CN108834692A - A method of environment-friendly type fiber crops mulch is prepared using lapping-hot pressing composite algorithm - Google Patents
A method of environment-friendly type fiber crops mulch is prepared using lapping-hot pressing composite algorithm Download PDFInfo
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- CN108834692A CN108834692A CN201810428844.4A CN201810428844A CN108834692A CN 108834692 A CN108834692 A CN 108834692A CN 201810428844 A CN201810428844 A CN 201810428844A CN 108834692 A CN108834692 A CN 108834692A
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- 239000000835 fiber Substances 0.000 title claims abstract description 43
- 238000007731 hot pressing Methods 0.000 title claims abstract description 36
- 239000002362 mulch Substances 0.000 title claims abstract description 35
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000008107 starch Substances 0.000 claims abstract description 31
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229920002472 Starch Polymers 0.000 claims abstract description 28
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 28
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 28
- 235000019698 starch Nutrition 0.000 claims abstract description 28
- 235000011777 Corchorus aestuans Nutrition 0.000 claims abstract description 16
- 235000010862 Corchorus capsularis Nutrition 0.000 claims abstract description 16
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 240000004792 Corchorus capsularis Species 0.000 claims description 5
- 240000000491 Corchorus aestuans Species 0.000 abstract description 11
- 239000012528 membrane Substances 0.000 abstract description 9
- 230000015556 catabolic process Effects 0.000 abstract description 7
- 238000006731 degradation reaction Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000002985 plastic film Substances 0.000 abstract description 4
- 229920006255 plastic film Polymers 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 230000000754 repressing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 244000198134 Agave sisalana Species 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- -1 hydroxy silicate Chemical compound 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 235000011624 Agave sisalana Nutrition 0.000 description 2
- 229920000881 Modified starch Polymers 0.000 description 2
- 239000004368 Modified starch Substances 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000019426 modified starch Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/716—Degradable
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Protection Of Plants (AREA)
Abstract
Lapping-hot pressing composite algorithm preparation environment-friendly type fiber crops mulch method is utilized the invention discloses a kind of, which is characterized in that by the removal of impurities of jute noil fiber opening, combing, obtains the thin net of tossa；By the thin net of tossa cross lapping in length and breadth, hot-pressing processing is carried out with starch/LDPE film；Organosilicon waterproof coating, hot repressing light processing are sprayed on film.In the present invention starch/LDPE film Starch Fraction can complete natural degradation, LDPE part at high temperature can be melt bonded, without adding adhesive, obtained mulch environment-friendly degradable.Meanwhile flaxen fiber is at low cost, mechanical property is good, composite membrane has excellent mechanical property, makes full use of the discarded noil of jute mill to be prepared for low cost, degradable numb mulch, solves the problems, such as the difficult to degrade of plastic film.
Description
Technical field
The present invention relates to a kind of methods of numb mulch that environment-friendly type degradable is prepared using lapping-hot pressing composite algorithm, belong to
Agricultural mulching technical field.
Background technique
Plastic film has the effects that promote crop growth, increases yield, heat and moisture preserving, insect prevention, is widely used in existing
Generation agricultural.But plastic film is difficult natural degradation, seriously pollutes environment；In addition, remaining in farmland after will cause soil
Structure is destroyed, and crop growthing development is influenced.
Currently, studies in China personnel are dedicated to developing degradable mulch, but there are still biggish limitations.As light degradation is moulded
Material film can only degrade in the sunlight, but be difficult to control degradation rate, and be embedded to underground and be no different with common plastics mulch；Biodegrade
Mulch, such as polylactic acid mulch, cost is too high, can not promote the use of.Therefore, developing low-cost, can the mulch of natural degradation be one
The work that item is of practical significance with application value very much.
China's hemp resource is abundant, and the development with science and technology with the improvement of people ' s living standards, Bast Fiber Textiles
Type increases, and resulting crudefiber crop waste material also increases, and therefore, the ring of low cost is manufactured using the noil fiber that jute mill discards
Guarantor's type fiber crops mulch is conducive to make full use of flaxen fiber, reduces the wasting of resources, has weight to the sustainable development of China's fiber crops planting industry
Meaning is wanted, the attention of Minister Agriculture of China is received.
The patent of invention " environment-friendly type fiber crops mulch and its manufacturing process " of publication number CN1559176, it is gentle using combing networking
The secondary net-forming process of networking is flowed, fibrilia net is made, by its chemical adhesion at flaxen fiber film, water-proofing treatment is carried out to flaxen fiber film
And satinage, so that fiber crops mulch be made.Film made from the invention is harder, can only be used as seedling film, can not be as covering mulch
It uses；Simultaneously as water-proofing treatment uses organic fluorine coating, residuals can generate danger to crops and human body
Evil.
The patent of invention " sisal fiber enhances environmental protection starch mulch and preparation method thereof " of publication number CN107189108A, makes
With graft modified starch, modified sisal hemp, type low density polyethylene resin and other auxiliary agents, the side being blow molded using melting extrusion
Method is prepared for sisal fiber enhancing Environment protection mulch film.The invention need to be modified starch, sisal hemp, complex process, higher cost,
It is difficult to promote the use of.
Summary of the invention
The technical problem to be solved by the present invention is to：Existing agricultural mulching quality is harder, pollute environment, complex process, at
The problems such as this is high.
To solve the above-mentioned problems, the technical solution adopted by the present invention is as follows：
A method of environment-friendly type fiber crops mulch is prepared using lapping-hot pressing composite algorithm, which is characterized in that including following step
Suddenly：
Step 1)：Jute noil fiber opening is cleaned；
Step 2)：Noil fiber combing after shredding is cleaned, obtains the thin net of tossa；
Step 3)：By the thin net of tossa cross lapping in length and breadth, the fibrilia net being evenly distributed；
Step 4)：Fibrilia net and starch/LDPE film are subjected to hot-pressing processing；
Step 5)：Organosilicon waterproof coating is sprayed on the film made from step 4)；
Step 6)：Film made from step 4) is subjected to hot pressing light processing.
Preferably, the fibrilia net in the step 4) and the mass content of starch in starch/LDPE film are 65-75%,
The mass content that LDPE contains is 25-35%.
Preferably, in the step 4) when hot-pressing processing, upper layer and lower layer are fibrilia net, one layer of centre is starch/LDPE
Film.
Preferably, the temperature of hot-pressing processing is 120-130 DEG C, pressure 2-6MPa, time 120- in the step 4)
300s。
The raw material that the present invention uses is that jute mill discards noil and starch/LDPE film.Discarded noil distribution of lengths is wide, long fine
Dimension can be greater than 20mm, and staple fiber some be only 1-2mm, middle short fiber may not apply to lapping.It is prepared using noil fiber
Mulch it is relatively thin, good permeability, mechanical property is good, but membrane micropore is more causes heat insulation effect poor.The degradation of starch/LDPE film and
Heat insulation effect is preferable, but poor mechanical property, cracky.The present invention is first by tossa networking, then in length and breadth by tossa net
Cross lapping obtains the fibrilia net of certain grammes per square metre, and the fibrilia net of different grammes per square metres is hot-pressed onto starch/LDPE film, can be obtained
To different reinforcing effects.
The present invention uses the compound fibrilia net of pressure sintering and starch/LDPE film, the portion LDPE under high temperature in starch/LDPE film
Divide and play melt bonded effect, no longer needs to addition adhesive.Using upper layer and lower layer fibrilia net, the one layer of starch/LDPE in centre
" sandwich " composite algorithm of film, obtained composite membrane flaxen fiber are evenly distributed, good mechanical properties, and have preferable heat preservation
Effect and gas permeability, the advantages of two kinds of films can be given full play to.
To make mulch have excellent waterproofness, the present invention carries out the processing of organosilyl surface waterproof coating, the painting to mulch
Layer is harmless and environmentally friendly.
The raw material that the present invention uses is discarded noil and starch/LDPE film, has accomplished recycling for bast fibre spinning waste, is led to
It crosses that jute is discarded noil by compound embrane method and starch/LDPE film is combined with each other, has both effectively enhanced starch/LDPE film mechanics
Performance solves starch/LDPE film dynamic performance defect, but have the advantages that low cost, can natural degradation.This method operation
The advantages of simplicity is easily implemented, and the mulch prepared has plastic film and numb mulch concurrently, has the sustainable development of China's agricultural
Significance.
Specific embodiment
In order to make the present invention more obvious and understandable, it is hereby described in detail below with preferred embodiment.
Embodiment 1
A method of environment-friendly type fiber crops mulch is prepared using lapping-hot pressing composite algorithm：
Jute mill jute is discarded into noil and first carries out shredding removal of impurities processing, is then combed, it is thin to obtain uniform fiber
Fibrous web is paved into 10g/m by net in transmission net2Tossa net.By a 10g/m2Tossa net laterally put
It sets, is laid in vulcanizer hot pressing area in the following, being then 16.4g/m by grammes per square metre2Starch/LDPE film (starch quality content is
70%, LDPE mass content are 30%) to be placed on above jute fibre web, another 10g/m2Jute fibre web it is placed longitudinally, paving
On starch film.It is 120 DEG C, hot pressing pressure 2MPa, hot pressing time 120s that hot pressing temperature, which is arranged, in vulcanizing press, hot pressing
Composite membrane is made.By the organic hydroxy silicate sprayed surface of composite membrane mass concentration 20%, dosage 6mL/m2, most afterwards through 120
DEG C press polish rod press polish obtain finished product mulch.
Embodiment 2
A method of environment-friendly type fiber crops mulch is prepared using lapping-hot pressing composite algorithm：
Jute mill jute is discarded into noil and first carries out shredding removal of impurities processing, is then combed, it is thin to obtain uniform fiber
Fibrous web is paved into 15g/m by net in transmission net2Tossa net.By a 15g/m2Tossa net laterally put
It sets, is laid in vulcanizer hot pressing area in the following, being then 16.4g/m by grammes per square metre2Starch/LDPE film (starch quality content is
65%, LDPE mass content are 35%) to be placed on above jute fibre web, another 15g/m2Jute fibre web it is placed longitudinally, paving
On starch film.It is 125 DEG C, hot pressing pressure 4MPa, hot pressing time 180s that hot pressing temperature, which is arranged, in vulcanizing press, hot pressing
Composite membrane is made.By the organic hydroxy silicate sprayed surface of composite membrane mass concentration 20%, dosage 6mL/m2, most afterwards through 120
DEG C press polish rod press polish obtain finished product mulch.
Embodiment 3
A method of environment-friendly type fiber crops mulch is prepared using lapping-hot pressing composite algorithm：
Jute mill jute is discarded into noil and first carries out shredding removal of impurities processing, is then combed, it is thin to obtain uniform fiber
Fibrous web is paved into 20g/m by net in transmission net2Tossa net.By a 20g/m2Tossa net laterally put
It sets, is laid in vulcanizer hot pressing area in the following, being then 16.4g/m by grammes per square metre2Starch/LDPE film (starch quality content is
75%, LDPE mass content are 25%) to be placed on above jute fibre web, another 20g/m2Jute fibre web it is placed longitudinally, paving
On starch film.It is 130 DEG C, hot pressing pressure 6MPa, hot pressing time 300s that hot pressing temperature, which is arranged, in vulcanizing press, hot pressing
Composite membrane is made.By the organic hydroxy silicate sprayed surface of composite membrane mass concentration 20%, dosage 8mL/m2, most afterwards through 130
DEG C press polish rod press polish obtain finished product mulch.
Environment-friendly type fiber crops mulch product made from embodiment 1-3 is subjected to correlation test, test result is as shown in table 1.
Table 1
| Performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Common ground film |
| Thickness (mm) | 0.19 | 0.199 | 0.211 | 0.108 |
| Grammes per square metre (g/m2) | 35.85 | 47.49 | 56.35 | 16.75 |
| Tensile strength (N/m) | 820 | 1030 | 1320 | 210 |
| Tearing strength (N) | 5.87 | 7.96 | 10.69 | 1.6 |
| Bursting strength (N) | 36.64 | 49.24 | 58.93 | 11.5 |
| Air penetrability (mm/s) | 17.08 | 14.23 | 12.23 | 0 |
Note：Common ground film uses the PE mulch of Baoding Bao Chuan agricultural film Science and Technology Ltd. production；Measuring instrument is：It is thick
Degree：YG141N digital textile thickness gauge；Grammes per square metre：FA2004A electronic balance；Tensile strength：YG026MB-250 electronics strength
Instrument；Tearing strength：YG026MB-250 electronics strength tester；Bursting strength：YG026MB-250 electronics strength tester；Air penetrability：
YG461E air permeability tester.
Claims (4)
1. a kind of utilize lapping-hot pressing composite algorithm preparation environment-friendly type fiber crops mulch method, which is characterized in that include the following steps：
Step 1)：Jute noil fiber opening is cleaned；
Step 2)：Noil fiber combing after shredding is cleaned, obtains the thin net of tossa；
Step 3)：By the thin net of tossa cross lapping in length and breadth, the fibrilia net being evenly distributed；
Step 4)：Fibrilia net and starch/LDPE film are subjected to hot-pressing processing；
Step 5)：Organosilicon waterproof coating is sprayed on the film made from step 4)；
Step 6)：Film made from step 4) is subjected to hot pressing light processing.
2. utilizing lapping-hot pressing composite algorithm preparation environment-friendly type fiber crops mulch method as described in claim 1, which is characterized in that
The mass content of starch is 65-75%, the mass content that LDPE contains in fibrilia net and starch/LDPE film in the step 4)
For 25-35%.
3. utilizing lapping-hot pressing composite algorithm preparation environment-friendly type fiber crops mulch method as described in claim 1, which is characterized in that
In the step 4) when hot-pressing processing, upper layer and lower layer are fibrilia net, one layer of centre is starch/LDPE film.
4. utilizing lapping-hot pressing composite algorithm preparation environment-friendly type fiber crops mulch method as described in claim 1, which is characterized in that
The temperature of hot-pressing processing is 120-130 DEG C, pressure 2-6MPa, time 120-300s in the step 4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428844.4A CN108834692A (en) | 2018-05-07 | 2018-05-07 | A method of environment-friendly type fiber crops mulch is prepared using lapping-hot pressing composite algorithm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428844.4A CN108834692A (en) | 2018-05-07 | 2018-05-07 | A method of environment-friendly type fiber crops mulch is prepared using lapping-hot pressing composite algorithm |
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| Publication Number | Publication Date |
|---|---|
| CN108834692A true CN108834692A (en) | 2018-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109566214A (en) * | 2019-01-07 | 2019-04-05 | 东华大学 | A kind of degradable agricultural film and preparation method thereof |
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2018
- 2018-05-07 CN CN201810428844.4A patent/CN108834692A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109566214A (en) * | 2019-01-07 | 2019-04-05 | 东华大学 | A kind of degradable agricultural film and preparation method thereof |
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