CN105330937A - Method for wet preparation of PE (polyethylene) plastic polymers - Google Patents
Method for wet preparation of PE (polyethylene) plastic polymers Download PDFInfo
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
- C08K5/00—Use of organic ingredients
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- C08K5/053—Polyhydroxylic alcohols
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/21—Urea; Derivatives thereof, e.g. biuret
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- 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
- C08K3/20—Oxides; Hydroxides
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- C08K2003/2265—Oxides; Hydroxides of metals of iron
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
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Abstract
The invention discloses a method for wet preparation of PE (polyethylene) plastic polymers and belongs to the field of preparation of plastic polymers. Scindapsus aureus leaves and Japanese creeper leaves are cleaned and mashed, an extraction liquid is obtained through extraction by the aid of ethyl acetate and mixed with PE powder with the ultra-high molecular weight to be steamed, ferric hydroxide particles are added after cooling, the mixture is stirred to be evenly mixed, left to stand for precipitation, filtered, extruded into a cake, dried and squeezed into filaments, the filaments are rinsed with concentrated sulfuric acid, washed with deionized water, rinsed with a sodium hydroxide solution and washed with deionized water sequentially and are rinsed with a plant extraction liquid repeatedly, and the PE plastic polymers are prepared through drawing and natural air-drying. The method has the benefits as follows: the preparation method is simple, and extraction by the aid of an extraction agent is not required during preparation, so that no pollution is caused to the environment; the production cost is low, and the obtained product is good in quality and excellent in performance.
Description
Technical field
The present invention relates to a kind of method of wet-layer preparation vinyon polymkeric substance, belong to plastic polymer preparation field.
Background technology
Polyethylene (PE) is plastic polymer the most frequently used in the world, year rate of consumption exceed annual 50000000000 pounds.Porex product more than 70% uses polyethylene.With the linear molecule Jie Gou – CH repeated
2-CH
2-be unit, PE is a kind of semi-crystalline polymer, and its obdurability is enhanced before tension fracture.In general, PE is a kind of firm lightweight thermoplastic material, has fabulous chemical resistant properties.Erosion resistance, electrical insulating property (especially high-frequency insulation) is excellent, can chlorination, radiation modification, and available glass fiber strengthens.The fusing point of low pressure polyethylene, rigidity, hardness and intensity higher, water-absorbent is little, has good electrical property and radiation resistance; The flexibility of high-pressure polyethylene, elongation, shock strength and perviousness are better, and ultrahigh molecular weight polyethylene(UHMWPE) shock strength is high, antifatigue, wear-resisting.Low pressure polyethylene is suitable for making corrosion-resistant part and insulating part; High-pressure polyethylene is suitable for making film etc.; Ultrahigh molecular weight polyethylene(UHMWPE) is suitable for making damping, wear-resisting and driving parts.
At present high-performance polyethylene fibres has two kinds of different production technology routes in the world: one is take Dyneema as high volatile solvent (perhydronaphthalene) dry gel spinning technique route (abbreviation dry route) of representative, and another take Spectra as low voc solvent (mineral oil, white oil etc.) wet method gel spinning operational path (abbreviation wet route) of representative.Dry route with high volatile volatile perhydronaphthalene for solvent, ultrahigh molecular weight polyethylene(UHMWPE) powder is raw material, frozen glue dry-spinning → super times thermal stretch → solvent recovering system integration is adopted to produce high-performance polyethylene fibres, spinning solution makes perhydronaphthalene gasification effusion after orifice is extruded, obtain dry state gel precursor, obtain high-performance polyethylene fibres through super drawing.Wet route is with the low volatility materials such as mineral oil, white oil for ultrahigh molecular weight polyethylene(UHMWPE) spinning solution prepared by solvent, and spinning solution enters water-bath (or water was bathed with mixing of second triol etc.) and solidifies the hygrometric state gel precursor obtained containing low voc solvent after orifice is extruded.By the extraction agent (freonll-11 or other reagent) of hygrometric state gel precursor high volatile volatile and excellent extraction ability through continuous extraction apparatus multi-stage solvent extraction, replace extraction agent in gel precursor fully to gasify effusion through continuous multi-stage drying installation, obtain dry state gel precursor, obtain high-performance polyethylene fibres through super drawing.The advantages such as dry route has that technical process is short, good product quality, production cost are low, solvent directly reclaims, airtight integrated, the economic environmental protection of spinning and solvent recovering system.Need in wet process route to consume a large amount of extraction agents and experience multiple tracks extraction, dry, mix reagent rectifying separation removal process, easily causing environmental pollution.Current extraction agent used is fluorine Lyons, may be disabled because there being destruction to atmospheric layer.
Summary of the invention
Technical problem to be solved by this invention: for wet route with mineral oil, the low volatility materials such as white oil are that ultrahigh molecular weight polyethylene(UHMWPE) spinning solution prepared by solvent, because original liquid concentration is lower, need to consume a large amount of extraction agents in operational path and experience multiple tracks extraction, dry, mix reagent rectifying separation removal process, and extraction agent used is fluorine Lyons, cause preparation process complicated, cost is high, drawback that may be disabled because there being destruction to atmospheric layer, provide a kind of method of wet-layer preparation vinyon polymkeric substance, the present invention be get epipremnum aureum leaf and parthenocissus leaf cleaning smash to pieces, ethyl acetate extracting obtains extract, steaming mixed with ultrahigh molecular weight polyethylene(UHMWPE) powder, add iron hydroxide particle after cooling to mix, staticly settling filtration, to be squeezed into biscuit dry, carry out squeezing into silk, successively through vitriol oil rinsing, deionized water wash, sodium hydroxide solution rinsing, deionized water wash, again through the rinsing repeatedly of plant extract, stretching natural air drying obtains.Preparation process of the present invention is simple, and without the need to extraction agent extraction, safety, environmental protection, products obtained therefrom performance is good.
For solving the problems of the technologies described above, the present invention adopts technical scheme as described below to be:
(1) 1 ~ 3kg epipremnum aureum leaf and 1 ~ 2kg parthenocissus leaf is won, putting into massfraction is respectively after the sodium chloride solution immersion 30 ~ 40min of 5 ~ 7%, 1 ~ 2 time is slightly rinsed with current, remove spot and impurity, natural air drying under ventilation state, after air-dry completing, put into rectangular vessel, after smashing to pieces with stamp mill, add 30 ~ 40mL ethyl acetate extracting, 2 ~ 3h wherein, obtain extract;
(2) above-mentioned extract is put into circular bottom pot, add 50 ~ 60g ultrahigh molecular weight polyethylene(UHMWPE) powder simultaneously, soak 1 ~ 2h, after immersion completes, control rotating speed is 500 ~ 700r/min, stir 30 ~ 40min, make it fully mix, then add water wherein, make it not have mixture 3 ~ 5cm, cover pot cover, be warming up to 100 ~ 105 DEG C with the speed program of 10 DEG C/min again, keep temperature boiling 20 ~ 30min, after boiling completes, be cooled to room temperature, obtain ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use;
(3) get 18 ~ 20g iron(ic) chloride and put into container, add 20 ~ 30mL sodium hydroxide solution wherein simultaneously, at temperature is 50 ~ 70 DEG C, magnetic agitation 20 ~ 30min, to be mixed complete after, respectively to wherein adding 10 ~ 12mL urea and 8 ~ 10mL glycerol, improve temperature be 98 ~ 100 DEG C, stir 50 ~ 60min, obtain ferric hydroxide colloid;
(4) 10 ~ 12g ferric hydroxide colloid is got, put into the dry 30 ~ 40min of 105 ~ 110 DEG C of baking ovens, after to be dried, drop in pulverizer and pulverize, be placed in runner milling again to mill 20 ~ 30min, sieve, obtain 50 ~ 60 order iron hydroxide particles, added in ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use, magnetic agitation 50 ~ 60min, control rotating speed is 1000 ~ 1200r/min, it is made fully to mix, leave standstill 1 ~ 2h, drop in extrusion machine and be squeezed into pie, put into loft drier dry, treating that it contains amount of liquid is 10 ~ 20%, stop dry, be cooled to room temperature,
(5) by above-mentioned cooled cake, put into squeezing machine, control temperature is 60 ~ 80 DEG C, and pressure is 0.5 ~ 0.7MPa, be squeezed into the filament that diameter is 30 ~ 50 μm, then successively through massfraction be rinsing 5 ~ 10min in the vitriol oil of 98%, after rinsing completes, through deionized water wash, make its pH value for neutral, being the sodium hydroxide solution rinsing 5 ~ 10min of 0.3mol/L again through mass concentration, after rinsing completes, then is neutral through deionized water wash to its pH value;
(6) added in the extracting solution of gained in step (1) by the filament after above-mentioned washing again, add-on and filament mass ratio are 3:2, repeatedly rinsing 20 ~ 30min, after rinsing completes, it is stretched, take out after stretching, natural air drying, obtains vinyon polymkeric substance.
Application method of the present invention: by obtained vinyon polymkeric substance, roll, solidify, the demoulding, application make bike parking brake, gained parking brake quality is good, recording tensile strength is 2500MPa, linear expansivity is little, not by low temperature temperatures involved, sustainable use 15 ~ 20 years is indeformable, corrosion-resistant and shock-resistance is strong.
The present invention is compared with additive method, and Advantageous Effects is:
(1) preparation method of the present invention is simple, without the need to extraction agent extraction in preparation process, and environmentally safe;
(2) production cost is low, and products obtained therefrom quality is good, excellent performance.
Embodiment
First 1 ~ 3kg epipremnum aureum leaf and 1 ~ 2kg parthenocissus leaf is won, putting into massfraction is respectively after the sodium chloride solution immersion 30 ~ 40min of 5 ~ 7%, 1 ~ 2 time is slightly rinsed with current, remove spot and impurity, natural air drying under ventilation state, after air-dry completing, put into rectangular vessel, after smashing to pieces with stamp mill, add 30 ~ 40mL ethyl acetate extracting, 2 ~ 3h wherein, obtain extract; Then above-mentioned extract is put into circular bottom pot, add 50 ~ 60g ultrahigh molecular weight polyethylene(UHMWPE) powder simultaneously, soak 1 ~ 2h, after immersion completes, control rotating speed is 500 ~ 700r/min, stir 30 ~ 40min, make it fully mix, then add water wherein, make it not have mixture 3 ~ 5cm, cover pot cover, be warming up to 100 ~ 105 DEG C with the speed program of 10 DEG C/min again, keep temperature boiling 20 ~ 30min, after boiling completes, be cooled to room temperature, obtain ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use; Get 18 ~ 20g iron(ic) chloride again and put into container, add 20 ~ 30mL sodium hydroxide solution wherein simultaneously, at temperature is 50 ~ 70 DEG C, magnetic agitation 20 ~ 30min, to be mixed complete after, respectively to wherein adding 10 ~ 12mL urea and 8 ~ 10mL glycerol, improve temperature be 98 ~ 100 DEG C, stir 50 ~ 60min, obtain ferric hydroxide colloid; Get 10 ~ 12g ferric hydroxide colloid, put into the dry 30 ~ 40min of 105 ~ 110 DEG C of baking ovens, after to be dried, drop in pulverizer and pulverize, be placed in runner milling again to mill 20 ~ 30min, sieve, obtain 50 ~ 60 order iron hydroxide particles, added in ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use, magnetic agitation 50 ~ 60min, control rotating speed is 1000 ~ 1200r/min, makes it fully mix, leave standstill 1 ~ 2h, drop in extrusion machine and be squeezed into pie, put into loft drier dry, treating that it contains amount of liquid is 10 ~ 20%, stop dry, be cooled to room temperature; Again by above-mentioned cooled cake, put into squeezing machine, control temperature is 60 ~ 80 DEG C, and pressure is 0.5 ~ 0.7MPa, be squeezed into the filament that diameter is 30 ~ 50 μm, then successively through massfraction be rinsing 5 ~ 10min in the vitriol oil of 98%, after rinsing completes, through deionized water wash, make its pH value for neutral, being the sodium hydroxide solution rinsing 5 ~ 10min of 0.3mol/L again through mass concentration, after rinsing completes, then is neutral through deionized water wash to its pH value; Finally added in the obtained extracting solution of epipremnum aureum leaf and parthenocissus leaf by the filament after above-mentioned washing again, add-on and filament mass ratio are 3:2, repeatedly rinsing 20 ~ 30min, after rinsing completes, it is stretched, take out after stretching, natural air drying, obtains vinyon polymkeric substance.
Example 1
First 1kg epipremnum aureum leaf and 1kg parthenocissus leaf is won, put into respectively massfraction be 5% sodium chloride solution soak 30min after, 1 time is slightly rinsed with current, remove spot and impurity, natural air drying under ventilation state, after air-dry completing, put into rectangular vessel, after smashing to pieces with stamp mill, add 30mL ethyl acetate extracting 2h wherein, obtain extract; Then above-mentioned extract is put into circular bottom pot, add 50g ultrahigh molecular weight polyethylene(UHMWPE) powder simultaneously, soak 1h, after immersion completes, control rotating speed is 500r/min, stirs 30min, make it fully mix, then add water wherein, make it not have mixture 3cm, cover pot cover, be warming up to 100 DEG C with the speed program of 10 DEG C/min again, keep temperature boiling 20min, after boiling completes, be cooled to room temperature, obtain ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use; Get 18g iron(ic) chloride again and put into container, add 20mL sodium hydroxide solution wherein, at temperature is 50 DEG C simultaneously, magnetic agitation 20min, to be mixed complete after, respectively to wherein adding 10mL urea and 8mL glycerol, improving temperature is 98 DEG C, stirs 50min, obtains ferric hydroxide colloid; Get 10g ferric hydroxide colloid, put into 105 DEG C of dry 30min of baking oven, after to be dried, drop in pulverizer and pulverize, then be placed in runner milling and mill 20min, sieve, obtain 50 order iron hydroxide particles, added in ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use, magnetic agitation 50min, control rotating speed is 1000r/min, makes it fully mix, and leaves standstill 1h, drop in extrusion machine and be squeezed into pie, put into loft drier dry, treating that it contains amount of liquid is 10%, stop dry, be cooled to room temperature; Again by above-mentioned cooled cake, put into squeezing machine, control temperature is 60 DEG C, and pressure is 0.5MPa, be squeezed into the filament that diameter is 30 μm, then successively through massfraction be rinsing 5min in the vitriol oil of 98%, after rinsing completes, through deionized water wash, make its pH value for neutral, being the sodium hydroxide solution rinsing 5min of 0.3mol/L again through mass concentration, after rinsing completes, then is neutral through deionized water wash to its pH value; Finally added in the obtained extracting solution of epipremnum aureum leaf and parthenocissus leaf by the filament after above-mentioned washing again, add-on and filament mass ratio are 3:2, repeatedly rinsing 20min, after rinsing completes, it is stretched, take out after stretching, natural air drying, obtains vinyon polymkeric substance.
By obtained vinyon polymkeric substance, roll, solidify, the demoulding, application make bike parking brake, gained parking brake quality is good, and recording tensile strength is 2500MPa, linear expansivity is little, not by low temperature temperatures involved, sustainable use 20 years is indeformable, corrosion-resistant and shock-resistance is strong.
Example 2
First 2kg epipremnum aureum leaf and 1.5kg parthenocissus leaf is won, put into respectively massfraction be 6% sodium chloride solution soak 35min after, 2 times are slightly rinsed with current, remove spot and impurity, natural air drying under ventilation state, after air-dry completing, put into rectangular vessel, after smashing to pieces with stamp mill, add 35mL ethyl acetate extracting 2.5h wherein, obtain extract; Then above-mentioned extract is put into circular bottom pot, add 55g ultrahigh molecular weight polyethylene(UHMWPE) powder simultaneously, soak 1.5h, after immersion completes, control rotating speed is 600r/min, stirs 35min, make it fully mix, then add water wherein, make it not have mixture 4cm, cover pot cover, be warming up to 103 DEG C with the speed program of 10 DEG C/min again, keep temperature boiling 25min, after boiling completes, be cooled to room temperature, obtain ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use; Get 19g iron(ic) chloride again and put into container, add 25mL sodium hydroxide solution wherein, at temperature is 60 DEG C simultaneously, magnetic agitation 25min, to be mixed complete after, respectively to wherein adding 11mL urea and 9mL glycerol, improving temperature is 99 DEG C, stirs 55min, obtains ferric hydroxide colloid; Get 11g ferric hydroxide colloid, put into 108 DEG C of dry 35min of baking oven, after to be dried, drop in pulverizer and pulverize, then be placed in runner milling and mill 25min, sieve, obtain 55 order iron hydroxide particles, added in ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use, magnetic agitation 55min, control rotating speed is 1100r/min, makes it fully mix, and leaves standstill 1.5h, drop in extrusion machine and be squeezed into pie, put into loft drier dry, treating that it contains amount of liquid is 15%, stop dry, be cooled to room temperature; Again by above-mentioned cooled cake, put into squeezing machine, control temperature is 70 DEG C, and pressure is 0.6MPa, be squeezed into the filament that diameter is 40 μm, then successively through massfraction be rinsing 8min in the vitriol oil of 98%, after rinsing completes, through deionized water wash, make its pH value for neutral, being the sodium hydroxide solution rinsing 8min of 0.3mol/L again through mass concentration, after rinsing completes, then is neutral through deionized water wash to its pH value; Finally added in the obtained extracting solution of epipremnum aureum leaf and parthenocissus leaf by the filament after above-mentioned washing again, add-on and filament mass ratio are 3:2, repeatedly rinsing 25min, after rinsing completes, it is stretched, take out after stretching, natural air drying, obtains vinyon polymkeric substance.
By obtained vinyon polymkeric substance, roll, solidify, the demoulding, application make bike parking brake, gained parking brake quality is good, and recording tensile strength is 2500MPa, linear expansivity is little, not by low temperature temperatures involved, sustainable use 18 years is indeformable, corrosion-resistant and shock-resistance is strong.
Example 3
First 3kg epipremnum aureum leaf and 2kg parthenocissus leaf is won, put into respectively massfraction be 7% sodium chloride solution soak 40min after, 2 times are slightly rinsed with current, remove spot and impurity, natural air drying under ventilation state, after air-dry completing, put into rectangular vessel, after smashing to pieces with stamp mill, add 40mL ethyl acetate extracting 3h wherein, obtain extract; Then above-mentioned extract is put into circular bottom pot, add 60g ultrahigh molecular weight polyethylene(UHMWPE) powder simultaneously, soak 2h, after immersion completes, control rotating speed is 700r/min, stirs 40min, make it fully mix, then add water wherein, make it not have mixture 5cm, cover pot cover, be warming up to 105 DEG C with the speed program of 10 DEG C/min again, keep temperature boiling 30min, after boiling completes, be cooled to room temperature, obtain ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use; Get 20g iron(ic) chloride again and put into container, add 30mL sodium hydroxide solution wherein, at temperature is 70 DEG C simultaneously, magnetic agitation 30min, to be mixed complete after, respectively to wherein adding 12mL urea and 10mL glycerol, improving temperature is 100 DEG C, stirs 60min, obtains ferric hydroxide colloid; Get 12g ferric hydroxide colloid, put into 110 DEG C of dry 40min of baking oven, after to be dried, drop in pulverizer and pulverize, then be placed in runner milling and mill 30min, sieve, obtain 60 order iron hydroxide particles, added in ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use, magnetic agitation 60min, control rotating speed is 1200r/min, makes it fully mix, and leaves standstill 2h, drop in extrusion machine and be squeezed into pie, put into loft drier dry, treating that it contains amount of liquid is 20%, stop dry, be cooled to room temperature; Again by above-mentioned cooled cake, put into squeezing machine, control temperature is 80 DEG C, and pressure is 0.7MPa, be squeezed into the filament that diameter is 50 μm, then successively through massfraction be rinsing 10min in the vitriol oil of 98%, after rinsing completes, through deionized water wash, make its pH value for neutral, being the sodium hydroxide solution rinsing 10min of 0.3mol/L again through mass concentration, after rinsing completes, then is neutral through deionized water wash to its pH value; Finally added in the obtained extracting solution of epipremnum aureum leaf and parthenocissus leaf by the filament after above-mentioned washing again, add-on and filament mass ratio are 3:2, repeatedly rinsing 30min, after rinsing completes, it is stretched, take out after stretching, natural air drying, obtains vinyon polymkeric substance.
