CN103692711A - Modified isotatic polypropylene sound-absorbing cotton and preparation method thereof - Google Patents

Abstract

The invention provides a modified isotatic polypropylene sound-absorbing cotton, comprising a top layer, a back layer and a cellucotton layer sandwiched between the top layer and the back layer, wherein the top layer and the back layer are made of a non-woven fabric material, and the non-woven fabric material is prepared from the following raw materials by weight through melt-blowing: 12 to 15 parts of PET, 100 parts of isotatic polypropylene, 4 to 5 parts of calcined china clay, 1 to 2 parts of sodium potassium silicate, 5 to 7 parts of calcite powder, 1 to 2 parts of zinc acetate, 1 to 2 parts of ethylene bisstearamide, 12 to 15 parts of dimixo-octyl phthalate, 5 to 6 parts of oxidized polyethlene wax, 7 to 9 parts of diatomite, 1 to 2 parts of zirconium nitrate, 2 to 3 parts of Chinese angelica, 1 to 2 parts of tall gastrodia tuber, 1 to 2 parts of bighead atractylodes rhizome and 4 to 5 parts of an auxiliary agent. The sound-absorbing cotton provided by the invention has fragrant smell and an antibacterial effect, can adsorb harmful gas and moisture and remove bacteria and has the advantages of soft handle, a good bonding degree, strong tensile strength, excellent sound-absorbing performance and a good flame retardation effect.

Description

Acoustical cotton of a kind of modification isotactic polypropylene and preparation method thereof

Technical field

The present invention relates to acoustical cotton technical field, relate in particular to acoustical cotton of a kind of modification isotactic polypropylene and preparation method thereof.

Background technology

At present acoustical cotton is widely used in building decoration, automotive interior trim, and along with the increase of automobile pollution, and people uprise the requirement of environment, and the effect of acoustical cotton is more and more important.Current acoustical cotton has following deficiency: (1) discharges harmful organic matter, is detrimental to health; (2) caking ability is inadequate, fugitive, and tensile strength is poor; (3) sound-absorbing effect is limited; (4) thickness, deviation of weight are larger, can not meet the requirement of auto industry to this kind of product; (5) flame retardant effect is inadequate, and degree of safety is not high.Therefore studying the acoustical cotton that performance is more excellent seems particularly important.

Summary of the invention

The object of the present invention is to provide acoustical cotton of a kind of modification isotactic polypropylene and preparation method thereof, this acoustical cotton has that product bond degree is good, tensile property is strong, sound absorption qualities is good, the feature of good flame retardation effect.

Technical scheme of the present invention is as follows:

A kind of acoustical cotton of modification isotactic polypropylene, by top coat, back layer, and the cellucotton layer being clipped between top coat and back layer forms, described top coat, back layer adopts nonwoven cloth material, nonwoven described in it is characterized in that is made by meltblown by the raw material of following weight portion: PET12-15, isotactic polypropylene 100, calcinated argil 4-5, sodium potassium silicate 1-2, calcite powder 5-7, zinc acetate 1-2, ethylene bis stearamide 1-2, diisooctyl phthalate 12-15, OPE 5-6, diatomite 7-9, zirconium nitrate 1-2, Radix Angelicae Sinensis 2-3, rhizoma Gastrodiae 1-2, bighead atractylodes rhizome 1-2, auxiliary agent 4-5, described auxiliary agent is made by the raw material of following weight portion: clay 10-12, nano-sized carbon 1-2, polytetrafluoroethylene powder 3-4, silane resin acceptor kh-550 1-2, zinc dialkyl dithiophosphate 2-3, n-propyl gallate 3-4, coix seed oil 2-3, vanadium diboride 1-2, Tea Polyphenols 2-3,1,6 hexanediyl ester 2-3, nano-aluminium oxide 1-2, cyanuric acid zinc 2-3, epoxyoleic acid butyl ester 3-4, its special Preparation Method is that clay is placed in calcining furnace and at 700-730 ℃, is calcined after 3-4 hour, pulverizes, and mixes with other leftover materials, grinds 1-2 hour, obtains.

The preparation method of described nonwoven comprises the following steps:

(1), Radix Angelicae Sinensis, rhizoma Gastrodiae, the bighead atractylodes rhizome are merged and pulverize 200-250 order powder, then, to the powder air blast of gained, it is seethed, to spray form OPE in the powder seething, the two is fully mixed;

(2), diatomite is sent in calcining furnace, calcination processing 3-4 hour at 600-700 ℃, takes out, and is ground into powder;

(3), isotactic polypropylene is heated to molten condition, add step (1), (2) material, fully stir all;

(4), in step (3) material, add other residual components, fully stir, mix, by nozzle, spray and thread make nonwoven.

Beneficial effect of the present invention

Acoustical cotton of the present invention, by using the Chinese herbal medicines such as Radix Angelicae Sinensis, rhizoma Gastrodiae, the bighead atractylodes rhizome, has aromatic odor and antibacterial effect; By using diatomite to carry out calcination processing, used calcinated argil simultaneously, can adsorb pernicious gas, moisture absorption, degerming, increase sound-absorbing effect; By user, separate stone powder, there is flame retardant effect; Acoustical cotton of the present invention is soft, product bond degree is good, tensile property is strong, sound absorption qualities is good, good flame retardation effect.

The specific embodiment

An acoustical cotton for modification isotactic polypropylene, by top coat, back layer, and is clipped on the cellucotton layer formation between top coat and back layer, and described top coat, back layer adopt nonwoven cloth material; Described nonwoven by following weight portion (kilogram) raw material by meltblown, make: PET13, isotactic polypropylene 100, calcinated argil 4.5, sodium potassium silicate 1.5, calcite powder 6, zinc acetate 1.5, ethylene bis stearamide 1.5, diisooctyl phthalate 14, OPE 5.5, diatomite 8, zirconium nitrate 1.5, Radix Angelicae Sinensis 2.5, rhizoma Gastrodiae 1.5, the bighead atractylodes rhizome 1.5, auxiliary agent 4.5; Described auxiliary agent by following weight portion (kilogram) raw material make: clay 10, nano-sized carbon 1, polytetrafluoroethylene powder 4, silane resin acceptor kh-550 1, zinc dialkyl dithiophosphate 2, n-propyl gallate 4, coix seed oil 2, vanadium diboride 1, Tea Polyphenols 2,1,6 hexanediyl ester 3, nano-aluminium oxide 1, cyanuric acid zinc 3, epoxyoleic acid butyl ester 3; Its special Preparation Method is that clay is placed in calcining furnace and at 700-730 ℃, is calcined after 3-4 hour, pulverizes, and mixes with other leftover materials, grinds 1-2 hour, obtains.

The preparation method of described nonwoven comprises the following steps:

(1), Radix Angelicae Sinensis, rhizoma Gastrodiae, the bighead atractylodes rhizome are merged and pulverize 230 order powder, then, to the powder air blast of gained, it is seethed, to spray form OPE in the powder seething, the two is fully mixed;

(2), diatomite is sent in calcining furnace, at 650 ℃, calcination processing is 3.5 hours, takes out, and is ground into powder;

(3), isotactic polypropylene is heated to molten condition, add step (1), (2) material, fully stir all;

(4), in step (3) material, add other residual components, fully stir, mix, by nozzle, spray and thread make nonwoven.

After tested, the acoustical cotton tearing strength of gained is 598N/m, and the coefficient of heat conduction is 5.376W/(㎡ ℃), oxygen index (OI) is 39%, noise reduction coefficient is 0.90.

Claims (2)

1. the acoustical cotton of a modification isotactic polypropylene, by top coat, back layer, and the cellucotton layer being clipped between top coat and back layer forms, described top coat, back layer adopts nonwoven cloth material, nonwoven described in it is characterized in that is made by meltblown by the raw material of following weight portion: PET12-15, isotactic polypropylene 100, calcinated argil 4-5, sodium potassium silicate 1-2, calcite powder 5-7, zinc acetate 1-2, ethylene bis stearamide 1-2, diisooctyl phthalate 12-15, OPE 5-6, diatomite 7-9, zirconium nitrate 1-2, Radix Angelicae Sinensis 2-3, rhizoma Gastrodiae 1-2, bighead atractylodes rhizome 1-2, auxiliary agent 4-5, described auxiliary agent is made by the raw material of following weight portion: clay 10-12, nano-sized carbon 1-2, polytetrafluoroethylene powder 3-4, silane resin acceptor kh-550 1-2, zinc dialkyl dithiophosphate 2-3, n-propyl gallate 3-4, coix seed oil 2-3, vanadium diboride 1-2, Tea Polyphenols 2-3,1,6 hexanediyl ester 2-3, nano-aluminium oxide 1-2, cyanuric acid zinc 2-3, epoxyoleic acid butyl ester 3-4, its special Preparation Method is that clay is placed in calcining furnace and at 700-730 ℃, is calcined after 3-4 hour, pulverizes, and mixes with other leftover materials, grinds 1-2 hour, obtains.

2. the preparation method of the acoustical cotton of modification isotactic polypropylene according to claim 1, is characterized in that: the preparation method of described nonwoven comprises the following steps:

(1), Radix Angelicae Sinensis, rhizoma Gastrodiae, the bighead atractylodes rhizome are merged and pulverize 200-250 order powder, then, to the powder air blast of gained, it is seethed, to spray form OPE in the powder seething, the two is fully mixed;

(2), diatomite is sent in calcining furnace, calcination processing 3-4 hour at 600-700 ℃, takes out, and is ground into powder;

(3), isotactic polypropylene is heated to molten condition, add step (1), (2) material, fully stir all;

(4), in step (3) material, add other residual components, fully stir, mix, by nozzle, spray and thread make nonwoven.