CN106046475A - Polyethylene foam sound-absorbing material and preparation method thereof - Google Patents
Polyethylene foam sound-absorbing material and preparation method thereof Download PDFInfo
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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Abstract
The invention relates to a polyethylene foam sound-absorbing material and a preparation method thereof. The polyethylene foam sound-absorbing material comprises the following components in parts by weight: 1-5 parts of rare earth chloride, 15-100 parts of glass fiber, 20-80 parts of vermiculite, 15-40 parts of mountain tallow, 100-300 parts of chemical foaming agent, 500-3000 parts of low-density polyethylene and 15-60 parts of crosslinking agent. The sound-absorbing material provided by the invention has the advantages of favorable sound-absorbing effect and favorable fire resistance.
Description
Technical field
The present invention relates to deadener field, be specifically related to a kind of polyethylene foam deadener and preparation method thereof.
Background technology
Deadener, for reducing noise pollution, improves the performance of equipment, and Optimization Work and living environment are significant.
Deadener typically selects density big, prepared by fine and close material, and such as lead, concrete etc., but these materials exist difficult forming, single
The position quality problem such as heavily, limits its application.Macromolecular material light weight, easy-formation, but soundproof effect is the best, exploitation sound resistance
It is the important directions that deadener develops every effective, easy-formation, lightweight deadener.
Chinese patent CN104356583A disclose a kind of methyl phenyl vinyl silicone rubber modified ABS deadener and
Preparation method, comprises the following steps: (1) is added thereto to methyl phenyl vinyl silicone rubber by mixing for ABS resin to bag roller,
Mixing uniformly add radical initiator, continue mixing, bottom sheet, obtain phenyl siloxane rubber modified master；(2) by step (1)
The phenyl siloxane rubber modified master obtained mixes with ABS resin, pelletize, obtain methyl phenyl vinyl silicone rubber modified ABS every
Sound material；Wherein, described radical initiator is peroxide or the azo compound that can produce free radical.Lead to tradition
The method crossing interpolation high-density packing raising soundproof effect is compared, and this invention utilizes the damping capacity of phenyl siloxane rubber to increase sound wave
Loss in communication process, effectively reduces the density of material, simplifies processing technique.
Chinese patent CN104231637A discloses a kind of glass microballoon and fills damping silicon rubber deadener, by following heavy
The raw material of amount part is made: damping silicon rubber 80-120 part, glass microballoon 5-40 part, vinyltrimethoxy silane 0.2-0.8 part,
Tetra methylthiuram 0.1-2 part, peroxide vulcanizing agent 0.5-5 part；In described damping silicon rubber, moles the hundred of vinyl chain link
Dividing content is 0.2-10%, and the molar content of phenyl chain link is 10-20%；Described peroxide vulcanizing agent is double two or four cream
(peroxidating is double (2,4 dichloro benzene formyl)), double-25 (2,5-bis-(t-butylperoxy) hexane) or the diphenyl peroxides of vulcanizing agent
Formyl.This invention also discloses the preparation method of this damping silicon rubber deadener.Glass microballoon is filled in damping by this invention
In silicone rubber, reduce the weight of damping silicon rubber material, further improve the sound insulation value of material, beneficially silicone rubber every
The expansion application of sound material.
Existing deadener fire protecting performance is bad, and soundproof effect is the best, continual exploitation good the disappearing of a kind of soundproof effect
Sound material.
Summary of the invention
In order to solve the problems referred to above that prior art exists, the present invention provides a kind of polyethylene foam deadener and system thereof
Preparation Method, this deadener not only soundproof effect is good, and fire protecting performance is good.
The technical solution adopted in the present invention is:
The present invention provides a kind of polyethylene foam deadener, it is characterised in that this polyethylene foam deadener includes
The rare earth chloride of 1-5 weight portion, the glass fibre of 15-100 weight portion, the Vermiculitum of 20-80 weight portion, the stone of 15-40 weight portion
Fat, the CBA of 100-300 weight portion, the Low Density Polyethylene of 500-3000 weight portion and the crosslinking of 15-60 weight portion
Agent.
