CN108503786A - The earplug synthesized with polyether polyol - Google Patents
The earplug synthesized with polyether polyol Download PDFInfo
- Publication number
- CN108503786A CN108503786A CN201710105437.5A CN201710105437A CN108503786A CN 108503786 A CN108503786 A CN 108503786A CN 201710105437 A CN201710105437 A CN 201710105437A CN 108503786 A CN108503786 A CN 108503786A
- Authority
- CN
- China
- Prior art keywords
- polyether polyol
- synthesized
- earplug
- parts
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
-
- 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
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0008—Foam properties flexible
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
-
- 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
- C08G2350/00—Acoustic or vibration damping material
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to a kind of earplugs synthesized with polyether polyol, belong to technical field of chemical products.The earplug synthesized with polyether polyol, is prepared from the following raw materials in parts by weight：50~70 parts of polyether polyol, 2~4 parts of water, 0.25~0.4 part of gel catalyst A33,0.5~2.5 part of foam stabiliser, 1~2 part of sponge mill base, 25~40 parts of polymethylene multi-phenenyl isocyanate.The earplug of the present invention has the characteristics that super soft, good hand touch, is not easy to tear, and comfort level when wearing is good, and preparation method is simple, production efficiency height.
Description
Technical field
The present invention relates to a kind of earplugs synthesized with polyether polyol, belong to technical field of chemical products.
Background technology
It, need to be without gross distortion, hardening, breakage, cracking etc. after acoustic insulating ear plug is tested by the method for national Specification
Permanent deformation and rupture, with meet in harsh environment can normal use requirement.Ear plug materials should also have resistance to ag(e)ing,
Aging coefficient is not less than 80%, and has the oil resistivity for preventing that performance is influenced because of human ear secretion grease.But market at present
On noiseproof earplug generally existing sense of touch is poor, problem that comfort level is inadequate, affect the normal use of people.
Invention content
The object of the present invention is to provide a kind of earplugs synthesized with polyether polyol, with soft, sense of touch is good, noise control effect
Good feature.
The earplug of the present invention synthesized with polyether polyol, is prepared from the following raw materials in parts by weight：
Wherein：
The polyether polyol is 7 degrees of functionality, the polyoxypropylene polyol that hydroxyl value is 360~390；
The model L-580 of the foam stabiliser, manufacturer are that the U.S. steps figure.
Preparation method is as follows：Each raw material is measured according to the ratio to be added to and is uniformly mixed in blender and adjusts temperature to 40-50
DEG C, while mold is preheated to 25-35 DEG C, it is then added into and is cured into mold, obtain being closed with polyether polyol
At earplug.
Beneficial effects of the present invention are as follows：
The earplug of the present invention has the characteristics that super soft, good hand touch, is not easy to tear, and comfort level when wearing is good, preparation
Method is simple, and production efficiency is high.
Specific implementation mode
The present invention is described further with reference to embodiments.
Embodiment 1
The earplug synthesized with polyether polyol, is prepared from the following raw materials in parts by weight：
Wherein：
The polyether polyol is 7 degrees of functionality, the polyoxypropylene polyol that hydroxyl value is 360~390.
Preparation method is as follows：Each raw material is measured according to the ratio to be added to and is uniformly mixed in blender and adjusts temperature to 45 DEG C,
Mold is preheated to 30 DEG C simultaneously, is then added into and is cured into mold, obtain the ear synthesized with polyether polyol
Plug.
Claims (3)
1. a kind of earplug synthesized with polyether polyol, it is characterised in that：It is prepared from the following raw materials in parts by weight：
Wherein, the polyether polyol is 7 degrees of functionality, the polyoxypropylene polyol that hydroxyl value is 360~390.
2. the earplug according to claim 1 synthesized with polyether polyol, it is characterised in that：The model of foam stabiliser
L-580, manufacturer are that the U.S. steps figure.
3. the earplug according to claim 1 synthesized with polyether polyol, it is characterised in that：Preparation method is as follows：It will be each
Raw material is measured to be added to according to the ratio and is uniformly mixed in blender and adjusts temperature to 40-50 DEG C, while mold is preheated to 25-35
DEG C, it is then added into and is cured into mold, obtain the earplug synthesized with polyether polyol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105437.5A CN108503786A (en) | 2017-02-26 | 2017-02-26 | The earplug synthesized with polyether polyol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105437.5A CN108503786A (en) | 2017-02-26 | 2017-02-26 | The earplug synthesized with polyether polyol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108503786A true CN108503786A (en) | 2018-09-07 |
Family
ID=63373798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710105437.5A Pending CN108503786A (en) | 2017-02-26 | 2017-02-26 | The earplug synthesized with polyether polyol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108503786A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794970A (en) * | 2020-12-30 | 2021-05-14 | 山东一诺威聚氨酯股份有限公司 | Noise reduction earplug with micro-flatulence and super-soft feeling and preparation method thereof |
-
2017
- 2017-02-26 CN CN201710105437.5A patent/CN108503786A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794970A (en) * | 2020-12-30 | 2021-05-14 | 山东一诺威聚氨酯股份有限公司 | Noise reduction earplug with micro-flatulence and super-soft feeling and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180907 |
|
| WD01 | Invention patent application deemed withdrawn after publication |