Straw fire-retardant sound-absorbing board

A sound-absorbing board and straw technology, applied in the field of industrial textiles, can solve the problems of human and environmental hazards, high price, high production cost, etc., and achieve the effects of simple and convenient operation, good sound absorption performance, and good flame retardancy

Inactive Publication Date: 2014-09-10
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional sound-absorbing materials mostly use other materials such as rock wool, mineral wool, and glass wool, but their production, processing, and use of raw materials will bring certain harm to the human body and the environment, and the production cost is high
The raw materials currently used to prepare sound-absorbing materials include metal, hemp, tea, polyester fiber, etc., and their sound-absorbing properties can still meet the requirements, but there are still deficiencies: the raw materials themselves are not environmentally friendly, expensive, and the production process is complicated and polluting. Disadvantages such as environmental by-product generation

Method used

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  • Straw fire-retardant sound-absorbing board

Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] A straw flame-retardant sound-absorbing panel, the preparation method of which is: mix 4000g corn stalks with 1000g hot-melt fiber 4080, air-laid, and bonded with hot air at 170°C for 90s (length: 30cm; width 30cm; thickness 15mm) sound-absorbing Part 1: arrange the flame retardant part 3, the material connecting part 2, the sound absorbing part 1, the material connecting part 2 and the flame retardant part 3 from top to bottom, wherein each flame retardant part 3 is made of 50g of modified viscose The fibers (1.5d×38mm) are laid flat, and each material connection part 2 is made of 20g polypropylene fibers (1.5d×38mm), molded at a temperature of 185°C and a pressure of 2MPa 300s, the material connecting part 2 is melted, and the flame-retardant part 3 and the sound-absorbing part 1 are connected together to form a straw flame-retardant sound-absorbing panel with a thickness of 4 mm.

[0019] The sound-absorbing performance of the straw flame-retardant sound-absorbing pa...

Embodiment 2

[0021] A straw flame-retardant sound-absorbing panel, the preparation method of which is as follows: 4000g of wheat straw and 1000g of PLA (1.5d × 38mm) are mixed, air-laid, and hot air bonded at 170°C for 90s (length: 30cm; width: 30cm; thickness 15mm) sound-absorbing part 1; the flame-retardant part 3, the material connecting part 2, the sound-absorbing part 1, the material connecting part 2 and the flame-retardant part 3 are arranged sequentially from top to bottom, wherein each flame-retardant part 3 is modified by 50g Viscose fiber (1.5d×38mm) is laid flat, and each material connection part 2 is made of 20g polypropylene fiber (1.5d×38mm). Molding under certain conditions for 300s, so that the material connecting part 2 is melted, and the flame-retardant part 3 and the sound-absorbing part 1 are connected together to form a straw flame-retardant sound-absorbing panel with a thickness of 4 mm.

[0022] The sound-absorbing performance of the straw flame-retardant sound-abso...

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Abstract

The invention provides a straw fire-retardant sound-absorbing board. The straw fire-retardant sound-absorbing board is characterized that the manufacture method includes arranging a fire-retardant portion, a material connecting portion, a sound absorbing portion, a material connecting portion and a fire-retardant portion sequentially from top to bottom, performing mold pressing on the condition of the temperature ranging from 160 DEG C to 195 DEG C and the pressure ranging from 1 MPa to 3 MPa, fusing the material connecting portions to connect the fire-retardant portion and the sound absorbing portion, and obtaining the straw fire-retardant sound-absorbing board. The fire-retardant portions comprise fire-retardant fibers, the material connecting portions comprise chemical fibers, and the sound absorbing portion is made of materials including straws and hot-melt fibers. The products have efficient sound absorbing effect, the fire-retardant effect can be achieved, material selection and manufacture costs are low, the process route is simple and environment friendly, and the breakthrough in the field of sound absorbing materials is brought.

Description

technical field [0001] The invention belongs to the technical field of industrial textiles, in particular to a straw flame-retardant sound-absorbing board. Background technique [0002] With the rapid development of transportation and industry, pollution also occurs, especially noise pollution has been listed as one of the three major pollutions in the world, with great harm and impact. Noise not only disturbs the auditory system, induces fatigue, deafness, etc., but also accelerates the aging of machinery and buildings, affecting the accuracy and service life of instrumentation and equipment. Noise control materials include: sound-absorbing materials, sound-insulating materials, vibration-isolation materials, and vibration-damping materials. Sound-absorbing materials play an increasingly important role in the field of noise control. Traditional sound-absorbing materials mostly use other materials such as rock wool, mineral wool, and glass wool, but their production, proces...

Claims

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Application Information

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IPC IPC(8): B27N3/12B27N3/04
Inventor 张小林张初阳
Owner DONGHUA UNIV
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