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A kind of fiber-reinforced thermoplastic resin building formwork and its preparation method

A thermoplastic resin and fiber-reinforced technology, which is applied in the field preparation of building components, construction, building construction, etc., can solve the problems of high turnover times, cumbersome manufacturing process, and high difficulty, and achieve simple and feasible preparation process, durable surface Grinding, the effect of high production efficiency

Inactive Publication Date: 2015-09-30
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The template has good weather resistance, recyclability, and high turnover times, but the cost is high, and the manufacturing process is cumbersome and difficult, especially for the surface material.

Method used

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  • A kind of fiber-reinforced thermoplastic resin building formwork and its preparation method
  • A kind of fiber-reinforced thermoplastic resin building formwork and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) The modified (PP fiber + PET fiber) and glass fiber are opened by a fiber opener, and then cross-laid, in which the polymer fiber: basalt fiber is 8:2, and the PP fiber: PET fiber is 3: 1. The aspect ratio of glass fiber is 3000. Sprinkle 5 parts of 500-mesh talcum powder through a powder spreader, and then perform double-sided needling after rolling and lamination to obtain a fiber-reinforced thermoplastic resin felt;

[0032] (2) Unwind 60g / m on the track of the compound machine from bottom to top 2 Modified PE film, sprinkled with glass fiber, unwinding 60g / m 2 The modified PE film is hot-compressed at 160°C and 2MPa, cooled and cut to obtain a single-layer reinforced fiber mat, and then 12 layers of reinforced fiber mats are sequentially unwound on the track of the compound machine from bottom to top. The transmission speed is 10 m / min, and the composite fiber reinforced felt is obtained;

[0033] (3) The fiber-reinforced thermoplastic resin felt is first pas...

Embodiment 2

[0035] (1) After the modified PP fiber and basalt fiber are opened by a fiber opener, they are then cross-laid. The polymer fiber: basalt fiber is 6:4, and the aspect ratio of the basalt fiber is 1500. Sprinkle 10 parts of 200-mesh calcium carbonate through a powder spreader, and then perform double-sided needling after rolling and lamination to obtain a fiber-reinforced thermoplastic resin felt;

[0036] (2) Unwind 120 g / m on the crawler of the compound machine from bottom to top 2 Modified PP film, sprinkled with basalt fiber, unwinding 120g / m 2 The modified PP film is hot-compressed at 190°C and 1MPa, cooled and cut to obtain a single-layer reinforced fiber mat, and then 8 layers of reinforced fiber mat are sequentially unwound on the track of the compound machine from bottom to top. The transmission speed is 6m / min, and the composite fiber reinforced felt is obtained;

[0037] (3) The fiber-reinforced thermoplastic resin felt is first passed through a contact heating dev...

Embodiment 3

[0039] (1) After the modified (PP fiber + PA fiber) and glass fiber are opened by a fiber opener, they are then cross-laid, where the polymer fiber: glass fiber is 5:5, and the PP fiber: PA fiber is 4: 1. The aspect ratio of glass fiber is 500. Sprinkle 15 parts of 80-mesh high-density polyethylene rubber powder through a powder spreader, and then perform double-sided needling after rolling and lamination to obtain a fiber-reinforced thermoplastic resin felt;

[0040] (2) Unwind 200g / m on the track of the compound machine from bottom to top 2 Modified PP / PET blend film, sprinkled with glass fiber, unwinding 200g / m 2 The modified PP / PET blend film was hot-compressed at 210°C and 0.3 MPa, cooled and cut to obtain a single-layer reinforced fiber mat, and then four layers were unwound from bottom to top on the track of the compound machine. Reinforced fiber felt, transmission speed is 2 m / min, get composite fiber reinforced felt;

[0041] (3) The fiber-reinforced thermoplast...

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Abstract

The invention discloses a fiber-reinforced thermoplastic resin building template. The template is formed by compounding a fiber-reinforced thermoplastic resin felt (1), binding films (2), composite fiber-reinforced felts (3) and surface layer adhesive films (4); the fiber-reinforced thermoplastic resin felt (1) is positioned in the middle; both sides of the fiber-reinforced thermoplastic resin felt (1) are sequentially provided with the binding films (2), the composite fiber-reinforced felts (3) and the surface layer adhesive films (4) from inside to outside; each composite fiber-reinforced felt (3) is formed by compounding a plurality of layers of reinforced fiber felts, wherein each single layer of reinforced fiber felt is of a sandwich structure, a core layer of each single layer of reinforced fiber felt is formed by reinforced fibers (5) and upper and lower surfaces of each single layer of reinforced fiber felt are provided with thermoplastic resin adhesive films (6). The fiber-reinforced thermoplastic resin building template disclosed by the invention has excellent rigidity and weather resistance; the service life of the template can be greatly prolonged; turnover is improved; the surface of the template is wear-resistant and smooth; the template is easy to demould.

Description

technical field [0001] The invention relates to the technical field of building construction templates, in particular to a fiber-reinforced thermoplastic resin building template and a preparation method thereof. Background technique [0002] At present, the formation of reinforced concrete structures on construction sites mostly uses wood (bamboo) plywood and steel formwork. Among them, steel formwork is usually suitable for large-scale regular concrete surfaces, while for ordinary civil buildings, wood (bamboo) plywood is usually used. Steel formwork has high strength and high turnover times, but it is costly, heavy, easy to rust, and difficult to demould after long-term contact with concrete; wood (bamboo) plywood is light in weight and low in cost, but it is easy to rot after absorbing water and can be Turnover times are low and release properties are not ideal. [0003] In order to solve the problems existing in the existing building templates, some people have propose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G9/05B32B27/12B32B7/10B32B37/06B32B37/08B32B37/10
Inventor 屈建张卫东杨晓东陈晓东张涛宋建荣秦杰蒋立红于震平周明海马国维傅华康
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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