CN1223280A - Farm land mulch filma nd preparation process thereof - Google Patents
Farm land mulch filma nd preparation process thereof Download PDFInfo
- Publication number
- CN1223280A CN1223280A CN98100038A CN98100038A CN1223280A CN 1223280 A CN1223280 A CN 1223280A CN 98100038 A CN98100038 A CN 98100038A CN 98100038 A CN98100038 A CN 98100038A CN 1223280 A CN1223280 A CN 1223280A
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- CN
- China
- Prior art keywords
- starch
- mulch film
- straw
- film
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/16—Films or sheets; Webs; Fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Protection Of Plants (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The present invention relates to an agricultural mulch film. It uses the plant fibre and starch as main raw material, and adopts the extrusion process by means of screw extruder so as to obtain the required mulch film. Its raw material composition includes 80-90% of plant fibre containing corn stalk, wheat stalk and rice straw, 5-15% of starch and 3-5% of water. Said invented mulch film is identical to the polyethylene agricultural film in strength and light transmittance, and can be generally degraded within 20 days, and decomposed into organic fertilizer. The raw materials of said invention are easily available, and cost is low.
Description
The present invention relates to contain the composition of vegetable fibre, a kind of agricultural mulching of being engaged in for major ingredient system of more specifically saying so with the vegetable fibre.
In order to improve the output of farm crop, use mulch film on the agricultural widely.Just adopted the sixties with the agricultural mulching of the poly-right resin of second as covering material, but this mulch film is owing to use year after year, cause a large amount of discarded films to remain in the ground earth, influence the growth of plant, crop yield is descended, therefore, people are actively seeking long a kind of degradable material as mulch film.For example publication number proposes by polyvinyl resin for the CN1095388A patent application, and " the two plastics films that fall of biological and light " of compositions such as treated starch, photosensitizers, publication number are that CN1104656A patent application introduction is the Biodegradable films that raw material makes with polyvinyl alcohol starch, softening agent etc. for " method of production of agriculture film with corn stalk ", the publication number that the CN1095388A patent application proposes.Separate and fall effect though they all have in various degree light or biology, but major part also contains high molecular polymer, can not degrade fully, and be combined in polymeric material price comparison height with petroleum base, the agricultural mulching price also improves thereupon, cause agricultural cost to rise, empty with the raising of produce product price, production has considerable influence to developing agricultural.
The objective of the invention is to overcome some shortcomings of prior art, propose a kind of preparation method simply, not pbz polymer polymkeric substance and the low agricultural mulching of holding concurrently of the price that is easy to degrade.
Main technical schemes of the present invention: with the vegetable fibre is main raw material, and roller is gone into a spot of starch and water, is squeezed into required mulch film by screw extrusion press commonly used.
The composition of film of the present invention and content thereof (is 100 in composition weight):
Vegetable fibre 80-90%, starch 5-15%, water 3-5%.
Described vegetable fibre comprises straw, rice straw and cornstalk.
Described starch comprises W-Gum, wheat starch, tapioca (flour), legume starch.
The preparation method of mulch film of the present invention:
(1) will go root, straw, rice straw or the cornstalk with leaf is crushed to the 0.2-1.2 order slightly;
(2) agricultural crop straw of being pulverized by (1) step and starch, water are in given ratio stirring and evenly mixing;
(3) be squeezed into required mulch film in the compound input screw extrusion press with (2) step, extrusion temperature is controlled in 85-95 ℃.
Described screw extrusion press is single screw rod commonly used or twin screw extruder.
Major advantage of the present invention: the mulch film heat retaining property that makes by prescription of the present invention and breathing freely, intensity and transmittance and polyethylene film are suitable; Raw material all is to be obtained by plant, and without any synthetic polymer dimerization thing, the depleted mulch film is i.e. degraded in 20 days in soil, and resolves into organic fertilizer, can be used as farm crop base fertilizer; Because vegetable fibre coloured silk of the present invention is low modest cornstalk, straw, the rice straw of price, therefore the mulch film product of producing is cheap, and the peasant is easy to accept; Preparation method of the present invention is fairly simple, only needs once can be extruded into through screw extrusion press the mulch film of desired thickness.Mulch film of the present invention can be used for comprising in the vegetable melon and fruit of eggplant, cucumber, watermelon and some cash crop.
Further specify characteristics of the present invention with example below.
Example 1
With importing single screw extrusion machine behind the cornstalk 82kg, the W-Gum 15kg that pulverize, the water 3kg mixing, under 85 ± 5 ℃, squeeze out the mulch film of desired thickness.
Test at 1 mu of corn field: after planting, 0.8 mu of topped above-mentioned mulch film wherein, 0.2 mu does not have topped any film, and 0.8 mu of ground of the topped mulch film of result promptly germinateed in 5 days, and 0.2 mu of ground just germinates after 7 days successively in addition.The depleted mulch film is put in the ground, runs into rainwater, is degradable after 13 days, the taste of the organic fertilizer that smelling significantly after 20 days ferments decomposites.
Example 2
Used raw material: wheat-straw 90kg, W-Gum 5kg, water 5kg.Method with example 1 obtains yellowish translucent mulch film.
This mulch film is used to cultivate the watermelon rice shoot, can shift to an earlier date 5-7 days and sprout, 20 days degradables.
Claims (4)
1. an agricultural mulching is characterized in that composition and content thereof (is 100 in composition weight): vegetable fibre 80-90%, starch 5-15%, water 3-5%.
2. according to the described mulch film of claim 1, it is characterized in that described vegetable fibre comprises cornstalk, straw, rice straw.
3. according to the described mulch film of claim 1, it is characterized in that described starch comprises W-Gum, wheat starch, sweet potato starch, legume starch.
4. the preparation method of the described mulch film of claim 1 is characterized in that preparation process is followed successively by:
(1) will go root, be crushed to the 0.2-1.2 order with leaf and straw, rice straw or cornstalk slightly;
(2) stalk of being pulverized by (1) step and starch, water are in given ratio stirring and evenly mixing;
(3) with in (2) step compound input spiral shell stalk forcing machine, under 85-95 ℃, be squeezed into required mulch film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100038A CN1092219C (en) | 1998-01-16 | 1998-01-16 | Farm land mulch filma nd preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100038A CN1092219C (en) | 1998-01-16 | 1998-01-16 | Farm land mulch filma nd preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1223280A true CN1223280A (en) | 1999-07-21 |
| CN1092219C CN1092219C (en) | 2002-10-09 |
Family
ID=5215761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98100038A Expired - Fee Related CN1092219C (en) | 1998-01-16 | 1998-01-16 | Farm land mulch filma nd preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1092219C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001005892A1 (en) * | 1999-07-21 | 2001-01-25 | Young Bok Kim | Manufacturing method of substitute goods for plastic which made from natural materials |
| US6475416B2 (en) | 2000-07-06 | 2002-11-05 | Young Bok Kim | Method for manufacturing plastic-substitute goods by using natural materials |
| FR2826832A1 (en) * | 2001-07-09 | 2003-01-10 | Linda Thomas | Grape vine trellis fastener is molded from thermoplastic with butadiene rubber and vegetable substance to make it more photodegradable |
| CN1127891C (en) * | 2000-05-23 | 2003-11-19 | 李小鲁 | New-type double material agricultural mulch film and its preparation method |
| EP1481778A4 (en) * | 2002-03-05 | 2005-05-11 | Dainippon Pharmaceutical Co | Process for producing biodegradable fiber molding |
| CN102161796A (en) * | 2011-06-01 | 2011-08-24 | 刘立文 | Modified high-density polyethylene composite material and preparation method thereof |
| CN107523080A (en) * | 2017-09-06 | 2017-12-29 | 中国科学院长春应用化学研究所 | A kind of increased surface covering and preparation method thereof |
| CN109293995A (en) * | 2018-08-23 | 2019-02-01 | 贵州省烟草公司黔西南州公司 | A kind of degradable mulch and preparation method thereof |
| CN110870429A (en) * | 2018-09-04 | 2020-03-10 | 魏颖 | Green agricultural mulching film and preparation method thereof |
| CN114933743A (en) * | 2022-05-31 | 2022-08-23 | 杜英杰 | Degradable mulching film and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095388A (en) * | 1993-05-20 | 1994-11-23 | 河南郑州农村经济技术开发实业中心 | Method of production of agriculture film with corn stalk |
| CN1104656A (en) * | 1993-12-31 | 1995-07-05 | 中国科学院兰州化学物理研究所 | Biodegradable films and their production |
| CN1165735A (en) * | 1997-04-29 | 1997-11-26 | 河北京狮草纤维制品有限公司 | Method for prodn. of grass fibre adhesive film |
-
1998
- 1998-01-16 CN CN98100038A patent/CN1092219C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001005892A1 (en) * | 1999-07-21 | 2001-01-25 | Young Bok Kim | Manufacturing method of substitute goods for plastic which made from natural materials |
| CN1127891C (en) * | 2000-05-23 | 2003-11-19 | 李小鲁 | New-type double material agricultural mulch film and its preparation method |
| US6475416B2 (en) | 2000-07-06 | 2002-11-05 | Young Bok Kim | Method for manufacturing plastic-substitute goods by using natural materials |
| FR2826832A1 (en) * | 2001-07-09 | 2003-01-10 | Linda Thomas | Grape vine trellis fastener is molded from thermoplastic with butadiene rubber and vegetable substance to make it more photodegradable |
| EP1481778A4 (en) * | 2002-03-05 | 2005-05-11 | Dainippon Pharmaceutical Co | Process for producing biodegradable fiber molding |
| CN102161796A (en) * | 2011-06-01 | 2011-08-24 | 刘立文 | Modified high-density polyethylene composite material and preparation method thereof |
| CN107523080A (en) * | 2017-09-06 | 2017-12-29 | 中国科学院长春应用化学研究所 | A kind of increased surface covering and preparation method thereof |
| CN107523080B (en) * | 2017-09-06 | 2020-03-13 | 中国科学院长春应用化学研究所 | Ground surface covering and preparation method thereof |
| CN109293995A (en) * | 2018-08-23 | 2019-02-01 | 贵州省烟草公司黔西南州公司 | A kind of degradable mulch and preparation method thereof |
| CN110870429A (en) * | 2018-09-04 | 2020-03-10 | 魏颖 | Green agricultural mulching film and preparation method thereof |
| CN114933743A (en) * | 2022-05-31 | 2022-08-23 | 杜英杰 | Degradable mulching film and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1092219C (en) | 2002-10-09 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |