CN103264567B - A kind of processing method driving refining calender of polyether-type TPU composite - Google Patents
A kind of processing method driving refining calender of polyether-type TPU composite Download PDFInfo
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Abstract
The present invention relates to a kind of novel processing method driving refining calender of polyether-type TPU composite, its concrete steps are: (1) batch mixing is dry, (2) base and deaeration is become, (3) calendering and laminating: four-roll calender design temperature is at 160 ~ 170 DEG C, drop into the polyether TPU material plastified, at roll surface film forming 0.10 ~ 0.15mm, with polyester filament base cloth compound under infrared preheating, fit under the pressure of 45 ~ 50KG, cooling and shaping, obtains polyether-type TPU composite.The processing thickness adjustment of composite of the present invention rapidly, tensile strength test increases by 25% than former base cloth, tearing strength increases by 27%, TPU and rolls the production of cloth employing four roll calender method, kind style varied, thickness door width can regulate arbitrarily, finished product has the high waterproof, wear-resisting, ageing-resistant of conventional thermoplastic's polyurethane, the various superior function such as corrosion resistance, the use field of thermoplastic polyurethane and processing request scope are increased greatly, reaches the demand more meeting market.
Description
[technical field]
The present invention relates to Polyether-type thermoplastic polyurethane elastomer technical field, specifically, is a kind of processing method driving refining calender of polyether-type TPU composite.
[background technology]
Calendering formation is mainly for the production of plastics and sheet material, different rolled products is obtained according to operation difference, the major product of current calendering formation is soft polyvinyl chloride film, industry is widely used in national economy, agricultural, national defence, the aspect such as health care and articles for daily use, be mainly used in waterproof in industrial aspect to cover, automobile decoration and main equipment packaging cover, agriculturally for seedling, plastic house, insulation sunshade, prevent erosion, in daily life for making raincoat in a large number, case and bag, clothes, toy packaging etc., the scope of application widely, closely bound up with people's lives.Calendering formation goods advantage is a lot, and major embodiment is as follows:
(1) the Length x Width thickness of fabricated product can carry out adjustment control according to requirements, and fast and easy, controllability is strong.
(2) quality of item is good, and thickness is even, and error is little, can prepare various flower pattern as requested.
(3) processing of same material, its mechanical strength is higher than blown film plastics.
(4) continuous seepage ability is strong, and working ability is large, and automaticity is high.
At home, the main rapidoprint of calendering formation is Corvic, although the polyvinyl chloride film scope of application widely, but because its material behavior limits, polyvinyl chloride product is caused also to there is many shortcomings, simple polyvinyl chloride cannot be processed, so some additives and plasticizer can be added man-hour to allow it have various characteristic adding, these additives and plasticizer generally all have certain toxicity, dense plastics taste is had when processing and use, be unfavorable for health, igelite is short for service life, wear-resisting poor with weather resistant, can be more hardening and easily break when temperature is lower, can chap time serious, cause using, limit rolled products in very many-sided scope of application.
TPUE (TPU) material is a kind of tasteless environmental-protecting material, and TPU has remarkable high-tension, high-tensile strength, tough and ageing-resistant characteristic, is a kind of environment-friendly materials of maturation.At present, TPU is the aspect such as extensive use and health care, electronic apparatus, industry and physical culture, the characteristics such as it has that the incomparable intensity of other plastic material is high, good toughness, wear-resisting, cold-resistant, oil resistant, water-fast, ageing-resistant, weatherability, also have the function of high waterproof and moisture permeability, windproof, cold-proof, antibacterial, mildew-resistant, warming, many excellences such as uvioresistant and fault offset simultaneously.External at first by this materials application in aviation and medical field.Along with the attention further to environmental protection and safety, in recent years domesticly also progressively occur and be applied to the industry such as recreation facility, daily necessities.TPU can be divided into polyester-type and polyether-type two kinds by molecular structure, can be divided into injection grade, extrusion grade, blowing level etc. by processing mode.The polyester TPU hydrolysis and polyether TPU material is compared, its inner material can not be dissolved in water, not easily turns to be yellow after a certain period of use time, soft compared with polyester-type, to be applicable to product waterborne be that industry material is first-selected, superior performance, can replace at present without other material.
[summary of the invention]
The object of the invention is to overcome the deficiencies in the prior art, a kind of processing method driving refining calender of polyether-type TPU composite is provided.
The object of the invention is to be achieved through the following technical solutions:
The processing method driving refining calender of polyether-type TPU composite, its concrete steps are:
(1) batch mixing is dry
By polyether TPU particle temperature be in 90 ~ 100 DEG C of drying boxes stirring at low speed dehydration 60 ~ 120 minutes, allow it fully dehydrate;
(2) base and deaeration is become
By dried polyether TPU particle and auxiliary agent on a mill until bag roller become blob of viscose, wherein, auxiliary agent accounts for 0.1 ~ 0.4% of the mass fraction of polyether TPU particle; Refine into without particle block, break into briquet, drop into planetary extruder plasticizing, vacuumizing and defoaming in plasticizing process, forms translucent column at 160 ~ 180 DEG C; Obtain the polyether TPU material plastified;
Described auxiliary agent is nano composite ammonium phosphate, nano barium sulfate, nano silicon and nano-calcium carbonate, and its mass ratio is 1: 2: 2: 1; For powder-mixed material.
(3) calendering and laminating
Four-roll calender design temperature is at 160 ~ 170 DEG C, drops into the polyether TPU material plastified, at roll surface film forming 0.10 ~ 0.15mm, with polyester filament base cloth compound under infrared preheating, fit under the pressure of 45 ~ 50KG, cooling and shaping, obtains polyether-type TPU composite;
Compared with prior art, good effect of the present invention is:
The processing thickness adjustment of composite prepared by the present invention rapidly, error is little, tensile strength test increases by 25% than former base cloth, tearing strength increases by 27%, TPU rolls cloth and adopts four roll calender method to produce, kind style varied, thickness door width can regulate arbitrarily, finished product finished product has the high waterproof, wear-resisting of conventional thermoplastic's polyurethane, ageing-resistant, the various superior function such as corrosion resistance, makes the use field of thermoplastic polyurethane and processing request scope greatly increase, reaches the demand more meeting market.
Nano barium sulfate master batch of the present invention, purchased from Suzhou Nakangnami Materials Co., Ltd., has light resistance and weatherability, meets the environmental protection standards such as Rohs, improves the mechanical performance of material.
Nano silicon of the present invention converges smart nanometer new material Co., Ltd purchased from Shanghai, and it has remarkable quantum size effect, small-size effect, skin effect and macro quanta tunnel effect, thus can show the characteristics such as special optical, electrical, magnetic; Meanwhile, nano silicon at high temperature also has high-strength, high-ductility, high stability premium properties.
Fire retardant of the present invention is nano composite ammonium polyphosphate APP, and its chemical structural formula is: (NH4) n+2PnO3n+1; This nano-complex compares II type APP, and flame retarding efficiency significantly improves, and in polymeric material is fire-retardant when identical fire-retardant index, amount of flame-retardant agent reduces by 1%, is conducive to the combination property improving polymeric material; Purchased from Zibo Sai Da flame-retarding new material Co., Ltd.
Nano-calcium carbonate of the present invention, nano-calcium carbonate, also known as super fine calcium carbonate, can improve the rheological characteristic of plastic matrix, improves its mouldability; Can improve the brightness of material surface, wearing and tearing and impact strength, purchased from Kunshan Jin Kaidi Chemical Co., Ltd..
[detailed description of the invention]
The detailed description of the invention opening the processing method of refining calender of a kind of polyether-type TPU of the present invention composite is below provided.
Embodiment 1
The processing method driving refining calender of polyether-type TPU composite, its concrete steps are:
(1) batch mixing is dry: adopt ER-85A polyether-type TPU (the material proportion 1.12 that Kunshan Gao Ding Chemical Co., Ltd. produces, hardness 85shoreA), 200kg stirs in rotary drier, is heated to 100 DEG C of dryings 2 hours, note material surface appearance, prevent from separating out;
(2) become base and deaeration: the bag roller in No. 1 mill by dried polyether-type TPU particle and auxiliary agent, wherein, auxiliary agent accounts for 0.2% of the mass fraction of polyether TPU particle, initial roller temperature is set as 175 DEG C, two roller setting speed ratio is 1: 1.25, after forming soft tablet on TPU particle bag roller, by roller temperature drop to 165 DEG C, add drying particulate bag roller, the temperature that the self-friction utilizing particle itself to rotate produces is by material plasticizing, form colloid, after colloid temperature reaches 170 DEG C, striking adobe becomes block, itself heat is utilized to continue heat ageing 5 minutes, then the block TPU after aging is dropped into No. 2 mills and continue encapsulates, measuring tempeature is 170 DEG C time, striking adobe becomes block to drop in planetary extruder, planetary extruder design temperature is charge door 165 DEG C, screw rod 170 DEG C, export 175 DEG C, speed setting 12 ~ 36r/min, screw vacuum is set as-0.075MPa, extruded velocity is 600KG/h, discharging becomes translucent bubble-free cylinder, otherwise then to adjust vacuum and extrude speed ratio and reach optimum state.
(3) calendering and laminating: four-roll calender four roll temperature sets: 160 DEG C, No. 1 roller, 165 DEG C, No. 2 rollers, 165 DEG C, No. 3 rollers, 165 DEG C, No. 4 rollers, four roller velocity ratios are 1: 1.1: 1.25: 1.4, set four roller spacing, carry out cleaning and lubricating to roll surface with paraffin before feeding intake, drop into the optimum state material that planetary extruder is extruded, average thickness 0.15mm is measured after film forming, fit, material hauling speed is 12m/min, film door width is set as 2m, infrared heating is set as 90KW, infrared heating is adopted to make adhesive fabric planar survey temperature be 195 DEG C during production, during laminating, TPU colloid temperature is 170 DEG C, laminating rubber roll setting pressure is 50KG, knurling rolls setting pressure is 45KG, process velocity is 10m/min, base cloth thickness is 0.2mm, measuring gross thickness after pad pasting is 0.35mm, utilize water-cooled cooling, cooling and shaping, same colloid laminating operation is carried out at half-finished reverse side again after shaping, pad pasting 0.15mm, produce the finished product of polyether-type TPU composite.
Test result shows, with this explained hereafter polyether TPU out two-sided adhesive fabric pad pasting thickness evenly at 0.15 ± 0.01mm, gross thickness is 0.50mm, the adjustment of processing thickness rapidly, error is little, tensile strength test increases by 25% than former base cloth, tearing strength increases by 27%, TPU rolls cloth and adopts four roll calender method to produce, kind style varied, thickness door width can regulate arbitrarily, finished product finished product has the high waterproof of conventional thermoplastic's polyurethane, wear-resisting, ageing-resistant, the various superior function such as corrosion resistance, the use field of thermoplastic polyurethane and processing request scope are increased greatly, reach the demand more meeting market.
Comparative example 1
Compared with embodiment, be only not containing auxiliary agent, namely step (2) by dried polyether-type TPU particle bag roller in No. 1 mill, have any different, other is the same herein.
The tensile strength test of this product reduces by 20% than the product of embodiment 1, and tearing strength reduces by 15%, and Performance Ratio embodiment 1 declines a lot.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (1)
1. the processing method driving refining calender of polyether-type TPU composite, it is characterized in that, its concrete steps are:
(1) batch mixing is dry
Be specially by polyether TPU particle temperature be in 90 ~ 100 DEG C of drying boxes stirring at low speed dehydration 60 ~ 120 minutes, allow it fully dehydrate;
(2) base and deaeration is become
The bag roller in No. 1 mill by dried polyether-type TPU particle and auxiliary agent, wherein, auxiliary agent accounts for 0.2% of the mass fraction of polyether TPU particle, initial roller temperature is set as 175 DEG C, two roller setting speed ratio is 1:1.25, after forming soft tablet on TPU particle bag roller, by roller temperature drop to 165 DEG C, add drying particulate bag roller, the temperature that the self-friction utilizing particle itself to rotate produces is by material plasticizing, form colloid, after colloid temperature reaches 170 DEG C, striking adobe becomes block, itself heat is utilized to continue heat ageing 5 minutes, then the block TPU after aging is dropped into No. 2 mills and continue encapsulates, measuring tempeature is 170 DEG C time, striking adobe becomes block to drop in planetary extruder, planetary extruder design temperature is charge door 165 DEG C, screw rod 170 DEG C, export 175 DEG C, speed setting 12 ~ 36r/min, screw vacuum is set as-0.075MPa, extruded velocity is 600KG/h, discharging becomes translucent bubble-free cylinder,
Described auxiliary agent is nano composite ammonium phosphate, nano barium sulfate, nano silicon and nano-calcium carbonate;
(3) calendering and laminating
Four-roll calender design temperature is at 160 ~ 170 DEG C, drops into the polyether TPU material plastified, at roll surface film forming 0.10 ~ 0.15mm, with polyester filament base cloth compound under infrared preheating, fit under the pressure of 45 ~ 50KG, cooling and shaping, obtains polyether-type TPU composite.
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| CN103692754A (en) * | 2013-09-09 | 2014-04-02 | 中国人民解放军总后勤部建筑工程研究所 | Preparation method of TPU coated fabric |
| CN105216407A (en) * | 2015-10-20 | 2016-01-06 | 江苏增强新材料科技有限公司 | A kind of production method of polyether-type tent material |
| CN106894289B (en) * | 2017-01-25 | 2018-10-02 | 浙江环龙新材料科技有限公司 | A kind of compound polyether TPU film of CCK paper laminations with good stripping function |
| CN109722002A (en) * | 2017-10-31 | 2019-05-07 | 丹阳博亚新材料技术服务有限公司 | It is a kind of convenient for ventilative greenhouse film |
| CN107955365A (en) * | 2017-11-24 | 2018-04-24 | 广东聚航新材料研究院有限公司 | The TPU materials and rainbow illusion-colour thin-film sheet being bonded online for rainbow illusion-colour thin-film sheet |
| CN110903631A (en) * | 2019-11-13 | 2020-03-24 | 东莞市雄林新材料科技股份有限公司 | Chlorinated polyethylene modified TPU film and preparation method thereof |
| CN115972468B (en) * | 2022-11-30 | 2024-03-12 | 东方(天津)新材料科技有限公司 | Preparation method of anti-corrosion sleeve |
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| CN102093736A (en) * | 2011-03-07 | 2011-06-15 | 湖南福湘木业有限责任公司 | Wood-plastic composite material and preparation method thereof |
| CN102390152A (en) * | 2011-07-21 | 2012-03-28 | 无锡翔隆高分子面料有限公司 | Manufacture method of high-strength TPU (thermoplastic polyurethane) compound fabric |
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| JPH0881624A (en) * | 1994-09-14 | 1996-03-26 | Nippon Polyurethane Ind Co Ltd | Thermoplastic polyurethane resin composition, polyisocyanate composition, polyurethane elastic yarn using the same and its production |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102093736A (en) * | 2011-03-07 | 2011-06-15 | 湖南福湘木业有限责任公司 | Wood-plastic composite material and preparation method thereof |
| CN102390152A (en) * | 2011-07-21 | 2012-03-28 | 无锡翔隆高分子面料有限公司 | Manufacture method of high-strength TPU (thermoplastic polyurethane) compound fabric |
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Effective date of registration: 20190301 Address after: 211632 Huaijian Industrial Concentration Zone, Yinji Town, Jinhu County, Huaian City, Jiangsu Province Patentee after: Jiangsu Zengqiang New Material Science & Technology Co., Ltd. Address before: 211632 Huaijian Industrial Concentration Zone, Yinji Town, Jinhu County, Huaian City, Jiangsu Province Co-patentee before: Jiangsu Jinling Outdoors Gear Co., Ltd. Patentee before: Jiangsu Zengqiang New Material Science & Technology Co., Ltd. Co-patentee before: Jiangsu Jinling Net Industry Co., Ltd. |