CN104985737A - Manufacturing method of weftless ultrahigh molecular weight polyethylene film - Google Patents
Manufacturing method of weftless ultrahigh molecular weight polyethylene film Download PDFInfo
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- CN104985737A CN104985737A CN201510310495.2A CN201510310495A CN104985737A CN 104985737 A CN104985737 A CN 104985737A CN 201510310495 A CN201510310495 A CN 201510310495A CN 104985737 A CN104985737 A CN 104985737A
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- molecular weight
- weight polyethylene
- temperature
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- high molecular
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- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 title claims abstract description 44
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a manufacturing method of a weftless ultrahigh molecular weight polyethylene film. The manufacturing method comprises the following steps: an ultrahigh molecular weight polyethylene raw material with the molecular weight more than or equal to 9000000 is put in a drying oven for keeping the temperature by 4 hours, and is cooled to the environment temperature; the raw material is put in a mold for pre-cold pressing with the pressure of 14 Mpa; then, the remainder material is continuously added in the mold, and is applied with the pressure of 14 Mpa; the internal and the external of the mold are electromagnetically heated up to the temperature of 245 DEG C; the temperature is automatically kept for 7 hours; compressed air is fed in double-spiral circulating tanks of inner and outer layers of the mold for slowly cooling to the temperature of 160 DEG C; then, water is fed for cooling to the temperature of 80 DEG C; and the cooled ultrahigh molecular weight polyethylene blank is ejected out of the mold, is cooled to the environment temperature, is put in liquid nitrogen for standing for 4 hours, is taken out for quickly pressurizing under a pressure of 14 Mpa, is heated up to the temperature of 160 DEG C in a pressure keeping nitrogen protection manner, and is cut to a weftless film for future use. The invention aims to provide the manufacturing method of the weftless ultrahigh molecular weight polyethylene film; the manufacturing method can form the large-scale production, and is high in production efficiency; and the produced weftless ultrahigh molecular weight polyethylene film is improved in such indexes as tensile strength.
Description
Technical field
The present invention relates to a kind of chemical materials preparation method.Be specifically related to a kind of preparation method without latitude ultra-high molecular weight polyethylene film.
Background technology
Prior art produce without latitude cloth, its mode of production is loaded down with trivial details, production technology also comparatively backwardness, generally can only produce through techniques such as chemical impregnation, high temperature spray silk, stretching, line row, splicing, cuttings with ultra-high molecular weight polyethylene raw material, do not become large-scale production, market can not be met to the demand without latitude cloth; Separately, what use prior art to produce also has much room for improvement without indexs such as latitude cloth hot strength, wearability, cutting resistances.
Summary of the invention
The object of this invention is to provide a kind of preparation method without latitude ultra-high molecular weight polyethylene film, this preparation method can form large-scale production, and production efficiency is high, and all increasing without indexs such as latitude ultra-high molecular weight polyethylene film stretching intensity of producing.
In order to achieve the above object, the present invention has following technical scheme:
The invention provides a kind of preparation method without latitude ultra-high molecular weight polyethylene film, production technology comprises the following steps,
1) ultra-high molecular weight polyethylene raw material stoving: drying baker put into by ultra-high molecular weight polyethylene raw material molecular weight being more than or equal to 9,000,000, is greater than 100 DEG C of constant temperature 4-8 hour, is down to environment temperature;
2) the part ultra-high molecular weight polyethylene raw material after oven dry is loaded mould to cold pressing in advance, pressure 14-18Mpa, then clout is continued to add mould, then exert pressure, pressure 14-18Mpa;
3) by Electromagnetic Heating inside and outside mould, i.e. heat-conducting oil heating, temperature is increased to 235-245 DEG C, automatic constant-temperature 7 hours;
4) pass into compressed air by mould ectonexine double helix circulating slot, slowly cool to 160 DEG C, then pass into and be water-cooled to 80 DEG C;
5) by cooled ultra-high molecular weight polyethylene blank ejection die, Temperature fall is to environment temperature;
6) ultra-high molecular weight polyethylene blank is put into liquid nitrogen, place 4 hours, pressurize rapidly after taking-up 14Mpa, and pressurize nitrogen protection is heated to 160 DEG C;
7) as required the ultra-high molecular weight polyethylene blank vehicle after collection quenching stretches is whittled into without latitude film stand-by.
Further, described mould comprises formpiston and former, described former is sheathed in formpiston, be provided with top board above described formpiston, be provided with base pressure plate below, described top board, base pressure plate and formpiston and former form die cavity, described formpiston skin and former internal layer are provided with electromagnetic wire, be provided with double helix circulating slot in the die wall of described formpiston and former, separately establish a temperature sensor to be located between electromagnetic wire and double helix circulating slot, outer surface and the former inner surface of described formpiston are provided with a heat-insulation layer.
Owing to taking above technical scheme, the invention has the advantages that:
Revolutionize original low mode of production, form large-scale production, greatly enhance productivity, low labour intensity; Eliminate the pollution of chemical impregnation to environment, energy-saving and environment friendly; Greatly reduce production cost, adapt to the market of continuous expansion; The present invention collects quenching and the mode of stretching integral, is conducive to ultra-high molecular weight polyethylene strand and resets, and make more strand be parallel to axle center.
Accompanying drawing explanation
fig. 1for this
inventionsection signal
figure.
in figure: 1, formpiston 2, former 3, base pressure plate 4, top board 5, heat-insulation layer, 6, electromagnetic wire 7, temperature control sensor 8, double helix circulating slot 9, die cavity
Detailed description of the invention
Below implement for illustration of the present invention, but be not used for limiting the scope of the invention.
Embodiment 1
1) by 200kg molecular weight be 9,000,000 ultra-high molecular weight polyethylene raw material put into drying baker, be greater than 100 DEG C of constant temperature 4 hours, be down to environment temperature;
2) the part ultra-high molecular weight polyethylene raw material after oven dry is loaded mould to cold pressing in advance, pressure 14Mpa, then clout is continued to add mould, then exert pressure, pressure 14Mpa;
3) by Electromagnetic Heating inside and outside mould, i.e. heat-conducting oil heating, temperature is increased to 235 DEG C, automatic constant-temperature 7 hours;
4) pass into compressed air by mould ectonexine double helix circulating slot, slowly cool to 160 DEG C, then pass into and be water-cooled to 80 DEG C;
5) by cooled ultra-high molecular weight polyethylene blank ejection die, Temperature fall is to environment temperature;
6) ultra-high molecular weight polyethylene blank is put into liquid nitrogen, place 4 hours, pressurize rapidly after taking-up 14Mpa, and pressurize nitrogen protection is heated to 160 DEG C;
7) as required the ultra-high molecular weight polyethylene blank vehicle after collection quenching stretches is whittled into without latitude film stand-by.
Embodiment 2
1) the ultra-high molecular weight polyethylene raw material of 250kg molecular weight 9,000,000 is put into drying baker, be greater than 100 DEG C of constant temperature 5 hours, be down to environment temperature;
2) the part ultra-high molecular weight polyethylene raw material after oven dry is loaded mould to cold pressing in advance, pressure 16Mpa, then clout is continued to add mould, then exert pressure, pressure 16Mpa;
3) by Electromagnetic Heating inside and outside mould, i.e. heat-conducting oil heating, temperature is increased to 240 DEG C, automatic constant-temperature 7 hours;
4) pass into compressed air by mould ectonexine double helix circulating slot, slowly cool to 160 DEG C, then pass into and be water-cooled to 80 DEG C;
5) by cooled ultra-high molecular weight polyethylene blank ejection die, Temperature fall is to environment temperature;
6) ultra-high molecular weight polyethylene blank is put into liquid nitrogen, place 4 hours, pressurize rapidly after taking-up 14Mpa, and pressurize nitrogen protection is heated to 160 DEG C;
7) as required the ultra-high molecular weight polyethylene blank vehicle after collection quenching stretches is whittled into without latitude film stand-by.
