CN110181893A - A kind of leaching membrane paper and preparation method thereof - Google Patents
A kind of leaching membrane paper and preparation method thereof Download PDFInfo
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- CN110181893A CN110181893A CN201910465109.5A CN201910465109A CN110181893A CN 110181893 A CN110181893 A CN 110181893A CN 201910465109 A CN201910465109 A CN 201910465109A CN 110181893 A CN110181893 A CN 110181893A
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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
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
-
- 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
- B32B29/00—Layered products comprising a layer of paper or cardboard
-
- 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
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
-
- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
-
- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/06—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
-
- 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
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- 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
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/07—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The present invention relates to a kind of leaching membrane paper and preparation method thereof, including matrix and the lamination bed of material, the lamination bed of material includes following components in parts by weight: 45-75 parts of trifluoro propyl methyl cyclotrisiloxane；20-30 parts of polyethylene master batch；16-28 parts of nanometer calcium carbonate；6-8 parts of polyethylene wax；2-8 parts of phenyl-vinyl silicon oil；6-8 parts of amylan.Leaching membrane paper in the present invention has better anti-moisture performance and high temperature resistance, while having higher peel strength, has the bigger scope of application.
Description
Technical field
The present invention relates to leaching membrane paper technical fields more particularly to a kind of leaching membrane paper and preparation method thereof.
Background technique
Existing coating processes, which generally use, is added in a thin layer plastics on another plastic film or sheet surface, or
It is more generally useful added on non-plastic substrate such as paper, cellophane or aluminium foil.It can be applied with solution, suspension or melt
It covers.
Leaching membrane paper is exactly the composite material that plastic pellet is coated in paper surface by casting machine, and main feature is exactly this
Composite material can grease proofing, waterproof (opposite), can be with heat seal.Often low density polyethylene (LDPE) is coated on paper, is made it have
Heat sealability, moisture-proof, protection printing are not worn.It is also commonly used on aluminium foil, generates heat sealability and resistance to abrasion, prevents aluminium foil and produces
Condition interaction.Also common PVDC copolymer coating improves barrier and heat sealability.The production of country's leaching membrane paper at present, especially
The technology of moisture resistance and anti-removing is immature, and leaching membrane paper has moisture resistivity difference and is easily peeled off.
Summary of the invention
In view of the deficiency of above-mentioned existing production technology, the present invention provides a kind of leaching membrane paper, moisture resistance to solve existing leaching membrane paper
The problem of performance is poor and the lamination bed of material and base layer are easily peeled off in wet environment.
The invention adopts the following technical scheme:
A kind of leaching membrane paper, including matrix and the lamination bed of material, the lamination bed of material include following components in parts by weight:
45-75 parts of trifluoro propyl methyl cyclotrisiloxane；20-30 parts of polyethylene master batch；16-28 parts of nanometer calcium carbonate；It is poly-
6-8 parts of ethylene waxes；2-8 parts of phenyl-vinyl silicon oil；6-8 parts of amylan.
Preferably, the lamination bed of material further includes following components in parts by weight: 3-5 parts of rosin milk.
It is further preferred that the lamination bed of material includes following components in parts by weight:
61 parts of trifluoro propyl methyl cyclotrisiloxane；27 parts of polyethylene master batch；24 parts of nanometer calcium carbonate；7 parts of polyethylene wax；
5 parts of phenyl-vinyl silicon oil；7 parts of amylan；4 parts of rosin milk.
It is further preferred that the polyethylene master batch is low density polyethylene (LDPE), and melt index is 3-8g/min.
The preparation method of the leaching membrane paper, comprising the following steps:
(1) it stirs, is mixed after taking polyethylene master batch, trifluoro propyl methyl cyclotrisiloxane and nanometer calcium carbonate mixing
Object；
(2) said mixture heating stirring is obtained into fusant to 105-135 DEG C；
(3) polyethylene wax, phenyl-vinyl silicon oil, rosin milk and amylan, stirring are added in above-mentioned fusant；
(4) stirring is until natural cooling, obtains membrane coating material；
(5) by the membrane coating material and matrix respectively by extrusion equipment squeeze out and it is compound, then will be compound after leaching membrane paper
By with the comparable metal crack of leaching membrane paper thickness；
Complete the preparation of leaching membrane paper.
Preferably, the metal crack of the step (5) is that two smooth metal surfaces are arranged in parallel to be formed, the metal
The metallic surface material of crack two sides is copper or copper alloy.
Preferably, the temperature of the metal material of metal crack two sides is 18-26 DEG C, and the length of the metal crack is
80-200cm。
Preferably, step (1) stirring condition are as follows: speed 100-120r/min, time 10-15min.
It is further preferred that the step (2) is heated to 105-135 DEG C with 6-12 DEG C/min heating rate.
It is further preferred that the stirring condition of the step (3): 210-240r/min stirs 10-15min；The step
(4) stirring condition are as follows: stirred with 210-240r/min until naturally cooling to 50-55 DEG C.
The invention has the following advantages:
1, the leaching membrane paper in the present invention has better anti-moisture performance and high temperature resistance, while having higher removing strong
Degree has the bigger scope of application；Production cost is lower simultaneously.
2, whole preparation process step is few in the present invention, and simple process is not need to rely on high-precision end special equipment, can
Production cost is reduced, while process parameter control is accurate in each processing step, the leaching membrane paper prepared has preferable resistance to
Hot property, anti-moisture performance and higher peel strength.
3, rosin and its ester lotion are also known as dispersion rosin size, milky slightly blue light liquid, relative density 1.06.Admittedly containing
48%-50% is measured, 0.1-0.2 μm of partial size, the main composition of rosin is resin acid, and resin acid is rosin solid portion and rosin
Main component, their molecular formula are C20H30O2, for sour, the rosin sheet containing the unitary shuttle there are two double bond with tricyclic phenanthrene skeleton
Body has good water-fast group, therefore water resistance can be improved in rosin milk；Resin acid molecular structures are by double bond and Suo Ji two
Chemical activity center can occur gluing with starch and phenyl-vinyl silicon oil and react, to improve original viscosity；Make lamination simultaneously
Material has certain fragrance, then has better effect used in food pack and similar product.
4, nanometer calcium carbonate is introduced into the toughening effect that glue film itself can be improved in polymer, improves cohesive force, this is
Because nanoparticle has lesser dimensional effect, surface-interface effect, the introducing of nanoparticle can improve the rheology of glue-line
Performance, under the premise of not damaging glue-line bonding force, can reduce to a certain degree glue-line thickness and using glue dosage, save at
This；After polyethylene wax and the cementing conjunction of amylan, high heat resistance outstanding is shown, the thermal level phase with existing membrane coating material
Than the advantage with No overtaking；Trifluoro propyl methyl cyclotrisiloxane is the siloxanes of fluoro, is mainly contained in siloxane molecule
There are Si-O key, bond energy 462KJ/mol, and the bond energy of C-O is 369KJ/mol, the bond energy ratio C-O of Si-O is big, so siloxanes
It is heat-resist；In addition, Si-O bond angle ratio C-O key is big, and silicon atom is bigger than carbon atom, and methyl revolves around Si-O key
Transhipment occupies comparable space when dynamic, and intermolecular gravitation is made to become smaller, and gravitation is small between siloxane molecule, illustrates its cohesive energy
Small, the resistance to bond and cohesive energy of polymer are closely related；And the substance of fluorine silicon generally has superior heat resistance, weatherability,
And fluorine-containing compound has many advantages, such as waterproof, oil resistant and solvent resistant, low-surface-energy, therefore it is more preferable that the film of preparation can be made to have
Heat resistance and anti-moisture performance.
Detailed description of the invention
Fig. 1 is the schematic diagram of preparation method in the present invention；
Fig. 2 is the schematic diagram of leaching membrane paper in the present invention；
Fig. 3 is the schematic diagram of leaching membrane paper in the present invention；
In figure: 1- matrix；2- membrane coating material；3- leaching membrane paper；4- metal crack.
Specific embodiment
Combined with specific embodiments below, further details of elaboration is made to the present invention, but embodiments of the present invention are not
It is confined to the range of embodiment expression.These embodiments are merely to illustrate the present invention, range and is not intended to limit the present invention.
Embodiment 1
A kind of leaching membrane paper, including matrix and the lamination bed of material, described matrix are brown paper, the lamination bed of material includes following heavy
Measure the material of part:
45 parts of trifluoro propyl methyl cyclotrisiloxane；30 parts of polyethylene master batch；16 parts of nanometer calcium carbonate；6 parts of polyethylene wax；
8 parts of phenyl-vinyl silicon oil；6 parts of amylan；3 parts of rosin milk.
Embodiment 2
A kind of leaching membrane paper, including matrix and the lamination bed of material, described matrix are wood pulp paper, the lamination bed of material includes following heavy
Measure the material of part:
75 parts of trifluoro propyl methyl cyclotrisiloxane；20 parts of polyethylene master batch；28 parts of nanometer calcium carbonate；8 parts of polyethylene wax；
2 parts of phenyl-vinyl silicon oil；8 parts of amylan；5 parts of rosin milk.
Embodiment 3
A kind of leaching membrane paper, including matrix and the lamination bed of material, described matrix are waxed paper, the lamination bed of material includes following heavy
Measure the material of part:
61 parts of trifluoro propyl methyl cyclotrisiloxane；27 parts of low density polyethylene (LDPE) masterbatch；24 parts of nanometer calcium carbonate；Poly- second
7 parts of alkene wax；5 parts of phenyl-vinyl silicon oil；7 parts of amylan；4 parts of rosin milk.
Comparative example 1
A kind of leaching membrane paper, including matrix and the lamination bed of material, described matrix are waxed paper, the lamination bed of material includes following heavy
Measure the material of part:
61 parts of trifluoro propyl methyl cyclotrisiloxane；27 parts of low density polyethylene (LDPE) masterbatch；24 parts of nanometer calcium carbonate；Poly- second
7 parts of alkene wax；5 parts of phenyl-vinyl silicon oil.
Comparative example 2
A kind of leaching membrane paper, including matrix and the lamination bed of material, described matrix are waxed paper, the lamination bed of material includes following heavy
Measure the material of part:
61 parts of trifluoro propyl methyl cyclotrisiloxane；27 parts of low density polyethylene (LDPE) masterbatch；24 parts of nanometer calcium carbonate；Poly- second
7 parts of alkene wax；5 parts of phenyl-vinyl silicon oil；7 parts of amylan.
Comparative example 3
A kind of leaching membrane paper, including matrix and the lamination bed of material, described matrix are waxed paper, the lamination bed of material includes following heavy
Measure the material of part:
61 parts of trifluoro propyl methyl cyclotrisiloxane；27 parts of low density polyethylene (LDPE) masterbatch；24 parts of nanometer calcium carbonate；Poly- second
7 parts of alkene wax；5 parts of phenyl-vinyl silicon oil；4 parts of rosin milk.
Leaching paper in above-described embodiment, comparative example is tested, while also having selected two common on the market brands
Leaching membrane paper compare, measure the removing heat resisting temperature and peel strength of leaching membrane paper, test result such as the following table 1:
Table 1
Compared by experiment, it is found that under the same conditions, exfoliation temperature is than existing leaching for the leaching membrane paper in the present invention
Film paper has better heat resistance, meanwhile, under the same conditions, the peel strength of the leaching membrane paper in the present invention is existing leaching
2-3 times of film paper；In above-described embodiment, embodiment 3 uses low density polyethylene (LDPE) masterbatch, from the point of view of test result, embodiment 3
In removing bearing temperature it is higher compared with embodiment 1 and embodiment 2, while peel strength is more than embodiment 1 and embodiment 2
Height, experiments have shown that when preparing leaching membrane paper, low density polyethylene (LDPE) is more more excellent than the performance of high density polyethylene (HDPE)；1 He of comparative example
Not including amylan in comparative example 3, other components are identical, by measurement, comparative example 1 and comparative example 3 without containing amylan
Exfoliation temperature than embodiment 3 it is low go out a grade, peel strength also it is lower than embodiment 3 go out a grade, it is seen that amylan
Addition can be improved the exfoliation temperature and peel strength of membrane coating material, even if membrane coating material is able to bear higher temperature and outer masterpiece
With.
Rosin milk is not included in comparative example 1 and comparative example 2, other components are identical, by measurement, without containing rosin cream
The exfoliation temperature of the comparative example 1 of liquid and comparative example 2 than embodiment 3 it is low go out a grade, peel strength also it is lower than embodiment 3 go out
One grade, it is seen that the addition of rosin milk can be improved the exfoliation temperature and peel strength of membrane coating material, even if membrane coating material can
Bear higher temperature and external force.Rosin milk resin acid molecular structures by two chemical activity centers of double bond and Suo Ji,
Gluing can occur with starch and phenyl-vinyl silicon oil to react, to improve original viscosity；Make membrane coating material that there is certain virtue simultaneously
Fragrance road then has better effect used in food pack and similar product.
The matrix of leaching membrane paper in the present invention can also be the other materials such as wrapping paper, brown paper, non-woven fabrics, aluminizer,
Suitable for corresponding purposes.
Meanwhile under the conditions of identical temperature, the humidity of environment, observation removing situation is continuously improved, and recorded with hygrometer
Humidity when removing, as a result such as the following table 2:
Table 2
Yunnan Innovation New Materials Co., Ltd. is the leaching of Yunnan Innovation New Materials Co., Ltd.'s production in test
Coating materials, Gold East Paper (Jiangsu) Co., Ltd. are the membrane coating material of Gold East Paper's production.
The present invention known to table 2 has better moisture resistance compared with existing leaching membrane paper.
The preparation method of the leaching membrane paper, comprising the following steps:
(1) it stirs, is mixed after taking polyethylene master batch, trifluoro propyl methyl cyclotrisiloxane and nanometer calcium carbonate mixing
Object；
(2) said mixture heating stirring is obtained into fusant to 115 DEG C；
(3) polyethylene wax, phenyl-vinyl silicon oil, rosin milk and amylan, stirring are added in above-mentioned fusant；
(4) stirring is until natural cooling, obtains membrane coating material；
(5) by the membrane coating material and matrix respectively by extrusion equipment squeeze out and it is compound, then will be compound after leaching membrane paper
By with the comparable metal crack of leaching membrane paper thickness；
Complete the preparation of leaching membrane paper.
Preferably, the metal crack of the step (5) is that two smooth metal surfaces are arranged in parallel to be formed, the metal
The metallic surface material of crack two sides is copper or copper alloy.
Preferably, the temperature of the metal material of metal crack two sides is 22 DEG C, and the length of the metal crack is
120cm。
Preferably, step (1) stirring condition are as follows: speed 110r/min, time 12min.
It is further preferred that the step (2) is heated to 115 DEG C with 8 DEG C/min heating rate.
It is further preferred that the stirring condition of the step (3): 220r/min stirs 12min；Step (4) are stirred
Mix condition are as follows: stirred with 230r/min until naturally cooling to 53 DEG C.
As shown in Fig. 1, by the membrane coating material 2 and matrix 1 respectively by extrusion equipment squeeze out and it is compound, then will be compound
Leaching membrane paper 3 afterwards by with the comparable metal crack 4 of leaching membrane paper thickness.
In above-mentioned preparation process, preferred molten index is the polyethylene master batch of 5g/min, due to the melting of polyethylene master batch
Index is lower, and mobility is poor, to enable the nanometer calcium carbonate in the present invention equal using the low characteristic of its mobility
The even each space for being distributed in molten material, the problem of nano-calcium carbonate doped calcium can be effectively prevent；To solid-state in step (1)
Or granular material is needed to be carried out rotation using relatively low revolving speed and is stirred when being mixed, if revolving speed is excessively high,
It will lead to materials from spattering, waste of material gently then occur, seriously then cause proportion larger difference occur, and be easy to operator
Bring body harm, it is also possible to cause production accident；Heating process in step (2) must use constant temperature rise speed, former
Because being powder explosion to be easy to appear, due to the heat resistance of different material if material is put into the higher environment of temperature suddenly
Can be different, therefore heated using constant temperature rise speed from room temperature, this process not only makes various materials heated equal
It is even, moreover it is possible to avoid the danger even exploded of splashing, specific in the present invention, on the one hand be reached using the temperature rise speed of 8 DEG C/min
Above-mentioned requirements, heating process is also shorter, can be improved production efficiency, shortens non-cutting time between processing step；Step
(3) the case where for the material for guaranteeing different densities being not in layering in, it is necessary to it is stirred using higher rotation speed, and this
When material be molten condition, therefore mixing speed improves the uniformity for facilitating material, prevents nanometer calcium carbonate from sinking to the bottom, due to
It joined polyethylene wax, phenyl-vinyl silicon oil, rosin milk and amylan, only quickly stirring can just stir evenly；Step
(4) main purpose is natural cooling, but needs the stirring action with same rotational speed or frequency, guarantees molten condition material
The uniformity of inside and outside cooling prevents cooling layering, can also be to avoid the layering of material layering, especially nanometer calcium carbonate；Step
(5) by the leaching membrane paper 3 after will be compound by with the comparable metal crack 4 of leaching membrane paper thickness, one side metal crack 4 can be to lamination
Paper 3 carries out smooth rubbing action, so that the lamination bed of material of leaching membrane paper 3 is more smooth, while metal crack 4 is taken away rapidly
Heat on leaching membrane paper 3, plays the role of stable 3 form of leaching membrane paper, and leaching membrane paper 3 continues through metal clip after losing heat
When stitching 4, leaching membrane paper becomes smooth and endures with all one's will, and the leaching membrane paper 3 exported from metal crack 4 can be directly packaged in rolls,
And when traditional fabrication leaching membrane paper, it is also necessary to which dedicated drying equipment is by being dried the method for leaching membrane paper surface air blast, drum
Dry meeting is air-dried so that still also the membrane coating material with certain fluidity continues to flow in high temperature, thus the lamination on leaching membrane paper surface
There is non-uniform phenomenon in material, influences the final product quality of leaching membrane paper, and the preparation method in the present invention then completely avoids this problem,
Dedicated cooling equipment is also eliminated simultaneously, production technology is simplified, reduces production cost.
The material of metal crack can select the smooth metal material of good heat-transfer and surface, such as copper or copper alloy,
Silver or silver alloy, stainless steel etc., simultaneously because the heat content of matrix and the lamination bed of material is different after compound, it can also be by crack
Different metal materials is selected in two sides, is subject to satisfaction to matrix and lamination bed of material Homogeneouslly-radiating, can further save material in this way
Expect cost；Wherein, it is metal material that the metal of metal crack two sides, which at least needs two surfaces, can be other perfect heat-dissipatings
Material and metal material carry out compound, such as metal material and marble were wrapped and compound are similarly able to satisfy the present invention
Purpose, it is only necessary to the metal material of two sides is arranged in parallel.
To guarantee radiating efficiency and heat dissipation effect, the dimension of the metal material of metal crack two sides is preferably 18-26 DEG C,
Metal crack nearby answers air circulation simultaneously, and it is more preferable to be equipped with flow of secondary air equipment.
Claims (10)
1. a kind of leaching membrane paper, including matrix and the lamination bed of material, which is characterized in that the lamination bed of material includes in parts by weight
Following components:
45-75 parts of trifluoro propyl methyl cyclotrisiloxane；20-30 parts of polyethylene master batch；16-28 parts of nanometer calcium carbonate；Polyethylene
6-8 parts of wax；2-8 parts of phenyl-vinyl silicon oil；6-8 parts of amylan.
2. leaching membrane paper according to claim 1, which is characterized in that the lamination bed of material further include in parts by weight with
Lower component: 3-5 parts of rosin milk.
3. leaching membrane paper according to claim 2, which is characterized in that the lamination bed of material includes in parts by weight following
Component:
61 parts of trifluoro propyl methyl cyclotrisiloxane；27 parts of polyethylene master batch；24 parts of nanometer calcium carbonate；7 parts of polyethylene wax；Benzene
5 parts of base vinyl silicone oil；7 parts of amylan；4 parts of rosin milk.
4. leaching membrane paper according to claim 1 or 2 or 3, which is characterized in that the polyethylene master batch is low density polyethylene
Alkene, melt index 3-8g/min.
5. the preparation method of leaching membrane paper described in claim 1-4 any one, which comprises the following steps:
(1) it is stirred after polyethylene master batch, trifluoro propyl methyl cyclotrisiloxane and nanometer calcium carbonate mixing, obtains mixture；
(2) mixture heating stirring is obtained into fusant to 105-135 DEG C；
(3) polyethylene wax, phenyl-vinyl silicon oil, rosin milk and amylan, stirring are added in above-mentioned fusant；
(4) stirring is until natural cooling, obtains membrane coating material；
(5) by the membrane coating material and matrix respectively by extrusion equipment squeeze out and it is compound, then will be compound after leaching membrane paper pass through
Metal crack squeezes out；
Complete the preparation of leaching membrane paper.
6. according to the method described in claim 5, it is characterized in that, the metal crack of the step (5) is two smooth gold
Metal surface is arranged in parallel to be formed, and the metallic surface material of metal crack two sides is copper or copper alloy.
7. according to the method described in claim 6, it is characterized in that, the temperature of the metal material of metal crack two sides is
18-26 DEG C, the length of the metal crack is 80-200cm.
8. according to the method described in claim 5, it is characterized in that, the step (1) stirring condition are as follows: speed 100-120r/
Min, time 10-15min.
9. according to the method described in claim 5, it is characterized in that, the step (2) is with the heating of 6-12 DEG C/min heating rate
To 105-135 DEG C.
10. according to the method described in claim 5, it is characterized in that, the stirring condition of the step (3) are as follows: 210-240r/
Min stirs 10-15min；The stirring condition of the step (4) are as follows: stirred with 210-240r/min until naturally cooling to 50-55
℃。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578268A (en) * | 2019-09-24 | 2019-12-17 | 南京德恒纸业有限公司 | industrial laminating paper and preparation process thereof |
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