WO2023108818A1 - 一种疏水环保降解复合包装膜 - Google Patents

一种疏水环保降解复合包装膜 Download PDF

Info

Publication number
WO2023108818A1
WO2023108818A1 PCT/CN2021/141969 CN2021141969W WO2023108818A1 WO 2023108818 A1 WO2023108818 A1 WO 2023108818A1 CN 2021141969 W CN2021141969 W CN 2021141969W WO 2023108818 A1 WO2023108818 A1 WO 2023108818A1
Authority
WO
WIPO (PCT)
Prior art keywords
polyvinyl alcohol
packaging film
composite packaging
hydrophobic
sodium alginate
Prior art date
Application number
PCT/CN2021/141969
Other languages
English (en)
French (fr)
Inventor
王玲芝
Original Assignee
王玲芝
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 王玲芝 filed Critical 王玲芝
Publication of WO2023108818A1 publication Critical patent/WO2023108818A1/zh

Links

Images

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
    • B32B27/06—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
    • 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
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/26—Cellulose ethers
    • C08L1/28—Alkyl ethers
    • 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
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/02—Homopolymers or copolymers of unsaturated alcohols
    • C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/04—Alginic acid; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Definitions

  • the invention relates to the technical field of packaging films, in particular to a hydrophobic and environmentally friendly degradable composite packaging film.
  • Polyvinyl alcohol has good film-forming properties, has the functions of emulsification and adhesion, and is often used as the base material of food packaging films.
  • polyvinyl alcohol film is hydrophilic, has poor water resistance, and is prone to sticking after moisture absorption, and under low temperature and low humidity conditions, the film will become hard and brittle. Therefore, the mechanical properties of traditional polyvinyl alcohol films still need to be improved.
  • the invention provides a hydrophobic and environmentally friendly degradable composite packaging film.
  • the present invention provides the following technical solutions:
  • a hydrophobic and environmentally friendly degradable composite packaging film which is made of the following components in parts by weight: polyethylene resin 12-16, sodium alginate grafted polyvinyl alcohol 22-30, polylactic acid 30-38, nano calcium carbonate 18- 25. Calcium stearate 1-1.8, coupling agent 1-2, hydroxymethyl cellulose 8-12, konjac gum 3-8, fumed silica 10-15, methyl methacrylate 3-5.
  • the preparation method of the sodium alginate grafted polyvinyl alcohol is:
  • reaction solution is dried by rotary evaporation to obtain sodium alginate grafted polyvinyl alcohol.
  • the mass fraction of the polyvinyl alcohol solution is 15%;
  • the mixing mass ratio of the polyvinyl alcohol solution, sodium alginate and crosslinking agent is 20:1:0.2.
  • the crosslinking agent is N, N-methylenebisacrylamide.
  • the ultrasonic frequency is 35kHz, and the power is 800W;
  • the temperature of the ultrasonic treatment is 60°C.
  • the konjac gum is modified:
  • the mixing mass ratio of konjac gum and gum arabic is 5:1;
  • the konjac gum konjac gum is made from D-mannose and D-glucose; wherein the ratio of D-mannose to D-glucose is 1:1.6.
  • the coupling agent is a titanate coupling agent.
  • a method for preparing a hydrophobic and environmentally friendly degradable composite packaging film comprising the following steps:
  • the extrusion temperature of the extruder is 170°C;
  • the temperature of the extrusion casting die was 185°C.
  • Packaging films are usually not only required to have good mechanical properties, but also good moisture-proof and anti-oxidation effects are also key factors to prolong the shelf life of food.
  • the barrier properties of food packaging films to oxygen and water vapor are also considered. higher requirements.
  • the diffusion path of gas molecules can be extended, thereby reducing the gas permeability coefficient of the film, achieving high gas barrier properties, and reducing the packaging film.
  • the water vapor transmission rate greatly improves the preservation effect.
  • Sodium alginate is a by-product of extracting iodine and mannitol from brown algae kelp or sargassum, and its molecules are composed of ⁇ -D-mannuronic acid ( ⁇ -D-mannuronic, M) and ⁇ -L-gulo Uronic acid ( ⁇ -L-guluronic, G) is connected by (1 ⁇ 4) bonds and is a kind of natural polysaccharide.
  • the present invention can greatly improve the Improve the performance of polyvinyl alcohol, especially the improvement of its mechanical properties is more significant, the elongation at break of the modified polyvinyl alcohol has been greatly increased, and then the mechanical properties of the prepared composite packaging film have been significantly improved Ascension, which can expand the application field of composite packaging film.
  • the present invention provides a hydrophobic and environmentally friendly degradable composite packaging film, which has the following beneficial effects:
  • the present invention can greatly reduce the water contact angle of the composite packaging film by introducing a certain amount of polyethylene resin, so that the composite packaging film made has a certain hydrophobicity and expands its application range.
  • the synergistic effect of the combination can greatly improve the comprehensive performance of the composite packaging film, especially the mechanical properties have been significantly improved.
  • Figure 1 is a graph comparing the effects of different additions of sodium alginate grafted polyvinyl alcohol on the elongation at break of the composite packaging film.
  • a hydrophobic and environmentally friendly degradable composite packaging film which is made of the following components in parts by weight: polyethylene resin 12, sodium alginate grafted polyvinyl alcohol 22, polylactic acid 30, nanometer calcium carbonate 18, calcium stearate 1, Coupling agent 1, hydroxymethyl cellulose 8, konjac gum 3, fumed silica 10, methyl methacrylate 3.
  • the preparation method of the sodium alginate grafted polyvinyl alcohol is:
  • reaction solution is dried by rotary evaporation to obtain sodium alginate grafted polyvinyl alcohol.
  • the mass fraction of the polyvinyl alcohol solution is 15%;
  • the mixing mass ratio of the polyvinyl alcohol solution, sodium alginate and crosslinking agent is 20:1:0.2.
  • the crosslinking agent is N,N-methylenebisacrylamide.
  • the ultrasonic frequency is 35kHz, and the power is 800W;
  • the temperature of the ultrasonic treatment is 60°C.
  • Described konjac gum is through modified treatment:
  • the mixing mass ratio of konjac gum and gum arabic is 5:1;
  • the konjac gum konjac gum is made from D-mannose and D-glucose; wherein the ratio of D-mannose to D-glucose is 1:1.6.
  • the coupling agent is a titanate coupling agent.
  • a method for preparing a hydrophobic and environmentally friendly degradable composite packaging film comprising the following steps:
  • the extrusion temperature of the extruder is 170°C;
  • the temperature of the extrusion casting die was 185°C.
  • a hydrophobic and environmentally friendly degradable composite packaging film which is made of the following components in parts by weight: polyethylene resin 13, sodium alginate grafted polyvinyl alcohol 24, polylactic acid 32, nano calcium carbonate 20, calcium stearate 1.2, Coupling agent 1.2, hydroxymethyl cellulose 9, konjac gum 4, fumed silica 10, methyl methacrylate 4.
  • the preparation method of the sodium alginate grafted polyvinyl alcohol is:
  • reaction solution is dried by rotary evaporation to obtain sodium alginate grafted polyvinyl alcohol.
  • the mass fraction of the polyvinyl alcohol solution is 15%;
  • the mixing mass ratio of the polyvinyl alcohol solution, sodium alginate and crosslinking agent is 20:1:0.2.
  • the crosslinking agent is N,N-methylenebisacrylamide.
  • the ultrasonic frequency is 35kHz, and the power is 800W;
  • the temperature of the ultrasonic treatment is 60°C.
  • Described konjac gum is through modified treatment:
  • the mixing mass ratio of konjac gum and gum arabic is 5:1;
  • the konjac gum konjac gum is made from D-mannose and D-glucose; wherein the ratio of D-mannose to D-glucose is 1:1.6.
  • the coupling agent is a titanate coupling agent.
  • a method for preparing a hydrophobic and environmentally friendly degradable composite packaging film comprising the following steps:
  • the extrusion temperature of the extruder is 170°C;
  • the temperature of the extrusion casting die was 185°C.
  • a hydrophobic and environmentally friendly degradable composite packaging film which is made of the following components in parts by weight: polyethylene resin 14, sodium alginate grafted polyvinyl alcohol 25, polylactic acid 35, nano calcium carbonate 22, calcium stearate 1.5, Coupling agent 1.4, hydroxymethyl cellulose 10, konjac gum 5, fumed silica 14, methyl methacrylate 4.
  • the preparation method of the sodium alginate grafted polyvinyl alcohol is:
  • reaction solution is dried by rotary evaporation to obtain sodium alginate grafted polyvinyl alcohol.
  • the mass fraction of the polyvinyl alcohol solution is 15%;
  • the mixing mass ratio of the polyvinyl alcohol solution, sodium alginate and crosslinking agent is 20:1:0.2.
  • the crosslinking agent is N,N-methylenebisacrylamide.
  • the ultrasonic frequency is 35kHz, and the power is 800W;
  • the temperature of the ultrasonic treatment is 60°C.
  • Described konjac gum is through modified treatment:
  • the mixing mass ratio of konjac gum and gum arabic is 5:1;
  • the konjac gum konjac gum is made from D-mannose and D-glucose; wherein the ratio of D-mannose to D-glucose is 1:1.6.
  • the coupling agent is a titanate coupling agent.
  • a method for preparing a hydrophobic and environmentally friendly degradable composite packaging film comprising the following steps:
  • the extrusion temperature of the extruder is 170°C;
  • the temperature of the extrusion casting die was 185°C.
  • a hydrophobic and environmentally friendly degradable composite packaging film which is made of the following components in parts by weight: polyethylene resin 15, sodium alginate grafted polyvinyl alcohol 28, polylactic acid 36, nano calcium carbonate 24, calcium stearate 1.6, Coupling agent 1.8, hydroxymethyl cellulose 11, konjac gum 6, fumed silica 14, methyl methacrylate 4.
  • the preparation method of the sodium alginate grafted polyvinyl alcohol is:
  • reaction solution is dried by rotary evaporation to obtain sodium alginate grafted polyvinyl alcohol.
  • the mass fraction of the polyvinyl alcohol solution is 15%;
  • the mixing mass ratio of the polyvinyl alcohol solution, sodium alginate and crosslinking agent is 20:1:0.2.
  • the crosslinking agent is N,N-methylenebisacrylamide.
  • the ultrasonic frequency is 35kHz, and the power is 800W;
  • the temperature of the ultrasonic treatment is 60°C.
  • Described konjac gum is through modified treatment:
  • the mixing mass ratio of konjac gum and gum arabic is 5:1;
  • the konjac gum konjac gum is made from D-mannose and D-glucose; wherein the ratio of D-mannose to D-glucose is 1:1.6.
  • the coupling agent is a titanate coupling agent.
  • a method for preparing a hydrophobic and environmentally friendly degradable composite packaging film comprising the following steps:
  • the extrusion temperature of the extruder is 170°C;
  • the temperature of the extrusion casting die was 185°C.
  • a hydrophobic and environmentally friendly degradable composite packaging film which is made of the following components in parts by weight: polyethylene resin 16, sodium alginate grafted polyvinyl alcohol 29, polylactic acid 37, nanometer calcium carbonate 24, calcium stearate 1.6, Coupling agent 1.6, hydroxymethyl cellulose 11, konjac gum 7, fumed silica 14, methyl methacrylate 4.
  • the preparation method of the sodium alginate grafted polyvinyl alcohol is:
  • reaction solution is dried by rotary evaporation to obtain sodium alginate grafted polyvinyl alcohol.
  • the mass fraction of the polyvinyl alcohol solution is 15%;
  • the mixing mass ratio of the polyvinyl alcohol solution, sodium alginate and crosslinking agent is 20:1:0.2.
  • the crosslinking agent is N,N-methylenebisacrylamide.
  • the ultrasonic frequency is 35kHz, and the power is 800W;
  • the temperature of the ultrasonic treatment is 60°C.
  • Described konjac gum is through modified treatment:
  • the mixing mass ratio of konjac gum and gum arabic is 5:1;
  • the konjac gum konjac gum is made from D-mannose and D-glucose; wherein the ratio of D-mannose to D-glucose is 1:1.6.
  • the coupling agent is a titanate coupling agent.
  • a method for preparing a hydrophobic and environmentally friendly degradable composite packaging film comprising the following steps:
  • the extrusion temperature of the extruder is 170°C;
  • the temperature of the extrusion casting die was 185°C.
  • a hydrophobic and environmentally friendly degradable composite packaging film which is made of the following components in parts by weight: polyethylene resin 16, sodium alginate grafted polyvinyl alcohol 30, polylactic acid 38, nano calcium carbonate 25, calcium stearate 1.8, Coupling agent 2, hydroxymethyl cellulose 12, konjac gum 8, fumed silica 15, methyl methacrylate 5.
  • the preparation method of the sodium alginate grafted polyvinyl alcohol is:
  • reaction solution is dried by rotary evaporation to obtain sodium alginate grafted polyvinyl alcohol.
  • the mass fraction of the polyvinyl alcohol solution is 15%;
  • the mixing mass ratio of the polyvinyl alcohol solution, sodium alginate and crosslinking agent is 20:1:0.2.
  • the crosslinking agent is N,N-methylenebisacrylamide.
  • the ultrasonic frequency is 35kHz, and the power is 800W;
  • the temperature of the ultrasonic treatment is 60°C.
  • Described konjac gum is through modified treatment:
  • the mixing mass ratio of konjac gum and gum arabic is 5:1;
  • the konjac gum konjac gum is made from D-mannose and D-glucose; wherein the ratio of D-mannose to D-glucose is 1:1.6.
  • the coupling agent is a titanate coupling agent.
  • a method for preparing a hydrophobic and environmentally friendly degradable composite packaging film comprising the following steps:
  • the extrusion temperature of the extruder is 170°C;
  • the temperature of the extrusion casting die was 185°C.
  • Embodiment and comparative example composite packaging film thickness is 50 ⁇ m, contrast:
  • Comparative Example 1 The difference from Example 1 is that sodium alginate grafted polyvinyl alcohol is replaced by untreated polyvinyl alcohol;
  • the composite packaging film prepared by the present invention has excellent mechanical properties, especially the elongation at break has significantly improved.
  • Comparative Example 1 The difference from Example 1 is that sodium alginate grafted polyvinyl alcohol is replaced by untreated polyvinyl alcohol;
  • the composite packaging film prepared by the method of the present invention has a lower water vapor transmission rate, and the water vapor transmission rate of the composite packaging film can be greatly reduced by modifying polyvinyl alcohol.
  • Example 1 the Water contact angle/(°) Example 1 70.5 Example 2 71.2 Example 3 70.6 Example 4 70.2
  • Example 5 71.5
  • Example 6 70.1 Comparative example 2 98.4
  • Comparative example 2 differ from embodiment 1 in not adding polyethylene resin
  • Example 1 compare the effects of adding different weight parts of sodium alginate grafted polyvinyl alcohol on the elongation at break of the composite packaging film, as shown in Figure 1.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Wrappers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Abstract

本发明涉及复合包装膜技术领域，且公开了一种疏水环保降解复合包装膜，由以下组分制成：聚乙烯树脂、海藻酸钠接枝聚乙烯醇、聚乳酸、纳米碳酸钙、硬脂酸钙、偶联剂、羟甲基纤维素、魔芋胶、气相二氧化硅、甲基丙烯酸甲酯；本发明通过引入一定量的聚乙烯树脂，能够大幅度的降低复合包装膜的水接触角，从而使得制成的复合包装膜具有一定的疏水性能，扩大的其应用范围，本发明通过各组分的协同配合作用，能够大幅度的改善了复合包装膜的综合性能，尤其是力学性能得到显著的提高。

Description

一种疏水环保降解复合包装膜 技术领域
本发明涉及包装膜技术领域，具体为一种疏水环保降解复合包装膜。
背景技术
我国是世界包装制造和消费大国，而塑料在包装产业中占据了重要地位。在众多塑料包装制品中，塑料薄膜的使用量占比排在首位，且使用量还在快速增长。
聚乙烯醇存在良好的成膜特性，具有乳化和粘合的作用，常作为食品包装膜的基料。但是聚乙烯醇薄膜存在亲水性，耐水能力较差，吸湿后易产生粘连的现象，且低温和低湿度条件下，薄膜会出现变硬、变脆等问题。因此传统聚乙烯醇薄膜的力学性能仍需改良。
基于此，我们提出了一种疏水环保降解复合包装膜，希冀解决现有技术中的不足之处。
发明内容
针对现有技术的不足，本发明提供了一种疏水环保降解复合包装膜。
为实现上述的目的，本发明提供如下技术方案：
一种疏水环保降解复合包装膜，按重量份计由以下组分制成：聚乙烯树脂12-16、海藻酸钠接枝聚乙烯醇22-30、聚乳酸30-38、纳米碳酸钙18-25、硬脂酸钙1-1.8、偶联剂1-2、羟甲基纤维素8-12、魔芋胶3-8、气相二氧化硅10-15、甲基丙烯酸甲酯3-5。
作为进一步的技术方案：所述海藻酸钠接枝聚乙烯醇制备方法为：
(1)将聚乙烯醇添加到水中，然后调节温度至90℃，保温，以500r/min转速搅拌30min，得到聚乙烯醇溶液；
(2)向聚乙烯醇溶液中添加海藻酸钠和交联剂，调节温度至75℃，保温 搅拌2小时，得到反应液；
(3)向反应液中添加纳米氧化锌，然后进行超声波处理10min，得到复合反应液；
(4)将反应液进行旋转蒸发干燥，得到海藻酸钠接枝聚乙烯醇。
作为进一步的技术方案，所述聚乙烯醇溶液质量分数为15％；
所述聚乙烯醇溶液、海藻酸钠、交联剂混合质量比为：20∶1∶0.2。
作为进一步的技术方案，所述交联剂为N，N-亚甲基双丙烯酰胺。
作为进一步的技术方案：所述超声波频率为35kHz，功率为800W；
所述超声波处理的温度的为60℃。
作为进一步的技术方案：所述魔芋胶经过改性处理：
将魔芋胶添加到乙醇溶液中，然后再添加阿拉伯胶，调节温度至80℃，保温搅拌30min，然后再进行旋转蒸发干燥，得到。
作为进一步的技术方案，所述魔芋胶、阿拉伯胶混合质量比为5∶1；
所述魔芋胶魔芋胶是由D-甘露糖与D-葡萄糖制成；其中D-甘露糖与D-葡萄糖的比为1∶1.6。
作为进一步的技术方案，所述偶联剂为钛酸酯偶联剂。
一种疏水环保降解复合包装膜的制备方法，包括以下步骤：
(1)按重量份称取：聚乙烯树脂、海藻酸钠接枝聚乙烯醇、聚乳酸、纳米碳酸钙、硬脂酸钙、偶联剂、羟甲基纤维素、魔芋胶、气相二氧化硅、甲基丙烯酸甲酯；
(2)将上述原料添加到搅拌机中进行搅拌均匀，以1000r/min转速搅拌30min，然后进行粉碎，过筛，得到混合粉料；
(3)将混合粉料添加到挤出机和ABA型挤出流延模具制备5层复合膜，再采用三辊压光机进行拉伸处理即可。
作为进一步的技术方案，所述挤出机的挤出温度为170℃；
其中，挤出流延模具的温度为185℃。
包装膜，尤其是食品包装膜通常除了被要求具有良好的力学性能以外，具有良好的防潮及抗氧化效果也是延长食品货架期的关键因素，食品包装膜对氧气及水蒸气的阻隔性能也被予以较高的要求。本发明通过对聚乙烯醇进行接枝改性处理，协同配合纳米填料的引入可以起到延长气体分子扩散路径的作用，从而降低膜的气体渗透系数，实现高气体阻隔性，从而降低包装膜的水蒸气透过率，大幅度的提高了保鲜效果。
海藻酸钠是从褐藻类的海带或马尾藻中提取碘和甘露醇之后的副产物，其分子由β-D-甘露糖醛酸(β-D-mannuronic，M)和α-L-古洛糖醛酸(α-L-guluronic，G)按(1→4)键连接而成，是一种天然多糖，本发明通过将海藻酸钠与聚乙烯醇进行接枝改性处理，能够大幅度的改善聚乙烯醇的性能，尤其是对于其力学性能的提高较为显著，改性后的聚乙烯醇的断裂伸长率得到大幅度的增加，进而使得制备的复合包装膜的力学性能得到明显的提升，从而能够扩大了复合包装膜的应用领域。
与现有技术相比，本发明提供了一种疏水环保降解复合包装膜，具备以下有益效果：
本发明通过引入一定量的聚乙烯树脂，能够大幅度的降低复合包装膜的水接触角，从而使得制成的复合包装膜具有一定的疏水性能，扩大的其应用范围，本发明通过各组分的协同配合作用，能够大幅度的改善了复合包装膜的综合性能，尤其是力学性能得到显著的提高。
附图说明
图1为对比不同海藻酸钠接枝聚乙烯醇添加重量份对复合包装膜断裂伸长率的影响图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行 清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
一种疏水环保降解复合包装膜，按重量份计由以下组分制成：聚乙烯树脂12、海藻酸钠接枝聚乙烯醇22、聚乳酸30、纳米碳酸钙18、硬脂酸钙1、偶联剂1、羟甲基纤维素8、魔芋胶3、气相二氧化硅10、甲基丙烯酸甲酯3。
所述海藻酸钠接枝聚乙烯醇制备方法为：
(1)将聚乙烯醇添加到水中，然后调节温度至90℃，保温，以500r/min转速搅拌30min，得到聚乙烯醇溶液；
(2)向聚乙烯醇溶液中添加海藻酸钠和交联剂，调节温度至75℃，保温搅拌2小时，得到反应液；
(3)向反应液中添加纳米氧化锌，然后进行超声波处理10min，得到复合反应液；
(4)将反应液进行旋转蒸发干燥，得到海藻酸钠接枝聚乙烯醇。
所述聚乙烯醇溶液质量分数为15％；
所述聚乙烯醇溶液、海藻酸钠、交联剂混合质量比为：20∶1∶0.2。
所述交联剂为N，N-亚甲基双丙烯酰胺。
所述超声波频率为35kHz，功率为800W；
所述超声波处理的温度的为60℃。
所述魔芋胶经过改性处理：
将魔芋胶添加到乙醇溶液中，然后再添加阿拉伯胶，调节温度至80℃，保温搅拌30min，然后再进行旋转蒸发干燥，得到。
所述魔芋胶、阿拉伯胶混合质量比为5∶1；
所述魔芋胶魔芋胶是由D-甘露糖与D-葡萄糖制成；其中D-甘露糖与D- 葡萄糖的比为1∶1.6。
所述偶联剂为钛酸酯偶联剂。
一种疏水环保降解复合包装膜的制备方法，包括以下步骤：
(1)按重量份称取：聚乙烯树脂、海藻酸钠接枝聚乙烯醇、聚乳酸、纳米碳酸钙、硬脂酸钙、偶联剂、羟甲基纤维素、魔芋胶、气相二氧化硅、甲基丙烯酸甲酯；
(2)将上述原料添加到搅拌机中进行搅拌均匀，以1000r/min转速搅拌30min，然后进行粉碎，过筛，得到混合粉料；
(3)将混合粉料添加到挤出机和ABA型挤出流延模具制备5层复合膜，再采用三辊压光机进行拉伸处理即可。
所述挤出机的挤出温度为170℃；
其中，挤出流延模具的温度为185℃。
实施例2
一种疏水环保降解复合包装膜，按重量份计由以下组分制成：聚乙烯树脂13、海藻酸钠接枝聚乙烯醇24、聚乳酸32、纳米碳酸钙20、硬脂酸钙1.2、偶联剂1.2、羟甲基纤维素9、魔芋胶4、气相二氧化硅10、甲基丙烯酸甲酯4。
所述海藻酸钠接枝聚乙烯醇制备方法为：
(1)将聚乙烯醇添加到水中，然后调节温度至90℃，保温，以500r/min转速搅拌30min，得到聚乙烯醇溶液；
(2)向聚乙烯醇溶液中添加海藻酸钠和交联剂，调节温度至75℃，保温搅拌2小时，得到反应液；
(3)向反应液中添加纳米氧化锌，然后进行超声波处理10min，得到复合反应液；
(4)将反应液进行旋转蒸发干燥，得到海藻酸钠接枝聚乙烯醇。
所述聚乙烯醇溶液质量分数为15％；
所述聚乙烯醇溶液、海藻酸钠、交联剂混合质量比为：20∶1∶0.2。
所述交联剂为N，N-亚甲基双丙烯酰胺。
所述超声波频率为35kHz，功率为800W；
所述超声波处理的温度的为60℃。
所述魔芋胶经过改性处理：
将魔芋胶添加到乙醇溶液中，然后再添加阿拉伯胶，调节温度至80℃，保温搅拌30min，然后再进行旋转蒸发干燥，得到。
所述魔芋胶、阿拉伯胶混合质量比为5∶1；
所述魔芋胶魔芋胶是由D-甘露糖与D-葡萄糖制成；其中D-甘露糖与D-葡萄糖的比为1∶1.6。
所述偶联剂为钛酸酯偶联剂。
一种疏水环保降解复合包装膜的制备方法，包括以下步骤：
(1)按重量份称取：聚乙烯树脂、海藻酸钠接枝聚乙烯醇、聚乳酸、纳米碳酸钙、硬脂酸钙、偶联剂、羟甲基纤维素、魔芋胶、气相二氧化硅、甲基丙烯酸甲酯；
(2)将上述原料添加到搅拌机中进行搅拌均匀，以1000r/min转速搅拌30min，然后进行粉碎，过筛，得到混合粉料；
(3)将混合粉料添加到挤出机和ABA型挤出流延模具制备5层复合膜，再采用三辊压光机进行拉伸处理即可。
所述挤出机的挤出温度为170℃；
其中，挤出流延模具的温度为185℃。
实施例3
一种疏水环保降解复合包装膜，按重量份计由以下组分制成：聚乙烯树脂14、海藻酸钠接枝聚乙烯醇25、聚乳酸35、纳米碳酸钙22、硬脂酸钙1.5、 偶联剂1.4、羟甲基纤维素10、魔芋胶5、气相二氧化硅14、甲基丙烯酸甲酯4。
所述海藻酸钠接枝聚乙烯醇制备方法为：
(1)将聚乙烯醇添加到水中，然后调节温度至90℃，保温，以500r/min转速搅拌30min，得到聚乙烯醇溶液；
(2)向聚乙烯醇溶液中添加海藻酸钠和交联剂，调节温度至75℃，保温搅拌2小时，得到反应液；
(3)向反应液中添加纳米氧化锌，然后进行超声波处理10min，得到复合反应液；
(4)将反应液进行旋转蒸发干燥，得到海藻酸钠接枝聚乙烯醇。
所述聚乙烯醇溶液质量分数为15％；
所述聚乙烯醇溶液、海藻酸钠、交联剂混合质量比为：20∶1∶0.2。
所述交联剂为N，N-亚甲基双丙烯酰胺。
所述超声波频率为35kHz，功率为800W；
所述超声波处理的温度的为60℃。
所述魔芋胶经过改性处理：
将魔芋胶添加到乙醇溶液中，然后再添加阿拉伯胶，调节温度至80℃，保温搅拌30min，然后再进行旋转蒸发干燥，得到。
所述魔芋胶、阿拉伯胶混合质量比为5∶1；
所述魔芋胶魔芋胶是由D-甘露糖与D-葡萄糖制成；其中D-甘露糖与D-葡萄糖的比为1∶1.6。
所述偶联剂为钛酸酯偶联剂。
一种疏水环保降解复合包装膜的制备方法，包括以下步骤：
(1)按重量份称取：聚乙烯树脂、海藻酸钠接枝聚乙烯醇、聚乳酸、纳米碳酸钙、硬脂酸钙、偶联剂、羟甲基纤维素、魔芋胶、气相二氧化硅、甲基 丙烯酸甲酯；
(2)将上述原料添加到搅拌机中进行搅拌均匀，以1000r/min转速搅拌30min，然后进行粉碎，过筛，得到混合粉料；
(3)将混合粉料添加到挤出机和ABA型挤出流延模具制备5层复合膜，再采用三辊压光机进行拉伸处理即可。
所述挤出机的挤出温度为170℃；
其中，挤出流延模具的温度为185℃。
实施例4
一种疏水环保降解复合包装膜，按重量份计由以下组分制成：聚乙烯树脂15、海藻酸钠接枝聚乙烯醇28、聚乳酸36、纳米碳酸钙24、硬脂酸钙1.6、偶联剂1.8、羟甲基纤维素11、魔芋胶6、气相二氧化硅14、甲基丙烯酸甲酯4。
所述海藻酸钠接枝聚乙烯醇制备方法为：
(1)将聚乙烯醇添加到水中，然后调节温度至90℃，保温，以500r/min转速搅拌30min，得到聚乙烯醇溶液；
(2)向聚乙烯醇溶液中添加海藻酸钠和交联剂，调节温度至75℃，保温搅拌2小时，得到反应液；
(3)向反应液中添加纳米氧化锌，然后进行超声波处理10min，得到复合反应液；
(4)将反应液进行旋转蒸发干燥，得到海藻酸钠接枝聚乙烯醇。
所述聚乙烯醇溶液质量分数为15％；
所述聚乙烯醇溶液、海藻酸钠、交联剂混合质量比为：20∶1∶0.2。
所述交联剂为N，N-亚甲基双丙烯酰胺。
所述超声波频率为35kHz，功率为800W；
所述超声波处理的温度的为60℃。
所述魔芋胶经过改性处理：
将魔芋胶添加到乙醇溶液中，然后再添加阿拉伯胶，调节温度至80℃，保温搅拌30min，然后再进行旋转蒸发干燥，得到。
所述魔芋胶、阿拉伯胶混合质量比为5∶1；
所述魔芋胶魔芋胶是由D-甘露糖与D-葡萄糖制成；其中D-甘露糖与D-葡萄糖的比为1∶1.6。
所述偶联剂为钛酸酯偶联剂。
一种疏水环保降解复合包装膜的制备方法，包括以下步骤：
(1)按重量份称取：聚乙烯树脂、海藻酸钠接枝聚乙烯醇、聚乳酸、纳米碳酸钙、硬脂酸钙、偶联剂、羟甲基纤维素、魔芋胶、气相二氧化硅、甲基丙烯酸甲酯；
(2)将上述原料添加到搅拌机中进行搅拌均匀，以1000r/min转速搅拌30min，然后进行粉碎，过筛，得到混合粉料；
(3)将混合粉料添加到挤出机和ABA型挤出流延模具制备5层复合膜，再采用三辊压光机进行拉伸处理即可。
所述挤出机的挤出温度为170℃；
其中，挤出流延模具的温度为185℃。
实施例5
一种疏水环保降解复合包装膜，按重量份计由以下组分制成：聚乙烯树脂16、海藻酸钠接枝聚乙烯醇29、聚乳酸37、纳米碳酸钙24、硬脂酸钙1.6、偶联剂1.6、羟甲基纤维素11、魔芋胶7、气相二氧化硅14、甲基丙烯酸甲酯4。
所述海藻酸钠接枝聚乙烯醇制备方法为：
(1)将聚乙烯醇添加到水中，然后调节温度至90℃，保温，以500r/min转速搅拌30min，得到聚乙烯醇溶液；
(2)向聚乙烯醇溶液中添加海藻酸钠和交联剂，调节温度至75℃，保温搅拌2小时，得到反应液；
(3)向反应液中添加纳米氧化锌，然后进行超声波处理10min，得到复合反应液；
(4)将反应液进行旋转蒸发干燥，得到海藻酸钠接枝聚乙烯醇。
所述聚乙烯醇溶液质量分数为15％；
所述聚乙烯醇溶液、海藻酸钠、交联剂混合质量比为：20∶1∶0.2。
所述交联剂为N，N-亚甲基双丙烯酰胺。
所述超声波频率为35kHz，功率为800W；
所述超声波处理的温度的为60℃。
所述魔芋胶经过改性处理：
将魔芋胶添加到乙醇溶液中，然后再添加阿拉伯胶，调节温度至80℃，保温搅拌30min，然后再进行旋转蒸发干燥，得到。
所述魔芋胶、阿拉伯胶混合质量比为5∶1；
所述魔芋胶魔芋胶是由D-甘露糖与D-葡萄糖制成；其中D-甘露糖与D-葡萄糖的比为1∶1.6。
所述偶联剂为钛酸酯偶联剂。
一种疏水环保降解复合包装膜的制备方法，包括以下步骤：
(1)按重量份称取：聚乙烯树脂、海藻酸钠接枝聚乙烯醇、聚乳酸、纳米碳酸钙、硬脂酸钙、偶联剂、羟甲基纤维素、魔芋胶、气相二氧化硅、甲基丙烯酸甲酯；
(2)将上述原料添加到搅拌机中进行搅拌均匀，以1000r/min转速搅拌30min，然后进行粉碎，过筛，得到混合粉料；
(3)将混合粉料添加到挤出机和ABA型挤出流延模具制备5层复合膜，再采用三辊压光机进行拉伸处理即可。
所述挤出机的挤出温度为170℃；
其中，挤出流延模具的温度为185℃。
实施例6
一种疏水环保降解复合包装膜，按重量份计由以下组分制成：聚乙烯树脂16、海藻酸钠接枝聚乙烯醇30、聚乳酸38、纳米碳酸钙25、硬脂酸钙1.8、偶联剂2、羟甲基纤维素12、魔芋胶8、气相二氧化硅15、甲基丙烯酸甲酯5。
所述海藻酸钠接枝聚乙烯醇制备方法为：
(1)将聚乙烯醇添加到水中，然后调节温度至90℃，保温，以500r/min转速搅拌30min，得到聚乙烯醇溶液；
(2)向聚乙烯醇溶液中添加海藻酸钠和交联剂，调节温度至75℃，保温搅拌2小时，得到反应液；
(3)向反应液中添加纳米氧化锌，然后进行超声波处理10min，得到复合反应液；
(4)将反应液进行旋转蒸发干燥，得到海藻酸钠接枝聚乙烯醇。
所述聚乙烯醇溶液质量分数为15％；
所述聚乙烯醇溶液、海藻酸钠、交联剂混合质量比为：20∶1∶0.2。
所述交联剂为N，N-亚甲基双丙烯酰胺。
所述超声波频率为35kHz，功率为800W；
所述超声波处理的温度的为60℃。
所述魔芋胶经过改性处理：
将魔芋胶添加到乙醇溶液中，然后再添加阿拉伯胶，调节温度至80℃，保温搅拌30min，然后再进行旋转蒸发干燥，得到。
所述魔芋胶、阿拉伯胶混合质量比为5∶1；
所述魔芋胶魔芋胶是由D-甘露糖与D-葡萄糖制成；其中D-甘露糖与D-葡萄糖的比为1∶1.6。
所述偶联剂为钛酸酯偶联剂。
一种疏水环保降解复合包装膜的制备方法，包括以下步骤：
(1)按重量份称取：聚乙烯树脂、海藻酸钠接枝聚乙烯醇、聚乳酸、纳米碳酸钙、硬脂酸钙、偶联剂、羟甲基纤维素、魔芋胶、气相二氧化硅、甲基丙烯酸甲酯；
(2)将上述原料添加到搅拌机中进行搅拌均匀，以1000r/min转速搅拌30min，然后进行粉碎，过筛，得到混合粉料；
(3)将混合粉料添加到挤出机和ABA型挤出流延模具制备5层复合膜，再采用三辊压光机进行拉伸处理即可。
所述挤出机的挤出温度为170℃；
其中，挤出流延模具的温度为185℃。
试验：
实施例与对比例复合包装膜厚度为50μm，对比：
表1
  断裂伸长率％
实施例1 122.3
实施例2 123.8
实施例3 125.1
实施例4 123.0
实施例5 122.6
实施例6 122.5
对比例1 80.5
对比例1：与实施例1区别为海藻酸钠接枝聚乙烯醇替换为未处理的聚乙烯醇；
由表1可以看出，本发明制备的复合包装膜具有优异的力学性能，尤其 是断裂伸长率具有明显的提高。
进一步试验：
表2
Figure PCTCN2021141969-appb-000001
对比例1：与实施例1区别为海藻酸钠接枝聚乙烯醇替换为未处理的聚乙烯醇；
由表2可以看出，本发明方法制备的复合包装膜具有更低的水蒸气透过率，通过对聚乙烯醇的改性处理，能够大幅度的降低复合包装膜的水蒸气透过率。
进一步试验：
表3
  水接触角/(°)
实施例1 70.5
实施例2 71.2
实施例3 70.6
实施例4 70.2
实施例5 71.5
实施例6 70.1
对比例2 98.4
对比例2：与实施例1区别为不添加聚乙烯树脂；
由表3可以看出，通过引入一定量的聚乙烯树脂，能够大幅度的降低复合包装膜的水接触角，从而使得制成的复合包装膜具有一定的疏水性能，扩大的其应用范围。
以实施例1为基础试样，对比不同海藻酸钠接枝聚乙烯醇添加重量份对复合包装膜断裂伸长率的影响，如图1。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (10)

  1. 一种疏水环保降解复合包装膜，其特征在于，按重量份计由以下组分制成：聚乙烯树脂12-16、海藻酸钠接枝聚乙烯醇22-30、聚乳酸30-38、纳米碳酸钙18-25、硬脂酸钙1-1.8、偶联剂1-2、羟甲基纤维素8-12、魔芋胶3-8、气相二氧化硅10-15、甲基丙烯酸甲酯3-5。
  2. 根据权利要求1所述的一种疏水环保降解复合包装膜，其特征在于：所述海藻酸钠接枝聚乙烯醇制备方法为：
    (1)将聚乙烯醇添加到水中，然后调节温度至90℃，保温，以500r/min转速搅拌30min，得到聚乙烯醇溶液；
    (2)向聚乙烯醇溶液中添加海藻酸钠和交联剂，调节温度至75℃，保温搅拌2小时，得到反应液；
    (3)向反应液中添加纳米氧化锌，然后进行超声波处理10min，得到复合反应液；
    (4)将反应液进行旋转蒸发干燥，得到海藻酸钠接枝聚乙烯醇。
  3. 根据权利要求2所述的一种疏水环保降解复合包装膜，其特征在于，所述聚乙烯醇溶液质量分数为15％；
    所述聚乙烯醇溶液、海藻酸钠、交联剂混合质量比为：20∶1∶0.2。
  4. 根据权利要求3所述的一种疏水环保降解复合包装膜，其特征在于，所述交联剂为N，N-亚甲基双丙烯酰胺。
  5. 根据权利要求3所述的一种疏水环保降解复合包装膜，其特征在于：所述超声波频率为35kHz，功率为800W；
    所述超声波处理的温度的为60℃。
  6. 根据权利要求1所述的一种疏水环保降解复合包装膜，其特征在于：所述魔芋胶经过改性处理：
    将魔芋胶添加到乙醇溶液中，然后再添加阿拉伯胶，调节温度至80℃，保温搅拌30min，然后再进行旋转蒸发干燥，得到。
  7. 根据权利要求6所述的一种疏水环保降解复合包装膜，其特征在于，所述魔芋胶、阿拉伯胶混合质量比为5∶1；
    所述魔芋胶魔芋胶是由D-甘露糖与D-葡萄糖制成；其中D-甘露糖与D-葡萄糖的比为1∶1.6。
  8. 根据权利要求1所述的一种疏水环保降解复合包装膜，其特征在于，所述偶联剂为钛酸酯偶联剂。
  9. 根据权利要求1所述的一种疏水环保降解复合包装膜的制备方法，其特征在于，包括以下步骤：
    (1)按重量份称取：聚乙烯树脂、海藻酸钠接枝聚乙烯醇、聚乳酸、纳米碳酸钙、硬脂酸钙、偶联剂、羟甲基纤维素、魔芋胶、气相二氧化硅、甲基丙烯酸甲酯；
    (2)将上述原料添加到搅拌机中进行搅拌均匀，以1000r/min转速搅拌30min，然后进行粉碎，过筛，得到混合粉料；
    (3)将混合粉料添加到挤出机和ABA型挤出流延模具制备5层复合膜，再采用三辊压光机进行拉伸处理即可。
  10. 根据权利要求9所述的一种疏水环保降解复合包装膜的制备方法，其特征在于，所述挤出机的挤出温度为170℃；
    其中，挤出流延模具的温度为185℃。
PCT/CN2021/141969 2021-12-13 2021-12-28 一种疏水环保降解复合包装膜 WO2023108818A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111520649.2A CN114350125A (zh) 2021-12-13 2021-12-13 一种疏水环保降解复合包装膜
CN202111520649.2 2021-12-13

Publications (1)

Publication Number Publication Date
WO2023108818A1 true WO2023108818A1 (zh) 2023-06-22

Family

ID=81099422

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/141969 WO2023108818A1 (zh) 2021-12-13 2021-12-28 一种疏水环保降解复合包装膜

Country Status (2)

Country Link
CN (1) CN114350125A (zh)
WO (1) WO2023108818A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117384469A (zh) * 2023-10-16 2024-01-12 台州天奇鞋业股份有限公司 一种透气性耐磨鞋面材料及制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104710021A (zh) * 2015-03-24 2015-06-17 山东聚祥环境工程有限公司 地埋式污水处理设备用填料及太阳能污水处理设备
CN108410022A (zh) * 2018-03-08 2018-08-17 安徽巢湖南方膜业有限责任公司 一种加厚食品包装膜的生产工艺
WO2019080524A1 (zh) * 2017-10-27 2019-05-02 金发科技股份有限公司 一种聚乳酸复合材料及其应用
CN109867850A (zh) * 2019-03-15 2019-06-11 成都新柯力化工科技有限公司 一种淀粉基可降解包装膜用塑料母料及制备方法
CN111117045A (zh) * 2019-12-18 2020-05-08 桐城市千家惠塑料包装有限公司 一种高性能环保包装膜及其制备方法
CN112266529A (zh) * 2020-10-25 2021-01-26 太仓市鸿运包装材料有限公司 一种高性能环保包装膜及其制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424482B (zh) * 2011-10-27 2013-04-17 上海理工大学 一种用于处理污水的光生物漂浮式填料及其制备方法和应用
CN108837179A (zh) * 2018-08-09 2018-11-20 江西省科学院应用化学研究所 一种抗菌吸液型海藻酸钠复合纳米纤维医用敷料

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104710021A (zh) * 2015-03-24 2015-06-17 山东聚祥环境工程有限公司 地埋式污水处理设备用填料及太阳能污水处理设备
WO2019080524A1 (zh) * 2017-10-27 2019-05-02 金发科技股份有限公司 一种聚乳酸复合材料及其应用
CN108410022A (zh) * 2018-03-08 2018-08-17 安徽巢湖南方膜业有限责任公司 一种加厚食品包装膜的生产工艺
CN109867850A (zh) * 2019-03-15 2019-06-11 成都新柯力化工科技有限公司 一种淀粉基可降解包装膜用塑料母料及制备方法
CN111117045A (zh) * 2019-12-18 2020-05-08 桐城市千家惠塑料包装有限公司 一种高性能环保包装膜及其制备方法
CN112266529A (zh) * 2020-10-25 2021-01-26 太仓市鸿运包装材料有限公司 一种高性能环保包装膜及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117384469A (zh) * 2023-10-16 2024-01-12 台州天奇鞋业股份有限公司 一种透气性耐磨鞋面材料及制备方法
CN117384469B (zh) * 2023-10-16 2024-05-07 台州天奇鞋业股份有限公司 一种透气性耐磨鞋面材料及制备方法

Also Published As

Publication number Publication date
CN114350125A (zh) 2022-04-15

Similar Documents

Publication Publication Date Title
CN110078958A (zh) 一种抑菌活性食品包装膜的制备方法及应用
AU2020289770B2 (en) Antimicrobial chitosan/Kojic acid/chloro-Kojic acid composite preservation film and preparation method thereof
Xiao et al. Blend films from konjac glucomannan and sodium alginate solutions and their preservative effect
WO2023108818A1 (zh) 一种疏水环保降解复合包装膜
CN101445636A (zh) 一种海藻酸钠和聚乙烯醇复合海绵材料及其制备方法
CN107365421B (zh) 细菌纤维素/pva可生物降解复合塑料薄膜的制备方法
CN109912876A (zh) 一种高断裂伸长率的抗菌微孔保鲜膜及其制备方法
CN113292753B (zh) 一种缓控释抗菌性壳聚糖基复合膜的制备方法及其应用
Liu et al. Mechanical and water vapor barrier properties of bagasse hemicellulose-based films
KR20160072652A (ko) 단백질-고분자-그래핀 옥사이드 나노복합체 및 이를 포함하는 필름
CN109293999B (zh) 一种能够完全生物降解的淀粉纳米抗菌复合薄膜的制备方法及所得产品和应用
CN112940311A (zh) 一种基于玉米淀粉交联改性膜的制备方法
CN111001314A (zh) 一种纳米微晶纤维素/多巴胺复合膜的制备方法及应用
CN101565482B (zh) 聚乙烯醇基涂膜保鲜包装新材料及制备工艺
CN114016322B (zh) 一种食品级保温隔热材料的制备方法及产品应用
Wu et al. Ultrasonication improves the structures and physicochemical properties of cassava starch films containing acetic acid
Zhang et al. Fully biodegradable, hydrophobic, enhanced barrier starch bio-composites with sandwich structure by simulating wood
CN110343272A (zh) 一种细菌纤维素纳米纤维增强魔芋胶可食膜及其制备方法
CN107099047B (zh) 一种pe保鲜涂布膜的制备方法与用途
TWI492977B (zh) 袋用尼龍薄膜
Song et al. Structure and properties of methylcellulose microfiber reinforced wheat gluten based green composites
CN111518322A (zh) 一种纤维素改性乳胶材料及其制备方法和应用
CN113730645B (zh) 一种用于快速止血和伤口修复的海绵及其制备方法
CN109912947A (zh) 用于果蔬的气调保鲜膜及其制备方法
CN110408226B (zh) 一种高强度耐热食品包装膜的制备方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21967947

Country of ref document: EP

Kind code of ref document: A1