , the diameter of the short glass fibers is 0.10 mm to 0.18 mm, and the length is 6 mm to 25 mm. Others are the same as in the first embodiment.

具体实施方式四：本实施方式中玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材由支撑管1和加强层2组成，所述支撑管1由熔融态带状物缠绕形成管状结构，所述加强层2由两层加强肋管3构成，第一层加强肋管3缠绕在熔融态带状物缝隙上，第二层加强肋管3缠绕在第一层加强肋管3的缝隙间，所述加强肋管3从内到外由聚丙烯支撑管4、玻纤树脂层5和聚乙烯包覆层6构成。Embodiment 4: In this embodiment, the glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe is composed of a support pipe 1 and a reinforcement layer 2. The support pipe 1 is wound by a molten ribbon to form a tubular structure. The reinforcement Layer 2 is composed of two layers of ribbed tubes 3, the first layer of ribbed tubes 3 is wound on the gap of the molten belt, the second layer of ribbed tubes 3 is wound between the gaps of the first layer of ribbed tubes 3, the The reinforcing rib tube 3 is composed of a polypropylene support tube 4 , a glass fiber resin layer 5 and a polyethylene coating layer 6 from the inside to the outside.

本实施方式中玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材的制备方法如下：一、将聚乙烯和玻璃短纤维的混料通过型号为

Figure GSA00000029394100033
的单螺杆挤出机挤出玻纤树脂层，挤出的玻纤树脂层包覆在聚丙烯支撑管外表面；二、采用型号为
Figure GSA00000029394100034
的单螺杆挤出机挤出熔融态带状物及聚乙烯包覆层，聚乙烯包覆层包覆在玻纤树脂层外表面，得到加强肋管；三、将步骤二挤出的熔融态带状物缠绕于模具上，然后再将第一层加强肋管缠绕在熔融态带状物缝隙上，第二层加强肋管缠绕在第一层加强肋管的缝隙间，冷却，即得玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材。In the present embodiment, the preparation method of glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe is as follows: 1. Pass the mixture of polyethylene and glass short fiber through the model
Figure GSA00000029394100033
The single-screw extruder extrudes the glass fiber resin layer, and the extruded glass fiber resin layer is coated on the outer surface of the polypropylene support tube; 2. The model used is
Figure GSA00000029394100034
The single-screw extruder extrudes the molten strip and the polyethylene coating layer, and the polyethylene coating layer is coated on the outer surface of the glass fiber resin layer to obtain a ribbed tube; 3. The molten state extruded in step 2 The ribbon is wound on the mold, and then the first layer of ribbed tube is wound on the gap of the molten ribbon, and the second layer of ribbed tube is wound between the gaps of the first layer of ribbed tube, and the glass is obtained after cooling. Fiber polyethylene composite reinforced polyethylene winding structure wall pipe.

具体实施方式五：本实施方式与具体实施方式四不同的是所述熔融态带状物的材料是聚乙烯。其它与具体实施方式四相同。Embodiment 5: This embodiment is different from Embodiment 4 in that the material of the molten ribbon is polyethylene. Others are the same as in Embodiment 4.

具体实施方式六：本实施方式与具体实施方式四或五不同的是所述玻纤树脂层由聚乙烯和玻璃短纤维组成，玻纤树脂层中玻璃短纤维的重量百分比为15％～18％，所述玻璃短纤维的直径为0.10mm～0.18mm，长度为6mm～25mm。其它与具体实施方式四或五相同。Specific embodiment six: the difference between this embodiment and specific embodiment four or five is that the glass fiber resin layer is composed of polyethylene and glass short fibers, and the weight percentage of glass short fibers in the glass fiber resin layer is 15% to 18% , the diameter of the short glass fibers is 0.10 mm to 0.18 mm, and the length is 6 mm to 25 mm. Others are the same as in Embodiment 4 or 5.

具体实施方式七：本实施方式中玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材由支撑管1和加强层2组成，所述支撑管1由熔融态带状物缠绕形成管状结构，所述加强层2由多层加强肋管3构成，第一层加强肋管3缠绕在熔融态带状物缝隙上，其他层加强肋管3缠绕在其相邻层加强肋管3的缝隙间，所述加强肋管3从内到外由聚丙烯支撑管4、玻纤树脂层5和聚乙烯包覆层6构成。Embodiment 7: In this embodiment, the glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe is composed of a support pipe 1 and a reinforcement layer 2. The support pipe 1 is wound by a molten ribbon to form a tubular structure. The reinforcement Layer 2 is composed of multi-layer ribbed tubes 3, the first layer of ribbed tubes 3 is wound on the gap of the molten strip, and the other layers of ribbed tubes 3 are wound between the gaps of the adjacent layers of ribbed tubes 3, said The reinforcing rib tube 3 is composed of a polypropylene support tube 4 , a glass fiber resin layer 5 and a polyethylene coating layer 6 from the inside to the outside.

本实施方式中玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材的制备方法如下：一、将聚乙烯和玻璃短纤维的混料通过型号为

Figure GSA00000029394100041
的单螺杆挤出机挤出玻纤树脂层，挤出的玻纤树脂层包覆在聚丙烯支撑管外表面；二、采用型号为
Figure GSA00000029394100042
的单螺杆挤出机挤出熔融态带状物及聚乙烯包覆层，聚乙烯包覆层包覆在玻纤树脂层外表面，得到加强肋管；三、将步骤二挤出的熔融态带状物缠绕于模具上，然后再将第一层加强肋管缠绕在熔融态带状物缝隙上，其他层加强肋管缠绕在其相邻层加强肋管的缝隙间，冷却，即得玻纤聚乙烯复合增强聚乙烯缠绕结构壁管材。In the present embodiment, the preparation method of glass fiber polyethylene composite reinforced polyethylene winding structure wall pipe is as follows: 1. Pass the mixture of polyethylene and glass short fiber through the model
Figure GSA00000029394100041
The single-screw extruder extrudes the glass fiber resin layer, and the extruded glass fiber resin layer is coated on the outer surface of the polypropylene support tube; 2. The model used is
Figure GSA00000029394100042
The single-screw extruder extrudes the molten strip and the polyethylene coating layer, and the polyethylene coating layer is coated on the outer surface of the glass fiber resin layer to obtain a ribbed tube; 3. The molten state extruded in step 2 The ribbon is wound on the mold, and then the first layer of ribbed tubes is wound on the gap of the molten ribbon, and the other layers of ribbed tubes are wound between the gaps of the adjacent layers of ribbed tubes, and the glass is obtained after cooling. Fiber polyethylene composite reinforced polyethylene winding structure wall pipe.

具体实施方式八：本实施方式与具体实施方式七不同的是所述熔融态带状物的材料是聚乙烯。其它与具体实施方式七相同。Embodiment 8: This embodiment is different from Embodiment 7 in that the material of the molten strip is polyethylene. Others are the same as in the seventh embodiment.

具体实施方式九：本实施方式与具体实施方式七或八不同的是所述玻纤树脂层由聚乙烯和玻璃短纤维组成，玻纤树脂层中玻璃短纤维的重量百分比为15％～18％，所述玻璃短纤维的直径为0.10mm～0.18mm，长度为6mm～25mm。其它与具体实施方式七或八相同。Specific embodiment nine: the difference between this embodiment and specific embodiment seven or eight is that the glass fiber resin layer is composed of polyethylene and glass short fibers, and the weight percentage of glass short fibers in the glass fiber resin layer is 15% to 18% , the diameter of the short glass fibers is 0.10 mm to 0.18 mm, and the length is 6 mm to 25 mm. Others are the same as the seventh or eighth specific embodiment.

Claims (9)

1. glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing; It is characterized in that glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing is made up of support tube (1) and reinforced layer (2); Said support tube (1) is twined by the molten state ribbon and forms tubular structure; Said reinforced layer (2) is made up of one deck bracing tube (3); Said bracing tube (3) is wrapped on the molten state ribbon slit, and said bracing tube (3) is made up of polypropylene support tube (4), fiberglass resin layer (5) and polyethylene clad (6) from inside to outside.
2. according to the said glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing of claim 1, the material that it is characterized in that said molten state ribbon is a polyethylene.
3. according to claim 1 or 2 said glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing; It is characterized in that said fiberglass resin layer is made up of polyethylene and staple glass fibre; The weight percentage of staple glass fibre is 15%～18% in the fiberglass resin layer; The diameter of said staple glass fibre is 0.10mm～0.18mm, and length is 6mm～25mm.
4. glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing; It is characterized in that glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing is made up of support tube (1) and reinforced layer (2); Said support tube (1) is twined by the molten state ribbon and forms tubular structure; Said reinforced layer (2) is made up of two-layer bracing tube (3); First layer bracing tube (3) is wrapped on the molten state ribbon slit, and second layer bracing tube (3) is wrapped between the slit of first layer bracing tube (3), and said bracing tube (3) is made up of polypropylene support tube (4), fiberglass resin layer (5) and polyethylene clad (6) from inside to outside.
5. according to the said glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing of claim 4, the material that it is characterized in that said molten state ribbon is a polyethylene.
6. according to claim 4 or 5 said glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing; It is characterized in that said fiberglass resin layer is made up of polyethylene and staple glass fibre; The weight percentage of staple glass fibre is 15%～18% in the fiberglass resin layer; The diameter of said staple glass fibre is 0.10mm～0.18mm, and length is 6mm～25mm.
7. glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing; It is characterized in that glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing is made up of support tube (1) and reinforced layer (2); Said support tube (1) is twined by the molten state ribbon and forms tubular structure; Said reinforced layer (2) is made up of multilayer bracing tube (3); First layer bracing tube (3) is wrapped on the molten state ribbon slit, and other layers bracing tube (3) is wrapped between the slit of its adjacent layer bracing tube (3), and said bracing tube (3) is made up of polypropylene support tube (4), fiberglass resin layer (5) and polyethylene clad (6) from inside to outside.
8. according to the said glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing of claim 7, the material that it is characterized in that the molten state ribbon is a polyethylene.
9. according to claim 7 or 8 said glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubing; It is characterized in that said fiberglass resin layer is made up of polyethylene and staple glass fibre; The weight percentage of staple glass fibre is 15%～18% in the fiberglass resin layer; The diameter of said staple glass fibre is 0.10mm～0.18mm, and length is 6mm～25mm.
CN2010101093823A 2010-02-11 2010-02-11 Glass fiber and polyethylene composite reinforced polyethylene spirally enwound structure-wall tubular product Expired - Fee Related CN101737570B (en)

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CN103423522B (en) * 2013-04-23 2015-08-26 杭州联通管业有限公司 Large-calibre reinforced type polyethylene spirally enwound structure-wall tubular product and preparation process thereof
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CN114413078A (en) * 2022-02-28 2022-04-29 昶维(厦门)塑胶科技有限公司 Continuous fiber prepreg rib plate winding reinforced composite pipe and production method

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