CN103571184B - Nylon 6 molding composition, and preparation method and application thereof - Google Patents
Nylon 6 molding composition, and preparation method and application thereof Download PDFInfo
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- CN103571184B CN103571184B CN201210270988.4A CN201210270988A CN103571184B CN 103571184 B CN103571184 B CN 103571184B CN 201210270988 A CN201210270988 A CN 201210270988A CN 103571184 B CN103571184 B CN 103571184B
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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
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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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
- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
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Abstract
The invention discloses a nylon 6 molding composition, and a preparation method and application thereof. The composition comprises the following components: nylon 6 resin and a toughening component, wherein the toughening component comprises (A) unsaturated acid grafted polyolefin elastomer or unsaturated anhydride grafted polyolefin elastomer, and (B) polyolefin. The invention further discloses the preparation method and application of the nylon 6 molding composition. The nylon 6 molding composition has good rigidity while the flexibility is improved, and the cost is low.
Description
Technical field
The present invention relates to a kind of compositionss, more particularly to a kind of moulding compound, the preparation method and applications of nylon 6.
Background technology
Nylon 6 has wear-resisting, oil resistant, impact resistance, endurance, that corrosion-resistant, self-lubricating property is excellent, coefficient of friction is little etc. is excellent
Different characteristic, using quite varied.But there is the weakness of dry state and low temperature impact properties difference in common nylon 6 so as to application
By a definite limitation.It is blended come tenacity increased nylon using elastomer graft reactive group and nylon 6 resin in prior art.But
Elastomer and nylon 6 mixing, while improving toughness of material, also reduce the rigidity of material.
The content of the invention
In sum, the present invention is necessary to provide a kind of toughened Nylon 6 moulding compound of high rigidity.
Additionally, there is a need to providing a kind of preparation method of above-mentioned toughened Nylon 6 moulding compound.
A kind of moulding compound of nylon 6, including the component of following weight portion：
Nylon 6 resin：70.0-85.0；
Toughening element：15.0-30.0；
Wherein, toughening element includes following components：
(A) unsaturated acids grafted polyolefin olefin elastomer or unsaturated acid anhydride grafted polyolefin olefin elastomer；
(B) polyolefin；
Wherein,（A）Component with（B）The weight ratio of component is 1:4-7:3.
If no special instructions, POE is ethylene-octene copolymer described in present invention below.
Wherein, it is 2.0-3.4 that the nylon 6 resin tests relative viscosity according to standard ISO307, and preferred relative viscosity is
The nylon 6 resin of 2.4-2.8.Nylon 6 resin relative viscosity is higher, and the toughness of toughened Nylon 6 moulding compound is corresponding higher, but
Nylon 6 resin relative viscosity is raised, and its processing characteristics declines.Mechanical performance and processing characteristics are taken into account, it is therefore preferable that relative viscosity
The nylon 6 resin of 2.4-2.8.
Wherein, the nylon 6 resin is 70-80 weight portions.
Wherein, the toughening element is 15-25 weight portions.
Wherein, the toughening element（A）For（A1）Acrylic acid-grafted ethylene-octene copolymer（POE-g-AA）And/or
（A2）Maleic anhydride grafted ethene-octene copolymer（POE-g-MAH）.
Wherein, the toughening element（A）In, preferred maleic anhydride grafted ethene-octene copolymer（POE-g-MAH）.
Wherein, in the toughening element（A）Component with（B）The weight ratio of component is 2:3-3:2.
In the toughening element,（A）The percent grafting of unsaturated acids or unsaturated acid anhydride in component is 0.5%-1.3%, is melted
Body flow rate is 0.5-2.0g/10min.Wherein, percent grafting adopts titrimetry, with phenolphthalein indicator, with acetic acid-dimethylbenzene
Solution titration determination.According to ASTM D1238 test, test condition is at 190 DEG C plus load 2.16Kg to melt flow rate (MFR).
The polyolefin is crystalline polyvinyls, including ultra-high molecular weight polyethylene（UHMWPE）, high density
Polyethylene（HDPE）, linear low density polyethylene（LLDPE）And Low Density Polyethylene（LDPE）.Wherein, preferred HDPE or
LLDPE or LDPE, further preferred HDPE.
Wherein, also including the processing aid of 0-0.6 weight portions in the moulding compound of the nylon 6.
The processing aid includes at least one in antioxidant, lubricant and nucleator.
The antioxidant be N, N ' -1,6- dihexyls two (3,5- bis- (1,1- dimethyl ethyls) -4- hydroxyls) phenylpropyl alcohol acyl（It is logical
With entitled antioxidant 1098）, four (β-(3,5- di-tert-butyl-hydroxy phenyls) propanoic acid) pentaerythritol esters（General entitled antioxygen
Agent 1010）, three (2,4- di-tert-butyl-phenyls) phosphite esters（General entitled irgasfos 168）Or in mantoquita composite antioxidant extremely
Few one kind.Further preferred antioxidant 1098.
The mantoquita composite antioxidant is made up of the potassium iodide of 50-90wt% and the Hydro-Giene (Water Science). of 10-50wt%, Huo Zheyou
The potassium bromide of 50-90wt% is constituted with the Hydro-Giene (Water Science). of 10-50wt%.
The lubricant is OPE, montanic acid wax, calcium stearate, aluminium stearate, silicone, N, and N '-ethylene is double
Stearmide（EBS）Or N, N '-ethylene bis stearamide graft（TAF）, further preferred montanic acid ester type waxes.
The nucleator is inorganic nucleator, and/or organic nucleating agent.The grain diameter of the inorganic nucleator is less than 1 μ
m。
The nucleator is in Pulvis Talci, montmorillonite, Calcium Carbonate, sodium benzoate, Sorbitol dibenzyl ester or carboxylic acid sodium salt
It is at least one.
The further preferred Pulvis Talci of the nucleator.
Wherein, the moulding compound of the nylon 6 is further included：The conventional additions such as anti-UV agent, antistatic additive, coloring agent
Agent.But its addition less than nylon 6 resin and toughening element weight and 0.5wt%, it is to avoid because of these typical additives
Addition affects the rigidity of the moulding compound of nylon 6.
A kind of moulding compound of nylon 6, is made up of the component of following weight portion：
Nylon 6 resin：70.0-85.0；
Toughening element：15.0-30.0；
Wherein, toughening element is composed of the following components：
(A) unsaturated acids grafted polyolefin olefin elastomer or unsaturated acid anhydride grafted polyolefin olefin elastomer；
(B) polyolefin；
Wherein,（A）Component with（B）The weight ratio of component is 1:4-7:3..
Separately, the present invention also provides a kind of preparation method of the moulding compound of nylon 6, comprises the following steps：
By nylon 6 resin and toughening element is with high mixer mix homogeneously or uses premixing machine mix homogeneously, extrusion is added to
In machine, the melting extrusion pelletize at 160-270 DEG C prepares the moulding compound of nylon 6 of high impact.
In the preparation method of the moulding compound of nylon of the present invention 6, due to (A) unsaturated acids grafted polyolefin olefin elastomer or not
Saturation acid anhydride-grafted polyolefin elastomer and (B) polyolefinic collective effect, the moulding compound of nylon 6 for preparing has
Higher melt strength, therefore, the obtained moulding compound of nylon 6 of the present invention is in addition to it can be used for injection mo(u)lding, it may also be used for squeeze
Go out molding or blow molding.
A kind of moulding compound of the nylon 6 is applied to electric, electric tool, transportation, automobile, machinery, instrument
The fields such as table, building, Aero-Space and defence and military.
Compare prior art, the moulding compound of nylon of the present invention 6, add (A) unsaturated acids grafted polyolefin olefin elastomer or
Unsaturated acid anhydride grafted polyolefin olefin elastomer；And (B) is polyolefin tenacity-increased, and（A）Component with（B）The weight ratio of component is 1:4-
7:3.Nylon 6 also remain higher rigidity while toughness reinforcing, realize the rigidity-toughness balanced of toughened Nylon 6, and cost is more
It is low.
Specific embodiment
Moulding compound of nylon of the present invention 6 and preparation method thereof is done with reference to some specific embodiments is further retouched
State.Specific embodiment is of the invention to further describe, non-limiting protection scope of the present invention.
The present invention provides a kind of moulding compound of nylon 6, including the component of following weight portion：
Nylon 6 resin：70.0-85.0；
Toughening element：15.0-30.0；
Wherein, toughening element includes following components：
(A) unsaturated acids grafted polyolefin olefin elastomer or unsaturated acid anhydride grafted polyolefin olefin elastomer；
(B) polyolefin；
Wherein,（A）Component with（B）The weight ratio of component is 1:4-7:3.
Wherein, it is 2.0-3.4 that the nylon 6 resin tests relative viscosity according to standard ISO307, and preferred relative viscosity is
The nylon 6 resin of 2.4-2.8.
Wherein, it is described（A）Component with（B）The weight ratio of component is 1:4-7:3, further preferred 2:3-3:2.
Wherein, the toughening element（A）For（A1）Acrylic acid-grafted ethylene-octene copolymer（POE-g-AA）And/or
（A2）Maleic anhydride grafted ethene-octene copolymer（POE-g-MAH）.
The toughening element（A）It is preferred that（A2）POE-g-MAH.
In the toughening element,（A）The percent grafting of unsaturated acids or unsaturated acid anhydride in component is 0.5%-1.3%, is melted
Body flow rate is 0.5-2.0g/10min.Wherein, percent grafting is given instruction agent using phenolphthalein, with acetic acid-xylene solution titration
Determine.According to ASTM D1238 test, test condition is at 190 DEG C plus load 2.16Kg to melt flow rate (MFR).
A kind of moulding compound of nylon 6, is made up of the component of following weight portion：
Nylon 6 resin：70.0-85.0；
Toughening element：15.0-30.0；
Wherein, toughening element is composed of the following components：
(A) unsaturated acids grafted polyolefin olefin elastomer or unsaturated acid anhydride grafted polyolefin olefin elastomer；
(B) polyolefin；
Wherein,（A）Component with（B）The weight ratio of component is 1:4-7:3.
The present invention will be added in extruder after nylon 6 resin and toughening element high mixer or premixing machine mix homogeneously and melted
Melt extruding pelletization, the moulding compound of nylon 6 of the present invention is obtained, Jing injection mouldings or extrusion molding or blow molding system after being dried
Standby finished product.
It is illustrated in the way of specific embodiment below.The species and content pair of lubricant, nucleator and antioxidant
Less, following examples are with montanic acid ester type waxes, Pulvis Talci, antioxidant 1098 for the performance impact of the moulding compound of nylon of the present invention 6
As a example by be illustrated, differ a citing.
It is all the present invention provide embodiments in, there is provided raw material can from market buying obtain.Wherein, the tree of nylon 6
Selected from the M2800 of Meida Nylon Co., Ltd., Xinhui, Guangdong, its relative viscosity is 2.8 to fat, or Xinhui of Guangdong Province is beautiful up to chinlon
The M2400 of limited company, its relative viscosity is 2.4.POE-g-MAH is selected from the Fusabond MN493D of DuPont,
Its melt flow rate (MFR) is 1.2g/10min, and the percent grafting of MAH is 0.8%.The HDPE trades mark are DMDA8008, and the trade mark of LDPE is
The trade mark of LB7500N, LLDPE is LL6101XR.Montanic acid ester type waxes is selected from Licowax E.Talcous particle diameter is 0.8 μm；With
Under it is all the present invention provide embodiments in raw material be weight portion.
The moulding compound of nylon 6 that the present invention is prepared prepares batten and carries out following performance test according to standard：Cantilever
Beam notch impact strength：Tested by ISO180/1A, the size of sample is 80 × 10 × 4mm3, notch type A；Bending moduluses：
Tested by ISO178, the size of sample is 80 × 10 × 4mm3, test speed is 2mm/min.
Embodiment 1
By 80 parts of M2800,6 parts of DMDA8008,14 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and
Extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares Buddhist nun at 160-270 DEG C
Imperial 6 moulding compounds.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 53KJ/m2；Bending moduluses are
1720MPa。
Embodiment 2
By 80 parts of M2800,8 parts of DMDA8008,12 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and
Extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares Buddhist nun at 160-270 DEG C
Imperial 6 moulding compounds.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 67.2KJ/m2；Bending moduluses are
1770MPa。
Embodiment 3
By 80 parts of M2800,10 parts of DMDA8008,10 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E with
And extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares at 160-270 DEG C
The moulding compound of nylon 6.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 72.8KJ/m2；Bending moduluses are
1830MPa。
Embodiment 4
By 80 parts of M2800,12 parts of DMDA8008,8 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and
Extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares Buddhist nun at 160-270 DEG C
Imperial 6 moulding compounds.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 74.9KJ/m2；Bending moduluses are
1880MPa。
Embodiment 5
By 80 parts of M2800,14 parts of DMDA8008,6 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and
Extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares Buddhist nun at 160-270 DEG C
Imperial 6 moulding compounds.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 26.7KJ/m2；Bending moduluses are
1920MPa。
Embodiment 6
By 80 parts of M2800,16 parts of DMDA8008,4 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and
Extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares Buddhist nun at 160-270 DEG C
Imperial 6 moulding compounds.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 22.4KJ/m2；Bending moduluses are
1980MPa。
Embodiment 7
By 85 parts of M2400,9 parts of DMDA8008,6 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and
Extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares Buddhist nun at 160-270 DEG C
Imperial 6 moulding compounds.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 39.8KJ/m2；Bending moduluses are
2100MPa。
Embodiment 8
By 85 parts of M2400,6 parts of DMDA8008,9 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and
Extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares Buddhist nun at 160-270 DEG C
Imperial 6 moulding compounds.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 43.2KJ/m2；Bending moduluses are
2040MPa。
Embodiment 9
By 70 parts of M2400,15 parts of DMDA8008,15 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E with
And extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares at 160-270 DEG C
The moulding compound of nylon 6.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 82.4KJ/m2；Bending moduluses are
1350MPa。
Embodiment 10
By 70 parts of M2400,12 parts of DMDA8008,18 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E with
And extruder is added after 0.2 part of Pulvis Talci high mixer mix homogeneously, melting extrusion pelletize, prepares at 160-270 DEG C
The moulding compound of nylon 6.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 77.2KJ/m2；Bending moduluses are
1540MPa。
Comparative example 1
By 80 parts of M2800,20 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and 0.2 part of Pulvis Talci
With extruder is added after high mixer mix homogeneously, the melting extrusion pelletize at 160-270 DEG C prepares the molding combination of nylon 6
Thing.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 39.8KJ/m2；Bending moduluses are
1620MPa。
Comparative example 2
By 80 parts of M2800,20 parts of DMDA8008,0.1 part of antioxidant, 1098,0.3 part of Licowax E and 0.2 part of Talcum
Extruder is added after powder high mixer mix homogeneously, the melting extrusion pelletize at 160-270 DEG C prepares the molding group of nylon 6
Compound.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 4.7KJ/m2；Bending moduluses are
2200MPa。
Comparative example 3
By 85 parts of M2400,15 parts of DMDA8008,0.1 part of antioxidant, 1098,0.3 part of Licowax E and 0.2 part of Talcum
Extruder is added after powder high mixer mix homogeneously, the melting extrusion pelletize at 160-270 DEG C prepares the molding group of nylon 6
Compound.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 4.8KJ/m2；Bending moduluses are
2300MPa。
Comparative example 4
By 85 parts of M2400,15 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and 0.2 part of Pulvis Talci
With extruder is added after high mixer mix homogeneously, the melting extrusion pelletize at 160-270 DEG C prepares the molding combination of nylon 6
Thing.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 30.4KJ/m2；Bending moduluses are
1840MPa。
Comparative example 5
By 70 parts of M2400,30 parts of MN493D, 0.1 part of antioxidant, 1098,0.3 part of Licowax E and 0.2 part of Pulvis Talci
With extruder is added after high mixer mix homogeneously, the melting extrusion pelletize at 160-270 DEG C prepares the molding combination of nylon 6
Thing.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 53KJ/m2；Bending moduluses are
1220MPa。
Comparative example 6
By 70 parts of M2400,30 parts of DMDA8008,0.1 part of antioxidant, 1098,0.3 part of Licowax E and 0.2 part of Talcum
Extruder is added after powder high mixer mix homogeneously, the melting extrusion pelletize at 160-270 DEG C prepares the molding group of nylon 6
Compound.
The moulding compound performance test of the nylon 6：Cantilever beam breach rushes intensity for 5.0KJ/m2；Bending moduluses are
1700MPa。
Table 1 below and table 2 are embodiment in the present invention and the component and performance comparison table of comparative example, are implemented in table 3 below and table 4
Example 11-22 adopts same embodiment with embodiment 1-10.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Comparative example 1 | Comparative example 2 | |
| M2800 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| DMDA8008 | 6 | 8 | 10 | 12 | 14 | 16 | 0 | 20 |
| MN493D | 14 | 12 | 10 | 8 | 6 | 4 | 20 | 0 |
| Antioxidant 1098 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Licowax E | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Pulvis Talci | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Cantilever beam breach rushes intensity/KJm-2 | 53 | 67.2 | 72.8 | 74.9 | 40.7 | 32.5 | 39.8 | 4.7 |
| Bending moduluses/MPa | 1720 | 1770 | 1830 | 1880 | 1920 | 1980 | 1620 | 2200 |
Table 2
| Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 | Comparative example 3 | Comparative example 4 | Comparative example 5 | Comparative example 6 | |
| M2400 | 85 | 85 | 70 | 70 | 85 | 85 | 70 | 70 |
| DMDA8008 | 9 | 6 | 15 | 12 | 15 | 0 | 0 | 30 |
| MN493D | 6 | 9 | 15 | 18 | 0 | 15 | 30 | 0 |
| Antioxidant 1098 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Licowax E | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Pulvis Talci | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Cantilever beam breach rushes intensity/KJm-2 | 39.8 | 43.2 | 82.4 | 77.2 | 4.8 | 30.4 | 53 | 5.0 |
| Bending moduluses/MPa | 2100 | 2040 | 1350 | 1540 | 2300 | 1840 | 1220 | 1700 |
Table 3
Table 4
The various embodiments described above can be obtained the moulding compound of nylon 6.It can be seen that toughening element from embodiment 1-15
15-30 weight portions are accounted for, and toughening element and polyolefinic weight ratio are 1:4-7:When 3, the toughness of the moulding compound of nylon 6 increases
Plus, and keep certain rigidity.From embodiment 2-4, embodiment 7-18 as can be seen that especially when toughening element with it is polyolefinic
Weight ratio is 2:3-3:When between 2, while the toughness of material increases, keep relatively preferably rigid, realize elastomer increasing
The rigidity-toughness balanced of toughened nylon 6.
The constituent content of the nylon 6 resin of embodiment 1-6 is constant, and nylon 6 resin is 80/ with the weight ratio of toughening element
20, as can be seen from Table 1 with the raising of HDPE contents in toughening element, characterize the parameter cantilever beam breach punching of toughness of material
Hit intensity first gradually increases, and then declines；With the raising of HDPE contents in toughening element, the bending of the moulding compound of nylon 6
Modulus increases, the rigidity raising of the moulding compound of nylon 6.The contrast of embodiment 1-6 and comparative example 1-2 understands, POE-g-MAH and
HDPE coordination plasticizings nylon 6, part HDPE replaces toughened Nylon 6 moulding compound ratio prepared by POE-g-MAH only with POE-g-
MAH is that the moulding compound of nylon 6 prepared by toughener has higher bending moduluses, than the Buddhist nun for only being prepared as toughener with HDPE
Imperial 6 moulding compounds have higher toughness.
Embodiment 7-8 is contrasted with comparative example 3-4 in table 2, and embodiment 9-10 and comparative example 5-6 are contrasted, it can be seen that HDPE
The moulding compound of nylon 6 prepared with POE-g-MAH coordination plasticizings PA6, the molding combination of nylon 6 with only POE-g-MAH toughness reinforcings
Thing is compared and rushes intensity and bending moduluses with higher cantilever beam breach.Illustrate compared with POE-g-MAH toughened Nylon 6s, to use
HDPE and POE-g-MAH coordination plasticizings nylon 6, while 6 moulding compound toughness of nylon is increased, make the molding combination of nylon 6
The rigidity of thing also increases.
In table 4 in embodiment 16-22, nylon 6 resin is 77/30 with the weight ratio of toughening element, and other components are identical.It is real
The weight ratio of POE-g-MAH and HDPE in a 16-18 is applied 1:4-7:Between 3, especially 2:3-3:Between 2；Embodiment 19-20
The weight ratio of middle POE-g-MAH and HDPE is more than 11:4；The weight ratio of POE-g-MAH and HDPE is less than 1 in embodiment 21-22:
4.Embodiment 16-18 comparative example 19-20, it can be seen that the good toughness of the moulding compound of nylon 6 in embodiment 19-20,
But rigidity is poor；Embodiment 16-18 comparative example 21-22, it can be seen that the moulding compound of nylon 6 in embodiment 21-22
Rigidity keep preferable, but toughening effect is poor.Therefore, it can be seen that working as POE- from embodiment 16-18 comparative example 19-22
The weight ratio of g-MAH and HDPE is 1:4-7:Between 3, especially 2:3-3:Between 2, the moulding compound of nylon 6 is in the same of toughness reinforcing
When, also remain higher rigidity.
The moulding compound of nylon of the present invention 6, adds（A）Unsaturated acids grafted polyolefin olefin elastomer or unsaturated acid anhydride are grafted
Polyolefin elastomer and (B) polyolefin component toughness reinforcing, and（A）Component with（B）The weight ratio of component is 1:4-7:3, in toughness reinforcing
While nylon 6, keep the rigidity of nylon 6 also relatively preferable.Especially when（A）Component with（B）The weight ratio of component is 2:3-3:2
When, while toughened Nylon 6 has higher toughness, also remain higher rigidity.
The moulding compound of nylon 6 of the present invention can apply to extremely wide field, such as electric, electric tool, traffic
Transport, automobile, machinery, instrument, building, Aero-Space and defence and military.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (9)
1. a kind of moulding compound of nylon 6, including the component of following weight portion：
Nylon 6 resin：70.0‐85.0；
Toughening element：15.0‐30.0；
Wherein, toughening element includes following components：
(A) maleic anhydride grafted ethene-octene copolymer；
(B)HDPE；
Wherein, (A) component and the weight ratio of (B) component are 2:3‐3:2.
2. a kind of moulding compound of nylon 6, is made up of the component of following weight portion：
Nylon 6 resin：70.0‐85.0；
Toughening element：15.0‐30.0；
Wherein, toughening element is composed of the following components：
(A) maleic anhydride grafted ethene-octene copolymer；
(B)HDPE；
Wherein, (A) component and the weight ratio of (B) component are 2:3‐3:2.
3. the moulding compound of nylon as claimed in claim 1 or 26, it is characterised in that：The nylon 6 resin is according to standard
The relative viscosity of ISO307 tests is 2.0-3.4.
4. the moulding compound of nylon as claimed in claim 36, it is characterised in that：The nylon 6 resin is according to standard ISO307
The relative viscosity of test is 2.4-2.8.
5. the moulding compound of nylon as claimed in claim 1 or 26, it is characterised in that：The nylon 6 resin is 70.0-80.0
Weight portion, the toughening element is 15.0-25.0 weight portions.
6. the moulding compound of nylon as claimed in claim 1 or 26, it is characterised in that：In the toughening element in (A) component
Maleic anhydride grafting ratio be 0.5%-1.3%, maleic anhydride grafted ethene-octene copolymer melt flow rate (MFR) be 0.5-
2.0g/10min；Wherein, the percent grafting adopts titrimetry, with phenolphthalein indicator, is surveyed with acetic acid-xylene solution titration
It is fixed；According to ASTM D1238 test, test condition is at 190 DEG C plus load 2.16Kg to melt flow rate (MFR).
7. the moulding compound of nylon as claimed in claim 16, it is characterised in that：Also include in the moulding compound of the nylon 6
The processing aid of 0-0.6 weight portions, the processing aid includes at least one in antioxidant, lubricant and nucleator.
8. a kind of preparation method of the moulding compound of nylon 6 as described in any one of claim 1-7, comprises the following steps：
By nylon 6 resin and toughening element high mixer or premixing machine mix homogeneously, in being added to extruder, in 160-270
Melting extrusion pelletize at DEG C, prepares the moulding compound of nylon 6 of high impact.
9. a kind of application of the moulding compound of nylon 6 as described in any one of claim 1-7, it is characterised in that：The nylon 6
Moulding compound is applied to electric, electric tool, transportation, machinery, instrument, building, Aero-Space and defence and military
Field.
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| CN201210270988.4A CN103571184B (en) | 2012-07-31 | 2012-07-31 | Nylon 6 molding composition, and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270988.4A CN103571184B (en) | 2012-07-31 | 2012-07-31 | Nylon 6 molding composition, and preparation method and application thereof |
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| CN103571184B true CN103571184B (en) | 2017-04-19 |
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|---|---|---|---|---|
| CN1445278A (en) * | 2003-04-10 | 2003-10-01 | 上海交通大学 | Super malleable nylon and its preparing method |
| CN101402793A (en) * | 2008-11-10 | 2009-04-08 | 上海金发科技发展有限公司 | Glass fiber-reinforced nylon 6-poly-p-benzene dicarboxylic acid butanediol ester alloy material and method of producing the same |
| CN101550271A (en) * | 2008-04-03 | 2009-10-07 | 惠州市华聚塑化科技有限公司 | Super toughness nylon resin and method for preparing same |
| CN102051043A (en) * | 2009-10-30 | 2011-05-11 | 上海金发科技发展有限公司 | High wear-resistant and cold-resistant toughened nylon composite material |
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2012
- 2012-07-31 CN CN201210270988.4A patent/CN103571184B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445278A (en) * | 2003-04-10 | 2003-10-01 | 上海交通大学 | Super malleable nylon and its preparing method |
| CN101550271A (en) * | 2008-04-03 | 2009-10-07 | 惠州市华聚塑化科技有限公司 | Super toughness nylon resin and method for preparing same |
| CN101402793A (en) * | 2008-11-10 | 2009-04-08 | 上海金发科技发展有限公司 | Glass fiber-reinforced nylon 6-poly-p-benzene dicarboxylic acid butanediol ester alloy material and method of producing the same |
| CN102051043A (en) * | 2009-10-30 | 2011-05-11 | 上海金发科技发展有限公司 | High wear-resistant and cold-resistant toughened nylon composite material |
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| CN103571184A (en) | 2014-02-12 |
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