CN102336930B - Fully degradable garbage bag composite material and preparation process thereof - Google Patents
Fully degradable garbage bag composite material and preparation process thereof Download PDFInfo
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- CN102336930B CN102336930B CN201110207090.8A CN201110207090A CN102336930B CN 102336930 B CN102336930 B CN 102336930B CN 201110207090 A CN201110207090 A CN 201110207090A CN 102336930 B CN102336930 B CN 102336930B
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Abstract
The invention discloses a fully degradable garbage bag composite material and a preparation process thereof. The composite material is characterized by comprising the following components in parts by weight: 55-65 parts of corn starch, 18-23 parts of polyvinyl alcohol, 8-12 parts of glycerin, 4-6 parts of ethylene glycol, 2-4 parts of urea and 5-7 parts of organo-montmorillonite. The composite material disclosed by the invention has good dispersibility, maintains the original longitudinal and lateral tension properties, and has good promotion value.
Description
Technical field
The present invention relates to refuse bag and prepare material technology field, relate in particular the compound fully degraded garbage bag material of a kind of starch/PLA.
Background technology
Poly(lactic acid) (PLA) is a kind of novel biodegradable material, and the starch material that uses reproducible plant resources (as corn) to be proposed is made.Extrusion grade resin is the main application of PLA, is mainly used in fresh vegetables and fruits packing in large supermarket, and such packing has become the important a member in the chain of European market; Secondly for some, advocate the electronic product packing of safety, energy-saving and environmental protection.In these purposes, the advantage applies such as PLA high-clarity, high glossiness, high rigidity obtains incisively and vividly, has been at present the dominant direction of PLA application.In addition, the application of extrusion grade resin on gardening also starts to obtain to be paid attention to, and in fields such as slope greening, sandstorm improvement, existing institute applies at present.If Chinese Patent Application No. is CN200910212940.6, denomination of invention is for polyethylene modified material of degradable garbage bags and preparation method thereof, its component is: W-Gum 25%～35%, high density polyethylene(HDPE) 60%～70%, Research of Grafting Malaic Anhydride Onto Polyethylene 5%～10%.Preparation technology: first W-Gum, high density polyethylene(HDPE), Research of Grafting Malaic Anhydride Onto Polyethylene are mixed in high-speed mixer, mixture plastifies in twin screw extruder, mixing, through extruding, after cooling, pelletizing, obtain the polyethylene modified material for degradable garbage bags.The refuse bag outward appearance that this patent system obtains is yellowish transparent, shows bright and cleanly, but degradation capability is general, and physical strength is not enough, is difficult to meet the demand in market.
Summary of the invention
Object of the present invention is exactly a kind of not only favorable dispersity providing in order to solve the deficiency of prior art, and vertical lateral pull keeps original performance, and has the compound fully degraded garbage bag material of environment-friendly function.
Another object of the present invention is to provide a kind of preparation technology of compound fully degraded garbage bag material.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of compound fully degraded garbage bag material, it is characterized in that, and its component and part by weight umber ratio comprise:
W-Gum 55-65 part
Polyvinyl alcohol 18-23 part
Glycerine 8-12 part
Ethylene glycol 4-6 part
Urea 2-4 part
Organo montmorillonite 5-7 part.
As further illustrating of such scheme: the component of described garbage bag material and part by weight umber are preferred:
60 parts of W-Gums
20 parts of polyvinyl alcohol
10 parts of glycerine
5 parts of ethylene glycol
3 parts, urea
6 parts of organo montmorillonites.
A preparation technology for compound fully degraded garbage bag material, is characterized in that, it comprises the steps:
A, first by W-Gum at horizontal high-speed mixing machine, heating middling speed is mixed 25-35 minute;
B, add polyvinyl alcohol, high-speed mixing 10-20 minute;
C, the mass transport mixing arrive screw discharging kneader;
D, add glycerine, ethylene glycol, urea, the mixing plasticizing of high speed;
E, add organo montmorillonite;
F, extruding pelletization;
G, finished product packing.
In described processing step a process, heating middling speed is mixed 30 minutes, mixed powder water content <2%.
In the high-speed mixing process of described processing step b, high-speed mixing 15 minutes.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
1, matrix material of the present invention, on traditional blown film machine, can normally be produced completely.
2, favorable dispersity, vertical lateral pull keeps original performance.
3, reach environment-friendly function.
Embodiment
A kind of compound fully degraded garbage bag material of the present invention, is characterized in that, its component and part by weight umber ratio comprise:
W-Gum 55-65 part
Polyvinyl alcohol 18-23 part
Glycerine 8-12 part
Ethylene glycol 4-6 part
Urea 2-4 part
Organo montmorillonite 5-7 part.
In the present embodiment, the component of garbage bag material and part by weight umber are preferred:
60 parts of W-Gums
20 parts of polyvinyl alcohol
10 parts of glycerine
5 parts of ethylene glycol
3 parts, urea
6 parts of organo montmorillonites.
The preparation technology of compound fully degraded garbage bag material, its processing step is rapid as follows:
1, first by W-Gum at horizontal high-speed mixing machine, heating middling speed is mixed 30 minutes, reaches combination drying effect, water content <2%;
2, add polyvinyl alcohol, high-speed mixing 10 minutes, each component distributes and mixes;
4, the mass transport mixing is to screw discharging kneader;
5, glycerol adding, ethylene glycol, urea is entered, the mixing plasticizing of high speed;
6, add organo montmorillonite, toughening modifying;
7, extruding pelletization;
8, finished product packing.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (1)
1. a preparation technology for compound fully degraded garbage bag material, is characterized in that, it comprises the steps:
A, first by W-Gum at horizontal high-speed mixing machine, heating middling speed is mixed 25-35 minute;
B, add polyvinyl alcohol, high-speed mixing 10-20 minute;
C, the mass transport mixing arrive screw discharging kneader;
D, add glycerine, ethylene glycol, urea, the mixing plasticizing of high speed;
E, add organo montmorillonite;
F, extruding pelletization;
G, finished product packing;
The part by weight umber of the material adding in described step a-step e is:
W-Gum 55-65 part,
Polyvinyl alcohol 18-23 part,
Glycerine 8-12 part,
Ethylene glycol 4-6 part,
Urea 2-4 part,
Organo montmorillonite 5-7 part.
2
.the preparation technology of a kind of compound fully degraded garbage bag material according to claim 1, is characterized in that, in described processing step a process, heating middling speed is mixed 30 minutes, mixed powder water content <2%.
3
.the preparation technology of a kind of compound fully degraded garbage bag material according to claim 1, is characterized in that, in the high-speed mixing process of described processing step b, and high-speed mixing 15 minutes.
4
.the preparation technology of a kind of compound fully degraded garbage bag material according to claim 1, is characterized in that, in the high-speed mixing process of described processing step b, treatment agent is wanted complete coated powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207090.8A CN102336930B (en) | 2011-07-23 | 2011-07-23 | Fully degradable garbage bag composite material and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207090.8A CN102336930B (en) | 2011-07-23 | 2011-07-23 | Fully degradable garbage bag composite material and preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102336930A CN102336930A (en) | 2012-02-01 |
| CN102336930B true CN102336930B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110207090.8A Expired - Fee Related CN102336930B (en) | 2011-07-23 | 2011-07-23 | Fully degradable garbage bag composite material and preparation process thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102336930B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987487A (en) * | 2017-12-21 | 2018-05-04 | 苏州星火丰盈环保包装有限公司 | A kind of preparation process of toughness complete biodegradable refuse bag |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5665152A (en) * | 1995-11-29 | 1997-09-09 | Midwest Grain Products | Biodegradable grain protein-based solid articles and forming methods |
| CN1357563A (en) * | 2001-12-29 | 2002-07-10 | 中国科学院长春应用化学研究所 | Prepn of biodegradable film of ternary starch-PVA-polyester system material |
| CN1618851A (en) * | 2004-10-15 | 2005-05-25 | 天津大学 | Preparation method of thermoplastic starch material |
| CN101506291B (en) * | 2006-08-04 | 2013-12-04 | 普朗蒂克科技有限公司 | Mouldable biodegradable polymer |
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2011
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| CN102336930A (en) | 2012-02-01 |
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Application publication date: 20120201 Assignee: JINHUI ZHAOLONG HIGH-TECH CO., LTD. Assignor: Foshan Henglong Technology Co., Ltd. Contract record no.: 2014110000077 Denomination of invention: Fully degradable garbage bag composite material and preparation process thereof Granted publication date: 20140416 License type: Exclusive License Record date: 20141230 |
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Granted publication date: 20140416 Termination date: 20200723 |
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