CN105522798A - High-temperature-resistant compound release film and producing method thereof - Google Patents
High-temperature-resistant compound release film and producing method thereof Download PDFInfo
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- 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
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
-
- 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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- 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
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- 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
- B32B7/10—Interconnection of layers at least one layer having inter-reactive 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
- 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
-
- 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
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
Abstract
The present invention discloses a high-temperature-resistant compound release film comprising a five-layer co-extruded structure, the five-layer co-extruded structure successively comprises a film layer, a first adhesive layer, a nylon reinforcing layer, a second adhesive layer and a printed layer, the first adhesive layer and the second adhesive layer are maleic-anhydride-grafted polypropylene layers, the printed film is a co-extruded film layer, and the film layer comprises the following starting materials by weight: polyimide, low-density polyethylene plastic particles, methyl methacrylate, butyl acrylate, natural rubber, a crosslinking agent, release-agent solvent-type silicone oil, a stabilizer, a catalyst, octadecyl methacrylate, a defoamer and a thickener. The components used in the thin film layer material are non-toxic and environmentally friendly, a preparation method is simple, easy in operation, mild in conditions and more suitable for industrial production, when the high-temperature-resistant compound release film is applied to asphalt at 180 DEG C for 5min, the high-temperature-resistant compound release film is not burnt, the shrinkage rate is less than or equal to 1%, the high-temperature-resistant compound release film is non-deformation and free of edge warping, has high-temperature-resistant properties, and the tensile strength of products of the high-temperature-resistant compound release film may be improved to more than 150% of original tensile strength.
Description
Technical field
The present invention relates to new film field of material technology, specifically a kind of high temperature resistant compound mould release membrance and preparation method thereof.
Background technology
Mould release membrance, also known as stripping film, barrier film, diffusion barrier, adhesive block film, fractal film, film, plastic sheeting, cover pore membrane, silicon oil membrane, silicone oil paper, antiadhesion barrier, skidding film, that paper of sky, release liners, under normal circumstances in order to increase the off-type force of plastic sheeting, plastic sheeting can be done plasma treatment, or be coated with fluorine process, or be coated with silicon mould release on the top layer of film material, as PET, PE, OPP, etc.; Allow it can show extremely light and stable off-type force for various different organic pressure sensitive adhesive (pressure sensitive adhesive as hot melt adhesive, acrylic glue and rubber series).
Because mould release membrance has isolation, fills, protects, is easy to the advantages such as stripping, be therefore widely used in the fields such as various electronics, communication, machinery.
Along with the progress of Development of Human Civilization and science and technology, increasing electronic product is used to the every field of society, and the external strategic shift of electronics industry to China and the fast development of home communications and electronic industry, make semicon industry be in gold developing period, also will drive developing rapidly of its subsidiary industrial chain simultaneously.When manufacturing printed circuit board (PCB), naughty porcelain electronic unit, thermoset resin article, decorative panel etc., mould release membrance makes again mold release film often be sandwiched in operation between metallic plate, or use between resin, to avoid the bonding between metallic plate or between resin, and these techniques all need to complete under certain hot conditions.And its heat-resisting quantity of mould release membrance conventional is at present lower, and the unicity mould release membrance of routine its performance usual can not meet the requirement of producing increasingly stringent above.
Summary of the invention
High temperature resistant compound mould release membrance that the object of the present invention is to provide a kind of environment-protecting asepsis, cost low and preparation method thereof, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of high temperature resistant compound mould release membrance, described compound mould release membrance comprises five-layer co-squeezing Rotating fields, described five-layer co-squeezing Rotating fields is followed successively by thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, described first adhesive phase and the second adhesive phase are maleic anhydride grafting polypropylene layer, and printed layers is mixing co-extrusion rete; Described thin layer comprises according to the raw material of weight portion: polyimides 30-50 part, LDPE: Low-density polyethylene plastics particle 30-50 part, methyl methacrylate 15-20 part, butyl acrylate 10-15 part, natural emulsion 5-10 part, crosslinking agent 5-10 part, interleaving agent solvent-borne type silicone oil 3-5 part, stabilizing agent 2-4 part, catalyst 2-4 part, methacrylic acid octadecyl 1-2 part, defoamer 0.3-0.5 part, thickener 0.3-0.5 part.
As the further scheme of the present invention: described thin layer comprises according to the raw material of weight portion: polyimides 35-45 part, LDPE: Low-density polyethylene plastics particle 35-45 part, methyl methacrylate 16-19 part, butyl acrylate 11-14 part, natural emulsion 6-9 part, crosslinking agent 6-9 part, interleaving agent solvent-borne type silicone oil 3.5-4.5 part, stabilizing agent 2.5-3.5 part, catalyst 2.5-3.5 part, methacrylic acid octadecyl 1.2-1.8 part, defoamer 0.35-0.45 part, thickener 0.35-0.45 part.
As the further scheme of the present invention: described thin layer comprises according to the raw material of weight portion: polyimides 40 parts, 40 parts, LDPE: Low-density polyethylene plastics particle, methyl methacrylate 18 parts, butyl acrylate 12 parts, natural emulsion 8 parts, crosslinking agent 8 parts, interleaving agent solvent-borne type silicone oil 4 parts, stabilizing agent 3 parts, catalyst 3 parts, methacrylic acid octadecyl 1.5 parts, defoamer 0.4 part, thickener 0.4 part.
As the present invention's further scheme: described thickener is methyl hydroxyethylcellulose.
The preparation method of described high temperature resistant compound mould release membrance, concrete steps are as follows:
(1) each raw material is taken according to weight portion;
(2) under nitrogen protection, stir after LDPE: Low-density polyethylene plastics particle, methyl methacrylate, butyl acrylate and methacrylic acid octadecyl are mixed, and then add interleaving agent solvent-borne type silicone oil, stirring at room temperature 40-60min, then polyimide particles is added, then 70-90 DEG C is heated to, stir 3-5h, then temperature reduces 30-50 DEG C, add natural emulsion, crosslinking agent, stabilizing agent, catalyst, defoamer and thickener, continue to stir 40-60min, be finally cooled to room temperature and namely obtain thin layer raw material;
(3) be the proportional arrangement of 2.5-3:1:1.8-2.2:0.9-1.1:2.5-3 according to the weight ratio of the raw material of thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, first adhesive phase and the second adhesive phase raw material adopt maleic anhydride grafting polypropylene, nylon enhancement layer raw material adopts and extrudes special PA6, printed layers raw material adopts the mixture of LLDPE and homopolymerization PP, and its mixing quality is than being PP:LLDPE=10:5.5-6.5;
(4) described five layers of raw material are stirred respectively;
(5) described five layers of raw material are put into five-layer co-squeezing bottom blow respectively and blow out high temperature resistant compound mould release membrance;
(6) last volume inspection.
Compared with prior art, the invention has the beneficial effects as follows:
Film layer material of the present invention component environment-protecting asepsis used, simple, the easy operation of its preparation method, mild condition, be more suitable for suitability for industrialized production, 180 DEG C, under 5min condition, apply on pitch and do not scald film, shrinkage factor≤1%, indeformable, not alice, has resistance to elevated temperatures, and the hot strength of its product can mention original more than 150%.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Embodiment 1
A kind of high temperature resistant compound mould release membrance, described compound mould release membrance comprises five-layer co-squeezing Rotating fields, described five-layer co-squeezing Rotating fields is followed successively by thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, described first adhesive phase and the second adhesive phase are maleic anhydride grafting polypropylene layer, and printed layers is mixing co-extrusion rete; Described thin layer comprises according to the raw material of weight portion: polyimides 30 parts, 30 parts, LDPE: Low-density polyethylene plastics particle, methyl methacrylate 15 parts, butyl acrylate 10 parts, natural emulsion 5 parts, crosslinking agent 5 parts, interleaving agent solvent-borne type silicone oil 3 parts, stabilizing agent 2 parts, catalyst 2 parts, methacrylic acid octadecyl 1 part, defoamer 0.3 part, methyl hydroxyethylcellulose 0.3 part.
The preparation method of described high temperature resistant compound mould release membrance, concrete steps are as follows:
(1) each raw material is taken according to weight portion;
(2) under nitrogen protection, stir after LDPE: Low-density polyethylene plastics particle, methyl methacrylate, butyl acrylate and methacrylic acid octadecyl are mixed, and then add interleaving agent solvent-borne type silicone oil, stirring at room temperature 40min, then polyimide particles is added, then 70 DEG C are heated to, stir 3h, then temperature reduces by 30 DEG C, add natural emulsion, crosslinking agent, stabilizing agent, catalyst, defoamer and methyl hydroxyethylcellulose, continue to stir 40min, be finally cooled to room temperature and namely obtain thin layer raw material;
(3) be the proportional arrangement of 2.5:1:1.8:0.9:2.5 according to the weight ratio of the raw material of thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, first adhesive phase and the second adhesive phase raw material adopt maleic anhydride grafting polypropylene, nylon enhancement layer raw material adopts and extrudes special PA6, printed layers raw material adopts the mixture of LLDPE and homopolymerization PP, and its mixing quality is than being PP:LLDPE=10:5.5;
(4) described five layers of raw material are stirred respectively;
(5) described five layers of raw material are put into five-layer co-squeezing bottom blow respectively and blow out high temperature resistant compound mould release membrance;
(6) last volume inspection.
Embodiment 2
A kind of high temperature resistant compound mould release membrance, described compound mould release membrance comprises five-layer co-squeezing Rotating fields, described five-layer co-squeezing Rotating fields is followed successively by thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, described first adhesive phase and the second adhesive phase are maleic anhydride grafting polypropylene layer, and printed layers is mixing co-extrusion rete; Described thin layer comprises according to the raw material of weight portion: polyimides 35-45 part, 35 parts, LDPE: Low-density polyethylene plastics particle, methyl methacrylate 16 parts, butyl acrylate 11 parts, natural emulsion 6 parts, crosslinking agent 6 parts, interleaving agent solvent-borne type silicone oil 3.5 parts, stabilizing agent 2.5 parts, catalyst 2.5 parts, methacrylic acid octadecyl 1.2 parts, defoamer 0.35 part, methyl hydroxyethylcellulose 0.35 part.
The preparation method of described high temperature resistant compound mould release membrance, concrete steps are as follows:
(1) each raw material is taken according to weight portion;
(2) under nitrogen protection, stir after LDPE: Low-density polyethylene plastics particle, methyl methacrylate, butyl acrylate and methacrylic acid octadecyl are mixed, and then add interleaving agent solvent-borne type silicone oil, stirring at room temperature 45min, then polyimide particles is added, then 75 DEG C are heated to, stir 3.5h, then temperature reduces by 35 DEG C, add natural emulsion, crosslinking agent, stabilizing agent, catalyst, defoamer and methyl hydroxyethylcellulose, continue to stir 45min, be finally cooled to room temperature and namely obtain thin layer raw material;
(3) be the proportional arrangement of 2.6:1:1.9:0.95:2.6 according to the weight ratio of the raw material of thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, first adhesive phase and the second adhesive phase raw material adopt maleic anhydride grafting polypropylene, nylon enhancement layer raw material adopts and extrudes special PA6, printed layers raw material adopts the mixture of LLDPE and homopolymerization PP, and its mixing quality is than being PP:LLDPE=10:5.8;
(4) described five layers of raw material are stirred respectively;
(5) described five layers of raw material are put into five-layer co-squeezing bottom blow respectively and blow out high temperature resistant compound mould release membrance;
(6) last volume inspection.
Embodiment 3
A kind of high temperature resistant compound mould release membrance, described compound mould release membrance comprises five-layer co-squeezing Rotating fields, described five-layer co-squeezing Rotating fields is followed successively by thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, described first adhesive phase and the second adhesive phase are maleic anhydride grafting polypropylene layer, and printed layers is mixing co-extrusion rete; Described thin layer comprises according to the raw material of weight portion: polyimides 40 parts, 40 parts, LDPE: Low-density polyethylene plastics particle, methyl methacrylate 18 parts, butyl acrylate 12 parts, natural emulsion 8 parts, crosslinking agent 8 parts, interleaving agent solvent-borne type silicone oil 4 parts, stabilizing agent 3 parts, catalyst 3 parts, methacrylic acid octadecyl 1.5 parts, defoamer 0.4 part, methyl hydroxyethylcellulose 0.4 part.
The preparation method of described high temperature resistant compound mould release membrance, concrete steps are as follows:
(1) each raw material is taken according to weight portion;
(2) under nitrogen protection, stir after LDPE: Low-density polyethylene plastics particle, methyl methacrylate, butyl acrylate and methacrylic acid octadecyl are mixed, and then add interleaving agent solvent-borne type silicone oil, stirring at room temperature 50min, then polyimide particles is added, then 80 DEG C are heated to, stir 4h, then temperature reduces by 40 DEG C, add natural emulsion, crosslinking agent, stabilizing agent, catalyst, defoamer and methyl hydroxyethylcellulose, continue to stir 50min, be finally cooled to room temperature and namely obtain thin layer raw material;
(3) be the proportional arrangement of 2.8:1:2:1:2.8 according to the weight ratio of the raw material of thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, first adhesive phase and the second adhesive phase raw material adopt maleic anhydride grafting polypropylene, nylon enhancement layer raw material adopts and extrudes special PA6, printed layers raw material adopts the mixture of LLDPE and homopolymerization PP, and its mixing quality is than being PP:LLDPE=5:3;
(4) described five layers of raw material are stirred respectively;
(5) described five layers of raw material are put into five-layer co-squeezing bottom blow respectively and blow out high temperature resistant compound mould release membrance;
(6) last volume inspection.
Embodiment 4
A kind of high temperature resistant compound mould release membrance, described compound mould release membrance comprises five-layer co-squeezing Rotating fields, described five-layer co-squeezing Rotating fields is followed successively by thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, described first adhesive phase and the second adhesive phase are maleic anhydride grafting polypropylene layer, and printed layers is mixing co-extrusion rete; Described thin layer comprises according to the raw material of weight portion: polyimides 45 parts, 45 parts, LDPE: Low-density polyethylene plastics particle, methyl methacrylate 19 parts, butyl acrylate 14 parts, natural emulsion 9 parts, crosslinking agent 9 parts, interleaving agent solvent-borne type silicone oil 4.5 parts, stabilizing agent 3.5 parts, catalyst 3.5 parts, methacrylic acid octadecyl 1.8 parts, defoamer 0.45 part, methyl hydroxyethylcellulose 0.45 part.
The preparation method of described high temperature resistant compound mould release membrance, concrete steps are as follows:
(1) each raw material is taken according to weight portion;
(2) under nitrogen protection, stir after LDPE: Low-density polyethylene plastics particle, methyl methacrylate, butyl acrylate and methacrylic acid octadecyl are mixed, and then add interleaving agent solvent-borne type silicone oil, stirring at room temperature 55min, then polyimide particles is added, then 85 DEG C are heated to, stir 4.5h, then temperature reduces by 45 DEG C, add natural emulsion, crosslinking agent, stabilizing agent, catalyst, defoamer and methyl hydroxyethylcellulose, continue to stir 55min, be finally cooled to room temperature and namely obtain thin layer raw material;
(3) be the proportional arrangement of 2.9:1:2.1:1.05:2.9 according to the weight ratio of the raw material of thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, first adhesive phase and the second adhesive phase raw material adopt maleic anhydride grafting polypropylene, nylon enhancement layer raw material adopts and extrudes special PA6, printed layers raw material adopts the mixture of LLDPE and homopolymerization PP, and its mixing quality is than being PP:LLDPE=10:6.2;
(4) described five layers of raw material are stirred respectively;
(5) described five layers of raw material are put into five-layer co-squeezing bottom blow respectively and blow out high temperature resistant compound mould release membrance;
(6) last volume inspection.
Embodiment 5
A kind of high temperature resistant compound mould release membrance, described compound mould release membrance comprises five-layer co-squeezing Rotating fields, described five-layer co-squeezing Rotating fields is followed successively by thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, described first adhesive phase and the second adhesive phase are maleic anhydride grafting polypropylene layer, and printed layers is mixing co-extrusion rete; Described thin layer comprises according to the raw material of weight portion: polyimides 50 parts, 50 parts, LDPE: Low-density polyethylene plastics particle, methyl methacrylate 20 parts, butyl acrylate 15 parts, natural emulsion 10 parts, crosslinking agent 10 parts, interleaving agent solvent-borne type silicone oil 5 parts, stabilizing agent 4 parts, catalyst 4 parts, methacrylic acid octadecyl 2 parts, defoamer 0.5 part, methyl hydroxyethylcellulose 0.5 part.
The preparation method of described high temperature resistant compound mould release membrance, concrete steps are as follows:
(1) each raw material is taken according to weight portion;
(2) under nitrogen protection, stir after LDPE: Low-density polyethylene plastics particle, methyl methacrylate, butyl acrylate and methacrylic acid octadecyl are mixed, and then add interleaving agent solvent-borne type silicone oil, stirring at room temperature 60min, then polyimide particles is added, then 90 DEG C are heated to, stir 5h, then temperature reduces by 50 DEG C, add natural emulsion, crosslinking agent, stabilizing agent, catalyst, defoamer and methyl hydroxyethylcellulose, continue to stir 60min, be finally cooled to room temperature and namely obtain thin layer raw material;
(3) be the proportional arrangement of 3:1:2.2:1.1:3 according to the weight ratio of the raw material of thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, first adhesive phase and the second adhesive phase raw material adopt maleic anhydride grafting polypropylene, nylon enhancement layer raw material adopts and extrudes special PA6, printed layers raw material adopts the mixture of LLDPE and homopolymerization PP, and its mixing quality is than being PP:LLDPE=10:6.5;
(4) described five layers of raw material are stirred respectively;
(5) described five layers of raw material are put into five-layer co-squeezing bottom blow respectively and blow out high temperature resistant compound mould release membrance;
(6) last volume inspection.
Film layer material of the present invention component environment-protecting asepsis used, simple, the easy operation of its preparation method, mild condition, be more suitable for suitability for industrialized production, 180 DEG C, under 5min condition, apply on pitch and do not scald film, shrinkage factor≤1%, indeformable, not alice, has resistance to elevated temperatures, and the hot strength of its product can mention original more than 150%.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (5)
1. a high temperature resistant compound mould release membrance, it is characterized in that, described compound mould release membrance comprises five-layer co-squeezing Rotating fields, described five-layer co-squeezing Rotating fields is followed successively by thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, described first adhesive phase and the second adhesive phase are maleic anhydride grafting polypropylene layer, and printed layers is mixing co-extrusion rete; Described thin layer comprises according to the raw material of weight portion: polyimides 30-50 part, LDPE: Low-density polyethylene plastics particle 30-50 part, methyl methacrylate 15-20 part, butyl acrylate 10-15 part, natural emulsion 5-10 part, crosslinking agent 5-10 part, interleaving agent solvent-borne type silicone oil 3-5 part, stabilizing agent 2-4 part, catalyst 2-4 part, methacrylic acid octadecyl 1-2 part, defoamer 0.3-0.5 part, thickener 0.3-0.5 part.
2. high temperature resistant compound mould release membrance according to claim 1, it is characterized in that, described thin layer comprises according to the raw material of weight portion: polyimides 35-45 part, LDPE: Low-density polyethylene plastics particle 35-45 part, methyl methacrylate 16-19 part, butyl acrylate 11-14 part, natural emulsion 6-9 part, crosslinking agent 6-9 part, interleaving agent solvent-borne type silicone oil 3.5-4.5 part, stabilizing agent 2.5-3.5 part, catalyst 2.5-3.5 part, methacrylic acid octadecyl 1.2-1.8 part, defoamer 0.35-0.45 part, thickener 0.35-0.45 part.
3. high temperature resistant compound mould release membrance according to claim 1, it is characterized in that, described thin layer comprises according to the raw material of weight portion: polyimides 40 parts, 40 parts, LDPE: Low-density polyethylene plastics particle, methyl methacrylate 18 parts, butyl acrylate 12 parts, natural emulsion 8 parts, crosslinking agent 8 parts, interleaving agent solvent-borne type silicone oil 4 parts, stabilizing agent 3 parts, catalyst 3 parts, methacrylic acid octadecyl 1.5 parts, defoamer 0.4 part, thickener 0.4 part.
4., according to the arbitrary described high temperature resistant compound mould release membrance of claim 1-2, it is characterized in that, described thickener is methyl hydroxyethylcellulose.
5. a preparation method for the high temperature resistant compound mould release membrance as described in as arbitrary in claim 1-2, it is characterized in that, concrete steps are as follows:
(1) each raw material is taken according to weight portion;
(2) under nitrogen protection, stir after LDPE: Low-density polyethylene plastics particle, methyl methacrylate, butyl acrylate and methacrylic acid octadecyl are mixed, and then add interleaving agent solvent-borne type silicone oil, stirring at room temperature 40-60min, then polyimide particles is added, then 70-90 DEG C is heated to, stir 3-5h, then temperature reduces 30-50 DEG C, add natural emulsion, crosslinking agent, stabilizing agent, catalyst, defoamer and thickener, continue to stir 40-60min, be finally cooled to room temperature and namely obtain thin layer raw material;
(3) be the proportional arrangement of 2.5-3:1:1.8-2.2:0.9-1.1:2.5-3 according to the weight ratio of the raw material of thin layer, the first adhesive phase, nylon enhancement layer, the second adhesive phase and printed layers, first adhesive phase and the second adhesive phase raw material adopt maleic anhydride grafting polypropylene, nylon enhancement layer raw material adopts and extrudes special PA6, printed layers raw material adopts the mixture of LLDPE and homopolymerization PP, and its mixing quality is than being PP:LLDPE=10:5.5-6.5;
(4) described five layers of raw material are stirred respectively;
(5) described five layers of raw material are put into five-layer co-squeezing bottom blow respectively and blow out high temperature resistant compound mould release membrance;
(6) last volume inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610002698.XA CN105522798A (en) | 2016-01-06 | 2016-01-06 | High-temperature-resistant compound release film and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610002698.XA CN105522798A (en) | 2016-01-06 | 2016-01-06 | High-temperature-resistant compound release film and producing method thereof |
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| CN109278389A (en) * | 2018-09-30 | 2019-01-29 | 安徽国风塑业股份有限公司 | One kind is exempted to be coated with Biaxially oriented polypropylene cold seal basement membrane and preparation method thereof |
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| CN109278389A (en) * | 2018-09-30 | 2019-01-29 | 安徽国风塑业股份有限公司 | One kind is exempted to be coated with Biaxially oriented polypropylene cold seal basement membrane and preparation method thereof |
| CN109278389B (en) * | 2018-09-30 | 2020-12-08 | 安徽国风塑业股份有限公司 | Coating-free biaxially oriented polypropylene cold seal base film and preparation method thereof |
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Application publication date: 20160427 |