Preferably, this polyethylene foam deadener includes the rare earth chloride of 2-4 weight portion, the glass of 25-40 weight portion
Fiber, the Vermiculitum of 30-50 weight portion, the Halloysitum Rubrum of 25-30 weight portion, the CBA of 200-250 weight portion, 100-1500 weight
The Low Density Polyethylene of amount part and the cross-linking agent of 20-30 weight portion.
Preferably, the one or many during described rare earth chloride is lanthanum chloride, cerium chloride, Dineodymium trioxide, praseodymium oxide and cerium oxide
Kind.
Preferably, described CBA be azodicarbonamide, 4,4'-OBSH and dinitroso five are sub-
One or more in tetramine.
Preferably, the one during described cross-linking agent is tetraisocyanate, polypropylene glycol glycidyl ether and p-methyl benzenesulfonic acid
Or it is multiple.
The present invention also provides for the preparation method of a kind of polyethylene foam deadener, it is characterised in that the method includes: press
According to the formula of polyethylene foam deadener provided by the present invention, Low Density Polyethylene is sent into and mixing roll carries out first mixes
Refining, is subsequently adding CBA and carries out second mixing, is subsequently adding cross-linking agent and carries out the 3rd mixing, and then then slice puts
Enter in vulcanizing press and vulcanize, then carry out compression molding, obtain polyethylene foam deadener.
Preferably, the first mixing condition is: temperature is 110～120 DEG C, and the time is 3～5 minutes；Second mixing bar
Part is: temperature is 70～100 DEG C, and the time is 10-15 minute；3rd mixing condition is: temperature is 70～100 DEG C, and the time is
10-15 minute.
Preferably, curing temperature is 180～220 DEG C, and cure time is 15～45 minutes.
Preferably, the pressure of molding is 1～5 MPa, and molding time is 30 seconds～2 minutes.
Preferably, using releasing agent that the polyethylene foam deadener of compression molding is carried out the demoulding, described releasing agent is
Weight ratio (1-3): the Kaolin of 1 and aqueous mixtures.
The invention have the benefit that the present invention by the material doped expanded materials such as glass fibre, Vermiculitum and Halloysitum Rubrum, one
Aspect can improve the soundproof effect of expanded material well, on the other hand can improve the fire resistance of expanded material, and,
Adulterate in expanded material rare earth chloride, can improve the uniformity of bubble in expanded material, increase erasure effect.
It addition, the foaming deadener of the present invention have tough, have flexibility, rub resistance, have the insulation of excellence, thermal insulation and resistance to
The advantages such as the rotten candle property of chemistry, and density is little, it is easy to transport and install.
The polyethylene foam deadener preparation method of the present invention is simple, can improve in existing technique, it is easy to
Large-scale production.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained owning on the premise of not making creative work
Other embodiment, broadly falls into the scope that the present invention is protected.
The present invention provides the present invention to provide a kind of polyethylene foam deadener, it is characterised in that this polyethylene foam disappears
Sound material includes the rare earth chloride of 1-5 weight portion, the glass fibre of 15-100 weight portion, the Vermiculitum of 20-80 weight portion, 15-40
The Halloysitum Rubrum of weight portion, the CBA of 100-300 weight portion, the Low Density Polyethylene of 500-3000 weight portion and 15-60 weight
The cross-linking agent of amount part；Preferably, this polyethylene foam deadener includes the rare earth chloride of 2-4 weight portion, 25-40 weight portion
Glass fibre, the Vermiculitum of 30-50 weight portion, the Halloysitum Rubrum of 25-30 weight portion, the CBA of 200-250 weight portion, 100-
The Low Density Polyethylene of 1500 weight portions and the cross-linking agent of 20-30 weight portion.
According to the present invention, rare earth chloride refers to the chlorate of rare earth element, it is possible to as the foamed core of expanded material, urge
Change chemical foam blowing agent, make the distribution of foam in expanded material more uniform, thus improve soundproof effect, such as, described chlorine
Changing rare earth can be one or more in lanthanum chloride, cerium chloride, Dineodymium trioxide, praseodymium oxide and cerium oxide.
According to the present invention, CBA is that this area routine selects, and such as, the described CBA of the present invention is permissible
For one or more in azodicarbonamide, 4,4'-OBSH and dinitrosopentamethylene tetramine.
According to the present invention, cross-linking agent is that this area routine selects, and such as, the described cross-linking agent of the present invention can be four isocyanides
One or more in acid esters, polypropylene glycol glycidyl ether and p-methyl benzenesulfonic acid.
The present invention also provides for the preparation method of a kind of polyethylene foam deadener, it is characterised in that the method includes: press
According to the formula of polyethylene foam deadener provided by the present invention, Low Density Polyethylene is sent into and mixing roll carries out first mixes
Refining, is subsequently adding CBA and carries out second mixing, is subsequently adding cross-linking agent and carries out the 3rd mixing, and then then slice puts
Enter in vulcanizing press and vulcanize, then carry out compression molding, obtain polyethylene foam deadener.
According to the present invention, mixing and mixing roll is well known to those skilled in the art, and such as, the first mixing condition can
Thinking: temperature is 110～120 DEG C, the time is 3～5 minutes；Second mixing condition can be: temperature is 70～100 DEG C, time
Between be 10-15 minute；3rd mixing condition can be: temperature is 70～100 DEG C, and the time is 10-15 minute.
Being well known to those skilled in the art according to the present invention, vulcanizing press and sulfuration, such as, curing temperature is permissible
Being 180～220 DEG C, cure time can be 15～45 minutes.
According to the present invention, compression molding is well known to those skilled in the art, and such as, the pressure of molding can be 1～5,000,000
Handkerchief, molding time can be 30 seconds～2 minutes.
According to the present invention it is possible to use releasing agent that the polyethylene foam deadener of compression molding is carried out the demoulding, described
Releasing agent is weight ratio (1-3): the Kaolin of 1 and aqueous mixtures, and releasing agent is well known to those skilled in the art, but uses
The releasing agent of the present invention can play more preferable stripping result.
The present invention will be further illustrated by embodiment below, but the present invention is not therefore subject to any restriction.
If no special instructions, instrument of the present invention and reagent are and are purchased, and the commodity of different brands do not affect and specifically make
With.
The soundproof effect of material prepared by the embodiment of the present invention and comparative example uses GBJ88-1985 " standing wave tube sound-absorption coefficient
With specific acoustic impedance specifications of surveys " it is measured, use and measure the acoustic absorptivity A (0～1,200Hz, 1000Hz, 2000Hz) obtained
Evaluation material soundproof effect, the soundproof effect of the biggest then illustrative material of A is the best.
The low-density polyethylene of the embodiment of the present invention and comparative example is purchased from Sinopec Group Beijing swallow
Mountain company, cross-linking agent is purchased from Tianjin recovery fine chemistry industry institute, and CBA expands chemical technology purchased from BeiJing ZhongKe
Company limited, glass fibre is purchased from Anhui insulating glass fibers company limited wholeheartedly, Vermiculitum and Halloysitum Rubrum and is purchased from Kaolin of Suzhou factory,
Rare earth chloride is analytical pure.
Embodiment 1
According to formula: the cerium oxide of 1 weight portion, the glass fibre of 60 weight portions, the Vermiculitum of 36 weight portions, 40 weight portions
The polypropylene glycol of Halloysitum Rubrum, the azodicarbonamide of 300 weight portions, the Low Density Polyethylene of 2000 weight portions and 60 weight portions shrinks
Glycerin ether, sends into Low Density Polyethylene and carries out being 120 DEG C in temperature in mixing roll and carry out first mixing 5 minutes, be subsequently adding
CBA carries out second mixing 10 minutes at 100 DEG C, is subsequently adding cross-linking agent and carries out the 3rd mixing 15 points at 70 DEG C
Clock, then slice, be then placed in vulcanizing press carrying out vulcanizing at 180 DEG C 15～45 minutes, then carry out under 5 MPas
Compression molding 30 seconds, releasing agent is Kaolin and the aqueous mixtures of weight ratio 1:1, obtains polyethylene foam deadener XS1.
