CN109777117A - A kind of add-on type silica gel for turning over fine decorative pattern mold processed, preparation method and applications - Google Patents
A kind of add-on type silica gel for turning over fine decorative pattern mold processed, preparation method and applications Download PDFInfo
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- CN109777117A CN109777117A CN201811550980.7A CN201811550980A CN109777117A CN 109777117 A CN109777117 A CN 109777117A CN 201811550980 A CN201811550980 A CN 201811550980A CN 109777117 A CN109777117 A CN 109777117A
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Abstract
The add-on type silica gel that the present invention relates to a kind of for turning over fine decorative pattern mold processed, preparation method and application, solve because epoxy resin and dual composition addition type silica gel wetability are bad, the problem for causing epoxy mold decorative pattern emulation rate low.Add-on type silica gel is grouped as by the group of following parts by weight: 50~70 parts of vinyl silicone oil, 25~35 parts of containing hydrogen silicone oil, 20~40 parts of Vinyl MQ silicon resin, 10~12 parts of gas-phase silica, 1~2 part of platinum catalyst, 0.1~3 part of high molecular surfactant of 0.1~1.0 part of inhibitor and polyethers.Preparation method is to mix the high molecular surfactant of vinyl silicone oil, containing hydrogen silicone oil and polyethers to be used as component A, vinyl silicone oil, platinum catalyst, the high molecular surfactant of polyethers and inhibitor are mixed and are used as B component, Vinyl MQ silicon resin, gas-phase silica are mixed into A respectively again, B component stirs, vacuumizing and defoaming.Add-on type silica gel of the invention and epoxy resin mould wellability are good, can accurate copy mold decorative pattern, method is simple, at low cost.
Description
Technical field
The invention belongs to the technical fields of add-on type silica gel preparation, and in particular to a kind of for turning over fine decorative pattern mold processed
Add-on type silica gel, preparation method and applications.
Background technique
Fascia slush mold is usually to be used to produce the soft skin product of fascia.The system of slush mold
It is needed by poured with epoxy resin in the textured silica gel former in surface during standby, its purpose is to by silica gel female mold surfaces
Texture carry out accurate duplication transfer.In the manufacturing process of epoxy mold, due to polar epoxy resin and production silica gel
The nonpolar dual composition addition type silica gel wetability of former is bad, and it is micro- that polar epoxy resin can not fully flow into silica gel cavity block
In the groove of meter level, cause epoxy mold decorative pattern emulation rate low.
From the point of view of the manufacturing process of slush mold, for the add-on type silica gel of silica gel former and the wellability pair of epoxy resin
The accurate duplication of floral designs has profound impact.So developing a kind of and good dual composition addition type of epoxy resin wellability
Mold silica gel is of great practical significance.
Summary of the invention
The purpose of the present invention is to solve in the manufacturing process of epoxy mold, due to epoxy resin and silica gel yin is made
The dual composition addition type silica gel wetability of mould is bad, and epoxy resin can not fully flow into the micron-sized groove of silica gel cavity block, leads
The problem for causing epoxy mold decorative pattern emulation rate low, provides a kind of for turning over the add-on type silica gel of fine decorative pattern mold processed.The present invention
Another object be to provide it is above-mentioned for turning over the preparation method of the add-on type silica gel of fine decorative pattern mold processed.There are also one by the present invention
A purpose is to provide above-mentioned application of the add-on type silica gel in silica gel mould production for turning over fine decorative pattern mold processed.
The purpose of the present invention is what is be achieved through the following technical solutions:
It is a kind of for turning over the add-on type silica gel of fine decorative pattern mold processed, which is characterized in that by following parts by weight group be grouped
At:
50~70 parts of vinyl silicone oil, 25~35 parts of containing hydrogen silicone oil, 20~40 parts of Vinyl MQ silicon resin, gas-phase silica
10~14 parts, 1~2 part of platinum catalyst, the high molecular surfactant 0.1~3 of 0.1~1.0 part of inhibitor and polyethers
Part；
The vinyl silicone oil is end-vinyl dimethyl silicone polymer, and range of viscosities is 1000~30000mPa.s；
The containing hydrogen silicone oil is the containing hydrogen silicone oil of reactive hydrogen there are three per molecule at least contains, hydrogen content 9%；
The platinum catalyst is the complex compound of platinum and divinyl dimethyl siloxane, and wherein platinum content is 20wt%；
The inhibitor is 3- methyl-1-butine-3- alcohol；
The high molecular surfactant of the polyethers is methyl blocking polyether modified silicon oil.
