CN112322006A - 碳纤维改性聚乳酸农地膜及其制备方法 - Google Patents
碳纤维改性聚乳酸农地膜及其制备方法 Download PDFInfo
- Publication number
- CN112322006A CN112322006A CN202011221906.8A CN202011221906A CN112322006A CN 112322006 A CN112322006 A CN 112322006A CN 202011221906 A CN202011221906 A CN 202011221906A CN 112322006 A CN112322006 A CN 112322006A
- Authority
- CN
- China
- Prior art keywords
- polylactic acid
- carbon fiber
- mulching film
- agricultural mulching
- parts
- 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.)
- Pending
Links
- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 60
- 239000004626 polylactic acid Substances 0.000 title claims abstract description 60
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 52
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 52
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920002472 Starch Polymers 0.000 claims abstract description 16
- 239000008107 starch Substances 0.000 claims abstract description 16
- 235000019698 starch Nutrition 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000010096 film blowing Methods 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 9
- 238000005491 wire drawing Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 229920002261 Corn starch Polymers 0.000 claims description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 4
- 238000007605 air drying Methods 0.000 claims description 4
- 239000008120 corn starch Substances 0.000 claims description 4
- 230000001804 emulsifying effect Effects 0.000 claims description 4
- 239000008103 glucose Substances 0.000 claims description 4
- 239000004310 lactic acid Substances 0.000 claims description 4
- 235000014655 lactic acid Nutrition 0.000 claims description 4
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 claims description 4
- 230000000379 polymerizing effect Effects 0.000 claims description 4
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 2
- 238000000071 blow moulding Methods 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 238000005453 pelletization Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 238000006731 degradation reaction Methods 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000009333 weeding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
本发明属于生态农业新材料技术领域,具体涉及一种碳纤维改性聚乳酸农地膜及其制备方法。所述的碳纤维改性聚乳酸农地膜,由以下重量份数的原料制成:聚乳酸80‑90份,淀粉10‑15份,碳纤维1‑3份,本发明采用碳纤维改性聚乳酸,碳纤维自身有导电性,所以农地膜具有良好的防静电性,防止农地膜吸附灰尘,农地膜自身清洁性高,碳纤维有吸收阳光的能力,农地膜内的温度较普通农地膜能提高2‑3℃,有利于禾苗的快速生长,聚乳酸和淀粉都是降解材料,300天左右能100%降解成二氧化碳和水,本碳纤维改性聚乳酸农地膜绿色环保,属生态农业,是每年500万吨聚乙烯农地膜的换代产品。
Description
技术领域
本发明属于生态农业新材料技术领域,具体涉及一种碳纤维改性聚乳酸农地膜及其制备方法。
背景技术
聚乙烯农地膜具有保湿、除草、防虫、保温等优点,广泛的用于育苗育秧行业,聚乙烯农地膜是高分子材料,聚乙烯农地膜每年用量约500万吨,育苗后不能回收,年年育苗,聚乙烯农地膜500年不能降解,对环境造成污染,影响土壤土质。本发明碳纤维改性聚乳酸农地膜,在聚乙烯农地膜的基础上,还有防静电,防灰尘,吸收阳光,提高温度,自然降解,绿色环保的优点,有新旧动能转化的价值,有生态农业的优势。
发明内容
本发明要解决的技术问题是,提供一种碳纤维改性聚乳酸农地膜,既有良好的育苗育秧作用,又有绿色环保生态平衡的优点,同时本发明还提供其制备方法,科学合理,简单易操作。
本发明所述的碳纤维改性聚乳酸农地膜,由以下重量份数的原料制成:
聚乳酸 80-90份
淀粉 10-15份
碳纤维 1-3份。
优选地,所述的碳纤维改性聚乳酸农地膜,由以下重量份数的原料制成:
聚乳酸 85份
淀粉 13.5份
碳纤维 1.5份。
其中,所述的聚乳酸采用以下步骤制得:以玉米淀粉为源头基料→水解葡萄糖→乳化为乳酸→丙交酯→聚合为聚乳酸。这种聚乳酸加工性好,透明度高,300天左右能够全部降解。
本发明所述的碳纤维改性聚乳酸农地膜的制备方法,包括以下步骤:
(1)配料
将聚乳酸、淀粉和碳纤维,按比例混合均匀后,得到混料,备用;
(2)造粒
将制得的混料经双螺杆挤出造粒机,拉丝造粒,得到母粒;
(3)吹膜成型
将制得的母粒经吹膜机吹膜成型,即得碳纤维改性聚乳酸农地膜。
步骤(1)中混合搅拌转速为100-150转/分钟,搅拌温度为30-50℃,搅拌时间为20-40min。
步骤(2)中挤出拉丝温度为210-220℃,水冷温度为10-20℃,切粒温度为20-30℃。
步骤(3)中吹膜挤出温度为200-220℃,风机功率为2.2kW,吹膜风量为200立方/分钟。
优选地,本发明所述的碳纤维改性聚乳酸农地膜的制备方法,包括以下步骤:
(1)配料:将聚乳酸、淀粉和碳纤维,按比例配料,采用不锈钢混料器,在40℃,120转/分钟,搅拌30分钟,得到混料,备用;
(2)造粒:采用平行双螺杆挤出机,配双级真空泵,真空度达到-0.9,配5孔模具,孔径5mm,经拉丝→水冷→风干→切粒,得到母粒;
(3)吹膜:采用吹膜机,加工温度215℃,智能风机功率2.2kW,吹膜风量200立方/分钟,旋转吹膜模头,直径800mm,吹膜风量200立方/分钟,吹膜高度50m,吹膜的宽度1000mm,吹膜成型得到农地膜厚度0.015mm,长度300m一卷,卷芯45mm,方便使用。
与现有技术相比,本发明的有益效果如下:
1、本发明碳纤维改性聚乳酸农地膜,采用聚乳酸、淀粉、碳纤维为原料,采用碳纤维对聚乳酸进行改性制得的农地膜有保湿、吸热、保温、除草、防虫等优点,碳纤维自身具有导电性,使得农地膜具有良好的防静电性,防止农地膜吸附灰尘,农地膜自身清洁性高,碳纤维有吸收阳光的能力,农地膜内的温度较普通农地膜能提高2-3℃,有利于禾苗的快速生长,可作为传统聚乙烯农地膜的换代产品;
2、本发明碳纤维改性聚乳酸农地膜,聚乳酸和淀粉均为降解材料,300天左右可100%降解成二氧化碳和水,每年为自然减少500万吨塑料农地膜的污染,绿色环保维护生态平衡。
具体实施方式
下面结合实施例对本发明做进一步的说明。
实施例中用到的所有原料若无特殊说明,均为市购。
实施例1
所述的碳纤维改性聚乳酸农地膜,由以下重量份数的原料制成:
聚乳酸 85份
淀粉 13.5份
碳纤维 1.5份。
所述的聚乳酸采用以下步骤制得:以玉米淀粉为源头基料→水解葡萄糖→乳化为乳酸→丙交酯→聚合为聚乳酸。
所述的碳纤维改性聚乳酸农地膜的制备方法,包括以下步骤:
(1)配料:将聚乳酸、淀粉、碳纤维,按比例配料,用500升不锈钢混料器,在40℃,120转/分钟,搅拌30分钟备用;
(2)造粒:75型平行双螺杆挤出机,配双级真空泵,真空度达到-0.9,配5孔模具,孔径5mm,经拉丝→水冷→风干→切粒,得到母粒,挤出拉丝温度为215℃,水冷温度为20℃,切粒温度为25℃;
(3)吹膜:采用60型吹膜机,加工温度215℃,智能风机功率2.2kW,吹膜风量200立方/分钟,旋转吹膜模头,直径800mm,吹膜风量200立方/分钟,吹膜高度50m,吹膜的宽度1000mm,农地膜厚度0.015mm,长度300m一卷,卷芯45mm,制得碳纤维改性聚乳酸农地膜。
实施例2
所述的碳纤维改性聚乳酸农地膜,由以下重量份数的原料制成:
聚乳酸 83份
淀粉 15份
碳纤维 2.0份。
所述的聚乳酸采用以下步骤制得:以玉米淀粉为源头基料→水解葡萄糖→乳化为乳酸→丙交酯→聚合为聚乳酸。
所述的碳纤维改性聚乳酸农地膜的制备方法,包括以下步骤:
(1)配料:将聚乳酸、淀粉、碳纤维,按比例配料,用500升不锈钢混料器,在40℃,120转/分钟,搅拌30分钟备用;
(2)造粒:75型平行双螺杆挤出机,配双级真空泵,真空度达到-0.9,配5孔模具,孔径5mm,经拉丝→水冷→风干→切粒,得到母粒,挤出拉丝温度为215℃,水冷温度为20℃,切粒温度为25℃;
(3)吹膜:采用60型吹膜机,加工温度215℃,智能风机功率2.2kW,吹膜风量200立方/分钟,旋转吹膜模头,直径800mm,吹膜风量200立方/分钟,吹膜高度50m,吹膜的宽度1000mm,农地膜厚度0.015mm,长度300m一卷,卷芯45mm,制得碳纤维改性聚乳酸农地膜。
对比例
以现有的聚乙烯农地膜为对比例。
性能测试
将实施例1-2和对比例的农地膜产品在相同条件下进行降解性能测试,将农地膜产品均埋于地下,深埋1年后检测样品降解程度,性能测试结果见表1。
表1实施例1-2和对比例制品降解性能
项目 | 实施例1 | 实施例2 | 对比例 |
降解程度 | 100%降解 | 100%降解 | 完全没降解 |
采用透氧仪8001测定氧气透过系数,利用透湿仪Permatrn-w3/61,测定水蒸气透过系数,将实施例1-2和对比例的农地膜产品在常温干燥条件下进行氧气透过系数检测,在常温与相对湿度60±5%环境下检测水蒸气透过系数,检测结果见表2。
表2实施例1-2和对比例制品性能
从上述表1-2可见,本发明制备的碳纤维改性聚乳酸农地膜,与传统的聚乙烯农地膜相比,不仅能够完全降解,还更好的保温、保湿。
当然,上述内容仅为本发明的较佳实施例,不能被认为用于限定对本发明的实施例范围。本发明也并不仅限于上述举例,本技术领域的普通技术人员在本发明的实质范围内所做出的均等变化与改进等,均应归属于本发明的专利涵盖范围内。
Claims (8)
1.一种碳纤维改性聚乳酸农地膜,其特征在于:由以下重量份数的原料制成:
聚乳酸 80-90份
淀粉 10-15份
碳纤维 1-3份。
2.根据权利要求1所述的碳纤维改性聚乳酸农地膜,其特征在于:由以下重量份数的原料制成:
聚乳酸 85份
淀粉 13.5份
碳纤维 1.5份。
3.根据权利要求1所述的碳纤维改性聚乳酸农地膜,其特征在于:所述的聚乳酸采用以下步骤制得:以玉米淀粉为源头基料→水解葡萄糖→乳化为乳酸→丙交酯→聚合为聚乳酸。
4.一种权利要求1-3所述的碳纤维改性聚乳酸农地膜的制备方法,其特征在于:包括以下步骤:
(1)配料
将聚乳酸、淀粉和碳纤维,按比例混合均匀后,得到混料,备用;
(2)造粒
将制得的混料经双螺杆挤出造粒机,拉丝→水冷→风干→切粒,得到母粒;
(3)吹膜成型
将制得的母粒经吹膜机吹膜成型,即得碳纤维改性聚乳酸农地膜。
5.根据权利要求4所述的碳纤维改性聚乳酸农地膜的制备方法,其特征在于:步骤(1)中混合搅拌转速为100-150转/分钟,搅拌温度为30-50℃,搅拌时间为20-40min。
6.根据权利要求4所述的碳纤维改性聚乳酸农地膜的制备方法,其特征在于:步骤(2)中挤出拉丝温度为210-220℃,水冷温度为10-20℃,切粒温度为20-30℃。
7.根据权利要求4所述的碳纤维改性聚乳酸农地膜的制备方法,其特征在于:步骤(3)中吹膜挤出温度为200-220℃,风机功率为2.2kW,吹膜风量为200立方/分钟。
8.根据权利要求4所述的碳纤维改性聚乳酸农地膜的制备方法,其特征在于:碳纤维改性聚乳酸农地膜厚度0.015mm,宽度1000mm,长度300m。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011221906.8A CN112322006A (zh) | 2020-11-05 | 2020-11-05 | 碳纤维改性聚乳酸农地膜及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011221906.8A CN112322006A (zh) | 2020-11-05 | 2020-11-05 | 碳纤维改性聚乳酸农地膜及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112322006A true CN112322006A (zh) | 2021-02-05 |
Family
ID=74316019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011221906.8A Pending CN112322006A (zh) | 2020-11-05 | 2020-11-05 | 碳纤维改性聚乳酸农地膜及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112322006A (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013023576A (ja) * | 2011-07-21 | 2013-02-04 | Idemitsu Unitech Co Ltd | 生分解性樹脂組成物、生分解性発泡シートの製造方法、生分解性発泡シート、および生分解性発泡成形体 |
CN107189377A (zh) * | 2017-06-14 | 2017-09-22 | 合肥助航生态农业科技有限公司 | 生物可降解地膜及其制备方法 |
CN111607205A (zh) * | 2020-06-04 | 2020-09-01 | 安徽袋中袋环保科技有限公司 | 一种聚乳酸可降解垃圾袋及其制备方法 |
-
2020
- 2020-11-05 CN CN202011221906.8A patent/CN112322006A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013023576A (ja) * | 2011-07-21 | 2013-02-04 | Idemitsu Unitech Co Ltd | 生分解性樹脂組成物、生分解性発泡シートの製造方法、生分解性発泡シート、および生分解性発泡成形体 |
CN107189377A (zh) * | 2017-06-14 | 2017-09-22 | 合肥助航生态农业科技有限公司 | 生物可降解地膜及其制备方法 |
CN111607205A (zh) * | 2020-06-04 | 2020-09-01 | 安徽袋中袋环保科技有限公司 | 一种聚乳酸可降解垃圾袋及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106046725A (zh) | 一种高阻隔性生物可降解地膜及其制备方法 | |
CN102850626B (zh) | 一种可降解地膜及其制备方法 | |
CN110283433B (zh) | 一种全生物降解地膜及其制备方法和应用 | |
CN106543668A (zh) | 一种生物降解黑色地膜及其制备方法 | |
Dang et al. | The preparation and applications of one biodegradable liquid film mulching by oxidized corn starch-gelatin composite | |
JP2004517203A (ja) | 光分解性及び生分解性プラスチック製品用の多成分組成物及びその使用 | |
CN108314805A (zh) | 可降解气相果蔬保鲜膜及其制备方法 | |
CN102942770A (zh) | 一种可完全生物降解的农用地膜 | |
CN111742748B (zh) | 一种硼氮磷缓释复合肥生物降解营养钵及制备方法与应用 | |
CN109306162A (zh) | 一种可降解多功能农用地膜 | |
CN110204871A (zh) | 一种用于制备全生物降解地膜的专用料的制备方法和降解地膜的制备方法 | |
CN114685955B (zh) | 一种可缓释施肥生物降解渗水地膜及其制备方法 | |
CN112063126A (zh) | 可完全生物降解的淀粉复合地膜及其制备方法 | |
AU2021104356A4 (en) | A Degradable Composite Film With The Effect Of Pesticide Adsorption Based On The Metal-Organic Framework Material | |
CN104877316A (zh) | 一种吸塑用聚乳酸复合材料片材及其制备方法 | |
CN114716697A (zh) | 一种生物降解塑料母料及由该母料制成的塑料 | |
CN112322006A (zh) | 碳纤维改性聚乳酸农地膜及其制备方法 | |
CN109467892B (zh) | 一种用于制备育苗容器的水溶致孔性完全生物降解复合材料及制备方法和基于其的育苗容器 | |
CN110105727A (zh) | 灌溉区农作物用全生物降解地膜材料及其制备方法与应用 | |
CN116253974A (zh) | 一种生物可降解除草地膜产品及其制备方法 | |
CN114479397B (zh) | 一种酒糟基全降解膜、其制备方法及应用 | |
CN118271804A (zh) | 一种全生物降解渗水地膜 | |
CN108164803A (zh) | 一种可多重降解的塑料地膜及其制备方法 | |
CN116023770A (zh) | 一种可控生物降解地膜及其制造方法 | |
CN113004665A (zh) | 一种抗菌防虫可降解农用地膜及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210205 |