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Low-VOC natural fiber composite as well as preparation method and application of composite

A natural fiber and composite material technology, applied in the field of fiber composite materials, can solve problems such as residues and skin allergies

Active Publication Date: 2015-06-10
扬州超峰汽车内饰件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are deficiencies in the process of use, such as skin irritation when processing and handling fiber-reinforced products, and residues when scrapped and burned

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The invention provides a kind of preparation method of low-VOC natural fiber composite material, described method comprises following process step:

[0027] Step S1, using nanoclay and resin for blend spinning to prepare modified synthetic fibers.

[0028] In this step, the modified synthetic fiber is obtained by blending and spinning nano-clay modified reinforced resin slices. Specifically, the nanoclay is added to the resin particles in a proportion of 0.1%-2% of the total mass of the mixed fiber prepared, and is granulated by blending and screw extrusion, and the modified resin particles are spun to form 4- 10dtex modified synthetic fibers. In the present invention, the nanoclay used is an inorganic particle with an average particle size ranging from 2 to 10 μm and has an adsorption function. Any one of soil and halloysite. The resin used to make the modified synthetic fiber can be a thermoplastic polymer material, for example, one or more can be selected from the...

no. 1 approach

[0045] Firstly, the preparation method of the low-VOC natural fiber composite material according to the first embodiment of the present invention is introduced. In this embodiment, modified synthetic fibers are mainly used to mix with natural fibers to prepare mixed fibers.

[0046] In the examples provided below, the nanoclay used is the DEOACT-S2 nanoclay of AKHC Company, but the present invention is not limited thereto.

Embodiment 1

[0056] Take 2% nano-montmorillonite of the total mass of mixed fibers, 1% polyvinylpyrrolidone as a dispersant, and add 2% silane coupling agent into water to make a suspension with a concentration of 20%. First, stir with a mechanical stirrer at 1350rpm for 1h , followed by stirring at 1700rpm for 2h to prepare a homogeneously dispersed nanoclay suspension.

[0057] The nanoclay and polypropylene fiber blend spinning of 1% of the total mass of mixed fiber is used to make modified polypropylene fiber, 50Kg modified polypropylene fiber is mixed with 50Kg hemp fiber to form mixed fiber, and the nanoclay suspension is opened The link is sprayed into the mixed fiber of hemp fiber and polypropylene fiber by spraying method, and it is made into a composite material after opening, carding, needle punching and hot pressing, with an area density of 1500g / m 2 , the preheating temperature is 210°C, the preheating time is 40S, and the holding time is 35S.

[0058] The VOC detection resul...

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Abstract

The invention relates to a low-VOC natural fiber composite as well as a preparation method and application of the composite. The preparation method comprises the following steps: carrying out blend spinning on nano-clay and resin to prepare modified synthetic fibers, mixing the modified synthetic fibers and natural fibers or the natural fibers and other fibers to prepare mixed fibers, and carrying out opening, mixing, mesh placement, acupuncture and hot pressing treatment to prepare the low-VOC natural fiber composite. The low-VOC natural fiber composite can be applied to automotive interior trims and has the characteristics of low VOC, small density, light weight, low cost, high strength, good toughness, high deformation, high safety, environmental protection, capability of recovering and the like.

Description

technical field [0001] The invention relates to a fiber composite material, in particular to a low-VOC natural fiber composite material, a preparation method and an application thereof, which are made by mixing natural fibers and chemical fibers through non-woven technology. Background technique [0002] In recent years, the awareness of environmental protection has been deeply rooted in the hearts of the people. Natural fibers have been used to make automotive interior materials due to their excellent characteristics such as ecological protection, degradability, light weight and low price, high specific strength and specific modulus, friction and wear resistance, and regeneration. [0003] However, during the processing and use of natural fibers, due to factors such as temperature, humidity, and light, the remaining pectin, hemicellulose, lignin and other substances on the surface of hemp fibers are decomposed to form formaldehyde, acetaldehyde, acrolein, benzene, toluene, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/00B29C43/58
CPCB29C43/58B29C70/00B29C2043/5816D04H1/43835C08J5/005C08J5/045C08J5/047C08J5/06C08J2323/12C08J5/048D04H1/42D04H1/425B60R13/02C08J5/04C08K13/02C08L23/12C08L97/02C08J5/0405C08J5/24D01D5/08D01F8/06D01F8/10D01F8/18D04H1/736D10B2321/022D10B2321/12D10B2505/12
Inventor 潘国立于化锋
Owner 扬州超峰汽车内饰件有限公司
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