CN105199377A - High-performance low-fiber-exposure reinforced PA66 composite and preparation method thereof - Google Patents

High-performance low-fiber-exposure reinforced PA66 composite and preparation method thereof Download PDF

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Publication number
CN105199377A
CN105199377A CN201510611744.1A CN201510611744A CN105199377A CN 105199377 A CN105199377 A CN 105199377A CN 201510611744 A CN201510611744 A CN 201510611744A CN 105199377 A CN105199377 A CN 105199377A
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CN
China
Prior art keywords
composition
reinforced plastic
glass
performance
low floating
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.)
Pending
Application number
CN201510611744.1A
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Chinese (zh)
Inventor
陈勇文
张现军
梁惠强
孙东海
陶四平
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Tianjin Kingfa Advanced Materials Co Ltd
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Tianjin Kingfa Advanced Materials Co Ltd
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Priority to CN201510611744.1A priority Critical patent/CN105199377A/en
Publication of CN105199377A publication Critical patent/CN105199377A/en
Pending legal-status Critical Current

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    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/004—Additives being defined by their length
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

The invention provides a high-performance low-fiber-exposure reinforced PA66 composite and a preparation method thereof. The composite is prepared from, by weight, 50-75% of PA66, 1-10% of flexibilizer, 5-30% of short-cut glass fibers, 0.01-2% of caprolactam, 5-50% of glass fiber exposure improving agents and 1-30% of other auxiliary agents. Novel high-performance low-fiber-exposure reinforced PA66 is prepared and obtained through an extrusion prilling method, and the product is low in fiber exposure and good in mechanical property.

Description

The low floating fine reinforced plastic PA66 composition and method of making the same of a kind of high-performance
Technical field
The present invention relates to and technical field of polymer materials, especially relate to the low floating fine reinforced plastic PA66 composition and method of making the same of a kind of high-performance.
Background technology
Polyhexamethylene adipamide (PA66) is a kind of engineering plastics of hemicrystalline, by modified, possess good mechanical property, electrical property, thermotolerance and chemical resistant properties etc. and be widely used in the fields such as railway equipment, power tool, electric and automobile.Such as, but PA66 still Shortcomings in some aspects, strengthening product, to get product outward appearance floating obviously fine, and the shortcomings such as toughness is poor limit its range of application to a certain extent.
For a long time, under the prerequisite of the mechanics and processing characteristics that do not affect reinforced plastic PA66 material, it is industry difficulties that the glass improving reinforced plastic PA66 material leaks outside always, researchist's great majority adopt the composition lubricant of fatty acid ester and ethylene bis stearamide to improve the floating fibre of product, but these lower molecular weight auxiliary agents are added in the risk that there is precipitation to a certain extent.
Summary of the invention
In order to overcome existing technological deficiency, primary and foremost purpose of the present invention is to provide a kind of high-performance low floating fine reinforced plastic PA66 composition and method of making the same, said composition to leak outside activator PA6 by adding a certain proportion of glass, and improve the consistency of blend and mobility the adding of component hexanolactam, the toughness of material that can effectively improve, improve that glass leaks outside, substantially do not affect other performances of material simultaneously.For achieving the above object, technical scheme of the present invention is achieved in that
The low floating fine reinforced plastic PA66 composition of a kind of high-performance, by weight, comprises following component,
PA66:50-75%, toughner: 1-10%, chopped glass fiber: 5-30%, hexanolactam: 0.01%-2%, glass leaks outside activator: 5-50%, other auxiliary agents 1-30%;
The wherein said glass activator that leaks outside is PA6.
Further, the low floating fine reinforced plastic PA66 composition of described high-performance, by weight, comprises following component, PA66:55-70%, toughner: 1-5%, chopped glass fiber: 10-30%, hexanolactam: 0.01%-1%,, glass leaks outside activator: 5-40%, other auxiliary agents 1-15%; The wherein said glass activator that leaks outside is PA6.
Further, other auxiliary agents described are any one or the two or more composition in silane coupling agent, oxidation inhibitor and lubricant.
Further, the limiting viscosity of described PA66 resin is 2.0-3.6dl/g, and the limiting viscosity of described PA6 resin is 2.0-3.6dl/g.
Further, the limiting viscosity of described PA66 resin is 2.0-2.8dl/g, and the limiting viscosity of described PA6 resin is 2.0-2.8dl/g.
Further, described toughner is any one or two kinds of in POE-g-MAH, EPDM-g-MAH.
Further, described shortwave fiber is alkali-free glass fiber, and its diameter is 5-24um, and length is 3-9mm.。
Further, described hexanolactam is density is 1.01g/cm3, and fusing point is at 68-71 DEG C, and boiling point is 270 DEG C.
Relative to prior art, the PA66 composition of the low floating fibre of high-performance of the present invention has following advantage:
The PA66 composition of the low floating fibre of high-performance prepared by the present invention not only has low floating fibre, better toughness, and has excellent mechanical property concurrently, can be widely used in the fields such as railway equipment, power tool, electric and automobile.
Another object of the present invention is to the preparation method proposing a kind of described low floating fine reinforced plastic PA66 composition of high-performance, to provide a kind of high performance PA66 composition.
For achieving the above object, technical scheme of the present invention is achieved in that
A preparation method for the described low floating fine reinforced plastic PA66 composition of high-performance, comprises the steps:
Step one: take each component by above-mentioned weight percent, first dries 3-6h by PA66, PA6 at 100-140 DEG C, and then all the other each components and the mixed with resin after drying evenly are formed Preblend;
Step 2: the Preblend of step one being made is at the temperature of 230-280 DEG C, and glass is surveyed and fed, extruding pelletization in an extruder, in conjunction with in the scope that the reservation length controlling glass with suitable screw combinations is certain, forms material grain.
Relative to prior art, the preparation method of the low floating fine reinforced plastic PA66 composition of high-performance of the present invention is simply efficient, considerably reduces the surface floating fiber of material.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
The present invention is described in detail below in conjunction with embodiment.
Embodiments of the invention adopt following raw material:
The EPR27 that PA66 provides for tafelberg Shen Ma group;
The YH400 that PA6 provides for Yueyang Ba Ling petrochemical industry;
Chopped glass fiber is the ECS10-3.0-T435N of Mount Taishan glass company limited, and diameter is 10um;
Hexanolactam provides for Yueyang Ba Ling petrochemical industry;
Other auxiliary agents are some, are the usual auxiliaries of producing resene composition.
Material performance test method in the embodiment of the present invention and comparative example is as follows:
(1) tensile strength: test by ISO527; Rate of extension is 10mm/min;
(2) Izod notched impact strength: by ISO180 test, A type breach;
(3) flexural strength: by ISO178 test, speed is 2mm/min;
(4) product outward appearance: 100mm*100mm*3mm side's plate, visual.
Embodiment 1-6 and comparative example 1-4
Each component is taken according to the weight percent in table 1-2, first PA66, PA6 are dried 3-6h at 100-140 DEG C, dried PA66 resin, PA6 resin, fire retardant and other auxiliary agents are mixed 1-2 minute in high-speed mixer and obtains Preblend, Preblend adds in twin screw extruder that (screw diameter is 35mm, length-to-diameter ratio L/D=40) melt extrude, glass fibre side is fed.Wherein each barrel temperature (by charging opening to head) of twin screw extruder respectively: 160 DEG C, 280 DEG C, 270 DEG C, 260 DEG C, 240 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 250 DEG C, 270 DEG C, screw speed is 300 revs/min, feeding capacity 50kg/h.By the above-mentioned product obtained injection moulding standard batten after dry 3-4 hour inside the baking oven of 120 DEG C, injection temperature is 280 DEG C.The standard batten of injection formed, at 25 DEG C, to place after 4 hours test performance again under the relative humidity of 50%.
The component of table 1 embodiment 1-6 and table with test results 2
The component of table 2 comparative example 1-4 and test result
As can be seen from experimental example and comparative example Data Comparison, the floating fibre of material significantly can be improved by adjusting suitable resin ratio, its mechanism is adding by PA6 and hexanolactam component, the crystallization rate of PA66 can be effectively reduced, improve the mobility of system, reduce the degree of crystallinity of system simultaneously, thus effectively solve the floating fine problem of material surface, and the consistency that can effectively improve between component, improve the toughness of material, and keep good mechanical property.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. the low floating fine reinforced plastic PA66 composition of high-performance, is characterized in that: by weight, comprises following component,
PA66:50-75%, toughner: 1-10%, chopped glass fiber: 5-30%, hexanolactam: 0.01%-2%, glass leaks outside activator: 5-50%, other auxiliary agents 1-30%;
The wherein said glass activator that leaks outside is PA6.
2. according to claimthe low floating fine reinforced plastic PA66 composition of high-performance described in 1, is characterized in that: by weight, comprises following component, PA66:55-70%, toughner: 1-5%, chopped glass fiber: 10-30%, hexanolactam: 0.01%-1%,, glass leaks outside activator: 5-40%, other auxiliary agents 1-15%; The wherein said glass activator that leaks outside is PA6.
3. according to claimthe low floating fine reinforced plastic PA66 composition of high-performance described in 1, is characterized in that: other auxiliary agents described are any one or two or more composition in silane coupling agent, oxidation inhibitor and lubricant.
4. according to claimthe low floating fine reinforced plastic PA66 composition of high-performance described in 1, it is characterized in that: the limiting viscosity of described PA66 resin is 2.0-3.6dl/g, the limiting viscosity of described PA6 resin is 2.0-3.6dl/g.
5. according to claimthe low floating fine reinforced plastic PA66 composition of high-performance described in 3, it is characterized in that: the limiting viscosity of described PA66 resin is 2.0-2.8dl/g, the limiting viscosity of described PA6 resin is 2.0-2.8dl/g.
6. according to claimthe low floating fine reinforced plastic PA66 composition of high-performance described in 1, is characterized in that: described toughner is any one or two kinds of in POE-g-MAH, EPDM-g-MAH.
7. according to claimthe low floating fine reinforced plastic PA66 composition of high-performance described in 1, it is characterized in that: described shortwave fiber is alkali-free glass fiber, its diameter is 5-24um, and length is 3-9mm.
8. according to claimthe low floating fine reinforced plastic PA66 composition of high-performance described in 1, is characterized in that: described hexanolactam is density is 1.01g/cm 3, fusing point is at 68-71 DEG C, and boiling point is 270 DEG C.
9. according to claimthe preparation method of the low floating fine reinforced plastic PA66 composition of the high-performance described in any one of 1-8, is characterized in that:
Step one: take each component by above-mentioned weight percent, first dries 3-6h by PA66, PA6 at 100-140 DEG C, and then all the other each components and the mixed with resin after drying evenly are formed Preblend;
Step 2: the Preblend of step one being made is at the temperature of 230-280 DEG C, and glass is surveyed and fed, extruding pelletization in an extruder, in conjunction with in the scope that the reservation length controlling glass with suitable screw combinations is certain, forms material grain.
CN201510611744.1A 2015-09-21 2015-09-21 High-performance low-fiber-exposure reinforced PA66 composite and preparation method thereof Pending CN105199377A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107698971A (en) * 2017-11-11 2018-02-16 青岛颐世保塑料有限公司 A kind of glass fiber reinforced PA66 composite and preparation method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101781456A (en) * 2010-03-17 2010-07-21 东莞劲胜精密组件股份有限公司 Reinforced nylon material without floating fiber and preparation method thereof
CN103319888A (en) * 2013-06-20 2013-09-25 吴江市董鑫塑料包装厂 High-strength high-toughness polyamide
CN103665843A (en) * 2013-11-26 2014-03-26 沃太能源南通有限公司 Preparation method for impermeable nylon material for compound fuel tank
EP2719729A1 (en) * 2012-10-10 2014-04-16 LANXESS Deutschland GmbH Moulding material

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN101781456A (en) * 2010-03-17 2010-07-21 东莞劲胜精密组件股份有限公司 Reinforced nylon material without floating fiber and preparation method thereof
EP2719729A1 (en) * 2012-10-10 2014-04-16 LANXESS Deutschland GmbH Moulding material
CN103319888A (en) * 2013-06-20 2013-09-25 吴江市董鑫塑料包装厂 High-strength high-toughness polyamide
CN103665843A (en) * 2013-11-26 2014-03-26 沃太能源南通有限公司 Preparation method for impermeable nylon material for compound fuel tank

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107698971A (en) * 2017-11-11 2018-02-16 青岛颐世保塑料有限公司 A kind of glass fiber reinforced PA66 composite and preparation method

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