CN103333409A - Reinforced and toughened anti-ageing polypropylene composite material and preparation method thereof - Google Patents
Reinforced and toughened anti-ageing polypropylene composite material and preparation method thereof Download PDFInfo
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- CN103333409A CN103333409A CN2013102777195A CN201310277719A CN103333409A CN 103333409 A CN103333409 A CN 103333409A CN 2013102777195 A CN2013102777195 A CN 2013102777195A CN 201310277719 A CN201310277719 A CN 201310277719A CN 103333409 A CN103333409 A CN 103333409A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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Abstract
The invention belongs to the technical field of polypropylene modification, and in particular relates to a reinforced and toughened anti-ageing polypropylene composite material and a preparation method thereof. The composite material is prepared from polypropylene, high-density polyethylene, ternary ethylene propylene rubber, a reinforcing filler and an inorganic anti-aging agent. The preparation method comprises the following steps: treatment on the reinforcing fillers with a carbon silicon coupling agent, mixing, melt extrusion, cooling, drying and pelletizing, so as to obtain the reinforced and toughened anti-aging polypropylene composite material. The invention has advantages of reasonable formula, simple process and convenient operation; and the prepared polypropylene composite material has tensile strength retention rate increased by 4%-10% and impact strength retention rate increased by 10%-30% compared with pure polypropylene.
Description
Technical field
The invention belongs to the polypropylene modification technical field, be specifically related to a kind of enhancing toughening anti-aging polypropylene alkene matrix material and preparation method thereof.
Background technology
Polypropylene (PP) is one of resin of global output maximum, it is a kind of crystal polymer thing of compound with regular structure, have little, nontoxic, the easy processing of density, water absorbability is low, shock strength is high, resistance to chemical attack, electrical insulation capability reach the cost performance advantages of higher well, is widely used in fields such as building, automobile, packing, machinery.But there is a large amount of tertiary carbon atoms among the PP, dehydrogenation generates free radical and causes follow-up oxidative degradation easily under UV-irradiation, thereby polypropylene molecule is produced chain reaction to be destroyed, cause the polypropylene articles weather resisteant poor, under action of ultraviolet radiation performance deterioration very easily, mainly show as phenomenons such as variable color, efflorescence, check surface, gloss forfeiture and mechanical properties decrease, this has greatly limited its use in structured material and engineering plastics.But big, the poor stability of little, the transport property of organic uv absorbers molecular weight in traditional photostabilizer, be subject to the interference of other environmental factors; Quencher is generally all toxic, can not satisfy the requirement of preparation asepsis environment-protecting material; Hindered amine as light stabilizer has very strong alkalescence, influences its result of use, low alkalinisation treatment process complexity.And existing polypropylene composite material kind is a lot, but mostly make the people not satisfied in performance perameters such as intensity, toughness and resistance to deteriorations.
Summary of the invention
In order to overcome the prior art deficiency, the invention provides a kind of enhancing toughening anti-aging polypropylene alkene matrix material and preparation method thereof.The present invention fills a prescription rationally, and technology is simple, and is easy to operate, and the polypropylene composite material of preparing improves 4% ~ 10% than the virgin pp stretching strength retentivity, and the shock strength conservation rate improves 10% ~ 30%.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of enhancing toughening anti-aging polypropylene alkene matrix material, made by following mass parts raw material: 50 ~ 70 parts of polypropylene, 10 ~ 30 parts of high density polyethylene(HDPE)s, 10 ~ 30 parts of terpolymer EP rubbers, 20 ~ 40 parts of reinforcing fillers, 1 ~ 5 part of inorganic antiaging agent, described reinforcing filler is white carbon black and carbon black, and described inorganic antiaging agent is titanium dioxide and acetylene black.
Preferably, in the described reinforcing filler, the mass ratio of white carbon black and carbon black is 1:2, and white carbon black and the processing of carbon black process carbon silicone couplet.
Preferably, the method that white carbon black and carbon black are handled with the carbon silicone couplet is as follows: get white carbon black and carbon black by the quality proportioning, and get silane coupling agent according to 1% of both total masses, at 100 ~ 105 ℃, rotating speed is to rotate under 800 ~ 1000 rev/mins the condition to mix 20 ~ 30 minutes with above-mentioned three.
