CN104031384A - High-gloss low-warpage nylon 66 material and preparation method thereof - Google Patents

High-gloss low-warpage nylon 66 material and preparation method thereof Download PDF

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Publication number
CN104031384A
CN104031384A CN201410256335.XA CN201410256335A CN104031384A CN 104031384 A CN104031384 A CN 104031384A CN 201410256335 A CN201410256335 A CN 201410256335A CN 104031384 A CN104031384 A CN 104031384A
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nylon
materials
warpage
gloss low
coupling agent
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刘志
马璐
宋航
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Wenzhou Ke Lisu Industry Co Ltd
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Wenzhou Ke Lisu Industry Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/06Polyamides derived from polyamines and polycarboxylic acids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58Component parts, details or accessories; Auxiliary operations
    • B29B7/72Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/74Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461Combinations of dissimilar mixers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/02Making granules by dividing preformed material
    • B29B9/06Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/12Making granules characterised by structure or composition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022Extrusion 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/12Making granules characterised by structure or composition
    • B29B2009/125Micropellets, microgranules, microparticles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/9258Velocity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/9258Velocity
    • B29C2948/9259Angular velocity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92609Dimensions
    • B29C2948/92657Volume or quantity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895Barrel or housing
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/003Additives being defined by their diameter
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/24Crystallisation aids

Abstract

The invention relates to a high-gloss low-warpage nylon 66 material and a preparation method thereof. The nylon 66 material comprises 30%-90% of nylon 66 resin, 1%-50% of nano barium sulfate, 1%-5% of dispersing agent, 0.1%-1% of antioxidant, 0.1%-1% of nucleating agent, and 0.1%-1% of coupling agent. Due to the added nano barium sulfate, the surface glossiness and flatness of the prepared nylon 66 can be greatly improved. The preparation method comprises the following steps: putting the fillers of certain parts by weight into a high-speed mixing machine, mixing for 2-5 minutes, discharging, then putting the mixed material into an extruder from a main feed port of the twin-screw extruder, and finally, carrying out water cooling, air drying, extruding and prilling, wherein the temperature in the whole prilling process is controlled at 220-280DEG C, and the rotating speed of the screw is controlled at 300-400RPM.

Description

A kind of high gloss low-warpage nylon dragon 66 materials and preparation method thereof
Technical field
The present invention relates to nylon material field, be specifically related to a kind of high gloss low-warpage nylon dragon 66 materials and preparation method thereof.
Background technology
Nylon 66 fatigue strength and rigidity are higher, thermotolerance is better, frictional coefficient is low, wear resistance is good, it has been widely used in the fields such as automobile, mechanical industry, electronic apparatus, precision instrument, in order further to improve the effect of nylon 66, in Nylon 66, make it to form modified nylon 66 material by adding the method processing such as filling, blend, increase in recent years.
The modified plastics product of producing by modified nylon 66 material its in flame retardant resistance, shock resistance and toughness aspect are all greatly improved, but, human consumer not only has higher requirement to the use properties of product itself, appearance requirement to product is more and more higher, the quality of its outward appearance depends primarily on product surface glossiness and planeness, and fill talcum powder by meeting at the Nylon 66 for making product in order to improve the Guan Zedu of product and planeness in prior art, calcium carbonate, the fillers such as whisker, but filler of the prior art can not well reach people's requirement, be difficult to have concurrently Guan Zedu and the planeness of product simultaneously.
Summary of the invention
The technical problem to be solved in the present invention has been to provide a kind of high gloss low-warpage nylon dragon 66 materials and preparation method thereof, and it has solved the nylon 66 material of making in existing general filler absorption Nylon 66 and do not reach the weak point of high gloss, low warpage.
A kind of high gloss low-warpage nylon dragon 66 materials, made by the raw material of following weight percent:
In order to obtain better invention effect, the present invention is done further preferably:
Preferably, the relative viscosity of described Nylon 66 is 2.3~2.8, its relative viscosity is to test gained according to standard ISO 307, can ensure that by the relative viscosity of Nylon 66 being controlled to 2.3~2.8 the auxiliary agent adding is better disperseed, and the mobility of processing can be better, is conducive to granulation more smooth and easy.
Preferably, in described Nylon 66, the weight percent of moisture need be controlled at below 0.15%, thereby can be good at avoiding the filler in Nylon 66 to produce the phenomenon of uniting, and makes filler more dispersed in resin.
Preferably, described nano barium sulfate is nano level barium sulfate, its particle diameter scope is at 0.5 μ m~10 μ m, by the granular size of barium sulfate is controlled within the scope of this, can increase its surface gloss and material mechanical performance especially toughness can better be ensured, simultaneously can avoid producing reuniting effect, make that blanking is more easy, dispersion is also more even.
Preferably, described dispersion agent is silicone powder, by using silicone powder as the processing fluidity of making dispersion agent in nylon 66 material and can be good at improving material, reduces frictional coefficient, improves the dispersion effect of filler.
Preferably, described oxidation inhibitor is be obstructed ketone and phosphorous acid ester compound of one, thereby can improve the composition that is made up of the each material antioxidant property in the course of processing, and particle after processing ageing resistance in use is also greatly enhanced.
Preferably, described nucleator is the careful powdered mixture of organic composition and inorganic components, by add this kind of nucleator nylon 66 crystal grain that further refinement is made in Nylon 66, plays the effect of further its surface gloss of raising.
Preferably, described coupling agent can be aluminate coupling agent, titanate coupling agent or silane coupling agent, by regulating coupling agent can obtain good dispersiveness in Nylon 66, wettability, with coupling rate, and can prevent that infill system viscosity from increasing the mobility that keeps good, can realize high filling.
The invention still further relates to the preparation method of a kind of high gloss low-warpage nylon dragon 66 materials described above, in its process of preparing, first Nylon 66, nano barium sulfate, dispersion agent, oxidation inhibitor, nucleator, coupling agent are put into high mixing machine mixing discharging after 2-5 minute by certain part by weight, then the material mixing is inserted in forcing machine by the main opening for feed of twin screw extruder, finally by water-cooled, air-dry, extruding pelletization, temperature in its whole granulation process should be controlled at 220-280 DEG C, and screw speed is controlled at 300~400RPM.
Compared with the nylon 66 made from other fillers, beneficial effect of the present invention is:
1, by the glossiness on nylon 66 surfaces that add nano barium sulfate to make to make and the nylon 66 that planeness is made significantly better than other fillers.
2, the antioxidant property in the course of processing by the material that adds Hinered phenols antioxidant to improve to mix, and nylon 66 ageing resistance in the process using after making to make is also greatly enhanced.
3, by adding silicone powder as dispersion agent, can greatly improve the processing fluidity of the each filler in mixture, reduce frictional coefficient, improve the dispersion effect of filler, thereby ensure to make the stable of nylon 66.
4, by adding the nucleator being formed by the careful powdered mixture of organic composition and inorganic components, greatly shortening injection molding cycle, improve dimensional stability, significantly reduce goods generation warpage, improve demolding performace, and refinement nylon 66 crystal grain, have further improved surface gloss.
Embodiment
Be explained in detail below in conjunction with multiple embodiment of the present invention, thereby so that advantages and features of the invention can be easier to be those skilled in the art will recognize that, protection scope of the present invention made to more defining of clear and definite.
Embodiment 1
Adopt the raw material of following weight proportion:
Nylon 66 (relative viscosity is 2.7, weight percent water ratio 0.15%) 67.2%;
(particle diameter is 0.7 μ m) 30% to nano barium sulfate;
Silicone powder 1.0%;
Oxidation inhibitor (Hinered phenols and phosphorous acid ester 1: 1 composite) 0.3%;
Nucleator (the careful powdered mixture of organic composition and inorganic components) 0.2%;
Aluminate coupling agent 0.3%;
Raw material good above-mentioned weight proportion is joined respectively to fully mixing discharging after 4 minutes in high mixing machine, then the material mixing is inserted in forcing machine by the main opening for feed of twin screw extruder, finally by water-cooled, air-dry, extruding pelletization, thereby make nylon 66 material, its temperature in whole granulation process should be controlled at 260 DEG C, and screw speed is controlled at 360RPM.
Embodiment 2
Adopt the raw material of following weight proportion:
Nylon 66 (relative viscosity is 2.7, weight percent water ratio 0.15%) 67.2%;
(particle diameter is 0.5 μ m) 30% to meticulous talcum powder;
Silicone powder 1.0%;
Oxidation inhibitor (Hinered phenols and phosphorous acid ester 1: 1 composite) 0.3%;
Nucleator (the careful powdered mixture of organic composition and inorganic components) 0.2%;
Aluminate coupling agent 0.3%;
Raw material good above-mentioned weight proportion is joined respectively to fully mixing discharging after 4 minutes in high mixing machine, then the material mixing is inserted in forcing machine by the main opening for feed of twin screw extruder, finally by water-cooled, air-dry, extruding pelletization, thereby make nylon 66 material, its temperature in whole granulation process should be controlled at 260 DEG C, and screw speed is controlled at 360RPM.
Embodiment 3
Adopt the raw material of following weight proportion:
Nylon 66 (relative viscosity is 2.7, weight percent water ratio 0.15%) 67.2%;
(particle diameter is 5 μ m) 30% to nano-calcium carbonate;
Silicone powder 1.0%;
Oxidation inhibitor (Hinered phenols and phosphorous acid ester 1: 1 composite) 0.3%;
Nucleator (the careful powdered mixture of organic composition and inorganic components) 0.2%;
Aluminate coupling agent 0.3%;
Raw material good above-mentioned weight proportion is joined respectively to fully mixing discharging after 4 minutes in high mixing machine, then the material mixing is inserted in forcing machine by the main opening for feed of twin screw extruder, finally by water-cooled, air-dry, extruding pelletization, thereby make nylon 66 material, its temperature in whole granulation process should be controlled at 260 DEG C, and screw speed is controlled at 360RPM.
Embodiment 4
Adopt the raw material of following weight proportion:
Nylon 66 (relative viscosity is 2.7, weight percent water ratio 0.15%) 67.2%;
(particle diameter is 3.5 μ m) 30% to whisker;
Silicone powder 1.0%;
Oxidation inhibitor (Hinered phenols and phosphorous acid ester 1: 1 composite) 0.3%;
Nucleator (the careful powdered mixture of organic composition and inorganic components) 0.2%;
Aluminate coupling agent 0.3%;
Raw material good above-mentioned weight proportion is joined respectively to fully mixing discharging after 4 minutes in high mixing machine, then the material mixing is inserted in forcing machine by the main opening for feed of twin screw extruder, finally by water-cooled, air-dry, granulation, thereby make nylon 66 material, its temperature in whole granulation process should be controlled at 260 DEG C, and screw speed is controlled at 360RPM.
Prepared each nylon 66 material in embodiment 1 to embodiment 4 is pressed respectively to standard test correlated performance as table 1
Note: horizontal and longitudinal value is more approaching shows that the angularity of material is lower, material surface is more smooth, glossiness test angle is that the surface gloss of the larger expression material of GS numeral is higher, from the test data in table 1, in embodiment 2 and enforcement 3 tests, gloss is better, but planeness is poor, and planeness is better in embodiment 4 tests, but glossiness is very poor, that glossiness and planeness are all fine and embodiment 1 tests the result obtaining, thereby compare to implementing 4 by implementing 1, can make low warpage filled nylon-6 6 materials of a kind of high gloss with nano level barium sulfate filled nylon-6 6, the glossiness of this material is high, surface finish can be taken into account and higher than common filling materials simultaneously, therefore can better be applied to material requirements high gloss, the electronics of low warpage, electrical equipment, machinery, automobile and other industries.
Wherein, tensile strength is pressed ISO 527 standard tests, and flexural strength is pressed ISO 178 standard tests, notched Izod impact strength ISO 179-1 standard test, and shrinking percentage is pressed ISO 3521 standard tests, and glossiness is pressed ISO 2813 standard tests.

Claims (9)

1. high gloss low-warpage nylon dragon 66 materials, made by the raw material of following weight percent:
2. a kind of high gloss low-warpage nylon dragon according to claim 1 66 materials, is characterized in that: the relative viscosity of described Nylon 66 is 2.3~2.8, and its relative viscosity is to test gained according to standard ISO 307.
3. a kind of high gloss low-warpage nylon dragon according to claim 1 66 materials, is characterized in that: in described Nylon 66, the weight percent of moisture need be controlled at below 0.15%.
4. a kind of high gloss low-warpage nylon dragon according to claim 1 66 materials, is characterized in that: described nano barium sulfate is nano level barium sulfate, and its particle diameter scope is at 0.5 μ m~10 μ m.
5. a kind of high gloss low-warpage nylon dragon according to claim 1 66 materials, is characterized in that: described dispersion agent is silicone powder.
6. a kind of high gloss low-warpage nylon dragon according to claim 1 66 materials, is characterized in that: described oxidation inhibitor is be obstructed ketone and phosphorous acid ester compound of one.
7. a kind of high gloss low-warpage nylon dragon according to claim 1 66 materials, is characterized in that: described nucleator is the careful powdered mixture of organic composition and inorganic components.
8. a kind of high gloss low-warpage nylon dragon according to claim 1 66 materials, is characterized in that: described coupling agent can be aluminate coupling agent, titanate coupling agent or silane coupling agent.
9. the preparation method of high gloss low-warpage nylon dragon 66 materials as described in claim 1-8, it is characterized in that: first Nylon 66, nano barium sulfate, dispersion agent, oxidation inhibitor, nucleator, coupling agent are put into high mixing machine mixing discharging after 2-5 minute by certain part by weight, then the material mixing is inserted in forcing machine by the main opening for feed of twin screw extruder, through water-cooled, air-dry, extruding pelletization, temperature in its whole granulation process should be controlled at 220-280 DEG C, and screw speed is controlled at 300~400RPM.
CN201410256335.XA 2014-06-09 2014-06-09 High-gloss low-warpage nylon 66 material and preparation method thereof Pending CN104031384A (en)

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Cited By (5)

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CN106589919A (en) * 2015-10-19 2017-04-26 财团法人纺织产业综合研究所 Masterbatch for abrasion resistant fiber and method of preparing the same and abrasion resistant fiber prepared by using the same
CN106810844A (en) * 2017-02-13 2017-06-09 晋城凤凰实业有限责任公司 modified polyphenyl ether composition and preparation method
CN106967294A (en) * 2017-04-28 2017-07-21 深圳市科聚新材料有限公司 Polyamide compoiste material and preparation method thereof
CN110079082A (en) * 2019-04-17 2019-08-02 温州科力塑业有限公司 66 materials of a kind of high glaze low-warpage nylon dragon and preparation method thereof
CN110079085A (en) * 2019-06-03 2019-08-02 合复新材料科技(无锡)有限公司 A kind of transparent nylon composite material with wear-resisting ageing-resistant yellowing-resistant, preparation method and its application in communication apparatus rear cover

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WO2008135545A1 (en) * 2007-05-04 2008-11-13 Sachtleben Chemie Gmbh Plastic containing barium sulfate
CN101376744A (en) * 2008-09-04 2009-03-04 中国蓝星(集团)总公司 Nylon 6 complex and preparation thereof
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Application publication date: 20140910