CN109318563A - 乙烯-乙酸乙烯酯共聚物eva吹塑棚膜—草莓专用膜 - Google Patents
乙烯-乙酸乙烯酯共聚物eva吹塑棚膜—草莓专用膜 Download PDFInfo
- Publication number
- CN109318563A CN109318563A CN201811009682.7A CN201811009682A CN109318563A CN 109318563 A CN109318563 A CN 109318563A CN 201811009682 A CN201811009682 A CN 201811009682A CN 109318563 A CN109318563 A CN 109318563A
- Authority
- CN
- China
- Prior art keywords
- film
- master batch
- lldpe
- functional master
- layer
- 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
Classifications
-
- 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
-
- 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
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
- A01G9/1407—Greenhouses of flexible synthetic material
- A01G9/1415—Greenhouses of flexible synthetic material with double or multiple walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
本发明属于农用薄膜制造领域,具体涉及一种乙烯‑乙酸乙烯酯共聚物EVA吹塑棚膜—草莓专用膜。采用外层(抗紫外线耐老化层),中层(流滴保温层),内层(减雾流滴保温层)三层共挤吹塑工艺,外层:LDPE/LLDPE89~91%,母料A:7.9~8.1%,母料C:0.9~1.1%,母料D:0.9~1.1%;中层:EVA树脂84~86%,母料A:14~16%;内层:EVA树脂84~86%,母料B:14~16%;经对草莓专用膜的红外线透过率测试,普通PE膜的红外线透过率72%,EVA膜的红外线透过率44%,草莓膜的红外线透过率35%,在湿度低于40%时,产品流滴性能良好,满足了草莓种植所需的环境。
Description
技术领域
本发明属于农用薄膜制造领域,具体涉及一种乙烯-乙酸乙烯酯共聚物EVA吹塑棚膜—草莓专用膜。
背景技术
草莓属蔷薇科,多年生草本植物,在世界小浆果生产中,草莓荣居首位。草莓是结果快、成熟早、繁殖易、周期短、效益高的经济作物。使用塑料大棚栽培,可以使果实成熟期大大提前。草莓大棚需要控制适宜的温湿度,草莓果实发育的适温为18~25℃,棚温白天达到25~28℃,夜间5℃以上;土壤湿度以保持40%~60%为宜,过大会影响草莓根系活力和果实正常的生长发育。现在流行的PO膜(涂覆后流滴)在湿度30~40%时因棚膜内表面水少形不成水膜,产生局部白滴,使作物产生灰霉病或腐烂株叶。PO膜只有湿度达到60~70%以上才能形成水膜,保持流滴性。草莓专用膜具有良好的流滴减雾性,透光率高,增温效果好,防尘、防病、耐候等综合性能强。白天升温速度快,可减缓夜间棚温下降速度,提高棚内温度,是草莓大棚种植的首选覆棚材料。
目前,农用薄膜市场上的PO膜只有湿度达到60~70%以上才能形成水膜,具有流滴性。而草莓需要的土壤湿度40%~60%为宜,湿度过高则容易起灰霉病和白粉蛾。草莓大棚还需要定期进行硫磺熏蒸,一般4~5天一次,硫磺熏蒸对目前通常用的碱性光稳定剂产生受阻胺盐,从而失去光稳定作用,使棚膜提前老化。
发明内容
本发明的目的在于提供一种乙烯--乙酸乙烯酯共聚物(EVA)吹塑棚膜----草莓专用膜。具体技术方案如下;
草莓专用膜在配方设计上选用优质的低密度聚乙烯树脂、线型低密度聚乙烯树脂、EVA树脂以及复合保温剂、流滴剂、减雾剂、和低碱性光稳定剂。生产时采用低温塑化的加工工艺,经过反复调整试验,最终达到一个最佳的匹配比例,满足了产品的各项功能。
一种乙烯--乙酸乙烯酯共聚物EVA吹塑棚膜-草莓专用膜,采用三层共挤吹塑工艺,各层原料按质量百分比如下:
外层为抗紫外线防老化层:
线型低密度聚乙烯LDPE/线型低密度聚乙烯LLDPE:89~91%
功能母料A:7.9~8.1%,功能母料C:0.9~1.1%
功能母料D:0.9~1.1%
中层为流滴保温层:
EVA树脂(VA含量12%,MI=0.5~1.0g/min):84~86%
功能母料A:14~16%
内层为减雾流滴保温层):
EVA树脂(VA含量12%):84~86%,功能母料B:14~16%
所述的功能母料A为流滴保温类功能母料,各组分及质量百分数为
线型低密度聚乙烯LLDPE:39~41%,
EVA树脂 33~34%,
受阻胺光稳定剂 1.9~2.1%,
复合抗氧剂 0.9~1.1%,
流滴剂 14.9~15.1%,
水滑石复合保温剂 7.9~8.1%。
所述的功能母料B为减雾流滴保温类功能母料,各组分及质量百分数为
线型低密度聚乙烯粉料LLDPE:40~42%,
EVA树脂 33~34%,
低碱性受阻胺光稳定剂 1.9~2.1%,
复合抗氧剂 0.9~1.1%,
流滴剂 12.9~13.1%,
消雾剂 0.9~1.1%,
水滑石复合保温剂 7.9~8.1%。
所述的功能母料C为低碱性长寿类功能母料,各组分及质量百分数为
线型低密度聚乙烯粉料LLDPE:87~89%,
低碱性受阻胺光稳定剂 7.5~8.5%,
复合抗氧剂 3.5~4.5%。
所述的功能母料D为普通长寿类功能母料,各组分及质量百分数为
线型低密度聚乙烯粉料LLDPE:87~89%,
受阻胺光稳定剂 7.5~8.5%,
复合抗氧剂 3.5~4.5%。
功能母料的制备方法
按照配方,用电子秤准确地称量各种助剂。然后投放到密炼机加料口中,降下加压盖,混炼、捏合20~30分钟。混炼完成后经斗提将料团送入单螺杆挤出机中,依靠螺杆旋转产生的压力及剪切力,能使得物料可以充分进行塑化以及均匀混合,通过口模成型,经切粒机切粒成型,旋风分离器除湿,产出成品。
草莓专用膜制备方法
吹膜时采用三层共挤设备,机组共有三套挤出机。将各种聚乙烯树脂及母料加入混料缸中搅拌均匀,由吸料器倒入挤出机料斗中,通过挤出机塑化混炼,经模头挤出。内层由中心进料,中层和外层由侧面进料,原料混炼后经机头流道进一步均化,在特定的位置复合,形成三层不同原料组成的结合紧密、分层明显的管状料胚从机头口部挤出。通过控制内冷风机进、排风量,把管状料胚吹胀到所需要的直径,同时由内、外风环送出的空气冷却定型。定型的膜泡经过人字板和插板进入第一牵引装置,插板机构可将薄膜制品在进入牵引装置压辊之前进行折叠。为此,可减少收卷装置的体积以及成品膜卷的尺寸,方便产品的储存和运输。
本发明的有益效果
经对草莓专用膜的红外线透过率测试,普通PE膜的红外线透过率是72%,EVA膜的红外线透过率是44%,草莓膜的红外线透过率是35%,因此草莓专用膜保温性能更佳。在湿度低于40%时,产品流滴性能良好,符合设计预期,满足了草莓种植所需的环境。
具体实施方式
下面根据实施例对本发明作进一步说明。
实施例1
A、流滴保温类母料的制备:
低密度聚乙烯粉料(LLDPE):30.5kg
EVA树脂:25kg
胺光稳定剂(TH944):1.5kg
复合抗氧剂(B215):0.75kg
流滴剂(KF650):11.25kg
水滑石复合保温剂:6kg
B、低碱性减雾流滴保温类母料的制备:
低密度聚乙烯粉料(LLDPE):31.5kg
EVA树脂:25kg
低碱性受阻胺光稳定剂(XT100):1.5kg
复合抗氧剂(B215):0.75kg
流滴剂(KF650):9.75kg
水滑石复合保温剂:6kg
消雾剂:0.5kg
以上A、B两种母料各组分准确称量,投入密炼机中搅拌、捏合,经单螺杆挤出机造粒后备用。
C、低碱性长寿功能母料的制备:
低密度聚乙烯粉料(LLDPE):88kg
受阻胺光稳定剂(XT100):8kg
复合抗氧剂(B215):4kg
D、普通长寿功能母料的制备:
低密度聚乙烯粉料(LLDPE):88kg
受阻胺光稳定剂(TH944):8kg
复合抗氧剂(B215):4kg
以上C、D两种母料各组分准确称量,投入高速混合机中搅拌均匀,经双螺杆挤出机造粒风干备用。
乙烯--乙酸乙烯酯共聚物(EVA)吹塑棚膜----草莓专用膜的制备:
草莓专用膜的制备是采用三层共挤吹塑工艺,各层所用树脂按如下要求选用,按比例加入A、B、C三种功能母料,经三层共挤工艺吹塑成型。各层原料按质量百分比选取如下:
外层(抗紫外线耐老化层):
线型低密度聚乙烯(LDPE):45%,线型低密度聚乙烯(LLDPE):45%
功能母料A:8%,功能母料C:1%,功能母料D:1%
中层(流滴保温层):
EVA树脂(VA含量12%,MI=0.5~1.0g/min):85%,功能母料A:15%
内层(减雾流滴保温层):
EVA树脂(VA含量12%):85%,功能母料B:15%
将称量好的物料用混料器搅拌15min,使物料混合均匀,分别送入三台挤出机中。挤出机长径比为30:1,模头为三层复合中心进料型。物料分别经三台挤出机的熔融、塑化、挤出到三层共挤模头经螺旋体继续塑化,经过圆形口模共同挤出。从圆形口模挤出复合筒状膜管,膜管在模心吹进的压缩空气吹胀作用下横向拉伸,同时经过圆形风口的冷却和上牵引夹辊的纵向牵伸,最后经插板插叠和收卷而制得草莓专用膜。
Claims (6)
1.一种乙烯--乙酸乙烯酯共聚物EVA吹塑棚膜-草莓专用膜,其特征在于,采用三层共挤吹塑工艺,各层原料按质量百分比如下:
外层为抗紫外线防老化层:
线型低密度聚乙烯LDPE/线型低密度聚乙烯LLDPE:89~91%
功能母料A:7.9~8.1%,功能母料C:0.9~1.1%
功能母料D:0.9~1.1%;
中层为流滴保温层:
EVA树脂:84~86%,功能母料A:14~16%
内层为减雾流滴保温层:
EVA树脂:84~86%,功能母料B:14~16%
所述的功能母料A为流滴保温类功能母料,各组分及质量百分数为
线型低密度聚乙烯LLDPE:39~41%,EVA树脂33~34%,
受阻胺光稳定剂1.9~2.1%,复合抗氧剂0.9~1.1%,
流滴剂14.9~15.1%,水滑石复合保温剂7.9~8.1%;
所述的功能母料B为减雾流滴保温类功能母料,各组分及质量百分数为
线型低密度聚乙烯LLDPE:40~42%,EVA树脂33~34%,
低碱性受阻胺光稳定剂1.9~2.1%,复合抗氧剂0.9~1.1%,
流滴剂12.9~13.1%,消雾剂0.9~1.1%,
水滑石复合保温剂7.9~8.1%;
所述的功能母料C为低碱性长寿类功能母料,各组分及质量百分数为
线型低密度聚乙烯粉料LLDPE:87~89%,
低碱性受阻胺光稳定剂7.5~8.5%,复合抗氧剂3.5~4.5%;所述的功能母料D为普通长寿类功能母料,各组分及质量百分数为
线型低密度聚乙烯粉料LLDPE:87~89%,受阻胺光稳定剂7.5~8.5%,
复合抗氧剂3.5~4.5%。
2.根据权利要求1所述的乙烯--乙酸乙烯酯共聚物EVA吹塑棚膜-草莓专用膜,其特征在于,所述的复合抗氧剂为B215。
3.根据权利要求1所述的乙烯--乙酸乙烯酯共聚物EVA吹塑棚膜-草莓专用膜,其特征在于,所述的流滴剂为KF650。
4.根据权利要求1所述的乙烯--乙酸乙烯酯共聚物EVA吹塑棚膜-草莓专用膜,其特征在于,所述的受阻胺光稳定剂为TH944。
5.根据权利要求1所述的乙烯--乙酸乙烯酯共聚物EVA吹塑棚膜-草莓专用膜,其特征在于,所述的低碱性受阻胺光稳定剂为XT100。
6.根据权利要求1所述的乙烯--乙酸乙烯酯共聚物EVA吹塑棚膜-草莓专用膜,其特征在于,所述的EVA树脂中VA含量12%,MI=0.5~1.0g/min。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811009682.7A CN109318563A (zh) | 2018-08-31 | 2018-08-31 | 乙烯-乙酸乙烯酯共聚物eva吹塑棚膜—草莓专用膜 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811009682.7A CN109318563A (zh) | 2018-08-31 | 2018-08-31 | 乙烯-乙酸乙烯酯共聚物eva吹塑棚膜—草莓专用膜 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109318563A true CN109318563A (zh) | 2019-02-12 |
Family
ID=65264550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811009682.7A Pending CN109318563A (zh) | 2018-08-31 | 2018-08-31 | 乙烯-乙酸乙烯酯共聚物eva吹塑棚膜—草莓专用膜 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109318563A (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112026307A (zh) * | 2020-08-20 | 2020-12-04 | 北方华锦化学工业股份有限公司 | 一种茂金属流滴春棚膜及其制备方法 |
CN112476836A (zh) * | 2020-11-17 | 2021-03-12 | 王彩云 | 一种聚乙烯阻燃塑料母粒的制备方法 |
CN112640787A (zh) * | 2020-12-15 | 2021-04-13 | 山东清田塑工有限公司 | 养殖大棚覆盖专用阻燃耐老化聚乙烯薄膜及其制备方法 |
CN113103702A (zh) * | 2021-05-17 | 2021-07-13 | 山东清田塑工有限公司 | 高防尘高保温抗农药的po膜功能母料与五层共挤po膜及其制备方法 |
CN116985493A (zh) * | 2023-09-27 | 2023-11-03 | 山东守正塑业有限公司 | 高保温转光长效消雾流滴棚内膜及其制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102922839A (zh) * | 2012-11-22 | 2013-02-13 | 淄博职业学院 | 高性能eva多功能复合棚膜 |
CN103264563A (zh) * | 2013-06-04 | 2013-08-28 | 河南省银丰塑料有限公司 | 三层共挤eva长寿消雾环保型多功能大棚膜 |
CN205052327U (zh) * | 2015-05-19 | 2016-03-02 | 侯培毅 | 一种农用聚烯烃转光棚膜 |
CN108357173A (zh) * | 2017-12-12 | 2018-08-03 | 北方华锦化学工业股份有限公司 | 一种乙烯-乙酸乙烯酯共聚物eva吹塑棚膜及其制备方法 |
-
2018
- 2018-08-31 CN CN201811009682.7A patent/CN109318563A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102922839A (zh) * | 2012-11-22 | 2013-02-13 | 淄博职业学院 | 高性能eva多功能复合棚膜 |
CN103264563A (zh) * | 2013-06-04 | 2013-08-28 | 河南省银丰塑料有限公司 | 三层共挤eva长寿消雾环保型多功能大棚膜 |
CN205052327U (zh) * | 2015-05-19 | 2016-03-02 | 侯培毅 | 一种农用聚烯烃转光棚膜 |
CN108357173A (zh) * | 2017-12-12 | 2018-08-03 | 北方华锦化学工业股份有限公司 | 一种乙烯-乙酸乙烯酯共聚物eva吹塑棚膜及其制备方法 |
Non-Patent Citations (1)
Title |
---|
于红军、赵英: "《塑料制品与加工》", 31 March 2003, 科学技术文献出版社 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112026307A (zh) * | 2020-08-20 | 2020-12-04 | 北方华锦化学工业股份有限公司 | 一种茂金属流滴春棚膜及其制备方法 |
CN112026307B (zh) * | 2020-08-20 | 2022-08-16 | 北方华锦化学工业股份有限公司 | 一种茂金属流滴春棚膜及其制备方法 |
CN112476836A (zh) * | 2020-11-17 | 2021-03-12 | 王彩云 | 一种聚乙烯阻燃塑料母粒的制备方法 |
CN112640787A (zh) * | 2020-12-15 | 2021-04-13 | 山东清田塑工有限公司 | 养殖大棚覆盖专用阻燃耐老化聚乙烯薄膜及其制备方法 |
CN113103702A (zh) * | 2021-05-17 | 2021-07-13 | 山东清田塑工有限公司 | 高防尘高保温抗农药的po膜功能母料与五层共挤po膜及其制备方法 |
CN116985493A (zh) * | 2023-09-27 | 2023-11-03 | 山东守正塑业有限公司 | 高保温转光长效消雾流滴棚内膜及其制备方法 |
CN116985493B (zh) * | 2023-09-27 | 2023-12-15 | 山东守正塑业有限公司 | 高保温转光长效消雾流滴棚内膜及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109318563A (zh) | 乙烯-乙酸乙烯酯共聚物eva吹塑棚膜—草莓专用膜 | |
CN108099326B (zh) | 三层共挤高保温转光po膜 | |
CN108357173A (zh) | 一种乙烯-乙酸乙烯酯共聚物eva吹塑棚膜及其制备方法 | |
CN102369854B (zh) | Pe/eva复合多功能棚膜 | |
CN104341672B (zh) | 一种果树专用除草膜及其制备工艺 | |
CN101081934B (zh) | 一种麻茎秆与塑料复合材料的制备方法 | |
CN107236167A (zh) | 一种高性能聚乙烯透气膜的制备方法 | |
CN104175579A (zh) | 一种双层中空高保温棚膜及其制备方法 | |
CN101503535A (zh) | 食品防霉气调保鲜膜 | |
CN102922839A (zh) | 高性能eva多功能复合棚膜 | |
CN109555285A (zh) | 一种弹性塑木地板及其制备方法 | |
CN109258222A (zh) | 乙烯-乙酸乙烯酯共聚物eva吹塑棚膜及其制备方法 | |
CN103374173A (zh) | 耐用型地膜 | |
JPH01122429A (ja) | 雰囲気制御包装用の一軸延伸充墳フイルム | |
CN114539661A (zh) | 一种高透光漫散射农用膜及其制备方法 | |
CN109838628A (zh) | 一种冬季用双壁波纹管及其制备方法 | |
CN108623880A (zh) | 一种木质素/低密度聚乙烯吹塑薄膜的生产方法 | |
CN105419111A (zh) | 一种用于苹果、梨的抗菌保湿保鲜包装薄膜 | |
CN108659398A (zh) | 一种抗菌型聚氯乙烯改性管材及生产工艺 | |
CN107674295A (zh) | 一种用于透气膜的材料的制备方法 | |
CN109511424A (zh) | 红外线阻隔高保温po膜及其制备方法 | |
CN104480715B (zh) | 高性能苫布的制备方法及其产品 | |
CN106957482A (zh) | 一种中空板材及其制备工艺 | |
CN112026307B (zh) | 一种茂金属流滴春棚膜及其制备方法 | |
CN107022141A (zh) | 一种农用膜及其制备方法和应用 |
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 | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190212 |
|
WD01 | Invention patent application deemed withdrawn after publication |