CN113796621B - Moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole and preparation method thereof - Google Patents
Moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole and preparation method thereof Download PDFInfo
- Publication number
- CN113796621B CN113796621B CN202111093340.XA CN202111093340A CN113796621B CN 113796621 B CN113796621 B CN 113796621B CN 202111093340 A CN202111093340 A CN 202111093340A CN 113796621 B CN113796621 B CN 113796621B
- Authority
- CN
- China
- Prior art keywords
- woven fabric
- absorbing
- methacrylate
- emulsion
- parts
- 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.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
- A43B17/006—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material multilayered
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/08—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined ventilated
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/049—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using steam or damp
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1811—C10or C11-(Meth)acrylate, e.g. isodecyl (meth)acrylate, isobornyl (meth)acrylate or 2-naphthyl (meth)acrylate
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Composite Materials (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses a moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole and a preparation method thereof, wherein the insole is prepared from the following raw materials in parts by weight: 11-45 parts of non-woven fabric, 2-5 parts of acrylate monomer, 0.3-3 parts of emulsifier, 0.2-2 parts of initiator and 89-97.5 parts of electrolyte solution, wherein the preparation method comprises the steps of preparing oil phase and water phase, emulsifying, adding initiator, laminating, steam curing, washing, drying and punching.
Description
Technical Field
The invention relates to an insole, in particular to an acrylate foam material insole and a preparation method thereof.
Background
With the development of economy and the improvement of living standard, the frequency of activities such as business trip, sports, tourism and the like is higher and higher. People hope to continuously improve the requirements of comfort, air permeability, wear resistance and the like of the shoes, and the insoles are used as the bearing bodies of the weight of human bodies and play an important role in the wearing performance of the shoes.
The common shoe pad, EVA shoe pad, has good supporting force and elasticity, and is often used in sports shoes. However, EVA is not breathable, so that feet sweat, and after long-time sporters wear the shoes, the feet have obvious foot odor. TPR insoles have cushioning properties but are also air impermeable as EVA. Latex insoles are breathable, but have poor abrasion resistance and are prone to cracking. The genuine leather insole is breathable, but is relatively hard, lacks the shock absorption performance and is easy to gather the smell. The textile cloth type insole has certain hygroscopicity and air permeability, but is easy to deform and lacks the damping effect. In the market, a shoe pad is also provided, wherein non-woven fabrics and wood pulp are bonded together by hot melt adhesive, and water-absorbing SAP is put in the shoe pad, so that the shoe pad has good moisture absorption capacity, is easy to deform and weak in shock absorption, and the granular SAP in the shoe pad is easy to separate out and pollute the human body to have negative effects on physical and psychological health.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole and a preparation method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a moisture-absorbing breathable shock-absorbing acrylic ester foam material insole is prepared from the following raw materials in parts by weight: 11-45 parts of non-woven fabric, 2-5 parts of acrylate monomer, 0.3-3 parts of emulsifier, 0.2-2 parts of initiator and 89-97.5 parts of electrolyte solution.
The acrylate monomer consists of a skeleton monomer and a crosslinking monomer, wherein the skeleton monomer is a combination of two or more than two of methyl methacrylate, ethyl dimethacrylate, butyl methacrylate, isobutyl methacrylate, hexyl methacrylate, lauryl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate, isooctyl methacrylate, n-decyl methacrylate, isodecyl methacrylate, tetradecyl methacrylate, octadecyl methacrylate, isooctyl acrylate, n-decyl acrylate, isodecyl acrylate, tetradecyl acrylate and octadecyl acrylate; the crosslinking monomer is one or the combination of more than one of 1, 6-hexanediol diacrylate, 1, 4-butanediol dimethacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, 1, 12-dodecyl dimethacrylate, 1, 14-tetradecanediol dimethacrylate, ethylene glycol dimethacrylate and neopentyl triacrylate.
The non-woven fabric is one or a composition of two of spun-bonded non-woven fabric, hot-air non-woven fabric and spunlace non-woven fabric in any proportion.
The emulsifier is a water-in-oil emulsifier with HLB value of 3-6; the initiator is one of ammonium persulfate, sodium persulfate or potassium persulfate.
The electrolyte solution is calcium chloride solution or sodium chloride solution, and the concentration of the electrolyte solution is 1-4%.
A method for preparing the insole comprises the following steps:
(1) Preparing an oil phase: heating an oil phase mixing pot to 45-55 ℃, simultaneously putting the acrylate monomers and the emulsifier in parts by weight into the pot, and starting stirring at the stirring speed of 100-800 r/min for 15-30 min to obtain an oil phase for later use.
(2) And preparing a water phase: adding calcium chloride and water into the water phase mixing pot, starting stirring at the stirring speed of 30-50 r/min for 15-30 min until the calcium chloride and the water are fully dissolved to obtain a water phase for later use.
(3) And (3) emulsification: transferring the water phase into a high-speed homogenizing emulsifying pot, heating to 75-80 ℃, starting stirring at the stirring speed of 1100-1300 rpm, then dripping the oil phase into the high-speed homogenizing emulsifying pot through a flow injector, starting a homogenizing emulsifying machine after finishing feeding, wherein the rotation speed of a homogenizing head is 8000-10000 rpm, homogenizing and emulsifying for 5-10 minutes to form primary emulsion with the same grade of uniformly dispersed particles, then closing the homogenizing emulsifying machine, continuously stirring the primary emulsion, and keeping stirring for 20-30 minutes to obtain mixed emulsion.
(4) And adding an initiator: and adding an initiator into the mixed emulsion to enable the emulsion to be subjected to cross-linking polymerization, and keeping stirring until a viscous polymerization emulsion is formed.
(5) And laminating: placing the first non-woven fabric on the bottom layer of a forming mould, adding the polymerized emulsion on the upper side of the first non-woven fabric, and then covering and placing the second non-woven fabric on the upper side of the first non-woven fabric to form a three-layer structure of the non-woven fabric clamping the polymerized emulsion; or placing the first non-woven fabric on the bottom layer of a forming mould, adding part of the polymerized emulsion on the upper side of the first non-woven fabric, covering the second non-woven fabric on the upper side of the first non-woven fabric, adding the polymerized emulsion again on the upper side of the second non-woven fabric, and covering the third non-woven fabric to form a structure of clamping the two layers of polymerized emulsion by the three layers of non-woven fabrics, thereby preparing the original material of the insole.
(6) And (3) steam curing: the raw materials are put into a steam pot and are cured by steam to form the non-woven fabric mixed curing material, the steam temperature is 100-120 ℃, and the curing time is 5-20 minutes.
(7) And washing: and (3) washing the material after steam curing, firstly washing the material by using deionized water mixed with a surfactant solution, and then washing the material by using deionized water to remove residual monomers.
(8) And drying: and transferring the washed material to a negative pressure high temperature drying pot for drying and dehydration for 2-4 hours.
(9) And stamping: and (4) carrying out die punching on the dried material to manufacture the insole.
The invention has the beneficial effects that: according to the invention, the non-woven fabric and the acrylate polymer material are combined together to form the composite polymer material, the non-woven fabric mixed acrylate curing technology is creatively applied to manufacture the insole, under the action of a multilayer structure, the insole has the water absorption capacity of more than 4 times of the self weight, the longitudinal breaking strength is more than 10N/25mm, the insole has good air permeability and shock absorption performance, the wearing performance of the shoe is greatly improved, and the comfort of consumers is improved.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a schematic process flow diagram of the present invention.
Detailed Description
In the present example, the temperature and pressure are not particularly emphasized, and they are both normal temperature and normal pressure.
Referring to fig. 1, a moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole is prepared from the following raw materials in parts by weight: 11-45 parts of non-woven fabric, 2-5 parts of acrylate monomer, 0.3-3 parts of emulsifier, 0.2-2 parts of initiator and 89-97.5 parts of electrolyte solution. According to the invention, the non-woven fabric and the acrylate polymer material are combined together to form the composite polymer material, the non-woven fabric mixed acrylate curing technology is creatively applied to manufacture the insole, under the action of a multilayer structure, the insole has the water absorption capacity of more than 4 times of the self weight, the longitudinal breaking strength is more than 10N/25mm, the insole has good air permeability and shock absorption performance, the wearing performance of the shoe is greatly improved, and the comfort of consumers is improved.
The acrylate monomer consists of a skeleton monomer and a crosslinking monomer, wherein the skeleton monomer is methyl methacrylate (chemical formula is C) 5 H 8 O 2 ) Methyl propyl esterEthyl enoate (chemical formula is C) 6 H 10 O 2 ) Ethyl dimethacrylate (chemical formula is C) 7 H 12 O 2 ) Butyl methacrylate (chemical formula C) 8 H 14 O 2 ) Isobutyl methacrylate (chemical formula C) 8 H 14 O 2 ) Hexyl methacrylate (chemical formula C) 10 H 18 O 2 ) Lauryl methacrylate (chemical formula C) 16 H 30 O 2 ) Isobornyl methacrylate (formula C) 14 H 22 O 2 ) Cyclohexyl methacrylate (chemical formula is C) 10 H 16 O 2 ) Isooctyl methacrylate (chemical formula C) 12 H 22 O 2 ) N-decyl methacrylate (chemical formula C) 14 H 26 O 2 ) Isodecyl methacrylate (chemical formula C) 14 H 26 O 2 ) Tetradecyl methacrylate (chemical formula C) 18 H 34 O 2 ) Octadecyl methacrylate (chemical formula C) 22 H 43 O 2 ) Isooctyl acrylate (chemical formula is C) 11 H 20 O 2 ) N-decyl acrylate (chemical formula C) 13 H 24 O 2 ) Isodecyl acrylate (chemical formula C) 13 H 24 O 2 ) Tetradecyl acrylate (chemical formula C) 17 H 32 O 2 ) And octadecyl acrylate (formula C) 21 H 40 O 2 ) Two or a combination of two or more of (a); the crosslinking monomer is 1, 6-hexanediol diacrylate (chemical formula is C) 12 H 18 O 4 ) 1, 4-butanediol dimethacrylate (chemical formula C) 12 H 18 O 4 ) Trimethylolpropane triacrylate (chemical formula is C) 15 H 20 O 6 ) Trimethylolpropane trimethacrylate (chemical formula C) 18 H 26 O 6 ) 1, 12-dodecyl dimethacrylate (formula C) 20 H 34 O 4 ) Two, two1, 14-tetradecanediol acrylate (chemical formula C) 22 H 38 O 4 ) Ethylene glycol dimethacrylate (molecular formula C) 10 H 14 O 4 ) And neopentyl triacrylate (chemical formula C) 8 H 14 O 2 ) One or a combination of more than one of them. The skeleton monomer accounts for 50-80% of the total amount of the acrylate monomer; the crosslinking monomer accounts for 20-50% of the total amount of the acrylate monomer.
The weight of each square meter of the non-woven fabric is 13-35 g, the relative mass ratio accounts for 11-35%, the used non-woven fabric is one or two of spun-bonded non-woven fabric, hot air non-woven fabric, spunlace non-woven fabric and the like, the combination can be multiple, the combination can be freely adjusted according to actual requirements, the weight of each square meter of the final material is 350-750 g, the weight of each square meter of the non-woven fabric is 18-40 g, and the relative mass ratio accounts for 11-45%.
The emulsifier is a water-in-oil emulsifier with HLB value of 3-6, and the emulsifier used in this example is diglycerol isostearate (selected from 73296-86-2 dispersant manufactured by Wuhan eosin Biotech Co., ltd.); the initiator is ammonium persulfate (chemical formula is (NH) 4 ) 2 S 2 O 8 ) Sodium persulfate (chemical formula is Na) 2 S 2 O 8 ) Or potassium persulfate (molecular formula is K) 2 S 2 O 8 ) One kind of (1).
The electrolyte solution is calcium chloride (chemical formula is CaCl) 2 ) The electrolyte solution or sodium chloride (chemical formula is NaCl) solution, the concentration of the electrolyte solution is 2-4%, and the solvent adopts distilled water or purified water.
A method for preparing the insole comprises the following steps:
(1) Preparing an oil phase: heating an oil phase mixing pot to 45-55 ℃, simultaneously putting the acrylate monomers and the emulsifier in parts by weight into the pot, and starting stirring at the stirring speed of 100-800 r/min for 15-30 min to obtain an oil phase for later use.
(2) Preparation of aqueous phase (preparation of electrolyte aqueous solution): adding salt (calcium chloride is adopted in the embodiment) and water into a water phase mixing pot, preparing a 3% salt (calcium chloride) solution, starting stirring at the stirring speed of 30-50 r/min for 15-30 min until the salt is fully dissolved to obtain a water phase for later use.
(3) And emulsification: transferring the water phase into a high-speed homogenizing emulsifying pot, heating to 75-80 ℃, starting stirring at the speed of 1100-1300 r/min, then automatically dripping the oil phase by a flow injector, finishing dripping within 20-30 min according to the volume of the oil phase, starting a homogenizing emulsifying machine after finishing feeding, enabling the rotation speed of a homogenizing head to be 8000-10000 r/min, homogenizing and emulsifying for 5-10 min to form primary emulsion with the same grade of uniformly dispersed particles, then closing the homogenizing emulsifying machine, continuously stirring the primary emulsion, and keeping stirring for 20-30 min to obtain mixed emulsion.
(4) And adding an initiator: and adding an initiator into the mixed emulsion to enable the emulsion to be subjected to cross-linking polymerization, and keeping stirring until a viscous polymerization emulsion is formed.
(5) And laminating: placing a first non-woven fabric on the bottom layer of a forming mould, adding the polymerization emulsion on the upper side of the first non-woven fabric, and then covering and placing a second non-woven fabric on the upper side of the first non-woven fabric to form a three-layer structure of clamping the polymerization emulsion by the non-woven fabrics; or placing the first non-woven fabric on the bottom layer of a forming mould, adding partial polymerized emulsion on the upper side of the first non-woven fabric, covering the upper side of the first non-woven fabric with a second non-woven fabric, adding the polymerized emulsion on the upper side of the second non-woven fabric again, and covering the third non-woven fabric to form a structure of clamping two layers of polymerized emulsion by three layers of non-woven fabrics, thereby preparing the original material of the insole.
(6) And (3) steam curing: placing the raw materials into a steam kettle, and curing by steam to form a non-woven fabric mixed cured material, wherein the steam temperature is 100-120 ℃ (above 100 ℃) and the curing time is 5-20 minutes.
(7) And washing: and washing the material after steam curing, namely washing the material by using deionized water mixed with a surfactant solution, and then washing the material by using deionized water to remove residual monomers until the content of the residual monomers meets the acceptance standard.
(8) And drying: and transferring the washed material into a negative pressure high temperature drying pot for drying and dehydrating for 2-4 hours (more than 2 hours) until the water content meets the acceptance standard, and setting the negative pressure value and the temperature according to the rules of instruments, wherein no special requirement exists.
(9) And stamping: and (4) carrying out die punching on the dried material to manufacture the insole.
The insole is prepared by creatively applying a non-woven fabric mixed acrylate curing technology on the preparation method, and under the action of a multilayer structure, the insole has the water absorption capacity of more than 4 times of the self weight, the longitudinal breaking strength of more than 10N/25mm, good air permeability and shock absorption performance, the wearing performance of the shoe is greatly improved, and the comfort of consumers is improved.
Specific example 1: 3.2kg of acrylate monomers (wherein 1.2kg of isooctyl acrylate, 0.8kg of 1, 4-butanediol dimethacrylate, 0.7kg of isooctyl methacrylate and 0.5kg of 1, 6-hexanediol diacrylate); 0.5kg of diglycerol isostearate (emulsifier); ammonium persulfate (initiator) 0.3kg; 96kg of electrolyte salt aqueous solution (3% calcium chloride solution); the nonwoven fabric used was a 25gsm hot air nonwoven fabric as the first nonwoven fabric, and a 20gsm spunbond nonwoven fabric as the second nonwoven fabric (the top and bottom layers were nonwoven fabrics, and the middle layer was an acrylic polymer emulsion).
The process comprises the following steps:
1) Preparation of oil and aqueous phases:
preparing an oil phase: heating the oil phase mixing pot to 45-55 ℃, putting the weighed acrylate monomers and the emulsifier into the pot, and starting stirring at the stirring speed of 100-800 rpm for 15-30 minutes until the mixture is uniform for later use.
Preparing an aqueous phase: and (3) preparing 96kg of 3% calcium chloride solution in a water phase mixing pot, stirring at the speed of 30-50 r/min for 15-30 min until the calcium chloride solution is fully dissolved for later use.
