Composite fiber felt and composite fiber board for automobile inner decoration and preparation methods of composite fiber mat and composite fiber board

A fiber composite and automotive interior technology, which is applied to fiber composite felts and composite fiber boards for automotive interiors, can solve the problems that synthetic fibers are not easy to degrade and are not easy to handle, achieve easy recycling, improve strength and toughness, and have excellent environmental performance. Effect

Active Publication Date: 2013-03-13
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a fiber composite felt for automotive interior decoration, a composite fiber board, and a preparation method thereof, so as to solve the problems that synthetic fibers are difficult to degrade and handle.

Method used

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  • Composite fiber felt and composite fiber board for automobile inner decoration and preparation methods of composite fiber mat and composite fiber board
  • Composite fiber felt and composite fiber board for automobile inner decoration and preparation methods of composite fiber mat and composite fiber board
  • Composite fiber felt and composite fiber board for automobile inner decoration and preparation methods of composite fiber mat and composite fiber board

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preparation example Construction

[0048] Such as figure 1 Shown, in one embodiment of the present invention, a kind of preparation method of above-mentioned fiber composite mat for automotive interior is provided, comprising the following steps: mixing hemp fiber, optional bamboo fiber and polylactic acid fiber in proportion, Forming mixed fibers; opening, carding, cross-lapping, and main needling treatment of the mixed fibers in sequence to form a first felt; after the first felt reaches a predetermined weight, it is heated and pre-pressed into a coil to obtain the Fiber composite felt. The preparation method provided by the invention not only has simple processing technology, low energy consumption and high work efficiency, but also the prepared fiber composite felt has excellent performance, is non-toxic and non-polluting.

[0049] Such as figure 2 As shown, in one embodiment of the present invention, the step of mixing fibers in the preparation method of the above-mentioned fiber composite felt further ...

Embodiment 1

[0061] Raw materials for the first felt (kg): polylactic acid fiber 40 (7-10cm in length), jute fiber 60 (7-10cm in length). Among them, the breaking strength of the polylactic acid fiber is 4.2cN / dtex, the elongation at break is 28%, and the interlocking strength is 2.8cN / dtex.

[0062] The preparation method of fiber composite felt:

[0063] Mix the polylactic acid fiber and jute fiber through the mixer; put the mixed fiber into the opener for opening and mixing, mix for 30s, and then send it into the cotton box; transport the opened and mixed fiber stored in the cotton box through the airflow to the carding machine for carding; the carded fibers are sent to the web-laying machine for cross-laying; after the laid-up web is folded according to the required requirements, it is sent to the pre-needling machine for pre-needling into felt; The needled felt is sent to the main needling machine for main needling to form the first felt. After reaching the predetermined weight, it i...

Embodiment 2

[0067] The first felt raw material (kg): same as embodiment 1. Among them, the breaking strength of the polylactic acid fiber is 5.5cN / dtex, the elongation at break is 36%, and the joint strength is 2.5cN / dtex.

[0068] The preparation method of fiber composite felt: with embodiment 1.

[0069] The preparation method of composite fiber board: with embodiment 1.

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Abstract

The invention discloses a composite fiber felt and a composite fiber board for automobile inner decoration and preparation methods of the composite fiber felt and the composite fiber board. The composite fiber board for automobile inner decoration comprises one or more first felt layers, and each first felt layer contains the following ingredients in percent by weight: 30%-50% of polylactic acid fibers, 40%-60% of jute fibers subjected to surface treatment by isocyanate and 0%-20% of natural bamboo fibers subjected to surface modification treatment by titanate. The natural bamboo fibers and the jute fibers are natural fibers and the polylactic acid fibers are degradable fibers and the composite material prepared from the fibers are free from pollution, excellent in environment-friendly performance and easy to recycle. After surface modification treatment, the natural bamboo fibers and the jute fibers are composited with the polylactic acid fibers to prepare the composite board, so that the strength and the toughness of the composite board are improved greatly without increase of board density, and the composite board can be used as base materials of automobile inner decoration parts such as automobile roofs and inner board frameworks with high requirements on strength.

Description

technical field [0001] The invention relates to the field of manufacturing composite fiberboards for automotive interiors, in particular to a fiber composite felt for automotive interiors, composite fiberboards, and a preparation method thereof. Background technique [0002] Automotive interior parts mainly refer to the instrument panel, seat, steering wheel, door inner panel, ceiling, armrest, trunk lining and engine hood lining installed in the car. With the continuous development of automobile design and manufacturing technology, the requirements for interior parts are getting higher and higher, that is, not only the shape, material and color coordination of automobile interior parts are required to meet the functional requirements, but also the interior parts are required to be beautiful and comfortable. , sound insulation, shockproof and low cost. At present, the interior parts of automobiles are developing in the direction of "coordination, practicality, cleanliness, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B21/02B32B21/10B60R13/02
Inventor 于春晓于范芹
Owner CHINESE TEXTILE ACAD
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