CN103497268A - High-density polyethylene plastic production process - Google Patents
High-density polyethylene plastic production process Download PDFInfo
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- CN103497268A CN103497268A CN201310394071.XA CN201310394071A CN103497268A CN 103497268 A CN103497268 A CN 103497268A CN 201310394071 A CN201310394071 A CN 201310394071A CN 103497268 A CN103497268 A CN 103497268A
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- density polyethylene
- plastics production
- polyethylene plastics
- production technique
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Abstract
The invention discloses a high-density polyethylene plastic production process. The processing process comprises the steps that: an exothermic reaction is carried out with an ethylene monomer, an a-olefin monomer, a catalyst system, and a hydrocarbon diluent, wherein hydrogen and the catalyst are used for controlling the molecular weights. Stirring is carried out by using a slurry reactor; during the stirring process, ethylene contacts co-monomer, such that high-density polyethylene particles are formed. The product produced with the process provided by the invention has high rigidity and toughness, good mechanical strength, good dielectric property, and good environmental stress cracking resistance. Also, the process has good application effect, and is worthy popularization in the field.
Description
Technical field
The present invention relates to plastic working and manufacture field, particularly a kind of high-density polyethylene plastics production technique.
Background technology
High density polyethylene(HDPE) is a kind of of plastics, and high density polyethylene(HDPE) (High Density Polyethylene, referred to as " HDPE ") is high, the nonpolar thermoplastic resin of a kind of degree of crystallinity.The milky appearance of ortho states HDPE, be to a certain degree translucent in meagre cross section.PE has good anti-great majority life and the characteristic of chemicals for industrial use.The chemical of some kind can produce chemical corrosion, for example corrosive oxidation agent (concentrated nitric acid), aromatic hydrocarbon (dimethylbenzene) and halon (tetracol phenixin).Non-hygroscopic and the steam-preventing that had of this polymkeric substance, can be used for packing purposes.HDPE has good electrical property, particularly dielectric strength is high, make it be applicable to very much electric wire, in there is fabulous shock resistance to the high molecular grade, even all like this under-40F low temperature at normal temperature, the routine techniques adopted at present also has very large room for promotion on production technique.
The present invention provides a kind of high-density polyethylene plastics production technique in order to solve above technological problems, and the product that this production technique is produced has very high quality stability, and fusing point has also had lifting by a relatively large margin.
Technical scheme disclosed by the invention is to realize like this, a kind of high-density polyethylene plastics production technique, the course of processing by vinyl monomer, a-olefinic monomer, catalyst system and the thermopositive reaction carried out of hydrocarbon diluent, hydrogen and catalyzer are used for controlling molecular weight, then with slurry-phase reactor, stirred, in whipping process, can make ethene be contacted with comonomer, form the high density polyethylene(HDPE) particle.
As a further improvement on the present invention: in the high-density polyethylene plastics production process, add antioxidant addn.
As a further improvement on the present invention: add copper(greening)inhibitor and add anti-UV additive in whipping process.
As a further improvement on the present invention: the PE that adds carbon black in the high-density polyethylene plastics production process.
As a further improvement on the present invention: described slurry-phase reactor is stirring tank or large-sized annular reactor.
A kind of high-density polyethylene plastics production technique disclosed by the invention, the product that technique of the present invention is produced has higher rigidity and toughness, and physical strength is good, dielectric properties are good, resisting environmental stress and cracking is better, and this technique result of use is good, is worth promoting the use of of this field.
Embodiment
Below with reference to specific embodiment, technical scheme provided by the invention is elaborated, should understands following embodiment and only for the present invention is described, is not used in and limits the scope of the invention.
The invention disclosed patent is achieved like this, embodiment 1, the course of processing by vinyl monomer, a-olefinic monomer, catalyst system and the thermopositive reaction carried out of hydrocarbon diluent, hydrogen and catalyzer are used for controlling molecular weight, then with slurry-phase reactor, stirred, in whipping process, can make ethene be contacted with comonomer, form the high density polyethylene(HDPE) particle.
Embodiment 2, in the high-density polyethylene plastics production process, add antioxidant addn.
Embodiment 3, add copper(greening)inhibitor and add anti-UV additive in whipping process.
Embodiment 4, add the PE of carbon black in the high-density polyethylene plastics production process.
Embodiment 5, and described slurry-phase reactor is stirring tank or large-sized annular reactor.
A kind of high-density polyethylene plastics production technique disclosed by the invention, the product that technique of the present invention is produced has higher rigidity and toughness, and physical strength is good, dielectric properties are good, resisting environmental stress and cracking is better, and this technique result of use is good, is worth promoting the use of of this field.
Needing the above-mentioned of explanation be only preferred embodiment of the present invention, not is used for limiting protection scope of the present invention, and the equivalents of having done on the basis of above-described embodiment all belongs to protection scope of the present invention.
Claims (5)
1. a high-density polyethylene plastics production technique, it is characterized in that: the course of processing by vinyl monomer, a-olefinic monomer, catalyst system and the thermopositive reaction carried out of hydrocarbon diluent, hydrogen and catalyzer are used for controlling molecular weight, then with slurry-phase reactor, stirred, in whipping process, can make ethene be contacted with comonomer, form the high density polyethylene(HDPE) particle.
2. a kind of high-density polyethylene plastics production technique according to claim 1, is characterized in that: in the high-density polyethylene plastics production process, add antioxidant addn.
3. a kind of high-density polyethylene plastics production technique according to claim 1, is characterized in that: add copper(greening)inhibitor and add anti-UV additive in whipping process.
4. a kind of high-density polyethylene plastics production technique according to claim 1, is characterized in that: the PE that adds carbon black in the high-density polyethylene plastics production process.
5. a kind of high-density polyethylene plastics production technique according to claim 1, it is characterized in that: described slurry-phase reactor is stirring tank or large-sized annular reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394071.XA CN103497268A (en) | 2013-09-03 | 2013-09-03 | High-density polyethylene plastic production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394071.XA CN103497268A (en) | 2013-09-03 | 2013-09-03 | High-density polyethylene plastic production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103497268A true CN103497268A (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310394071.XA Pending CN103497268A (en) | 2013-09-03 | 2013-09-03 | High-density polyethylene plastic production process |
Country Status (1)
| Country | Link |
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| CN (1) | CN103497268A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835822A (en) * | 2015-07-15 | 2018-03-23 | 道达尔研究技术弗吕公司 | For the technique for preparing polyethylene product |
-
2013
- 2013-09-03 CN CN201310394071.XA patent/CN103497268A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835822A (en) * | 2015-07-15 | 2018-03-23 | 道达尔研究技术弗吕公司 | For the technique for preparing polyethylene product |
| CN107835822B (en) * | 2015-07-15 | 2020-06-09 | 道达尔研究技术弗吕公司 | Process for preparing polyethylene products |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140108 |
|
| WD01 | Invention patent application deemed withdrawn after publication |