CN102070813A - Plastic film - Google Patents
Plastic film Download PDFInfo
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- CN102070813A CN102070813A CN 201010600315 CN201010600315A CN102070813A CN 102070813 A CN102070813 A CN 102070813A CN 201010600315 CN201010600315 CN 201010600315 CN 201010600315 A CN201010600315 A CN 201010600315A CN 102070813 A CN102070813 A CN 102070813A
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- waste
- particle
- particles
- plastic film
- polyethylene resin
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Abstract
The invention discloses a plastic film. The plastic film is prepared from mixed particles formed by mainly mixing waste polyethylene resin particles and auxiliary materials, wherein the mixed particles comprise the following components in percentage by weight: 90 to 94 percent of waste polyethylene resin particles, 4 to 8 percent of linear plastic particles and 1 to 2 percent of brightener particles; the waste polyethylene resin particles are waste high-density polyethylene particles or waste low-density polyethylene particles; the linear plastic particles are linear low-density polyethylene particles; a brightener is 1,4-bis(2-cyanostyryl)benzene; and the density of the linear low-density polyethylene particles is lower than 0.910g/cc. Packaging bags of various specifications, which are prepared from the plastic film, are difficult to break when stretched and have low preparation cost.
Description
Technical field
The present invention relates to a kind of plastic film, be specifically related to the plastic film that mainly utilizes waste or used plastics to make.
Background technology
Along with being extensive use of of China's plastics, waste or used plastics also rolls up, and has caused serious " white pollution ", and the utilization again of waste or used plastics has prospect very much.
A lot of enterprises utilize the waste polyethylene plastics to produce plastic film, after be made into all size packing bag.Utilize the plastic film of waste polyethylene plastics-production, some physical index of its plastic film is not fine, and is little low with elongation at break as tensile strength, the fracture easily that stretches, and influence is used.
The plastic film of enterprise for guaranteeing to produce, physical index meets the demands, and how to add a certain amount of new polyethylene resin particle in the waste polyethylene resin particle, mixes as main raw material, increases cost.
Summary of the invention
The purpose of this invention is to provide a kind of plastic film, solve the plastic film utilize the production of waste polyethylene resin particle and exist tensile strength and elongation at break low, the problem of stretching easy fracture.
In order to solve technical problem recited above, the present invention takes following technical scheme: a kind of plastic film, mainly utilize waste polyethylene resin particle and auxiliary material to be mixed into the plastic film that stuff and other stuff is made; Described stuff and other stuff is by weight percentage: waste polyethylene resin particle 90-94%, line style plastic pellet 4-8%, whitening agent particle 1-2%, described waste polyethylene resin particle is selected from waste and old high density polyethylene(HDPE) particle or waste and old new LDPE (film grade) particle, described line style plastic pellet is the LLDPE particle, described whitening agent is 1, two (the 2-cyano-styrene base) benzene of 4-.
Described LLDPE Particle Density is lower than 0.910g/cc.
Plastic film provided by the invention, major ingredient adopt waste and old high density polyethylene(HDPE) particle or waste and old new LDPE (film grade) particle, add auxiliary material line style plastic pellet and whitening agent particle composition, are prepared from by traditional blown film preparation method.
The invention has the beneficial effects as follows, owing in waste and old high density polyethylene(HDPE) particle of major ingredient or waste and old new LDPE (film grade) particle, add auxiliary material line style plastic pellet, the tensile strength and the elongation at break of plastic film improved a lot (specifically seeing Table 1), be made into all size packing bag, not easy fracture stretches, raising has reduced preparation cost to the recovery utilization rate of waste and old PE plastics.
| Physical index (major ingredient) auxiliary material add situation | Do not add | Add |
| Tensile strength (height) | 50kg/cm 2 | 100kg/cm 2 |
| Tensile strength (low) | 60kg/cm 2 | 130kg/cm 2 |
| Elongation at break (height) | 70％ | 140％ |
| Elongation at break (low) | 40％ | 160％ |
Table 1 plastic film physical index contrast table
Annotate: the high and low major ingredient of representing respectively is waste and old high density polyethylene(HDPE) particle, waste and old new LDPE (film grade) particle in the table 1, and auxiliary material adding situation is the adding situation of line style plastic pellet.
Below with reference to embodiment, the present invention will be described in detail.
Embodiment
Embodiment 1, and a kind of plastic film mainly utilizes waste polyethylene resin particle and auxiliary material to be mixed into the plastic film that stuff and other stuff is made; The component and the weight percent of described stuff and other stuff are as follows:
Waste polyethylene resin particle 94%;
Line style plastic pellet 4.8%;
Whitening agent particle 1.2%;
Wherein, the waste polyethylene resin particle is waste and old high density polyethylene(HDPE) particle or waste and old new LDPE (film grade) particle; The line style plastic pellet is the LLDPE particle, and described LLDPE Particle Density is lower than 0.910g/cc; Whitening agent is 1, two (the 2-cyano-styrene base) benzene of 4-.
Above component is made plastic film according to traditional blown film preparation method.
Embodiment 2, and a kind of plastic film mainly utilizes waste polyethylene resin particle and auxiliary material to be mixed into the plastic film that stuff and other stuff is made; The component and the weight percent of described stuff and other stuff are as follows:
Waste polyethylene resin particle 90%;
Line style plastic pellet 8%;
Whitening agent particle 2%;
Wherein, the waste polyethylene resin particle is waste and old high density polyethylene(HDPE) particle or waste and old new LDPE (film grade) particle; The line style plastic pellet is the LLDPE particle, and described LLDPE Particle Density is lower than 0.910g/cc; Whitening agent is 1, two (the 2-cyano-styrene base) benzene of 4-.
Above component is made plastic film according to traditional blown film preparation method.
Embodiment 3, and a kind of plastic film mainly utilizes waste polyethylene resin particle and auxiliary material to be mixed into the plastic film that stuff and other stuff is made; The component and the weight percent of described stuff and other stuff are as follows:
Waste polyethylene resin particle 93%;
Line style plastic pellet 6%;
Whitening agent particle 1%;
Wherein, the waste polyethylene resin particle is waste and old high density polyethylene(HDPE) particle or waste and old new LDPE (film grade) particle; The line style plastic pellet is the LLDPE particle, and described LLDPE Particle Density is lower than 0.910g/cc; Whitening agent is 1, two (the 2-cyano-styrene base) benzene of 4-.
Above component is made plastic film according to traditional blown film preparation method.
In the present invention, LLDPE is true qualities, cylindric or oblate shape particle, should be 2-5mm on the size any direction of particle, and there are not long-chain branch in tramp metal, mechanical impurity in structure.
Claims (2)
1. a plastic film mainly utilizes waste polyethylene resin particle and auxiliary material to be mixed into the plastic film that stuff and other stuff is made; It is characterized in that: described stuff and other stuff by weight percentage: waste polyethylene resin particle 90-94%, line style plastic pellet 4-8%, whitening agent particle 1-2%, described waste polyethylene resin particle is selected from waste and old high density polyethylene(HDPE) particle or waste and old new LDPE (film grade) particle, described line style plastic pellet is the LLDPE particle, described whitening agent is 1, two (the 2-cyano-styrene base) benzene of 4-.
2. plastic film as claimed in claim 1 is characterized in that: described LLDPE Particle Density is lower than 0.910g/cc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010600315 CN102070813A (en) | 2010-12-22 | 2010-12-22 | Plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010600315 CN102070813A (en) | 2010-12-22 | 2010-12-22 | Plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102070813A true CN102070813A (en) | 2011-05-25 |
Family
ID=44029584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010600315 Pending CN102070813A (en) | 2010-12-22 | 2010-12-22 | Plastic film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102070813A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807697A (en) * | 2011-06-02 | 2012-12-05 | 四川省三台智光科技有限公司 | Regenerated low pressure polyethylene modified reinforced material and production method thereof |
| CN103112184A (en) * | 2013-02-07 | 2013-05-22 | 河南省银丰塑料有限公司 | Preparation process of one-time fused and regenerated polyethylene agricultural plastic mulching film |
| CN103613833A (en) * | 2013-11-19 | 2014-03-05 | 厦门聚富塑胶制品有限公司 | Whitening process of PE (Polyethylene) stretch film |
| CN114805975A (en) * | 2022-03-30 | 2022-07-29 | 联想(北京)有限公司 | Composition of blow molding film for packaging, preparation method of blow molding film and blow molding film |
-
2010
- 2010-12-22 CN CN 201010600315 patent/CN102070813A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 《石油化工》 20031231 王永耀 聚乙烯、聚丙烯废塑料回收利用进展 第718-723页 1-2 第32卷, 第8期 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807697A (en) * | 2011-06-02 | 2012-12-05 | 四川省三台智光科技有限公司 | Regenerated low pressure polyethylene modified reinforced material and production method thereof |
| CN103112184A (en) * | 2013-02-07 | 2013-05-22 | 河南省银丰塑料有限公司 | Preparation process of one-time fused and regenerated polyethylene agricultural plastic mulching film |
| CN103613833A (en) * | 2013-11-19 | 2014-03-05 | 厦门聚富塑胶制品有限公司 | Whitening process of PE (Polyethylene) stretch film |
| CN114805975A (en) * | 2022-03-30 | 2022-07-29 | 联想(北京)有限公司 | Composition of blow molding film for packaging, preparation method of blow molding film and blow molding film |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |