CN102585325B - High density polyethylene (HDPE)-PA66 composite barrier material and preparation method thereof - Google Patents
High density polyethylene (HDPE)-PA66 composite barrier material and preparation method thereof Download PDFInfo
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- CN102585325B CN102585325B CN201110020749.9A CN201110020749A CN102585325B CN 102585325 B CN102585325 B CN 102585325B CN 201110020749 A CN201110020749 A CN 201110020749A CN 102585325 B CN102585325 B CN 102585325B
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Abstract
The invention relates to a high density polyethylene (HDPE)-PA66 composite barrier material and a preparation method thereof. The material comprises the following components by weight: 50 to 90 parts of high density polyethylene resin, 10 to 40 parts of nylon 66 ribbon-like filament and 0 part to 10 parts of compatilizer. Compared with the prior art, the nylon 66 resin for isolation in the product exists in the formation of the slice-shaped ribbon-like filament from beginning to end, maintains continuity and dispersibility of the nylon 66 ribbon-like filament as an isolation material in the particle material, and ensures completeness and evenness of the nylon 66 ribbon-like filament in a single-layer oil tank and obtained through the following blow molding process. Therefore, fuel oil can meet large resistance when penetrating through the wall of the oil tank due to the nylon 77 ribbon-like filament, so that fuel oil leakage of the fuel oil tank is reduced, and the isolation performance of the fuel oil tank is improved.
Description
Technical field
The invention belongs to technical field of polymer materials, relate to compound barrier material of a kind of HDPE-PA66 and preparation method thereof.
Background technology
High density polyethylene(HDPE) (HDPE) is as conventional wrapping material, there are a lot of advantages: rigidity, intensity, hardness, creep resistance, glossiness and resistance moisture permeability are all higher, there are good toughness, electrical insulating property, tear strength, lower temperature resistance etc., but the resistance O of HDPE
2, CO
2very poor with oil resistance penetrating quality, thus need to carry out modification to it, to adapt to the requirement of the barrier property that wrapping material are higher.
The method of the barrier property that is used at present improving high density polyethylene(HDPE) mainly contains: to frosting fluoridize, the process for treating surface such as sulfonation or spraying; The multi-layer co-extruded technology such as polyethylene layer, adhesive linkage, barrier layer; High density polyethylene(HDPE) and barrier resins stratiform blending and modifying technology.
Process for treating surface can cause environmental pollution, should not adopt; The multilayer hollow blow molding machine that multi-layer co-extruded technical requirements is special, high to equipment requirements, technology controlling and process difficulty, product cost is higher; The mechanism of stratiform blending and modifying technology is: the barrier resins taking blocking effect is dispersed phase distribution in external phase matrix resin, barrier layer and matrix composition multilayered structure, make in container solvent molecule penetrate approach and become full of twists and turns, increase the length of approach, thereby increased the barrier property of container.In the blend course of processing, if barrier resins is not enough stretched, and be distributed in matrix resin with larger particles shape, or, barrier resins is fractured into particulate owing to being strong shearing, does not form sheet, and the barrier property of blend all can not get improving.
In recent decades, polyolefine/barrier resins material purposes in packing business and automotive industry is more and more wider, studies and develops the polymer materials that has high barrier and be easy to realize industrialization and just seem more and more important.
Summary of the invention
Object of the present invention is exactly to provide a kind of preparation method simple in order to overcome the defect that above-mentioned prior art exists, and complete processing is easy to compound barrier material of HDPE-PA66 of controlling and preparation method thereof.
Object of the present invention can be achieved through the following technical solutions:
The compound barrier material of a kind of HDPE-PA66, this material comprises following component and parts by weight:
High-density polyethylene resin 50-90 part;
Nylon 66 flat filament 40-10 parts;
Compatilizer 0-10 part.
Described high-density polyethylene resin is commercially available HDPE resin.
Described nylon 66 flat filaments are continuous flat filaments that Nylon 66 is prepared from by plastic flat filament drawing machine.
Described compatilizer is grafts or the multipolymer of maleic anhydride, glycidyl methacrylate or vinylformic acid etc.
Grafts or the multipolymer of described maleic anhydride, glycidyl methacrylate or vinylformic acid etc. are selected from one or more in maleic anhydride grafted polyethylene, glycidyl methacrylate graft polyethylene, ethylene-acrylate-glycidyl methacrylate terpolymer.
A preparation method for the compound barrier material of above-mentioned HDPE-PA66, the method comprises the following steps:
(1) add high-density polyethylene resin, nylon 66 flat filaments and compatilizer according to said ratio;
(2) by high-density polyethylene resin in 170～190 DEG C of meltings, obtain high-density polyethylene resin melt;
(3) melt dispersion and the infiltration of the high-density polyethylene resin that nylon 66 flat filaments processes is contained to compatilizer, make nylon 66 flat filament complete wettings;
(4) pellet of corresponding length will be cut into after cooling the nylon of the complete wetting obtaining 66 flat filaments;
(5) pellet obtaining is carried out to blow molding, can obtain individual layer and intercept fuel tank.
In described step (3), nylon 66 flat filaments are drawn by creel, through tensioning roller adjustment of tonicity, enter melt impregnation die head, utilize the melt of compatilizer and high-density polyethylene resin that nylon 66 flat filaments are disperseed and infiltrated in die head.
Compared with prior art, the Nylon 66 taking blocking effect in the product that the present invention prepares exists with laminar flat filament form all the time, because nylon 66 flat filaments have certain surface-area, and in melt impregnation process, do not shear and control the temperature of high-density polyethylene resin melt, make nylon 66 flat filaments in the matrix material making, not suffer damage and be dispersed in matrix resin, keep continuity and the dispersiveness of barrier material nylon 66 flat filaments in pellet, also integrity and the homogeneity of nylon 66 flat filaments in the individual layer fuel tank that has ensured to obtain by follow-up blowing process, therefore, will be because the existence of these nylon 66 flat filaments is beset with resistance when fuel molecule penetrates oil tank wall, thereby reduce the fuel blow amount of fuel tank, improve the barrier property of fuel tank.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
(1) get the raw materials ready according to following component and content:
Commercially available high-density polyethylene resin 50kg, nylon 66 flat filament 40kg, maleic anhydride graft compatilizer 10kg;
(2) by high-density polyethylene resin in 190 DEG C of meltings, obtain high-density polyethylene resin melt;
(3) nylon 66 (PA66) flat filament is drawn by creel, through tensioning roller adjustment of tonicity, enter melt impregnation die head, in die head, utilize the melt of compatilizer and high-density polyethylene resin that nylon 66 flat filaments are disperseed and infiltrated, make nylon 66 flat filament complete wettings;
(4) pellet of corresponding length will be cut into after cooling the nylon of the complete wetting obtaining 66 flat filaments;
(5) pellet is sent in blow molding machine, blow molding can obtain the compound individual layer of HDPE-PA66 and intercept fuel tank.
Embodiment 2
(1) get the raw materials ready according to following component and content:
Commercially available high-density polyethylene resin 70kg, nylon 66 flat filament 25kg, maleic anhydride graft compatilizer 5kg;
(2) by high-density polyethylene resin in 180 DEG C of meltings, obtain high-density polyethylene resin melt;
(3) nylon 66 flat filaments are drawn by creel, through tensioning roller adjustment of tonicity, enter melt impregnation die head, in die head, utilize the melt of compatilizer and high-density polyethylene resin that nylon 66 flat filaments are disperseed and infiltrated, make nylon 66 flat filament complete wettings;
(4) pellet of corresponding length will be cut into after cooling the nylon of the complete wetting obtaining 66 flat filaments;
(5) pellet is sent in blow molding machine, blow molding can obtain the compound individual layer of HDPE-PA66 and intercept fuel tank.
Embodiment 3
(1) according to following component and content for 88kg, nylon 66 flat filament 10kg, maleic anhydride graft compatilizer 2kg;
(2) by high-density polyethylene resin in 170 DEG C of meltings, obtain high-density polyethylene resin melt;
(3) nylon 66 flat filaments are drawn by creel, through tensioning roller adjustment of tonicity, enter melt impregnation die head, in die head, utilize the melt of compatilizer and high-density polyethylene resin that nylon 66 flat filaments are disperseed and infiltrated, make nylon 66 flat filament complete wettings;
(4) pellet of corresponding length will be cut into after cooling the nylon of the complete wetting obtaining 66 flat filaments;
(5) pellet is sent in blow molding machine, blow molding can obtain the compound individual layer of HDPE-PA66 and intercept fuel tank.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various amendments to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.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 departing from improvement and the amendment that category of the present invention makes all should be within protection scope of the present invention.
Claims (6)
1. the compound barrier material of HDPE-PA66, is characterized in that: this material comprises following component and parts by weight:
High-density polyethylene resin 50-90 part;
Nylon 66 flat filament 40-10 parts;
Compatilizer 0-10 part;
The preparation method of the compound barrier material of described HDPE-PA66 comprises the steps:
(1) add high-density polyethylene resin, nylon 66 flat filaments and compatilizer according to above-mentioned proportioning;
(2) by high-density polyethylene resin in 170～190 DEG C of meltings, obtain high-density polyethylene resin melt;
(3) melt dispersion and the infiltration of the high-density polyethylene resin that nylon 66 flat filaments processes is contained to compatilizer, make nylon 66 flat filament complete wettings;
(4) pellet of corresponding length will be cut into after cooling the nylon of the complete wetting obtaining 66 flat filaments;
(5) pellet obtaining is carried out to blow molding, can obtain individual layer and intercept fuel tank.
2. the compound barrier material of HDPE-PA66 according to claim 1, is characterized in that: described high-density polyethylene resin is commercially available HDPE resin.
3. the compound barrier material of HDPE-PA66 according to claim 1, is characterized in that: described nylon 66 flat filaments are continuous flat filaments that Nylon 66 is prepared from by plastic flat filament drawing machine.
4. the compound barrier material of HDPE-PA66 according to claim 1, is characterized in that: described compatilizer is selected from one or more in maleic anhydride grafted polyethylene, glycidyl methacrylate graft polyethylene or ethylene-acrylate-glycidyl methacrylate terpolymer.
5. a preparation method for arbitrary described compound barrier material of HDPE-PA66 in claim 1-4, is characterized in that: the method comprises the following steps:
(1) add high-density polyethylene resin, nylon 66 flat filaments and compatilizer according to proportioning claimed in claim 1;
(2) by high-density polyethylene resin in 170～190 DEG C of meltings, obtain high-density polyethylene resin melt;
(3) melt dispersion and the infiltration of the high-density polyethylene resin that nylon 66 flat filaments processes is contained to compatilizer, make nylon 66 flat filament complete wettings;
(4) pellet of corresponding length will be cut into after cooling the nylon of the complete wetting obtaining 66 flat filaments;
(5) pellet obtaining is carried out to blow molding, can obtain individual layer and intercept fuel tank.
6. method according to claim 5, it is characterized in that: in described step (3), nylon 66 flat filaments are drawn by creel, through tensioning roller adjustment of tonicity, enter melt impregnation die head, in die head, utilize the melt of compatilizer and high-density polyethylene resin that nylon 66 flat filaments are disperseed and infiltrated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110020749.9A CN102585325B (en) | 2011-01-18 | 2011-01-18 | High density polyethylene (HDPE)-PA66 composite barrier material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110020749.9A CN102585325B (en) | 2011-01-18 | 2011-01-18 | High density polyethylene (HDPE)-PA66 composite barrier material and preparation method thereof |
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| CN102585325A CN102585325A (en) | 2012-07-18 |
| CN102585325B true CN102585325B (en) | 2014-12-03 |
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| CN104086848A (en) * | 2014-07-03 | 2014-10-08 | 合肥杰事杰新材料股份有限公司 | High-pressure molded UHMWPE/PA6 (ultrahigh molecular weight polyethylene/polyamide 6) alloy and preparation method thereof |
| CN112898768A (en) * | 2019-11-19 | 2021-06-04 | 上海龙程塑料制品有限公司 | High-performance barrier material and multilayer composite barrier structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330024A (en) * | 2001-07-25 | 2002-01-09 | 扬子石油化工股份有限公司 | Isolation-type paint can and its manufacture method and equipment |
| CN1618853A (en) * | 2003-11-17 | 2005-05-25 | 上海杰事杰新材料股份有限公司 | Continuous high strength terylene fiber reinforced thermoplastic resin composite material |
| CN1694923A (en) * | 2002-09-20 | 2005-11-09 | 通用电气公司 | Underhood components |
| CN1754908A (en) * | 2005-05-20 | 2006-04-05 | 湖南大学 | HDPE/PA-6 high-barrier polymer laminated blending material |
| CN1827671A (en) * | 2006-02-17 | 2006-09-06 | 常州市兴柏化工有限公司 | Continuous fiber reinforced composite materials, its production method and special equipment therefor |
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- 2011-01-18 CN CN201110020749.9A patent/CN102585325B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330024A (en) * | 2001-07-25 | 2002-01-09 | 扬子石油化工股份有限公司 | Isolation-type paint can and its manufacture method and equipment |
| CN1694923A (en) * | 2002-09-20 | 2005-11-09 | 通用电气公司 | Underhood components |
| CN1618853A (en) * | 2003-11-17 | 2005-05-25 | 上海杰事杰新材料股份有限公司 | Continuous high strength terylene fiber reinforced thermoplastic resin composite material |
| CN1754908A (en) * | 2005-05-20 | 2006-04-05 | 湖南大学 | HDPE/PA-6 high-barrier polymer laminated blending material |
| CN1827671A (en) * | 2006-02-17 | 2006-09-06 | 常州市兴柏化工有限公司 | Continuous fiber reinforced composite materials, its production method and special equipment therefor |
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