CN110466813A - A kind of packaging process of One component Sealant - Google Patents
A kind of packaging process of One component Sealant Download PDFInfo
- Publication number
- CN110466813A CN110466813A CN201910773146.2A CN201910773146A CN110466813A CN 110466813 A CN110466813 A CN 110466813A CN 201910773146 A CN201910773146 A CN 201910773146A CN 110466813 A CN110466813 A CN 110466813A
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- China
- Prior art keywords
- sealant
- component sealant
- component
- filled
- packaging process
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The present invention provides a kind of packaging process of One component Sealant, comprising the following steps: after a) sealing One component Sealant to be filled, vacuumizes, then passing to nitrogen balances One component Sealant and ambient pressure to be filled;B) keep One component Sealant to be filled and ambient pressure to balance, carry out platen pushing, obtained after discharging it is filling after One component Sealant.Compared with prior art, packaging process provided by the invention uses specific process step, realizes nitrogen protection, and under given conditions stablizes entire pouring process, while avoiding air that from entering colloid, guarantees that the quality of One component Sealant is unaffected.The experimental results showed that packaging process provided by the invention obtain it is filling after One component Sealant filling effect it is good, no gel.
Description
Technical field
The present invention relates to sealant production technical fields, are be related to a kind of One component Sealant filling more specifically
Method.
Background technique
Sealant is the material for filling gap (hole, connector, seam etc.), has both two big functions of bonding and sealing.
Polyurethane sealant and silicone sealant, polysulfide sealant constitute three big kinds of high-grade sealant at present, are widely used in and build
It builds, communications and transportation, the sealing of electronic instrument and components.
Filling is one of important link in sealant production, and the filling of One component Sealant is primarily referred to as having for one-component
Machine silicone sealant it is filling and one-component polyurethane sealant filling.Currently, the packaging process of conventional One component Sealant
It is that platen is directly filling.
But with filling progress, platen is pushed, and platen and glue plane form cavity, and had in cavity air into
Enter, partial air can enter colloid, since single-component organic silicon sealant and one-component polyurethane sealant belong to moisture and consolidate
Change mechanism, the steam in air can carry out cross-linking reaction with glue, gel or skinning be formed, so that there is the colloid of air access portion
Gel or skinning influence the quality of glue.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of packaging process of One component Sealant, it is provided by the invention
Packaging process, which can be avoided air, can enter colloid, guarantee that the quality of One component Sealant is unaffected.
The present invention provides a kind of packaging process of One component Sealant, comprising the following steps:
A) it after sealing One component Sealant to be filled, vacuumizes, then passing to nitrogen keeps one-component to be filled close
Sealing and ambient pressure balance;
B) it keeps One component Sealant and ambient pressure to be filled to balance, carries out platen pushing, obtained after discharging filling
One component Sealant afterwards.
Preferably, One component Sealant to be filled described in step a) be selected from single-component organic silicon sealant filling or
One-component polyurethane sealant.
Preferably, the temperature of One component Sealant to be filled described in step a) is 45 DEG C~65 DEG C.
Preferably, the process of sealing described in step a) specifically:
One component Sealant to be filled is pushed into press, vacuum (-tight) housing is set at the top of the press and is sealed.
Preferably, the vacuum (-tight) housing is equipped with vacuum pumping valve and nitrogen valve.
Preferably, the vacuum degree vacuumized described in step a) is -0.1MPa~-0.06MPa.
Preferably, platen described in step b) push pressure be 10MPa~25MPa, pushings speed for 5cm/s~
15cm/s, temperature are 20 DEG C~30 DEG C.
The present invention provides a kind of packaging process of One component Sealant, comprising the following steps: a) by single group to be filled
It after part sealant sealing, vacuumizes, then passing to nitrogen balances One component Sealant and ambient pressure to be filled;B) it keeps
One component Sealant to be filled and ambient pressure balance, and carry out platen pushing, obtained after discharging it is filling after one-component sealing
Glue.Compared with prior art, packaging process provided by the invention uses specific process step, realizes nitrogen protection, and specific
Under the conditions of stablize entire pouring process, while avoiding air that from entering colloid, guarantee the quality of One component Sealant not
It is impacted.The experimental results showed that packaging process provided by the invention obtain it is filling after One component Sealant filling effect it is good,
Without gel.
Meanwhile packaging process provided by the invention is simple, improves small, easy implementation to existing equipment, is suitble to large-scale industry
Production, has broad application prospects.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram for the packaging process that the embodiment of the present invention 1 provides;
Fig. 2 be the packaging process that provides of the embodiment of the present invention 1 obtain it is filling after One component Sealant effect in kind
Figure;
Fig. 3 be the packaging process that provides of comparative example 1 obtain it is filling after One component Sealant pictorial diagram.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
The present invention provides a kind of packaging process of One component Sealant, comprising the following steps:
A) it after sealing One component Sealant to be filled, vacuumizes, then passing to nitrogen keeps one-component to be filled close
Sealing and ambient pressure balance;
B) it keeps One component Sealant and ambient pressure to be filled to balance, carries out platen pushing, obtained after discharging filling
One component Sealant afterwards.
After the present invention first seals One component Sealant to be filled, vacuumize, then pass to nitrogen make it is to be filled
One component Sealant and ambient pressure balance.In the present invention, the One component Sealant to be filled is preferably selected from one-component
The filling or one-component polyurethane sealant of organosilicon sealant, more preferably single-component organic silicon sealant.It is excellent in the present invention
In the embodiment of choosing, the One component Sealant is single-component organic silicon sealant, including following components:
Hydroxyl endblocked polydimethylsiloxane 30wt%~50wt%;
Dimethicone 5wt%~15wt%;
Nanometer calcium carbonate 40wt%~55wt%;
Fumed silica 2wt%~10wt%;
Crosslinking agent (methyltrimethoxysilane) 3wt%~6wt%;
Coupling agent (KH-560, γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane) 0.3wt%~1.2wt%;
Catalyst (butyl titanate) 1.0wt%~3.0wt%.
In the present invention, the temperature of the One component Sealant to be filled be preferably 45 DEG C~65 DEG C, more preferably 50
DEG C~60 DEG C.In the present invention, it is medium to be preferably placed on finished product kettle by the discharging of planet machine for the One component Sealant to be filled
It is to be filled;The One component Sealant to be filled, which touches air, can generate skinning gel, at the temperature disclosed above surface drying time
Usually 5 minutes or so, and in the discharging to pail pack of planet machine scuffing of cylinder bore, substantially need 1.5h~2h, conventional pouring process, cylinder
The colloid of wall surrounding, which pushes process, can generate gel because touching air.
In the present invention, the process of the sealing is preferred specifically:
One component Sealant to be filled is pushed into press, vacuum (-tight) housing is set at the top of the press and is sealed.
The present invention is not particularly limited the press, is using the press well known to those skilled in the art with platen
It can.In the present invention, the vacuum (-tight) housing is preferably provided with vacuum pumping valve and nitrogen valve;Wherein, the vacuum pumping valve is true for taking out
It is empty;The nitrogen valve is for inputting nitrogen.
In the present invention, the vacuum degree vacuumized is preferably -0.1MPa~-0.06MPa, more preferably -
0.08MPa.The present invention stops vacuumizing after vacuum degree reaches above-mentioned parameter, opens the emptying of nitrogen valve inflated with nitrogen.
In the present invention, the design parameter for being passed through nitrogen is to keep One component Sealant and ambient pressure to be filled flat
Weighing apparatus;On this basis, it keeps One component Sealant and ambient pressure to be filled to balance, carries out platen pushing, obtained after discharging
One component Sealant after filling.
In the present invention, the pressure that the platen pushes is preferably 10MPa~25MPa, more preferably 15MPa~20MPa;
The pushing speed that the platen pushes is preferably 5cm/s~15cm/s, more preferably 10cm/s;The temperature that the platen pushes is excellent
It is selected as 20 DEG C~30 DEG C.
Discharging process keeps space in kettle to be constantly in the nitrogen state of 1 atmospheric pressure, completes pouring process, is filled
One component Sealant after dress.
Packaging process provided by the invention use specific process step, realize nitrogen (there is nitrogen to enter colloid, will not be to glue
The form of quality influences) protection, and under given conditions stablize entire pouring process, avoiding air that from entering the same of colloid
When, guarantee that the quality of One component Sealant is unaffected.The experimental results showed that packaging process provided by the invention obtain it is filling
One component Sealant filling effect afterwards is good, no gel.Meanwhile packaging process provided by the invention is simple, changes to existing equipment
Into small, easy implementation, it is suitble to large-scale industrial production, has broad application prospects.
The present invention provides a kind of packaging process of One component Sealant, comprising the following steps: a) by single group to be filled
It after part sealant sealing, vacuumizes, then passing to nitrogen balances One component Sealant and ambient pressure to be filled;B) it keeps
One component Sealant to be filled and ambient pressure balance, and carry out platen pushing, obtained after discharging it is filling after one-component sealing
Glue.Compared with prior art, packaging process provided by the invention uses specific process step, realizes nitrogen protection, and specific
Under the conditions of stablize entire pouring process, while avoiding air that from entering colloid, guarantee the quality of One component Sealant not
It is impacted.The experimental results showed that packaging process provided by the invention obtain it is filling after One component Sealant filling effect it is good,
Without gel.
Meanwhile packaging process provided by the invention is simple, improves small, easy implementation to existing equipment, is suitble to large-scale industry
Production, has broad application prospects.
In order to further illustrate the present invention, it is described in detail below by following embodiment.Following embodiment of the present invention
One component Sealant used is single-component organic silicon sealant, including following components:
Hydroxyl endblocked polydimethylsiloxane 35wt%;
Dimethicone 10wt%;
Nanometer calcium carbonate 45wt%;
Fumed silica 3wt%;
Crosslinking agent (methyltrimethoxysilane) 4wt%;
Coupling agent (KH-560, γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane) 0.5wt%;
Catalyst (butyl titanate) 2.5wt%.
Embodiment 1
One component Sealant (50 DEG C~60 DEG C) to be filled in finished product kettle is pushed into press, is set at the top of the press
Set the vacuum (-tight) housing sealing with vacuum pumping valve and nitrogen valve, then open vacuum pumping valve, when pressure tabular value is shown as-
When 0.08MPa, stop vacuumizing, open the emptying of nitrogen valve inflated with nitrogen, when pressure tabular value is restored to 0MPa, takes out bottom
Plug carries out platen pushing, and pressure is 15MPa~20MPa, and pushing speed is 10cm/s, and temperature is 20 DEG C~30 DEG C, discharging;Out
Material process keep kettle in space be constantly in the nitrogen state of 1 atmospheric pressure, complete pouring process, obtain it is filling after single group
Part sealant.
The apparatus structure schematic diagram for the packaging process that the embodiment of the present invention 1 provides is shown in Figure 1.
The embodiment of the present invention 1 provide packaging process obtain it is filling after One component Sealant effect picture in kind referring to
Shown in Fig. 2;As shown in Figure 2, the embodiment of the present invention 1 provide packaging process obtain it is filling after the filling effect of One component Sealant
Fruit is good, no gel.
Comparative example 1
One component Sealant (50 DEG C~60 DEG C) to be filled in finished product kettle is pushed into press, take out the plug of bottom into
Row platen pushes, and pressure is 15MPa~20MPa, and pushing speed is 10cm/s, and temperature is 20 DEG C~30 DEG C, discharging;It completes filling
Process, obtain it is filling after One component Sealant.
Comparative example 1 provide packaging process obtain it is filling after One component Sealant effect picture in kind referring to Fig. 3 institute
Show;From the figure 3, it may be seen that comparative example 1 provide packaging process obtain it is filling after One component Sealant filling effect it is poor, have solidifying
Glue, and there are also skinning.
The above description of the disclosed embodiments, enables those skilled in the art to implement or use the present invention.It is right
A variety of modifications of these embodiments will be readily apparent to those skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein
Widest scope.
Claims (7)
1. a kind of packaging process of One component Sealant, comprising the following steps:
A) it after sealing One component Sealant to be filled, vacuumizes, then passing to nitrogen makes One component Sealant to be filled
It is balanced with ambient pressure;
B) keep One component Sealant to be filled and ambient pressure to balance, carry out platen pushing, obtained after discharging it is filling after
One component Sealant.
2. packaging process according to claim 1, which is characterized in that One component Sealant to be filled described in step a)
Filling or one-component polyurethane sealant selected from single-component organic silicon sealant.
3. packaging process according to claim 1, which is characterized in that One component Sealant to be filled described in step a)
Temperature be 45 DEG C~65 DEG C.
4. packaging process according to claim 1, which is characterized in that the process of sealing described in step a) specifically:
One component Sealant to be filled is pushed into press, vacuum (-tight) housing is set at the top of the press and is sealed.
5. packaging process according to claim 4, which is characterized in that the vacuum (-tight) housing is equipped with vacuum pumping valve and nitrogen valve
Door.
6. packaging process according to claim 1, which is characterized in that the vacuum degree vacuumized described in step a) be-
0.1MPa~-0.06MPa.
7. packaging process according to claim 1, which is characterized in that platen described in step b) push pressure be
10MPa~25MPa, pushing speed are 5cm/s~15cm/s, and temperature is 20 DEG C~30 DEG C.
Priority Applications (1)
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CN201910773146.2A CN110466813B (en) | 2019-08-21 | 2019-08-21 | Filling method of single-component sealant |
Applications Claiming Priority (1)
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CN201910773146.2A CN110466813B (en) | 2019-08-21 | 2019-08-21 | Filling method of single-component sealant |
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CN110466813A true CN110466813A (en) | 2019-11-19 |
CN110466813B CN110466813B (en) | 2020-10-23 |
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Citations (5)
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FR2851241A1 (en) * | 2003-02-13 | 2004-08-20 | Rhodia Chimie Sa | A method of emptying a flexible or big bag container containing a viscous polymer product such as mastic by placing in an cylindrical emptying tank and applying pressure to the top by means of a piston |
CN1555911A (en) * | 2003-12-31 | 2004-12-22 | 广州市白云化工实业有限公司 | Buffer reaction storage tank |
CN105562302A (en) * | 2015-12-22 | 2016-05-11 | 广州市白云化工实业有限公司 | Anti-skinning device of sealant storage tank |
CN206219174U (en) * | 2016-11-24 | 2017-06-06 | 上海保立佳新材料有限公司 | A kind of resilience high is not ftractureed fluid sealant filling apparatus |
CN208484855U (en) * | 2018-05-07 | 2019-02-12 | 东莞圣堡达实业投资有限公司 | A kind of fully-automatic sealing glue flexible package bottler |
-
2019
- 2019-08-21 CN CN201910773146.2A patent/CN110466813B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2851241A1 (en) * | 2003-02-13 | 2004-08-20 | Rhodia Chimie Sa | A method of emptying a flexible or big bag container containing a viscous polymer product such as mastic by placing in an cylindrical emptying tank and applying pressure to the top by means of a piston |
CN1555911A (en) * | 2003-12-31 | 2004-12-22 | 广州市白云化工实业有限公司 | Buffer reaction storage tank |
CN105562302A (en) * | 2015-12-22 | 2016-05-11 | 广州市白云化工实业有限公司 | Anti-skinning device of sealant storage tank |
CN206219174U (en) * | 2016-11-24 | 2017-06-06 | 上海保立佳新材料有限公司 | A kind of resilience high is not ftractureed fluid sealant filling apparatus |
CN208484855U (en) * | 2018-05-07 | 2019-02-12 | 东莞圣堡达实业投资有限公司 | A kind of fully-automatic sealing glue flexible package bottler |
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CN110466813B (en) | 2020-10-23 |
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