CN104152074A - Invisible paste for screen protection and preparation method thereof - Google Patents
Invisible paste for screen protection and preparation method thereof Download PDFInfo
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- CN104152074A CN104152074A CN201410357581.4A CN201410357581A CN104152074A CN 104152074 A CN104152074 A CN 104152074A CN 201410357581 A CN201410357581 A CN 201410357581A CN 104152074 A CN104152074 A CN 104152074A
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- amorphophalli glucomannan
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Abstract
The invention relates to an invisible paste for screen protection and a preparation method thereof. The preparation method of the invisible paste for screen protection comprises the following steps: preparing a konjac glucomannan mixed liquid; degassing; coating; cutting; and drying. According to the preparation method provided by the invention, by taking konjac glucomannan as the raw material supplemented by other synergists, the paste has good film forming property, water absorption, great tensile strength and good flexibility and transparency. Compared with a common paste, the paste provided by the invention is high in tensile strength, light transmittance and viscosity, long in service time and crease-proof. The paste which is normally used is not degraded but can be fully degraded in soil under conditions of water, carbon dioxide, microorganism, temperature and the like. The paste which is short in degradation time meets the environmental friendly low carbon policy of the state. The paste provided by the invention is simple in production process, convenient and efficient to draw materials and low in price, and meets the production requirements.
Description
Technical field
The present invention relates to a kind of pad pasting and preparation method thereof, be specifically related to a kind of stealthy screen protector and preparation method thereof.
Background technology
Along with the electronic products such as expanding economy televisor, computer enter into people's life, the screen of electronic product is not easily because electro-static precipitation likely scratches yet, and electronic product is sensitive, and dust is the travelling speed that can affect its performance, particularly computer too much; Can affect its brightness but stick after film, of long duration also can be dimmed.Therefore the light transmission of film is also very important.
Application number is that 201110453802.4 patent of invention " a kind of radiation-reduction computer screen sticking film " discloses a kind of radiation-reduction computer screen sticking film, and its structure comprises plastic film paper and is arranged on the silicone rubber membrane paper on plastic film paper.Film paper and the silicone rubber membrane paper being arranged on plastic film paper are undertaken bonding by the mode of weight.Compared with prior art, the thickness of computer adhesive film is thinner, and has strengthened the wear-resisting performance of its scratch resistance after having added plastic film paper.But it reduces computer brightness, of long durationly also crease easily, discarded plastic film paper pollutes the environment and does not meet the concept of environmental protection.
Application number is 200510118970.2 patent of invention " screen paste film for protecting eyes ", has introduced a kind ofly can prevent eye strain and prevent near-sighted screen paste film for protecting eyes.It is a kind of device of planar convex lens formula, is made up of light-passing plastic.Its entirety is incomplete ball-crown body, and bottom surface is plane rectangle.Its effect is to assist human eye work, alleviates eye muscle and lenticular tensity, thereby, prevent that human eye from producing eye strain, prevents myopia.Actual use is upper, and for preventing near-sighted DeGrain, this film also can cause the refractive effect screen-picture of light, and its non-degradable also easily causes environmental pressure.
Along with socioeconomic development, the people deepen for the understanding of environment protection.The more pursuit environmental types of people product is also higher to the performance requriements of product.Common pad pasting no longer meets people's demand, and cost of the present invention is low, each functional, and the transmittance of film is high, and degradable is free from environmental pollution.
Summary of the invention
The object of this invention is to provide a kind of stealthy screen protector and preparation method thereof.
The object of the invention is to be achieved through the following technical solutions.
Stealthy screen protector membrane preparation method of the present invention, is characterized in that preparation process is as follows:
(1) prepare Rhizoma amorphophalli glucomannan mixed solution: the ratio that is konjaku powder: water=15～16:1000 according to weightmeasurement ratio (g/mL) is mixed konjaku powder with water, in water bath with thermostatic control, add while stirring the formaldehyde as 0.013%～0.015% and 0.008%～0.012% glycerine with the volume ratio of water taking 1000r/min, at 50～70 DEG C, insulation is no less than 0.5h, pass into nitrogen, add the initiator 0.001mol/L potassium permanganate solution that accounts for konjaku powder quality 0.35%, regulating temperature of reaction is 40～45 DEG C, after 10～45min, by 1～1.1 times of the weight of the konjaku powder used monomer acrylamide that to add with konjaku powder mass ratio be 1:1, reaction 3～3.5h, then stop logical nitrogen, and stop heating and stir, make Rhizoma amorphophalli glucomannan mixed solution,
(2) degassed: the Rhizoma amorphophalli glucomannan mixed solution of step (1) is placed in to whizzer, and at room temperature, the centrifugal degassed 25～30min of 3 000r/min, obtains Rhizoma amorphophalli glucomannan mixed gel liquid, for subsequent use;
(3) coating: taking regenerated cellulose film as base-material, the Rhizoma amorphophalli glucomannan mixed gel liquid of step (2) is coated on regenerated fibre film through coating machine; Coating temperature is 21.6 DEG C, surface covered 6.5m/min, churning time 50min;
(4) cut-parts: the specification cut-parts of pressing pad pasting product;
(5) dry: by film standing and drying 4～6h under room temperature of step (4) cut-parts.
Formaldehyde, glycerine, potassium permanganate and monomer acrylamide are chemical pure.
Stealthy screen protector of the present invention, is aided with other synergistic agent taking Rhizoma amorphophalli glucomannan as starting material, have good film-forming properties, water-absorbent, and tensile strength is large, snappiness is good, the transparency is good; Stealthy screen sticking film of the present invention is compared with common pad pasting, and tensile strength is high, transmittance is high, viscosity is high; Screen intensity is improved a lot, and duration of service is long, wrinkle resistant; This product is not degraded under normal use, but in soil, can be degradable by conditions such as water, carbonic acid gas, microorganism, temperature, and degradation time is shorter, meets national environmental protection low-carbon (LC) policy; Production technique of the present invention is simple, it is convenient to draw materials, and product cheap meets production requirement.
The present invention adopts Rhizoma amorphophalli glucomannan to follow Modified by Acrylamide Graft, makes product have good tensile strength, elongation at break, transparency, and film forming properties is significantly improved.The glycerine adding has good plasticization effect; Formaldehyde increases the tensile strength of film; Stealthy screen protector has the performances such as the transparency is good, tensile strength is good, viscosity height.The stealthy screen protector making is done to following performance test, and result is as shown in table 1:
(1) transmittance
Detect its transmittance with light transmittance detector;
(2) biological degradability
Adopt soil burying test organisms degradation property;
(3) viscosity
With ND-1 type rotary viscosity design determining;
(4) tensile strength
Test with ZL-300 pendulum tension stress trier;
The stealthy screen protector performance of table 1 comparison sheet
The transmittance of stealthy screen protector of the present invention is good, does not affect the brightness of screen; Tensile strength is good, is difficult for breaking in the time of pad pasting; Viscosity is high, can better be affixed on screen and not crease easily; This film can weaken screen electrostatic precipitation, together with regenerated cellulose film, jointly plays the effect that increases scratch resistance performance.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
The preparation method of embodiment 1, a kind of stealthy screen protector, comprises the following steps:
(1) prepare Rhizoma amorphophalli glucomannan mixed solution: the there-necked flask that agitator and condenser are housed is placed in to water bath with thermostatic control, add water and the 15.2g konjaku powder of 1000mL, stir with 1000r/min, add while stirring formaldehyde 14mL and glycerine 10mL, heating in water bath to 60 DEG C, insulation 0.5h, pass into nitrogen, add 0.0532g initiator 0.001mol/L potassium permanganate solution, temperature adjustment temperature of reaction is 40 DEG C, adds 15.2g monomer acrylamide after 10min, reaction 3h, then stop logical nitrogen, and stop heating and stir;
(2) degassed: the Rhizoma amorphophalli glucomannan mixed solution of step (1) is placed in to whizzer, and at room temperature, the centrifugal degassed 30min of 3 000r/min, obtains Rhizoma amorphophalli glucomannan mixed gel liquid, for subsequent use;
(3) coating: taking regenerated cellulose film as base-material, the Rhizoma amorphophalli glucomannan mixed gel liquid of step (2) is coated to regenerated fibre film through coating machine, coating temperature is 21.6 DEG C, surface covered 6.5m/min, churning time 50min;
(4) cut-parts: tailor diaphragm by the size of pad pasting product;
(5) dry: by the diaphragm of step (4) standing and drying 6h under room temperature.
Stealthy screen protector of the present invention is affixed on fluorescent screen, there is screen protection effect.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. a stealthy screen protector membrane preparation method, is characterized in that preparation process is as follows:
(1) prepare Rhizoma amorphophalli glucomannan mixed solution: the ratio that according to weightmeasurement ratio is konjaku powder: water=15～16:1000 is mixed konjaku powder with water, in water bath with thermostatic control, add while stirring the formaldehyde as 0.013%～0.015% and 0.008%～0.012% glycerine with the volume ratio of water taking 1000r/min, at 50～70 DEG C, insulation is no less than 0.5h, pass into nitrogen, add the initiator 0.001mol/L potassium permanganate solution that accounts for konjaku powder quality 0.35%, regulating temperature of reaction is 40～45 DEG C, after 10～45min, by 1～1.1 times of the weight of the konjaku powder used monomer acrylamide that to add with konjaku powder mass ratio be 1:1, reaction 3～3.5h, then stop logical nitrogen, and stop heating and stir, make Rhizoma amorphophalli glucomannan mixed solution,
(2) degassed: the Rhizoma amorphophalli glucomannan mixed solution of step (1) is placed in to whizzer, and at room temperature, the centrifugal degassed 25～30min of 3 000r/min, obtains Rhizoma amorphophalli glucomannan mixed gel liquid, for subsequent use;
(3) coating: taking regenerated cellulose film as base-material, the Rhizoma amorphophalli glucomannan mixed gel liquid of step (2) is coated on regenerated fibre film through coating machine; Coating temperature is 21.6 DEG C, surface covered 6.5m/min, churning time 50min;
(4) cut-parts: the specification cut-parts of pressing pad pasting product;
(5) dry: by film standing and drying 4～6h under room temperature of step (4) cut-parts.
2. the stealthy screen protector membrane preparation method of one according to claim 1, is characterized in that preparation process is as follows:
(1) prepare Rhizoma amorphophalli glucomannan mixed solution: the there-necked flask that agitator and condenser are housed is placed in to water bath with thermostatic control, add water and the 15.2g konjaku powder of 1000mL, stir with 1000r/min, add while stirring formaldehyde 14mL and glycerine 10mL, heating in water bath to 60 DEG C, insulation 0.5h, pass into nitrogen, add 0.0532g initiator 0.001mol/L potassium permanganate solution, temperature adjustment temperature of reaction is 40 DEG C, adds 15.2g monomer acrylamide after 10min, reaction 3h, then stop logical nitrogen, and stop heating and stir;
(2) degassed: the Rhizoma amorphophalli glucomannan mixed solution of step (1) is placed in to whizzer, and at room temperature, the centrifugal degassed 30min of 3 000r/min, obtains Rhizoma amorphophalli glucomannan mixed gel liquid, for subsequent use;
(3) coating: taking regenerated cellulose film as base-material, the Rhizoma amorphophalli glucomannan mixed gel liquid of step (2) is coated to regenerated fibre film through coating machine, coating temperature is 21.6 DEG C, surface covered 6.5m/min, churning time 50min;
(4) cut-parts: tailor diaphragm by the size of pad pasting product;
(5) dry: by the diaphragm of step (4) standing and drying 6h under room temperature.
3. the stealthy screen protector of being prepared by the method for claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410357581.4A CN104152074B (en) | 2014-07-25 | 2014-07-25 | Stealthy screen protector and preparation method thereof |
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| CN201410357581.4A CN104152074B (en) | 2014-07-25 | 2014-07-25 | Stealthy screen protector and preparation method thereof |
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| CN104152074A true CN104152074A (en) | 2014-11-19 |
| CN104152074B CN104152074B (en) | 2016-04-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714572A (en) * | 2016-04-19 | 2016-06-29 | 武汉大学 | Method for modifying high-molecular micro or nano fiber membrane through layer-by-layer assembling of coating machine |
| CN111087655A (en) * | 2020-01-21 | 2020-05-01 | 福建农林大学 | Self-repairing konjac glucomannan mobile phone tempered film and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497678A (en) * | 2008-01-28 | 2009-08-05 | 西南科技大学 | Thermoplastic glucomannan and preparation thereof |
| US7629049B2 (en) * | 2002-10-18 | 2009-12-08 | Medasorb, Inc. | Hemocompatible polymer systems and related devices |
| CN102492093A (en) * | 2011-12-02 | 2012-06-13 | 宁夏医科大学 | Preparation method and application of ultra-porous hydrogel containing natural plant polysaccharide |
| CN103786380A (en) * | 2014-01-10 | 2014-05-14 | 福建农林大学 | Automobile konjac adhesive film and preparation method thereof |
-
2014
- 2014-07-25 CN CN201410357581.4A patent/CN104152074B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7629049B2 (en) * | 2002-10-18 | 2009-12-08 | Medasorb, Inc. | Hemocompatible polymer systems and related devices |
| CN101497678A (en) * | 2008-01-28 | 2009-08-05 | 西南科技大学 | Thermoplastic glucomannan and preparation thereof |
| CN102492093A (en) * | 2011-12-02 | 2012-06-13 | 宁夏医科大学 | Preparation method and application of ultra-porous hydrogel containing natural plant polysaccharide |
| CN103786380A (en) * | 2014-01-10 | 2014-05-14 | 福建农林大学 | Automobile konjac adhesive film and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李娜等: "魔芋葡甘聚糖/丙烯酰胺薄膜的研究", 《高分子材料科学与工程》, vol. 22, no. 2, 30 March 2006 (2006-03-30) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714572A (en) * | 2016-04-19 | 2016-06-29 | 武汉大学 | Method for modifying high-molecular micro or nano fiber membrane through layer-by-layer assembling of coating machine |
| CN105714572B (en) * | 2016-04-19 | 2019-09-10 | 武汉大学 | A method of with coating machine layer assembly modified high-molecular micro/nano-fibre film |
| CN111087655A (en) * | 2020-01-21 | 2020-05-01 | 福建农林大学 | Self-repairing konjac glucomannan mobile phone tempered film and preparation method thereof |
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| CN104152074B (en) | 2016-04-06 |
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