CN112794970B - Noise reduction earplug with micro-flatulence and super-soft feeling and preparation method thereof - Google Patents

Noise reduction earplug with micro-flatulence and super-soft feeling and preparation method thereof Download PDF

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CN112794970B
CN112794970B CN202011621812.XA CN202011621812A CN112794970B CN 112794970 B CN112794970 B CN 112794970B CN 202011621812 A CN202011621812 A CN 202011621812A CN 112794970 B CN112794970 B CN 112794970B
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component
parts
preparation
flatulence
polyether polyol
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CN112794970A (en
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崔玉志
孙清峰
郭勇生
燕杰善
刘芳
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Shandong Inov Polyurethane Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more polyetherpolyols having at least three hydroxy groups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06—Protective devices for the ears
    • A61F11/08—Protective devices for the ears internal, e.g. earplugs
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/16—Catalysts

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Otolaryngology (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Psychology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Acoustics & Sound (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to a noise reduction earplug with micro-flatulence and super-softness and a preparation method thereof, and belongs to the technical field of polyurethane. The invention relates to a noise reduction earplug with micro-flatulence and super-soft feeling, which consists of a component A and a component B, wherein the mass ratio of the component A to the component B is 100:33-35; the component A comprises the following raw materials in parts by mass: 40-60 parts of polyether polyol A; 20-40 parts of polyether polyol B; 0-20 parts of polyether polyol C; 0.5-1 part of foam stabilizer; 0.5-1.5 parts of a crosslinking agent; 1.0-1.5 parts of a catalyst; 0.3-0.5 part of foaming agent; 0-5 parts of a pore forming agent; the component B is modified MDI. The earplug has the advantages of slight flatulence, high softness, noise reduction and durability; the invention also provides a simple and feasible preparation method.

Description

Noise reduction earplug with micro-flatulence and super-soft feeling and preparation method thereof
Technical Field
The invention relates to a noise reduction earplug with micro-flatulence and super-softness and a preparation method thereof, belonging to the technical field of polyurethane.
Background
The development of the industry has led to social progress and also has caused certain problems, namely noise is a byproduct of the development of the industry. In general, continuous noise up to 40dB greater can affect 10% of people; 70dB may affect 50%; while the sudden movement noise can wake up 10% of people at 40dB and 70 people at 60 dB. The long-term sleep disturbance can cause insomnia, fatigue and hypomnesis, so as to generate neurasthenia syndrome and the like. In a high-noise environment, the incidence rate of the disease can reach more than 50% -60%. To create a good rest and sleep, the noise must not exceed 50bB, respectively.
CN 110872371A proposes a preparation method of slow rebound sponge earplug adopting Z15 sound-absorbing particles, and the catalyst adopts tin catalyst, belonging to metal catalyst. The long-time wearing of the glasses easily causes inflammation, causes abnormal blood flow and causes hearing loss. Meanwhile, dichloromethane is selected as a physical foaming agent, so that certain environmental pollution is caused.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art, and provide the noise reduction earplug with micro-flatulence and super-softness, which has the advantages of micro-flatulence, high softness, noise reduction and durability; the invention also provides a simple and feasible preparation method.
The invention relates to a noise reduction earplug with micro-flatulence and super-soft feeling, which consists of a component A and a component B, wherein the mass ratio of the component A to the component B is 100:33-35;
the component A comprises the following raw materials in parts by mass:
Figure BDA0002874111970000011
the component B is modified MDI;
the polyether polyol A is flatulence polyether polyol with the functionality of 3, the hydroxyl value of 30-100mgKOH/g, the acid value of less than or equal to 0.8mgKOH/g and the number average molecular weight of 4500-5000; INOVOL F8001A, a new material to shandong-norway, is preferred.
The polyether polyol B is polyether polyol with the functionality of 3 and the hydroxyl value of 240 mgKOH/g; inOVOL F1070A, a new material from Shandong-Nowei, is preferred.
The polyether polyol C is slow rebound polyether polyol with a hydroxyl value of 200 mgKOH/g. INOVOL S385 of new shandong-norway material is preferred. In place of portion F1070, the hand feel at low temperatures of the article can be improved.
The foam stabilizer is a mixture of low-fogging polysiloxane-oxyalkylene block copolymer and slow-rebound silicone oil. The polysiloxane-oxyalkylene block copolymer is preferably AC-5359H, a low fogging product of Shandong Dingxin; the slow rebound silicone oil is preferably L-580 of the Mylar chart.
The cross-linking agent is an alcohol amine cross-linking agent, preferably one or two of Triethanolamine (TEA) or Diethanolamine (DEOA).
The catalyst is a low atomization reaction type catalyst. Preferably DP36L from Shandong Dingxin.
The blowing agent is preferably water.
The pore former is a special slow rebound pore former, preferably INOVOL S1900 of a new Shandong-one Noway material. The adoption of the pore-forming agent can effectively improve the pore-forming of the slow rebound product and meet the fine and smooth effect of the pores.
The NCO mass content of the modified MDI is 25.5-27%. DG5412, a commercially available product from Norway, shandong, is preferred.
The preparation method of the noise reduction earplug with the micro flatulence feeling and the ultra-soft feeling comprises the following steps:
(1) Preparation of component A:
mixing polyether polyol A, polyether polyol B, polyether polyol C, a foam stabilizer, a crosslinking agent, a catalyst, a foaming agent and a cell opening agent at normal temperature at the rotation speed of 50-60 revolutions per minute, and stirring for 0.6-1 hour to obtain a component A;
(2) Preparation of the product:
mixing the component A and the component B according to the mass ratio of 100:33-100:35 (R: 0.75-0.85), then injection molding, sealing, opening the mold for 6-9 minutes, and obtaining the target product.
Compared with the prior art, the invention has the following beneficial effects:
(1) In the component A, F8001 flatulence polyether polyol is selected as a main raw material, so that the prepared product has the characteristic of flatulence, the attaching degree of earplugs and ear skin is increased, and the noise reduction effect is improved;
(2) According to the invention, the flatulence polyether F8001 and the cell opening agent S1900 are matched for use, so that the cell structure is adjusted, and the micro flatulence effect is achieved;
(3) In the invention, S385 is matched with F1070A for use, so that the low-temperature hand feeling of the product is improved, the hand feeling is effectively improved, and the foam is fine, soft and comfortable;
(4) In the invention, the foaming agent is selected from full water, and the catalyst is selected from a reaction type catalyst, so that the smell of the product is reduced, the harm to human skin is reduced, and the foaming agent is a friendly material;
(5) The preparation method is scientific, reasonable, simple and feasible, and is beneficial to industrial production.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the practice of the invention.
The starting materials used in the examples are all commercially available products.
Example 1
The component A is prepared from the following raw materials in parts by mass:
Figure BDA0002874111970000031
the component B is DG5412;
the preparation method of the noise reduction earplug with the micro flatulence feeling and the ultra-soft feeling comprises the following steps:
preparation of component A:
firstly, F8001, F1070A, S385, AC-5359H, L-580, a cross-linking agent DEOA, DP36L, a foaming agent and S1900 are stirred for 1 hour at the normal temperature at the rotating speed of 60 revolutions per minute, samples are taken for inspection, process parameters are met, satisfactory foams are emitted, and qualified products of the component A are obtained;
preparation of a product:
mixing the component A and the component B according to the proportion of 100:33 And (R = 0.8), uniformly mixing, injection molding, sealing, and opening the mold for 8 minutes.
Example 2
The component A is prepared from the following raw materials in parts by mass:
Figure BDA0002874111970000032
Figure BDA0002874111970000041
the component B is DG5412;
the preparation method of the noise reduction earplug with the micro flatulence feeling and the ultra-soft feeling comprises the following steps:
preparation of component A:
firstly, F8001, F1070A, S385, AC-5359H, L-580, a cross-linking agent DEOA, DP36L, a foaming agent and S1900 are stirred for 1 hour at the normal temperature at the rotating speed of 60 revolutions per minute, a sample is taken for inspection, process parameters are met, satisfactory foam is emitted, and a qualified product of the component A is obtained;
preparation of a product:
mixing the component A and the component B according to the ratio of 100:35 And (R = 0.8), uniformly mixing the components in parts by mass, then performing injection molding, sealing and opening the mold for 8 minutes.
Example 3
The component A is prepared from the following raw materials in parts by mass:
Figure BDA0002874111970000042
the component B is DG5412;
the preparation method of the noise reduction earplug with the micro-flatulence feeling and the super-soft performance comprises the following steps:
preparation of component A:
firstly, F8001, F1070A, S385, AC-5359H, L-580, a cross-linking agent DEOA, DP36L, a foaming agent and S1900 are stirred for 1 hour at the normal temperature at the rotating speed of 60 revolutions per minute, samples are taken for inspection, process parameters are met, satisfactory foams are emitted, and qualified products of the component A are obtained;
preparation of a product:
mixing the component A and the component B according to the proportion of 100:33 And (R = 0.8), uniformly mixing the components in parts by mass, then performing injection molding, sealing and opening the mold for 8 minutes.
Example 4
The component A is prepared from the following raw materials in parts by mass:
Figure BDA0002874111970000051
the component B is DG5412;
the preparation method of the noise reduction earplug with the micro-flatulence feeling and the super-soft performance comprises the following steps:
preparation of component A:
firstly, F8001, F1070A, S385, AC-5359H, L-580, a cross-linking agent DEOA, DP36L, a foaming agent and S1900 are stirred for 1 hour at the normal temperature at the rotating speed of 60 revolutions per minute, samples are taken for inspection, process parameters are met, satisfactory foams are emitted, and qualified products of the component A are obtained;
preparation of a product:
mixing the component A and the component B according to the proportion of 100:33 And (R = 0.8), uniformly mixing, injection molding, sealing, and opening the mold for 8 minutes.
Comparative example 1
The component A is prepared from the following raw materials in parts by mass:
Figure BDA0002874111970000052
the component B is DG5412;
the preparation method of the noise reduction earplug comprises the following steps:
preparation of component A:
firstly, F8001, F1070A, AC-5359H, L-580, a cross-linking agent DEOA, DP36L, a foaming agent and S1900 are stirred at the normal temperature and the rotating speed of 60 revolutions per minute for 1 hour, and samples are taken for inspection to meet the process parameters and give out satisfactory foams, thus obtaining the qualified product of the component A;
preparation of the product:
mixing the component A and the component B according to the proportion of 100:33 And (R = 0.8), uniformly mixing the components in parts by mass, then performing injection molding, sealing and opening the mold for 8 minutes.
Comparative example 2
The component A is prepared from the following raw materials in parts by mass:
Figure BDA0002874111970000061
the component B is DG5412;
the preparation method of the noise reduction earplug comprises the following steps:
preparation of component A:
firstly, F8001, F1070A, S385, AC-5359H, L-580, a cross-linking agent DEOA, DP36L and a foaming agent are stirred for 1 hour at the normal temperature at the rotating speed of 60 revolutions per minute, samples are taken for inspection, process parameters are met, satisfactory foams are emitted, and qualified products of the component A are obtained;
preparation of the product:
mixing the component A and the component B according to the proportion of 100:33 And (R = 0.8), uniformly mixing, injection molding, sealing, and opening the mold for 8 minutes.
The noise reducing earplugs prepared in the examples and the comparative examples are respectively subjected to performance tests, and the test results are shown in table 1.
Table 1 noise reducing earplug performance test results
Figure BDA0002874111970000062
/>
Figure BDA0002874111970000071
Remarking: 1. the mechanical property is tested by GB/T-2008 standard.
2. The noise value testing method refers to the technical requirements and the measuring method of the wireless noise reduction earphone.
3. The phase change recovery time refers to GB/T26392-2011 'determination of recovery time of slow rebound foam'.
As can be seen from Table 1, the product prepared by the method can effectively reduce noise and meet the requirement of being lower than 50 dB. From the data of example 1 and comparative example 1, it is seen that the addition of slow rebound polyether S385 can reduce the effect of temperature change on product hardness and improve product comfort at low temperatures. From the data of example 1 and comparative example 2, the cell opening agent S1900 can well adjust the cell closing condition of the product, and ensure that the product has a slightly inflated feeling without shrinkage.
The above-mentioned embodiments are intended to illustrate the technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, additions, equivalents, etc. made within the scope of the principles of the present invention should be included in the scope of the present invention.

Claims (3)

1. The utility model provides an earplug of making an uproar falls with sense of flatulence supersoft which characterized in that: the composition comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
polyether polyol F8001A 60 parts
Polyether polyol F1070A 20 parts
Polyether polyol S385 20 parts
Foam stabilizer AC-5359H 0.6 parts
Foam stabilizer L580.2 parts
Crosslinking agent DEOA 1 part
Catalyst DP36L 1.5 parts
Foaming agent water 0.4 part
Opening agent S1900 parts;
the component B is DG5412;
the preparation method of the noise reduction earplug with the micro-flatulence feeling and the super-soft performance comprises the following steps:
preparation of component A:
firstly, stirring F8001, F1070A, S385, AC-5359H, L-580, a cross-linking agent DEOA, DP36L, a foaming agent and S1900 at the normal temperature and the rotating speed of 60 revolutions per minute for 1 hour to obtain the polyurethane foam;
preparation of the product:
mixing the component A and the component B according to the ratio of 100: and 33, namely, the mass part ratio of R =0.8, uniformly mixing, then carrying out injection molding, sealing and opening the mold for 8 minutes.
2. A noise reduction earplug with micro-flatulence sense and super-soft performance is characterized in that: the composition comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
polyether polyol F8001A 50 parts
Polyether polyol F1070A 30 parts
Polyether polyol S385 20 parts
Foam stabilizer AC-5359H 0.6 parts
Foam stabilizer L580.2 parts
Crosslinking agent DEOA 1 part
Catalyst DP36L 1.5 parts
Foaming agent water 0.4 part
Opening agent S1900 parts;
the component B is DG5412;
the preparation method of the noise reduction earplug with the micro flatulence feeling and the ultra-soft feeling comprises the following steps:
preparation of the component A:
firstly, stirring F8001, F1070A, S385, AC-5359H, L-580, a cross-linking agent DEOA, DP36L, a foaming agent and S1900 at the normal temperature and the rotating speed of 60 revolutions per minute for 1 hour to obtain the polyurethane foam;
preparation of the product:
mixing the component A and the component B according to the proportion of 100: and 35, namely uniformly mixing the components in the mass part ratio of R =0.8, then performing injection molding, sealing and opening the mold for 8 minutes to obtain the product.
3. A noise reduction earplug with micro-flatulence sense and super-soft performance is characterized in that: the composition comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
polyether polyol F8001A 60 parts
Polyether polyol F1070A 30 parts
Polyether polyol S385 10 parts
Foam stabilizer AC-5359H 0.6 parts
Foam stabilizer L580.2 parts
Crosslinking agent DEOA 1 part
Catalyst DP36L 1.5 parts
0.4 part of foaming agent water
Opening agent S1900 parts;
the component B is DG5412;
the preparation method of the noise reduction earplug with the micro flatulence feeling and the ultra-soft feeling comprises the following steps:
preparation of component A:
firstly, stirring F8001, F1070A, S385, AC-5359H, L-580, a cross-linking agent DEOA, DP36L, a foaming agent and S1900 at the normal temperature and the rotating speed of 60 revolutions per minute for 1 hour to obtain the polyurethane foam;
preparation of the product:
mixing the component A and the component B according to the proportion of 100: and 33, namely, the mass part ratio of R =0.8, uniformly mixing, then carrying out injection molding, sealing and opening the mold for 8 minutes.
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CN115322333A (en) * 2022-09-15 2022-11-11 苏州市天利海绵有限公司 Zero-pressure sponge and production method thereof

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CN105315449A (en) * 2015-11-25 2016-02-10 山东一诺威新材料有限公司 Polyether polyol used for low-density gaseousness and slow-resilience foam, preparation method of polyether polyol and slow-resilience foam and preparation method thereof
CN108503786A (en) * 2017-02-26 2018-09-07 耿佃勇 The earplug synthesized with polyether polyol
EP3594255A1 (en) * 2018-07-09 2020-01-15 Covestro Deutschland AG Method for the preparation of viscoelastic polyurethane foams
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US7985468B1 (en) * 2007-07-30 2011-07-26 Sperian Hearing Protection, Llc Foam ear plug or earpiece utilizing recycled pulverized polyurethane foam
CN101842405A (en) * 2007-08-27 2010-09-22 陶氏环球技术公司 Catalysis of viscoelastic foams with bismuth salts
CN107857865A (en) * 2017-11-20 2018-03-30 郑州精益达汽车零部件有限公司 A kind of automotive seat full water environmental protection flame retardant type flatulence memory polyurethane foam and preparation method thereof

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