CN109851884A - A kind of low precipitation polyvinyl resin - Google Patents
A kind of low precipitation polyvinyl resin Download PDFInfo
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- CN109851884A CN109851884A CN201711237914.XA CN201711237914A CN109851884A CN 109851884 A CN109851884 A CN 109851884A CN 201711237914 A CN201711237914 A CN 201711237914A CN 109851884 A CN109851884 A CN 109851884A
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- antioxidant
- precipitation
- polyvinyl resin
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Abstract
The invention discloses a kind of low precipitation polyvinyl resin, the phenomenon that product needed for being processed for the tape casting, wax-like precipitation to improve low molecular weight when existing polyethylene product application the tape casting produces.It is prepared by following raw material in parts by weight: polyethylene powder 1000, antioxidant A 0.4, antioxidant B 0.3, antistatic agent 0.25, zinc stearate 0.25.Preparation method, comprising the following steps: each component is mixed in following mass fraction ratio and is granulated to obtain the final product.All auxiliary agents can also be first granulated into mixed additive, then mixed additive is mixed with polyethylene powder by the mass ratio of 1.2:1000 and is granulated up to low precipitation polyvinyl resin.In addition, the application the invention also discloses above-mentioned low precipitation polyvinyl resin and mixed additive on low precipitation the tape casting product.Low precipitation polyvinyl resin provided by the present invention, amount of precipitation have dropped an order of magnitude compared with same type resin, when carrying out curtain coating production using the resin, have the advantages that protrusion.
Description
Technical field
The present invention relates to petrochemicals manufacture field, specifically a kind of low precipitation polyvinyl resin can drop significantly
The precipitate of oligomerisation of ethylene naval stores.
Background technique
The polyvinyl resin product for the Shenyang wax that the existing polyvinyl resin such as trade mark is 7042 passes through in downstream client
When the tape casting produces (stretch wrap film, preservative film), the wax for having low molecular weight is precipitated, and seriously affects product appearance quality
With；Meanwhile with the accumulation of precipitate, the filtration system of meeting occluding device causes equipment downtime, seriously affects production
Continuity.Therefore, a kind of low precipitation polyvinyl resin is needed.
Summary of the invention
The object of the present invention is to provide a kind of low precipitation polyvinyl resin, product needed for being processed for the tape casting, to improve
The phenomenon that wax-like precipitation of low molecular weight when existing polyethylene product application the tape casting produces.
The technical scheme adopted by the invention is that:
A kind of low precipitation polyvinyl resin, it is characterised in that: be prepared by following raw material in parts by weight: polyethylene powder
1000, antioxidant A 0.4, antioxidant B 0.3, antistatic agent 0.25, zinc stearate 0.25；
The polyethylene powder volume density is 0.920g/cm3, melt index 2.0；
The antioxidant A is the mixture of 2,4- DI-tert-butylphenol compounds and 2,6 di t butyl phenol that mass ratio is 1:4；
The antioxidant B is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester that purity is greater than 99%；
The antistatic agent is octadecyl ethylene glycol amine.
Further: main ingredient content is greater than 95% in the antioxidant A；The fusing point of antioxidant B is at 50-55 DEG C.
The above-mentioned low preparation method that polyvinyl resin is precipitated, it is characterised in that: the following steps are included: by each component by as follows
Mass fraction ratio mixing: polyethylene powder 1000, antioxidant A0.4, antioxidant B 0.3, antistatic agent 0.25 and stearic acid
Zinc 0.25；The screw extruder that draw ratio is 30:1 ~ 75:1 is added in uniformly mixed material, the temperature for controlling extruder is
It 190-200 DEG C, is granulated to obtain the final product.
It is further: first by mass parts ratio are as follows: antioxidant A0.4, antioxidant B 0.3, antistatic agent 0.25 and tristearin
The each component of sour zinc 0.25 is uniformly mixed, and is granulated into mixed additive, then mixed additive and polyethylene powder are pressed 1.2:
1000 mass ratio is mixed and is granulated up to low precipitation polyvinyl resin.
The invention also discloses application of the above-mentioned low precipitation polyvinyl resin on low precipitation the tape casting product.
The invention also discloses application of the above-mentioned mixed additive on low precipitation the tape casting product.
The invention has the advantages that low precipitation polyvinyl resin provided by the present invention, the weight of the wax of the low molecular weight of precipitation
Amount substantially reduces, and has dropped an order of magnitude compared with same type resin, stretches carrying out curtain coating production preparation using the resin
When winding the products such as film, preservative film, have clean surface smooth, without visible precipitation, production and processing continuity is good, high production efficiency
The advantages of.In addition, each component chemical property of the invention is stablized, it is convenient that preparation saves, and processing and manufacturing is relatively easy.
Detailed description of the invention
Fig. 1 is the surface electron microscope that resin of the present invention prepares print；
Fig. 2 is the surface electron microscope that existing resin prepares print.
Specific embodiment
The invention discloses a kind of low precipitation polyvinyl resins, are prepared by following raw material in parts by weight: polyethylene
Powder 1000, antioxidant A 0.4, antioxidant B 0.3, antistatic agent 0.25, zinc stearate 0.25；
Described polyethylene powder (low-pressure vapor phase method the is used to prepare) density is 0.920g/cm3, melt index is 2.0 g/
The linear low density polyethylene of 10min；
The antioxidant A is the mixture of 2,4- DI-tert-butylphenol compounds and 2,6 di t butyl phenol that mass ratio is 1:4；
The antioxidant B is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester that purity is greater than 99%；
The antistatic agent is octadecyl ethylene glycol amine；
Wherein: the summation of main ingredient, that is, 2,4- DI-tert-butylphenol compounds and 2,6 di t butyl phenol contains in the antioxidant A
Amount is greater than 95%；The fusing point of antioxidant B is at 50-55 DEG C.
A kind of low preparation method that polyvinyl resin is precipitated, comprising the following steps: mix following quality each component: poly- second
Alkene powder 1000kg, antioxidant A0.4 kg, 0.25 kg of 0.3 kg of antioxidant B, 0.25 kg of antistatic agent and zinc stearate；
Uniformly mixed material is added in Squeezinggranulator, the temperature for controlling pelletizer is 190-200 DEG C, is granulated up to of the invention
Low precipitation polyvinyl resin.
The Squeezinggranulator is common apparatus, can be used existing production equipment, for example, select draw ratio be 30:1 ~
The screw extruder of 75:1.
It is preferred: first by mass parts ratio are as follows: antioxidant A0.4, antioxidant B 0.3, antistatic agent 0.25 and tristearin
The each component of sour zinc 0.25 is uniformly mixed, and is granulated into mixed additive, then mixed additive and polyethylene powder are pressed 1.2:
1000 mass ratio is mixed and is granulated up to low precipitation polyvinyl resin.
The invention also discloses above-mentioned low precipitation polyvinyl resins to prepare low precipitation product such as with the tape casting processing
Application on stretch wrap film, preservative film etc..
Such as stretching of low precipitation product is prepared in utilization the tape casting processing the invention also discloses above-mentioned mixed additive to twine
Application on film, preservative film etc..
The polyethylene tree for being 7042 by resin of the present invention and the trade mark of existing Shenyang Olefin Chemical Co., Ltd.
Rouge prepares print by identical technique (the tape-casting technique as described in " chemical process safety handbook " fourth edition) processing,
The print for taking phase homogenous quantities, print is immersed in hexane solution, and room temperature is kept for 24 hours, is extracted on print using n-hexane
Low-molecular-weight wax impregnate weightlessness, that is, precipitate weight of front and back by weighing because resin itself is insoluble, and then can calculate low
The quality of molecular wax and the ratio of print quality are as a result as follows:
Original polyvinyl resin: precipitate accounts for print mass percent are as follows: 0.15%；
Polyvinyl resin of the present invention: precipitate accounts for print mass percent are as follows: 0.016%；Compared with before improvement, amount of precipitation is reduced
It is original 1/10th.As shown in Figure 1, white is precipitate, occupied area and thickness are smaller, and Fig. 2 is larger.Usual situation
Under in polyethylene products, the case where amount of precipitation of low-molecular-weight wax is lower than 0.1%, is considered low precipitation, and amount of precipitation is lower than 0.01%
The case where be considered no precipitation.Therefore, the polyvinyl resin of the invention is low precipitation polyvinyl resin, close to no precipitation
Polyvinyl resin.
The present invention plays low analysis to downstream product by the combination and mixture of existing antioxidant and the auxiliary agent of antistatic agent
Function out, amount of precipitation have dropped an order of magnitude compared with same type resin, are carrying out curtain coating production preparation using the resin
When the products such as stretch wrap film, preservative film, have clean surface smooth, without visible precipitation, production and processing continuity is good, production effect
The high advantage of rate.In addition, also there is the present invention each component chemical property to stablize, it is convenient that preparation saves, and processing and manufacturing is relatively easy
The advantages of.
Claims (6)
1. a kind of low precipitation polyvinyl resin, it is characterised in that: be prepared by following raw material in parts by weight: polyethylene powder
1000, antioxidant A 0.4, antioxidant B 0.3, antistatic agent 0.25, zinc stearate 0.25；
The polyethylene powder volume density is 0.920g/cm3, melt index 2.0；
The antioxidant A is the mixture of 2,4- DI-tert-butylphenol compounds and 2,6 di t butyl phenol that mass ratio is 1:4；
The antioxidant B is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester that purity is greater than 99%；
The antistatic agent is octadecyl ethylene glycol amine.
2. low precipitation polyvinyl resin according to claim 1, it is characterised in that: main ingredient in the antioxidant A
Content is greater than 95%；The fusing point of antioxidant B is at 50-55 DEG C.
3. the low preparation method that polyvinyl resin is precipitated according to claim 1, it is characterised in that: the following steps are included:
Each component is mixed in following mass fraction ratio: polyethylene powder 1000, antioxidant A0.4, antioxidant B 0.3, antistatic
Agent 0.25 and zinc stearate 0.25；The screw extruder that draw ratio is 30:1 ~ 75:1, control is added in uniformly mixed material
The temperature of extruder processed is 190-200 DEG C, is granulated to obtain the final product.
4. preparation method according to claim 3, it is characterised in that: first by mass parts ratio are as follows: antioxidant A0.4, resist
The each component of oxygen agent B 0.3, antistatic agent 0.25 and zinc stearate 0.25 are uniformly mixed, and are granulated into mixed additive, then
Mixed additive is mixed with polyethylene powder by the mass ratio of 1.2:1000 and is granulated up to low precipitation polyvinyl resin.
5. the low application that polyvinyl resin is precipitated on low precipitation the tape casting product as described in claim 1.
6. application of the mixture additive as claimed in claim 4 on low precipitation the tape casting product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711237914.XA CN109851884A (en) | 2017-11-30 | 2017-11-30 | A kind of low precipitation polyvinyl resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711237914.XA CN109851884A (en) | 2017-11-30 | 2017-11-30 | A kind of low precipitation polyvinyl resin |
Publications (1)
| Publication Number | Publication Date |
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| CN109851884A true CN109851884A (en) | 2019-06-07 |
Family
ID=66888179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201711237914.XA Pending CN109851884A (en) | 2017-11-30 | 2017-11-30 | A kind of low precipitation polyvinyl resin |
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| CN (1) | CN109851884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113736163A (en) * | 2021-08-24 | 2021-12-03 | 万华化学集团股份有限公司 | Low-precipitation yellowing-resistant high-hydrophobicity polyethylene cast film and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012322A (en) * | 2006-11-16 | 2007-08-08 | 扬子石油化工股份有限公司 | Antistatic adhesion-resistant slippery linear low density polyethylene composition and method of making the same |
| CN102952326A (en) * | 2012-10-16 | 2013-03-06 | 中国石油化工股份有限公司 | Modified linear polyethylene resin and preparation method thereof |
| CN103554632A (en) * | 2013-10-21 | 2014-02-05 | 中国石油化工股份有限公司 | High-strength linear low density polyethylene film resin and preparation method thereof |
-
2017
- 2017-11-30 CN CN201711237914.XA patent/CN109851884A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012322A (en) * | 2006-11-16 | 2007-08-08 | 扬子石油化工股份有限公司 | Antistatic adhesion-resistant slippery linear low density polyethylene composition and method of making the same |
| CN102952326A (en) * | 2012-10-16 | 2013-03-06 | 中国石油化工股份有限公司 | Modified linear polyethylene resin and preparation method thereof |
| CN103554632A (en) * | 2013-10-21 | 2014-02-05 | 中国石油化工股份有限公司 | High-strength linear low density polyethylene film resin and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 周祥兴: "《实用塑料包装制品手册》", 31 July 2000, 中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113736163A (en) * | 2021-08-24 | 2021-12-03 | 万华化学集团股份有限公司 | Low-precipitation yellowing-resistant high-hydrophobicity polyethylene cast film and preparation method thereof |
| CN113736163B (en) * | 2021-08-24 | 2022-08-05 | 万华化学集团股份有限公司 | Low-precipitation yellowing-resistant high-hydrophobicity polyethylene cast film and preparation method thereof |
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Application publication date: 20190607 |