Preferably, described rotation mixes, and temperature is 103 ℃, and rotating speed is 900 rev/mins, and the time is 25 minutes.
Preferably, in the described inorganic antiaging agent, the mass parts of titanium dioxide is 0.5 ~ 2 part, and surplus is acetylene black, and described acetylene black is nano level acetylene black.
Preferably, total mass part of described polypropylene, high density polyethylene(HDPE) and terpolymer EP rubber is 100 parts, and the three is all the powder shape.
A kind of preparation method who strengthens toughening anti-aging polypropylene alkene matrix material, step is as follows:
The first step: get polypropylene, high density polyethylene(HDPE), terpolymer EP rubber, carbon black, white carbon black, nanometer acetylene black and titanium dioxide by described mass parts or proportioning, after carbon black and the processing of white carbon black process carbon silicone couplet, with all the other components under the condition of 300 ~ 450 rev/mins of rotating speeds, mixed 20 ~ 30 minutes.
Second step: get the first step products therefrom by the duplex forcing machine, extrude under molten state, cross water cooling then, air-dry, pelletizing namely gets described enhancing toughening anti-aging polypropylene alkene matrix material.
Preferably, described preparation method, in the first step, the carbon black that polypropylene, high density polyethylene(HDPE) and process carbon silicone couplet are handled and white carbon black are under the condition of 450 rev/mins of rotating speeds earlier, mixed 25 minutes, and extruded under molten state by the duplex forcing machine, and then mix with all the other raw materials, under 380 rev/mins condition, mixed 25 minutes.
Preferably, the temperature at each position of described duplex forcing machine is head: 190 ℃ ~ 195 ℃, 175 ℃ ~ 180 ℃ in a district, 180 ℃ ~ 190 ℃ in two districts, 190 ℃ ~ 195 ℃ in three districts, 185 ℃ ~ 200 ℃ in four districts, 200 ℃ ~ 210 ℃ in five districts; Wherein screw speed is 11.5 ~ 13 rev/mins.
Preferably, the temperature at each position of described duplex forcing machine is: 193 ℃ of heads, 178 ℃ in a district, 185 ℃ in two districts, 193 ℃ in three districts, 193 ℃ in four districts, 205 ℃ in five districts; Wherein screw speed is 12 rev/mins.
In the prescription provided by the invention, be raw material with polypropylene, high density polyethylene(HDPE) and terpolymer EP rubber, add white carbon black, carbon black and titanium dioxide, nanometer acetylene black and serve as reinforcing filler and inorganic antiaging agent, adopt the method for melt blending, make the good matrix material of resistance to deterioration.
The present invention compared with prior art has following advantage:
1) the present invention utilizes inorganic white carbon black, carbon black to serve as reinforcing filler, adopt terpolymer EP rubber as toughner, the polypropylene composite material that makes has excellent performance: behind artificial accelerated aging 28d, the purer PP stretching strength retentivity of polypropylene composite material improves 4% ~ 10%, and the shock strength conservation rate improves 10% ~ 30%.
2) adopt nanometer acetylene black as main antiaging agent among the present invention, titanium dioxide is as secondary antiaging agent, this prescription can give polypropylene composite material long-acting ageing resistance by ultraviolet light performance, saved cost, improve the use properties of product greatly, had good utilization benefit and economic benefit.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1
Get each raw material respectively by following mass parts:
0.5 part of 50 parts of polypropylene, 20 parts of high density polyethylene(HDPE)s, 30 parts of terpolymer EP rubbers, 14 parts of carbon blacks, 7 parts of white carbon blacks, 0.5 part of titanium dioxide and nanometer acetylene black, wherein polypropylene, high density polyethylene(HDPE) and terpolymer EP rubber are all the powder shape.
Get white carbon black and carbon black, and get silane coupling agent according to 1% of both total masses, at 100 ℃, rotating speed is to rotate under 800 rev/mins the condition to mix 20 minutes with above-mentioned three.
To handle white carbon black later and carbon black stock and all the other components then under the condition of 300 rev/mins of rotating speeds, mix 20 minutes.
The above-mentioned steps products therefrom by the duplex forcing machine, is extruded under molten state, crossed water cooling then, air-dry, pelletizing namely gets described enhancing toughening anti-aging polypropylene alkene matrix material.
The temperature at each position of duplex forcing machine is head: 190 ℃, 175 ℃ in a district, 180 ℃ in two districts, 190 ℃ in three districts, 185 ℃ in four districts, 200 ℃ in five districts; Wherein screw speed is 11.5 rev/mins.
The performance of the polypropylene composite material of preparing by this technical application scheme is as follows:
Tensile strength 25.5MPa; Socle girder notched Izod impact strength 12.46KJ/m
2Modulus in flexure 2130MPa;
Behind the artificial accelerated aging (one of ultraviolet ageing proofing box: UV-340-I adopts the described plastics xenon source of GB/T16422.2-1999 exposure test method, gets the way of carrying out 28 days artificial accelerated agings):
Tensile strength 21.5MPa, conservation rate are 84.3%;
Socle girder notched Izod impact strength 10.59KJ/m
2, conservation rate is 85.0%.
Embodiment 2
Get each raw material respectively by following mass parts or proportioning:
3 parts of 70 parts of polypropylene, 10 parts of high density polyethylene(HDPE)s, 20 parts of terpolymer EP rubbers, carbon black 26,13 parts of white carbon blacks, 2 parts of titanium dioxide and nanometer acetylene blacks, wherein polypropylene, high density polyethylene(HDPE) and terpolymer EP rubber are all the powder shape.
Get white carbon black and carbon black, and get silane coupling agent according to 1% of both total masses, at 105 ℃, rotating speed is to rotate under 1000 rev/mins the condition to mix 30 minutes with above-mentioned three.
To handle white carbon black later and carbon black stock and all the other components then under the condition of 450 rev/mins of rotating speeds, mix 30 minutes.
The above-mentioned steps products therefrom by the duplex forcing machine, is extruded under molten state, crossed water cooling then, air-dry, pelletizing namely gets described enhancing toughening anti-aging polypropylene alkene matrix material.
The temperature at each position of duplex forcing machine is head: 195 ℃, 180 ℃ in a district, 190 ℃ in two districts, 195 ℃ in three districts, 200 ℃ in four districts, 210 ℃ in five districts; Wherein screw speed is 13 rev/mins.
The performance of the polypropylene composite material of preparing by this technical application scheme is as follows:
Tensile strength 25.7MPa; Socle girder notched Izod impact strength 12.56KJ/m
2Modulus in flexure 2247MPa;
Behind the artificial accelerated aging (one of ultraviolet ageing proofing box: UV-340-I adopts the described plastics xenon source of GB/T16422.2-1999 exposure test method, gets the way of carrying out 28 days artificial accelerated agings):
Tensile strength 21.18MPa, conservation rate are 82.4%;
Socle girder notched Izod impact strength 10.51KJ/m
2, conservation rate is 83.7%.
Embodiment 3
Get each raw material respectively by following mass parts or proportioning:
2 parts of 60 parts of polypropylene, 20 parts of high density polyethylene(HDPE)s, 20 parts of terpolymer EP rubbers, 20 parts of carbon blacks, 10 parts of white carbon blacks, 1 part of titanium dioxide and nanometer acetylene blacks, wherein polypropylene, high density polyethylene(HDPE) and terpolymer EP rubber are all the powder shape.
Get white carbon black and carbon black, and get silane coupling agent according to 1% of both total masses, at 103 ℃, rotating speed is to rotate under 900 rev/mins the condition to mix 25 minutes with above-mentioned three.
To handle white carbon black later and carbon black stock and polypropylene, high density polyethylene(HDPE) then under the condition of 450 rev/mins of rotating speeds, mixed 25 minutes, and extruded under molten state by the duplex forcing machine, and then mix with all the other raw materials, under 380 rev/mins condition, mixed 25 minutes.
The above-mentioned steps products therefrom by the duplex forcing machine, is extruded under molten state, crossed water cooling then, air-dry, pelletizing namely gets described enhancing toughening anti-aging polypropylene alkene matrix material.
The temperature at each position of duplex forcing machine is: 193 ℃ of heads, 178 ℃ in a district, 185 ℃ in two districts, 193 ℃ in three districts, 193 ℃ in four districts, 205 ℃ in five districts; Wherein screw speed is 12 rev/mins.
The performance of the polypropylene composite material of preparing by this technical application scheme is as follows:
Tensile strength 25.6MPa; Socle girder notched Izod impact strength 12.51KJ/m
2Modulus in flexure 2210MPa;
Behind the artificial accelerated aging (one of ultraviolet ageing proofing box: UV-340-I adopts the described plastics xenon source of GB/T16422.2-1999 exposure test method, gets the way of carrying out 28 days artificial accelerated agings):
Tensile strength 21.8MPa, conservation rate are 85.1%;
Socle girder notched Izod impact strength 10.82KJ/m
2, conservation rate is 86.5%.
Claims (10)
1. one kind strengthens toughening anti-aging polypropylene alkene matrix material, it is characterized in that, made by following mass parts raw material: 50 ~ 70 parts of polypropylene, 10 ~ 30 parts of high density polyethylene(HDPE)s, 10 ~ 30 parts of terpolymer EP rubbers, 20 ~ 40 parts of reinforcing fillers, 1 ~ 5 part of inorganic antiaging agent, described reinforcing filler is white carbon black and carbon black, and described inorganic antiaging agent is titanium dioxide and acetylene black.
2. a kind of enhancing toughening anti-aging polypropylene alkene matrix material as claimed in claim 1, it is characterized in that: in the described reinforcing filler, the mass ratio of white carbon black and carbon black is 1:2, and white carbon black and carbon black are handled through the carbon silicone couplet.
3. a kind of enhancing toughening anti-aging polypropylene alkene matrix material as claimed in claim 2, it is characterized in that, the method that white carbon black and carbon black are handled with the carbon silicone couplet is as follows: get white carbon black and carbon black by the quality proportioning, and get silane coupling agent according to 1% of both total masses, at 100 ~ 105 ℃, rotating speed is to rotate under 800 ~ 1000 rev/mins the condition to mix 20 ~ 30 minutes with above-mentioned three.
4. a kind of enhancing toughening anti-aging polypropylene alkene matrix material as claimed in claim 3 is characterized in that: described rotation mixes, and temperature is 103 ℃, and rotating speed is 900 rev/mins, and the time is 25 minutes.
5. a kind of enhancing toughening anti-aging polypropylene alkene matrix material as claimed in claim 1, it is characterized in that: in the described inorganic antiaging agent, the mass parts of titanium dioxide is 0.5 ~ 2 part, and surplus is acetylene black, and described acetylene black is nano level acetylene black.
6. a kind of enhancing toughening anti-aging polypropylene alkene matrix material as claimed in claim 1, it is characterized in that: total mass part of described polypropylene, high density polyethylene(HDPE) and terpolymer EP rubber is 100 parts, and the three is all powdery.
7. as the described a kind of preparation method who strengthens toughening anti-aging polypropylene alkene matrix material of claim 1-6, it is characterized in that step is as follows:
The first step: get polypropylene, high density polyethylene(HDPE), terpolymer EP rubber, carbon black, white carbon black, nanometer acetylene black and titanium dioxide by described mass parts or proportioning, after carbon black and the processing of white carbon black process carbon silicone couplet, with all the other components under the condition of 300 ~ 450 rev/mins of rotating speeds, mixed 20 ~ 30 minutes;
Second step: get the first step products therefrom by the duplex forcing machine, extrude under molten state, cross water cooling then, air-dry, pelletizing namely gets described enhancing toughening anti-aging polypropylene alkene matrix material.
8. a kind of preparation method who strengthens toughening anti-aging polypropylene alkene matrix material as claimed in claim 7, it is characterized in that: in the first step, the carbon black that polypropylene, high density polyethylene(HDPE) and process carbon silicone couplet are handled and white carbon black are under the condition of 450 rev/mins of rotating speeds earlier, mixed 25 minutes, extrude under molten state by the duplex forcing machine, and then mix with all the other raw materials, under 380 rev/mins condition, mixed 25 minutes.
9. a kind of preparation method who strengthens toughening anti-aging polypropylene alkene matrix material as claimed in claim 7, it is characterized in that: the temperature at each position of described duplex forcing machine is head: 190 ℃ ~ 195 ℃, 175 ℃ ~ 180 ℃ in a district, 180 ℃ ~ 190 ℃ in two districts, 190 ℃ ~ 195 ℃ in three districts, 185 ℃ ~ 200 ℃ in four districts, 200 ℃ ~ 210 ℃ in five districts; Wherein screw speed is 11.5 ~ 13 rev/mins.
10. a kind of preparation method who strengthens toughening anti-aging polypropylene alkene matrix material as claimed in claim 9, it is characterized in that: the temperature at each position of described duplex forcing machine is: 193 ℃ of heads, 178 ℃ in a district, 185 ℃ in two districts, 193 ℃ in three districts, 193 ℃ in four districts, 205 ℃ in five districts; Wherein screw speed is 12 rev/mins.
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Cited By (9)
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| CN104098844A (en) * | 2014-08-04 | 2014-10-15 | 山东瀚氏汽车零部件有限公司 | Yellowing-resistant PP (Polypropylene)/HDPE (High Density Polyethylene) plastic for automotive interior part and preparation method |
| CN104830003A (en) * | 2015-05-25 | 2015-08-12 | 四川盛唐建设工程有限公司 | Polymer composite and gabion mesh, gabion or active protecting mesh produced by polymer composite |
| CN107337831A (en) * | 2017-06-13 | 2017-11-10 | 安徽绿环泵业有限公司 | A kind of polythene material modified technique of Insulation Shell of Magnet Pump production |
| CN110054843A (en) * | 2019-05-13 | 2019-07-26 | 徐州工程学院 | Nano-TiO2Modified epdm and preparation method thereof |
| CN110483899A (en) * | 2018-05-15 | 2019-11-22 | 湖北文理学院 | A kind of modified polypropylene and preparation method thereof |
| CN110577699A (en) * | 2018-06-07 | 2019-12-17 | 深圳科创新源新材料股份有限公司 | Polypropylene composite material and preparation method and application thereof |
| CN112007427A (en) * | 2020-08-19 | 2020-12-01 | 界首万昌新材料技术有限公司 | Preparation method of anti-aging polypropylene filter cloth material |
| CN113861556A (en) * | 2021-09-09 | 2021-12-31 | 南通学帆工程材料科技有限公司 | Preparation method of anti-aging high-strength geogrid |
| CN115926319A (en) * | 2022-12-27 | 2023-04-07 | 河北通涛管业集团股份有限公司 | Impact-resistant Krah pipe and processing technology thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112007427A (en) * | 2020-08-19 | 2020-12-01 | 界首万昌新材料技术有限公司 | Preparation method of anti-aging polypropylene filter cloth material |
| CN113861556A (en) * | 2021-09-09 | 2021-12-31 | 南通学帆工程材料科技有限公司 | Preparation method of anti-aging high-strength geogrid |
| CN115926319A (en) * | 2022-12-27 | 2023-04-07 | 河北通涛管业集团股份有限公司 | Impact-resistant Krah pipe and processing technology thereof |
| CN115926319B (en) * | 2022-12-27 | 2024-02-09 | 河北通涛管业集团股份有限公司 | Impact-resistant type Clar pipe and processing technology thereof |
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Effective date of registration: 20201228 Address after: 315300 No.2, 585 Branch Road, Zhouzhi Avenue, Zhouxiang Town, Cixi City, Ningbo City, Zhejiang Province Patentee after: NINGBO SUZHIHUA PLASTIC Co.,Ltd. Address before: 454000 No. 2001 Century Avenue, hi tech Zone, Henan, Jiaozuo Patentee before: HENAN POLYTECHNIC University |