CN103509337A - Modified nylon material - Google Patents
Modified nylon material Download PDFInfo
- Publication number
- CN103509337A CN103509337A CN201310412360.8A CN201310412360A CN103509337A CN 103509337 A CN103509337 A CN 103509337A CN 201310412360 A CN201310412360 A CN 201310412360A CN 103509337 A CN103509337 A CN 103509337A
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- Prior art keywords
- nylon
- area
- modified nylon
- stability
- low
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention aims to provide a modified nylon material for improving the stability of a polynylon material and a preparation method thereof. Owing to the own advantages such as higher tensile strength and impact strength, extremely-excellent wear resistance and corrosion resistance and self-lubrication and the like, nylon PA66, as a metal substitute, is widely applied in the machinery, automobile and electronics industries. However, due to the structural features, nylon generally has the shortcomings such as high water absorption, low dry-state and low-temperature impact strength, poor stability after water absorption and the like, resulting in a limited range of application. The moderate/low-viscosity PA66 has a relatively-low molecular weight, a high melt flow rate and a small melt dry degree. In the case of direct application to an extruded product (such as a plate or pipe), the problem of melt falling or running occurs because the melt viscosity is small. As a result, the majority of nylon is suitable for injection molding instead of extrusion molding, and therefore, the modification of size stability of nylon is necessary. According to the invention, the size stability of a nylon material can be improved greatly, and other mechanical properties are enhanced and improved as well.
Description
Technical field
It is specifically a kind of to improve the original deficiency of nylon the invention belongs to nylon PA66 material production technical fields, make it have modified nylon materials of dimensional stability and preparation method thereof.
Background technology
Nylon（Nylon）, English name：Polyamide66, abbreviation title PA66.Its chemical formula is：[-NH（CH2）6-NHCO (CH2) 4CO] n.Structural formula is as follows：
Nylon PA66 is because itself having high tensile strength and impact strength, extremely superior wearability and corrosion resistance, and the advantages of self-lubricating, the industries such as machinery, automobile, electronics are widely used in as metal replacements.But the characteristics of due to structure, nylon generally existing water imbibition is big.Dry state and low temperature impact strength are low, the shortcomings of size is unstable after water suction, are restricted its application.And middle low viscosity PA66 molecule disk is relatively low, melt flow rate (MFR) is big, and the withered degree of melt is small.If being directly used in extruded product, such as plate pipe, because melt viscosity is small and produces melt and falls or be cast phenomenon.Because this phenomenon, most of nylon is suitable for injection moulding, extrusion processing should not be carried out.
PA66 is mechanical strength highest, most widely used kind in PA series, because its crystallinity is high, therefore its rigidity, the higher of heat resistance be translucent or opaque creamy white crystals shape polymer, with plasticity.But water imbibition is larger, thus dimensional stability is poor.
The content of the invention
It is an object of the invention to provide a kind of modified nylon materials for improving poly- nylon material stability and preparation method thereof.
Anti-flaming polypropylene material is made up of following weight ratio raw material：
Nylon PA66 raw materials：70~80
Alkali-free glass fibre：20~30%
Antioxidant：1.3 ~1.7
Colouring agent：0.8~1.2
UV absorbers：8.5~9.5
Light stabilizer：8.5~9.5
Dispersed lubricant：9.5~10.5
Glass compatilizer：3.5~4.5
Dispersant of the present invention is TAS-2A；Diffusing oil is technical white oil 10#；Antioxidant is the copolymer of ethene-octene；UV absorbers are 2-hydroxy-4-n-octoxybenzophenone.
The preparation method of the modified nylon materials, comprises the following steps：First by above-mentioned various raw materials in super mixer it is dry-mixed 10-12 minutes, then be placed in double screw extruder through melting extrusion, cooling, pelletizing, packed products；Wherein, the area's temperature of double screw extruder one is 160-180 DEG C, and 2nd area are 230-250 DEG C, and 3rd area are 255-275 DEG C, and 4th area are 250-270 DEG C；5th area are 230-250 DEG C, and the residence time is 1-2 minutes, and pressure is 10-15Mpa.
The mechanical property of gained modified nylon materials of the invention can reach the standard that uses, and the dimensional stability of nylon PA66 materials can be greatly improved, and nylon PA66 material is improved security performance when in use.
Embodiment
Below by embodiment, the present invention is described further, and following examples are only that the present invention will be described rather than it is limited.
Embodiment 1：
（1）To weigh each raw material respectively as follows for score by weight：
Nylon PA66 raw materials：75
Alkali-free glass fibre：25
Antioxidant（The copolymer of ethene-octene）：1.5
Colouring agent：1.0
UV absorbers（2-hydroxy-4-n-octoxybenzophenone）：9.0
Light stabilizer：9.0
Dispersed lubricant（TAS-2A）：1.0
Glass compatilizer：4
（2）First by above-mentioned various raw materials in super mixer it is dry-mixed 10-12 minutes, then be placed in double screw extruder through melting extrusion, cooling, pelletizing, packed products；Wherein, the area's temperature of double screw extruder one is 160-180 DEG C, and 2nd area are 230-250 DEG C, and 3rd area are 255-275 DEG C, and 4th area are 250-270 DEG C；5th area are 230-250 DEG C, and the residence time is 1-2 minutes, and pressure is 10-15Mpa.
Experimental result：
| Characterisitic parameter | Testing standard | Performance indications | PA66 raw materials | PA66+ glasses |
| 1 tensile strength MPa | ASTM/D 638 | / | 82.7 | 110 |
| 2 elongation at break % | ASTM/D 638 | / | 25 | 15.4 |
| 3 bending strength MPa | ASTM/D 790 | / | 88.5 | 170.5 |
| 4 bending modulus MPa | ASTM/D 790 | / | 5400 | 8500 |
| 5 IZOD notch impact strengths J/m | ASTM/D 256 | / | 115 | 80 |
It is above-mentioned test result indicate that, the stability of modified nylon materials obtains extremely significantly improving, and remaining mechanical property also gets a promotion and improved.
Embodiment 2：
（1）To weigh each raw material respectively as follows for score by weight：
Nylon PA66 raw materials：70
Alkali-free glass fibre：20
Antioxidant（The copolymer of ethene-octene）：1.3
Colouring agent：0.8
UV absorbers（2-hydroxy-4-n-octoxybenzophenone）：8.5
Light stabilizer：8.5
Dispersed lubricant（TAS-2A）：9.5
Glass compatilizer：3.5
（2）First by above-mentioned various raw materials in super mixer it is dry-mixed 10-12 minutes, then be placed in double screw extruder through melting extrusion, cooling, pelletizing, packed products；Wherein, the area's temperature of double screw extruder one is 160-180 DEG C, and 2nd area are 230-250 DEG C, and 3rd area are 255-275 DEG C, and 4th area are 250-270 DEG C；5th area are 230-250 DEG C, and the residence time is 1-2 minutes, and pressure is 10-15Mpa.
Experimental result：
| Characterisitic parameter | Testing standard | Performance indications | PA66 raw materials | PA66+ glasses |
| 1 tensile strength MPa | ASTM/D 638 | / | 82.7 | 104.3 |
| 2 elongation at break % | ASTM/D 638 | / | 25 | 17.0 |
| 3 bending strength MPa | ASTM/D 790 | / | 88.5 | 163.7 |
| 4 bending modulus MPa | ASTM/D 790 | / | 5400 | 8420 |
| 5 IZOD notch impact strengths J/m | ASTM/D 256 | / | 115 | 74 |
Above-mentioned test result shows that nylon PA66 stability is significantly improved and improved.
Embodiment 3：
（1）To weigh each raw material respectively as follows for score by weight：
Nylon PA66 raw materials： 80
Alkali-free glass fibre： 30
Antioxidant（The copolymer of ethene-octene）：1.7
Colouring agent： 1.2
UV absorbers（2-hydroxy-4-n-octoxybenzophenone）：9.5
Light stabilizer：9.5
Dispersed lubricant（TAS-2A）： 10.5
Glass compatilizer： 4.5
（2）First by above-mentioned various raw materials in super mixer it is dry-mixed 10-12 minutes, then be placed in double screw extruder through melting extrusion, cooling, pelletizing, packed products；Wherein, the area's temperature of double screw extruder one is 160-180 DEG C, and 2nd area are 230-250 DEG C, and 3rd area are 255-275 DEG C, and 4th area are 250-270 DEG C；5th area are 230-250 DEG C, and the residence time is 1-2 minutes, and pressure is 10-15Mpa.
Experimental result：
| Characterisitic parameter | Testing standard | Performance indications | PA66 raw materials | PA66+ glasses |
| 1 tensile strength MPa | ASTM/D 638 | / | 82.7 | 118 |
| 2 elongation at break % | ASTM/D 638 | / | 25 | 13.4 |
| 3 bending strength MPa | ASTM/D 790 | / | 88.5 | 171.2 |
| 4 bending modulus MPa | ASTM/D 790 | / | 5400 | 8478 |
| 5 IZOD notch impact strengths J/m | ASTM/D 256 | / | 115 | 78 |
It is above-mentioned test result indicate that, nylon PA66 stability obtains more significantly improving
Above-described embodiment is the present invention for example, being not intended to limit the present invention.Shown by above-mentioned experiment, wherein embodiment 1 is optimum weight percent, the performance such as tensile strength, elongation at break, the bending strength of the modified nylon materials manufactured by this method is obviously improved.
Modified nylon materials of the present invention, can overcome the unborn water imbibition of nylon big, dry state and low temperature impact strength are low, the shortcomings of size is unstable after water suction, and application and further genralrlization for nylon PA66 materials, tool are of great significance.
Claims (5)
1. modified nylon materials, it is characterised in that：It is made up of following weight ratio raw material,
Nylon PA66 raw materials：70~80
Alkali-free glass fibre：20~30%
Antioxidant：1.3 ~1.7
Colouring agent：0.8~1.2
UV absorbers：8.5~9.5
Light stabilizer：8.5~9.5
Dispersed lubricant：9.5~10.5
Glass compatilizer：3.5~4.5.
2. modified nylon materials according to claim 1, it is characterised in that：Optimum weight percent raw material is constituted：
Nylon PA66 raw materials：75
Alkali-free glass fibre：25
Antioxidant：1.5
Colouring agent：1.0
UV absorbers：9.0
Light stabilizer：9.0
Dispersed lubricant：1.0
Glass compatilizer：4.
3. modified nylon materials according to claim 1, it is characterised in that：Dispersant of the present invention is TAS-2A；Diffusing oil is technical white oil 10#；Antioxidant is the copolymer of ethene-octene；UV absorbers are 2-hydroxy-4-n-octoxybenzophenone.
4. modified nylon materials according to claim 1, it is characterised in that：Preparation method is, first by above-mentioned various raw materials in super mixer it is dry-mixed 10-12 minutes, then be placed in double screw extruder through melting extrusion, cooling, pelletizing, packed products；Wherein, the area's temperature of double screw extruder one is 160-180 DEG C, and 2nd area are 230-250 DEG C, and 3rd area are 255-275 DEG C, and 4th area are 250-270 DEG C；5th area are 230-250 DEG C, and the residence time is 1-2 minutes, and pressure is 10-15Mpa.
5. modified nylon materials according to claim 1, it is characterised in that：Its stability of modified nylon materials of the present invention obtains extremely significantly improving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412360.8A CN103509337A (en) | 2013-09-11 | 2013-09-11 | Modified nylon material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412360.8A CN103509337A (en) | 2013-09-11 | 2013-09-11 | Modified nylon material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103509337A true CN103509337A (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310412360.8A Pending CN103509337A (en) | 2013-09-11 | 2013-09-11 | Modified nylon material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103509337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114163668A (en) * | 2021-11-04 | 2022-03-11 | 呼和浩特众环工贸股份有限公司 | Material of water collecting box of light machine tool and forming method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854190A (en) * | 2005-04-29 | 2006-11-01 | 上海日之升新技术发展有限公司 | Thermoplastic non-halogen and fire-retardant reinforced Nylon 6 and Nylon 66 alloy |
| CN101205362A (en) * | 2006-12-20 | 2008-06-25 | 上海日之升新技术发展有限公司 | Warpage-resistant composite reinforced nylon 66 composition |
-
2013
- 2013-09-11 CN CN201310412360.8A patent/CN103509337A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854190A (en) * | 2005-04-29 | 2006-11-01 | 上海日之升新技术发展有限公司 | Thermoplastic non-halogen and fire-retardant reinforced Nylon 6 and Nylon 66 alloy |
| CN101205362A (en) * | 2006-12-20 | 2008-06-25 | 上海日之升新技术发展有限公司 | Warpage-resistant composite reinforced nylon 66 composition |
Non-Patent Citations (1)
| Title |
|---|
| 侯元春等: "《新型TAS-2A分散润滑剂在塑料改性中的应用》", 《工程塑料应用》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114163668A (en) * | 2021-11-04 | 2022-03-11 | 呼和浩特众环工贸股份有限公司 | Material of water collecting box of light machine tool and forming method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |
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| WD01 | Invention patent application deemed withdrawn after publication |