2) Transferring the water phase into a high-speed homogenizing emulsifying pot, heating to 75-80 ℃, starting high-speed stirring at the rotation speed of 1100-1300 rpm, then gradually dripping the oil phase into the water phase, starting a homogenizing emulsifying machine after the feeding is finished, starting a homogenizing head at the rotation speed of 8000-10000 rpm, keeping homogenizing and emulsifying for 5-10 minutes to form primary emulsion with the same grade of particles and uniform dispersion, then closing the homogenizing, starting high-speed stirring at the stirring speed of 1100-1300 rpm, and continuously keeping stirring for 20-30 minutes.
3) Adding an initiator into the mixed emulsion in the emulsifying pot to ensure that the emulsion is crosslinked and polymerized, stirring was maintained until a viscous polymeric emulsion was formed.
4) The first non-woven fabric is placed on the bottom layer of a forming die, then the polymerized emulsion is added on the upper side of the first non-woven fabric, and then the second non-woven fabric is placed on the upper side of the first non-woven fabric, so that a three-layer structure with the polymerized emulsion clamped by the non-woven fabrics is formed.
5) And (3) putting a forming die of the non-woven fabric superposed polymerized emulsion into a steam pot, and curing by steam to form a non-woven fabric mixed cured material, wherein the steam temperature is more than 100 ℃, and the curing time is 5-20 minutes.
6) After curing, the material is washed until the residual monomer content meets the acceptance criteria.
7) Transferring the solidified and washed polymer into a negative pressure high temperature drying pot for drying and dehydration. And drying for more than 2 hours until the moisture content meets the acceptance standard.
8) The material is punched to form the insole.
The results of the main performance tests on the insole obtained in example 1 are as follows:
| serial number | Main test items | Unit of measurement | Test method and execution standard | Test results |
| 1 | Multiple of water absorption | Multiple times | The material was immersed in distilled water for 1 minute, then drained for 90 seconds, and the mass difference before and after the water absorption was weighed. | 7.8 |
| 2 | Shock absorbing capacity | NA | Placing a 4mm non-toughened glass block on the platform, spreading the material to be tested above the non-toughened glass block, and using 500g of stainless steel Steel solid sphere, self-falling 300mm high from the material. And observing whether the glass is broken or not. | Does not crack or decrease Vibration damper |
| 3 | Elastic recovery rate | % | Measuring the thickness of the material, pressing for 1 hour by using a pressing block with the pressure of 50g/cm < 2 >, removing the pressing block for 5 minutes, the thickness is measured. Calculating the proportion of the recovery of thickness | 98 |
| 4 | Air permeability | ml/min | The test area is 8.04cm according to GB/T5453, gas pressure 100pa 2 | 2536 |
| 5 | Longitudinal breaking Strength MD | N/25mm | Cutting a sample with the length of 120mm, the width of 25mm, the clamping distance of 100mm and the stretching speed of 500m/min | 18.7 |
| 6 | Transverse rupture Strength MD | N/25mm | The sample is cut to have the length of 120mm, the width of 25mm, the clamping distance of 100mm and the configuration speed of 500m/min | 5.1 |
Specific example 2: 5kg of acrylate monomers (wherein n-decyl acrylate is 2.6kg, ethylene glycol dimethacrylate is 1.5kg, n-decyl methacrylate is 0.8kg and 1, 6-hexanediol diacrylate is 0.7 kg); 1kg of diglycerol isostearate (emulsifier); ammonium persulfate (initiator) 0.4kg; 93kg of electrolyte salt aqueous solution (3% calcium chloride solution); the first nonwoven fabric of the bottom layer uses 25gsm hot air non-woven fabric, the second nonwoven fabric of the middle layer uses 18gsm spunbonded non-woven fabric, the third nonwoven fabric of the upper layer uses 21gsm spunbonded non-woven fabric (five-layer structure, namely, the uppermost layer, the middle layer and the bottom layer are non-woven fabrics, and acrylate polymerization emulsion is arranged between the adjacent non-woven fabrics).
The process comprises the following steps:
1) Preparation of oil and aqueous phases:
preparing an oil phase: heating the oil phase mixing pot to 45-55 ℃, putting the weighed acrylate monomers and the emulsifier into the pot, and starting stirring at the stirring speed of 100-800 rpm for 15-30 minutes until the mixture is uniform for later use.
Preparing an aqueous phase: and (3) preparing 96kg of 3% calcium chloride solution in a water phase mixing pot, wherein the stirring speed is 30-50 r/min, and the stirring time is 15-30 min until the calcium chloride solution is fully dissolved for later use.
