CN108789925A - A kind of production method of electrostatic prevention plastic material products - Google Patents
A kind of production method of electrostatic prevention plastic material products Download PDFInfo
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- CN108789925A CN108789925A CN201810612836.5A CN201810612836A CN108789925A CN 108789925 A CN108789925 A CN 108789925A CN 201810612836 A CN201810612836 A CN 201810612836A CN 108789925 A CN108789925 A CN 108789925A
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- raw material
- pet sheet
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- drying
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of production methods of electrostatic prevention plastic material products, it is characterised in that includes the following steps：(1) feedstock processing：Raw material is dried；(2) melting sources：It is first 100~120 DEG C of preheatings by raw material temperature, the time is 5~8min；It is warming up to 180~200 DEG C again to be heated, 3~5min of heating time；It is warming up to 270~290 DEG C again to be melted, fusing time is 7~10min；(3) injection molding：The raw material of fusing is sent into mold to carry out being molded into PET sheet；(4) PET sheet antistatic process：Electrically conducting transparent oil is uniformly smeared on the surface of PET sheet after molding, heating, drying is carried out after smearing, drying temperature is 60~80 DEG C, and drying time is 5~8min；(5) finished product is wound：PET sheet Jing Guo antistatic process is wound into a roll.Present invention process is simple, easy to operate, and antistatic plastic obtained has good anti-static effect through the invention, can effectively prevent the electrostatic because of caused by friction or other reasons from reacting, meet the market demand.
Description
Technical field
The present invention relates to a kind of production methods of electrostatic prevention plastic material products, belong to plastic products technology field.
Background technology
Plastics are to pass through high-molecular compound made of addition polymerization or polycondensation polymerized using monomer as raw material
(macromolecules), it is commonly called as plastics (plastics) or resin (resin), can freely change ingredient and body styles,
It is made of the additives such as synthetic resin and filler, plasticizer, stabilizer, lubricant, colorant, the main component of plastics is resin.
This noun of resin is initially the lipid secreted out of by animals and plants and gains the name, such as rosin, shellac, resin refer to not yet with it is various
The high-molecular compound of additive mixing, resin account for about the 40%~100% of plastics gross mass, and the basic performance of plastics is mainly determined
Due to the person's character of resin, but additive also plays an important role, some plastics substantially be made of synthetic resin, be free of or
Contain additive, such as organic glass, polystyrene less, so-called plastics, it is one kind in synthetic resin in fact, and shape is with natural
Pine resin in resin is similar, artificial synthesized by chemical means progress, and is referred to as plastics.
The use of plastics is more and more frequent, and the range of application is also increasingly wider, such as beverage bottle, to-go box, plastics at
Type quality directly affects the use of consumer, and existing product is only in its surface smear silicone oil, without antistatic process,
Cause there is electrostatic to generate especially in winter when using, it is bad to the use degree of consumer although not big problem.
Invention content
The purpose of the present invention is to provide a kind of forming and the production methods of the plastic products of antistatic.
The mesh of the present invention is achieved through the following technical solutions：
A kind of production method of electrostatic prevention plastic material products, includes the following steps：
(1) feedstock processing：It chooses transparent and free from admixture PET crystalline solid to be dried as raw material, and by raw material, makes knot
Moisture in crystal is less than≤0.5%；
(2) melting sources：It is first 100~120 DEG C of preheatings by raw material temperature, the time is 5~8min；It is warming up to again
180~200 DEG C are heated, 3~5min of heating time；270~290 DEG C are warming up to again to be melted, fusing time be 7~
10min；
(3) injection molding：The raw material of fusing is sent into mold to carry out being molded into PET sheet, and to PET sheet after molding
It is cooled down；
(4) PET sheet antistatic process：Electrically conducting transparent oil is uniformly smeared on the surface of PET sheet after molding, after smearing
Heating, drying is carried out, drying temperature is 60~80 DEG C, and drying time is 5~8min；
(5) finished product is wound：PET sheet Jing Guo antistatic process is wound into a roll.
Further, it is 0-5 to be added in raw material described in step (1) with raw material ratio:95 Masterbatch, in the Masterbatch
Contain one or more mixtures in titanium dioxide, chrome yellow, phthalein blueness.
Further, the width of the PET sheet is 60~80cm.
Further, it is 20~30cm that step (5) described PET sheet, which is wound into a roll of radius,.
The invention has the advantages that：
(1) processing is dried to raw material, moisture in raw material is gone out, avoided in being perhaps melted and molded and contain moisture,
Phenomena such as causing molding effect bad, or generating bubble；
(2) it is gradually melted using 3 temperature in melting sources, fusing effect is more preferable, can be by raw material when pre-warmed
Primary heats and can also remove the micro moisture contained in raw material, and raw material can be carried out being heated to crystallize by temperature when heating
Body crystallization temperature, even if raw material softens and is unlikely to melt, for the crystal after softening by high temperature melting, melting efficiency is high, melts
Change more thorough, and moisture-free in molten slurry after melting, into mold after be not easy to contain gas, sheet material after molding is homogeneous, at
Type effect is good；
(3) sheet material after molding is being dried with after smearing last layer electrically conducting transparent oil on its surface, its surface is made to have
Antistatic and dust-proof effect；
(4) it is equally that the Masterbatch of crystalline solid adjusts the color of plastic products that can be added in the feed, and the depth of color is not
Effect of the titanium dioxide, chrome yellow, phthalein blueness contained with the Masterbatch of the weight of addition, in Masterbatch to plastics by coloring；
(5) simple for process, easy to operate, antistatic plastic obtained has good anti-static effect through the invention,
It can effectively prevent the electrostatic because of caused by friction or other reasons from reacting, meet the market demand.
Specific implementation mode
Embodiment 1
The production method of electrostatic prevention plastic material products provided in this embodiment includes the following steps：
(1) feedstock processing：It chooses transparent and free from admixture PET crystalline solid to be dried as raw material, and by raw material, makes knot
Moisture in crystal is less than≤0.5%, and vacuum drying can be used in specific drying, and drying time has more the moisture in raw material and contains
Amount determines, in particular in vacuum drying tank adds moisture content detection device, can detect vacuum drying moisture in real time, determines dry
The dry time；
(2) melting sources：It is first 100 DEG C of preheatings, time 8min by raw material temperature；Be warming up to again 180 DEG C into
Row heating, heating time 5min；It is warming up to 270 DEG C again to be melted, fusing time 10min, can be incited somebody to action when pre-warmed
Raw material primary heats and can also remove the micro moisture contained in raw material, and raw material can be heated to by temperature when heating
Crystalline solid crystallization temperature, even if raw material softens and is unlikely to melt, the crystal after softening is by high temperature melting；
(3) injection molding：The raw material of fusing is squeezed out feeding mold to carry out being molded into PET sheet, and to PET after molding
Sheet material is cooled down, and the mold cavity width of the mold is 60cm, to which the width of molding PET sheet is 60cm；
(4) PET sheet antistatic process：Electrically conducting transparent oil is uniformly smeared on the surface of PET sheet after molding, after smearing
Heating, drying is carried out, drying temperature is 60 DEG C, drying time 8min；
(5) finished product is wound：PET sheet Jing Guo antistatic process is wound into a roll, a roll of radius is 30cm, is convenient for
Transport and storage.
Embodiment 2
The production method of electrostatic prevention plastic material products provided in this embodiment includes the following steps：
(1) feedstock processing：It chooses transparent and free from admixture PET crystalline solid to be dried as raw material, and by raw material, makes knot
Moisture in crystal is less than≤0.5%, and vacuum drying can be used in specific drying, and drying time has more the moisture in raw material and contains
Amount determines, in particular in vacuum drying tank adds moisture content detection device, can detect vacuum drying moisture in real time, determines dry
The dry time；
(2) melting sources：It is first 110 DEG C of preheatings, time 7min by raw material temperature；Be warming up to again 190 DEG C into
Row heating, heating time 4min；It is warming up to 280 DEG C again to be melted, fusing time 9min, it can will be former when pre-warmed
Material is primary to heat and can also remove the micro moisture contained in raw material, and raw material can be carried out being heated to tie by temperature when heating
Crystal structure temperature, even if raw material softens and is unlikely to melt, the crystal after softening is by high temperature melting；
(3) injection molding：The raw material of fusing is squeezed out feeding mold to carry out being molded into PET sheet, and to PET after molding
Sheet material is cooled down, and the mold cavity width of the mold is 70cm, to which the width of molding PET sheet is 70cm；
(4) PET sheet antistatic process：Electrically conducting transparent oil is uniformly smeared on the surface of PET sheet after molding, after smearing
Heating, drying is carried out, drying temperature is 70 DEG C, drying time 7min；
(5) finished product is wound：PET sheet Jing Guo antistatic process is wound into a roll, a roll of radius is 25cm, is convenient for
Transport and storage.
Embodiment 3
The production method of electrostatic prevention plastic material products provided in this embodiment includes the following steps：
(1) feedstock processing：It chooses transparent and free from admixture PET crystalline solid to be dried as raw material, and by raw material, makes knot
Moisture in crystal is less than≤0.5%, and vacuum drying can be used in specific drying, and drying time has more the moisture in raw material and contains
Amount determines, in particular in vacuum drying tank adds moisture content detection device, can detect vacuum drying moisture in real time, determines dry
The dry time；
(2) melting sources：It is first 120 DEG C of preheatings, time 5min by raw material temperature；Be warming up to again 200 DEG C into
Row heating, heating time 3min；It is warming up to 290 DEG C again to be melted, fusing time 7min, it can will be former when pre-warmed
Material is primary to heat and can also remove the micro moisture contained in raw material, and raw material can be carried out being heated to tie by temperature when heating
Crystal structure temperature, even if raw material softens and is unlikely to melt, the crystal after softening is by high temperature melting；
(3) injection molding：The raw material of fusing is squeezed out feeding mold to carry out being molded into PET sheet, and to PET after molding
Sheet material is cooled down, and the mold cavity width of the mold is 80cm, to which the width of molding PET sheet is 80cm；
(4) PET sheet antistatic process：Electrically conducting transparent oil is uniformly smeared on the surface of PET sheet after molding, after smearing
Heating, drying is carried out, drying temperature is 80 DEG C, drying time 5min；
(5) finished product is wound：PET sheet Jing Guo antistatic process is wound into a roll, a roll of radius is 30cm, is convenient for
Transport and storage.
Embodiment 4
The production method of electrostatic prevention plastic material products provided in this embodiment includes the following steps：
(1) feedstock processing：Transparent and free from admixture PET crystalline solid is chosen as raw material, and Masterbatch is added in raw material kind,
Raw material：Masterbatch is 95:0-5, wherein the quantity of the Masterbatch is related to shade, the smooth ratio of color from shallow to deep
Gradually deepen, because present invention is mainly used for the transparent plastic products of production, so the component of Masterbatch should not add all, it is described
Contain one or more mixtures in titanium dioxide, chrome yellow, phthalein blueness in Masterbatch.Contained according to what different colors took the circumstances into consideration to add
There is the Masterbatch of one or more mixtures in different titanium dioxides, chrome yellow, phthalein blueness；By the mixture of raw material and Masterbatch
It is dried, so that the moisture in crystalline solid is less than≤0.5%, vacuum drying can be used in specific drying, and drying time has more
Moisture in raw material determines, in particular in vacuum drying tank adds moisture content detection device, and it is dry can to detect vacuum in real time
Dry moisture, determines drying time；
(2) melting sources：It is first 110 DEG C of preheatings, time 6min by raw material temperature；Be warming up to again 190 DEG C into
Row heating, heating time 4min；It is warming up to 280 DEG C again to be melted, fusing time 8min, it can will be former when pre-warmed
Material is primary to heat and can also remove the micro moisture contained in raw material, and raw material can be carried out being heated to tie by temperature when heating
Crystal structure temperature, even if raw material softens and is unlikely to melt, the crystal after softening is by high temperature melting；
(3) injection molding：The raw material of fusing is squeezed out feeding mold to carry out being molded into PET sheet, and to PET after molding
Sheet material is cooled down, and the mold cavity width of the mold is 70cm, to which the width of molding PET sheet is 70cm；
(4) PET sheet antistatic process：Electrically conducting transparent oil is uniformly smeared on the surface of PET sheet after molding, after smearing
Heating, drying is carried out, drying temperature is 70 DEG C, drying time 6min；
(5) finished product is wound：PET sheet Jing Guo antistatic process is wound into a roll, a roll of radius is 25cm, is convenient for
Transport and storage.
The above is only the preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, any
The transformation and replacement that are carried out based on technical solution provided by the present invention and inventive concept should all cover the protection model in the present invention
In enclosing.
Claims (4)
1. a kind of production method of electrostatic prevention plastic material products, it is characterised in that include the following steps：
(1) feedstock processing：It chooses transparent and free from admixture PET crystalline solid to be dried as raw material, and by raw material, makes crystalline solid
Interior moisture is less than≤0.5%；
(2) melting sources：It is first 100~120 DEG C of preheatings by raw material temperature, the time is 5~8min；It is warming up to 180 again
~200 DEG C are heated, 3~5min of heating time；270~290 DEG C are warming up to again to be melted, fusing time be 7~
10min；
(3) injection molding：The raw material of fusing is sent into mold to carry out being molded into PET sheet, and PET sheet after molding is carried out
It is cooling；
(4) PET sheet antistatic process：Electrically conducting transparent oil is uniformly smeared on the surface of PET sheet after molding, is carried out after smearing
Heating, drying, drying temperature are 60~80 DEG C, and drying time is 5~8min；
(5) finished product is wound：PET sheet Jing Guo antistatic process is wound into a roll.
2. the production method of electrostatic prevention plastic material products according to claim 1, it is characterised in that：It is former described in step (1)
It is 0-5 to be added in material with raw material ratio:95 Masterbatch contains one kind in titanium dioxide, chrome yellow, phthalein blueness or more in the Masterbatch
The mixture of kind.
3. the production method of electrostatic prevention plastic material products according to claim 1, it is characterised in that：The width of the PET sheet
Degree is 60~80cm.
4. the production method of electrostatic prevention plastic material products according to claim 1, it is characterised in that：Step (5) described PET sheet
It is 20~30cm that material, which is wound into a roll of radius,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612836.5A CN108789925A (en) | 2018-06-14 | 2018-06-14 | A kind of production method of electrostatic prevention plastic material products |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612836.5A CN108789925A (en) | 2018-06-14 | 2018-06-14 | A kind of production method of electrostatic prevention plastic material products |
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| CN108789925A true CN108789925A (en) | 2018-11-13 |
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| CN201810612836.5A Pending CN108789925A (en) | 2018-06-14 | 2018-06-14 | A kind of production method of electrostatic prevention plastic material products |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111923274A (en) * | 2020-08-14 | 2020-11-13 | 泰马克精密铸造（苏州）有限公司 | Injection molding process of transparent PET material |
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| CN105459322A (en) * | 2014-09-04 | 2016-04-06 | 天津煊宇包装制品有限公司 | Polyethylene terephthalate (PET) bottle cap production technique |
| CN106847590A (en) * | 2017-04-14 | 2017-06-13 | 常州信息职业技术学院 | A kind of preparation method of film key switch and thin-film key panel |
-
2018
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Patent Citations (4)
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|---|---|---|---|---|
| EP0088625A1 (en) * | 1982-03-08 | 1983-09-14 | E.I. Du Pont De Nemours And Company | Process for thermoforming reinforced polymer sheets |
| CN105459322A (en) * | 2014-09-04 | 2016-04-06 | 天津煊宇包装制品有限公司 | Polyethylene terephthalate (PET) bottle cap production technique |
| CN104875353A (en) * | 2015-05-26 | 2015-09-02 | 倚兰（北京）环保净化工程设备有限公司 | Production method for environment-friendly wholly-plastic quick-connection faucet of water purification equipment |
| CN106847590A (en) * | 2017-04-14 | 2017-06-13 | 常州信息职业技术学院 | A kind of preparation method of film key switch and thin-film key panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111923274A (en) * | 2020-08-14 | 2020-11-13 | 泰马克精密铸造（苏州）有限公司 | Injection molding process of transparent PET material |
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