CN103059391A - Toughened foamed master batch, and preparation method and application thereof - Google Patents
Toughened foamed master batch, and preparation method and application thereof Download PDFInfo
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- CN103059391A CN103059391A CN 201110322117 CN201110322117A CN103059391A CN 103059391 A CN103059391 A CN 103059391A CN 201110322117 CN201110322117 CN 201110322117 CN 201110322117 A CN201110322117 A CN 201110322117A CN 103059391 A CN103059391 A CN 103059391A
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Abstract
The invention belongs to the technical field of high polymers, and relates to a foamed master batch, and a preparation method and application thereof. The master batch is prepared from the following components in parts by weight: 10-25 parts of low-density polyethylene (LDPE), 20-30 parts of linear low-density polyethylene LLDPE, 10-20 parts of ethylene-vinyl acetate copolymer (EVA), 10-20 parts of foaming agent, 10-20 parts of dispersant, 0-10 parts of nucleating agent and 0.1-0.2 part of antioxidant. By using the LDPE and LLDPE as matrixes and the EVA as a carrier, the foaming agent and nucleating agent can be dispersed in the matrix resins by the dispersant to obtain the master batch. When being used in the polypropylene and polypropylene-base composite material, the master batch provided by the invention has better compatibility; the foaming agent and nucleating agent can be better dispersed in the polypropylene, thereby being beneficial to forming the uniform and fine microfoam structure; and the master batch can be added into the polypropylene material to obtain the low-density high-toughness polypropylene and polypropylene-base composite material product through extrusion or injection molding.
Description
Technical field
The invention belongs to technical field of macromolecules, relate to a kind of master batch and its production and use.
Background technology
Polypropylene (PP) resin has light weight, raw material sources are abundant, the ratio of performance to price is superior and good thermotolerance, chemical resistance, be easy to the characteristics such as recovery, is the fastest interchangeable heat plastic resin of in the world increase of production amount.At present, China PP resin has become the resin of output maximum, and that the PP resin industry faces consumption structure is single, the problem such as demand is not prosperous, product specification is low.Numerous production of resins enterprise is all actively adjusting the production thinking, and Development and Production high quality, high added value, marketable PP Pipe Compound are so that PP has larger using value and economic benefit.Wherein the research and development of polypropylene foam have also become focus in recent years, although polypropylene expanded product has good performance and application prospect, its development difficulty is very large.Present domestic its relevant, core technology capable of being industrialized that not yet have.The foaming of present domestic polypropylene material and behavior of polypropylene composites mainly realizes by physical blowing and two kinds of methods of chemical foaming; Moulding process mainly contains injection moulding, extrusion moulding and compression molding.Physical blowing to material produce complex process, production unit have relatively high expectations, cost is higher.The invention provides a kind of method by injection foaming can realize polypropylene material loss of weight and toughness reinforcing under the prerequisite that does not change technique.
Summary of the invention
The object of the present invention is to provide a kind of toughness reinforcing foaming master batch for polypropylene articles and its production and use.Master batch provided by the invention is be used to the chemical foaming plasticizing mother particle of extruding with injection moulding, can realize polypropylene material loss of weight and toughness reinforcing under the prerequisite that does not change technique.
For achieving the above object, the present invention is achieved through the following technical solutions.
A kind of agglomerate material, made by the component that comprises following its weight part:
10～25 parts of Low Density Polyethylenes (LDPE),
20～30 parts of linear low density polyethylenes (LLDPE),
10～20 parts of ethylene-vinyl acetate copolymers (EVA),
10～20 parts of whipping agents,
10～20 parts of dispersion agents,
0～10 part of nucleator,
0.1～0.2 part in oxidation inhibitor.
Described whipping agent is Cellmic C 121.
Described dispersion agent be in polyethylene wax or the stearic acid in one or both.
Described nucleator is one or both in nano-calcium carbonate or the nanometer calcium sulfate.
Described oxidation inhibitor is one or both in four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester (antioxidant 1010) or three [2,4-di-tert-butyl-phenyl] phosphorous acid ester (irgasfos 168).
A kind of preparation method of above-mentioned agglomerate material comprises following steps:
(1) takes by weighing according to the above ratio first LDPE, LLDPE, ethylene-vinyl acetate copolymer, whipping agent, dispersion agent, nucleator and oxidation inhibitor;
(2) step (1) raw material is mixed in high-speed mixer;
(3) with uniformly mixture banburying in Banbury mixer in the step (2), banburying finishes the master batch by single screw extrusion machine extruding pelletization system.
