CN112300714A - Process for producing silicone gel and silicone gel film - Google Patents

Process for producing silicone gel and silicone gel film Download PDF

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Publication number
CN112300714A
CN112300714A CN202011234341.7A CN202011234341A CN112300714A CN 112300714 A CN112300714 A CN 112300714A CN 202011234341 A CN202011234341 A CN 202011234341A CN 112300714 A CN112300714 A CN 112300714A
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parts
mixed substance
silicone gel
silicone
minutes
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伍毓沌
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Guangdong Zhongsen Biotechnology Co ltd
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Guangdong Zhongsen Biotechnology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/10—Adhesives in the form of films or foils without carriers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J183/00—Adhesives based on 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; Adhesives based on derivatives of such polymers
    • C09J183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a process for manufacturing silica gel and a silica gel film, and particularly relates to the field of manufacturing of silica gel and a silica gel film, wherein the used main materials comprise the following raw materials in parts by weight: 100-120 parts of polymethylvinylsiloxane and platinum complex compound, 90-130 parts of organic silicon elastomer, 50-80 parts of methyltrichlorosilane, 30-50 parts of phenyltrichlorosilane, 40-60 parts of diphenyldichlorosilane, 10-20 parts of silicone oil and 30-50 parts of vinyl silicone resin. According to the invention, the mixture of the polymethylvinylsiloxane and the platinum complex and the organic silicon elastomer are fully mixed, so that the waterproofness of the silicone gel and the silicone gel film is improved, and the breathable layer is formed in the silicone gel film, so that the breathability is greatly improved, the silicone gel film is not easy to damage, the formula is simple, the production process is simple, the production cost is favorably reduced, and the market competitiveness is favorably realized.

Description

Process for producing silicone gel and silicone gel film
Technical Field
The invention relates to the technical field of manufacturing of silicone gel and silicone gel films, in particular to a manufacturing process of silicone gel and silicone gel films.
Background
The silica gel and the silica gel membrane are classified according to the pore size thereof: macroporous silica gel, B-type silica gel and fine-pore silica gel have different adsorption performances due to different pore structures. The coarse silica gel has higher adsorption capacity under the condition of high relative humidity, the fine silica gel has higher adsorption capacity than the coarse silica gel under the condition of low relative humidity, the B-type silica gel has a pore structure between the coarse silica gel and the fine silica gel, and the adsorption capacity of the B-type silica gel is also between the coarse silica gel and the fine silica gel, so that the silica gel and the silica gel film have good biocompatibility, and have no irritation, toxicity, anaphylactic reaction or organism rejection reaction on human tissues; the medical silica gel has good physicochemical properties, can keep the original elasticity and softness in the contact process with body fluid and tissues, is a stable inert substance, can resist high temperature, can be sterilized, is convenient to process and form, is easy to process and carve shapes, is convenient to use, and is mainly used as medical silica gel.
However, in practical use, the above technical solutions still have many disadvantages, such as poor waterproof effect and poor air permeability of common silicone gel and silicone gel films, difficulty in drying and water permeation during use, easy damage to silicone gel and silicone gel films, and short service life.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a silica gel and a process for manufacturing a silica gel film, wherein the mixture of polymethylvinylsiloxane and platinum complex and the organic silicon elastomer are fully mixed, so that the waterproofness of the silica gel and the silica gel film is improved, and a breathable layer is formed in the silica gel and the silica gel film, so that the breathability is greatly improved, the silica gel film is not easy to damage, the formula is simple, the production process is simple, the production cost is favorably reduced, and the market competitiveness is favorably realized.
In order to achieve the purpose, the invention provides the following technical scheme: the silicone gel and the silicone gel film comprise the following main materials in parts by weight: 100-120 parts of polymethyl vinyl siloxane and platinum complex compound, 90-130 parts of organic silicon elastomer, 50-80 parts of methyl trichlorosilane, 30-50 parts of phenyl trichlorosilane, 40-60 parts of diphenyl dichlorosilane, 10-20 parts of silicone oil, 30-50 parts of vinyl silicone resin, 50-70 parts of purified water, 5-10 parts of defoaming agent, 5-10 parts of Kaersite catalyst and 1-4 parts of n-butyl titanate.
In a preferred embodiment, the main materials used in the method comprise the following raw materials in parts by weight: 115 parts of polymethyl vinyl siloxane and platinum complex mixture 105-125 parts, 55-75 parts of methyl trichlorosilane, 35-45 parts of phenyl trichlorosilane, 45-55 parts of diphenyl dichlorosilane, 12-18 parts of silicone oil, 35-45 parts of vinyl silicone resin, 55-65 parts of purified water, 6-8 parts of defoaming agent, 6-8 parts of Kaersite catalyst and 2-3 parts of n-butyl titanate.
In a preferred embodiment, the main materials used in the method comprise the following raw materials in parts by weight: 115 parts of a mixture of polymethylvinylsiloxane and platinum complex, 100 parts of silicone elastomer, 60 parts of methyltrichlorosilane, 40 parts of phenyltrichlorosilane, 50 parts of diphenyldichlorosilane, 15 parts of silicone oil, 40 parts of vinyl silicone resin, 60 parts of purified water, 7 parts of defoaming agent, 7 parts of Kaersite catalyst and 2 parts of n-butyl titanate.
A process for manufacturing silicone gel and silicone gel film comprises the following steps:
the method comprises the following steps: adding the mixture of polymethylvinylsiloxane and platinum complex, organic silicon elastomer, methyltrichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane, silicone oil and vinyl silicone resin into a stirring kettle, stirring at the speed of 100-120 rpm for 10-15 minutes, setting the stirring temperature to be 60-80 ℃, standing for 10-15 minutes after the stirring is finished to obtain a mixed substance A:
s1: adding the mixed substance A into purified water, and stirring at the speed of 100-120 r/min for 5-10 minutes to obtain a mixed substance B.
Step two: and adding the defoaming agent, the Kaersite catalyst and the n-butyl titanate into the mixed substance A or the mixed substance B, stirring for 5-10 minutes at the speed of 30-60 revolutions/minute, setting the stirring temperature to be 40-60 ℃, uniformly stirring to obtain a mixed substance C or a mixed substance D, standing for 5-10 minutes, and taking out for later use.
Step three: the sealing device top cover is opened, cleaning equipment is used for cleaning along the inner wall of the sealing device, the inside of the sealing device is kept clean and tidy, then mixed material C or mixed material D is added into the sealing device, the top cover is covered again, then a vacuum pump is started, the input end of the vacuum pump starts to absorb the air inside the sealing device and is discharged from the output end, and air bubbles are completely removed after 5-10 minutes of absorption and then are taken out.
Step four: uniformly coating a release agent on the inner parts of the lower wall and the top wall of the upper film by using a roller, adding the mixed substance C or the mixed substance D treated in the step three into the inner parts of the lower wall and the top wall of the lower film, and performing calendaring molding on the mixture at the pressure of 25-40 Mpa.
Step five: putting the mixed substance C or the mixed substance D subjected to stretch-press molding in the fourth step into curing molding equipment, curing for 5-10 minutes at the temperature of 110-120 ℃, taking out after curing molding, placing the mixture in a cooling device for 5-10 minutes, taking out after cooling to the temperature of 36-40 ℃, and placing aside for later use.
Step six: and D, putting the mixed substance C or the mixed substance D cooled in the step five into cutting equipment, cutting according to the actual size and shape of a product, deburring the product along the periphery of the product by using a scraper after the cutting is finished, and finishing the silicon gel film made of the mixed substance C or the silicon gel made of the mixed substance D after the burrs are completely removed.
In a preferred embodiment, the silicone oil in the first step is prepared by adding water into dimethyldichlorosilane for fully dissolving, then adding a sealing agent and a catalyst for bunching, and filtering the obtained mixture.
In a preferred embodiment, the defoaming agent in the second step is prepared by addition polymerization of propylene oxide or a mixture of ethylene oxide and propylene oxide.
In a preferred embodiment, the pressure-holding time in the fourth step is controlled to be 5-10 minutes.
In a preferred embodiment, the number of burrs in the sixth step is 2 to 3.
