CN104327497A - Polyamide modified plastic and preparation method thereof - Google Patents
Polyamide modified plastic and preparation method thereof Download PDFInfo
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- CN104327497A CN104327497A CN201410550983.6A CN201410550983A CN104327497A CN 104327497 A CN104327497 A CN 104327497A CN 201410550983 A CN201410550983 A CN 201410550983A CN 104327497 A CN104327497 A CN 104327497A
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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
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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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Abstract
The invention discloses a polyamide modified plastic producing method, and the polyamide modified plastic comprises the following components by mass: 80-110 parts of polyamide, 60-90 parts of expansible graphite, 60-90 parts of Al2O3, 50-80 parts of glass beads, 25-40 parts of graphite fiber, 7-10 parts of Zn, 50-80 parts of SiO2, 2-5 parts of ethylene/vinyl acetate copolymer, 0.5-0.6 part of stearamide, 0.5-0.6 parts of epoxy resin, 0.4-0.5 parts of mica powder, 0.4-0.5 parts of barium sulfate and 0.2-0.3 parts of brominated polystyrene ethane. The polyamide modified plastic prepared by the invention solves the problem that the poor impact resistance, small elongation, hard and brittle faults of existing engineering plastics, has excellent performance, can be applied to practical application, especially has high heat distortion temperature, high tensile strength, high flexural strength and flexural modulus, and good impact strength.
Description
Technical field
The present invention relates to plastic applications, particularly relate to a kind of polyamide modified plastics and preparation method thereof.
Background technology
Engineering plastics refer to that a class as structured material, can bear mechanical stress in wide temperature range, and the high performance macromolecular material used in comparatively harsh chemical physics environment, it has stronger environment endurance and adaptability relative to popular plastics.
Engineering plastics are lighter than metallic substance, easy-formation is processed, shaping less energy consumption, some metal can be replaced to do structured material use, become the material that in world today's plastics industry, rate of growth is the fastest, because chemical constitution is different, therefore resistance to chemical reagents, rubbing characteristics, electricity, mechanical property etc. also have some difference.And because plasticity is different, be applicable to any molding mode person, also having can only with certain molding mode processor, and that causes in application is limited, and engineering plastics have shock-resistance is poor, unit elongation is little, hard, crisp character, therefore the research of engineering plastics is very urgent.
Summary of the invention
For the deficiency that prior art exists, object of the present invention just there are provided a kind of polyamide modified plastics and preparation method thereof, solves existing polyamide modified plastics poor impact resistance, shortcoming that unit elongation is little, hard, crisp.
To achieve these goals, the technical solution used in the present invention is such:
A kind of polyamide modified plastics, by polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane composition, the mass parts between described each component is polymeric amide 80 ~ 110 parts, expansible black lead 60 ~ 90 parts, Al
2o
360 ~ 90 parts, glass microballon 50 ~ 80 parts, graphite fibre 25 ~ 40 parts, Zn 7 ~ 10 parts, SiO
250 ~ 80 parts, ethylene-vinyl acetate copolymer 2 ~ 5 parts, stearylamide 0.5 ~ 0.6 part, epoxy resin 0.5 ~ 0.6 part, mica powder 0.4 ~ 0.5 part, 0.4 ~ 0.5 part, barium sulfate and 0.2 ~ 0.3 part, brominated polyphenylene ethane.
A preparation method for polyamide modified plastics, comprises the following steps:
(1) to polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane carries out weighing;
(2) pour the component of step (1) in high-speed mixer mix and blend successively, then extruded by dual-screw-stem machine;
(3) material of step (2) is added to plastics processing mill roller top, dancer rools spacing makes the rapid bag roller of material, after material adds, constantly cuts with copper tool and rolls up roller material, make material even;
(4) after material plasticizing is in blocks, web width, to 0.5mm, is adjusted to 170 ~ 200mm by dancer rools spacing, then carries out thin-pass 4 ~ 5 times to material, gets final product tablet discharging;
(5) step (4) being gone out tablet is put on worktable, is cut into square while hot, by discharging direction interfolded in order to compacting;
(6) tablet of step (5) is put into platen-press and carry out hot pressing, when the template on platen-press and the temperature of tablet are down to below 30 DEG C, get final product the release demoulding and take out sheet material.
As a kind of preferred version, the time of described step (2) high speed mixing machine mixing is 5 ~ 10min, and rotating speed is 15000r/min.
As a kind of preferred version, temperature when dual-screw-stem machine is extruded in described step (2) is 150 ~ 300 DEG C.
As a kind of preferred version, the temperature of described step (3) central roll is 150 ~ 200 DEG C, and roller spacing is 0.5mm.
As a kind of preferred version, in described step (3), the refining time of moulding of plastics processing mill is 10 ~ 15min.
As a kind of preferred version, the preheating temperature of described step (6) middle plateform press is 150 DEG C, and hot pressing temperature is 160 DEG C.
As a kind of preferred version, the press time of described step (6) middle plateform press is 3 ~ 5h.
Compared with prior art, beneficial effect of the present invention:
1. density is little, and specific tenacity is high, and shock resistance, anti-fatigue performance are excellent;
2. improve oilness, add color and luster, gloss, anti-electrostatic;
3. good stability, erosion resistance, extends the life-span;
4. thermotolerance is high, reduces production cost, economizes on resources and the energy.
Embodiment
Below with reference to specific embodiment, technical scheme provided by the invention is described in detail, following embodiment should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.
Embodiment 1:
A kind of polyamide modified plastics, by polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane composition, the mass parts between described each component is polymeric amide 80 parts, expansible black lead 60 parts, Al
2o
360 parts, glass microballon part, graphite fibre 25 parts, Zn 7 parts, SiO
250 parts, ethylene-vinyl acetate copolymer 2 parts, stearylamide 0.5 part, epoxy resin 0.5 part, mica powder 0.4 part, 0.4 part, barium sulfate and 0.2 part, brominated polyphenylene ethane.
A preparation method for polyamide modified plastics, comprises the following steps:
(1) to polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane carries out weighing;
(2) pour the component of step (1) in high-speed mixer mix and blend successively, then extruded by dual-screw-stem machine; The time of described high-speed mixer mixing is 5min, and rotating speed is 15000r/min, and temperature when dual-screw-stem machine is extruded is 150 DEG C;
(3) material of step (2) is added to plastics processing mill roller top, dancer rools spacing makes the rapid bag roller of material, after material adds, constantly cuts with copper tool and rolls up roller material, make material even; The temperature of described roller is 150 DEG C, and roller spacing is 0.5mm; The refining time of moulding of plastics processing mill is 10min;
(4) after material plasticizing is in blocks, web width, to 0.5mm, is adjusted to 170mm by dancer rools spacing, then carries out thin-pass 4 times to material, gets final product tablet discharging;
(5) step (4) being gone out tablet is put on worktable, is cut into square while hot, by discharging direction interfolded in order to compacting;
(6) tablet of step (5) is put into platen-press and carry out hot pressing, when the template on platen-press and the temperature of tablet are down to below 30 DEG C, get final product the release demoulding and take out sheet material; The preheating temperature of described platen-press is 150 DEG C, and hot pressing temperature is 160 DEG C, and the time of compacting is 3h.
Polyamide modified plastics embodiment 1 prepared carry out performance test, and test result is as table 1.
Embodiment 2:
A kind of polyamide modified plastics, by polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane composition, the mass parts between described each component is polymeric amide 90 parts, expansible black lead 70 parts, Al
2o
370 parts, glass microballon 60 parts, graphite fibre 30 parts, Zn 8 parts, SiO
260 parts, ethylene-vinyl acetate copolymer 3 parts, stearylamide 0.5 part, epoxy resin 0.5 part, mica powder 0.4 part, 0.4 part, barium sulfate and 0.2 part, brominated polyphenylene ethane.
A preparation method for polyamide modified plastics, comprises the following steps:
(1) to polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane carries out weighing;
(2) pour the component of step (1) in high-speed mixer mix and blend successively, then extruded by dual-screw-stem machine; The time of described high-speed mixer mixing is 5min, and rotating speed is 15000r/min, and temperature when dual-screw-stem machine is extruded is 200 DEG C;
(3) material of step (2) is added to plastics processing mill roller top, dancer rools spacing makes the rapid bag roller of material, after material adds, constantly cuts with copper tool and rolls up roller material, make material even; The temperature of described roller is 150 DEG C, and roller spacing is 0.5mm; The refining time of moulding of plastics processing mill is 10min;
(4) after material plasticizing is in blocks, web width, to 0.5mm, is adjusted to 180mm by dancer rools spacing, then carries out thin-pass 4 times to material, gets final product tablet discharging;
(5) step (4) being gone out tablet is put on worktable, is cut into square while hot, by discharging direction interfolded in order to compacting;
(6) tablet of step (5) is put into platen-press and carry out hot pressing, when the template on platen-press and the temperature of tablet are down to below 30 DEG C, get final product the release demoulding and take out sheet material; The preheating temperature of described platen-press is 150 DEG C, and hot pressing temperature is 160 DEG C, and the time of compacting is 4h.
Polyamide modified plastics embodiment 2 prepared carry out performance test, and test result is as table 1.
Embodiment 3:
A kind of polyamide modified plastics, by polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane composition, the mass parts between described each component is polymeric amide 100 parts, expansible black lead 80 parts, Al
2o
380 parts, glass microballon 70 parts, graphite fibre 35 parts, Zn 9 parts, SiO
270 parts, ethylene-vinyl acetate copolymer 4 parts, stearylamide 0.6 part, epoxy resin 0.6 part, mica powder 0.5 part, 0.5 part, barium sulfate and 0.3 part, brominated polyphenylene ethane.
A preparation method for polyamide modified plastics, comprises the following steps:
(1) to polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane carries out weighing;
(2) pour the component of step (1) in high-speed mixer mix and blend successively, then extruded by dual-screw-stem machine; The time of described high-speed mixer mixing is 10min, and rotating speed is 15000r/min, and temperature when dual-screw-stem machine is extruded is 250 DEG C;
(3) material of step (2) is added to plastics processing mill roller top, dancer rools spacing makes the rapid bag roller of material, after material adds, constantly cuts with copper tool and rolls up roller material, make material even; The temperature of described roller is 200 DEG C, and roller spacing is 0.5mm; The refining time of moulding of plastics processing mill is 15min;
(4) after material plasticizing is in blocks, web width, to 0.5mm, is adjusted to 190mm by dancer rools spacing, then carries out thin-pass 5 times to material, gets final product tablet discharging;
(5) step (4) being gone out tablet is put on worktable, is cut into square while hot, by discharging direction interfolded in order to compacting;
(6) tablet of step (5) is put into platen-press and carry out hot pressing, when the template on platen-press and the temperature of tablet are down to below 30 DEG C, get final product the release demoulding and take out sheet material; The preheating temperature of described platen-press is 150 DEG C, and hot pressing temperature is 160 DEG C, and the time of compacting is 4h.
Polyamide modified plastics embodiment 3 prepared carry out performance test, and test result is as table 1.
Embodiment 4:
A kind of polyamide modified plastics, by polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane composition, the mass parts between described each component is polymeric amide 110 parts, expansible black lead 90 parts, Al
2o
390 parts, glass microballon 80 parts, graphite fibre 40 parts, Zn 10 parts, SiO
280 parts, ethylene-vinyl acetate copolymer 5 parts, stearylamide 0.6 part, epoxy resin 0.6 part, mica powder 0.5 part, 0.5 part, barium sulfate and 0.3 part, brominated polyphenylene ethane.
A preparation method for polyamide modified plastics, comprises the following steps:
(1) to polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane carries out weighing;
(2) pour the component of step (1) in high-speed mixer mix and blend successively, then extruded by dual-screw-stem machine; The time of described high-speed mixer mixing is 10min, and rotating speed is 15000r/min, and temperature when dual-screw-stem machine is extruded is 300 DEG C;
(3) material of step (2) is added to plastics processing mill roller top, dancer rools spacing makes the rapid bag roller of material, after material adds, constantly cuts with copper tool and rolls up roller material, make material even; The temperature of described roller is 200 DEG C, and roller spacing is 0.5mm; The refining time of moulding of plastics processing mill is 15min;
(4) after material plasticizing is in blocks, web width, to 0.5mm, is adjusted to 200mm by dancer rools spacing, then carries out thin-pass 5 times to material, gets final product tablet discharging;
(5) step (4) being gone out tablet is put on worktable, is cut into square while hot, by discharging direction interfolded in order to compacting;
(6) tablet of step (5) is put into platen-press and carry out hot pressing, when the template on platen-press and the temperature of tablet are down to below 30 DEG C, get final product the release demoulding and take out sheet material; The preheating temperature of described platen-press is 150 DEG C, and hot pressing temperature is 160 DEG C, and the time of compacting is 5h.
Polyamide modified plastics embodiment 4 prepared carry out performance test, and test result is as table 1.
Comparative example 1:
Buy the PA6 engineering plastics of the joyful chemical fibre in Wuxi, carry out performance test to it, test result is as table 1.
Table one:
The polyamide modified plastics performance prepared of the present invention is excellent as can be seen from the above table, and well can be applied to practical application, particularly its heat-drawn wire is high, and tensile strength is high, flexural strength and modulus in flexure high, impact strength is good.
Finally it should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and non-limiting technical scheme, those of ordinary skill in the art is to be understood that, those are modified to technical scheme of the present invention or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present invention.
Claims (8)
1. polyamide modified plastics, is characterized in that: described engineering materials is by polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane composition, the mass parts between described each component is polymeric amide 80 ~ 110 parts, expansible black lead 60 ~ 90 parts, Al
2o
360 ~ 90 parts, glass microballon 50 ~ 80 parts, graphite fibre 25 ~ 40 parts, Zn 7 ~ 10 parts, SiO
250 ~ 80 parts, ethylene-vinyl acetate copolymer 2 ~ 5 parts, stearylamide 0.5 ~ 0.6 part, epoxy resin 0.5 ~ 0.6 part, mica powder 0.4 ~ 0.5 part, 0.4 ~ 0.5 part, barium sulfate and 0.2 ~ 0.3 part, brominated polyphenylene ethane.
2. prepare a preparation method for polyamide modified plastics according to claim 1, it is characterized in that comprising the following steps:
(1) to polymeric amide, expansible black lead, Al
2o
3, glass microballon, graphite fibre, Zn, SiO
2, ethylene-vinyl acetate copolymer, stearylamide, epoxy resin, mica powder, barium sulfate and brominated polyphenylene ethane carries out weighing;
(2) pour the component of step (1) in high-speed mixer mix and blend successively, then extruded by dual-screw-stem machine;
(3) material of step (2) is added to plastics processing mill roller top, dancer rools spacing makes the rapid bag roller of material, after material adds, constantly cuts with copper tool and rolls up roller material, make material even;
(4) after material plasticizing is in blocks, web width, to 0.5mm, is adjusted to 170 ~ 200mm by dancer rools spacing, then carries out thin-pass 4 ~ 5 times to material, gets final product tablet discharging;
(5) step (4) being gone out tablet is put on worktable, is cut into square while hot, by discharging direction interfolded in order to compacting;
(6) tablet of step (5) is put into platen-press and carry out hot pressing, when the template on platen-press and the temperature of tablet are down to below 30 DEG C, get final product the release demoulding and take out sheet material.
3. the preparation method of a kind of polyamide modified plastics according to claim 2, is characterized in that: the time of described step (2) high speed mixing machine mixing is 5 ~ 10min, and rotating speed is 15000r/min.
4. the preparation method of a kind of polyamide modified plastics according to claim 2, is characterized in that: temperature when dual-screw-stem machine is extruded in described step (2) is 150 ~ 300 DEG C.
5. the preparation method of a kind of polyamide modified plastics according to claim 2, is characterized in that: the temperature of described step (3) central roll is 150 ~ 200 DEG C, and roller spacing is 0.5mm.
6. the preparation method of a kind of polyamide modified plastics according to claim 2, is characterized in that: in described step (3), the refining time of moulding of plastics processing mill is 10 ~ 15min.
7. the preparation method of a kind of polyamide modified plastics according to claim 2, is characterized in that: the preheating temperature of described step (6) middle plateform press is 150 DEG C, and hot pressing temperature is 160 DEG C.
8. the preparation method of a kind of polyamide modified plastics according to claim 2, is characterized in that: the press time of described step (6) middle plateform press is 3 ~ 5h.
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| CN201410550983.6A CN104327497A (en) | 2014-10-17 | 2014-10-17 | Polyamide modified plastic and preparation method thereof |
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| CN201410550983.6A CN104327497A (en) | 2014-10-17 | 2014-10-17 | Polyamide modified plastic and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604372A (en) * | 2012-02-17 | 2012-07-25 | 南京聚隆科技股份有限公司 | Polyamide composite material with flame retardance and heat conduction and preparation method thereof |
| CN102875956A (en) * | 2012-09-20 | 2013-01-16 | 吴江市天源塑胶有限公司 | Engineering plastic with high wearing resistance |
| CN103146189A (en) * | 2013-02-26 | 2013-06-12 | 上海凯赛生物技术研发中心有限公司 | Nylon modified plastic |
| CN103589144A (en) * | 2013-10-29 | 2014-02-19 | 安徽安缆模具有限公司 | Lightproof infrared-ray transmitting nylon PA12 material for automobile connectors |
-
2014
- 2014-10-17 CN CN201410550983.6A patent/CN104327497A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604372A (en) * | 2012-02-17 | 2012-07-25 | 南京聚隆科技股份有限公司 | Polyamide composite material with flame retardance and heat conduction and preparation method thereof |
| CN102875956A (en) * | 2012-09-20 | 2013-01-16 | 吴江市天源塑胶有限公司 | Engineering plastic with high wearing resistance |
| CN103146189A (en) * | 2013-02-26 | 2013-06-12 | 上海凯赛生物技术研发中心有限公司 | Nylon modified plastic |
| CN103589144A (en) * | 2013-10-29 | 2014-02-19 | 安徽安缆模具有限公司 | Lightproof infrared-ray transmitting nylon PA12 material for automobile connectors |
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