CN115109224A - Polyurethane adds supercritical foaming insole of bamboo fibre - Google Patents

Polyurethane adds supercritical foaming insole of bamboo fibre Download PDF

Info

Publication number
CN115109224A
CN115109224A CN202210966523.6A CN202210966523A CN115109224A CN 115109224 A CN115109224 A CN 115109224A CN 202210966523 A CN202210966523 A CN 202210966523A CN 115109224 A CN115109224 A CN 115109224A
Authority
CN
China
Prior art keywords
foaming
polyurethane
agent
bamboo fiber
insole
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.)
Withdrawn
Application number
CN202210966523.6A
Other languages
Chinese (zh)
Inventor
官红晖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Haowei New Material Technology Co ltd
Original Assignee
Dongguan Haowei New Material Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongguan Haowei New Material Technology Co ltd filed Critical Dongguan Haowei New Material Technology Co ltd
Priority to CN202210966523.6A priority Critical patent/CN115109224A/en
Publication of CN115109224A publication Critical patent/CN115109224A/en
Withdrawn legal-status Critical Current

Links

Images

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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04—Plastics, rubber or vulcanised fibre
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • 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
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3206—Polyhydroxy compounds aliphatic
    • 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
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4081—Mixtures of compounds of group C08G18/64 with other macromolecular compounds
    • 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
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • 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
    • C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C08J9/08—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 carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/06—Polyurethanes from polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2483/10—Block- or graft-copolymers containing polysiloxane sequences
    • C08J2483/12—Block- or graft-copolymers containing polysiloxane sequences containing polyether sequences

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention provides a polyurethane bamboo fiber added supercritical foaming insole, which relates to the technical field of foaming insoles and comprises the following components in parts by mass: 44-50% of polyester polyol, 32-36% of isocyanate, 4-6% of bamboo fiber particles, 0.02-0.1% of a catalyst, 0.5-1% of a catalyst, 0.3-0.8% of a foaming agent, 2-4% of a foaming agent, 0.8-1% of a wetting agent, 2-7% of a cross-linking agent and 0.8-1% of a foam finishing agent. According to the invention, two foaming agents and a foam finishing agent are added to improve the cell structure of the finished product foamed insole, so that a stable and balanced cell supporting system can be formed in the finished product foamed insole, the finished product foamed insole has the advantages of low density, high elasticity and the like, the dimension stability is high, the reject ratio is reduced, the production cost of the finished product foamed insole is low, the good production, processing and use effects can be achieved, and meanwhile, a bamboo fiber particle improving material is added, so that the finished product foamed insole can be degraded, and the effect of environmental protection and use is achieved.

Description

Polyurethane adds supercritical foaming insole of bamboo fibre
Technical Field
The invention relates to the technical field of foaming midsoles, in particular to a polyurethane-added bamboo fiber supercritical foaming midsole.
Background
When the existing polyurethane foaming insole is processed, the existing polyurethane foaming insole is often processed and formed through the steps of extruding the polyurethane foaming insole to a mold through a tpu-high temperature melting-extruding machine, injecting nitrogen for foaming under the condition of high temperature and high pressure, cooling for forming and the like, and the size and the density of the foam holes of the polyurethane foaming insole processed in the mode are difficult to control, so that the product is easy to retract seriously, the size of the product is unstable and the product is seriously deformed, meanwhile, the reject ratio is high, the production cost of the product is high, and the good using effect is difficult to achieve.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a polyurethane-added bamboo fiber supercritical foaming midsole.
In order to achieve the purpose, the invention adopts the following technical scheme: a polyurethane bamboo fiber added supercritical foaming insole is composed of the following components in parts by mass: 44-50% of polyester polyol, 32-36% of isocyanate, 4-6% of bamboo fiber particles, 0.02-0.1% of a catalyst, 0.5-1% of a catalyst, 0.3-0.8% of a foaming agent, 2-4% of a foaming agent, 0.8-1% of a wetting agent, 2-7% of a cross-linking agent and 0.8-1% of a foam finishing agent.
In order to prepare polyurethane, the improvement of the invention is that the a catalyst is stannous octoate or one of dibutyltin dilaurate and mercury acetate.
In order to rapidly mold polyurethane, the improvement of the invention is that the b catalyst is one of trihexyldiamine and dimethylethanolamine.
In order to stabilize the foaming, the invention improves that the foaming agent a is azodicarbonamide.
In order to achieve a better foaming effect, the improvement of the invention is that the foaming agent b is sodium bicarbonate.
In order to achieve sufficient strength of the polyurethane, the invention is further improved in that the crosslinking agent is one of 1, 4-butanediol and hexanediol.
In order to stabilize the polyurethane formation, the improvement of the invention is that the wetting agent is one or a mixture of alkyl sulfate, sulfonate and fatty acid in any proportion.
In order to achieve a uniform distribution of the gas bubbles, the foam finishing agent is a water-soluble polyether siloxane.
The processing method of the polyurethane-added bamboo fiber supercritical foaming insole comprises the following steps:
s1: pouring polyester polyol, isocyanate, bamboo fiber particles, a catalyst, b catalyst, a foaming agent, b foaming agent, wetting agent, cross-linking agent and foam finishing agent into a PU (polyurethane) filling machine together according to a preset proportion;
s2: heating and mixing the materials by a PU filling machine to ensure that the temperature of the materials reaches 30-40 ℃, then introducing the materials into a middle sole mould by the PU filling machine, and carrying out mould covering treatment;
s3: putting the covered die into an oven, and heating and curing at 50-60 ℃ for 8-10 minutes;
s4: and then taking the mold out of the oven, after the mold is cooled, carrying out mold drawing treatment on the molded insole, and then carrying out detection and packaging to obtain the finished product foamed insole.
Compared with the prior art, the invention has the advantages and positive effects that,
according to the invention, two foaming agents and foam finishing agents are added, and different forming methods are used for processing, so that the cell structure of the finished product foaming insole is improved, a stable and balanced cell supporting system can be formed in the finished product foaming insole, the finished product foaming insole has the advantages of low density, high elasticity and the like, the dimension stability is high, the reject ratio is reduced, the production cost of the finished product foaming insole is low, the good production, processing and use effects can be achieved, and meanwhile, the bamboo fiber particle improving material is added, so that the finished product foaming insole can be degraded, and the effect of environmental protection is achieved.
Drawings
Fig. 1 is a flow chart of a polyurethane-added bamboo fiber supercritical foaming midsole provided by the invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1, the present invention provides a technical solution: a polyurethane bamboo fiber added supercritical foaming insole is composed of the following components in parts by mass: 44-50% of polyester polyol, 32-36% of isocyanate, 4-6% of bamboo fiber particles, 0.02-0.1% of a catalyst, 0.5-1% of a catalyst, 0.3-0.8% of a foaming agent, 2-4% of a foaming agent, 0.8-1% of a wetting agent, 2-7% of a cross-linking agent and 0.8-1% of a foam finishing agent.
The catalyst a is stannous octoate or one of dibutyltin dilaurate and mercuric acetate, the catalyst b is one of hexatin diamine and dimethylethanolamine, the reaction is promoted by a catalyst so that the polyurethane can be quickly molded, the foaming agent a is azodicarbonamide, the foaming agent b is sodium bicarbonate, foaming agent is added to enable the polyurethane to form air bubbles, the cross-linking agent is one of 1, 4 butanediol and hexanediol, the cross-linking agent can improve the strength and the hardness of the polyurethane, so that the finished foamed middle sole has enough strength, the wetting agent is one or a mixture of more than one of alkyl sulfate, sulfonate and fatty acid in any proportion, the wetting agent can improve the hydrophilicity of polyurethane, so that the polyurethane is stably formed, the foam finishing agent is water-soluble polyether siloxane, and the foam finishing agent can ensure that air holes are fine and uniform, so that the finished foamed insole has the advantages of low density, high elasticity and the like.
The processing method of the polyurethane-added bamboo fiber supercritical foaming insole comprises the following steps:
s1: pouring polyester polyol, isocyanate, bamboo fiber particles, a catalyst, b catalyst, a foaming agent, b foaming agent, wetting agent, cross-linking agent and foam finishing agent into a PU (polyurethane) filling machine together according to a preset proportion;
s2: heating and mixing the materials by a PU filling machine to ensure that the temperature of the materials reaches 30-40 ℃, then introducing the materials into a middle sole mould by the PU filling machine, and carrying out mould covering treatment;
s3: putting the covered die into an oven, and heating and curing at 50-60 ℃ for 8-10 minutes;
s4: and then taking the mold out of the oven, after the mold is cooled, carrying out mold drawing treatment on the molded insole, and then carrying out detection and packaging to obtain the finished product foamed insole.
The working principle is as follows: through adding two kinds of foamers and foam finishing agent, and process through the forming method of difference, improve the cell structure in finished product foaming insole, so that can form stable balanced cell braced system in the finished product foaming insole, so that finished product foaming insole can have advantages such as low density high elasticity, and dimensional stability, the defective rate has been reduced, so that the manufacturing cost in finished product foaming insole is lower, can reach better production and processing result of use, add bamboo fiber granule simultaneously and improve the material, so that finished product foaming insole can degrade, reach the effect of environmental protection use.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes by using the technical contents disclosed in the above description to other fields, but any simple modification, equivalent change and change made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (9)

1. A polyurethane adds the overcritical foaming insole of bamboo fibre, characterized by that: the polyurethane-added bamboo fiber supercritical foaming midsole consists of the following components in parts by mass: 44-50% of polyester polyol, 32-36% of isocyanate, 4-6% of bamboo fiber particles, 0.02-0.1% of a catalyst, 0.5-1% of a catalyst, 0.3-0.8% of a foaming agent, 2-4% of a foaming agent, 0.8-1% of a wetting agent, 2-7% of a cross-linking agent and 0.8-1% of a foam finishing agent.
2. The polyurethane-added bamboo fiber supercritical foaming midsole of claim 1, characterized in that: the catalyst a is stannous octoate or one of dibutyl tin dilaurate and mercury acetate.
3. The polyurethane-added bamboo fiber supercritical foaming midsole of claim 1, characterized in that: the catalyst b is one of tin trichloride diamine and dimethyl ethanolamine.
4. The polyurethane-added bamboo fiber supercritical foaming midsole of claim 1, characterized in that: the foaming agent a is azodicarbonamide.
5. The polyurethane-added bamboo fiber supercritical foaming midsole of claim 1, characterized in that: the foaming agent b is sodium bicarbonate.
6. The polyurethane-added bamboo fiber supercritical foaming midsole of claim 1, characterized in that: the cross-linking agent is one of 1, 4 butanediol and hexanediol.
7. The polyurethane-added bamboo fiber supercritical foaming midsole of claim 1, characterized in that: the wetting agent is one or a mixture of more of alkyl sulfate, sulfonate and fatty acid in any proportion.
8. The polyurethane-added bamboo fiber supercritical foaming midsole of claim 1, characterized in that: the foam finishing agent is water-soluble polyether siloxane.
9. The polyurethane-added bamboo fiber supercritical foaming midsole of claim 1, characterized in that: the processing method of the polyurethane-added bamboo fiber supercritical foaming insole comprises the following steps:
s1: pouring polyester polyol, isocyanate, bamboo fiber particles, a catalyst, b catalyst, a foaming agent, b foaming agent, wetting agent, cross-linking agent and foam finishing agent into a PU (polyurethane) filling machine together according to a preset proportion;
s2: heating and mixing the materials by a PU filling machine to ensure that the temperature of the materials reaches 30-40 ℃, then introducing the materials into a middle sole mould by the PU filling machine, and carrying out mould covering treatment;
s3: putting the covered mould into an oven, and heating and curing at 50-60 ℃ for 8-10 minutes;
s4: and then taking the mold out of the oven, after the mold is cooled, carrying out mold drawing treatment on the molded insole, and then carrying out detection and packaging to obtain the finished product foamed insole.
CN202210966523.6A 2022-08-12 2022-08-12 Polyurethane adds supercritical foaming insole of bamboo fibre Withdrawn CN115109224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210966523.6A CN115109224A (en) 2022-08-12 2022-08-12 Polyurethane adds supercritical foaming insole of bamboo fibre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210966523.6A CN115109224A (en) 2022-08-12 2022-08-12 Polyurethane adds supercritical foaming insole of bamboo fibre

Publications (1)

Publication Number Publication Date
CN115109224A true CN115109224A (en) 2022-09-27

Family

ID=83335683

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210966523.6A Withdrawn CN115109224A (en) 2022-08-12 2022-08-12 Polyurethane adds supercritical foaming insole of bamboo fibre

Country Status (1)

Country Link
CN (1) CN115109224A (en)

Similar Documents

Publication Publication Date Title
TWI667285B (en) Production of expanded thermoplastic elastomer
AU674008B2 (en) Method and apparatus for making formed laminate and resultant product
CN103534288B (en) A foam composition and its uses thereof
JP2003514040A (en) Method for producing high resilience foam
CN104558508A (en) All-water foamed molding slow-rebound bloating foamed cotton of MDI (polymethylene polyphenyl isocyanate) with density of 45kg/m<3> and preparation method
MXPA02006301A (en) Gas assisted injection moulding.
EP0251803B1 (en) Process for preparing polyurethane foams having zones of differing hardness
CA1281866C (en) Process for the production of moldings of different elasticity or hardness from at least two liquid, foam- forming reaction mixtures
CA1188048A (en) Process for the manufacture of foamed structures
CN115109224A (en) Polyurethane adds supercritical foaming insole of bamboo fibre
CN109666112A (en) A kind of roof of the vehicle polyurethane foam and preparation method thereof
CN108129692B (en) Foaming silicon rubber material and preparation method and application thereof
JP2002144366A (en) Foamed molding and article using foamed molding
CN101503503B (en) Preparation of wood-like sulfuration resistant material for polyether type polyurethane shoes
CN106565931A (en) Formula and preparation method for degradable slow-rebound shoe material
CN110951241A (en) Lavender memory cotton and preparation method thereof
EP2707217B1 (en) Method of manufacturing a fabric-laminated foam article
CN106674480A (en) Preparation method of NDI (Naphthalene Diisocyanate) modified MDI (Diphenyl Methane Diisocyanate)-based polyurethane microporous elastomer
CN104341577A (en) Polyurethane microporous elastomer and preparation method thereof
CN111484728A (en) Sole material, preparation method thereof and shoe product
CN111906985B (en) Multi-stage foaming method
JPS59108041A (en) Preparation of polyurethane foam
CN110885416A (en) High-density block foam polyurethane material and preparation method thereof
JP2002137234A (en) Foam and method for manufacturing molding having foam layer, as well as apparatus for manufacturing the same
JP2990616B2 (en) Method for producing polyurethane foam molded article

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
WW01 Invention patent application withdrawn after publication

Application publication date: 20220927

WW01 Invention patent application withdrawn after publication