CN102816372A - Special high impact weathering resistance vehicle rotational moulding plastic tool box material - Google Patents
Special high impact weathering resistance vehicle rotational moulding plastic tool box material Download PDFInfo
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- CN102816372A CN102816372A CN2012102898015A CN201210289801A CN102816372A CN 102816372 A CN102816372 A CN 102816372A CN 2012102898015 A CN2012102898015 A CN 2012102898015A CN 201210289801 A CN201210289801 A CN 201210289801A CN 102816372 A CN102816372 A CN 102816372A
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- density polyethylene
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- antioxidant
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Abstract
The present invention relates to a high impact weathering resistance vehicle rotational moulding plastic tool box material, which is characterized by comprising the following raw materials, by weight, 85-95 parts of linear low density polyethylene, 3-5 parts of high density polyethylene, 1-2 parts of POE polyolefin elastomer, 1-2 parts of an EVA rubber plastic foaming material, 0.1-0.2 part of calcium stearate, 0.2-0.3 part of an antioxidant 1010, 0.4 part of an antioxidant 168, and 0.2 part of an ultraviolet absorber. According to the material of the present invention, the used base materials are the linear low density polyethylene, the high density polyethylene, the POE and the EVA, and the four materials are complemented so as to improve impact strength; the antioxidants and the ultraviolet absorber are added, such that long-term environment aging resistance and illumination are good; the material is adapted to high temperature and low temperature working environments, and the long-term working temperature is -40 to 70 DEG C, such that the material is suitable for use environments in high temperature regions and cold regions. In addition, the preparation method is simple and easy to perform, and is applicable for mass production.
Description
Technical field
The present invention relates to a kind of high-impact weathering resistance automobile rotational moulding plastic tool casing proprietary material, be applied to the automobile plastic work box.
Background technology
What the automotive tools casing adopted at present is metallic substance, and metallic substance density is big, working (machining) efficiency is low, can not adapt to automobile lightweight and fuel-efficient requirement.Adopt the plastic tool case, will consider cost and complete processing.Polythene material is as general-purpose plastics, and is good and cheap, and moulding process is simple.And the problem of the resisting environmental stress and cracking that polythene material exists, this is ubiquitous problem; Single polythene material weathering resistance is poor, and shock resistance is poor; Need carry out modification to polythene material, solve the problem of long-term weatherability difference and poor impact resistance; Utilize the fusing point of linear polyethylene low, the good characteristics of molten state current downflow property adopt rotational molding technique to carry out body formed to the work box.Characteristics requirement according to the moulding of rotational moulding; To its modification is difficult especially; Be difficult to be controlled at the fusing point of different materials the same with poly fusing point, and the material that adds also will get well in molten state current downflow property, otherwise the defective of layering, weld mark and surface difference can occur.
Summary of the invention
The object of the present invention is to provide a kind of high-impact weathering resistance automobile rotational moulding plastic tool casing proprietary material, it has used base-material to be linear low density polyethylene, high density polyethylene(HDPE), POE and EVA, and four kinds of material complementations have improved its shock strength; Add oxidation inhibitor and UV resistant absorption agent, made the long-term aging property of its anti-environment and illumination property good, adapted to high cryogenic Working environment; The long term operation temperature is at-40～70 ℃; Be applicable to high temperature and severe cold area environment for use, and the preparation method is simple, is easy to produce in batches.
Technical scheme of the present invention is achieved in that high-impact weathering resistance automobile rotational moulding plastic tool casing proprietary material, it is characterized in that comprising by weight following raw material: linear low density polyethylene 85～95; High density polyethylene(HDPE) 3～5; POE polyolefin elastomer 1～2; EVA rubber plastic foam material 1～2; Calcium stearate 0.1～0.2; Antioxidant 1010 0.2～0.3; Oxidation inhibitor 168 0.4; UV light absorber UV531 0.2.
The preparation method is following: after the above-mentioned raw materials weighing is finished, put into mixer to linear low density polyethylene, high density polyethylene(HDPE), POE, EVA, calcium stearate, antioxidant 1010, oxidation inhibitor 168 and UV light absorber and carry out mixing in 15～20 minutes; After having mixed, mixed material through twin screw extruder extrude, granulation processes the good material of modification; Before the rotational moulding work box, it is subsequent use that the process shredder grinds to form 30～40 purpose powder.
Positively effect of the present invention be high-impact, weathering resistance strong, adapt to high temperature and low temperature environment, the preparation method is simple; Anti-long-term aging property; Prescription is advanced, and generalization is strong, has solved the problem of the environmental stress resistance difference of instrument tank material; Satisfy the requirement of rotational moulding complete processing, reach the same life-span of car load the work-ing life that is made into automobile toolbox.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
[0008]Embodiment 1
As shown in Figure 1, use electronic scales weighing linear low density polyethylene (Qilu Petrochemical LLDPE 7150) 85 kilograms; 5 kilograms of high density polyethylene(HDPE)s (Daqing petrochemical HDPE 5200S); 2 kilograms of POE polyolefin elastomers; 1 kilogram of EVA rubber plastic foam material; 0.1 kilogram of calcium stearate; 0.2 kilogram of antioxidant 1010; 168 0.4 kilograms in oxidation inhibitor; 0.2 kilogram of UV light absorber UV531; After weighing is intact; Put into mixer to linear low density polyethylene, high density polyethylene(HDPE), POE polyolefin elastomer, EVA rubber plastic foam material, calcium stearate, antioxidant 1010, oxidation inhibitor 168 and UV light absorber UV531; 1500 rev/mins of rotating speeds carry out mixing in 15 minutes; After having mixed, mixed material through twin screw extruder extrude, granulation processes the good material of modification; Before the rotational moulding work box, it is subsequent use that the process shredder grinds to form 30 purpose powder.
Embodiment 2
Use electronic scales weighing linear low density polyethylene (Qilu Petrochemical LLDPE 7150) 90 kilograms; 4 kilograms of high density polyethylene(HDPE)s (Daqing petrochemical HDPE 5200S); 1.5 kilograms of POE polyolefin elastomers; 1.5 kilograms of EVA rubber plastic foam materials; 0.1 kilogram of calcium stearate; 0.3 kilogram of antioxidant 1010; 168 0.3 kilograms in oxidation inhibitor; 0.2 kilogram of UV light absorber UV531; After weighing is intact, put into mixer to linear low density polyethylene, high density polyethylene(HDPE), POE, EVA, calcium stearate, antioxidant 1010, oxidation inhibitor 168 and UV light absorber, 1500 rev/mins of rotating speeds carry out mixing in 15 minutes; After having mixed, mixed material through twin screw extruder extrude, granulation processes the good material of modification; Before the rotational moulding work box, it is subsequent use that the process shredder grinds to form 30 purpose powder.
Embodiment 3
Use electronic scales weighing linear low density polyethylene (Qilu Petrochemical LLDPE 7150) 85 kilograms; 3 kilograms of high density polyethylene(HDPE)s (Daqing petrochemical HDPE 5200S); 1 kilogram of POE polyolefin elastomer; 1 kilogram of EVA rubber plastic foam material; 0.1 kilogram of calcium stearate; 0.3 kilogram of antioxidant 1010; 168 0.3 kilograms in oxidation inhibitor; 0.2 kilogram of UV light absorber UV531; After weighing is intact, put into mixer to linear low density polyethylene, high density polyethylene(HDPE), POE, EVA, calcium stearate, antioxidant 1010, oxidation inhibitor 168 and UV light absorber, 1500 rev/mins of rotating speeds carry out mixing in 15 minutes; After having mixed, mixed material through twin screw extruder extrude, granulation processes the good material of modification; Before the rotational moulding work box, it is subsequent use that the process shredder grinds to form 30 purpose powder.
The enclosure material TP
1.1 density
Make an experiment by GB/T 1033.1-2008 (A method).
1.2 Shao Er D hardness
Make an experiment by GB 2411-2008.
1.3 tensile strength and elongation at break
Make an experiment by GB/T 1040.2-2006,1A type sample, trial speed is 50 mm/min ± 5 mm/min.
1.4 single beam notched Izod impact strength
Regulation by GB/T 1043.1-2008 makes an experiment, and specimen size is 1 type, long 80 mm ± 2 mm, width 4 mm ± 0.2 mm, breach residual thickness 8 mm ± 0.2 mm, and breach is an A type breach.
1.5 modulus in flexure
Regulation by GB/T 9341-2008 makes an experiment, and specimen size is 16 ± 1 times of sample thickness for long 80 mm ± 2 mm, wide 10 mm ± 0.5 mm, thickness 4 mm ± 0.2 mm, test span, and trial speed is 2.0 mm/min ± 0.4 mm/min.
1.6 vicat softening temperature
Regulation by GB/T 1633-2000 makes an experiment, and TP is A
120
1.7 environmental stress cracking
Regulation by GB/T 1842-2008 makes an experiment, test and Selection condition B, and TP is F
50
1.8 heat-resistant aging
Be put in the thermal ageing case being of a size of long 80 mm ± 2 mm, wide 10 mm ± 0.5 mm, thickness 4 mm ± 0.2 mm sample,, take out the back and observe the cosmetic variation situation at 80 ℃ ± 2 ℃ envrionment temperature held 500 h.
Claims (1)
1. high-impact weathering resistance automobile rotational moulding plastic tool casing proprietary material is characterized in that comprising by weight following raw material: linear low density polyethylene 85～95; High density polyethylene(HDPE) 3～5; POE polyolefin elastomer 1～2; EVA rubber plastic foam material 1～2; Calcium stearate 0.1～0.2; Antioxidant 1010 0.2～0.3; Oxidation inhibitor 168 0.4; UV light absorber UV531 0.2;
The preparation method is following: after the above-mentioned raw materials weighing is finished, put into mixer to linear low density polyethylene, high density polyethylene(HDPE), POE, EVA, calcium stearate, antioxidant 1010, oxidation inhibitor 168 and UV light absorber and carry out mixing in 15～20 minutes; After having mixed, mixed material through twin screw extruder extrude, granulation processes the good material of modification; Before the rotational moulding work box, it is subsequent use that the process shredder grinds to form 30～40 purpose powder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102898015A CN102816372A (en) | 2012-08-15 | 2012-08-15 | Special high impact weathering resistance vehicle rotational moulding plastic tool box material |
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| CN2012102898015A CN102816372A (en) | 2012-08-15 | 2012-08-15 | Special high impact weathering resistance vehicle rotational moulding plastic tool box material |
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| CN102816372A true CN102816372A (en) | 2012-12-12 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012938A (en) * | 2012-12-29 | 2013-04-03 | 浙江科隆五金有限公司 | Tool box and preparation method thereof |
| CN103709483A (en) * | 2013-12-25 | 2014-04-09 | 上海金发科技发展有限公司 | Special high-density polyethylene compound for automobile windshield washer and preparation method thereof |
| CN103724784A (en) * | 2013-12-10 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Polyethylene cable material capable of being squeezed out and preparation method thereof |
| CN108394398A (en) * | 2018-03-27 | 2018-08-14 | 芜湖捷欧汽车部件有限公司 | A kind of automobile plastic vacuum tank and its preparation process |
| CN108586874A (en) * | 2018-05-10 | 2018-09-28 | 句容市百事特复合材料有限公司 | A kind of modified rotational moulding composite material special |
| CN109734983A (en) * | 2018-12-25 | 2019-05-10 | 浙江瑞堂塑料科技股份有限公司 | A kind of gram ball rotation molding polyethylene-polyolefin elastomer composite material and preparation method |
| CN110229406A (en) * | 2019-06-24 | 2019-09-13 | 中国石油化工股份有限公司 | A kind of floating on water photovoltaic plant floating body polyethylene special-purpose material and its application |
| CN112457552A (en) * | 2020-11-17 | 2021-03-09 | 苏州亨利通信材料有限公司 | Weather-resistant low-density polyethylene insulating material and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012938A (en) * | 2012-12-29 | 2013-04-03 | 浙江科隆五金有限公司 | Tool box and preparation method thereof |
| CN103724784A (en) * | 2013-12-10 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Polyethylene cable material capable of being squeezed out and preparation method thereof |
| CN103709483A (en) * | 2013-12-25 | 2014-04-09 | 上海金发科技发展有限公司 | Special high-density polyethylene compound for automobile windshield washer and preparation method thereof |
| CN108394398A (en) * | 2018-03-27 | 2018-08-14 | 芜湖捷欧汽车部件有限公司 | A kind of automobile plastic vacuum tank and its preparation process |
| CN108394398B (en) * | 2018-03-27 | 2021-02-02 | 芜湖捷欧汽车部件有限公司 | Automobile plastic vacuum tank and preparation process thereof |
| CN108586874A (en) * | 2018-05-10 | 2018-09-28 | 句容市百事特复合材料有限公司 | A kind of modified rotational moulding composite material special |
| CN109734983A (en) * | 2018-12-25 | 2019-05-10 | 浙江瑞堂塑料科技股份有限公司 | A kind of gram ball rotation molding polyethylene-polyolefin elastomer composite material and preparation method |
| CN109734983B (en) * | 2018-12-25 | 2022-01-18 | 浙江瑞堂塑料科技股份有限公司 | Pickering ball rotational molding polyethylene-polyolefin elastomer composite material and preparation method thereof |
| CN110229406A (en) * | 2019-06-24 | 2019-09-13 | 中国石油化工股份有限公司 | A kind of floating on water photovoltaic plant floating body polyethylene special-purpose material and its application |
| CN112457552A (en) * | 2020-11-17 | 2021-03-09 | 苏州亨利通信材料有限公司 | Weather-resistant low-density polyethylene insulating material and preparation method thereof |
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