The invention has the technical effects and advantages that:
1. according to the invention, the internal molecular structure of the silicone gel is changed by fully mixing the mixture of polymethylvinylsiloxane and platinum complex and the organic silicon elastomer, so that the internal molecular structure is more compact, the waterproofness of the silicone gel and the silicone gel membrane is improved, and the breathable layer is formed in the silicone gel, so that the breathability is greatly improved, the silicone gel is not easy to damage, the formula is simple, the production process is simple, the production cost is reduced, and the market competitiveness is facilitated;
2. according to the invention, the methyl trichlorosilane, the phenyl trichlorosilane, the diphenyl dichlorosilane, the silicone oil and the vinyl silicone resin are fully mixed to increase the tensile strength and the tensile rate of the silicone gel and the silicone gel film, so that the silicone gel and the silicone gel film are more wear-resistant and durable, have higher elongation rate, are easy to extrude and stretch, greatly improve the toughness and are difficult to damage.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides silica gel and a silica gel film, wherein the used main materials comprise the following raw materials in parts by weight: 100-120 parts of polymethyl vinyl siloxane and platinum complex compound, 90-130 parts of organic silicon elastomer, 50-80 parts of methyl trichlorosilane, 30-50 parts of phenyl trichlorosilane, 40-60 parts of diphenyl dichlorosilane, 10-20 parts of silicone oil, 30-50 parts of vinyl silicone resin, 50-70 parts of purified water, 5-10 parts of defoaming agent, 5-10 parts of Kaersite catalyst and 1-4 parts of n-butyl titanate.
Specifically, in this embodiment, the used main materials include the following raw materials in parts by weight: the used main materials comprise the following raw materials in parts by weight: 100 parts of mixture of polymethylvinylsiloxane and platinum complex, 90 parts of organic silicon elastomer, 55 parts of methyltrichlorosilane, 35 parts of phenyltrichlorosilane, 45 parts of diphenyldichlorosilane, 10 parts of silicone oil, 35 parts of vinyl silicone resin, 55 parts of purified water, 5 parts of defoaming agent, 5 parts of Kaersite catalyst and 1 part of n-butyl titanate.
A process for manufacturing silicone gel and silicone gel film comprises the following steps:
the method comprises the following steps: adding a mixture of polymethylvinylsiloxane and platinum complex, an organic silicon elastomer, methyltrichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane, silicone oil and vinyl silicone resin into a stirring kettle, stirring at the speed of 100 revolutions per minute for 10 minutes, setting the stirring temperature to be 60 ℃, standing for 10 minutes after the stirring is finished to obtain a mixed substance A:
s1: adding the mixed substance A into purified water, and stirring at the speed of 100 revolutions per minute for 5 minutes to obtain a mixed substance B.
Step two: and adding the defoaming agent, the Kaersite catalyst and the n-butyl titanate into the mixed substance A or the mixed substance B, stirring for 5 minutes at the speed of 30 revolutions per minute, setting the stirring temperature to be 40 ℃, uniformly stirring to obtain a mixed substance C or a mixed substance D, and standing for 5 minutes and taking out for later use.
Step three: open the sealing device top cap to clean along the sealing device inner wall with cleaning equipment, keep the inside clean and tidy of sealing device, then add mixture C or mixture D inside the sealing device, cover the top cap again, then start the vacuum pump, make the vacuum pump input begin to absorb the inside air of sealing device and discharge away from the output, take out after absorbing 5 minutes and get rid of the bubble completely again.
Step four: and (3) uniformly coating a release agent on the inner parts of the lower wall and the top wall of the upper film by using a roller, adding the mixed substance C or the mixed substance D treated in the step three into the inner parts of the lower wall and the top wall of the lower film, rolling the mixture for 5 minutes at the pressure of 25Mpa, and then forming.
Step five: and (3) putting the mixed substance C or the mixed substance D subjected to stretch-press molding in the fourth step into curing molding equipment, curing for 5 minutes at 110 ℃, taking out after curing molding, placing in a cooling device for 5 minutes, cooling to 36 ℃, taking out, and placing aside for later use.
Step six: and putting the mixed substance C or the mixed substance D cooled in the step five into cutting equipment, cutting according to the actual size and the shape of a product, deburring the product by using a scraper along the periphery of the product after the cutting is finished, wherein the deburring frequency is 2 times, and after the burrs are completely removed, the silicone gel film made of the mixed substance C or the silicone gel made of the mixed substance D can be finished.
Example 2:
the invention provides silica gel and a silica gel film, wherein the used main materials comprise the following raw materials in parts by weight: 100-120 parts of polymethyl vinyl siloxane and platinum complex compound, 90-130 parts of organic silicon elastomer, 50-80 parts of methyl trichlorosilane, 30-50 parts of phenyl trichlorosilane, 40-60 parts of diphenyl dichlorosilane, 10-20 parts of silicone oil, 30-50 parts of vinyl silicone resin, 50-70 parts of purified water, 5-10 parts of defoaming agent, 5-10 parts of Kaersite catalyst and 1-4 parts of n-butyl titanate.
Specifically, in this embodiment, the used main materials include the following raw materials in parts by weight: the used main materials comprise the following raw materials in parts by weight: 110 parts of mixture of polymethylvinylsiloxane and platinum complex, 100 parts of silicone elastomer, 60 parts of methyltrichlorosilane, 40 parts of phenyltrichlorosilane, 50 parts of diphenyldichlorosilane, 15 parts of silicone oil, 40 parts of vinyl silicone resin, 60 parts of purified water, 5 parts of defoaming agent, 5 parts of Kaersite catalyst and 1 part of n-butyl titanate.
A process for manufacturing silicone gel and silicone gel film comprises the following steps:
the method comprises the following steps: adding a mixture of polymethylvinylsiloxane and platinum complex, an organic silicon elastomer, methyltrichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane, silicone oil and vinyl silicone resin into a stirring kettle, stirring at the speed of 110 revolutions per minute for 10 minutes, setting the stirring temperature to be 60 ℃, standing for 10 minutes after the stirring is finished to obtain a mixed substance A:
s1: adding the mixed substance A into purified water, and stirring at the speed of 110 r/min for 5 minutes to obtain a mixed substance B.
Step two: and adding the defoaming agent, the Kaersite catalyst and the n-butyl titanate into the mixed substance A or the mixed substance B, stirring at 40 rpm for 10 minutes, setting the stirring temperature at 40 ℃, uniformly stirring to obtain a mixed substance C or a mixed substance D, and standing for 5 minutes and taking out for later use.
Step three: open the sealing device top cap to clean along the sealing device inner wall with cleaning equipment, keep the inside clean and tidy of sealing device, then add mixture C or mixture D inside the sealing device, cover the top cap again, then start the vacuum pump, make the vacuum pump input begin to absorb the inside air of sealing device and discharge away from the output, take out after absorbing 5 minutes and get rid of the bubble completely again.
Step four: and (3) uniformly coating a release agent on the inner parts of the lower wall and the top wall of the upper film by using a roller, adding the mixed substance C or the mixed substance D treated in the step three into the inner parts of the lower wall and the top wall of the lower film, rolling the mixture for 5 minutes at the pressure of 30Mpa, and then forming.
Step five: and (3) putting the mixed substance C or the mixed substance D subjected to stretch-press molding in the fourth step into curing molding equipment, curing for 5 minutes at 120 ℃, taking out after curing molding, placing in a cooling device for 5 minutes, cooling to 36 ℃, taking out, and placing aside for later use.
Step six: and putting the mixed substance C or the mixed substance D cooled in the step five into cutting equipment, cutting according to the actual size and the shape of a product, deburring the product by using a scraper along the periphery of the product after the cutting is finished, wherein the deburring frequency is 2 times, and after the burrs are completely removed, the silicone gel film made of the mixed substance C or the silicone gel made of the mixed substance D can be finished.
Example 3:
the invention provides silica gel and a silica gel film, wherein the used main materials comprise the following raw materials in parts by weight: 100-120 parts of polymethyl vinyl siloxane and platinum complex compound, 90-130 parts of organic silicon elastomer, 50-80 parts of methyl trichlorosilane, 30-50 parts of phenyl trichlorosilane, 40-60 parts of diphenyl dichlorosilane, 10-20 parts of silicone oil, 30-50 parts of vinyl silicone resin, 50-70 parts of purified water, 5-10 parts of defoaming agent, 5-10 parts of Kaersite catalyst and 1-4 parts of n-butyl titanate.
Specifically, in this embodiment, the used main materials include the following raw materials in parts by weight: the used main materials comprise the following raw materials in parts by weight: 115 parts of a mixture of polymethylvinylsiloxane and platinum complex, 120 parts of silicone elastomer, 70 parts of methyltrichlorosilane, 45 parts of phenyltrichlorosilane, 55 parts of diphenyldichlorosilane, 15 parts of silicone oil, 45 parts of vinyl silicone resin, 65 parts of purified water, 5 parts of defoaming agent, 5 parts of Kaersite catalyst and 1 part of n-butyl titanate.
A process for manufacturing silicone gel and silicone gel film comprises the following steps:
the method comprises the following steps: adding a mixture of polymethylvinylsiloxane and platinum complex, an organic silicon elastomer, methyltrichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane, silicone oil and vinyl silicone resin into a stirring kettle, stirring at the speed of 110 revolutions per minute for 10 minutes, setting the stirring temperature to be 60 ℃, standing for 10 minutes after the stirring is finished to obtain a mixed substance A:
s1: adding the mixed substance A into purified water, and stirring at the speed of 110 r/min for 10 minutes to obtain a mixed substance B.
Step two: and adding the defoaming agent, the Kaersite catalyst and the n-butyl titanate into the mixed substance A or the mixed substance B, stirring at 45 r/min for 10 min, setting the stirring temperature at 45 ℃, uniformly stirring to obtain a mixed substance C or a mixed substance D, and standing for 10 min and taking out for later use.
Step three: open the sealing device top cap to clean along the sealing device inner wall with cleaning equipment, keep the inside clean and tidy of sealing device, then add mixture C or mixture D inside the sealing device, cover the top cap again, then start the vacuum pump, make the vacuum pump input begin to absorb the inside air of sealing device and discharge away from the output, take out after absorbing 10 minutes and get rid of the bubble completely again.
Step four: and (3) uniformly coating a release agent on the inner parts of the lower wall and the top wall of the upper film by using a roller, adding the mixed substance C or the mixed substance D treated in the step three into the inner parts of the lower wall and the top wall of the lower film, rolling the mixture for 5 minutes at the pressure of 40Mpa, and then forming.
Step five: and (3) putting the mixed substance C or the mixed substance D subjected to stretch-press molding in the fourth step into curing molding equipment, curing for 5 minutes at 120 ℃, taking out after curing molding, placing in a cooling device for 5 minutes, cooling to 36 ℃, taking out, and placing aside for later use.
Step six: and putting the mixed substance C or the mixed substance D cooled in the step five into cutting equipment, cutting according to the actual size and the shape of a product, deburring the product by using a scraper along the periphery of the product after the cutting is finished, wherein the deburring frequency is 2 times, and after the burrs are completely removed, the silicone gel film made of the mixed substance C or the silicone gel made of the mixed substance D can be finished.
Example 4:
the invention provides silica gel and a silica gel film, wherein the used main materials comprise the following raw materials in parts by weight: 100-120 parts of polymethyl vinyl siloxane and platinum complex compound, 90-130 parts of organic silicon elastomer, 50-80 parts of methyl trichlorosilane, 30-50 parts of phenyl trichlorosilane, 40-60 parts of diphenyl dichlorosilane, 10-20 parts of silicone oil, 30-50 parts of vinyl silicone resin, 50-70 parts of purified water, 5-10 parts of defoaming agent, 5-10 parts of Kaersite catalyst and 1-4 parts of n-butyl titanate.
Specifically, in this embodiment, the used main materials include the following raw materials in parts by weight: the used main materials comprise the following raw materials in parts by weight: 120 parts of a mixture of polymethylvinylsiloxane and platinum complex, 130 parts of silicone elastomer, 80 parts of methyltrichlorosilane, 50 parts of phenyltrichlorosilane, 60 parts of diphenyldichlorosilane, 20 parts of silicone oil, 50 parts of vinyl silicone resin, 70 parts of purified water, 5 parts of defoaming agent, 5 parts of Kaersite catalyst and 1 part of n-butyl titanate.
A process for manufacturing silicone gel and silicone gel film comprises the following steps:
the method comprises the following steps: adding a mixture of polymethylvinylsiloxane and platinum complex, an organic silicon elastomer, methyltrichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane, silicone oil and vinyl silicone resin into a stirring kettle, stirring for 15 minutes at the speed of 120 revolutions per minute, setting the stirring temperature to be 60 ℃, standing for 10 minutes after the stirring is finished to obtain a mixed substance A:
s1: adding the mixed substance A into purified water, and stirring at the speed of 110 r/min for 10 minutes to obtain a mixed substance B.
Step two: and adding the defoaming agent, the Kaersite catalyst and the n-butyl titanate into the mixed substance A or the mixed substance B, stirring at 60 rpm for 10 minutes, setting the stirring temperature at 60 ℃, uniformly stirring to obtain a mixed substance C or a mixed substance D, and standing for 10 minutes and taking out for later use.
Step three: open the sealing device top cap to clean along the sealing device inner wall with cleaning equipment, keep the inside clean and tidy of sealing device, then add mixture C or mixture D inside the sealing device, cover the top cap again, then start the vacuum pump, make the vacuum pump input begin to absorb the inside air of sealing device and discharge away from the output, take out after absorbing 10 minutes and get rid of the bubble completely again.
Step four: and (3) uniformly coating a release agent on the inner parts of the lower wall and the top wall of the upper film by using a roller, adding the mixed substance C or the mixed substance D treated in the step three into the inner parts of the lower wall and the top wall of the lower film, rolling the mixture for 5 minutes at the pressure of 40Mpa, and then forming.
Step five: and (3) putting the mixed substance C or the mixed substance D subjected to stretch-press molding in the fourth step into curing molding equipment, curing for 5 minutes at 120 ℃, taking out after curing molding, placing in a cooling device for 5 minutes, cooling to 36 ℃, taking out, and placing aside for later use.
Step six: and putting the mixed substance C or the mixed substance D cooled in the step five into cutting equipment, cutting according to the actual size and the shape of a product, deburring the product by using a scraper along the periphery of the product after the cutting is finished, wherein the deburring frequency is 2 times, and after the burrs are completely removed, the silicone gel film made of the mixed substance C or the silicone gel made of the mixed substance D can be finished.
The four types of silica gel and silica gel films prepared in the above examples 1 to 4 were respectively subjected to performance tests, and the obtained parameters in the test process are as follows:
[0001] [0002]water proof rate [0003]Air permeability [0004]Tensile strength [0005]Elongation percentage
[0006]Example 1 [0007]55% [0008]45% [0009]15
Figure DEST_PATH_IMAGE002
 [0010]4.3%
[0011]Example 2 [0012]57% [0013]43% [0014]19
Figure DEST_PATH_IMAGE002A
 [0015]4.8%
[0016]Example 3 [0017]65% [0018]51% [0019]23
Figure DEST_PATH_IMAGE002AA
 [0020]4.5%
[0021]Example 4 [0022]68% [0023]56% [0024]25
Figure DEST_PATH_IMAGE002AAA
 [0025]5.2%
As can be seen from the above table, the raw materials proportion of cooperation is moderate in embodiment 4, wherein through adding polymethylvinylsiloxane and platinum complex mixture and organosilicon elastomer, carry out intensive mixing and change its internal molecular structure, make its internal molecular structure inseparabler, thereby improve silica gel and silica gel membrane waterproof nature, it is difficult for intaking more, avoid silica gel and silica gel membrane internal molecule to corrode, its inside ventilative layer gas permeability that forms simultaneously improves by a wide margin, it is more ventilative, it is better to be used for medical products effect, satisfy medical use demand by a wide margin, and tensile strength is high, thereby it is wear-resisting durable more, and the elongation is higher, easily extrude and stretch, its toughness is improved by a wide margin, it is wear-resisting durable more.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (8)

1. A silicone gel and a silicone gel film, characterized by: the used main materials comprise the following raw materials in parts by weight: 100-120 parts of polymethyl vinyl siloxane and platinum complex compound, 90-130 parts of organic silicon elastomer, 50-80 parts of methyl trichlorosilane, 30-50 parts of phenyl trichlorosilane, 40-60 parts of diphenyl dichlorosilane, 10-20 parts of silicone oil, 30-50 parts of vinyl silicone resin, 50-70 parts of purified water, 5-10 parts of defoaming agent, 5-10 parts of Kaersite catalyst and 1-4 parts of n-butyl titanate.
2. A silicone gel and silicone gel film according to claim 1, wherein: the used main materials comprise the following raw materials in parts by weight: 115 parts of polymethyl vinyl siloxane and platinum complex mixture 105-125 parts, 55-75 parts of methyl trichlorosilane, 35-45 parts of phenyl trichlorosilane, 45-55 parts of diphenyl dichlorosilane, 12-18 parts of silicone oil, 35-45 parts of vinyl silicone resin, 55-65 parts of purified water, 6-8 parts of defoaming agent, 6-8 parts of Kaersite catalyst and 2-3 parts of n-butyl titanate.
3. A silicone gel and silicone gel film according to claim 1, wherein: the used main materials comprise the following raw materials in parts by weight: 115 parts of a mixture of polymethylvinylsiloxane and platinum complex, 100 parts of silicone elastomer, 60 parts of methyltrichlorosilane, 40 parts of phenyltrichlorosilane, 50 parts of diphenyldichlorosilane, 15 parts of silicone oil, 40 parts of vinyl silicone resin, 60 parts of purified water, 7 parts of defoaming agent, 7 parts of Kaersite catalyst and 2 parts of n-butyl titanate.
4. A process for the production of silicone gel and silicone gel film according to any one of claims 1-3, wherein: the method comprises the following specific steps:
the method comprises the following steps: adding the mixture of polymethylvinylsiloxane and platinum complex, organic silicon elastomer, methyltrichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane, silicone oil and vinyl silicone resin into a stirring kettle, stirring at the speed of 100-120 rpm for 10-15 minutes, setting the stirring temperature to be 60-80 ℃, standing for 10-15 minutes after the stirring is finished to obtain a mixed substance A:
s1: adding the mixed substance A into purified water, and stirring at the speed of 100-120 r/min for 5-10 minutes to obtain a mixed substance B;
step two: adding a defoaming agent, a Kaersite catalyst and n-butyl titanate into the mixed substance A or the mixed substance B, stirring at the speed of 30-60 revolutions per minute for 5-10 minutes, setting the stirring temperature at 40-60 ℃, uniformly stirring to obtain a mixed substance C or a mixed substance D, standing for 5-10 minutes, and taking out for later use;
step three: opening a top cover of the sealing device, cleaning the sealing device along the inner wall of the sealing device by using cleaning equipment, keeping the inside of the sealing device clean and tidy, adding a mixed substance C or a mixed substance D into the sealing device, covering the top cover, starting a vacuum pump, enabling the input end of the vacuum pump to start to absorb the air in the sealing device and discharge the air from the output end, and completely removing bubbles after absorbing for 5-10 minutes and then taking out the air;
step four: uniformly coating a release agent inside the lower wall and the top wall of the upper film by using a roller, adding the mixed substance C or the mixed substance D treated in the step three into the lower wall and the top wall of the lower film, and performing calendering molding on the mixed substance C or the mixed substance D under the pressure of 25-40 Mpa;
step five: putting the mixed substance C or the mixed substance D subjected to stretch-press molding in the fourth step into curing molding equipment, curing for 5-10 minutes at the temperature of 110-120 ℃, taking out after curing molding, putting the mixture into a cooling device for 5-10 minutes, taking out after cooling to the temperature of 36-40 ℃, and putting aside for later use;
step six: and D, putting the mixed substance C or the mixed substance D cooled in the step five into cutting equipment, cutting according to the actual size and shape of a product, deburring the product along the periphery of the product by using a scraper after the cutting is finished, and finishing the silicon gel film made of the mixed substance C or the silicon gel made of the mixed substance D after the burrs are completely removed.
5. A process for the production of silicone gel and silicone gel film according to claim 4, wherein: and in the step one, the silicone oil is prepared by adding water into dimethyldichlorosilane for full dissolution, then adding a sealing agent and a catalyst for strip gathering to obtain a mixture and filtering the mixture.
6. A process for the production of silicone gel and silicone gel film according to claim 4, wherein: the defoaming agent in the second step is prepared by performing addition polymerization on propylene oxide or a mixture of ethylene oxide and propylene oxide.
7. A process for the production of silicone gel and silicone gel film according to claim 4, wherein: and the pressure delay time in the fourth step is controlled to be 5-10 minutes.
8. A process for the production of silicone gel and silicone gel film according to claim 4, wherein: and in the sixth step, the deburring times are 2-3.
CN202011234341.7A 2020-11-07 2020-11-07 Process for producing silicone gel and silicone gel film Pending CN112300714A (en)

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CN106361765A (en) * 2016-08-31 2017-02-01 广州润虹医药科技有限公司 Medical silica gel scar treatment strip with package and production technology thereof
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CN104098903A (en) * 2014-07-07 2014-10-15 北京三辰工业新材料有限公司 Organic silica gel provided with special refraction effect used for filling and preparation method of organic silica gel
CN106361765A (en) * 2016-08-31 2017-02-01 广州润虹医药科技有限公司 Medical silica gel scar treatment strip with package and production technology thereof
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