Mixing time is 5～10 minutes in the described step (2).
The Banbury mixer temperature is 100～120 ℃ in the described step (3), and the banburying time is 15～20 minutes.
The temperature range of each section of forcing machine is 100～120 ℃ in the described step (3).
A kind of with the purposes of above-mentioned master batch as the toughness reinforcing foaming master batch of polypropylene material.
Compared with prior art, the present invention has following beneficial effect:
The invention provides a kind of toughness reinforcing foaming master batch, can be used for all polypropylene materials and the matrix material take polypropylene as matrix, compared with prior art method cost provided by the invention is low, low to the production unit requirement, production technique simply can large-scale application.
The present invention take LDPE and LLDPE as matrix, EVA can be scattered in the master batch that obtains in the matrix resin with whipping agent and nucleator by dispersion agent as carrier.The master batch that the method makes is better for polypropylene and behavior of polypropylene composites consistency, whipping agent and nucleator can better be dispersed with the microbubble structure that helps form uniform and delicate in polypropylene, can be added in the polypropylene material by extruding or injection moulding obtains low high polypropylene and the behavior of polypropylene composites goods of toughness of density.
Embodiment
Describe the present invention in detail below in conjunction with each embodiment.
Embodiment 1
(1) takes by weighing 10 parts of Low Density Polyethylenes (weight part, lower same), 20 parts of linear low density polyethylenes, 20 parts of ethylene-vinyl acetate copolymers, 20 parts of Cellmic C 121s, 20 parts in PE wax, 10 parts of nano-calcium carbonates, antioxidant 1010 are 0.1 part, and irgasfos 168 is 0.11 part;
(2) above-mentioned raw materials is put into high-speed mixer and mixed taking-up after 5 minutes;
(3) banburying 20 minutes in Banbury mixer, banburying finishes the toughness reinforcing foaming master batch by single screw extrusion machine extruding pelletization system.The Banbury mixer Temperature Setting is 100～120 ℃, and the temperature range of each section of forcing machine is 100～120 ℃.
The pellet that obtains and polypropylene are made batten after by 5: 95 weight ratio blend in injection moulding machine, its performance test results sees Table 1.
Embodiment 2
(1) takes by weighing 25 parts of Low Density Polyethylenes (weight part, lower same), 30 parts of linear low density polyethylenes, 10 parts of ethylene-vinyl acetate copolymers, 10 parts of Cellmic C 121s, 15 parts of stearic acid, 10 parts of nano-calcium carbonates, antioxidant 1010 are that 0.1 part, irgasfos 168 are 0.1 part
(2) above-mentioned raw materials is put into high-speed mixer and mixed taking-up after 5 minutes;
(3) banburying 15 minutes in Banbury mixer, banburying finishes the toughness reinforcing foaming master batch by single screw extrusion machine extruding pelletization system.Described Banbury mixer Temperature Setting is 100～120 ℃, and the temperature range of each section of forcing machine is 100～120 ℃.
The pellet that obtains and polypropylene are made batten after by 5: 95 weight ratio blend in injection moulding machine, its performance test results sees Table 1.
Embodiment 3
(1) takes by weighing 20 parts of Low Density Polyethylenes (weight part, lower same), 25 parts of linear low density polyethylenes, 15 parts of ethylene-vinyl acetate copolymers, 15 parts of Cellmic C 121s, 15 parts of stearic acid, 10 parts of nano-calcium carbonates, antioxidant 1010 are 0.1 part, and irgasfos 168 is 0.1 part;
(2) above-mentioned raw materials is put into high-speed mixer and mixed taking-up after 10 minutes;
(3) banburying 15 minutes in Banbury mixer, banburying finishes the toughness reinforcing foaming master batch by single screw extrusion machine extruding pelletization system.The Banbury mixer Temperature Setting is 100～120 ℃, and the temperature range of each section of forcing machine is 100～120 ℃.
The pellet that obtains and polypropylene are made batten after by 5: 95 weight ratio blend in injection moulding machine, its performance test results sees Table 1.
Table 1
| Performance index | Testing standard | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tensile strength/MPa | GB/T 1040 | 18.8 | 19.8 | 19.3 |
| Elongation at break/% | GB/T 1040 | 78 | 83 | 89 |
| Socle girder notched Izod impact strength/kJ/m 2 | GB/T 1843 | 65.6 | 56.2 | 61.3 |
| Flexural strength/MPa | GB/T 9341 | 19.2 | 22.7 | 20.4 |
| Density | GB/T 1033 | 0.77 | 0.83 | 0.81 |
Can find out the toughness reinforcing and remarkable loss of weight that after polypropylene material adds foaming master batch, when guaranteeing other performances of material, can improve material by the method for injection foaming by table 1.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (10)
1. agglomerate material is characterized in that: made by the component that comprises following weight part:
10～25 parts of Low Density Polyethylenes,
20～30 parts of linear low density polyethylenes,
10～20 parts of ethylene-vinyl acetate copolymers,
10～20 parts of whipping agents,
10～20 parts of dispersion agents,
0～10 part of nucleator,
0.1～0.2 part in oxidation inhibitor.
2. agglomerate material according to claim 1, it is characterized in that: described whipping agent is Cellmic C 121.
3. agglomerate material according to claim 1 is characterized in that: described dispersion agent be in polyethylene wax or the stearic acid in one or both.
4. agglomerate material according to claim 1, it is characterized in that: described nucleator is one or both in nano-calcium carbonate or the nanometer calcium sulfate.
5. agglomerate material according to claim 1, it is characterized in that: described oxidation inhibitor is one or both in four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester or three [2,4-di-tert-butyl-phenyl] phosphorous acid ester.
6. the preparation method of arbitrary described agglomerate material among the claims 1-5 is characterized in that: comprise following steps:
(1) takes by weighing Low Density Polyethylene, linear low density polyethylene, ethylene-vinyl acetate copolymer, whipping agent, dispersion agent, nucleator and oxidation inhibitor in ratio claimed in claim 1;
(2) step (1) raw material is mixed in high-speed mixer;
(3) with uniformly mixture banburying in Banbury mixer in the step (2), banburying finishes the toughness reinforcing foaming master batch by single screw extrusion machine extruding pelletization system.
7. preparation method according to claim 6 is characterized in that: mixing time is 5～10 minutes in the described step (2).
8. preparation method according to claim 6, it is characterized in that: described Banbury mixer temperature is 100～120 ℃, the banburying time is 15～20 minutes.
9. preparation method according to claim 6, it is characterized in that: the temperature range of described each section of forcing machine is 100～120 ℃.
10. one kind with the purposes of arbitrary described master batch among the above-mentioned requirements 1-5 as the toughness reinforcing foaming master batch of polypropylene material.
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| CN103351477A (en) * | 2013-07-09 | 2013-10-16 | 衣庆晖 | Modified microsphere master batch of foaming agent and preparation method for modified microsphere master batch of foaming agent |
| CN104341667A (en) * | 2014-11-17 | 2015-02-11 | 武汉江南铁依环保产业发展有限公司 | Polyethylene halogen-free flame-retarding foaming master batch and preparation method thereof |
| CN104419102A (en) * | 2013-08-23 | 2015-03-18 | 上海杰事杰新材料(集团)股份有限公司 | Glass fiber reinforced polypropylene graft microcellular foaming material and preparation method thereof |
| CN104419101A (en) * | 2013-08-23 | 2015-03-18 | 上海杰事杰新材料(集团)股份有限公司 | Polypropylene graft microcellular foaming material and preparation method thereof |
| CN104817774A (en) * | 2015-04-02 | 2015-08-05 | 扬翔(上海)环保科技有限公司 | Foaming master batch and preparation method thereof |
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| CN105885184A (en) * | 2014-09-28 | 2016-08-24 | 安徽邦尼新材料有限公司 | Foamed masterbatch used for polyolefin and preparation method thereof |
| CN108623899A (en) * | 2017-03-26 | 2018-10-09 | 合肥杰事杰新材料股份有限公司 | A kind of PP composite material matt master and preparation method thereof |
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| CN103351477A (en) * | 2013-07-09 | 2013-10-16 | 衣庆晖 | Modified microsphere master batch of foaming agent and preparation method for modified microsphere master batch of foaming agent |
| CN104419102A (en) * | 2013-08-23 | 2015-03-18 | 上海杰事杰新材料(集团)股份有限公司 | Glass fiber reinforced polypropylene graft microcellular foaming material and preparation method thereof |
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| CN104341667A (en) * | 2014-11-17 | 2015-02-11 | 武汉江南铁依环保产业发展有限公司 | Polyethylene halogen-free flame-retarding foaming master batch and preparation method thereof |
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