The preparation method of the above-mentioned add-on type silica gel for being used to turn over fine decorative pattern mold processed, comprising the following steps:
The high molecular surfactant of vinyl silicone oil, containing hydrogen silicone oil and polyethers is uniformly mixed by above-mentioned parts by weight
Afterwards, as component A；Vinyl silicone oil, platinum catalyst, the high molecular surfactant of polyethers and inhibitor mixed is equal
After even, as B component；Then, Vinyl MQ silicon resin, gas-phase silica are mixed into A, in B component respectively, temperature be 20~
30 DEG C, under conditions of mixing speed is 2000r/min, stirs 10min, pour into mold cured 3h after vacuumizing and defoaming.
Wherein, component A medium vinyl silicone oil parts by weight and the ratio of component B medium vinyl silicone oil are 1:1；Gather in component A
The ratio of the high molecular surfactant of polyethers is 2:1 in the high molecular surfactant parts by weight and component B of ethers.
Above-mentioned application of the add-on type silica gel in the production of epoxy mold for turning over fine decorative pattern mold processed, the application
Method is cast in the model with textured pattern the following steps are included: the add-on type silica gel is vacuumized after mixing evenly
Surface obtains the silica gel mould that texture is printed on to surface after solidifying demoulding, then by the poured with epoxy resin of good fluidity in silica gel
Die surface demoulds after epoxy resin cure.
Further, the whipping temp of the add-on type silica gel is 20~30 DEG C, and mixing time is no more than 10 minutes.
Further, the vaporization temperature of the add-on type silica gel is 20~30 DEG C, and pressure is -0.1MPa, is vacuumized
Time is no more than 5 minutes.
Further, the solidification temperature of the add-on type silica gel is 20~30 DEG C, and curing time is 3 hours.
Compared with prior art, the beneficial effects of the present invention are:
It is provided by the invention that there is add-on type silica gel for turning over fine decorative pattern mold processed, using add-on type silica gel,
Small molecule by-product is not generated, linear shrinkage is small, good stability of the dimension, is particularly suited for accurate mould than condensed type silica gel
Preparation.The high molecular surfactant of the polyethers used is methyl blocking polyether modified silicon oil.Common polyether class surface-active
Although the polarity of substance can be improved in agent, but bad with the intermiscibility of two component of silica gel, and certain polyethers surface-actives
Agent contains hydroxyl or amino, and hydroxyl can be reacted with the si-h bond in silica gel, and amino can then make the platinum catalysis in add-on type silica gel
Agent failure, influences the vulcanization of silica gel.The methyl blocking polyether modified silicon oil that the present invention uses improves silicon due to being methyl blocking
It while glue polarity, also avoids reacting with the component in silica gel, and in methyl blocking polyether modified silicon oil and silica gel
Compatibility is good, can effectively improve the wellability of silica gel and epoxy resin.
Detailed description of the invention
Fig. 1 is the surface detail depth results comparison of embodiment 1, embodiment 2 and comparative example 1,2 epoxy resin of comparative example
Figure；
Fig. 2 is that epoxy resin section pattern depth measures exemplary diagram.
Specific embodiment
The present invention is further detailed below in conjunction with embodiment.Agents useful for same is commercially available production in embodiment
Product, wherein platinum catalyst is purchased from Beijing An Tepuna scientific & trading Co., Ltd., is the complexing of platinum and divinyl dimethyl siloxane
Object, wherein platinum content is 20wt%.The high molecular surfactant of polyethers is purchased from the limited public affairs of Jining City Bei Nuoke biotechnology
Department is methyl blocking polyether modified silicon oil DY-ET211.Epoxy resin is purchased from Guangzhou Mei Rui special construction material Co., Ltd, type
Number be MR825/MH862.
Embodiment 1
Component A prepares: 25 parts of vinyl silicone oil, the high molecular surfactant 0.2 of 25 parts of containing hydrogen silicone oil and polyethers
Part；
B component prepares: 25 parts of vinyl silicone oil, 1 part of platinum catalyst, and the macromolecule of 0.3 part of inhibitor and polyethers
0.1 part of surfactant；
At 20~30 DEG C, 10 parts of Vinyl MQ silicon resin and 5 parts of gas-phase silica are mixed into A, B component, so
Afterwards after mixing according to the ratio of quality 1:1, vacuumizing and defoaming 5 minutes after the completion of operation, solidifies 3 hours at 20~30 DEG C,
After silica gel is fully cured, the casting epoxy resin into silica gel former, after epoxy resin is fully cured, demoulding measures asphalt mixtures modified by epoxy resin
The depth of rouge surface detail.
Embodiment 2
Component A prepares: 30 parts of vinyl silicone oil, 1 part of high molecular surfactant of 30 parts of containing hydrogen silicone oil and polyethers；
B component prepares: 30 parts of vinyl silicone oil, 1.5 parts of platinum catalyst, and the high score of 0.6 part of inhibitor and polyethers
0.5 part of sub- surfactant；
At 20~30 DEG C, 15 parts of Vinyl MQ silicon resin and 6 parts of gas-phase silica are mixed into A, B component, then
According to quality 1:1 ratio after mixing, vacuumizing and defoaming 5 minutes, after the completion of operation, solidify 3 hours at 20~30 DEG C, silicon
After glue is fully cured, the casting epoxy resin into silica gel former, after epoxy resin is fully cured, demoulding measures epoxy resin
The depth of surface detail.
Embodiment 3
Component A prepares: 35 parts of vinyl silicone oil, 2 parts of high molecular surfactant of 30 parts of containing hydrogen silicone oil and polyethers；
B component prepares: 35 parts of vinyl silicone oil, 1.5 parts of platinum catalyst, and the high score of 0.6 part of inhibitor and polyethers
1 part of sub- surfactant；
At 20~30 DEG C, 20 parts of Vinyl MQ silicon resin and 7 parts of gas-phase silica are mixed into A, B component, so
Afterwards after mixing according to the ratio of quality 1:1, vacuumizing and defoaming 5 minutes after the completion of operation, solidifies 3 hours at 20~30 DEG C,
After silica gel is fully cured, the casting epoxy resin into silica gel former, after epoxy resin is fully cured, demoulding measures asphalt mixtures modified by epoxy resin
The depth of rouge surface detail.
Comparative example 1
Component A prepares: 25 parts of vinyl silicone oil, 25 parts of containing hydrogen silicone oil；
B component prepares: 25 parts of vinyl silicone oil, 1 part of platinum catalyst, 0.3 part of inhibitor；
At 20~30 DEG C, 10 parts of Vinyl MQ silicon resin and 5 parts of gas-phase silica are mixed into A, B component, so
Afterwards after mixing according to the ratio of quality 1:1, vacuumizing and defoaming 5 minutes after the completion of operation, solidifies 3 hours at 20~30 DEG C,
After silica gel is fully cured, the casting epoxy resin into silica gel former, after epoxy resin is fully cured, demoulding measures asphalt mixtures modified by epoxy resin
The depth of rouge surface detail.
Comparative example 2
Component A prepares: 35 parts of vinyl silicone oil, 30 parts of containing hydrogen silicone oil；
B component prepares: 35 parts of vinyl silicone oil, 1.5 parts of platinum catalyst, 0.6 part of inhibitor；
At 20~30 DEG C, 20 parts of Vinyl MQ silicon resin and 7 parts of gas-phase silica are mixed into A, B component, so
Afterwards after mixing according to the ratio of quality 1:1, vacuumizing and defoaming 5 minutes after the completion of operation, solidifies 3 hours at 20~30 DEG C,
After silica gel is fully cured, the casting epoxy resin into silica gel former, after epoxy resin is fully cured, demoulding measures asphalt mixtures modified by epoxy resin
The depth of rouge surface detail.
The surface detail depth for the epoxy resin that Examples 1 to 3 and comparative example 1~2 obtain is compared, as a result as schemed
Shown in 1.
Wherein, pattern depth measurement is carried out to 50 groups of epoxy resin sections, as a result as shown in Figure 2.It can be seen from the figure that
The decorative pattern quantity of 100 μm or more depth of Examples 1 to 3 is apparently higher than comparative example 1~2, and 80 μm of decorative patterns below are relatively
It is few, illustrate that Examples 1 to 3 is preferable to the wellability of epoxy resin.In addition, in Examples 1 to 3, prepared by Examples 1 to 2
Silica gel there is no the effect of embodiment 3 good the wellability of epoxy resin.
It is above that certain exemplary embodiments of the invention are only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain without departing from the spirit and scope of the present invention can be with a variety of different modes to institute
The embodiment of description is modified.Therefore, above-described embodiment and description are regarded as illustrative in nature, and should not be construed as to this hair
The limitation of bright claims.
Claims (6)
1. a kind of for turning over the add-on type silica gel of fine decorative pattern mold processed, which is characterized in that be grouped as by the group of following parts by weight:
50~70 parts of vinyl silicone oil, 25~35 parts of containing hydrogen silicone oil, 20~40 parts of Vinyl MQ silicon resin, gas-phase silica 10~
14 parts, 1~2 part of platinum catalyst, 0.3~3 part of high molecular surfactant of 0.1~1.0 part of inhibitor and polyethers；
The vinyl silicone oil is end-vinyl dimethyl silicone polymer, and range of viscosities is 1000~30000mPa.s；
The containing hydrogen silicone oil is the containing hydrogen silicone oil of reactive hydrogen there are three per molecule at least contains, hydrogen content 9%；
The platinum catalyst is the complex compound of platinum and divinyl dimethyl siloxane, and wherein platinum content is 20wt%；
The inhibitor is 3- methyl-1-butine-3- alcohol；
The high molecular surfactant of the polyethers is methyl blocking polyether modified silicon oil.
2. it is according to claim 1 a kind of for turning over the preparation method of the add-on type silica gel of fine decorative pattern mold processed, it is special
Sign is, comprising the following steps: by above-mentioned parts by weight that the macromolecule surface of vinyl silicone oil, containing hydrogen silicone oil and polyethers is living
Property agent after mixing, as component A；By vinyl silicone oil, platinum catalyst, polyethers high molecular surfactant and
After inhibitor mixed is uniform, as B component；Then, Vinyl MQ silicon resin, gas-phase silica are mixed into A, in B component respectively,
Under conditions of temperature is 20~30 DEG C, mixing speed is 2000r/min, 10min is stirred, it is solid that mold is poured into after vacuumizing and defoaming
Change 3h；
Wherein, component A medium vinyl silicone oil parts by weight and the ratio of component B medium vinyl silicone oil are 1:1；Polyethers in component A
High molecular surfactant parts by weight and component B in polyethers high molecular surfactant ratio be 2:1.
3. according to claim 1 a kind of for turning over production of the add-on type silica gel in epoxy mold of fine decorative pattern mold processed
In application, which is characterized in that application method is the following steps are included: by the add-on type for being used to turn over fine decorative pattern mold processed
Silica gel vacuumizes after mixing evenly, is cast in the model surface with textured pattern, obtains after solidification demoulding to surface and be printed on texture
Silica gel mould, then the poured with epoxy resin of good fluidity is demoulded after epoxy resin cure on silica gel mould surface.
4. according to claim 3 a kind of for turning over production of the add-on type silica gel in epoxy mold of fine decorative pattern mold processed
In application, it is characterised in that: the whipping temp of the add-on type silica gel be 20~30 DEG C, mixing time be no more than 10 points
Clock.
5. according to claim 3 a kind of for turning over production of the add-on type silica gel in epoxy mold of fine decorative pattern mold processed
In application, it is characterised in that: the vaporization temperature of the add-on type silica gel is 20~30 DEG C, and pressure is -0.1MPa, is taken out true
The empty time is no more than 5 minutes.
6. according to claim 3 a kind of for turning over production of the add-on type silica gel in epoxy mold of fine decorative pattern mold processed
In application, it is characterised in that: the solidification temperature of the add-on type silica gel be 20~30 DEG C, curing time be 3 hours.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110128835A (en) * | 2019-06-04 | 2019-08-16 | 吉林大学 | It is a kind of can directly electro-deposition Conductive silicon rubber material |
| CN111825987A (en) * | 2020-06-23 | 2020-10-27 | 凤阳加松新型材料科技有限公司 | High-elasticity mirror silica gel pad and preparation method thereof |
| CN113248933A (en) * | 2021-06-15 | 2021-08-13 | 吉林大学 | Method for tracking texture copy effect |
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| CN108424652A (en) * | 2018-04-16 | 2018-08-21 | 吉林大学 | A kind of add-on type silica gel and the preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110128835A (en) * | 2019-06-04 | 2019-08-16 | 吉林大学 | It is a kind of can directly electro-deposition Conductive silicon rubber material |
| CN111825987A (en) * | 2020-06-23 | 2020-10-27 | 凤阳加松新型材料科技有限公司 | High-elasticity mirror silica gel pad and preparation method thereof |
| CN113248933A (en) * | 2021-06-15 | 2021-08-13 | 吉林大学 | Method for tracking texture copy effect |
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Application publication date: 20190521 |