By obtained vinyon polymkeric substance, roll, solidify, the demoulding, application make bike parking brake, gained parking brake quality is good, and recording tensile strength is 2500MPa, linear expansivity is little, not by low temperature temperatures involved, sustainable use 20 years is indeformable, corrosion-resistant and shock-resistance is strong.
Claims (1)
1. a method for wet-layer preparation vinyon polymkeric substance, is characterized in that concrete preparation process is:
(1) 1 ~ 3kg epipremnum aureum leaf and 1 ~ 2kg parthenocissus leaf is won, putting into massfraction is respectively after the sodium chloride solution immersion 30 ~ 40min of 5 ~ 7%, 1 ~ 2 time is slightly rinsed with current, remove spot and impurity, natural air drying under ventilation state, after air-dry completing, put into rectangular vessel, after smashing to pieces with stamp mill, add 30 ~ 40mL ethyl acetate extracting, 2 ~ 3h wherein, obtain extract;
(2) above-mentioned extract is put into circular bottom pot, add 50 ~ 60g ultrahigh molecular weight polyethylene(UHMWPE) powder simultaneously, soak 1 ~ 2h, after immersion completes, control rotating speed is 500 ~ 700r/min, stir 30 ~ 40min, make it fully mix, then add water wherein, make it not have mixture 3 ~ 5cm, cover pot cover, be warming up to 100 ~ 105 DEG C with the speed program of 10 DEG C/min again, keep temperature boiling 20 ~ 30min, after boiling completes, be cooled to room temperature, obtain ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use;
(3) get 18 ~ 20g iron(ic) chloride and put into container, add 20 ~ 30mL sodium hydroxide solution wherein simultaneously, at temperature is 50 ~ 70 DEG C, magnetic agitation 20 ~ 30min, to be mixed complete after, respectively to wherein adding 10 ~ 12mL urea and 8 ~ 10mL glycerol, improve temperature be 98 ~ 100 DEG C, stir 50 ~ 60min, obtain ferric hydroxide colloid;
(4) 10 ~ 12g ferric hydroxide colloid is got, put into the dry 30 ~ 40min of 105 ~ 110 DEG C of baking ovens, after to be dried, drop in pulverizer and pulverize, be placed in runner milling again to mill 20 ~ 30min, sieve, obtain 50 ~ 60 order iron hydroxide particles, added in ultrahigh molecular weight polyethylene(UHMWPE) mixture for subsequent use, magnetic agitation 50 ~ 60min, control rotating speed is 1000 ~ 1200r/min, it is made fully to mix, leave standstill 1 ~ 2h, drop in extrusion machine and be squeezed into pie, put into loft drier dry, treating that it contains amount of liquid is 10 ~ 20%, stop dry, be cooled to room temperature,
(5) by above-mentioned cooled cake, put into squeezing machine, control temperature is 60 ~ 80 DEG C, and pressure is 0.5 ~ 0.7MPa, be squeezed into the filament that diameter is 30 ~ 50 μm, then successively through massfraction be rinsing 5 ~ 10min in the vitriol oil of 98%, after rinsing completes, through deionized water wash, make its pH value for neutral, being the sodium hydroxide solution rinsing 5 ~ 10min of 0.3mol/L again through mass concentration, after rinsing completes, then is neutral through deionized water wash to its pH value;
(6) added in the extracting solution of gained in step (1) by the filament after above-mentioned washing again, add-on and filament mass ratio are 3:2, repeatedly rinsing 20 ~ 30min, after rinsing completes, it is stretched, take out after stretching, natural air drying, obtains vinyon polymkeric substance.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106519446A (en) * | 2016-11-16 | 2017-03-22 | 湖南金富包装有限公司 | High-temperature-resistant plastic bottle cap and production method thereof |
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