TW201122036A - Process for waterproof, moisture transmissive and oxygen permeable thin film. - Google Patents

Abstract

An objective of the invention is to disclose a process for a waterproof, moisture transmissive and oxygen permeable thin film, which utilizes soaked elastic bodies, TPX and polyolefin grafted maleic anhydride or polyolefin grafted acrylic acid or ionic compound granular or powdered resin raw material, blending the raw materials by a blending step to produce a blended plastic material. The blended plastic material is then dehumidified and dried, and the plastic grains are produced as the waterproof, moisture transmissive and oxygen permeable thin film through a processing step.

Description

201122036 VI. Description of the Invention: [Technical Field] The present invention relates to a process for waterproofing and moisture permeable oxygen permeable film, in particular, 穣 using resin plastic granules by melt-kneading, cooling, drying and molding, etc. The technology of moisture permeable waterproof film. [Prior Art] The moisture permeable _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ For surgery (4), the discussion is that the Chinese medical staff are not exposed to blood and comfortable to wear, especially to protect certain high-permeability areas such as the abdomen to the chest and from the elbow to the wrist sleeves. The cloth is a package «medical knives such as scalpels, f, _ sterilized materials at high temperatures, it "the tree ship 峨 峨 dust and the fortune into the human material (four), and must have enough micropores to allow the disinfectant to penetrate Disinfect the device in the disinfection bag; the surgical towel is a medical material that prevents blood and the infection from the skin, such as a wound, during the operation. It is a sterile film with a central opening, and the mystery is on the skin of the knife. The doctor is actually working on the opening part of the hole. Since the surgical towel _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Breathable 4 membrane 彳H successful phase principle can be divided into microporous fine and non-porous hydrophilic (four) membrane two large microporous membrane 疋-layer thin polymer film with a large number of small and connected, pupil per square There are about 1.4 billion micropores in j meters, and the diameter of micropores is generally less than 2, so the diameter of straight 201122036 is 1〇0, and the water droplets around can not pass through the micropores, while the diameter of water is 0. _4 eggs of water vapor and work gas ~ through The proliferation and convection of the chaotic body pass freely through the micropores. In the micro-film, the water droplets are bound to the hole towel' and are subjected to surface tension. The smaller the finer, the more external force is needed to break the surface tension so that the water droplets overflow the hole. Therefore, the water repellency of the micropores is inversely proportional to the diameter of the pores, and the moisture permeability is proportional to the porosity and the porosity, and inversely proportional to the thickness. The hole of the micro-film is divided into straight and Lin. Straight-through microporous waterproofing and aging effects are far less than the micropores of Saki, so the micro-holes are inflexible. The ship's turn-like is a hydrophobic 6-b micropore ship. It was first developed in the PTFE microporous moisture permeable film developed by the American 〇Gore. In addition to the microporous moisture permeable film, the microporous moisture permeable film is After the olefin resin is used, the graded carbon powder is used, and the polymer substrate is stretched by the film stretching orientation to form a pore film in the carbonic acid smog (for example, (4) 85855). However, the relationship due to its poor mechanical performance is currently mainly used in sanitary materials and diapers for infants and young children. In addition, there is also a porous film of polythene hydrocarbon which is a porous film with a pattern that is ventilated and lightly rich in the back of the bribe. CN12G7340>, , non-porous hydrophilicity _ is composed of hard and soft segments along the macromolecular chain _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ They can interact with water molecules, and by means of hydrogen bonds and other intermolecular forces, adsorb water molecules on the high-humidity side, and through the hydrophilic chain of the polymer chain, the low humidity ___ is sucked, thereby achieving the effect of moisture permeability. Through the _ Cheng is also the "rhyme - ship collar, the hydrophilic film of the moisture permeability of the film depends on the thickness and their chemical composition and position, the charm and humidity is very sensitive. Her lion is high - facing the reduction - Surface transfer, thin _ thin, better moisture permeability. The material that can be used as a non-porous hydrophilic _ contains polyamine ride ((10) coffee 2, 201122036 CN101081895), Jujun-s purpose copolymer (lJS 74) 〇5_), poly bond _ ugly amine copolymer (us 5989697, US 5744570), etc. However ' The oxygen permeability of molecular films is greatly affected by the nature of polymer materials, including the density, molecular weight, crystallinity, molecular polarity and free M (FVee) of the polymer itself. The following table shows 7F (-dCIDi-) „Polymer forest with the same functional group χ for oxygen penetration _

Transmission Rate; OTR)

From the table - ~CN, due to the polar functional group, the hydrogen bond formed by helium causes a decrease in oxygen transmission rate. U is shot in the main chain containing polar functional recognition, polyether-acetic acid copolymer, polyether-amide, although the product has a good moisture permeability, "the milk permeability will be quite poor, so it is not conducive to the system" This wound dressing). Wei's medical equipment field (invention content) 201122036 The present invention provides a waterproof, moisture permeable and oxygen permeable film process, in order to produce a film material having water repellency, moisture permeability and oxygen permeability. And products, in addition to overcoming the shortcomings of conventional polymer film can not take into account the moisture permeability and oxygen permeability, and can be widely used in manufacturing fields such as medical, sanitary materials, packaging, textile, construction and automotive, as raw materials or processing materials for products. In order to achieve the above object, the steps of the present invention include: a. preparation step: preparing the required raw materials, including thermoplastic polyisocyanate resin bismuth plastic particles, 4-methyl pentene copolymer granules and 5,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The outer diameter (D) is 30mm, The twin-screw extruder with a speed of 100 RPM, the twin-screw extruder adopts section heating for each section, and the heating temperature is set at 18 〇. 〇 to 22 〇 °c, the granular raw materials The molten phase is mixed into a uniform fluid-like mixed plastic; ...·' L drying step. The obtained Kunming plastic is cooled and cooled by a cooling mechanism, «Hai cooler_ is a strip cooling machine, and the strip cooling machine is The fluid-like mixing age is recorded, and the water is cut into granules by the age of water, and then the cold money is placed in the dehumidification mechanism. The dehumidification mechanism is a miscellaneous machine, and the touch shaft is brittle. The moisture is completely removed to form a film plastic granule; d. processing. The non-porous hydrophilicity produced by the aforementioned process _, the oxygen permeability is derived from the TPX Nanfen 201122036 sub-material, and the additional moisture permeability is added. Sexual wet and oxygen permeable effect. TPU polymer material to achieve water-repellent and transparent film, the preparation, lining and filming process can be slightly changed, according to the formation of different types of film with the same effect, The steps to make the content change are as follows: In the preparation / step, the preparation will be required The raw materials to be converted into thermoplastic polyisocyanate resin pre-plasticized 4-methylpentene copolymer τρχ powder and maleic acid liver-grafted polypropylene p(10) granules; Plastic polyisocyanate resin plastic granules and maleic acid needle grafted propylene PPgMA plastic granules placed in the heating department of the mixed building, and then mixed with 4 - ρ ke pentene copolymer TPX powder The segment is heated in sections, but the heating temperature is set at ^ to 18 (TC(10)', and the addition of sharp-melting is synthesized into a mixed-ship plastic containing poplar; the remaining dehumidification drying and processing steps are as described above. The process can produce a microporous film with waterproof, moisture permeable and oxygen permeable effect. After the τρυ polymer material is mixed into the graded bismuth powder, the polymer substrate is stretched by the film stretching orientation around τρχ. The pores are formed to impart oxygen permeability to the film. • &> The present invention proposes a gas permeable and oxygen permeable effect by using a moisture permeable polymer material by adding a 4-mercapto pentylene copolymer. In the present invention, it is focused on the use of the mixing of raw materials and the combination of drying and adding the king, and controlling the thickness and the thickness of the film to produce a waterproof, moisture permeable and oxygen permeable film product. Therefore, this case is a fairly practical and progressive invention, worthy of promotion by the industry and publicity. [Embodiment] The present invention relates to a process for waterproofing and moisture permeable film, and the following will further explain the specific raw material ratio and detailed production process: a · Preparation steps: selection: 7 201122036 ι_大东树职学股份Miscellaneous company, the job is 16_ _ poly _ salt resin TPU plastic ioophr; 2. Yunme material technology _ _ _ _ _ 4 4 methyl pentane copolymer TPX plastic iophr; DuPont Month Co., Ltd., Wei Wei MZ353D maleic acid needle grafted polypropylene ppgMA plastic 5PilR; b. 'See the light: the toilet is placed - the machine is turned over to mix the raw materials, the mixing mechanism is snail The cup length control ratio (L/D) is 43.5, the outer diameter (9) is the output, and the rotation speed is 100 RPM. The twin screw extruder is divided into a conveying section for conveying granular raw materials. The raw material melt mixing section and the m-series which transport the fluid outward are heated in stages, and the heating temperature is set between 180C and 220 C, and the granular raw materials are melted and mixed into a fluid mixture. After the plastic is refined, it is output to the outside; c. In addition to the Wei drying step, the obtained mixed plastic is passed through a cooling mechanism. Saki temperature cooling, the cooling machine is a domain rider, the miscellaneous cold grade pulls the fluid-like surface to the secret shape, and the mixed surface of the New Zealand is cooled by cold water and then cut into a miscellaneous shape. Containing moisture, so the mixture is then poured. In addition to the surface structure, the dehumidification mechanism is an age machine, and the inspection system is completely dried and removed to form a film plastic particle; d. Two steps · In the processing step, the thickness of the film plastic granules is controlled in the pleural effusion::: The flat film extruder extracts the film plastic granules and then the extension machine is: Porous hydrophilic film. 201122036 The invention can also change the preparation steps of the preparation step and the mixing and polymerization steps, and according to the different types of films having the same effect, the steps of the steps are changed as follows: The raw materials required for the preparation are changed into: L thermoplastic polyisocyanate resin TPU plastic 100PHR; 2. 4 mercapto pentylene copolymer TPX powder 10P; 3. Maleic anhydride grafted poly_ PPgMA plastic 5PHR; '. Poly ~ Suzhong' changed to first thermoplastic polyisocyanate resin pre-plastic particles and maleic anhydride grafted ppgMA miscellaneous mixer was added to the ageing, and then m τ-pentylene co-polymerization The powder of the material, the Kawasaki mechanism is also heated in sections, but the heating temperature is changed to set between = 60 C and (10) C. The material is heated to mix into a fluid-like mixed plastic containing the German end, and the remaining drying and processing The steps are the same as the aforementioned process, and a microporous film having a waterproof, moisture permeable and oxygen permeable effect can be produced through the process. " non-porous hydrophilic _ and microporous film produced by the above two processes, the former is made of TPX polymer material, and then added with hygroscopic polymer material; The effect of waterproofing, moisture permeable and oxygen permeable of the film is achieved; while the latter is obtained by using (4) a polymer material to obtain a powder, and then stretching the polymer substrate by stretching the film to form a pore around the ΤΡλ to form a film. Has oxygen permeability. The above is only (4) _ the preferred embodiment of the present invention, and it is not intended to have any form of rottenness in the present invention, and the invention or the changer of the invention is 'fourth' It is intended to be included within the scope of the intended protection of the invention. [Simple description of the schema] 201122036 [Description of main component symbols]