Embodiment 3
1) drying baker put into by ultra-high molecular weight polyethylene raw material molecular weight being more than or equal to 9,000,000, is greater than 100 DEG C of constant temperature 7 hours, is down to environment temperature;
2) the part ultra-high molecular weight polyethylene raw material after oven dry is loaded mould to cold pressing in advance, pressure 18Mpa, then clout is continued to add mould, then exert pressure, pressure 18Mpa;
3) by Electromagnetic Heating inside and outside mould, i.e. heat-conducting oil heating, temperature is increased to 245 DEG C, automatic constant-temperature 7 hours;
4) pass into compressed air by mould ectonexine double helix circulating slot, slowly cool to 160 DEG C, then pass into and be water-cooled to 80 DEG C;
5) by cooled ultra-high molecular weight polyethylene blank ejection die, Temperature fall is to environment temperature;
6) ultra-high molecular weight polyethylene blank is put into liquid nitrogen, place 4 hours, pressurize rapidly after taking-up 14Mpa, and pressurize nitrogen protection is heated to 160 DEG C;
7) as required the ultra-high molecular weight polyethylene blank vehicle after collection quenching stretches is whittled into without latitude film stand-by.
Mould described in above 3 embodiments is shown in
fig. 1, comprise formpiston 1 and former 2, former 2 is sheathed in formpiston 1, formpiston 1 is provided with top board 4 above, be provided with base pressure plate 3 below, top board 4, base pressure plate 3 and formpiston 1 and former 2 shape film forming chamber 9, formpiston 1 skin and former 2 internal layer are provided with electromagnetic wire 6, double helix circulating slot 8 is provided with in the die wall of formpiston 1 and former 2, double helix circulating slot 8 at formpiston 1 or former 2 Excircle machining out, another use one overcoat is inlayed, double helix circulating slot 8 and formpiston 1 or former 2 form an entirety, two welding is closely knit is formpiston 1 or former 2, double helix circulating slot 8 is provided with two interfaces in the lower end of formpiston 1 or former 2, be convenient to heating or cooling, double helix circulating slot heating (or cooling) medium is from a spiral fluted top to end, flow out from another spiral fluted end to head end again, a temperature sensor 7 is separately established to be located between electromagnetic wire 6 and double helix circulating slot 8.More excellent, the outer surface of formpiston 1 is provided with a heat-insulation layer 5, and heat-insulation layer 5 is close to formpiston 1, the closely knit winding heat-insulation layer 5 of electromagnetic wire 6, so not only can prevent formpiston 1 heat loss from separating simultaneously but also by electromagnetic wire 6 and formpiston 1; Former 2 internal layer surface is also provided with heat-insulation layer 5, and its heat-insulation layer 5 and electromagnetic wire 6 heat-resistant adhesive firmly stick the inwall at former 2.
What the present invention produced is widely used in producing shellproof anticorrosion shellproof without latitude film, Anti-cut Gloves, shellproof naval vessel, bullet-proof car, naval vessel without latitude film, the shellproof preservative treatment etc. of the anticorrosion anti-etch of hull, Ultralight low power consuming speedboat, radiation proof chemical defence clothing, supervirus vest, shield, flak jackets, bulletproof halmet, waterproof cloth, towing cable peculiar to vessel and mooring line, offshore platform anchor hawser, leisure rope, anti-cutting fabric, engineering earth work cloth and various moving vehicle equipment.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (4)
1. without a preparation method for latitude ultra-high molecular weight polyethylene film, it is characterized in that, production technology comprises the following steps,
1) ultra-high molecular weight polyethylene raw material stoving: drying baker put into by ultra-high molecular weight polyethylene raw material molecular weight being more than or equal to 9,000,000, is greater than 100 DEG C of constant temperature 4-8 hour, is down to environment temperature;
2) the part ultra-high molecular weight polyethylene raw material after oven dry is loaded mould to cold pressing in advance, pressure 14-18Mpa, then clout is continued to add mould, then exert pressure, pressure 14-18Mpa;
3) by Electromagnetic Heating inside and outside mould, i.e. heat-conducting oil heating, temperature is increased to 235-245 DEG C, automatic constant-temperature 7 hours;
4) pass into compressed air by mould ectonexine double helix circulating slot, slowly cool to 160 DEG C, then pass into and be water-cooled to 80 DEG C;
5) by cooled ultra-high molecular weight polyethylene blank ejection die, Temperature fall is to environment temperature;
6) ultra-high molecular weight polyethylene blank is put into liquid nitrogen, place 4 hours, pressurize rapidly after taking-up 14Mpa, and pressurize nitrogen protection is heated to 160 DEG C;
7) as required the ultra-high molecular weight polyethylene blank vehicle after collection quenching stretches is whittled into without latitude film stand-by.
2. a kind of preparation method without latitude ultra-high molecular weight polyethylene film as claimed in claim 1, it is characterized in that, described mould comprises formpiston and former, described former is sheathed in formpiston, top board is provided with above described formpiston, be provided with base pressure plate below, described top board, base pressure plate and formpiston and former form die cavity, described formpiston skin and former internal layer are provided with electromagnetic wire, be provided with double helix circulating slot in the die wall of described formpiston and former, separately establish a temperature sensor to be located between electromagnetic wire and double helix circulating slot.
3. a kind of preparation method without latitude ultra-high molecular weight polyethylene film as claimed in claim 2, is characterized in that, outer surface and the former inner surface of described formpiston are provided with a heat-insulation layer.
4. one kind by claim 1 method obtained without latitude ultra-high molecular weight polyethylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310495.2A CN104985737A (en) | 2015-06-09 | 2015-06-09 | Manufacturing method of weftless ultrahigh molecular weight polyethylene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310495.2A CN104985737A (en) | 2015-06-09 | 2015-06-09 | Manufacturing method of weftless ultrahigh molecular weight polyethylene film |
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| CN104985737A true CN104985737A (en) | 2015-10-21 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10119070A (en) * | 1996-10-18 | 1998-05-12 | Sekisui Chem Co Ltd | Manufacture of resin molding of poor moldability |
| CN1211211A (en) * | 1996-02-16 | 1999-03-17 | 纽约残疾人协会下属特种外科医院 | Process for preparing shaped articles of ultra-high molecular weight low-modulus polyethylene by controlling pressure and temperature, and compositions and articles made therefrom |
| CN202498672U (en) * | 2012-03-02 | 2012-10-24 | 江苏泰氟隆科技有限公司 | Ultra-high molecular weight polyethylene turning film compression molding device |
| CN202498745U (en) * | 2012-03-02 | 2012-10-24 | 江苏泰氟隆科技有限公司 | Turned ultra-high molecular weight polyethylene film |
| CN103085211A (en) * | 2011-11-02 | 2013-05-08 | 深圳市冠力新材料有限公司 | Preparation method of ultrahigh molecular-weight polyethylene film material |
-
2015
- 2015-06-09 CN CN201510310495.2A patent/CN104985737A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1211211A (en) * | 1996-02-16 | 1999-03-17 | 纽约残疾人协会下属特种外科医院 | Process for preparing shaped articles of ultra-high molecular weight low-modulus polyethylene by controlling pressure and temperature, and compositions and articles made therefrom |
| JPH10119070A (en) * | 1996-10-18 | 1998-05-12 | Sekisui Chem Co Ltd | Manufacture of resin molding of poor moldability |
| CN103085211A (en) * | 2011-11-02 | 2013-05-08 | 深圳市冠力新材料有限公司 | Preparation method of ultrahigh molecular-weight polyethylene film material |
| CN202498672U (en) * | 2012-03-02 | 2012-10-24 | 江苏泰氟隆科技有限公司 | Ultra-high molecular weight polyethylene turning film compression molding device |
| CN202498745U (en) * | 2012-03-02 | 2012-10-24 | 江苏泰氟隆科技有限公司 | Turned ultra-high molecular weight polyethylene film |
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Application publication date: 20151021 |
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