CN109280284A - A kind of High Performance Shielding composite polyolefine material and preparation method thereof - Google Patents
A kind of High Performance Shielding composite polyolefine material and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of High Performance Shielding composite polyolefine materials and preparation method thereof, are made of the following components by weight: polyolefin is 80 parts -100 parts；Functionalization compounded mix is 10 parts -20 parts；Antioxidant is 0.1 part -0.5 part；Functionalization compounded mix is that fullerene is carried out surface amino groups modification, carries out acidification to carbon fiber, is eventually fabricated a kind of functionalization compounded mix of inierpeneirating network structure.Composite polyolefine material made from this technology, excellent physical properties, flame retardant property and electromagnetic shielding performance are also fine, have very big promotional value.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly relate to a kind of High Performance Shielding composite polyolefine material
And preparation method thereof.
Background technique
Polyolefin is a kind of important thermoplastic material, is widely used in automobile, household electrical appliance, mechanical fitting, office use
The fields such as product and Communication Equipment.Polyolefin has many advantages, such as light, nontoxic, odorless, good water absorption.It is answered in some specific materials
With in field, not only there is the requirement of higher physical property to polyolefin, also has to flame retardant property, electronic shield performance very high
It is required that common polyolefine material can no longer meet this requirement.
Given this kind of High Performance Shielding composite polyolefine material is made in reason, the technical program innovation, it has
There are good physical property, flame retardant property and electromagnetic shielding performance, this material not yet sees report so far, this is for extension
The application of composite polyolefine material has very important realistic meaning.
Summary of the invention
The object of the present invention is to provide a kind of High Performance Shielding composite polyolefine materials and preparation method thereof, to solve
The flame retardant property and electronic shield performance of common polyolefine material are not able to satisfy the problem of some aspects need.
The present invention is achieved by the following technical solutions:
A kind of High Performance Shielding composite polyolefine material, is made of the following components by weight:
80 parts -100 parts of polyolefin；
10 parts -20 parts of functionalization compounded mix；
0.1 part -0.5 part of antioxidant；
The functionalization compounded mix is that fullerene is carried out surface amino groups modification, carries out acidification to carbon fiber, most
A kind of functionalization compounded mix of inierpeneirating network structure is made afterwards.
The polyolefin is one of PP, PE, PS, PBT, PA6.
The functionalization compounded mix, specific preparation process is as follows:
(1) a certain amount of fullerene, acetone, deionized water are weighed, is put into reaction vessels, ultrasonic disperse 4-6h is obtained molten
Liquid A；
(2) a certain amount of solution A, hexamethylene diamine, stannous chloride are weighed, is put into reaction vessels, nitrogen protection is passed through,
60-80 DEG C of reaction 6-12h, obtains solution B；
(3) solution B filtered, washed, dry 3-5h, obtains modified fullerenes in 40-60 DEG C of vacuum drying oven；
(4) a certain amount of PPTA fiber, concentrated phosphoric acid, concentrated hydrochloric acid are weighed, concentrated phosphoric acid and concentrated hydrochloric acid is added in PPTA fiber
In mixed solution, ultrasonic disperse 3-5h is filtered, and is washed, dry, obtains modified ppta fiber；
(5) a certain amount of modified fullerenes, modified ppta fiber, SEBS-g-MAH, acetone are weighed, reaction vessels are put into
In, ultrasonic disperse 4-6h obtains solution C in 80-120 DEG C of reaction 16-20h；
(6) solution C filtered, washing, drying, pulverized, crossed 1000 meshes, obtain functionalization compounded mix.
Fullerene, acetone, deionized water quality ratio in step (1) are (60-80): (20-40): (100-160).
Solution A, hexamethylene diamine, stannous chloride mass ratio in step (2) are (80-100): (6-10): (3-5).
PPTA fiber, concentrated phosphoric acid, concentrated hydrochloric acid mass ratio in step (4) are (30-50): (30-50): (40-60).
The mass ratio of modified fullerenes, modified ppta fiber, SEBS-g-MAH, acetone in step (5) is (50-70):
(20-40): (1-3): (120-160).
A kind of preparation method of High performance polyolefin composite material, comprising the following steps:
(1) 80 parts -100 parts polyolefin, 10 parts of -20 parts of functionalization compounded mixs, 0.1 part of -0.5 part of antioxidant are weighed；
(2) by mixture extruding pelletization obtained in step (1) to get arrive composite polyolefine material.
The beneficial effects of the present invention are:
1, this technology carries out surface amino groups modification to fullerene, carries out acidification to carbon fiber, is eventually fabricated a kind of mutual
Wear the functionalization compounded mix of network structure.
2, composite polyolefine material made from this technology, excellent physical properties, flame retardant property and electromagnetic shielding performance
Very well, there is very big promotional value.
Specific embodiment
Carry out the technical solution that the present invention will be described in detail by the following examples, embodiment below is merely exemplary, only
It can be used to explanation and illustration technical solution of the present invention, and be not to be construed as the limitation to technical solution of the present invention.
Raw material used in embodiments herein is as follows:
PBT (model 2002U), Polyplastics；PP (model Z30S), Maoming Petrochemical；PE (model 5070), Panjin ethylene；
PA6 (model C M1017), toray；PS (model 350), state of Taiwan Province are tall；Fullerene, Puyang Yongxin fullerene science and technology have
Limit company；Acetone, Jinan fly Chemical Co., Ltd.；Deionized water, Hefei Jing Chun company；Hexamethylene diamine, Jinan century sensibleization
Work Co., Ltd；Stannous chloride, Zhengzhou Zhi Yi chemical products Co., Ltd；PPTA fiber (model Kevlar), Dupont；It is dense
Phosphoric acid, Tianjin is the same as prosperous chemical industry；Concentrated hydrochloric acid, Nanjing join specialization work；SEBS-g-MAH, Suzhou Asia match plasticizing Co., Ltd；Antioxidant
(model Irganox168, Irganox1010, Irganox1330), Switzerland's Ciba.
Test equipment used herein is as follows:
ZSK30 type double screw extruder, German W&P company；JL-1000 type tensile testing machine, the wide just experiment instrument in Guangzhou
The production of device company；HTL900-T-5B type injection (mo(u)lding) machine, the production of Hai Tai plastics machinery Co., Ltd；XCJ-500 type shock-testing
Machine, the production of Chengde testing machine factory；QT-1196 type tester for elongation, Dongguan City Gao Tai detecting instrument Co., Ltd；QD-GJS-
B12K type high-speed mixer, Beijing perseverance Order instrument and meter Co., Ltd；101A-1 type digital display Electric heat oven, the holy glad science in Shanghai
Instrument Ltd..
The application provides a kind of High Performance Shielding composite polyolefine material, is made of the following components by weight:
80 parts -100 parts of polyolefin；
10 parts -20 parts of functionalization compounded mix；
0.1 part -0.5 part of antioxidant；
The functionalization compounded mix is that fullerene is carried out surface amino groups modification, carries out acidification to carbon fiber, most
A kind of functionalization compounded mix of inierpeneirating network structure is made afterwards.
The polyolefin is one of PP, PE, PS, PBT, PA6.
The functionalization compounded mix, specific preparation process is as follows:
(1) a certain amount of fullerene, acetone, deionized water are weighed, is put into reaction vessels, ultrasonic disperse 4-6h is obtained molten
Liquid A；Fullerene, acetone, deionized water quality ratio are (60-80): (20-40): (100-160).
(2) a certain amount of solution A, hexamethylene diamine, stannous chloride are weighed, is put into reaction vessels, nitrogen protection is passed through,
60-80 DEG C of reaction 6-12h, obtains solution B；Solution A, hexamethylene diamine, stannous chloride mass ratio are (80-100): (6-10): (3-5).
(3) solution B filtered, washed, dry 3-5h, obtains modified fullerenes in 40-60 DEG C of vacuum drying oven.
(4) a certain amount of PPTA fiber, concentrated phosphoric acid, concentrated hydrochloric acid are weighed, concentrated phosphoric acid and concentrated hydrochloric acid is added in PPTA fiber
In mixed solution, ultrasonic disperse 3-5h is filtered, and is washed, dry, obtains modified ppta fiber；PPTA fiber, concentrated phosphoric acid, dense salt
Sour mass ratio is (30-50): (30-50): (40-60).
(5) a certain amount of modified fullerenes, modified ppta fiber, SEBS-g-MAH, acetone are weighed, reaction vessels are put into
In, ultrasonic disperse 4-6h obtains solution C in 80-120 DEG C of reaction 16-20h；Modified fullerenes, modified ppta fiber, SEBS-g-
MAH, acetone mass ratio be (50-70): (20-40): (1-3): (120-160).
(6) solution C filtered, washing, drying, pulverized, crossed 1000 meshes, obtain functionalization compounded mix.
A kind of preparation method of High performance polyolefin composite material, comprising the following steps:
(1) 80 parts -100 parts polyolefin, 10 parts of -20 parts of functionalization compounded mixs, 0.1 part of -0.5 part of antioxidant are weighed；
(2) by mixture extruding pelletization obtained in step (1) to get arrive composite polyolefine material.
Preparation example 1
(1) 600g fullerene, 200g acetone, 1.0kg deionized water are weighed, is put into reaction vessels, ultrasonic disperse 4h is obtained
Solution A.
(2) 800g solution A, 60g hexamethylene diamine, 30g stannous chloride are weighed, is put into reaction vessels, is passed through nitrogen protection,
60 DEG C of reaction 6h, obtain solution B.
(3) solution B filtered, washed, dry 3h, obtains modified fullerenes in 40 DEG C of vacuum drying oven.
(4) 300gPPTA fiber, 300g concentrated phosphoric acid, 400g concentrated hydrochloric acid are weighed, concentrated phosphoric acid and dense salt is added in PPTA fiber
In the mixed solution of acid, ultrasonic disperse 3h is filtered, and is washed, dry, obtains modified ppta fiber.
(5) 500g modified fullerenes, 200g modified ppta fiber, 10gSEBS-g-MAH, 1.2kg acetone are weighed, are put into anti-
It answers in vessel, ultrasonic disperse 4h, in 80 DEG C of reaction 16h, obtains solution C.
(6) solution C filtered, washing, drying, pulverized, crossed 1000 meshes, obtain functionalization compounded mix P1.
Application examples 1
(1) 80 parts of PP, 10 parts of functionalization compounded mix P1,0.1 part of Irganox1010 are weighed；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PP composite material X1.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 210 DEG C of area's temperature, two 230 DEG C of area's temperature,
Three 230 DEG C of area's temperature, four 230 DEG C of area's temperature, five 230 DEG C of area's temperature, six 230 DEG C of area's temperature, 230 DEG C of head temperature, screw rod turns
Fast 280r/min.
Comparative example 1
(1) 80 parts of PP, 0.1 part of Irganox1010 are weighed；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PP composite material D1.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 210 DEG C of area's temperature, two 230 DEG C of area's temperature,
Three 230 DEG C of area's temperature, four 230 DEG C of area's temperature, five 230 DEG C of area's temperature, six 230 DEG C of area's temperature, 230 DEG C of head temperature, screw rod turns
Fast 280r/min.
The anti-microbial property data of PP composite material prepared by above application examples 1 and comparative example 1 are as shown in the table:
As can be seen from the above table, physical property of the X1 than D1, flame retardant property and electromagnetic shielding performance will be good.
Preparation example 2
(1) 800g fullerene, 400g acetone, 1.6kg deionized water are weighed, is put into reaction vessels, ultrasonic disperse 6h is obtained
Solution A.
(2) 1.0kg solution A, 100g hexamethylene diamine, 50g stannous chloride are weighed, is put into reaction vessels, is passed through nitrogen protection,
In 80 DEG C of reaction 12h, solution B is obtained.
(3) solution B filtered, washed, dry 5h, obtains modified fullerenes in 60 DEG C of vacuum drying oven.
(4) 500gPPTA fiber, 500g concentrated phosphoric acid, 600g concentrated hydrochloric acid are weighed, concentrated phosphoric acid and dense salt is added in PPTA fiber
In the mixed solution of acid, ultrasonic disperse 5h is filtered, and is washed, dry, obtains modified ppta fiber.
(5) 700g modified fullerenes, 400g modified ppta fiber, 30gSEBS-g-MAH, 1.6kg acetone are weighed, are put into anti-
It answers in vessel, ultrasonic disperse 6h, in 120 DEG C of reaction 20h, obtains solution C.
(6) solution C filtered, washing, drying, pulverized, crossed 1000 meshes, obtain functionalization compounded mix P2.
Application examples 2
(1) 100 parts of PS, 20 parts of functionalization compounded mix P2,0.1 part of Irganox1010,0.2 part are weighed
Irganox168,0.1 part of Irganox1330；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PS composite material X2.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 210 DEG C of area's temperature, two 240 DEG C of area's temperature,
Three 240 DEG C of area's temperature, four 240 DEG C of area's temperature, five 240 DEG C of area's temperature, six 240 DEG C of area's temperature, 240 DEG C of head temperature, screw rod turns
Fast 260r/min.
Comparative example 2
(1) 100 parts of PS, 0.1 part of Irganox1010,0.2 part of Irganox168,0.2 part of Irganox1330 are weighed；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PS composite material D2.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 210 DEG C of area's temperature, two 240 DEG C of area's temperature,
Three 240 DEG C of area's temperature, four 240 DEG C of area's temperature, five 240 DEG C of area's temperature, six 240 DEG C of area's temperature, 240 DEG C of head temperature, screw rod turns
Fast 260r/min.
The anti-microbial property data of PS composite material prepared by above application examples 2 and comparative example 2 are as shown in the table:
As can be seen from the above table, physical property of the X2 than D2, flame retardant property and electromagnetic shielding performance will be good.
Preparation example 3
(1) 700g fullerene, 300g acetone, 1.3kg deionized water are weighed, is put into reaction vessels, ultrasonic disperse 5h is obtained
Solution A.
(2) 900g solution A, 80g hexamethylene diamine, 40g stannous chloride are weighed, is put into reaction vessels, is passed through nitrogen protection,
70 DEG C of reaction 9h, obtain solution B.
(3) solution B filtered, washed, dry 4h, obtains modified fullerenes in 50 DEG C of vacuum drying oven.
(4) 400gPPTA fiber, 400g concentrated phosphoric acid, 500g concentrated hydrochloric acid are weighed, concentrated phosphoric acid and dense salt is added in PPTA fiber
In the mixed solution of acid, ultrasonic disperse 4h is filtered, and is washed, dry, obtains modified ppta fiber.
(5) 600g modified fullerenes, 300g modified ppta fiber, 20gSEBS-g-MAH, 1.4kg acetone are weighed, are put into anti-
It answers in vessel, ultrasonic disperse 5h, in 100 DEG C of reaction 18h, obtains solution C.
(6) solution C filtered, washing, drying, pulverized, crossed 1000 meshes, obtain functionalization compounded mix P3.
Application examples 3
(1) 90 parts of PE, 15 parts of functionalization compounded mix P3,0.1 part of Irganox1010,0.2 part are weighed
Irganox168；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PE composite material X3.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 180 DEG C of area's temperature, two 200 DEG C of area's temperature,
Three 200 DEG C of area's temperature, four 200 DEG C of area's temperature, five 200 DEG C of area's temperature, six 200 DEG C of area's temperature, 200 DEG C of head temperature, screw rod turns
Fast 230r/min.
Comparative example 3
(1) 90 parts of PE, 0.1 part of Irganox1010,0.2 part of Irganox168 are weighed；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PE composite material D3.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 180 DEG C of area's temperature, two 200 DEG C of area's temperature,
Three 200 DEG C of area's temperature, four 200 DEG C of area's temperature, five 200 DEG C of area's temperature, six 200 DEG C of area's temperature, 200 DEG C of head temperature, screw rod turns
Fast 230r/min.
The anti-microbial property data of PE composite material prepared by above application examples 3 and comparative example 3 are as shown in the table:
As can be seen from the above table, physical property of the X3 than D3, flame retardant property and electromagnetic shielding performance will be good.
Preparation example 4
(1) 750g fullerene, 350g acetone, 1.4kg deionized water are weighed, is put into reaction vessels, ultrasonic disperse 4h is obtained
Solution A.
(2) 950g solution A, 90g hexamethylene diamine, 40g stannous chloride are weighed, is put into reaction vessels, is passed through nitrogen protection,
55 DEG C of reaction 6h, obtain solution B.
(3) solution B filtered, washed, dry 3h, obtains modified fullerenes in 50 DEG C of vacuum drying oven.
(4) 450gPPTA fiber, 350g concentrated phosphoric acid, 400g concentrated hydrochloric acid are weighed, concentrated phosphoric acid and dense salt is added in PPTA fiber
In the mixed solution of acid, ultrasonic disperse 3h is filtered, and is washed, dry, obtains modified ppta fiber.
(5) 650g modified fullerenes, 300g modified ppta fiber, 15gSEBS-g-MAH, 1.3kg acetone are weighed, are put into anti-
It answers in vessel, ultrasonic disperse 4h, in 80 DEG C of reaction 16h, obtains solution C.
(6) solution C filtered, washing, drying, pulverized, crossed 1000 meshes, obtain functionalization compounded mix P4.
Application examples 4
(1) 95 parts of PA6,10 parts of functionalization compounded mix P4,0.1 part of Irganox1010,0.2 part are weighed
Irganox168；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PA6 composite material X4.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 240 DEG C of area's temperature, two 260 DEG C of area's temperature,
Three 260 DEG C of area's temperature, four 260 DEG C of area's temperature, five 260 DEG C of area's temperature, six 260 DEG C of area's temperature, 260 DEG C of head temperature, screw rod turns
Fast 240r/min.
Comparative example 4
(1) 95 parts of PA6,0.1 part of Irganox1010,0.2 part of Irganox168 are weighed；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PA6 composite material D4.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 240 DEG C of area's temperature, two 260 DEG C of area's temperature,
Three 260 DEG C of area's temperature, four 260 DEG C of area's temperature, five 260 DEG C of area's temperature, six 260 DEG C of area's temperature, 260 DEG C of head temperature, screw rod turns
Fast 240r/min.
The anti-microbial property data of PA6 composite material prepared by above application examples 4 and comparative example 4 are as shown in the table:
As can be seen from the above table, physical property of the X4 than D4, flame retardant property and electromagnetic shielding performance will be good.
Preparation example 5
(1) 680g fullerene, 360g acetone, 1.5kg deionized water are weighed, is put into reaction vessels, ultrasonic disperse 6h is obtained
Solution A.
(2) 850g solution A, 100g hexamethylene diamine, 45g stannous chloride are weighed, is put into reaction vessels, is passed through nitrogen protection,
In 80 DEG C of reaction 12h, solution B is obtained.
(3) solution B filtered, washed, dry 5h, obtains modified fullerenes in 60 DEG C of vacuum drying oven.
(4) 380gPPTA fiber, 480g concentrated phosphoric acid, 550g concentrated hydrochloric acid are weighed, concentrated phosphoric acid and dense salt is added in PPTA fiber
In the mixed solution of acid, ultrasonic disperse 5h is filtered, and is washed, dry, obtains modified ppta fiber.
(5) 560g modified fullerenes, 380g modified ppta fiber, 30gSEBS-g-MAH, 1.6kg acetone are weighed, are put into anti-
It answers in vessel, ultrasonic disperse 6h, in 120 DEG C of reaction 20h, obtains solution C.
(6) solution C filtered, washing, drying, pulverized, crossed 1000 meshes, obtain functionalization compounded mix P5.
Application examples 5
(1) 85 parts of PBT, 10 parts of functionalization compounded mix P4,0.1 part of Irganox1010,0.2 part are weighed
Irganox168；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite X5.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 240 DEG C of area's temperature, two 260 DEG C of area's temperature,
Three 260 DEG C of area's temperature, four 260 DEG C of area's temperature, five 260 DEG C of area's temperature, six 260 DEG C of area's temperature, 260 DEG C of head temperature, screw rod turns
Fast 240r/min.
Comparative example 5
(1) 85 parts of PBT, 0.1 part of Irganox1010,0.2 part of Irganox168 are weighed；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite D5.
Wherein each area's temperature of double screw extruder and screw speed are respectively；One 240 DEG C of area's temperature, two 260 DEG C of area's temperature,
Three 260 DEG C of area's temperature, four 260 DEG C of area's temperature, five 260 DEG C of area's temperature, six 260 DEG C of area's temperature, 260 DEG C of head temperature, screw rod turns
Fast 240r/min.
The anti-microbial property data of PBT composite prepared by above application examples 5 and comparative example 5 are as shown in the table:
As can be seen from the above table, physical property of the X5 than D5, flame retardant property and electromagnetic shielding performance will be good.
The technical program describes a kind of High Performance Shielding composite polyolefine material and preparation method thereof, and obtained
Polyolefine material physical property, flame retardant property and electromagnetic shielding performance are all greatly improved compared with comparative example, this is greatly expanded
The application field of composite polyolefine material, has very important significance.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And deformation, the scope of the present invention are extremely equally limited by appended claims.
Claims (8)
1. a kind of High Performance Shielding composite polyolefine material, which is characterized in that be made of the following components by weight:
80 parts -100 parts of polyolefin；
10 parts -20 parts of functionalization compounded mix；
0.1 part -0.5 part of antioxidant；
The functionalization compounded mix is that fullerene is carried out surface amino groups modification, carries out acidification to carbon fiber, finally makes
At a kind of functionalization compounded mix of inierpeneirating network structure.
2. High Performance Shielding composite polyolefine material according to claim 1, which is characterized in that the polyolefin is
One of PP, PE, PS, PBT, PA6.
3. High Performance Shielding composite polyolefine material according to claim 1, which is characterized in that the functionalization is multiple
Filler is closed, specific preparation process is as follows:
(1) a certain amount of fullerene, acetone, deionized water are weighed, is put into reaction vessels, ultrasonic disperse 4-6h obtains solution A；
(2) a certain amount of solution A, hexamethylene diamine, stannous chloride are weighed, is put into reaction vessels, nitrogen protection is passed through, in 60-80
DEG C reaction 6-12h, obtain solution B；
(3) solution B filtered, washed, dry 3-5h, obtains modified fullerenes in 40-60 DEG C of vacuum drying oven；
(4) a certain amount of PPTA fiber, concentrated phosphoric acid, concentrated hydrochloric acid are weighed, PPTA fiber is added to the mixing of concentrated phosphoric acid and concentrated hydrochloric acid
In solution, ultrasonic disperse 3-5h is filtered, and is washed, dry, obtains modified ppta fiber；
(5) a certain amount of modified fullerenes, modified ppta fiber, SEBS-g-MAH, acetone are weighed, is put into reaction vessels, is surpassed
Sound disperses 4-6h and obtains solution C in 80-120 DEG C of reaction 16-20h；
(6) solution C filtered, washing, drying, pulverized, crossed 1000 meshes, obtain functionalization compounded mix.
4. High Performance Shielding composite polyolefine material according to claim 3, which is characterized in that in step (1)
Fullerene, acetone, deionized water quality ratio are (60-80): (20-40): (100-160).
5. High Performance Shielding composite polyolefine material according to claim 3, which is characterized in that in step (2)
Solution A, hexamethylene diamine, stannous chloride mass ratio are (80-100): (6-10): (3-5).
6. High Performance Shielding composite polyolefine material according to claim 3, which is characterized in that in step (4)
PPTA fiber, concentrated phosphoric acid, concentrated hydrochloric acid mass ratio are (30-50): (30-50): (40-60).
7. High Performance Shielding composite polyolefine material according to claim 3, which is characterized in that in step (5)
Modified fullerenes, modified ppta fiber, SEBS-g-MAH, acetone mass ratio be (50-70): (20-40): (1-3): (120-
160)。
8. a kind of preparation method of High performance polyolefin composite material, which comprises the following steps:
(1) 80 parts -100 parts polyolefin, 10 parts of -20 parts of functionalization compounded mixs, 0.1 part of -0.5 part of antioxidant are weighed；
(2) by mixture extruding pelletization obtained in step (1) to get arrive composite polyolefine material.
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| CN102634777A (en) * | 2012-02-23 | 2012-08-15 | 北京航空航天大学 | Electromagnetic shielding material for electroless cobalt plating of modified carbon nanotubes and preparation method of electromagnetic shielding material |
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