CN102050978B - Polyethylene composition for rotational moulding and preparation method of polyethylene composition - Google Patents
Polyethylene composition for rotational moulding and preparation method of polyethylene composition Download PDFInfo
- Publication number
- CN102050978B CN102050978B CN 200910213313 CN200910213313A CN102050978B CN 102050978 B CN102050978 B CN 102050978B CN 200910213313 CN200910213313 CN 200910213313 CN 200910213313 A CN200910213313 A CN 200910213313A CN 102050978 B CN102050978 B CN 102050978B
- Authority
- CN
- China
- Prior art keywords
- polyethylene composition
- rotational moulding
- oxidation inhibitor
- photostabilizer
- cnf
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention relates to a polyethylene composition for rotational moulding and a preparation method of the polyethylene composition. The polyethylene composition has excellent combination property and can simultaneously improve rigidity, toughness and environment stress cracking resistance of a material. The polyethylene composition comprises the following components in parts by weight: 100 parts of linear low density polyethylene, 0.1-1 part of surface modification nano carbon fiber, 0.05-1 part of antioxygen and 0.1-1 part of light stabilizer. The preparation method of the polyethylene composition is as follows: firstly, carrying out surface modification on nano carbon fiber with a surface modifier; and then carrying out fusing granulation on low density polyethylene resin, the surface modification nano carbon fiber, the light stabilizer and the antioxygen with a double-screw extruder, so as to obtain the polyethylene composition for the rotational moulding. In the polyethylene composition for the rotational moulding provided by the invention, the stretching strength, bending strength, impact property and environment stress cracking resistance are improved at different degrees, thereby achieving the effect of simultaneously increasing rigidity and toughness, and realizing excellent combination properties for the material.
Description
Technical field
The present invention relates to a kind of rotational moulding polyethylene composition, belong to technical field of polymer materials.
Background technology
Rotation molding claims again rotoforming, and its forming method is material directly to be added in the mould heat, and rotating mold makes material be applied to equably in the mould while melting simultaneously, obtains goods through cooling and demolding.Than techniques such as injection moulding, blow moldings, its outstanding advantage is the equipment and mold less investment, is applicable to the production of medium-and-large-sized and complex-shaped plastics, and product is internal stress free and not yielding etc. almost.Because the superiority of this technique, in recent years, rotational moulding development at home is very fast.
General rotomoulded articles is had relatively high expectations to shock-resistance, the environmental stress crack resistance (ESCR) of material, and linear low density polyethylene (LLDPE) all has suitable performance at this aspect two, in addition, it also has easy processing, corrosion-resistant, environmental protection, low cost and other advantages, and these characteristics impel LLDPE to be widely used in rotational moulding.
Yet the butylene copolymerization LLDPE of at present domestic production exists the problem that rigidity and toughness can not have concurrently, waits to improve at aspects such as flowability, heat-resisting creep properties, environmental stress crack resistances.As in the massive rotationally moulded products field, because rotational moulding part volume is large, load is heavy, must have enough rigidity, in use do not deform with assurance.For overcoming the relatively poor problem of LLDPE resin rigidity, manufacturer generally reaches the rigidity requirement by increasing wall thickness, and this has also increased production cost.Therefore, demand urgently developing a kind of aspect flowability, shock-resistance, rigidity and environmental stress crack resistance, have the rotational moulding LLDPE of overall equilbrium resin dedicated.
LLDPE is carried out modification, is one of effective ways that improve its Integrated using performance.In traditional method of modifying, there is employing glass fibre reinforced modified, HDPE, polypropylene or nylon blending modification.Though these method of modifying have improved the rigidity of material to a certain extent, reduced toughness, the environmental stress crack resistance of material, practical effect is not fine.
Summary of the invention
The invention provides a kind of rotational moulding polyethylene composition, excellent combination property can improve rigidity, toughness and the environmental stress crack resistance of material simultaneously.
The present invention also provides the preparation method of above-mentioned rotational moulding with polyethylene composition.
Described rotational moulding polyethylene composition comprises following component:
Linear low density polyethylene 100 weight parts;
Surface-modified nano carbon fiber 0.1-1 weight part;
Oxidation inhibitor 0.05-1 weight part;
Photostabilizer 0.1-1 weight part.
Described linear low density polyethylene (hereinafter to be referred as LLDPE) is a kind of public product, and is commercially available, and general density is 0.910～0.935g/cm
3, melt flow rate (MFR) is 2～20g/10min.
Modification obtains described surface-modified nano carbon fiber to carbon nano fiber (hereinafter to be referred as CNF) by tensio-active agent.Wherein, the mean diameter of described CNF is 70-260nm, and preferred average diameter is 150-240nm.As preferred version, the length distribution scope of CNF is 1-60 μ m.Known with surface-modifying agent to the method that carbon nano fiber carries out surface modification.Described surface-modifying agent is one or more mixtures in silane coupling agent, titante coupling agent or the aluminate class coupling agent, and wherein mixture can be mixed to get by arbitrary proportion.The surface-modifying agent consumption is the 0.1%-5% of carbon nano fiber weight.Those of ordinary skills can be according to specific requirement through testing diameter, the length of determining CNF, more excellent surface-modifying agent kind, the blending ratio when adopting kinds of surface properties-correcting agent and total surface-modifying agent consumption, and the concrete technology condition of surface modification.
Described photostabilizer is one or more mixtures in the UV light absorber such as benzophenone, benzotriazole category, acrylonitrile derivative class, triazines or the hindered amines radical scavenger, wherein mixture can be mixed to get by arbitrary proportion, and those of ordinary skills can determine more excellent photostabilizer, blending ratio through testing according to specific requirement.The concrete photostabilizer that can select can be: Octabenzone, 2-(2 '-hydroxyl-5 '-uncle's octyl phenyl) benzotriazole, 2-(2 '-hydroxyl-3 ', 5 '-di-tert-butyl-phenyl)-the 5-chlorinated benzotriazole, two (2,2,6,6-tetramethyl--4-piperidyl) sebate, two-hydroxyl-four-n-octyl group dihydroxy benaophenonel, poly-{ (6-morpholinyl-5-triazine-2,4--two bases) (2,2,6,6-tetramethyl-piperidyl) imido grpup hexa-methylene [(2,2,6, the 6-tetramethyl-piperidyl)-imido grpup], Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidine alcohols, poly--{ [6-[(1,1,3,3-tetramethyl butyl)-and imino-]-1,3,5-triazine-2,4-two bases] [2-(2,2,6, the 6-tetramethyl-piperidyl)-amino]-hexylidene-[4-(2,2,6, the 6-tetramethyl-piperidyl)-imino-], poly-[(6-morpholinyl-1,3,5-triazine-2, the 4-yl)-((2,2,6,6-tetramethyl--4-piperidyl) imido) hexane-((2,2,6,6-tetramethyl--4-piperidyl) imido)], N, N '-two (2,2,6,6-tetramethyl--4-piperidyl)-1, the same morpholine-2 of 6-hexanediamine, 4,6-three chloro-1, the polymkeric substance that methylates of 3,5-triazine, etc.
Described antioxidant is one or more mixtures in phenols, phosphorous acid esters, the triazines oxidation inhibitor, wherein mixture can be mixed to get by arbitrary proportion, and those of ordinary skills can determine more excellent oxidation inhibitor, blending ratio through testing according to specific requirement.The concrete antioxidant that can select can be: four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 1,3,5, three (3,5-di-tert-butyl-4-hydroxyl benzyl) guanamine, 4,6-(1H, 3H, should 5H) three ketones (be " 1,3,5-three (3; the 5-di-tert-butyl-4-hydroxyl benzyl) guanamine, 4,6-(1H; 3H, 5H) triketone "?), 1,3,5-trimethylammonium-2,4,6-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) benzene, 1,3,5-three (the 4-tertiary butyl-3-hydroxyl-2, the 6-dimethyl benzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H)-triketone, three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, two (2, the 4-di-tert-butyl-phenyl) pentaerythritol diphosphites, four (2, the 4-di-tert-butylphenol)-4,4 '-the xenyl diphosphites, etc.
Described rotational moulding with the preparation method of polyethylene composition is: with surface-modifying agent carbon nano fiber is carried out surface modification first, then with linear low density polyethylene resin, surface-modified nano carbon fiber, photostabilizer, oxidation inhibitor twin screw extruder melt pelletization, namely obtain the rotational moulding polyethylene composition.
As preferred version, with surface-modifying agent carbon nano fiber is carried out surface modification first, then linear low density polyethylene resin, surface-modified nano carbon fiber, photostabilizer, oxidation inhibitor are joined in the high-speed mixer and mixes, then under temperature 180-240 ℃ condition, use the twin screw extruder melt pelletization, namely obtain the rotational moulding polyethylene composition.
Carbon nano fiber is emerging in recent years a kind of quasi-one-dimensional nanometer material, than traditional fortifying fibre, because its diameter is between CNT (carbon nano-tube) and common carbon fibers, CNF has higher specific tenacity and specific modulus, preferably conduction, heat conduction, thermostability and fabulous surface size effect etc.Adopt CNF polymer-modified, under the low levels condition, can meet or exceed the high performance of filling the fiber-reinforced polymer of content of tradition, can improve simultaneously intensity, elasticity and the rigidity of polymkeric substance; Can widen the thermal transition temperature of polymkeric substance, improve heat-resisting creep properties; Can give the functional new features such as polymkeric substance optics, conduction, obstruct, electromagnetic shielding.
But, because CNF at high temperature prepares by the mode of hydrocarbon cracking gas mostly, a large amount of carbons of its surface enrichment and be unreactiveness, the length-to-diameter ratio and the specific surface area that add CNF are all larger, very easily mutually tangle, assemble agglomeratingly, in polymeric matrix, be difficult to Uniform Dispersion, directly have influence on the performance of CNF matrix material.
Adopt novel quasi-one-dimensional nanometer material-carbon nano fiber, in conjunction with oxidation inhibitor, photostabilizer, the collaborative over-all properties of improving LLDPE.For wetting property and the dispersiveness that improves CNF, adopt tensio-active agent that CNF is carried out surface treatment, make CNF Uniform Dispersion in the polyethylene matrix, greatly improve the mechanical property of the finished product.Compared with prior art, by rotational moulding polyethylene composition provided by the invention, aspect flowability, shock-resistance, rigidity and environmental stress crack resistance, there is the rotational moulding LLDPE of overall equilbrium resin dedicated, its tensile strength, flexural strength, impact property, environmental stress crack resistance have all had raising in various degree, wherein flexural strength and environmental stress crack resistance significantly improve, and have reached effect strong and unyielding and that increase, and material has comparatively excellent over-all properties.Said composition can be used for production hollow and complex-shaped rotomoulded articles, such as storage tank, container, spheroid, garden supplies, kitchen utensils, mechanical component etc., can have a wide range of applications in the rotation molding field, be specially adapted to rotational moulding part field that the rigidity of material is had relatively high expectations, such as large-scale thin wall parts, industrial part etc.In addition, this rotation molding polyethylene combination material is a kind of functional composite material, forms by adjustment and control system, can be applicable to the rotational moulding part of specific area, such as the product that particular requirement is arranged for functions such as barrier, light stability, electroconductibility.
Embodiment
In following examples, all umbers are weight part.
Embodiment 1
(mean diameter is 190nm with CNF, length distribution scope 1-60 μ m) and aminopropyl triethoxysilane coupling agent KH550 successively add super mixer, 80 ℃ of lower mixing 8 minutes, CNF is carried out surface modification, wherein the consumption of surface-modifying agent is 0.5% of CNF weight.Be 100 parts of LLDPE about 5g/10min with melt flow rate (MFR), 0.2 part of CNF after the surface modification, oxidation inhibitor four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.05 part of pentaerythritol ester, oxidation inhibitor three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester is 0.1 part, photostabilizer gathers-{ [6-[(1,1,3, the 3-tetramethyl butyl)-imino-]-1,3,5-triazines-2,4-two bases] [2-(2,2,6,6-tetramethyl-piperidyl)-amino]-hexylidene-[4-(2,2,6,6-tetramethyl-piperidyl)-imino-] 0.3 part join in the super mixer, mixed 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition, its mechanical property sees Table 1.
Embodiment 2
(mean diameter is 200nm with CNF, length distribution scope 1-60 μ m) and Di(dioctylpyrophosphato) ethylene titanate coupling agent NDZ-311 successively add super mixer, 80 ℃ of lower mixing 9 minutes, CNF is carried out surface modification, and wherein the consumption of surface-modifying agent is 1% of CNF weight.Be 100 parts of LLDPE about 5g/10min with melt flow rate (MFR), 0.5 part of CNF after the surface modification, oxidation inhibitor four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.05 part of pentaerythritol ester, oxidation inhibitor 1,3,5-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) guanamine, 4,6-(1H, 3H, 5H) 0.1 part of triketone, 0.2 part of two (2,4-di-tert-butyl-phenyl) pentaerythritol diphosphites of oxidation inhibitor, 0.3 part of photostabilizer Octabenzone, photostabilizer Succinic Acid and 4-hydroxyl-2,2,0.2 part in the polymkeric substance of 6,6-tetramethyl--1-piperidine alcohols joins in the super mixer, mixes 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition, its mechanical property sees Table 1.
