CN102924844B - Ultra-permeable PVC (polyvinyl chloride) film and preparation method thereof - Google Patents
Ultra-permeable PVC (polyvinyl chloride) film and preparation method thereof Download PDFInfo
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- CN102924844B CN102924844B CN201210380173.1A CN201210380173A CN102924844B CN 102924844 B CN102924844 B CN 102924844B CN 201210380173 A CN201210380173 A CN 201210380173A CN 102924844 B CN102924844 B CN 102924844B
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- pvc
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- pvc film
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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
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention discloses an ultra-permeable PVC (polyvinyl chloride) film which comprises the following raw materials by weight percentage: 60%-80% of PVC sizing material, 5%-10% of zinc powder, 1.5%-2% of oil, 10%-30% of plasticizer DOP (dioctyl-phthalate) and 2%-4% of cadmium barium zinc compound stabilizer. A preparation method of the ultra-permeable PVC film comprises the following steps of: burdening, banburying, refining in an open way, filtering, extruding, calendaring by six rollers, introducing purified water, drying, shaping, refrigerating, coiling and packing. The PVC film obtained by the invention is small in thickness which can be less than 1.2mm, nontoxic, high in photo-permeability, impact-resistant, tear-resistant, free from combustion, and free from moisture absorption, thereby being particularly suitable for the requirement of various high-speed automatic packaging machinery. Therefore, the film disclosed by the invention can be widely used for the package for the printing industry, the furniture, the drug, the articles of everyday use and the like, and plays a part in moisture resistance and dust resistance.
Description
Technical field
The present invention relates to a kind of PVC film, specifically, relate to a kind of super PVC film and preparation method thereof.
background technology
Polyvinyl chloride true qualities are that micro-yellow is translucent, glossy.Transparency is better than polyethylene, polypropylene, is worse than polystyrene, and different with auxiliary dosage, be divided into soft, rigid polyvinyl chloride, soft goods is soft and tough, and feel is glued, and the hardness of boardy product is higher than Low Density Polyethylene, and lower than polypropylene, in flexion, place there will be albinism.
The PVC of interpolation softening agent has the physical strength required by satisfied engineering plastics, as tensile strength, elongation, shock strength, bending strength etc., so people are based on polyvinyl chloride (PVC), be equipped with various processing aid, develop applicable candy, food, medicine, clothes and packing cigarette PVC film by extrusion blow molding processes.This film on the packaging profile is well-pressed, and corner angle are clearly demarcated, unfolds, wrinkling resistance is strong, transparency is high, fragrance protectiveness is good.Therefore, apply widely once appearing on the market just to obtain.
But the transparency of existing PVC film is lower, because its low-temperature flexibility is poor, the thickness of PVC film is general thicker.
summary of the invention
Instant invention overcomes shortcoming of the prior art, provide a kind of super PVC film and preparation method thereof, the PVC film thickness that it obtains can to below 1.2mm, and transparency is high, and good toughness, durable in use, and low cost of manufacture.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of super PVC film, the raw material of its weight percent consists of: PVC sizing material 60%-80%, zinc powder 5%-10%, oily 1.5%-2%, plasticizer DOP 10%-30%, Ge-Ba-Zn composite stabilizer 2% ~ 4%.
Further, PVC sizing material 75%, zinc powder 10%, oil 2%, plasticizer DOP 10%, Ge-Ba-Zn composite stabilizer 3%.
Further, described oil is epoxy soybean oil.
A kind of preparation process of super PVC film comprises: batching, banburying, open refining, filter, extrude, six roll-ins are prolonged, cross pure water, oven dry, sizing, refrigeration, rolling and packaging.
Further, described banburying temperature is 100-120 DEG C, and mixing temperature is 80-100 DEG C.
Further, described in extrude employing twin-screw extrusion, temperature is respectively 100-120 DEG C, 120-140 DEG C, 140-160 DEG C.
Further, described six roll-ins are prolonged and are divided into the calendering of three groups of roll bodies, and three groups of roll body temperature are followed successively by 170-180 DEG C, 190-210 DEG C, 180-170 DEG C, and its spacing from large to small.
Further, the temperature control of described pure water is at 20-25 DEG C, and water power resistance is the pure water of 20-50 Ω.
Further, described oven dry adopts first to cross heating system oven dry moisture content, and this heating system is to 120-150 DEG C by roll shaft heat-conducting oil heating.
Further, described sizing adopts oil system cooling and shaping, and this cooling system refers to and adopts the thermal oil of condenser cooling to be communicated with into cooling roller, and make chill-roll temperature arrive 0-25 DEG C, PVC film is rotated and cooling forming along cooling roller.
Compared with prior art, the invention has the beneficial effects as follows:
The PVC film thickness that the present invention obtains is little, can to below 1.2mm, and nontoxic, the high printing opacity of product, shock-resistant, anti tear, do not burn, nonhygroscopic, be specially adapted to the requirement of various high speed auto packer tool.Therefore the packagings such as printing industry, furniture, medicine, food, makeup, daily necessities be can be widely used in, protection against the tide, dustproof effect played.
Embodiment
The super PVC film of one of the present invention, the raw material of its weight percent consists of: PVC sizing material 75%, zinc powder 10%, oil 2%, plasticizer DOP 10%, Ge-Ba-Zn composite stabilizer 3%.
In the present embodiment, oil adopts epoxy soybean oil, pollution-free to food, can be used for food product pack.
Adopt the PVC film of this composition, transparency is good, good toughness, anti tear, can obtain the PVC film of thickness 0.5mm, durable in use.
The preparation process of a kind of super PVC film of the present invention comprises: batching, banburying, open refining, filter, extrude, six roll-ins are prolonged, cross pure water, oven dry, sizing, refrigeration, rolling and packaging.
1. banburying temperature 100-120 DEG C.
2. mixing temperature 80-100 DEG C.
3. extrude employing twin-screw extrusion, temperature is respectively 100-120 DEG C, 120-140 DEG C, 140-160 DEG C.
4. six roll-ins are prolonged is the compacting of employing six roll calendar, the gap of control roller temperature and roll body adjusts the thickness of super PVC film and shaping thickness uniformity coefficient, be divided into three groups of roll body calenderings, roll body temperature is respectively 170-180 DEG C, 190-210 DEG C, 180-170 DEG C, roll body spacing regulates with the thickness of film, from large to small, the gap of last group roll body is the thickness of finished film to three groups of roll body spacing.
5. crossing pure water is that the temperature control of water is at 20-25 DEG C, and hydromining resistance value is the pure water of 20-50 Ω, to ensure that PVC surpasses permeable membrane by water quality impact feculence by the PVC film of calendering formation through the cooling of pure water pond.
6. drying is adopt first to cross heating system oven dry moisture content, and this heating system refers to by roll shaft heat-conducting oil heating to 120-150 DEG C, and PVC film rotates through heating roll shaft the evaporation moisture content that is heated.
7. sizing adopts oil system cooling and shaping, and this cooling system refers to and is communicated with into roll shaft by employing ice pole condenser cooling thermal oil, and make chill-roll temperature arrive 0-25 DEG C, PVC film is rotated and cooling forming along cooling roller.
8. refrigeration the PVC of preparation is surpassed the refrigerating chamber that permeable membrane is positioned over 10-25 DEG C to bond after preventing film rolling for 30 minutes.
Film as produced more than 1.2mm thickness then adopts the mode of some layers of PVC film heating high-temperature pressurizing laminating to prepare.
Last it is noted that these are only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; but it is within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the preparation method of a super PVC film, it is characterized in that, the raw material of its weight percent consists of: PVC sizing material 60%-80%, zinc powder 5%-10%, oily 1.5%-2%, plasticizer DOP 10%-30%, Ge-Ba-Zn composite stabilizer 2% ~ 4%, and described oil is epoxy soybean oil;
Its preparation process comprises: batching, banburying, open refining, filter, extrude, six roll-ins are prolonged, cross pure water, oven dry, sizing, refrigeration, rolling and packaging;
Described banburying temperature is 100-120 DEG C, and mixing temperature is 80-100 DEG C;
Describedly extrude employing twin-screw extrusion, temperature is respectively 100-120 DEG C, 120-140 DEG C, 140-160 DEG C;
Described six roll-ins are prolonged and are divided into the calendering of three groups of roll bodies, and three groups of roll body temperature are followed successively by 170-180 DEG C, 190-210 DEG C, 180-170 DEG C, and its spacing from large to small;
The temperature control of described pure water is at 20-25 DEG C, and water power resistance is the pure water of 20-50 Ω;
Described oven dry adopts first to cross heating system oven dry moisture content, and this heating system refers to by roll shaft heat-conducting oil heating to 120-150 DEG C, and PVC film rotates through heating roll shaft the evaporation moisture content that is heated;
Described sizing adopts oil system cooling and shaping, and this cooling system refers to and adopts the thermal oil of condenser cooling to be communicated with into cooling roller, and make chill-roll temperature arrive 0-25 DEG C, PVC film is rotated and cooling forming along cooling roller.
2. the preparation method of a kind of super PVC film according to claim 1, is characterized in that, described PVC sizing material 75%, zinc powder 10%, oil 2%, plasticizer DOP 10%, Ge-Ba-Zn composite stabilizer 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380173.1A CN102924844B (en) | 2012-10-09 | 2012-10-09 | Ultra-permeable PVC (polyvinyl chloride) film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380173.1A CN102924844B (en) | 2012-10-09 | 2012-10-09 | Ultra-permeable PVC (polyvinyl chloride) film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102924844A CN102924844A (en) | 2013-02-13 |
| CN102924844B true CN102924844B (en) | 2015-03-11 |
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| CN201210380173.1A Active CN102924844B (en) | 2012-10-09 | 2012-10-09 | Ultra-permeable PVC (polyvinyl chloride) film and preparation method thereof |
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| CN103756197B (en) * | 2014-01-26 | 2016-01-13 | 东莞市悠悠美居家居制造有限公司 | High definition transparent pvc film and preparation method thereof |
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| CN109370103A (en) * | 2018-09-03 | 2019-02-22 | 李永平 | A kind of zero super film shunk |
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| CN109370098A (en) * | 2018-09-03 | 2019-02-22 | 李永平 | A kind of micro- contraction method of ultra-wide PVC roll material |
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| CN109385022A (en) * | 2018-09-03 | 2019-02-26 | 李永平 | A kind of super film of lamination coating |
| CN109370096A (en) * | 2018-09-03 | 2019-02-22 | 李永平 | A kind of zero shrink process method of crystal slab |
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| CN102924844A (en) | 2013-02-13 |
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Owner name: FOSHAN WEIMING PLASTICS CO., LTD. Free format text: FORMER OWNER: LI YONGPING Effective date: 20150105 |
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Effective date of registration: 20150105 Address after: Foshan City, Guangdong province 528500 city streets Gaoming District Three Zhou Bi Gui Road No. 146 Applicant after: FOSHAN WEIMING PLASTICS CO., LTD. Address before: Gaoming District of Foshan city in Guangdong province 528500 city streets three Garden Road No. 146, Zhou Weiming plastics company Applicant before: Li Yongping |
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