Natural fiber-reinforced thermoplastic composite material prepreg tape, and preparation method and application thereof

A technology for reinforcing thermoplastic and natural fibers, which is applied in chemical instruments and methods, textiles and papermaking, and synthetic resin layered products. Effect

Active Publication Date: 2014-12-24
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also some products that use the top-layer glass fiber reinforcement technology to greatly increase the toughness and strength of the board surface. However, in the design and lay-up process of the skateboard surface, since the top layer is laid with glass fiber, this design has no effect on the bottom of the board surface that is prone to fracture. Doing good enhancements is a design flaw

Method used

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  • Natural fiber-reinforced thermoplastic composite material prepreg tape, and preparation method and application thereof
  • Natural fiber-reinforced thermoplastic composite material prepreg tape, and preparation method and application thereof
  • Natural fiber-reinforced thermoplastic composite material prepreg tape, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Pretreating polypropylene to obtain strip fibers with a fineness of 35 deniers;

[0054] (2) Get the sliver of hemp fiber and draw the above-mentioned polypropylene sliver to prepare a roving of 10 public counts, wherein the polypropylene content is 48.5%, and the hemp fiber content is 51.5%;

[0055] (3) Sizing the prepared blended yarn once;

[0056] (4) Process the above-mentioned yarns into plain weave fabrics by loom, as shown in Figure 1(b);

[0057] (5) Desizing the prepared fabric once to obtain a natural fiber reinforced thermoplastic composite material prepreg tape.

[0058] (6) Take hemp fiber reinforced thermoplastic composite prepreg tape, the thickness of each layer of prepreg tape is 0.5mm, and the weight is 360g / m 2 ;

[0059] 20 layers of fabric laying, of which 1, 3, 5, 7, 9, 11, 13, 15, 17, and 19 layers are all in the direction of 0 degrees, 2, 4, 6, 8, 10, 12, 14, The 16th, 18th, and 20th layers are laid in a direction of 90 degrees, and the t...

Embodiment 2

[0064] (1) Pretreating polypropylene to obtain strip fibers with a fineness of 35 deniers;

[0065] (2) get jute fiber sliver and above-mentioned polypropylene sliver and carry out draw frame, prepare to form the roving of 15 public counts, wherein polypropylene content is 45%, and jute fiber content is 55%;

[0066] (3) Process the above-mentioned yarns into a twill fabric by using a loom, as shown in Figure 1(a), to obtain a natural fiber-reinforced thermoplastic composite material prepreg tape;

[0067] (4) Take jute fiber reinforced thermoplastic composite material prepreg tape, the thickness of each layer of prepreg tape is 0.4mm, and the weight is 300g / m 2 ;

[0068] 26 layers are laid up, of which layers 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 25 are all in the direction of 0 degrees, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 layers are laid in a direction of 90 degrees; the thickness of the layer is 8cm, such as figure 2 shown;

[0069] (5) Heat the...

Embodiment 3

[0073] (1) Pretreat polylactic acid to obtain strip fibers with a fineness of 40 denier;

[0074] (2) Get the sliver of ramie fiber and carry out draw frame with above-mentioned polypropylene sliver, prepare the roving of 36 public counts, wherein polylactic acid content is 55%, and ramie fiber content is 45%;

[0075] (3) Sizing the prepared blended yarn once;

[0076] (4) Process the above yarns into twill fabrics by loom, as shown in Figure 1(a);

[0077] (5) Desizing the prepared fabric once to obtain a natural fiber reinforced thermoplastic composite material prepreg tape.

[0078] (6) Take natural fiber reinforced thermoplastic composite material prepreg tape; the thickness of each layer of prepreg tape is 0.18mm, and the weight is 160g / m 2 ;

[0079] 35 layers of lay-up, of which 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, and 35 layers are all in the direction of 0 degrees . Such as figure 2 shown;

[0080] (7) Heat the laminated prepreg tape ...

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Abstract

The invention belongs to the technical field of composite processing, and relates to a natural fiber-reinforced thermoplastic composite material prepreg tape, and a preparation method thereof. The method comprises the following steps of (a) cutting the natural fiber-reinforced thermoplastic composite material prepreg tape and laying; (b) heating the prepreg tape layer into an infrared-ray oven and melting; (c) putting the melted layer into a cold press machine to carry out cold press and cooling to obtain a sheet material; and (d) after the cooling process is finished, cutting the obtained sheet material, punching, polishing, cleaning burs, carrying out precision grinding, spraying paint and applying a surface to obtain a skateboard surface. The prepared natural fiber/thermoplastic resin skateboard surface can be stored for a long time, and after hot press, the natural fibers can be impregnated by the resin thoroughly, so that the material particularly the natural fibers can be kept dry. The natural fibers are not liable to mildew or deteriorate. Products adopted by the invention have no harm to a human body and do not produce adverse reaction.

Description

technical field [0001] The invention belongs to the technical field of composite material processing, and relates to a natural fiber reinforced thermoplastic composite material prepreg tape and its preparation method and application. Background technique [0002] Commercially available skateboards are mainly made of wooden materials. The advantages of Canadian maple wood mainly lie in the hard texture of the material, compact wood, good polishing, and moderate strength. The skateboard surface processed with this wood has good elasticity and high strength. However, skaters require lighter, thinner, and stronger boards, and if improvements are still made on the basis of existing materials, it will lead to weakening of the strength and elasticity of skateboards, so many merchants turn their attention to alternatives to wood. on the material. [0003] At present, many brands produce fiber optic decks. The so-called fiber optic decks are reinforced with glass fibers. The main pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/04B32B37/10B29C70/40D02G3/04
Inventor 杨桂生刘密密
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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