CN102816362B - Long-acting anti-aging masterbatch used for polyethylene films and preparation method for long-acting anti-aging masterbatch - Google Patents
Long-acting anti-aging masterbatch used for polyethylene films and preparation method for long-acting anti-aging masterbatch Download PDFInfo
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- CN102816362B CN102816362B CN201210317923.0A CN201210317923A CN102816362B CN 102816362 B CN102816362 B CN 102816362B CN 201210317923 A CN201210317923 A CN 201210317923A CN 102816362 B CN102816362 B CN 102816362B
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Abstract
The invention discloses a long-acting anti-aging masterbatch used for a polyethylene film. The masterbatch is made of, by weight, 50-85 parts of polyethylene, 2-15 parts of ultraviolet adsorbent, 0.01-2 parts of initiator, 2-15 parts of light stabilizer, 1-10 parts of antioxidant and 1-12 parts of processing auxiliary. The invention further discloses a preparation method for the long-acting anti-aging masterbatch used for the polyethylene films. The preparation method includes following steps: 1), uniformly mixing the polyethylene, the processing auxiliary of 50-70wt%, the ultraviolet adsorbent and the initiator, subjecting the mixture to melt extrusion, cooling and granulating to obtain a polyethylene light-adsorption graft copolymer; and 2), uniformly mixing the polyethylene light-adsorption graft copolymer, remaining processing auxiliary, the antioxidant and the light stabilizer, and subjecting the mixture to melt extrusion, cooling and graduating to obtain the long-acting anti-aging masterbatch used for the polyethylene films. The masterbatch prepared by the method is good in long-acting anti-aging effect, stable in performance and widely suitable for the polyethylene films with high antiaging requirements such as packaging materials and agricultural films, and the packaging materials mainly include load-bearing packaging materials, handbags, automatic packaging films and the like.
Description
Technical field
The present invention relates to a kind of long-acting anti-aging master batch and preparation method thereof for polyethylene film.
Background technology
Polyethylene (PE) is a kind of general thermoplastic macromolecule material, its molecular weight is high, the degree of branching is little, easily machine-shaping, and with its excellent mechanical property, resistance to chemical corrosion and electrical insulating property, be widely used in film, telecommunication cable, anticorrosion sheath material, various plastics and wrapping material etc.But PE is as a kind of macromolecular material, on molecular chain, often there are methyl branch, longer alkyl branches, even also have cross chain; In chain structure, have three class carbon-carbon double bonds at least: the two keys of chain terminal double bond, chain internal double bond and chain side.Polymkeric substance is often subject to the effect of the external environment factors such as light, heat, oxygen, ozone, moisture content, industrial harmful gas, microorganism and is aging in processing, storage and use procedure, the existence of side chain and two keys, accelerated oxygen absorption, cause the aging of PE, especially more remarkable for the larger goods of film class surface-area.
At present, polyethylene film is generally to improve its ageing-resistant performance by adding photostabilizer and light absorber, most photostabilizers and light absorber are low molecular compound, volatility is higher, in processing or use procedure, easily the surface escaping from polyethylene film volatilizees, simultaneously because low molecular material and macromolecular material differ far away on molecular structure, polyethylene film thin list area is large, while making low molecular photostabilizer and light absorber add in polyethylene film, be easy to from film to external migration, thereby can play obvious effect while making photostabilizer in the early stage, but the passing along with duration of service, photostabilizer migration precipitation from polyethylene film gradually, cause mould material under action of ultraviolet radiation, performance declines rapidly.In order to address the above problem, photostabilizer is rested in polyethylene film for a long time, need to have compared with the photostabilizer of high molecular weight directly and they react, become a part for macromolecular chain, bring into play light stabilization simultaneously.So, invent a kind of polyethylene film just very necessary with long-acting anti-aging master batch.
Summary of the invention
The object of this invention is to provide a kind of long-acting anti-aging master batch and preparation method thereof for polyethylene film.
The technical solution used in the present invention is:
A long-acting anti-aging master batch for polyethylene film, its raw material by following mass parts forms: the UV absorption agent of the PE of 50-85 part, 2-15 part, the initiator of 0.01-2 part, the photostabilizer of 2-15 part, the processing aid of the oxidation inhibitor of 1-10 part, 1-12 part.
Described UV absorption agent is the benzophenone that contains carbon-carbon double bond.