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Claims (1)

201122036 VII. Patent application scope: 1 waterproof and moisture permeable membrane process, including the following steps: a. Preparation steps: preparation of the required raw materials, including moisture-permeable elastomer, grafted with poly-baked tobacco, maleic acid shout Hydrocarbon-based lysine acid or ionic compound granular or powdery resin raw material is mixed into plastics by mixing step; b·mixing step: mixing secret people __ mixed _ riding and mixing, the mixing surface I Section section heating 'heating temperature is set to discriminate between it and 22〇c> c, the raw material is heated and melted to mix into a mixed plastic; ~ ', drying step. Will be obtained; _Drying in the dehumidification mechanism; d·Processing step: control the thickness of the film plastic granules to the chest to (10) Na, and form a film by blowing or flat film extrusion machine to obtain a non-porous waterproof, moisture permeable and oxygen permeable effect. Hydrophilic film. 2, according to the water-proof osmosis process described in item i of the patent scope, wherein the smelting mechanism is an early screw extruder or a twin screw extruder, and the single screw extruder or twin screw extruder will The granular raw-melt phase is mixed into a uniform fluid mixed plastic. 3. According to the scope of the patent application, the waterproof and moisture permeable oxygen permeation process described in claim 2, wherein the twin screw extruder adopts a screw length to diameter ratio of 43.5, an outer diameter of 3 〇, and a rotation speed of just _ specification. Called God # patent scope of the first item of the waterproof and moisture permeable oxygen film process, wherein the current and several systems are the strip cold machine, the strip cooler is a fluid-like mixed plastic shape and is cold Turning the temperature and then cutting off the lack of; ', this, "the structure is dry (four), the remaining machine will completely remove the moisture of the mixed face. 201122036 5 · According to the patent application scope of the second aspect of the waterproof moisture-permeable oxygen permeable film process, wherein the cooling mechanism is a brace cooler 'the bake cooler is to pull the fluid mixed plastic into strips' And after cooling by cold water, it is cut into granules; the dehumidification mechanism is a dry granulator, and the granule is completely removed from the moisture of the mixed plastic. The process of waterproofing, moisture permeable and oxygen permeable membrane according to any one of claims 1 to 5, wherein the processing step is to melt the film by a film blowing machine or a flat film extruder. After being stretched by an extension machine, it is taken as a waterproof and moisture permeable oxygen permeable film. 7. A waterproof, moisture permeable and oxygen permeable film process comprising the following steps: _ a. Preparation step: preparing the required raw materials, including moisture permeable elastomer, τρχ and polyolefin grafted maleic anhydride or polyolefin grafting Acrylic acid or ionic compound granular or powdery resin raw material is mixed into plastics by mixing step; b. mixing step: firstly grafting thermoplastic polyisocyanate resin TPD plastic particles with maleic acid liver The polypropylene PPgMA plastic pellets are placed in a mixing mechanism to be heated and melted, and then mixed into the 4-mercapto pentylene copolymer TPX powder, and the heating temperature is set at 16 〇t. ^ 18 (between rc, the raw material is heated to φ to be mixed into a mixed plastic; c. Dehumidifying and drying step: the obtained kneading (four) is placed for dry operation; force v is used to control the thickness of the 4 film plastic particles to 1 〇um to 1〇〇(10), and use a blown film machine or a flat film extrusion machine to make a fine-cut micro-pores with waterproof and oxygen-permeable effect. 8. The root shot is as described in item 7 of the patent scope. Waterproof and moisture permeable paste, wherein the corpse ___________ 12 201122036 melts into a fluid containing the surface 岐The plastic Q ' θ special plum 8 described in the waterproof escape oxygen process, wherein the screw squeezing machine adopts the screw length to diameter ratio as the outer diameter is accelerated to the 臓 specification. ^ ^Special plum 7 items Ρ······································································································ ', ', the mechanism is a dry granulator, the granule is completely removed from the moisture of the mixed plastic. According to the application of the scope of the application of the scope of the patent, the waterproof and moisture permeable. Oxygen _ process, the cooling in the basin The system is the age of the machine, but the age of the crane is measured by the Wei-run, and it is cut into strips. After the cold_temperature, it is cut into pellets; the far dehumidifier __grans machine, the water of the machine is completely Removal. • 2 2 · The lion is required to apply the waterproof and moisture permeable method described in the item -7 to ith: the film is processed by a single screw reduction or twin screw extruder. After the granules are melted and melted, the machine is stretched and drawn into a waterproof, moisture permeable and oxygen permeable film. 201122036 IV. Designated representative map: (1) The representative representative of the case is: .) FIG. (B) This reference numerals of FIG. Representative briefly described: Fifth, if the case of formula, please disclosed invention features most indicative of the formula: