CN111716619A - Foaming mold processing method with high cleaning efficiency - Google Patents

Foaming mold processing method with high cleaning efficiency Download PDF

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Publication number
CN111716619A
CN111716619A CN202010492556.2A CN202010492556A CN111716619A CN 111716619 A CN111716619 A CN 111716619A CN 202010492556 A CN202010492556 A CN 202010492556A CN 111716619 A CN111716619 A CN 111716619A
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CN
China
Prior art keywords
parts
foaming
mold
cleaning efficiency
high cleaning
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
Application number
CN202010492556.2A
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Chinese (zh)
Inventor
丁勇军
蒋勇刚
顾海燕
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.)
Nantong Zhonghui Mould Co ltd
Original Assignee
Nantong Zhonghui Mould 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 Nantong Zhonghui Mould Co ltd filed Critical Nantong Zhonghui Mould Co ltd
Priority to CN202010492556.2A priority Critical patent/CN111716619A/en
Publication of CN111716619A publication Critical patent/CN111716619A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0288Controlling heating or curing of polymers during moulding, e.g. by measuring temperatures or properties of the polymer and regulating the process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0067Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/3442Mixing, kneading or conveying the foamable material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/36Feeding the material to be shaped
    • B29C44/38Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014Use of organic additives
    • C08J9/0028Use of organic additives containing nitrogen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066Use of inorganic compounding ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00Characterised by the use of unspecified polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2421/00Characterised by the use of unspecified rubbers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2483/00Characterised 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
    • C08J2483/04Polysiloxanes

Abstract

The invention discloses a processing method of a foaming mold with high cleaning efficiency, which comprises the following steps: firstly, preparing raw materials, wherein the foaming raw materials are prepared from the following components in parts by mass: 40-45 parts of resin, 20-30 parts of rubber, 8-12 parts of toluene diisocyanate, 2-4 parts of silica aerogel, 2-3 parts of foaming agent, 0.5-2 parts of catalyst, 1-1.5 parts of surfactant, 2-4 parts of foam stabilizer and 3-5 parts of graphene; according to the processing method of the foaming mold with high cleaning efficiency, the processing efficiency of the foaming mold is increased through the steps of preparing raw materials, foaming and stirring, brushing the oil layer and placing the film, injection molding, curing and the like, the brushing oil layer and placing the film are arranged at the same time, so that residues in the mold can be rapidly cleaned in the processing process of the foaming mold, the oil layer can effectively avoid the condition that a product is adhered to the mold, and the mold can be rapidly taken out without adhesion after the processing and molding due to the addition of the film.

Description

Foaming mold processing method with high cleaning efficiency
Technical Field
The invention belongs to the technical field of mold processing, and particularly relates to a processing method of a foaming mold with high cleaning efficiency.
Background
The foaming mold is plastic foaming mold, and is prepared through filling foaming resin into mold, heating to melt to form gas-liquid saturated solution, nucleating to form great amount of micro bubble nucleuses, growing the bubble nucleuses and making foamed plastic part;
and traditional foaming mould adds man-hour and can exist not enoughly, and traditional foaming mould adds man-hour because the high temperature can make the product bottom and the mould surface of foaming produce the adhesion for the outward appearance of product is not pleasing to the eye, brings inconvenience for the use, for this reason, we provide a foaming mould processing method of high cleaning efficiency.
Disclosure of Invention
The invention mainly aims to provide a foaming mold processing method with high cleaning efficiency, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a processing method of a foaming mold with high cleaning efficiency comprises the following steps:
preparing a raw material, wherein the foaming raw material is prepared from the following components in parts by mass: 40-45 parts of resin, 20-30 parts of rubber, 8-12 parts of toluene diisocyanate, 2-4 parts of silica aerogel, 2-3 parts of foaming agent, 0.5-2 parts of catalyst, 1-1.5 parts of surfactant, 2-4 parts of foam stabilizer and 3-5 parts of graphene to obtain prepared raw materials;
step two, foaming and stirring, namely sequentially putting a foaming agent, a catalyst, a surfactant and a foam stabilizer in the prepared raw materials into a foaming machine for stirring, then putting the resin, the rubber, the silica aerogel and the graphene into a stirrer for stirring to obtain a mixture, putting the mixture into the foaming machine, adding toluene diisocyanate for foaming, stirring and mixing, standing for reaction and foaming to obtain foamed foam;
brushing an oil layer and placing a film layer, brushing a layer of base oil in a foaming mould to be prepared, then paving a film layer on the upper part of the base oil, wherein two ends of the film layer are longer than the bottom of the mould and extend out of the mould, and then brushing oil on the upper end of the film layer again to prepare the foaming mould;
step four, injection molding, namely injecting the foamed foam obtained in the step two into a prepared foaming mold, covering the mold when the foam mold is filled to the top, and allowing the foam in the mold to be gelled or solidified under the action of a gelling agent to obtain a molded product;
and step five, curing, namely curing the obtained molded product, setting the temperature at 60-75 ℃ during curing, drying and curing for 10-15 hours, standing for 3-5 hours, taking the mold out of a curing chamber after curing, thus completing the processing method of the foaming mold with high cleaning efficiency and finally obtaining the product processed by the foaming mold.
Preferably, the foaming raw material in the step one is prepared from the following components in parts by mass: 40 parts of resin, 25 parts of rubber, 8 parts of toluene diisocyanate, 2 parts of silica aerogel, 3 parts of foaming agent, 0.5 part of catalyst, 1 part of surfactant, 2 parts of foam stabilizer and 3 parts of graphene.
Preferably, in the first step, the catalyst is one of N, N-dimethylcyclohexylamine or tetramethylalkylenediamine.
Preferably, in the first step, the surfactant is silicone oil.
Preferably, the heating temperature of the mold during the injection molding in the fourth step is controlled to be between 100-.
Preferably, in the fifth step, after the curing is finished, the product is required to be cleaned, and then is dried, wherein the drying temperature is 45-50 ℃.
Compared with the prior art, the invention has the following beneficial effects: this high cleaning efficiency's foaming mould processing method, through preparing raw and other materials, the foaming stirring, the layer of brushing oil and place the rete, injection moulding, step such as solidification, make the machining efficiency of foaming mould increase, the layer of brushing oil has been set up simultaneously and the rete is placed, make the foaming mould can be quick in the course of working wash the inside residue of mould, the layer of brushing oil can effectually avoid the condition of product and mould adhesion, and the interpolation of rete makes the mould can not have taking out of adhesion fast after the machine-shaping, shaping product outward appearance is pleasing to the eye flawless, and the operation is simple, and convenient use.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Examples
During processing, firstly, raw materials are prepared, and the foaming raw materials are prepared from the following components in parts by mass: 40 parts of resin, 25 parts of rubber, 8 parts of toluene diisocyanate, 2 parts of silica aerogel, 3 parts of a foaming agent, 0.5 part of a catalyst, 1 part of a surfactant, 2 parts of a foam stabilizer and 3 parts of graphene, wherein the catalyst is methyl alkylene diamine, and the surfactant is silicone oil, so as to obtain a prepared raw material; secondly, foaming and stirring, namely sequentially putting a foaming agent, a catalyst, a surfactant and a foam stabilizer in the prepared raw materials into a foaming machine for stirring, then putting the resin, the rubber, the silica aerogel and the graphene into a stirrer for stirring to obtain a mixture, putting the mixture into the foaming machine, adding toluene diisocyanate for foaming, stirring and mixing, standing for reaction and foaming to obtain foamed foam; brushing an oil layer and placing a film layer, brushing a layer of base oil in a foaming mould to be prepared, then paving a film layer on the upper part of the base oil, wherein two ends of the film layer are longer than the bottom of the mould and extend out of the mould, and then brushing oil on the upper end of the film layer again to prepare the foaming mould; then injection molding is carried out, the prepared foaming mold is filled with the foamed foam obtained in the step two, when the foam mold is filled to the top, the mold is covered, the foam in the mold is gelled or solidified under the action of a gelling agent, the heating temperature of the mold is controlled to be 120 ℃ during injection molding, the heating time is controlled to be 500s, and the foaming molding time is controlled to be 600s, so that a molded product is obtained; and finally, curing, namely curing the obtained molded product, setting the temperature at 65 ℃ for drying and curing for 11 hours during curing, standing for 4 hours, taking the mold out of a curing chamber after curing, cleaning the product after curing, and performing drying treatment after cleaning, wherein the drying temperature is 45 ℃, so that the high-cleaning-efficiency foaming mold processing method can be completed.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A processing method of a foaming mold with high cleaning efficiency is characterized by comprising the following steps:
preparing a raw material, wherein the foaming raw material is prepared from the following components in parts by mass: 40-45 parts of resin, 20-30 parts of rubber, 8-12 parts of toluene diisocyanate, 2-4 parts of silica aerogel, 2-3 parts of foaming agent, 0.5-2 parts of catalyst, 1-1.5 parts of surfactant, 2-4 parts of foam stabilizer and 3-5 parts of graphene to obtain prepared raw materials;
step two, foaming and stirring, namely sequentially putting a foaming agent, a catalyst, a surfactant and a foam stabilizer in the prepared raw materials into a foaming machine for stirring, then putting the resin, the rubber, the silica aerogel and the graphene into a stirrer for stirring to obtain a mixture, putting the mixture into the foaming machine, adding toluene diisocyanate for foaming, stirring and mixing, standing for reaction and foaming to obtain foamed foam;
brushing an oil layer and placing a film layer, brushing a layer of base oil in a foaming mould to be prepared, then paving a film layer on the upper part of the base oil, wherein two ends of the film layer are longer than the bottom of the mould and extend out of the mould, and then brushing oil on the upper end of the film layer again to prepare the foaming mould;
step four, injection molding, namely injecting the foamed foam obtained in the step two into a prepared foaming mold, covering the mold when the foam mold is filled to the top, and allowing the foam in the mold to be gelled or solidified under the action of a gelling agent to obtain a molded product;
and step five, curing, namely curing the obtained molded product, setting the temperature at 60-75 ℃ during curing, drying and curing for 10-15 hours, standing for 3-5 hours, taking the mold out of a curing chamber after curing, thus completing the processing method of the foaming mold with high cleaning efficiency and finally obtaining the product processed by the foaming mold.
2. The method for processing the foaming mold with high cleaning efficiency as claimed in claim 1, wherein the method comprises the following steps: in the first step, the foaming raw material is prepared from the following components in parts by mass: 40 parts of resin, 25 parts of rubber, 8 parts of toluene diisocyanate, 2 parts of silica aerogel, 3 parts of foaming agent, 0.5 part of catalyst, 1 part of surfactant, 2 parts of foam stabilizer and 3 parts of graphene.
3. The method for processing the foaming mold with high cleaning efficiency as claimed in claim 1, wherein the method comprises the following steps: in the first step, the catalyst is one of N, N-dimethylcyclohexylamine or tetramethyl alkylene diamine.
4. The method for processing the foaming mold with high cleaning efficiency as claimed in claim 1, wherein the method comprises the following steps: in the first step, the surfactant is silicone oil.
5. The method for processing the foaming mold with high cleaning efficiency as claimed in claim 1, wherein the method comprises the following steps: in the fourth step, the heating temperature of the mold is controlled between 100-.
6. The preparation process of the processing method of the foaming mold with high cleaning efficiency according to claim 1, which is characterized in that: step five, after the solidification is finished, cleaning the product, and drying the product after cleaning, wherein the drying temperature is 45-50 ℃.
CN202010492556.2A 2020-06-03 2020-06-03 Foaming mold processing method with high cleaning efficiency Pending CN111716619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010492556.2A CN111716619A (en) 2020-06-03 2020-06-03 Foaming mold processing method with high cleaning efficiency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112606420A (en) * 2020-11-27 2021-04-06 合肥艺光高分子材料科技有限公司 Production method of solid silica gel foam

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CN112606420A (en) * 2020-11-27 2021-04-06 合肥艺光高分子材料科技有限公司 Production method of solid silica gel foam

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