Embodiment 2
According to formula: the lanthanum chloride of 3 weight portions, the glass fibre of 85 weight portions, the Vermiculitum of 20 weight portions, 25 weight portions
Halloysitum Rubrum, the 4,4'-OBSH of 100 weight portions, the Low Density Polyethylene of 1000 weight portions and 30 weight portions to first
Benzenesulfonic acid, sends into Low Density Polyethylene and carries out being 120 DEG C in temperature in mixing roll and carry out first mixing 4 minutes, be subsequently adding
CBA carries out second mixing 10 minutes at 100 DEG C, is subsequently adding cross-linking agent and carries out the 3rd mixing 15 points at 100 DEG C
Clock, then slice, be then placed in vulcanizing press carrying out vulcanizing at 180 DEG C 15 minutes, then mold under 3 MPas
Molding 2 minutes, releasing agent is Kaolin and the aqueous mixtures of weight ratio 2:1, obtains polyethylene foam deadener XS2.
Embodiment 3
According to formula: the cerium chloride of 5 weight portions, the glass fibre of 15 weight portions, the Vermiculitum of 70 weight portions, 15 weight portions
The four of Halloysitum Rubrum, the dinitrosopentamethylene tetramine of 200 weight portions, the Low Density Polyethylene of 2500 weight portions and 15 weight portions are different
Cyanate, sends into Low Density Polyethylene and carries out being 120 DEG C in temperature in mixing roll and carry out first mixing 5 minutes, be subsequently adding
CBA carries out second mixing 10 minutes at 80 DEG C, is subsequently adding cross-linking agent and carries out the 3rd mixing 10 points at 100 DEG C
Clock, then slice, be then placed in vulcanizing press carrying out vulcanizing at 220 DEG C 15 minutes, then mold under 4 MPas
Molding 2 minutes, releasing agent is Kaolin and the aqueous mixtures of weight ratio 2:1, obtains polyethylene foam deadener XS3.
Comparative example 1
The preparation method of comparative example 1 is substantially the same manner as Example 1, and difference is to be added without rare earth chloride.Gathered
Ethylene foaming deadener DXS1.
Comparative example 2
The preparation method of comparative example 2 is substantially the same manner as Example 1, and difference is to be added without glass fibre.Gathered
Ethylene foaming deadener DXS2.
Comparative example 3
The preparation method of comparative example 3 is substantially the same manner as Example 1, and difference is to be added without Vermiculitum and Halloysitum Rubrum.Obtain
Polyethylene foam deadener DXS3.
Comparative example 4
The preparation method of comparative example 4 is substantially the same manner as Example 1, and difference is to be added without rare earth chloride, glass fibers
Dimension, Vermiculitum and Halloysitum Rubrum.Obtain polyethylene foam deadener DXS4.
Testing example 1-7
Polyethylene foam deadener prepared by embodiment 1-3 and comparative example 1-4 is carried out soundproof effect test, specifically
The results are shown in Table 1-3.
It can be seen that the polyethylene foam deadener soundproof effect of the present invention is good from table 1-3.
The polyethylene foam deadener that table 1 is tested by testing example 1-7 of the present invention soundproof effect under 200Hz
Result.
The polyethylene foam deadener that table 2 is tested by testing example 1-7 of the present invention noise elimination effect under 1000Hz
The result of fruit.
| Project | Material | Acoustic absorptivity A |
| Embodiment 1 | XS1 | 0.31 |
| Embodiment 2 | XS2 | 0.27 |
| Embodiment 3 | XS3 | 0.33 |
| Comparative example 1 | DXS1 | 0.25 |
| Comparative example 2 | DXS2 | 0.22 |
| Comparative example 3 | DXS3 | 0.26 |
| Comparative example 4 | DXS4 | 0.16 |
The polyethylene foam deadener that table 3 is tested by testing example 1-7 of the present invention noise elimination effect under 2000Hz
The result of fruit.
Claims (10)
1. a polyethylene foam deadener, it is characterised in that this polyethylene foam deadener includes the chlorine of 1-5 weight portion
Change rare earth, the glass fibre of 15-100 weight portion, the Vermiculitum of 20-80 weight portion, the Halloysitum Rubrum of 15-40 weight portion, 100-300 weight
CBA, the Low Density Polyethylene of 500-3000 weight portion and the cross-linking agent of 15-60 weight portion of part.
Polyethylene foam deadener the most according to claim 1, it is characterised in that this polyethylene foam deadener bag
Include the rare earth chloride of 2-4 weight portion, the glass fibre of 25-40 weight portion, the Vermiculitum of 30-50 weight portion, the stone of 25-30 weight portion
Fat, the CBA of 200-250 weight portion, the Low Density Polyethylene of 100-1500 weight portion and the crosslinking of 20-30 weight portion
Agent.
Polyethylene foam deadener the most according to claim 1, it is characterised in that described rare earth chloride be lanthanum chloride,
One or more in cerium chloride, Dineodymium trioxide, praseodymium oxide and cerium oxide.
Polyethylene foam deadener the most according to claim 1, it is characterised in that described CBA is azo two
One or more in Methanamide, 4,4'-OBSH and dinitrosopentamethylene tetramine.
Polyethylene foam deadener the most according to claim 1, it is characterised in that described cross-linking agent is four Carbimide .s
One or more in ester, polypropylene glycol glycidyl ether and p-methyl benzenesulfonic acid.
6. the preparation method of a polyethylene foam deadener, it is characterised in that the method includes: according to claim 1-5
The formula of the polyethylene foam deadener described in middle any one, sends into Low Density Polyethylene and carries out first in mixing roll and mix
Refining, is subsequently adding CBA and carries out second mixing, is subsequently adding cross-linking agent and carries out the 3rd mixing, and then then slice puts
Enter in vulcanizing press and vulcanize, then carry out compression molding, obtain polyethylene foam deadener.
Preparation method the most according to claim 6, it is characterised in that the first mixing condition is: temperature is 110～120
DEG C, the time is 3～5 minutes；Second mixing condition is: temperature is 70～100 DEG C, and the time is 10-15 minute；3rd is mixing
Condition is: temperature is 70～100 DEG C, and the time is 10-15 minute.
Preparation method the most according to claim 6, it is characterised in that curing temperature is 180～220 DEG C, cure time is
15～45 minutes.
Preparation method the most according to claim 6, it is characterised in that the pressure of molding is 1～5 MPa, molding time is
30 seconds～2 minutes.
Preparation method the most according to claim 6, it is characterised in that use releasing agent that the polyethylene of compression molding is sent out
Bubble deadener carries out the demoulding, and described releasing agent is weight ratio (1-3): the Kaolin of 1 and aqueous mixtures.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610356067.8A CN106046475A (en) | 2016-05-25 | 2016-05-25 | Polyethylene foam sound-absorbing material and preparation method thereof |
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| CN201610356067.8A CN106046475A (en) | 2016-05-25 | 2016-05-25 | Polyethylene foam sound-absorbing material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106867209A (en) * | 2016-12-29 | 2017-06-20 | 安徽鸿润装饰材料有限公司 | A kind of PET acoustic tiles and preparation method thereof |
| CN109280210A (en) * | 2018-08-25 | 2019-01-29 | 浙江中科恒泰新材料科技有限公司 | A kind of preparation method of flame retardant type Polymethacrylimide abnormal shape foam |
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| CN104369492A (en) * | 2013-08-16 | 2015-02-25 | 神华集团有限责任公司 | Multilayer sheet material and its preparation method and use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106867209A (en) * | 2016-12-29 | 2017-06-20 | 安徽鸿润装饰材料有限公司 | A kind of PET acoustic tiles and preparation method thereof |
| CN109280210A (en) * | 2018-08-25 | 2019-01-29 | 浙江中科恒泰新材料科技有限公司 | A kind of preparation method of flame retardant type Polymethacrylimide abnormal shape foam |
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