Embodiment 3
(mean diameter is 210nm with CNF, length distribution scope 1-60 μ m) and distearyl acyl-oxygen aluminum isopropoxide acid esters coupling agent SG-Al821 successively add super mixer, 80 ℃ of lower mixing 10 minutes, CNF is carried out surface modification, wherein the consumption of surface-modifying agent is 3% of CNF weight.Be 100 parts of LLDPE about 5g/10min with melt flow rate (MFR), 0.8 part of CNF after the surface modification, oxidation inhibitor 1,3,5-three (the 4-tertiary butyl-3-hydroxyl-2, the 6-dimethyl benzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H) triketone is 0.7 part, 0.5 part of photostabilizer Octabenzone, 2-(2 '-hydroxyl-5 '-uncle's octyl phenyl) 0.4 part of benzotriazole joins in the super mixer, mixed 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition, its mechanical property sees Table 1.
Comparative example 1
Be 100 parts of LLDPE about 5g/10min with melt flow rate (MFR), oxidation inhibitor four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.1 part of pentaerythritol ester, oxidation inhibitor three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester is 0.1 part, photostabilizer gathers-{ [6-[(1,1,3, the 3-tetramethyl butyl)-imino-]-1,3,5-triazines-2,4-two bases] [2-(2,2,6,6-tetramethyl-piperidyl)-amino]-hexylidene-[4-(2,2,6,6-tetramethyl-piperidyl)-imino-] 0.3 part join in the super mixer, mixed 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition, its mechanical property sees Table 1.
Comparative example 2
Be 100 parts of LLDPE about 5g/10min with melt flow rate (MFR), oxidation inhibitor 1,3,5-three (the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl) 1,3,5-triazine-2,4,6-(1H, 3H, 5H)-0.5 part of triketone, photostabilizer two (2,2,6,6-tetramethyl--4-piperidyl) 0.7 part of sebate joins in the super mixer, mixed 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition, its mechanical property sees Table 1.
Embodiment 4
(mean diameter is 200nm with CNF, length distribution scope 1-60 μ m) and aminopropyl triethoxysilane coupling agent KH550 successively add super mixer, 80 ℃ of lower mixing 8 minutes, CNF is carried out surface modification, wherein the consumption of surface-modifying agent is 0.1% of CNF weight.Be 100 parts of LLDPE about 2g/10min, 0.1 part of CNF, the oxidation inhibitor 1 after the surface modification with melt flow rate (MFR), 3,5-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) guanamine, 4,6-(1H, 3H, 5H) 0.05 part of triketone, photostabilizer two (2,2,6,6-tetramethyl--4-piperidyl) 0.1 part of sebate joins in the super mixer, mixes 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition.
Embodiment 5
(mean diameter is 200nm with CNF, length distribution scope 1-60 μ m) and aminopropyl triethoxysilane coupling agent KH550 successively add super mixer, 80 ℃ of lower mixing 8 minutes, CNF is carried out surface modification, wherein the consumption of surface-modifying agent is 0.15% of CNF weight.Be 100 parts of LLDPE about 3.5g/10min with melt flow rate (MFR), 0.1 part of CNF after the surface modification, oxidation inhibitor 1,3,5-trimethylammonium-2,4,6-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) benzene is 0.2 part, oxidation inhibitor two (2, the 4-di-tert-butyl-phenyl) pentaerythritol diphosphites is 0.3 part, photostabilizer gathers { (6-morpholinyl-5-triazine-2,4--two bases) (2,2,6, the 6-tetramethyl-piperidyl) imido grpup hexa-methylene [(2,2,6,6-tetramethyl-piperidyl)-imido grpup] 0.3 part join in the super mixer, mixed 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition.
Embodiment 6
(mean diameter is 200nm with CNF, length distribution scope 1-60 μ m) and aminopropyl triethoxysilane coupling agent KH550, Di(dioctylpyrophosphato) ethylene titanate coupling agent NDZ-311 successively add super mixer, 80 ℃ of lower mixing 8 minutes, CNF is carried out surface modification, and wherein the consumption of surface-modifying agent is 3% of CNF weight.Be 100 parts of LLDPE about 10g/10min with melt flow rate (MFR), 0.5 part of CNF after the surface modification, oxidation inhibitor 1,3,5-three (3,5-di-tert-butyl-4-hydroxyl benzyl) guanamine, 4,6-(1H, 3H, 5H) 0.15 part of triketone, oxidation inhibitor four (2,4-di-tert-butylphenol)-4,4 '-0.3 part of xenyl diphosphites, photostabilizer gathers [(6-morpholinyl-1,3,5-triazine-2, the 4-yl)-((2,2,6,6-tetramethyl--4-piperidyl) imido) hexane-((2,2,6,6-tetramethyl--4-piperidyl) imido)] 0.3 part joins in the super mixer, mixes 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition.
Embodiment 7
(mean diameter is 200nm with CNF, length distribution scope 1-60 μ m) and distearyl acyl-oxygen aluminum isopropoxide acid esters coupling agent SG-Al821 successively add super mixer, 80 ℃ of lower mixing 8 minutes, CNF is carried out surface modification, wherein the consumption of surface-modifying agent is 3% of CNF weight.Be 100 parts of LLDPE about 12g/10min with melt flow rate (MFR), 0.6 part of CNF after the surface modification, oxidation inhibitor 1,3,5-three (3,5-di-tert-butyl-4-hydroxyl benzyl) guanamine, 4,6-(1H, 3H, 5H) 0.15 part of triketone, oxidation inhibitor four (2,4-di-tert-butylphenol)-4,4 '-0.3 part of xenyl diphosphites, photostabilizer gathers [(6-morpholinyl-1,3,5-triazine-2, the 4-yl)-((2,2,6,6-tetramethyl--4-piperidyl) imido) hexane-((2,2,6,6-tetramethyl--4-piperidyl) imido)] 0.3 part joins in the super mixer, mixes 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition.
Embodiment 8
(mean diameter is 200nm with CNF, length distribution scope 1-60 μ m) and aminopropyl triethoxysilane coupling agent KH550 successively add super mixer, 80 ℃ of lower mixing 8 minutes, CNF is carried out surface modification, wherein the consumption of surface-modifying agent is 3% of CNF weight.Be 100 parts of LLDPE about 12g/10min with melt flow rate (MFR), CNF0.3 part after the surface modification, oxidation inhibitor 1,3,5-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) guanamine, 4,6-(1H, 3H, 5H) triketone is 0.2 part, 0.5 part of two (2,4-di-tert-butyl-phenyl) pentaerythritol diphosphites of oxidation inhibitor, photostabilizer 2-(2 '-hydroxyl-3 ', 5 '-di-tert-butyl-phenyl)-0.6 part of 5-chlorinated benzotriazole joins in the super mixer, mixed 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition.
Embodiment 9
(mean diameter is 200nm with CNF, length distribution scope 1-60 μ m) and aminopropyl triethoxysilane coupling agent KH550 successively add super mixer, 80 ℃ of lower mixing 8 minutes, CNF is carried out surface modification, wherein the consumption of surface-modifying agent is 5% of CNF weight.Be 100 parts of LLDPE, the CNF1 part after the surface modification, oxidation inhibitor four [β-(3 about 20g/10min with melt flow rate (MFR), the 5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.3 part of pentaerythritol ester, oxidation inhibitor three (2, the 4-di-tert-butyl-phenyl) 1 part of 0.7 part of phosphorous acid ester, photostabilizer two-hydroxyl-four-n-octyl group dihydroxy benaophenonel join in the super mixer, mixed 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition.
Embodiment 10
(mean diameter is 200nm with CNF, length distribution scope 1-60 μ m) and aminopropyl triethoxysilane coupling agent KH550 successively add super mixer, 80 ℃ of lower mixing 8 minutes, CNF is carried out surface modification, wherein the consumption of surface-modifying agent is 5% of CNF weight.Be 100 parts of LLDPE about 20g/10min with melt flow rate (MFR), CNF0.8 part after the surface modification, oxidation inhibitor 1,3,5-three (the 4-tertiary butyl-3-hydroxyl-2, the 6-dimethyl benzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H)-0.2 part of triketone, oxidation inhibitor two (2, the 4-di-tert-butyl-phenyl) pentaerythritol diphosphites is 0.3 part, photostabilizer 2-(2 '-hydroxyl-3 ', 5 '-di-tert-butyl-phenyl)-0.5 part of 5-chlorinated benzotriazole, photostabilizer two (2,2,6,6-tetramethyl--4-piperidyl) 0.5 part of sebate joins in the super mixer, mixes 5 minutes, then under 180～240 ℃ of conditions of conventional machining temperature, through the twin screw extruder extruder grain, obtain the rotational moulding polyethylene composition.
Table 1 rotational moulding contrasts with the polyethylene composition mechanical property
Claims (9)
1. rotational moulding polyethylene composition is characterized in that comprising following component:
Linear low density polyethylene 100 weight parts;
Surface-modified nano carbon fiber 0.1-1 weight part;
Oxidation inhibitor 0.05-1 weight part;
Photostabilizer 0.1-1 weight part.
2. rotational moulding polyethylene composition as claimed in claim 1, it is characterized in that modification obtains described surface-modified nano carbon fiber to carbon nano fiber by tensio-active agent, described tensio-active agent is one or more mixtures in silane coupling agent, titante coupling agent or the aluminate class coupling agent.
3. rotational moulding polyethylene composition as claimed in claim 2, the consumption that it is characterized in that described tensio-active agent is the 0.1%-5% of carbon nano fiber weight.
4. rotational moulding polyethylene composition as claimed in claim 2, the mean diameter that it is characterized in that described carbon nano fiber is 70-260nm.
5. such as each described rotational moulding polyethylene composition among the claim 1-4, the melt flow rate (MFR) that it is characterized in that described linear low density polyethylene is 2～20g/10min.
6. such as each described rotational moulding polyethylene composition among the claim 1-4, it is characterized in that described photostabilizer is one or more mixtures in benzophenone, benzotriazole category, acrylonitrile derivative class, triazines UV light absorber or the hindered amines radical scavenger.
7. such as each described rotational moulding polyethylene composition among the claim 1-4, it is characterized in that described antioxidant is one or more mixtures in phenols, phosphorous acid esters, the triazines oxidation inhibitor.
8. use the preparation method of polyethylene composition such as each described rotational moulding among the claim 1-7, it is characterized in that with tensio-active agent carbon nano fiber being carried out surface modification first, then with linear low density polyethylene, surface-modified nano carbon fiber, photostabilizer, oxidation inhibitor twin screw extruder melt pelletization, namely obtain the rotational moulding polyethylene composition.
9. rotational moulding as claimed in claim 8 is with the preparation method of polyethylene composition, it is characterized in that with tensio-active agent carbon nano fiber being carried out surface modification first, then linear low density polyethylene, surface-modified nano carbon fiber, photostabilizer, oxidation inhibitor are joined in the high-speed mixer and mixes, then under temperature 180-240 ℃ condition, use the twin screw extruder melt pelletization, namely obtain the rotational moulding polyethylene composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910213313 CN102050978B (en) | 2009-11-02 | 2009-11-02 | Polyethylene composition for rotational moulding and preparation method of polyethylene composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910213313 CN102050978B (en) | 2009-11-02 | 2009-11-02 | Polyethylene composition for rotational moulding and preparation method of polyethylene composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102050978A CN102050978A (en) | 2011-05-11 |
| CN102050978B true CN102050978B (en) | 2013-01-02 |
Family
ID=43955812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910213313 Active CN102050978B (en) | 2009-11-02 | 2009-11-02 | Polyethylene composition for rotational moulding and preparation method of polyethylene composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102050978B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571026A (en) * | 2012-07-20 | 2014-02-12 | 中国石油化工股份有限公司 | Aging-resistant polyethylene resin specially used for rotational moulding, and preparation method thereof |
| CN102807763A (en) * | 2012-07-27 | 2012-12-05 | 苏州市兴吴工程塑胶有限公司 | Formula of carbon nanofiber plastic |
| CN102816372A (en) * | 2012-08-15 | 2012-12-12 | 中国第一汽车股份有限公司 | Special high impact weathering resistance vehicle rotational moulding plastic tool box material |
| CN104292595B (en) * | 2013-07-18 | 2016-08-24 | 中国石油化工股份有限公司 | High rigid linear low density polyethylene (LDPE) casting resin |
| CN103435904A (en) * | 2013-09-18 | 2013-12-11 | 中国石油化工股份有限公司 | Antistatic high-rigidity rotational-moulded polyethylene composition and preparation method thereof |
| CN104974409A (en) * | 2014-04-11 | 2015-10-14 | 中国石化扬子石油化工有限公司 | Injection moulding-use high-rigidity linear low-density polyethylene resin and preparation method thereof |
| CN104231408A (en) * | 2014-08-07 | 2014-12-24 | 浙江瑞堂塑料科技有限公司 | High-weather-resistant rotationally-moulded polyethylene material and preparation method thereof |
| CN104893084B (en) * | 2015-05-28 | 2017-12-05 | 天津市禹红建筑防水材料有限公司 | A kind of fibre reinforced polyethylene waterproof roll and preparation method |
| CN106317586A (en) * | 2015-06-30 | 2017-01-11 | 中国石油化工股份有限公司 | Injection molded antistatic high-rigidity LLDPE (Linear Low Density Polyethylene) resin and preparation method thereof |
| JP2023515403A (en) * | 2020-02-17 | 2023-04-13 | ノバ ケミカルズ（インターナショナル）ソシエテ アノニム | Composition for rotomolding |
| CN114426719B (en) * | 2020-10-29 | 2023-06-16 | 中国石油化工股份有限公司 | Rotational molding polyethylene composition and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524899A (en) * | 2003-02-28 | 2004-09-01 | 中国石油天然气股份有限公司 | Special material for crosslinked polyethylene for rotational molding and preparation method thereof |
-
2009
- 2009-11-02 CN CN 200910213313 patent/CN102050978B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524899A (en) * | 2003-02-28 | 2004-09-01 | 中国石油天然气股份有限公司 | Special material for crosslinked polyethylene for rotational molding and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张崇方.碳纤维在聚乙烯复合材料中的应用.《北京科技大学学报》.1989,第11卷(第4期),354-357. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102050978A (en) | 2011-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102050978B (en) | Polyethylene composition for rotational moulding and preparation method of polyethylene composition | |
| CN103554626B (en) | A kind of fretting map polyethylene based wood-plastic composite material and preparation method thereof | |
| CN1216101C (en) | Preparation method of toughness enhanced and reinforced polybutanediol terephthalate nanometer composition | |
| CN104592632B (en) | High tenacity high modulus polypropylene composite and preparation method thereof | |
| CN103992561B (en) | A kind of polyolefin masterbatch prepares the method for pipe fitting | |
| CN103937093B (en) | A kind of long glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN105623097A (en) | Nanometer-material-compounded long-glass-fiber-reinforced polypropylene material and preparing method thereof | |
| CN102241860A (en) | Reinforced polypropylene material and preparation method thereof | |
| CN109679205A (en) | A kind of composite polyolefine material and preparation method thereof of high intensity that resist warping | |
| CN104802482A (en) | Three-layer co-extruded PP (polypropylene)/PE (polyethylene)/PP upward-blown film and preparation method thereof | |
| CN106317586A (en) | Injection molded antistatic high-rigidity LLDPE (Linear Low Density Polyethylene) resin and preparation method thereof | |
| CN105670114A (en) | Low-cost warping-free high-flame-retardant polypropylene furniture material and preparation method thereof | |
| CN103435904A (en) | Antistatic high-rigidity rotational-moulded polyethylene composition and preparation method thereof | |
| CN106566176A (en) | Application of polyester as a flow promoter in improving glossiness of reinforced ABS composition | |
| CN107974020A (en) | A kind of reinforced aromatic vinyl copolymer compositions and its application | |
| CN106543622A (en) | Polyester is as flow improver additive in the purposes for improving enhancing ASA composition glossiness | |
| CN107200919A (en) | A kind of injection grade micro-foaming polypropylene composite material and preparation method thereof | |
| CN105602117A (en) | PP (polypropylene) nano plastic and preparation method thereof | |
| CN107964202A (en) | Polyester is improving the purposes of reinforced aromatic vinyl copolymer compositions glossiness as flow improver additive | |
| CN104558818B (en) | Polypropene composition of dimensionally stable and preparation method thereof | |
| CN104559007A (en) | High-glossiness scratch-resistant polypropylene material and preparation method thereof | |
| CN109776952A (en) | A kind of glass fiber reinforced polypropylene/nylon 6 alloy material and preparation method thereof | |
| CN104974409A (en) | Injection moulding-use high-rigidity linear low-density polyethylene resin and preparation method thereof | |
| CN104194123B (en) | The preparation method of polyacrylonitrile fibre/high-density polyethylene composite material | |
| CN107151437A (en) | A kind of fibre reinforced polyketone composite and its preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |