CN105172292A - Film for casting - Google Patents
Film for casting Download PDFInfo
- Publication number
- CN105172292A CN105172292A CN201510586463.5A CN201510586463A CN105172292A CN 105172292 A CN105172292 A CN 105172292A CN 201510586463 A CN201510586463 A CN 201510586463A CN 105172292 A CN105172292 A CN 105172292A
- Authority
- CN
- China
- Prior art keywords
- film
- parts
- thin film
- topmost thin
- lower film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
Landscapes
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the field of casting, and particularly relates to a film for casting. The film is divided into an upper layer of film and a lower layer of film, wherein an adhesive layer is arranged between the upper layer of film and the lower layer of film. The film is characterized in that the upper layer of film is prepared from the following components in parts by weight: 70-80 parts of thermoplastic polyurethane, 5-10 parts of pulpous rosin, 15-20 parts of polyolefin based compound, 2-3 parts of antioxidant and 1-3 parts of lubricant; the lower layer of film is prepared from the following components in parts by weight: 60-65 parts of polycarbonate, 15-20 parts of sericin, 30-35 parts of pulpous PVB, 2-3 parts of harmless plasticizer, 1-2 parts of monohydroxy-alcohol, 1-2 parts of antioxidant and 1-2 parts of stabilizer; the adhesive layer is prepared from the following components in parts by weight: 30-40 parts of pulpous phenolic resin, 5-10 parts of dextrin, 15-20 parts of starch, 5-10 parts of casein glue and 3-6 parts of mineral wax. The film has no scars, sundries or bubbles, little gas is produced by heated decomposition, and the gas is non-toxic and tasteless and has little dust.
Description
Technical field:
The present invention relates to casting field, relate to a kind of Film Used In Casting in particular.
Background technology:
By plastic film covering on wooden model, then can carry out pouring practice in some casting techniques, the normal film used has two kinds of production technologies now, and the tape casting and blowing, the two respectively has pluses and minuses.The advantage of casting films is thin and even, the large resistance to baking of hot strength of film thickness, and not cracky when film baking and overlay film, shortcoming is that the vertical lateral variation of elongation at break is bigger than normal, and the large easy-formation of overlay film rear film residual strength is bad.It is slightly thick and uneven to there is film in blown film, and hot strength, lower than casting films, easily occur breakage, but the vertical lateral variation of blown film elongation at break is little, overlay film rear film residual strength little easy-formation when film baking and overlay film.
Summary of the invention:
Technical problem to be solved by this invention is to overcome existing technological deficiency provides a kind of thickness thin and the even and Film Used In Casting of easy-formation.
Technical problem to be solved by this invention adopts following technical scheme to realize:
A kind of Film Used In Casting, described film is divided into topmost thin film and lower film, be provided with bond layer in the middle of described topmost thin film and lower film, it is characterized in that described topmost thin film comprises the component of following weight portion: 70-80 part thermoplastic polyurethane, 5-10 part pulpous state rosin, 15-20 part polyolefin-based compounds, 2-3 part antioxidant, 1-3 part lubricant; Described lower film comprises the component of following weight portion: the harmless plasticizer of PVB, 2-3 part of 60-65 part Merlon, 15-20 part sericin, 30-35 part pulpous state, 1-2 part MHA, 1-2 part antioxidant, 1-2 part stabilizing agent; Described adhesive layer comprises the component of following weight portion: 30-40 part pulpous state phenolic resins, 5-10 part dextrin, 15-20 part starch, 5-10 part casein glue, 3-6 part mineral wax.
A manufacture method for Film Used In Casting, is characterized in that comprising the following steps:
(1) prepare topmost thin film: mixed in high-speed mixer by raw material, obtain compound; Compound is extruded in the screw machine of 170-200 DEG C, draws, granulation, the rotating speed of screw machine is 400-800 rev/min, obtains topmost thin film materials; Topmost thin film materials are passed in screw cylinder, by utilizing, the mode of heating spiral rod barrel makes it be heated, melting, shearing, mixing one-tenth molten condition, then after metre filter, T-shaped mould is extruded into again, by T-shaped mould be adjusted to thickness homogeneous after extrude curtain coating and become thickness to be the film of 0.01-0.1mm, last cooling forming, obtains topmost thin film;
(2) lower film is prepared: be dissolved in by raw material and make by the mixed solvent of optimum and not optimum two kinds of solvent compositions the solution that bulking value concentration is 15 ~ 50%, in mixed solvent, percent by volume shared by poor solvent is 40 ~ 80%; Adopt the tape casting, prolonged at clean glass plate or polyester film strips upper reaches by solution, drying prepares lower film, and thickness is 0.01-0.1mm;
(3) topmost thin film and lower film are carried out feeding by feeding roller respectively, at topmost thin film and lower film surface coated with adhesive in feeding process, then pressurized, heated process is carried out to topmost thin film and lower film, topmost thin film and lower film are bonded as one by adhesive, adhesive layer thickness is 0.005-0.05mm, then sent into cooling device and carried out cooling processing, batched as finished product finally by winding up roller.
The present invention is without scar, foreign material and bubble, and the gas that decomposes produces is few, nonpoisonous and tasteless, and ash content is few, the large resistance to baking of hot strength, not cracky when baking and overlay film, overlay film rear film seldom remaining and shaping relatively easily.
Detailed description of the invention:
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1: a kind of Film Used In Casting, film is divided into topmost thin film and lower film, be provided with bond layer in the middle of topmost thin film and lower film, topmost thin film comprises the component of following weight portion: 80 parts of thermoplastic polyurethanes, 10 parts of pulpous state rosin, 20 parts of polyolefin-based compounds, 3 parts of antioxidants, 3 parts of lubricants; Lower film comprises the component of following weight portion: the PVB of 65 parts of Merlon, 20 parts of sericins, 35 parts of pulpous states, 3 parts of harmless plasticizer, 2 parts of MHAs, 2 parts of antioxidants, 2 parts of stabilizing agents; Adhesive layer comprises the component of following weight portion: 40 parts of pulpous state phenolic resins, 10 parts of dextrin, 20 parts of starch, 10 parts of casein glues, 6 parts of mineral waxs.
A manufacture method for Film Used In Casting, comprises the following steps:
(1) prepare topmost thin film: mixed in high-speed mixer by raw material, obtain compound; Compound is extruded in the screw machine of 170-200 DEG C, draws, granulation, the rotating speed of screw machine is 400-800 rev/min, obtains topmost thin film materials; Topmost thin film materials are passed in screw cylinder, by utilizing, the mode of heating spiral rod barrel makes it be heated, melting, shearing, mixing one-tenth molten condition, then after metre filter, T-shaped mould is extruded into again, by T-shaped mould be adjusted to thickness homogeneous after extrude curtain coating and become thickness to be the film of 0.03mm, last cooling forming, obtains topmost thin film;
(2) lower film is prepared: be dissolved in by raw material and make by the mixed solvent of optimum and not optimum two kinds of solvent compositions the solution that bulking value concentration is 50%, in mixed solvent, percent by volume shared by poor solvent is 80%; Adopt the tape casting, prolonged at clean glass plate or polyester film strips upper reaches by solution, drying prepares lower film, and thickness is 0.05mm;
(3) topmost thin film and lower film are carried out feeding by feeding roller respectively, at topmost thin film and lower film surface coated with adhesive in feeding process, then pressurized, heated process is carried out to topmost thin film and lower film, topmost thin film and lower film are bonded as one by adhesive, adhesive layer thickness is 0.009mm, then sent into cooling device and carried out cooling processing, batched as finished product finally by winding up roller.
Embodiment 2: a kind of Film Used In Casting, film is divided into topmost thin film and lower film, be provided with bond layer in the middle of topmost thin film and lower film, topmost thin film comprises the component of following weight portion: 70 parts of thermoplastic polyurethanes, 5 parts of pulpous state rosin, 15 parts of polyolefin-based compounds, 2 parts of antioxidants, 1 part of lubricant; Lower film comprises the component of following weight portion: the PVB of 60 parts of Merlon, 15 parts of sericins, 30 parts of pulpous states, 2 parts of harmless plasticizer, 1 part of MHA, 1 part of antioxidant, 1 part of stabilizing agent; Adhesive layer comprises the component of following weight portion: 30 parts of pulpous state phenolic resins, 5 parts of dextrin, 15 parts of starch, 5 parts of casein glues, 3 parts of mineral waxs.
A manufacture method for Film Used In Casting, is characterized in that comprising the following steps:
(1) prepare topmost thin film: mixed in high-speed mixer by raw material, obtain compound; Compound is extruded in the screw machine of 170-200 DEG C, draws, granulation, the rotating speed of screw machine is 400-800 rev/min, obtains topmost thin film materials; Topmost thin film materials are passed in screw cylinder, by utilizing, the mode of heating spiral rod barrel makes it be heated, melting, shearing, mixing one-tenth molten condition, then after metre filter, T-shaped mould is extruded into again, by T-shaped mould be adjusted to thickness homogeneous after extrude curtain coating and become thickness to be the film of 0.04mm, last cooling forming, obtains topmost thin film;
(2) lower film is prepared: be dissolved in by raw material and make by the mixed solvent of optimum and not optimum two kinds of solvent compositions the solution that bulking value concentration is 15%, in mixed solvent, percent by volume shared by poor solvent is 40%; Adopt the tape casting, prolonged at clean glass plate or polyester film strips upper reaches by solution, drying prepares lower film, and thickness is 0.04mm;
(3) topmost thin film and lower film are carried out feeding by feeding roller respectively, at topmost thin film and lower film surface coated with adhesive in feeding process, then pressurized, heated process is carried out to topmost thin film and lower film, topmost thin film and lower film are bonded as one by adhesive, adhesive layer thickness is 0.01mm, then sent into cooling device and carried out cooling processing, batched as finished product finally by winding up roller.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. a Film Used In Casting, described film is divided into topmost thin film and lower film, be provided with bond layer in the middle of described topmost thin film and lower film, it is characterized in that described topmost thin film comprises the component of following weight portion: 70-80 part thermoplastic polyurethane, 5-10 part pulpous state rosin, 15-20 part polyolefin-based compounds, 2-3 part antioxidant, 1-3 part lubricant; Described lower film comprises the component of following weight portion: the harmless plasticizer of PVB, 2-3 part of 60-65 part Merlon, 15-20 part sericin, 30-35 part pulpous state, 1-2 part MHA, 1-2 part antioxidant, 1-2 part stabilizing agent; Described adhesive layer comprises the component of following weight portion: 30-40 part pulpous state phenolic resins, 5-10 part dextrin, 15-20 part starch, 5-10 part casein glue, 3-6 part mineral wax.
2. a manufacture method for Film Used In Casting, is characterized in that comprising the following steps:
(1) prepare topmost thin film: mixed in high-speed mixer by raw material, obtain compound; Compound is extruded in the screw machine of 170-200 DEG C, draws, granulation, the rotating speed of screw machine is 400-800 rev/min, obtains topmost thin film materials; Topmost thin film materials are passed in screw cylinder, by utilizing, the mode of heating spiral rod barrel makes it be heated, melting, shearing, mixing one-tenth molten condition, then after metre filter, T-shaped mould is extruded into again, by T-shaped mould be adjusted to thickness homogeneous after extrude curtain coating and become thickness to be the film of 0.01-0.1mm, last cooling forming, obtains topmost thin film;
(2) lower film is prepared: be dissolved in by raw material and make by the mixed solvent of optimum and not optimum two kinds of solvent compositions the solution that bulking value concentration is 15 ~ 50%, in mixed solvent, percent by volume shared by poor solvent is 40 ~ 80%; Adopt the tape casting, prolonged at clean glass plate or polyester film strips upper reaches by solution, drying prepares lower film, and thickness is 0.01-0.1mm;
(3) topmost thin film and lower film are carried out feeding by feeding roller respectively, at topmost thin film and lower film surface coated with adhesive in feeding process, then pressurized, heated process is carried out to topmost thin film and lower film, topmost thin film and lower film are bonded as one by adhesive, adhesive layer thickness is 0.005-0.05mm, then sent into cooling device and carried out cooling processing, batched as finished product finally by winding up roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510586463.5A CN105172292A (en) | 2015-09-15 | 2015-09-15 | Film for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510586463.5A CN105172292A (en) | 2015-09-15 | 2015-09-15 | Film for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105172292A true CN105172292A (en) | 2015-12-23 |
Family
ID=54894935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510586463.5A Pending CN105172292A (en) | 2015-09-15 | 2015-09-15 | Film for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105172292A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955365A (en) * | 2017-11-24 | 2018-04-24 | 广东聚航新材料研究院有限公司 | The TPU materials and rainbow illusion-colour thin-film sheet being bonded online for rainbow illusion-colour thin-film sheet |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676297A (en) * | 2004-03-29 | 2005-10-05 | 富士胶片株式会社 | Apparatus and method of producing multi-layer film |
| CN1715046A (en) * | 2004-06-29 | 2006-01-04 | 旭硝子株式会社 | Release film for encapsulating semiconductor chips |
| CN1960866A (en) * | 2004-05-27 | 2007-05-09 | 三菱树脂株式会社 | Mold releasing laminated film |
| CN101143501A (en) * | 2007-08-08 | 2008-03-19 | 孙宜祥 | Method for manufacturing multi-layer composite board |
| CN101479327A (en) * | 2006-06-27 | 2009-07-08 | 三井化学株式会社 | Film and mold release film |
| CN101879808A (en) * | 2010-06-22 | 2010-11-10 | 李民 | Bonding method of fluoroplastic layer and polyester layer |
| CN103568448A (en) * | 2013-10-08 | 2014-02-12 | 东莞市雄林新材料科技有限公司 | Hot melt adhesive attached with dry-type PU (polyurethane) on wet-type PU |
| CN103568387A (en) * | 2013-10-08 | 2014-02-12 | 东莞市雄林新材料科技有限公司 | Wet-type PU (polyurethane) thin film attached with TPU (thermoplastic polyurethane) thin film |
| CN103589136A (en) * | 2013-10-08 | 2014-02-19 | 东莞市雄林新材料科技有限公司 | Thermoplastic polyurethane (TPU) inflator pump membrane |
| CN104877151A (en) * | 2015-05-05 | 2015-09-02 | 西北核技术研究所 | Preparation method of PVDF (polyvinylidene fluoride) film and PVDF film |
| WO2015133630A1 (en) * | 2014-03-07 | 2015-09-11 | 旭硝子株式会社 | Mold release film, method for manufacturing same, and method for manufacturing semiconductor package |
-
2015
- 2015-09-15 CN CN201510586463.5A patent/CN105172292A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676297A (en) * | 2004-03-29 | 2005-10-05 | 富士胶片株式会社 | Apparatus and method of producing multi-layer film |
| CN1960866A (en) * | 2004-05-27 | 2007-05-09 | 三菱树脂株式会社 | Mold releasing laminated film |
| CN1715046A (en) * | 2004-06-29 | 2006-01-04 | 旭硝子株式会社 | Release film for encapsulating semiconductor chips |
| CN101479327A (en) * | 2006-06-27 | 2009-07-08 | 三井化学株式会社 | Film and mold release film |
| CN101143501A (en) * | 2007-08-08 | 2008-03-19 | 孙宜祥 | Method for manufacturing multi-layer composite board |
| CN101879808A (en) * | 2010-06-22 | 2010-11-10 | 李民 | Bonding method of fluoroplastic layer and polyester layer |
| CN103568448A (en) * | 2013-10-08 | 2014-02-12 | 东莞市雄林新材料科技有限公司 | Hot melt adhesive attached with dry-type PU (polyurethane) on wet-type PU |
| CN103568387A (en) * | 2013-10-08 | 2014-02-12 | 东莞市雄林新材料科技有限公司 | Wet-type PU (polyurethane) thin film attached with TPU (thermoplastic polyurethane) thin film |
| CN103589136A (en) * | 2013-10-08 | 2014-02-19 | 东莞市雄林新材料科技有限公司 | Thermoplastic polyurethane (TPU) inflator pump membrane |
| WO2015133630A1 (en) * | 2014-03-07 | 2015-09-11 | 旭硝子株式会社 | Mold release film, method for manufacturing same, and method for manufacturing semiconductor package |
| CN104877151A (en) * | 2015-05-05 | 2015-09-02 | 西北核技术研究所 | Preparation method of PVDF (polyvinylidene fluoride) film and PVDF film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955365A (en) * | 2017-11-24 | 2018-04-24 | 广东聚航新材料研究院有限公司 | The TPU materials and rainbow illusion-colour thin-film sheet being bonded online for rainbow illusion-colour thin-film sheet |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151223 |
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| WD01 | Invention patent application deemed withdrawn after publication |