CN109265993A - A kind of composition and preparation method thereof with high dielectric strength - Google Patents
A kind of composition and preparation method thereof with high dielectric strength Download PDFInfo
- Publication number
- CN109265993A CN109265993A CN201811120347.4A CN201811120347A CN109265993A CN 109265993 A CN109265993 A CN 109265993A CN 201811120347 A CN201811120347 A CN 201811120347A CN 109265993 A CN109265993 A CN 109265993A
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- dielectric strength
- high dielectric
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- nylon
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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
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
It include following components and parts by weight the invention discloses a kind of composition with high dielectric strength: 5-45 parts of polyolefin resin；50-95 parts of nylon resin；3-10 parts of compatilizer；0-10 parts of elastomer；0.1-2 parts of antioxidant；0.1-2 parts of processing aid.In the present invention while having excellent dielectric strength and scratch resistant performance, the compatibility between polyolefin resin and polar molecule is improved, there is good rigidity and low temperature impact performance.
Description
Technical field
The present invention relates to processing modified plastics preparation field, in particular to a kind of composition with high dielectric strength and its
Preparation method.
Background technique
With auto industry, the development of electronic enterprises, the requirement for safety is higher and higher, publication in 2011
Motor Vehicle Safety Standard ISO 26262 for automotive electronics safety more stringent requirements are proposed, more and more enterprises pass through pipe
Reason and technical measures improve the general safety of vehicle operation.
The mating industry of household electrical appliance --- family's electrical wiring industry develops with the fast development of household electric appliances, whole at present
Body there are entry thresholds it is low, Product Safety is low the problems such as, become household electrical appliances industry development a big hidden danger.
For wiring used in electronic apparatus and car industry, anti-flammability, heat resistance, insulating properties and corrosion resistant have generally been required
Corrosion, in addition, the feature of environmental protection is also one of the aspect considered.But current bittern-free flame-proof material is not dominant in terms of mechanical property,
Mainstream is not formed, only has application in very a small range, in the coming period of time, brominated fire proofing still may be weight
The research direction of point.
On some high-end automotive wire bundles, household electrical appliance cable, nylon is the first choice of material, because nylon has well
Heat resistance, anti-flammability, show on mechanics also quite excellent, but slowly find a problem later, be exactly nylon in water suction, inhale
After oil, the sharp falls such as dielectric strength, CTI, actual in use, it has also been found that product breakdown the problem of burning, former
Because may be from the dirt accumulation with chemical substance in water suction, oil suction and the environment in various aspects, including nylon, make product
Electrical property be greatly lowered.
The method for reducing nylon water suction at present mainly increases glass fiber content, using long-chain nylon etc., but can bring
Problem, such as cost it is excessively high, do not meet product requirement, therefore this is not the method for an economy.In addition, the alloy of PP and PA
Water absorption rate can also be reduced, but the heat resistance of PP itself is insufficient, also affects the heat resistance and ageing properties of alloy.
Summary of the invention
The purpose of the present invention, be exactly to solve the above-mentioned problems and provide a kind of composition with high dielectric strength and
Preparation method improves polyolefin resin and polar molecule while having excellent dielectric strength and scratch resistant performance
Between compatibility, have good rigidity and low temperature impact performance.
The object of the present invention is achieved like this:
A kind of composition with high dielectric strength of the invention includes following components and parts by weight:
Above-mentioned a kind of composition with high dielectric strength, wherein polyolefin resin is cyclic olefin polymer, cycloolefin
At least one of copolymer, poly(4-methyl-1-pentene).
A kind of above-mentioned composition with high dielectric strength, wherein nylon resin be nylon 6, in nylon66 fiber at least
It is a kind of.
Above-mentioned a kind of composition with high dielectric strength, wherein compatilizer is that poly(4-methyl-1-pentene) is grafted Malaysia
At least one of acid anhydrides, cyclic olefin polymer grafted maleic anhydride, cyclic olefine copolymer grafted maleic anhydride.
Above-mentioned a kind of composition with high dielectric strength, wherein elastomer is polyolefin elastomer, ethylene-propylene-diene monomer
At least one of glue, poly- (Ethylene/Butylene)-polystyrene block copolymer.
A kind of above-mentioned composition with high dielectric strength, wherein processing aid be in release agent and lubricant extremely
Few one kind.
Above-mentioned a kind of composition with high dielectric strength, wherein release agent is paraffin.
Above-mentioned a kind of composition with high dielectric strength, wherein lubricant N, N '-ethylene bis stearamide, hard
At least one of fatty acid magnesium, calcium stearate, zinc stearate, erucyl amide and its derivative.
The present invention also provides a kind of preparation methods of composition with high dielectric strength comprising the steps of:
Step 1: prepare raw material according to following components and parts by weight:
Step 2: by polyolefin resin, nylon resin, compatilizer, elastomer, antioxidant, the processing aid in step 1
It is placed in high mixer, after being uniformly mixed, is put into double screw extruder, at 100-450 revs/min of screw speed, temperature is
Under conditions of 200-290 DEG C, melt blending, extruding pelletization are carried out.
Beneficial effects of the present invention are as follows:
1. polyolefin significantly improves the water imbibition of nylon base material, material is made to keep relatively good heat resistance；
2. improving dielectric strength of the nylon-based products in equilibrium state, applicable range is increased；
3. maleic anhydride stem grafting polyolefin acts not only as active component and promotes to form the network system in the present invention, simultaneously
The compatibility between nylon resin and polar compound can be improved, the alloy property after improving material has persistence, stability；
Specific embodiment
Below in conjunction with embodiment, the invention will be further described.
The starting components and parts by weight of embodiment 1-6 and comparative example 1-2 are as shown in table 1:
The starting components and parts by weight of table 1 embodiment 1-6 and comparative example 1-2
Embodiment 1:
Step 1: prepare raw material according to the component and part in table 1；
Step 2: raw material ready in step 1 are placed in high mixer, after being uniformly mixed, are put into twin-screw
Extruder under conditions of temperature is 200-270 DEG C, carries out melt blending, squeezes out and make at 100-450 revs/min of screw speed
Grain.
Embodiment 2:
Step 1: prepare raw material according to the component and part in table 1；
Step 2: raw material ready in step 1 are placed in high mixer, after being uniformly mixed, are put into twin-screw
Extruder under conditions of temperature is 240-290 DEG C, carries out melt blending, squeezes out and make at 100-450 revs/min of screw speed
Grain.
Embodiment 3:
Step 1: prepare raw material according to the component and part in table 1；
Step 2: raw material ready in step 1 are placed in high mixer, after being uniformly mixed, are put into twin-screw
Extruder under conditions of temperature is 230-270 DEG C, carries out melt blending, squeezes out and make at 100-450 revs/min of screw speed
Grain, can
Embodiment 4:
Step 1: prepare raw material according to the component and part in table 1；
Step 2: raw material ready in step 1 are placed in high mixer, after being uniformly mixed, are put into twin-screw
Extruder under conditions of temperature is 200-240 DEG C, carries out melt blending, squeezes out and make at 100-450 revs/min of screw speed
Grain.
Embodiment 5:
Step 1: prepare raw material according to the component and part in table 1；
Step 2: raw material ready in step 1 are placed in high mixer, after being uniformly mixed, are put into twin-screw
Extruder under conditions of temperature is 200-240 DEG C, carries out melt blending, squeezes out and make at 100-450 revs/min of screw speed
Grain.
Embodiment 6:
Step 1: prepare raw material according to the component and part in table 1；
Step 2: raw material ready in step 1 are placed in high mixer, after being uniformly mixed, are put into twin-screw
Extruder under conditions of temperature is 230-270 DEG C, carries out melt blending, squeezes out and make at 100-450 revs/min of screw speed
Grain.
Comparative example 1:
S1: prepare raw material according to the component and part in table 1；
S2: raw material ready in S2 being placed in high mixer, after being uniformly mixed, are put into double screw extruder,
At 100-450 revs/min of screw speed, under conditions of temperature is 230-270 DEG C, melt blending, extruding pelletization are carried out.
Comparative example 2:
S1: prepare raw material according to the component and part in table 1；
S2: raw material ready in S2 being placed in high mixer, after being uniformly mixed, are put into double screw extruder,
At 100-450 revs/min of screw speed, under conditions of temperature is 200-260 DEG C, melt blending, extruding pelletization are carried out.
The template of embodiment 1-6 and comparative example 1-2 are carried out to the test of mechanical property, dielectric strength, wherein be situated between
It needs template to be first placed on 85 DEG C, 24 hours in the environmental treatment case of 85%RH when the test of electric strength, be situated between again after cooling
The test of electric strength.Embodiment 1-6 and comparative example 1-2 test result ginseng are shown in Table 2:
2 embodiment 1-6 of table and comparative example 1-2 test result
In conjunction with Tables 1 and 2 as can be seen that polyolefin resin significantly improves the water imbibition of nylon resin, in low water absorbable
While maintain the preferable heat resistance of material；Polyolefin resin significantly improves dielectric strength of the nylon in equilibrium state,
Increase applicable range；Compatilizer in the present invention acts not only as active component and promotes to form the network system, simultaneously
The compatibility between polyolefin resin and polar compound, the performance tool of the composition with high dielectric strength of the invention can be improved
There are persistence, stability；The technical solution that the present invention selects polyolefin resin and nylon resin to combine, is being substantially improved dielectric
While intensity, the present invention still has excellent heat resistance and mechanical property.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or modification, therefore all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (8)
1. a kind of composition with high dielectric strength, which is characterized in that the composition with high dielectric strength include with
Lower component and part:
2. a kind of composition with high dielectric strength as described in claim 1, which is characterized in that the polyolefin resin is
At least one of cyclic olefin polymer, cyclic olefine copolymer, poly(4-methyl-1-pentene).
3. a kind of fire-retardant combination with high dielectric strength as described in claim 1, which is characterized in that the nylon resin
For at least one of nylon 6, nylon66 fiber.
4. a kind of composition with high dielectric strength as described in claim 1, which is characterized in that the compatilizer is poly- 4-
Methyl-1-pentene grafted maleic anhydride, cyclic olefin polymer grafted maleic anhydride, in cyclic olefine copolymer grafted maleic anhydride
It is at least one.
5. a kind of composition with high dielectric strength as described in claim 1, which is characterized in that the processing aid is de-
At least one of mould agent and lubricant.
6. a kind of composition with high dielectric strength as claimed in claim 5, which is characterized in that the release agent is stone
Wax.
7. a kind of composition with high dielectric strength as claimed in claim 5, which is characterized in that the lubricant is N,
At least one of N '-ethylene bis stearamide, magnesium stearate, calcium stearate, zinc stearate, erucyl amide and its derivative.
8. a kind of preparation method of the composition with high dielectric strength as described in claim 1, which is characterized in that comprising with
Lower step:
Step 1: prepare raw material according to following components and parts by weight:
Step 2: by polyolefin resin, nylon resin, compatilizer, elastomer, antioxidant, the processing aid in the step 1
It is placed in high mixer, after being uniformly mixed, is put into double screw extruder, at 100-450 revs/min of screw speed, temperature is
Under conditions of 200-290 DEG C, melt blending, extruding pelletization are carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811120347.4A CN109265993A (en) | 2018-09-21 | 2018-09-21 | A kind of composition and preparation method thereof with high dielectric strength |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811120347.4A CN109265993A (en) | 2018-09-21 | 2018-09-21 | A kind of composition and preparation method thereof with high dielectric strength |
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| CN109265993A true CN109265993A (en) | 2019-01-25 |
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| CN201811120347.4A Pending CN109265993A (en) | 2018-09-21 | 2018-09-21 | A kind of composition and preparation method thereof with high dielectric strength |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112940495A (en) * | 2020-12-31 | 2021-06-11 | 华南理工大学 | Nylon dielectric composite material with high resistance stability and preparation method and application thereof |
| CN114479333A (en) * | 2022-01-13 | 2022-05-13 | 厦门美科安防科技股份有限公司 | Low-creep high-toughness cycloolefin copolymer composite material and preparation method thereof |
Citations (6)
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|---|---|---|---|---|
| JPH07109419A (en) * | 1993-10-15 | 1995-04-25 | Mitsui Petrochem Ind Ltd | Cycloolefinic resin composition |
| EP0714946A2 (en) * | 1991-09-12 | 1996-06-05 | Mitsui Petrochemical Industries, Ltd. | Cycloolefin resin composition |
| CN1984957A (en) * | 2004-07-15 | 2007-06-20 | 东丽株式会社 | Thermoplastic resin composition |
| CN102675871A (en) * | 2011-03-16 | 2012-09-19 | 上海纽克新材料科技有限公司 | Low-water absorption polyamide 66/polypropylene alloy material |
| CN103214841A (en) * | 2013-04-17 | 2013-07-24 | 常熟市康宝医疗器械厂 | Preparation method of polypropylene-modified polyamide composite |
| CN103396611A (en) * | 2013-07-30 | 2013-11-20 | 暨南大学 | Low-water-absorptivity heat-conducting wear-resistant polymer alloy, and preparation method and application thereof |
-
2018
- 2018-09-21 CN CN201811120347.4A patent/CN109265993A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0714946A2 (en) * | 1991-09-12 | 1996-06-05 | Mitsui Petrochemical Industries, Ltd. | Cycloolefin resin composition |
| JPH07109419A (en) * | 1993-10-15 | 1995-04-25 | Mitsui Petrochem Ind Ltd | Cycloolefinic resin composition |
| CN1984957A (en) * | 2004-07-15 | 2007-06-20 | 东丽株式会社 | Thermoplastic resin composition |
| CN102675871A (en) * | 2011-03-16 | 2012-09-19 | 上海纽克新材料科技有限公司 | Low-water absorption polyamide 66/polypropylene alloy material |
| CN103214841A (en) * | 2013-04-17 | 2013-07-24 | 常熟市康宝医疗器械厂 | Preparation method of polypropylene-modified polyamide composite |
| CN103396611A (en) * | 2013-07-30 | 2013-11-20 | 暨南大学 | Low-water-absorptivity heat-conducting wear-resistant polymer alloy, and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王善勤等: "《塑料配方设计问答》", 31 January 2003 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112940495A (en) * | 2020-12-31 | 2021-06-11 | 华南理工大学 | Nylon dielectric composite material with high resistance stability and preparation method and application thereof |
| CN114479333A (en) * | 2022-01-13 | 2022-05-13 | 厦门美科安防科技股份有限公司 | Low-creep high-toughness cycloolefin copolymer composite material and preparation method thereof |
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