Described initiator comprises two (tert-butyl hydroperoxide sec.-propyl) benzene, dicumyl peroxide, benzoyl peroxide, ditertiary butyl peroxide, cyclohexanone peroxide.
Described photostabilizer comprises photostabilizer 944,770,788,2020,622,783.
Described oxidation inhibitor comprises 1010,168,1076, TNPP, DLTP, 264,300.
Described processing aid comprises calcium stearate, Magnesium Stearate, Zinic stearas, PE wax, microcrystalline wax, stearic acid, oleylamide, EBS.
A preparation method for long-acting anti-aging master batch for polyethylene film, comprises the following steps:
1) processing aid of PE, 50-70wt%, UV absorption agent, initiator are mixed, then melt extrude, cooling, granulation obtains polyethylene photoabsorption grafts;
2) polyethylene photoabsorption grafts, remaining processing aid, oxidation inhibitor, photostabilizer are mixed, then melt extrude, cooling, granulation.
The invention has the beneficial effects as follows: masterbatch prepared by the present invention has good long-acting antiageing effect, stable performance simultaneously, can be widely used in anti-aging polyethylene film of having relatively high expectations, as wrapping material and agricultural film aspect, wrapping material mainly contain: load-bearing packing, handbag and automatic packaging film etc.Particularly need the product using under environment out of doors, can improve the ageing resistance of product, increase the service life.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further:
embodiment 1:
A long-acting anti-aging master batch for polyethylene film, its table composed as follows of filling a prescription:
embodiment 2:
A long-acting anti-aging master batch for polyethylene film, its table composed as follows of filling a prescription:
embodiment 3:
A long-acting anti-aging master batch for polyethylene film, its table composed as follows of filling a prescription:
embodiment 4:
A long-acting anti-aging master batch for polyethylene film, its table composed as follows of filling a prescription:
embodiment 5:
A long-acting anti-aging master batch for polyethylene film, its table composed as follows of filling a prescription:
With the formula of embodiment, make long-acting anti-aging master batch for polyethylene film, its preparation process is as follows:
1) calcium stearate (being that calcium stearate used is the 50-70wt% of two steps PE wax total amount used), 2-hydroxyl-4-acryloxy benzophenone, two (tert-butyl hydroperoxide sec.-propyl) benzene of the PE wax of PE LD607,50-70wt% (being that PE wax used is the 50-70wt% of two steps PE wax total amount used), 50-70wt% are mixed, in forcing machine, melt extrude again, cooling, granulation, obtains polyethylene photoabsorption grafts; Wherein, the temperature of forcing machine is 160-180 ℃, and screw speed is 120-130r/min;
2) polyethylene photoabsorption grafts, remaining PE wax, remaining calcium stearate, irgasfos 168, antioxidant 1010, photostabilizer 944 are mixed, then melt extrude, cooling, granulation; Wherein, the temperature of forcing machine is 130-140 ℃, and screw speed is 200-220r/min;
The long-acting anti-aging master batch for polyethylene film that utilizes the formula of embodiment 1 ~ 5 to make is blow molded into 0.02mm film according to following proportioning and technique on polyvinyl blow molding machine:
Polyethylene film formula: long-acting anti-aging master batch prepared by the embodiment 1-5 of PE LD607, the 4wt% of 95.5wt%, the white oil of 0.2wt%, the antioxidant 1010 of the irgasfos 168 of 0.1wt%, 0.1wt%.
Corresponding processing temperature parameter is: die head temperature: 135 ℃; Linker temperature: 135 ℃; The temperature of two machine barrels: 140 ℃; Main frame frequency conversion: 11.8Hz; Draw and get frequency conversion: 8.6 Hz.
The aging resistance of polyethylene film sees attached list 1; Experiment test condition is: BLUESTAR--X65 type xenon lamp artificial accelerated aging case, is undertaken by GB/T 16422.2.
Claims (2)
1. a long-acting anti-aging master batch for polyethylene film, is characterized in that: its raw material by following mass parts forms: the PE LD607 of 78.5 parts, the PE wax of 5 parts, the calcium stearate of 2 parts, 2-hydroxyl-4-acryloxy benzophenone of 5 parts, two (tert-butyl hydroperoxide sec.-propyl) benzene of 0.5 part, the irgasfos 168 of 2 parts, the antioxidant 1010 of 2 parts, the photostabilizer 944 of 5 parts; Or its raw material by following mass parts forms: the PE LD607 of 85 parts, the PE wax of 5 parts, the calcium stearate of 2 parts, 2-hydroxyl-4-acryloxy benzophenone of 5 parts, two (tert-butyl hydroperoxide sec.-propyl) benzene of 0.8 part, the irgasfos 168 of 3 parts, the antioxidant 1010 of 3 parts, the photostabilizer 944 of 4 parts; Or its raw material by following mass parts forms: the PE LD607 of 75 parts, the PE wax of 6 parts, the calcium stearate of 2 parts, 2-hydroxyl-4-acryloxy benzophenone of 10 parts, two (tert-butyl hydroperoxide sec.-propyl) benzene of 1.1 parts, the irgasfos 168 of 4 parts, the antioxidant 1010 of 4 parts, the photostabilizer 944 of 8 parts; Or its raw material by following mass parts forms: the PE LD607 of 67 parts, the PE wax of 5 parts, the calcium stearate of 1.5 parts, 2-hydroxyl-4-acryloxy benzophenone of 5 parts, two (tert-butyl hydroperoxide sec.-propyl) benzene of 0.7 part, the irgasfos 168 of 3 parts, the antioxidant 1010 of 3 parts, the photostabilizer 944 of 5 parts; Or its raw material by following mass parts forms: the PE LD607 of 55 parts, the PE wax of 1 part, the calcium stearate of 1 part, 2-hydroxyl-4-acryloxy benzophenone of 3 parts, two (tert-butyl hydroperoxide sec.-propyl) benzene of 0.2 part, the irgasfos 168 of 1 part, the antioxidant 1010 of 1 part, the photostabilizer 944 of 2 parts.
2. the preparation method of long-acting anti-aging master batch for a kind of polyethylene film claimed in claim 1, is characterized in that: comprise the following steps:
1) calcium stearate of the PE wax of PE LD607,50-70wt%, 50-70wt%, 2-hydroxyl-4-acryloxy benzophenone, two (tert-butyl hydroperoxide sec.-propyl) benzene are mixed, in forcing machine, melt extrude again, cooling, granulation, obtains polyethylene photoabsorption grafts; Wherein, the temperature of forcing machine is 160-180 ℃, and screw speed is 120-130r/min;
2) polyethylene photoabsorption grafts, remaining PE wax, remaining calcium stearate, irgasfos 168, antioxidant 1010, photostabilizer 944 are mixed, then melt extrude, cooling, granulation; Wherein, the temperature of forcing machine is 130-140 ℃, and screw speed is 200-220r/min.
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| CN105542287A (en) * | 2016-03-07 | 2016-05-04 | 天津市鸿大色母粒有限公司 | Master batch for plastic film products and manufacturing method of master batch |
| CN106832533A (en) * | 2017-03-15 | 2017-06-13 | 吴军 | Overwater photovoltaic floating body stand material and preparation process thereof |
| CN107501475A (en) * | 2017-08-16 | 2017-12-22 | 陕西理工大学 | Polyethylene green house film is modified the preparation method with grafting PE weatherability master batches |
| CN111253655A (en) * | 2019-12-23 | 2020-06-09 | 浙江瑞堂塑料科技股份有限公司 | High-weather-resistance polyethylene composite material and preparation method thereof |
| CN114940821A (en) * | 2021-07-23 | 2022-08-26 | 上海鑫亘环保科技有限公司 | TPU film and preparation method thereof |
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| CN101007876A (en) * | 2007-01-22 | 2007-08-01 | 白山市喜丰塑业有限公司 | Polyethylene film dedicated for genseng and production technology thereof |
| CN101899179A (en) * | 2010-05-29 | 2010-12-01 | 甘肃大禹节水股份有限公司 | Production technology of special water dropper for preventing root system from being invaded by subsurface drop irrigation |
| CN102432945A (en) * | 2011-10-28 | 2012-05-02 | 甘肃福雨塑业有限责任公司 | Dry farming anti-aging long-acting autumn mulching film and preparation process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101007876A (en) * | 2007-01-22 | 2007-08-01 | 白山市喜丰塑业有限公司 | Polyethylene film dedicated for genseng and production technology thereof |
| CN101899179A (en) * | 2010-05-29 | 2010-12-01 | 甘肃大禹节水股份有限公司 | Production technology of special water dropper for preventing root system from being invaded by subsurface drop irrigation |
| CN102432945A (en) * | 2011-10-28 | 2012-05-02 | 甘肃福雨塑业有限责任公司 | Dry farming anti-aging long-acting autumn mulching film and preparation process thereof |
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