2) Transferring the water phase into a high-speed homogenizing emulsifying pot, heating to 75-80 ℃, starting high-speed stirring at the stirring speed of 1100-1300 rpm, gradually dripping the oil phase into the pot, starting a homogenizing emulsifying machine after the feeding is finished, keeping the homogenizing emulsifying for 5-10 minutes at the homogenizing head rotation speed of 8000-10000 rpm to form primary emulsion with uniform dispersion and same grade of particles, then closing the homogenizing pot, starting high-speed stirring at the stirring speed of 1100-1300 rpm, and continuously keeping stirring for 20-30 minutes.
3) Adding an initiator into the mixed emulsion in the emulsifying pot to enable the emulsion to be cross-linked and polymerized, and keeping stirring until a viscous polymerized emulsion is formed.
4) The first non-woven fabric is placed on the bottom layer of a forming mould, then partial polymerization emulsion is added on the upper side of the first non-woven fabric, then a second non-woven fabric is placed on the upper side of the first non-woven fabric, then polymerization emulsion is added on the upper side of the second non-woven fabric, and finally a third non-woven fabric is placed on the uppermost side of the second non-woven fabric, so that a five-layer structure is formed.
5) And putting the forming die of the non-woven fabric superposed polymerized emulsion into a steam pot, and curing by steam to form the non-woven fabric mixed curing material. The steam temperature is above 100 ℃, and the curing time is 5-20 minutes.
6) After curing, the material is washed until the residual monomer content meets the acceptance criteria.
7) Transferring the solidified and washed polymer into a negative pressure high temperature drying pot for drying and dehydration. And drying for more than 2 hours until the moisture content meets the acceptance standard.
8) The material is punched to form the insole.
The results of the main performance tests on the material obtained in example 2 are as follows:
| serial number | Main test items | Unit of measurement | Test method and execution standard | Test results |
| 1 | Water absorption multiple | Multiple times | The material was immersed in distilled water for 1 minute, then drained for 90 seconds, and the mass difference before and after the water absorption was weighed. | 5.6 |
| 2 | Shock absorbing capacity | NA | Placing a 4mm non-toughened glass block on the platform, spreading the material to be tested above the non-toughened glass block, and using 500g of stainless steel Steel solid sphere, self-falling 300mm high from the material. And observing whether the glass is broken or not. | Without cracking Shock absorption |
| 3 | Elastic recovery rate | % | Measuring the thickness of the material, pressing for 1 hour by using a pressing block with the pressure of 50g/cm < 2 >, removing the pressing block for 5 minutes, the thickness is measured. Calculating the proportion of the recovery of thickness | 99 |
| 4 | Air permeability | ml/min | The test area is 8.04cm according to GB/T5453, gas pressure 100pa 2 | 3200 |
| 5 | Longitudinal breaking Strength MD | N/25mm | The length of the sample is 120mm, the width is 25mm, and the clamping distance is100mm, drawing speed 500m/min | 30.5 |
| 6 | Transverse rupture Strength MD | N/25mm | The sample is cut to have the length of 120mm, the width of 25mm, the clamping distance of 100mm and the configuration speed of 500m/min | 8.9 |
In conclusion, the two groups of result data show that compared with the prior art, the invention has the advantages that the longitudinal rupture strength is more than 10N/25mm, the transverse rupture strength is more than 4N/25mm, the water absorption times are more than 4 times of the self weight, the shock absorption capacity is good, the elastic recovery rate is more than 95%, the air permeability is more than 1500ml/min, and the air permeability is good.
The above embodiments do not limit the scope of the present invention, and those skilled in the art can make equivalent modifications and variations without departing from the overall concept of the present invention.
