CN102336951B - Low-density polyethylene (LDPE) transparent composite material for agricultural film and preparation process for LDPE transparent composite material - Google Patents
Low-density polyethylene (LDPE) transparent composite material for agricultural film and preparation process for LDPE transparent composite material Download PDFInfo
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- CN102336951B CN102336951B CN 201110207089 CN201110207089A CN102336951B CN 102336951 B CN102336951 B CN 102336951B CN 201110207089 CN201110207089 CN 201110207089 CN 201110207089 A CN201110207089 A CN 201110207089A CN 102336951 B CN102336951 B CN 102336951B
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- agricultural mulching
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Abstract
The invention discloses a low-density polyethylene (LDPE) transparent composite material for agricultural film and a preparation process for the LDPE transparent composite material. The LDPE transparent composite material comprises the following components in part by weight: 85 to 95 parts of anhydrous sodium sulfate, 5 to 15 parts of superfine talcpowder, 1 to 1.8 parts of surfactant, 3 to 8 parts of polyolefin elastomer (POE), 55 to 65 parts of linear low density polyethylene (LLDPE) and 1 to 3 parts of polyisobutene. The LEPE transparent composite material has high dispersibility, maintains the original longitudinal and transverse tension, and has great promotion value.
Description
Technical field
The present invention relates to the plastic material technical field, relate in particular a kind of agricultural mulching transparent composite and preparation technology thereof.
Background technology
Low Density Polyethylene degree polyethylene (LDPE) is a kind of plastic material, and it is fit to the various moulding processs of thermoplastic molding's processing, and forming process is good.The LDPE main application is to make film product, also is used for injection-molded item, medical apparatus, medicine and packaging material for food, blowing slush molding goods.At present, traditional LDPE exists anti-environment capacity poor, and especially resistance to elevated temperatures is poor, be used under the agricultural mulching surrounding medium and be easy to brittle cracking, and shrinking percentage is large, and toughness and rigidity can not well be unified, and can not keep original performance to pulling force in length and breadth.
Summary of the invention
Purpose of the present invention is exactly a kind of not only favorable dispersity that provides for the deficiency that solves prior art, keeps original performance to pulling force in length and breadth, and has the agricultural mulching transparent composite of environment-friendly function.
Another object of the present invention provides a kind of preparation technology of agricultural mulching transparent composite.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of agricultural mulching transparent composite is characterized in that its component and part by weight umber ratio comprise:
Anhydrous sodium sulphate 85-95 part (particle diameter 1800-2200 order)
Superfine talcum powder 5-15 part (particle diameter 1800-2200 order)
Surface treatment agent 1-1.8 part
POE 3-8 part
LLDPE 55-65 part
Polyisobutene 1-3 part.
As further specifying of such scheme: the component of described matrix material and part by weight umber are preferred:
90 parts of anhydrous sodium sulphate
10 parts of superfine talcum powders
1.5 parts of surface treatment agents
5 parts of POE
60 parts of LLDPE
2 parts of polyisobutene.
A kind of preparation technology of agricultural mulching transparent composite is characterized in that it comprises the steps:
A, first anhydrous sodium sulphate and superfine talcum powder are added in horizontal double helical ribbon mixer, the heating middling speed was mixed 25-35 minute;
B, add surface treatment agent, high-speed mixing 10-20 minute;
C, add POE and LLDPE, high-speed mixing 8-15 minute;
D, by screw feeding machine, the mass transport that mixes is to continuous internal mixer material storage tank;
E, by the powder metering feeding machine, feeding is to continuous internal mixer;
F, polyisobutene is added to the liquid meter feeding machine, feeding is to continuous internal mixer;
G, extruding pelletization;
E, finished product packing.
In described processing step a process, described mixed powder water content＜2%, the heating middling speed was mixed 30 minutes.
In the high-speed mixing process of described processing step b, high-speed mixing 15 minutes, treatment agent is wanted complete coated powder.
In described processing step c process, high-speed mixing 10 minutes.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
1, matrix material of the present invention by original LDPE production technique, is fully normally produced on the blown film machine.
2, favorable dispersity keeps original performance to pulling force in length and breadth.
3, reach environment-friendly function.
Embodiment
A kind of agricultural mulching transparent composite of the present invention is characterized in that, its component and part by weight umber ratio comprise:
Anhydrous sodium sulphate 85-95 part (particle diameter 1800-2200 order)
Superfine talcum powder 5-15 part (particle diameter 1800-2200 order)
Surface treatment agent 1-1.8 part
POE 3-8 part
LLDPE 55-65 part
Polyisobutene 1-3 part.
Present embodiment is preferred, 90 parts of anhydrous sodium sulphate (particle diameter 2000 orders)
10 parts of superfine talcum powders (particle diameter 2000 orders)
1.5 parts of surface treatment agents
5 parts of POE
60 parts of LLDPE
2 parts of polyisobutene.
The preparation technology of agricultural mulching transparent composite, its processing step is as follows:
1, first anhydrous sodium sulphate and superfine talcum powder are added in horizontal double helical ribbon mixer, the heating middling speed was mixed 30 minutes, reached the combination drying effect, water content＜2%;
2, add surface treatment agent, high-speed mixing 15 minutes, the complete coated powder for the treatment of agent;
3, add POE and LLDPE, high-speed mixing 10 minutes, each component distributes and mixes;
4, by screw feeding machine, the mass transport that mixes is to continuous internal mixer material storage tank;
5, by the powder metering feeding machine, feeding is to continuous internal mixer;
6, polyisobutene is added to the liquid meter feeding machine, feeding is to continuous internal mixer;
7, extruding pelletization;
8, finished product packing.
Above-described only is preferred implementation of the present invention, should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (1)
1. an agricultural mulching transparent composite is characterized in that, its component and part by weight umber comprise:
Anhydrous sodium sulphate 85-95 part,
Superfine talcum powder 5-15 part,
Surface treatment agent 1-1.8 part,
POE 3-8 part,
LLDPE 55-65 part,
Polyisobutene 1-3 part.
2
.A kind of agricultural mulching transparent composite according to claim 1 is characterized in that, the particle diameter 1800-2200 order of described anhydrous sodium sulphate, the particle diameter 1800-2200 order of superfine talcum powder.
3
.A kind of agricultural mulching transparent composite according to claim 1 and 2 is characterized in that, the component of described matrix material and part by weight umber are preferred:
90 parts of anhydrous sodium sulphate,
10 parts of superfine talcum powders,
1.5 parts of surface treatment agents,
5 parts of POE,
60 parts of LLDPE,
2 parts of polyisobutene.
4
.A kind of preparation technology such as the described agricultural mulching transparent composite of claim 1-3 any one is characterized in that it comprises the steps:
A, first anhydrous sodium sulphate and superfine talcum powder are added in horizontal double helical ribbon mixer, heating, middling speed were mixed 25-35 minute;
B, add surface treatment agent, high-speed mixing 10-20 minute;
C, add POE and LLDPE, high-speed mixing 8-15 minute;
D, by screw feeding machine, the mass transport that mixes is to the continuous internal mixer storage tank;
E, by the powder metering feeding machine, feeding is to continuous internal mixer;
F, polyisobutene is added to the liquid meter feeding machine, feeding is to continuous internal mixer;
G, extruding pelletization;
E, finished product packing.
5
.The preparation technology of a kind of agricultural mulching transparent composite according to claim 4 is characterized in that, in described processing step a process, and described mixed powder water content＜2%, heating, middling speed were mixed 30 minutes.
6
.The preparation technology of a kind of agricultural mulching transparent composite according to claim 4 is characterized in that, in the high-speed mixing process of described processing step b, and high-speed mixing 15 minutes, treatment agent is wanted complete coated powder.
7
.The preparation technology of a kind of agricultural mulching transparent composite according to claim 4 is characterized in that, in described processing step c process, and high-speed mixing 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110207089 CN102336951B (en) | 2011-07-23 | 2011-07-23 | Low-density polyethylene (LDPE) transparent composite material for agricultural film and preparation process for LDPE transparent composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110207089 CN102336951B (en) | 2011-07-23 | 2011-07-23 | Low-density polyethylene (LDPE) transparent composite material for agricultural film and preparation process for LDPE transparent composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102336951A CN102336951A (en) | 2012-02-01 |
| CN102336951B true CN102336951B (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110207089 Expired - Fee Related CN102336951B (en) | 2011-07-23 | 2011-07-23 | Low-density polyethylene (LDPE) transparent composite material for agricultural film and preparation process for LDPE transparent composite material |
Country Status (1)
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627070B (en) * | 2012-08-23 | 2016-04-06 | 中国石油天然气股份有限公司 | Low-haze polyethylene film resin composition |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5741521A (en) * | 1989-09-15 | 1998-04-21 | Goodman Fielder Limited | Biodegradable controlled release amylaceous material matrix |
| CN101104714A (en) * | 2006-07-13 | 2008-01-16 | 熊国栋 | Mineralising multi-component light biological whole degradation plastic |
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| CN102336951A (en) | 2012-02-01 |
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Granted publication date: 20130227 Termination date: 20200723 |