CN110092981A - Meet the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material and its Shooting Technique of GB17761-2018 - Google Patents
Meet the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material and its Shooting Technique of GB17761-2018 Download PDFInfo
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- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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Abstract
The present invention provides a kind of electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018 and its Shooting Techniques.In parts by weight, it is made of following raw material: 87-95 parts of polypropylene, 15~25 parts of polypropylene elastomer, fire-retardant ageing-resistant packing agent 10-40 parts, 0.1-0.7 parts of foaming agent.Material of the invention takes full advantage of the excellent performance of polypropylene light weight and waterproof in the flame retardant property standard for meeting GB17761-2018.It is compared with existing polypropylene material, material melt flow rate of the invention is high, and cost of material is low, simple process.
Description
Technical field
The present invention relates to a kind of electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018 and
Its Shooting Technique.
Background technique
GB17761-2018 increases and is arranged as new electric vehicle professional standard " electric bicycle technical specification of security "
The key indexes such as flame retardant property, while providing that the complete vehicle quality of electric vehicle is less than or equal to 55kg.This new national standard is to electronic
The fire protecting performance and flame retardant property of vehicle solid non-metallic materials have higher requirement.
Polypropylene is one of kind most light in current all plastics, it is particularly stable to water, and water absorption rate in water is only
It is 0.01%, is not reacted with most chemicals.With good mechanical property, in addition to impact resistance, other mechanical property
Can be better than polyethylene, moulding processability is good.But polypropylene articles in use vulnerable to light, heat and oxygen effect and aging and
Easy firing.
Therefore the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018 is developed as existing rank
The research emphasis of section electric vehicle solid non-metallic materials.
Summary of the invention
Regarding the issue above, the present invention provides a kind of electric vehicle electrical contact for meeting GB17761-2018
Part halogen-free anti-flaming polypropylene material.
It is a further object of the present invention to provide a kind of electric vehicle electric contacting piece halogen-free flameproofs for meeting GB17761-2018
The Shooting Technique of polypropylene material.
In order to achieve the above objectives, present invention employs following technical proposals:
A kind of electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material meeting GB17761-2018, in parts by weight,
It is made of following raw material: 87-95 parts of polypropylene, 15~25 parts of polypropylene elastomer, fire-retardant ageing-resistant packing agent 10-40 parts, hair
0.1-0.7 parts of infusion.
It is described in the above-mentioned electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018
Polypropylene elastomer is by parts by weight, by 80-95 parts of polypropylene, 0.4-1 parts of vinylacetates, 0.6-1.2 parts of peroxide chemical combination
Object radical initiator is made.
It is described in the above-mentioned electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018
Fire-retardant ageing-resistant packing agent in parts by weight, by the nano-aluminum hydroxide of 40~60 parts of 5~25nm of crystallite dimension, 50~70 parts
The carbon black of 10~50nm of particle size, 70~80 parts of dehydrated alcohols, 5~8 parts of coupling agents are made.
It is described in the above-mentioned electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018
Polypropylene is the polypropylene homopolymer that melt flow rate (MFR) is not less than 3g/10 minutes under the conditions of 230 DEG C, 2.16kg loading.
In the above-mentioned electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018, feature
It is, the polypropylene elastomer is added by main feeding hopper by polypropylene and vinylacetate through high mixer after mixing
Melt blending is carried out into double screw extruder, 200~220 DEG C of barrel temperature by side spout by vinylacetate at the uniform velocity
It is injected into double screw extruder, 3~5h is dried after extruding pelletization and is made.
It is described in the above-mentioned electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018
After fire-retardant ageing-resistant packing agent is sufficiently mixed by nano-aluminum hydroxide, carbon black and dehydrated alcohol, coupling processing is carried out with coupling agent
After be made.
In the above-mentioned electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018,230
DEG C, melt flow rate (MFR) is not less than 35g/10 minute under the conditions of 2.16kg loading, under the experiment condition of GB/T 5169.16, fire
It burns classification and is not less than V-1.
A kind of Shooting Technique for the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material meeting GB17761-2018, packet
Containing following processing step:
(1) polypropylene and polypropylene elastomer are sufficiently mixed in high mixer, and double spiral shells is added to by main feeding hopper
Melt blending is carried out in bar extruder；Fire-retardant ageing-resistant packing agent is injected by side spout, extruding pelletization, after drying to obtain the final product
To modified polypropylene agglomerate,
(2) modified polypropylene agglomerate is put into mixing machine with foaming agent and is uniformly mixed,
(3) it by the injection injection (mo(u)lding) machine injection moulding of mixture obtained in (2), obtains and meets GB17761-2018's
Electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material.
In the injection molding work of the above-mentioned electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018
In skill, twin-screw extruder barrel temperature is 180 DEG C~210 DEG C, and screw speed is 200~240r/min, fire-retardant ageing-resistant to fill out
Expect to pass through liquid pump at the uniform velocity feeding when agent feeding, in the step (3), 190-210 DEG C of injecting machine material tube temperature, injection pressure
Power is 15-30MPa, injection speed 70-100mm/s.
According to made from the above-mentioned electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018
Product.
Compared with prior art, the present invention has the advantages that
1, material of the invention takes full advantage of polypropylene quality in the flame retardant property standard for meeting GB17761-2018
Light and waterproof excellent performance.It is compared with existing polypropylene material, material melt flow rate of the invention is high, cost of material
It is low, simple process.
2, the fire-retardant ageing-resistant packing agent of materials'use of the invention fully utilizes hydrogen-oxygen on the basis of fire-retardant filler
Change aluminium to eliminate smoke and ageing-resistant, antistatic, foaming the effect of carbon black, and be not required to additionally add antioxidant, nucleating agent, enhances simultaneously
Polyacrylic mechanical property.
3, the polypropylene elastomer of materials'use of the invention avoids conventional polypropylene bullet using isotactic polypropylene as matrix
Problem, and simple process is perhaps precipitated in phase when property is modifies, there is industrialized possibility.
Specific embodiment
It is involved in the present invention to raw material include:
Polypropylene homopolymer 1: Sinopec, trade mark T30S, melt flow rate (MFR) be 3.0g/10min (230 DEG C,
2.16Kg)；Abbreviation PP-1.
Polypropylene homopolymer 2: Central Plains petrochemical industry, trade mark Z11G, melt flow rate (MFR) be 25g/10min (230 DEG C,
2.16Kg)；Abbreviation PP-2.
Polypropylene homopolymer 3: U.S.'s Ineos, trade mark 100-GA35, melt flow rate (MFR) are 35g/10min (230
DEG C, 2.16Kg)；Abbreviation PP-3.
Polypropylene elastomer preparation reaction is as follows:
Wherein, polypropylene is polypropylene homopolymer；Vinylacetate (No. CAS: 108-05-4), selected from Jinan, benefit is raised
Chemical Co., Ltd.；Per-compound radical initiator includes alkylation peroxyesters compound and hydroperoxide kind chemical combination
Object, such as peroxidized t-butyl perbenzoate, peroxidating trimethyladipic acid di tert butyl carbonate, be cumyl hydroperoxide, the present invention
The per-compound radical initiator used is selected from the benzoyl peroxide first of Tianjin Polymer Chemical Aids Co., Ltd.
Tert-butyl acrylate.
In fire-retardant ageing-resistant packing agent: nano-aluminum hydroxide is selected from Guangzhou Huigu Chemical Co., Ltd, and carbon black is selected from Seiko
Epson Co., Ltd., dehydrated alcohol are selected from Changzhou and edify Chemical Co., Ltd., and it is limited that coupling agent is selected from one base industry of Shanghai
Company silane coupling agent KH-500.
Foaming agent can be one of inorganic chemical foaming agent or a variety of, and it is safe that the foaming agent that the present invention uses is selected from Zhejiang Shun
The ammonium hydrogen carbonate of rubber and plastic Science and Technology Ltd..
Test method of the present invention includes:
Flame retardant property: it is tested according to GB/T 5196.16, experimental condition is testing vertical flammability；
Melt flow rate (MFR): testing according to ASTM D-1238, and experimental condition is 230 DEG C, 2.16kg；
Izod notched impact strength is tested by ASTM D-256, experimental condition 1/4inch；
Heat distortion temperature presses ISO75A-1, and -2 tests, experimental condition 1.80MPa is unannealed.
Expansion ratio: by the thickness of bottom after measurement injection molding, and divided by the position under mold closed condition
Die cavity gap calculates.
Abscess collapses: injection foaming bottom surface portions after molding, for the position through-thickness from injection port 100mm
It cuts, is evaluated according to the state of internal larger bubbles by following standard using the section that amplification sem observation is cut.
Good: there is no the air entrapments of 1.2mm or more.
It is qualified: the air entrapment there are 1.2mm more than or lower than 1.5mm.
Defect: there are the air entrapments of 1.5mm or more.
Examples 1 to 6:
Polypropylene elastomer A: in parts by weight, by 80 parts of polypropylene, 0.4 part of vinylacetate, 0.6 part of per-compound
Radical initiator is made, abbreviation elastomer A.
Polypropylene elastomer B: in parts by weight, by 95 parts of polypropylene, 1 part of vinylacetate, 1.2 parts of per-compound are certainly
It is made of base initiator, abbreviation elastomer B.
Fire-retardant ageing-resistant packing agent A: in parts by weight, by 40 parts of crystallite dimensions 5~25nm nano-aluminum hydroxide,
50 parts of particle sizes are made in 10~50nm carbon black, 70 parts of dehydrated alcohols, 5 parts of coupling agents, abbreviation filler A.
Fire-retardant ageing-resistant packing agent B: in parts by weight, by 60 parts of crystallite dimensions 5~25nm nano-aluminum hydroxide,
70 parts of particle sizes are made in 10~50nm carbon black, 80 parts of dehydrated alcohols, 8 parts of coupling agents, abbreviation filler B.
A, prepare above-mentioned raw materials by the parts by weight of 1 constitutive material of table；
B, it prepares polypropylene elastomer: polypropylene and vinylacetate is passed through into main feeding hopper through high mixer after mixing
It is added in double screw extruder and carries out melt blending；Pass through side spout at 200~220 DEG C of barrel temperature for vinylacetate
At the uniform velocity it is injected into double screw extruder；3~5h is dried after extruding pelletization to obtain.
C, it prepares fire-retardant ageing-resistant packing agent: after nano-aluminum hydroxide, carbon black and dehydrated alcohol are sufficiently mixed, using silane
Coupling agent obtains after carrying out coupling processing.
D, the injection molding of halogen-free anti-flaming polypropylene material:
(1) polypropylene and polypropylene elastomer are sufficiently mixed in high mixer, and double spiral shells is added to by main feeding hopper
Melt blending is carried out in bar extruder；Twin-screw extruder barrel temperature be 180 DEG C~210 DEG C, screw speed be 200~
240r/min is at the uniform velocity injected fire-retardant ageing-resistant packing agent by liquid pump by side spout, extruding pelletization, after drying to obtain the final product
To modified polypropylene agglomerate；
(2) modified polypropylene agglomerate is put into mixing machine with foaming agent and is uniformly mixed；
(3) the injection injection (mo(u)lding) machine of mixture obtained in (2) is injection moulded, 190-210 DEG C of injecting machine material tube temperature,
Injection pressure is 15-30MPa, and injection speed 70-100mm/s, cooling time is 20~40s.It obtains and meets GB17761-
2018 electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material.
1 Examples 1 to 6 component of table and performance data
Comparative example 1~6:
In addition to polypropylene elastomer and/or fire-retardant ageing-resistant packing agent is not added, other conditions with previous embodiment phase
Together.Wherein comparative example 1 is compared with embodiment 1 and is not added with elastomer A；Comparative example 2 is compared with embodiment 1 and is not added with filler A；Comparison
Example 3 is compared with embodiment 3 and is not added with elastomer A；Comparative example 4 is compared with embodiment 3 and is not added with filler A；Comparative example 5 and implementation
Example 6 is compared and is not added with elastomer B；Comparative example 6 is compared with embodiment 6 and is not added with filler B.
Concrete component is referring to table 2, and wherein each component is in parts by weight.Related test result is as shown in table 2.
2 comparative example of table, 1~6 component and performance data
It is compared by the results of property of comparative example 1~6 and corresponding embodiment as it can be seen that suitable polypropylene is added in polypropylene
Elastomer and fire-retardant ageing-resistant packing agent can promote the property of material, and polypropylene elastomer can be obviously improved melt flows speed
Rate, fire-retardant ageing-resistant filler significantly improve the resistance to flame retardant property of material, while the synergistic effect of the two, obtain the performance of material
Substantial improvement is arrived.
Comparative example 7~12:
In addition to the injecting condition of halogen-free anti-flaming polypropylene material changes, other conditions are identical as previous embodiment.
Wherein, twin-screw extruder barrel temperature is lower than 180 DEG C to comparative example 7 compared with Example 1, and screw speed is lower than 200r/min,
Injecting machine material tube temperature is lower than 190 DEG C, and injection pressure is lower than 15MPa, and injection speed is lower than 70mm/s；Comparative example 8 and embodiment 1
It compares, injecting machine material tube temperature is lower than 190 DEG C, and injection pressure is lower than 15MPa, and injection speed is lower than 70mm/s；Comparative example 9 and reality
It applies example 1 to compare, twin-screw extruder barrel temperature is higher than 210 DEG C, and screw speed is higher than 240r/min, and injecting machine material tube temperature is high
In 210 DEG C, injection pressure is higher than 30MPa, and injection speed is higher than 100mm/s；The twin-screw compared with Example 6 of comparative example 10
Extruder barrel temperature is lower than 180 DEG C, and screw speed is lower than 200r/min, and injecting machine material tube temperature is lower than 190 DEG C, injection pressure
Power is lower than 15MPa, and injection speed is lower than 70mm/s；For comparative example 11 compared with embodiment 6, injecting machine material tube temperature is higher than 210
DEG C, injection pressure is higher than 30MPa, and injection speed is higher than 100mm/s；Comparative example 12 compared with Example 6, double screw extruder
Barrel temperature be higher than 210 DEG C, screw speed be higher than 240r/min, injecting machine material tube temperature be higher than 210 DEG C, injection pressure be higher than
30MPa, injection speed are higher than 100mm/s.
Concrete component and injecting condition are referring to table 3, and wherein each component is in parts by weight.Related test result such as 3 institute of table
Show.
3 comparative example of table, 7~12 component, injecting condition and performance data
By the results of property comparison of comparative example 1~6 and corresponding embodiment as it can be seen that injecting condition is to the property of material of the present invention
It influences clearly, thus it is speculated that the injecting condition other than optimum range will lead to reaction and not carry out sufficiently, and then influence material
Chemistry, mechanical property.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018, which is characterized in that with
Parts by weight meter, is made of following raw material: 87-95 parts of polypropylene, 15~25 parts of polypropylene elastomer, and fire-retardant ageing-resistant packing agent
10-40 parts, 0.1-0.7 parts of foaming agent.
2. the electric vehicle electric contacting piece halogen-free polypropylene flame redardant material according to claim 1 for meeting GB17761-2018
Material, which is characterized in that the polypropylene elastomer is by parts by weight, by 80-95 parts of polypropylene, 0.4-1 parts of vinyl acetates
Ester, 0.6-1.2 parts of per-compound radical initiators are made.
3. the electric vehicle electric contacting piece halogen-free polypropylene flame redardant material according to claim 1 for meeting GB17761-2018
Material, which is characterized in that the fire-retardant ageing-resistant packing agent in parts by weight, by receiving for 40~60 parts of 5~25nm of crystallite dimension
Rice aluminium hydroxide, carbon black of 50~70 parts of particle sizes in 10~50nm, 70~80 parts of dehydrated alcohols, 5~8 parts of coupling agent systems
At.
4. the electric vehicle electric contacting piece halogen-free polypropylene flame redardant according to claim 1 or 2 for meeting GB17761-2018
Material, which is characterized in that the polypropylene is that melt flow rate (MFR) is not less than 3g/10 under the conditions of 230 DEG C, 2.16kg loading
The polypropylene homopolymer of minute.
5. the electric vehicle electric contacting piece halogen-free polypropylene flame redardant material according to claim 2 for meeting GB17761-2018
Material, which is characterized in that the polypropylene elastomer passes through master through high mixer by polypropylene and vinylacetate after mixing
Feeding hopper, which is added in double screw extruder, carries out melt blending, passes through side spout at 200~220 DEG C of barrel temperature for acetic acid
Vinyl acetate is at the uniform velocity injected into double screw extruder, and 3~5h is dried after extruding pelletization and is made.
6. the electric vehicle electric contacting piece halogen-free polypropylene flame redardant material according to claim 3 for meeting GB17761-2018
Material, which is characterized in that after the fire-retardant ageing-resistant packing agent is sufficiently mixed by nano-aluminum hydroxide, carbon black and dehydrated alcohol,
It is made after carrying out coupling processing with coupling agent.
7. meeting the electric vehicle electric contacting piece Halogen resistance of GB17761-2018 described according to claim 1~any one of 6
Fire polypropylene material, which is characterized in that melt flow rate (MFR) is not less than 35g/10 minutes under the conditions of 230 DEG C, 2.16kg loading,
Under the experiment condition of GB/T5169.16, burning classification is not less than V-1.
8. a kind of Shooting Technique for the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material for meeting GB17761-2018, special
Sign is, includes following processing step:
(1) polypropylene and polypropylene elastomer are sufficiently mixed in high mixer, and twin-screw is added to by main feeding hopper and is squeezed
Melt blending is carried out in machine out；Fire-retardant ageing-resistant packing agent is injected by side spout, extruding pelletization is changed after dry
Property polypropylene agglomerate,
(2) modified polypropylene agglomerate is put into mixing machine with foaming agent and is uniformly mixed,
(3) it by the injection injection (mo(u)lding) machine injection moulding of mixture obtained in (2), obtains and meets the electronic of GB17761-2018
Bicycle electrical contact halogen-free anti-flaming polypropylene material.
9. the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material according to claim 7 for meeting GB17761-2018
Shooting Technique, which is characterized in that in the step (1), twin-screw extruder barrel temperature be 180 DEG C~210 DEG C, screw rod
Revolving speed is 200~240r/min, by liquid pump at the uniform velocity feeding when fire-retardant ageing-resistant packing agent feeding, in the step (3),
190-210 DEG C of injecting machine material tube temperature, injection pressure 15-30MPa, injection speed 70-100mm/s.
10. meeting the electric vehicle electric contacting piece Halogen resistance of GB17761-2018 described according to claim 1~any one of 9
Fire product made from polypropylene material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910327422.2A CN110092981A (en) | 2019-04-23 | 2019-04-23 | Meet the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material and its Shooting Technique of GB17761-2018 |
| PCT/CN2019/118496 WO2020215700A1 (en) | 2019-04-23 | 2019-11-14 | Halogen-free flame retardant polypropylene material for electrical contact parts of electric vehicles in accordance with gb17761-2018 and injection molding process therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910327422.2A CN110092981A (en) | 2019-04-23 | 2019-04-23 | Meet the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material and its Shooting Technique of GB17761-2018 |
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| Publication Number | Publication Date |
|---|---|
| CN110092981A true CN110092981A (en) | 2019-08-06 |
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| CN201910327422.2A Pending CN110092981A (en) | 2019-04-23 | 2019-04-23 | Meet the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material and its Shooting Technique of GB17761-2018 |
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| CN (1) | CN110092981A (en) |
| WO (1) | WO2020215700A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020215700A1 (en) * | 2019-04-23 | 2020-10-29 | 台州市黄岩广环工贸有限公司 | Halogen-free flame retardant polypropylene material for electrical contact parts of electric vehicles in accordance with gb17761-2018 and injection molding process therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR043300A0 (en) * | 2000-09-29 | 2000-10-19 | Compco Pty Ltd | Halogen-free polymeric compositions |
| CN1786065A (en) * | 2005-11-14 | 2006-06-14 | 天津市润生塑胶制品有限公司 | Olefine kind resin and olefine kind thermoplastic elastomer high fire retarding foamed body and its manufacturing method |
| US8207270B2 (en) * | 2006-09-29 | 2012-06-26 | Exxonmobil Chemical Patents Inc. | Thermoplastic elastomer compositions, methods of making and articles made from the same |
| DK2331625T3 (en) * | 2008-09-05 | 2012-04-02 | Thor Gmbh | Flame retardant preparation containing a phosphonic acid derivative |
| CN102321285A (en) * | 2011-07-30 | 2012-01-18 | 江苏安格特新材料科技有限公司 | Soft low-smoke halogen-free inflaming retarding elastomer modified material and preparation method thereof |
| CN102367312A (en) * | 2011-09-26 | 2012-03-07 | 广州市聚赛龙工程塑料有限公司 | Flame retardant low foaming polypropylene material and preparation method thereof |
| CN102807707A (en) * | 2012-08-12 | 2012-12-05 | 深圳市沃尔核材股份有限公司 | Halogen-free flame-retarded polypropylene foam and preparation method thereof |
| CN110092981A (en) * | 2019-04-23 | 2019-08-06 | 台州市黄岩广环工贸有限公司 | Meet the electric vehicle electric contacting piece halogen-free anti-flaming polypropylene material and its Shooting Technique of GB17761-2018 |
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- 2019-04-23 CN CN201910327422.2A patent/CN110092981A/en active Pending
- 2019-11-14 WO PCT/CN2019/118496 patent/WO2020215700A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020215700A1 (en) * | 2019-04-23 | 2020-10-29 | 台州市黄岩广环工贸有限公司 | Halogen-free flame retardant polypropylene material for electrical contact parts of electric vehicles in accordance with gb17761-2018 and injection molding process therefor |
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| WO2020215700A1 (en) | 2020-10-29 |
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