Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Three-layer co-extrusion high heat preservation light conversion po film

A three-layer co-extrusion, shed film technology, applied in the field of agricultural shed film, can solve problems such as single function, achieve the effects of good optical performance, improved flexibility, and high heat sealing strength

Active Publication Date: 2020-01-14
HENAN YINFENG PLASTIC
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present PO agricultural shed film generally has a single function deficiency. The applicant has improved the PO agricultural shed film in the invention patent "three-layer co-extrusion EVA long-life anti-fog and environmental protection multifunctional greenhouse film 201310219304.2" applied in the previous period. Mix the formulations of the outer layer, middle layer and inner layer evenly, and use a twin-head threaded screw twin-screw extruder to make a masterbatch, which is extruded through a co-extrusion die to form a three-layer film, which has excellent anti-aging performance and no mist. Functional agricultural greenhouse film

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-layer co-extrusion high heat preservation light conversion po film
  • Three-layer co-extrusion high heat preservation light conversion po film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The raw material formula of the present invention is as follows: each component is calculated by weight percentage,

[0045] Inner layer: linear low density polyethylene (LLDPE) 0209AA: 10%, metallocene linear low density polyethylene mLLDPE1018HA: 55%, low density polyethylene LDPE2420D: 15%, long-life masterbatch 15%, rheological agent 5%.

[0046] Middle layer: metallocene linear low density polyethylene mLLDPE1018HA: 45%, hydrotalcite master batch 10%, ethylene-vinyl acetate copolymer (EVA): 20%, low density polyethylene LDPE2420D: 10%, longevity master batch 5%, Luster masterbatch 8%, rheological agent (PPA masterbatch) 2%.

[0047] Outer layer: linear low density polyethylene (LLDPE) 0209AA: 10%, metallocene linear low density polyethylene mLLDPE1018HA: 60%, low density polyethylene LDPE2420D: 10%, long-life masterbatch 16%, rheological agent 4%.

[0048] The longevity masterbatch is composed of the following components, each component in weight percentage: dripping agent...

Embodiment 2

[0052] The raw material formula of the present invention is as follows: each component is calculated by weight percentage, inner layer: linear low density polyethylene (LLDPE) 0209AA: 10%, metallocene linear low density polyethylene mLLDPE1018HA: 60%, low density polyethylene LDPE2420D: 15 %, longevity masterbatch 10%, rheological agent 5%.

[0053] Middle layer: metallocene linear low density polyethylene mLLDPE1018HA: 50%, hydrotalcite master batch 10%, ethylene-vinyl acetate copolymer (EVA): 15%, low density polyethylene LDPE2420D: 10%, longevity master batch 5%, Luster masterbatch 7%, rheological agent (PPA masterbatch) 3%.

[0054] Outer layer: linear low density polyethylene (LLDPE) 0209AA: 20%, metallocene linear low density polyethylene mLLDPE1018HA: 50%, low density polyethylene LDPE2420D: 10%, longevity masterbatch 16%, rheological agent 4%.

[0055] The longevity masterbatch is composed of the following components, each component in weight percentage: dripping agent 20%; ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The invention discloses a three-layer co-extruded high-heat-preservation light-conversion PO film, and belongs to the field of agricultural greenhouse films. According to the invention, on the basis of a previous product, ethylene-vinyl acetate copolymer (EVA) is added into metallocene polyethylene (mPE), a light-conversion master batch is added into a middle layer, the formulas of an outer layer,the middle layer and an inner layer are different, the formulas of the outer layer, the middle layer and the inner layer are mixed uniformly respectively, master batches are prepared by using a two-thread worm double-screw extruder, a three-layer film extrusion is formed through a co-extrusion die head to prepare a PO agricultural greenhouse film, and water-based dripping fog-eliminating coatingliquid is coated outside the PO film. The film is anti-aging and free of fog drops, and excellent in puncture resistance and has a service life of 3 years or more. After inspection and testing by an authoritative department, all quality and technical indexes reach or exceed a national standard, some of which are more than twice as good as the national standard. The PO film is good in light-conversion effect, has a light conversion rate reaching 13% or more, is very beneficial to the growth of crops and shortens the growth period of the crops at the same time.

Description

Technical field [0001] The invention relates to a PO film and a preparation process thereof, in particular to the preparation of a PO film using high-grade olefin raw materials and other auxiliary agents as raw materials, and belongs to the field of agricultural greenhouse films. Background technique [0002] PO film (agricultural greenhouse film) is an agricultural composite layer greenhouse film. The first is a new type of multi-layer high-grade functional polyolefin agricultural greenhouse produced by using high-grade olefin raw materials and other additives in Japan and drying after spraying. membrane. [0003] PO film is a new generation of agricultural greenhouse film. Since its introduction, PO film has been favored by the majority of growers with its excellent anti-fogging and dripping properties, high light transmittance, and high thermal insulation. The life of the greenhouse film is synchronized. In recent years, my country's agricultural film industry manufacturers ha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/18B32B27/32C08L23/08C08L23/06C08K3/26A01G9/14B29C48/18
CPCA01G9/1438B29C48/18B29C55/28B32B27/08B32B27/18B32B27/32B32B27/327B32B2250/03B32B2250/242B32B2255/102B32B2255/26B32B2307/31B32B2307/406B32B2307/412B32B2307/558B32B2307/714B32B2307/726B32B2307/73B32B2410/00C08L23/0815C08L2205/025C08L2205/035C08L2207/066C08L23/06C08L23/0853C08K3/26Y02A40/25
Inventor 孙美菊孙爱亲刘允方卫星王勇李永勃
Owner HENAN YINFENG PLASTIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com