CN102617922A - High-performance nano-composite material and preparation method thereof - Google Patents
High-performance nano-composite material and preparation method thereof Download PDFInfo
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- CN102617922A CN102617922A CN2012101163562A CN201210116356A CN102617922A CN 102617922 A CN102617922 A CN 102617922A CN 2012101163562 A CN2012101163562 A CN 2012101163562A CN 201210116356 A CN201210116356 A CN 201210116356A CN 102617922 A CN102617922 A CN 102617922A
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- hydrotalcite
- ethylene acrylic
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- composite material
- density polyethylene
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Abstract
The invention discloses a high-performance nano-composite material and a preparation method thereof. The high-performance nano-composite material comprises the following components in part by weight: 100 parts of high-density polyethylene, 2 to 10 parts of hydrotalcite and 20 parts of ethylene-acrylic acid copolymer. Ethylene and acrylic acid are used as a compatilizer and a toughening agent, so that the contradiction between the rigidity and the toughness of the composite material is resolved, and the toughness of the prepared high-density polyethylene/hydrotalcite nano-composite material can be greatly improved; in this way, the hydrotalcite which is not organically modified can be adopted, so that the production cost is reduced, and side reactions are avoided in melt blending; and the preparation method is simple and easy operate, and can be used for industrialized production, and the application value and application range of the high-density polyethylene/hydrotalcite nano-composite material are further developed.
Description
Technical field
The present invention relates to material science, especially a kind of macromolecular material and preparation method thereof.
Background technology
Polyolefine/houghite nano composite material is because have the mechanical property more more excellent than conventional composite materials, barrier property, thermostability and flame retardant properties, and causes people's extensive concern.In the preparation of high density polyethylene(HDPE) (HDPE)/hydrotalcite (LDH) nano composite material, that add usually is the LDH of organically-modified mistake, like intercalation LDH such as sodium laurylsulfonate, methylene-succinic acids at present.But produce side reaction unavoidably in organically-modified process, have free monomer to residue in the polymkeric substance, and some polyfunctional compound has strong corrodibility and pungency and limited the application of matrix material.The more important thing is the raising of matrix material rigidity and flame retardant properties, is cost to sacrifice its toughness often.
Summary of the invention
The objective of the invention is: a kind of high-performance nano matrix material and preparation method thereof is provided, and it can not reduce under the inflexible condition, and the toughness of high density polyethylene(HDPE)/houghite nano composite material is increased substantially, to overcome the deficiency of prior art.
The present invention is achieved in that high performance composite, calculates by weight, and it comprises 100 parts of high density polyethylene(HDPE)s, 2～10 parts of hydrotalcites and 20 parts of ethylene acrylic acid co polymers.
The preparation method of high-performance nano matrix material earlier with ethylene acrylic acid co polymer and hydrotalcite thorough mixing in high-speed mixer, gets ethylene acrylic/hydrotalcite master batch through the twin screw extruder extruding pelletization; Again ethylene acrylic/hydrotalcite master batch and high density polyethylene(HDPE) are mixed, extrude through twin screw extruder and promptly get high-performance, high-density Vilaterm/houghite nano composite material.
Described hydrotalcite and ethylene acrylic/hydrotalcite master batch uses preceding at 80 ℃ of following dry 16h.Oven dry moisture before extruding, the danger that the instantaneous expansion of moisture evaporation gas causes in the time of can avoiding extruding has bubble in the material that can avoid again extruding and influences performance.
The screw speed of twin screw extruder is 300 rev/mins, and extrusion temperature is controlled at 170～205 ℃.
In order to verify technique effect of the present invention, test adopting the prepared high density polyethylene(HDPE)/houghite nano composite material of method of the present invention:
1, material selection:
Hydrotalcite: magnalium carbonate type, interlayer anion are CO
3 2-, the surface is unmodified, and median size is less than 2um, molecular formula [Mg
0.68Al
0.32(0H)
2] (CO
3)
0.160.7H
2O); The amount of getting is 2,4,6 parts respectively;
Ethylene acrylic acid co polymer (EAA): the trade mark 1430, acrylic acid content 9.7%, melt flow rate 5g/10min, 20 parts of the amounts of getting;
High density polyethylene(HDPE): trade mark 5200B, melt flow rate 0.35g/10min, density 0.968g/cm
3
2, the preparation of sample:
With 2,4,6 parts of hydrotalcites respectively with 20 parts of ethylene acrylic acid co polymers thorough mixing 5 minutes in high-speed mixer; Again through parallel dual-screw extruding machine; The screw speed of twin screw extruder is 300 rev/mins, and extrusion temperature is: 170 ℃, 175 ℃, 180 ℃, 185 ℃, 190 ℃, 195 ℃, 200 ℃, 205 ℃; Extruding pelletization gets ethylene acrylic/hydrotalcite master batch, and ethylene acrylic/hydrotalcite master batch is following dry 16 hours at 80 ℃; With the preparation 3 kinds of master batches respectively with 100 parts of high density polyethylene(HDPE) thorough mixing, get high density polyethylene(HDPE)/houghite nano composite material through the forcing machine extruding pelletization; Resulting matrix material is dried 16h down for 80 ℃, and injection moulding then (190 ~ 210 ℃) becomes test bars, and batten is placed 24h (23 ℃ of temperature, humidity 80%) in the biochemical case of fixed temperature and humidity.
The mechanical property that makes batten is verified and is tested:
The mechanical property of table 1 HDPE/LDH nano composite material
From table 1, can find out again, purer high density polyethylene(HDPE), the stiffness change of high density polyethylene(HDPE)/houghite nano composite material is little, and toughness but improves a lot.
Prepared high density polyethylene(HDPE)/houghite nano composite material is carried out microcosmic to be characterized.Fig. 1 is the SEM figure of matrix material, as can be seen from the figure, and in the matrix material of the present invention's preparation; There is fibrous material to be connected between hydrotalcite particle and the high density polyethylene(HDPE) matrix; And having formed regular reticulated structure, this is the hot candied phenomenon after the material impact, is typical ductile rupture; The hydrotalcite particle size is little of, big or small homogeneous, is dispersed in the matrix material; Matrix and interparticle interface thicken, and explain that the interface bonding strengthens greatly, and material breaks off from the middle part of dispersed particle and destroying during fracture, rather than destroying at the interface, has absorbed a large amount of striking energys.Explain that the adding of ethylene acrylic acid co polymer played compatibilization preferably, improved interfacial interaction effectively, suppress the reunion of hydrotalcite particle, promoted the effective dispersion of particle in matrix.
Fig. 2 is the TEM figure of matrix material.Wherein light areas is the high density polyethylene(HDPE) matrix, and gray area is the compatilizer ethylene acrylic acid co polymer that coats on the hydrotalcite, and black is the dispersive hydrotalcite.From amplify 15000 times figure, can find out, the matrix material of this method preparation, hydrotalcite can well be dispersed in the high density polyethylene(HDPE) matrix, and because the two interface of existence of ethylene acrylic is fuzzy, consistency is fine; From amplify 200000 times figure, can find out that partial L DH structure is in the state of peeling off with intercalation basically.Just because of this state of peeling off of hydrotalcite, given matrix material high impelling strength and intensity.
Owing to adopt above-mentioned technical scheme; Compared with prior art, it is compatilizer and toughner that the present invention adopts ethylene acrylic acid co polymer, has solved the contradiction between matrix material rigidity and the toughness; High density polyethylene(HDPE)/houghite nano composite material the toughness for preparing is greatly improved; Such mode can adopt without organically-modified hydrotalcite, thereby reduces production costs, and in melt blending, can not produce side reaction; Preparing method's technology of the present invention is simple, easy to operate, can be used for suitability for industrialized production, and high density polyethylene(HDPE)/houghite nano composite material using value and range of application are further developed.
Description of drawings
Fig. 1 is the SEM figure that section is impacted in test bars brittle failure after cooled with liquid nitrogen; Wherein (1) hydrotalcite umber is 2 test bars SEM photo, amplifies 10000 times; (2) the hydrotalcite umber is 6 matrix material SEM photo, amplifies 8000 times.
Fig. 2 is the TEM figure of test bars; Wherein (1) hydrotalcite umber is 2 matrix material TEM photo, amplifies 15000 and 200000 times; (2) the hydrotalcite umber is 6 matrix material TEM photo, amplifies 15000 and 200000 times.
Embodiment
Embodiments of the invention 1: the preparation of high-performance nano matrix material, calculate by weight, get 100 parts of high density polyethylene(HDPE)s, 2 parts of hydrotalcites and 20 parts of ethylene acrylic acid co polymers are subsequent use; Earlier with 2 parts of hydrotalcites in digital air dry oven 80 ℃ dry 16 hours down; Then with ethylene acrylic acid co polymer and hydrotalcite thorough mixing 5 minutes in high-speed mixer; Get ethylene acrylic/hydrotalcite master batch through the twin screw extruder extruding pelletization; Again with ethylene acrylic/hydrotalcite master batch dry 16h under 80 ℃; Dried ethylene acrylic/hydrotalcite master batch and high density polyethylene(HDPE) are mixed, extrude through twin screw extruder and promptly get high-performance, high-density Vilaterm/houghite nano composite material; The screw speed of twin screw extruder is 300 rev/mins in the extrusion, and extrusion temperature is controlled at 170～205 ℃.
Embodiments of the invention 2: the preparation of high-performance nano matrix material, calculate by weight, get 100 parts of high density polyethylene(HDPE)s, 4 parts of hydrotalcites and 20 parts of ethylene acrylic acid co polymers are subsequent use; Earlier with 4 parts of hydrotalcites in digital air dry oven 80 ℃ dry 16 hours down; Then with ethylene acrylic acid co polymer and hydrotalcite thorough mixing 5 minutes in high-speed mixer; Get ethylene acrylic/hydrotalcite master batch through the twin screw extruder extruding pelletization; Again with ethylene acrylic/hydrotalcite master batch dry 16h under 80 ℃; Dried ethylene acrylic/hydrotalcite master batch and high density polyethylene(HDPE) are mixed, extrude through twin screw extruder and promptly get high-performance, high-density Vilaterm/houghite nano composite material; The screw speed of twin screw extruder is 300 rev/mins in the extrusion, and extrusion temperature is controlled at 170～205 ℃.
Embodiments of the invention 3: the preparation of high-performance nano matrix material, calculate by weight, get 100 parts of high density polyethylene(HDPE)s, 6 parts of hydrotalcites and 20 parts of ethylene acrylic acid co polymers are subsequent use; First with 6 parts of hydrotalcites, 80 ℃ of following dry 16h in digital air dry oven; Then with ethylene acrylic acid co polymer and hydrotalcite thorough mixing 5 minutes in high-speed mixer; Get ethylene acrylic/hydrotalcite master batch through the twin screw extruder extruding pelletization; Again that ethylene acrylic/hydrotalcite master batch is following dry 16 hours at 80 ℃; Dried ethylene acrylic/hydrotalcite master batch and high density polyethylene(HDPE) are mixed, extrude through twin screw extruder and promptly get high-performance, high-density Vilaterm/houghite nano composite material; The screw speed of twin screw extruder is 300 rev/mins in the extrusion, and extrusion temperature is controlled at 170～205 ℃.
Embodiments of the invention 4: the preparation of high-performance nano matrix material, calculate by weight, get 100 parts of high density polyethylene(HDPE)s, 10 parts of hydrotalcites and 20 parts of ethylene acrylic acid co polymers are subsequent use; First with 6 parts of hydrotalcites, 80 ℃ of following dry 16h in digital air dry oven; Then with ethylene acrylic acid co polymer and hydrotalcite thorough mixing 5 minutes in high-speed mixer; Get ethylene acrylic/hydrotalcite master batch through the twin screw extruder extruding pelletization; Again that ethylene acrylic/hydrotalcite master batch is following dry 16 hours at 80 ℃; Dried ethylene acrylic/hydrotalcite master batch and high density polyethylene(HDPE) are mixed, extrude through twin screw extruder and promptly get high-performance, high-density Vilaterm/houghite nano composite material; The screw speed of twin screw extruder is 300 rev/mins in the extrusion, and extrusion temperature is controlled at 170～205 ℃.
In above embodiment, hydrotalcite adopts magnalium carbonate type hydrotalcite, and interlayer anion is CO
3 2-, the surface is unmodified, and median size is less than 2um, and molecular formula is [Mg
0.68Al
0.32(0H)
2] (CO
3)
0.160.7H
2O).
The trade mark of ethylene acrylic acid co polymer is 1430, its acrylic acid content 9.7%, melt flow rate 5g/10min.
The trade mark of high density polyethylene(HDPE) is 5200B, melt flow rate 0.35g/10min, and density is 0.968g/cm
3
Claims (4)
1. high-performance nano matrix material is characterized in that: calculate by weight, it comprises 100 parts of high density polyethylene(HDPE)s, 2～10 parts of hydrotalcites and 20 parts of ethylene acrylic acid co polymers.
2. the preparation method of a high-performance nano matrix material as claimed in claim 1; It is characterized in that:, get ethylene acrylic/hydrotalcite master batch through the twin screw extruder extruding pelletization earlier with ethylene acrylic acid co polymer and hydrotalcite thorough mixing in high-speed mixer; Again ethylene acrylic/hydrotalcite master batch and high density polyethylene(HDPE) are mixed, extrude through twin screw extruder and promptly get high-performance, high-density Vilaterm/houghite nano composite material.
3. the preparation method of high-performance nano matrix material according to claim 2 is characterized in that: described hydrotalcite and ethylene acrylic/hydrotalcite master batch uses preceding at 80 ℃ of following dry 16h.
4. the preparation method of high-performance nano matrix material according to claim 2 is characterized in that: the screw speed of twin screw extruder is 300 rev/mins, and extrusion temperature is controlled at 170～205 ℃.
Priority Applications (1)
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| CN2012101163562A CN102617922A (en) | 2012-04-20 | 2012-04-20 | High-performance nano-composite material and preparation method thereof |
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|---|---|---|---|
| CN2012101163562A CN102617922A (en) | 2012-04-20 | 2012-04-20 | High-performance nano-composite material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044746A (en) * | 2012-12-10 | 2013-04-17 | 中国京冶工程技术有限公司 | Externally-wrapped sheath modified material for retard-bonded pre-stressed steel strand and preparation method of externally-wrapped sheath modified material |
| CN110183760A (en) * | 2019-06-12 | 2019-08-30 | 福建富一锦科技有限公司 | A kind of fusible packaging film of PE and its preparation method and application |
| CN110204813A (en) * | 2019-06-12 | 2019-09-06 | 福建富一锦科技有限公司 | A kind of transparent superhigh intensity PE film and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704448A (en) * | 2004-05-25 | 2005-12-07 | 鲍文波 | Formulation of low-smoke halogen-free nontoxic environmentally-friendly cable materials and process for producing same |
| WO2007050991A1 (en) * | 2005-10-27 | 2007-05-03 | Polnox Corporation | Stabilized polyolefin compositions |
-
2012
- 2012-04-20 CN CN2012101163562A patent/CN102617922A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704448A (en) * | 2004-05-25 | 2005-12-07 | 鲍文波 | Formulation of low-smoke halogen-free nontoxic environmentally-friendly cable materials and process for producing same |
| WO2007050991A1 (en) * | 2005-10-27 | 2007-05-03 | Polnox Corporation | Stabilized polyolefin compositions |
Non-Patent Citations (1)
| Title |
|---|
| 张欢等: "EAA对PE-HD/水滑石复合材料的反应增容作用", 《中国塑料》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044746A (en) * | 2012-12-10 | 2013-04-17 | 中国京冶工程技术有限公司 | Externally-wrapped sheath modified material for retard-bonded pre-stressed steel strand and preparation method of externally-wrapped sheath modified material |
| CN110183760A (en) * | 2019-06-12 | 2019-08-30 | 福建富一锦科技有限公司 | A kind of fusible packaging film of PE and its preparation method and application |
| CN110204813A (en) * | 2019-06-12 | 2019-09-06 | 福建富一锦科技有限公司 | A kind of transparent superhigh intensity PE film and preparation method thereof |
| CN110183760B (en) * | 2019-06-12 | 2022-04-05 | 福建富一锦科技有限公司 | PE fusible packaging film and preparation method and application thereof |
| CN110204813B (en) * | 2019-06-12 | 2022-04-05 | 福建富一锦科技有限公司 | Transparent ultrahigh-strength PE film and preparation method thereof |
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Application publication date: 20120801 |