Claims (5)
1. A preparation method of a moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole is prepared from the following raw materials in parts by weight: 11-45 parts of non-woven fabric, 2-5 parts of acrylate monomer, 0.3-3 parts of emulsifier, 0.2-2 parts of initiator and 89-97.5 parts of electrolyte solution;
the preparation method of the moisture-absorbing breathable shock-absorbing acrylic ester foam material insole is characterized by comprising the following steps:
(1) And preparing an oil phase: heating an oil phase mixing pot to 45-55 ℃, putting the acrylate monomers and the emulsifier in parts by weight into the pot at the same time, and starting stirring at the stirring speed of 100-800 r/min for 15-30 min to obtain an oil phase for later use;
(2) And preparing a water phase: adding calcium chloride and water into a water phase mixing pot, starting stirring at the stirring speed of 30-50 revolutions per minute for 15-30 minutes until the calcium chloride and the water are fully dissolved to obtain a water phase for later use;
(3) And (3) emulsification: transferring the water phase into a high-speed homogenizing emulsifying pot, heating to 75-80 ℃, starting stirring at the speed of 1100-1300 rpm, then dripping the oil phase into the high-speed homogenizing emulsifying pot through a flow injector, starting a homogenizing emulsifying machine after finishing feeding, enabling the rotation speed of a homogenizing head to be 8000-10000 rpm, homogenizing and emulsifying for 5-10 minutes to form primary emulsion with the same grade of uniformly dispersed particles, then closing the homogenizing emulsifying machine, continuously stirring the primary emulsion, and keeping stirring for 20-30 minutes to obtain mixed emulsion;
(4) And adding an initiator: adding an initiator into the mixed emulsion to enable the emulsion to be subjected to cross-linking polymerization, and keeping stirring until a viscous polymerization emulsion is formed;
(5) And laminating: placing the first non-woven fabric on the bottom layer of a forming mould, adding the polymerized emulsion on the upper side of the first non-woven fabric, and then covering and placing the second non-woven fabric on the upper side of the first non-woven fabric to form a three-layer structure of the non-woven fabric clamping the polymerized emulsion; or placing the first non-woven fabric on the bottom layer of a forming mould, adding partial polymerized emulsion on the upper side of the first non-woven fabric, covering the upper side of the first non-woven fabric with a second non-woven fabric, adding the polymerized emulsion on the upper side of the second non-woven fabric again, and covering the third non-woven fabric to form a structure of clamping two layers of polymerized emulsion by three layers of non-woven fabrics, thereby preparing the original material of the insole;
(6) And (3) steam curing: putting the raw material into a steam kettle, and curing by steam to form a non-woven fabric mixed curing material, wherein the steam temperature is 100-120 ℃, and the curing time is 5-20 minutes;
(7) And washing: washing the material after steam curing, firstly washing with deionized water mixed with a surfactant solution, and then washing with deionized water to remove residual monomers;
(8) And drying: transferring the washed material to a negative pressure high temperature drying pot for drying and dehydration for 2-4 hours;
(9) And stamping: and (4) carrying out die punching on the dried material to manufacture the insole.
2. The method for preparing the moisture-absorbing, breathable and shock-absorbing acrylic ester foam insole according to claim 1, wherein the acrylic ester monomer is composed of a skeleton monomer and a crosslinking monomer, and the skeleton monomer is a combination of two or more of methyl methacrylate, ethyl dimethacrylate, butyl methacrylate, isobutyl methacrylate, hexyl methacrylate, lauryl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate, isooctyl methacrylate, n-decyl methacrylate, isodecyl methacrylate, tetradecyl methacrylate, octadecyl methacrylate, isooctyl acrylate, n-decyl acrylate, isodecyl acrylate, tetradecyl acrylate and octadecyl acrylate; the crosslinking monomer is a combination of more than one of 1, 6-hexanediol diacrylate, 1, 4-butanediol dimethacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, 1, 12-dodecyl dimethacrylate, 1, 14-tetradecanediol dimethacrylate, ethylene glycol dimethacrylate and neopentyl triacrylate.
3. The method for preparing the moisture-absorbing, air-permeable and shock-absorbing acrylic foam insole according to claim 1, wherein the non-woven fabric is one or a combination of two of spun-bonded non-woven fabric, hot-air non-woven fabric and spun-laced non-woven fabric in any proportion.
4. The method for preparing the moisture-absorbing breathable shock-absorbing acrylic ester foam material insole according to claim 1, wherein the emulsifier is a water-in-oil emulsifier with HLB value of 3-6; the initiator is one of ammonium persulfate, sodium persulfate or potassium persulfate.
5. The method for preparing moisture-absorbing, air-permeable, shock-absorbing acrylic ester foam insole according to claim 1, wherein said electrolyte solution is calcium chloride solution or sodium chloride solution, and the concentration of said electrolyte solution is 1-4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093340.XA CN113796621B (en) | 2021-09-17 | 2021-09-17 | Moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093340.XA CN113796621B (en) | 2021-09-17 | 2021-09-17 | Moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113796621A CN113796621A (en) | 2021-12-17 |
| CN113796621B true CN113796621B (en) | 2023-01-31 |
Family
ID=78939675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111093340.XA Active CN113796621B (en) | 2021-09-17 | 2021-09-17 | Moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113796621B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3522051A1 (en) * | 1985-06-20 | 1987-01-02 | Freudenberg Carl Fa | DISPOSABLE DISCLOSURE OR CLOTHING CLOTH FOR SURGERY AND METHOD FOR THE PRODUCTION THEREOF |
| US5260345A (en) * | 1991-08-12 | 1993-11-09 | The Procter & Gamble Company | Absorbent foam materials for aqueous body fluids and absorbent articles containing such materials |
| US6426445B1 (en) * | 1995-01-10 | 2002-07-30 | The Procter & Gamble Company | Absorbent members comprising an agglomerate of hydrogel-forming absorbent polymer and particulate hydrophilic foam |
| US6107356A (en) * | 1999-08-23 | 2000-08-22 | The Procter & Gamble Company | High suction polymeric foam materials |
| CN101161702A (en) * | 2007-10-24 | 2008-04-16 | 武汉科技学院 | Water dispersion method for preparing epoxy resin composite material |
| CN101838370B (en) * | 2010-02-12 | 2012-03-28 | 长兴化学工业(中国)有限公司 | Aqueous concoction, aqueous polymer emulsion prepared from same and application thereof |
| CN104193886B (en) * | 2014-07-23 | 2016-11-23 | 佛山市联塑万嘉新卫材有限公司 | Highly-breathable hydrophilic acrylic ester foamed materials and its preparation method and application |
-
2021
- 2021-09-17 CN CN202111093340.XA patent/CN113796621B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113796621A (en) | 2021-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107397628B (en) | It is a kind of to have imbibition from the composite absorption core of expanded type liquid-conveying ducts and its application | |
| CN105295076B (en) | A kind of cool feeling hydrogel and preparation method thereof, cool feeling fabric and preparation method thereof | |
| TW353089B (en) | Absorbent foam materials for aqueous fluids made from high internal phase emulsions having very high water-to-oil ratios | |
| García-Ramos et al. | The relationship between the lower-body muscular profile and swimming start performance | |
| US4199639A (en) | Sandwich-structured double layer floor covering | |
| JPH11502541A (en) | Crosslinked polymers made from 1,3,7-octatriene and similar composite polymers | |
| CN111746073B (en) | Elastic water-absorbing floor mat | |
| CN108978250B (en) | Suede nap hydrolysis-resistant ultra-soft protein leather and preparation method thereof | |
| CN113796621B (en) | Moisture-absorbing, breathable and shock-absorbing acrylic ester foam material insole and preparation method thereof | |
| CN109942753A (en) | A kind of macromolecule water uptake resin, composite absorption core and preparation method thereof | |
| Serweta et al. | Improve of footwear comfort sensation with material packages and knitted fabrics | |
| CN203935331U (en) | A kind of multiple structure absorbent cores and processing unit (plant) thereof for nursing pad | |
| CN216019460U (en) | Moisture-absorbing, breathable and shock-absorbing acrylic ester foam composite material insole | |
| CN217040514U (en) | Quick-suction dry sanitary towel | |
| CN105369685B (en) | Kraft fibers shoe-pad paper and preparation method thereof | |
| CN108530876A (en) | A kind of elastic shock attenuation open-work bed course, processing method and construction technology | |
| CN107048593B (en) | Foot-soaking-preventing insole for high-strength load-bearing marching and preparation method thereof | |
| CN113771439A (en) | Non-woven fabric toughened water-absorbing acrylate high polymer material and preparation method thereof | |
| CN108420145A (en) | A kind of preparation method of bradyseism type insole | |
| CN211984095U (en) | Disposable shoe-pad | |
| CN105769449A (en) | Wood-pulp-free paper diaper | |
| CN212465128U (en) | Lightweight breathable safety shoe | |
| CN215583286U (en) | Dry, comfortable, deodorant and bacteriostatic insole | |
| CN204863696U (en) | Not wet structure of ventilative urine of antiseep | |
| TWI729845B (en) | Elastic absorbent floor mat (2) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |