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Sandwich structural fiber board

A sandwich structure and fiberboard technology, applied in the field of boards, can solve the problems of unfavorable interior panels such as thermal insulation and sound insulation, and achieve the effects of reducing the use of non-renewable resources, good thermal insulation, and shortening the process flow

Inactive Publication Date: 2008-01-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to these trends, there are three main problems in the existing production technology and patents: 1. The structure is uniform and compact, which is not conducive to improving the performance of thermal insulation and sound insulation of interior panels

Method used

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  • Sandwich structural fiber board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The hemp fiber and the low-melting point polyester are opened separately, and then fed to three carding machines according to different ratios. Among them, the ratio of low-melting point polyester and hemp fiber fed to the carding machines on both sides is the same, which is 90:10, and the carding machine in the middle is fed to three carding machines. The ratio of imported low-melting point polyester and hemp fiber is 20:80. The fiber web formed by the carding machine is laminated by the web-laying machine to form a certain amount of fiber web, and the three web-laying machines respectively form the upper skin layer, core layer, and lower skin layer fiber web of the board, and the core layer accounts for 30% of the total fiber web weight. . Spray and apply flame retardant FPK8001 to each fiber web, which is a phosphorus-containing compound provided by Hong Kong Hutt International Group, and the flame retardant accounts for 4 to 8% of the weight of the fiber web. The w...

Embodiment 2

[0027] The ratio of low-melting point polyester and hemp fibers fed to the carding machines on both sides is 80:20, the ratio of low-melting point polyester and hemp fibers to the middle carding machine is 30:70, and the core layer accounts for 40% of the total fiber web weight. Quantitative 3300g / m 2 , the hot pressing pressure is 2 MPa, and the temperature is 180°C. All the other are with embodiment 1.

Embodiment 3

[0029] The ratio of low-melting point polyester and hemp fibers fed to the carding machines on both sides is 70:30, and the ratio of low-melting point polyester and hemp fibers to the middle carding machine is 35:65. The core layer accounts for 50% of the total fiber web weight. Quantitative 3100g / m 2 , the hot pressing pressure is 4MPa, and the temperature is 175°C. All the other are with embodiment 1.

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Abstract

The invention discloses a sandwich structure fiber plate. Flax fiber and polyester with low melting point are adopted as raw material. After two fibers with different proportion are mixed the mixture is combed into net and fire retardant is sprayed on the fiber net. Triple fiber nets are folded into the sandwich structure fiber plate, wherein components of upper and lower skin fiber nets are the same. The proportion of polyester with low melting point in the medium fiber net is small. Fiber net and decorative fabrics are pressed thermally together to fabricate the sandwich structure fiber plate. The invention is the no-harmful circumstance-protection fiber plate with good heat insulation, sound insulation and force performances. It is suitable for internal decorative plate of vehicle door especially.

Description

technical field [0001] The invention relates to a panel, in particular to an automotive interior panel and a production method thereof. Background technique [0002] There are many methods for producing automobile door trim panels at home and abroad. If powder binder is added to the fiber net, the powder binder is composed of multiple components and contains formaldehyde, which is likely to cause environmental pollution in the car and threaten the health of drivers and passengers. In recent years, polypropylene and wood powder have also been used as raw materials in China. After mixing, extrusion and calendering, plastic wood powder boards are made. The material is mainly a solid structure with high density and relatively poor mechanical properties. low-end cars. Some domestic manufacturers have also applied for patents for hemp fiber automotive interior parts. [0003] Taizhou Insulation Material Factory patented "Manufacturing automotive interior parts with needle-punch...

Claims

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Application Information

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IPC IPC(8): B32B5/26B60R13/00
Inventor 王瑞单明景徐磊焦晓宁刘亚任元林曾新
Owner CHINA PETROLEUM & CHEM CORP
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