CN110524837A - 一种增韧塑料编织袋的制备方法 - Google Patents

一种增韧塑料编织袋的制备方法 Download PDF

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CN110524837A
CN110524837A CN201910845932.9A CN201910845932A CN110524837A CN 110524837 A CN110524837 A CN 110524837A CN 201910845932 A CN201910845932 A CN 201910845932A CN 110524837 A CN110524837 A CN 110524837A
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woven bag
bag
overlay film
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parts
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张爱军
张峰
陈颜君
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Zaoyang Donghang Woven Printing Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0021Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815Hot melt adhesives, e.g. thermoplastic adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61Joining from or joining on the inside
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K3/34Silicon-containing compounds
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
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    • C08K5/134Phenols containing ester groups
    • C08K5/1345Carboxylic esters of phenolcarboxylic acids
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages
    • B29L2031/7128Bags, sacks, sachets

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Abstract

本发明提供一种增韧塑料编织袋的制备方法,包括如下步骤:S1:将聚丙烯原料、填充母料、增韧剂干燥后投入挤出机,经过模头成型挤出为薄膜,经过牵引制备出聚丙烯成品扁丝;S2在圆织机上织造出编织筒布卷,然后按照规定裁剪;S3:将热熔胶黏层原料和增韧层原料投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;S4:将圆筒形编织袋套接在内覆膜袋体上;S5:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,压合;S6:再经过裁剪、印刷、缝纫等工序,制备成成品塑料编织袋。本发明提供一种抗拉伸撕裂性能强、韧性高、内覆膜粘接牢固的塑料编织袋。

Description

一种增韧塑料编织袋的制备方法
技术领域
本发明涉及塑料编织袋生产工艺技术领域,特别涉及一种增韧塑料编织袋的制备方法。
背景技术
塑料编织袋广泛应用于水泥、肥料、化工、管道、单丝、电线电缆、日用品等领域的产品包装。但是塑料编织袋在冬季低温时,容易出现发硬、发脆、脱膜、起皮、断裂等问题,在夏季高温、紫外线穿透力强时,容易出现老化、腐蚀、韧性差、强度低等问题。
因此需要生产一种抗拉伸撕裂性能强、韧性高、内覆膜粘接牢固的塑料编织袋。
发明内容
本发明的目的在于提供一种抗拉伸撕裂性能强、韧性高、内覆膜粘接牢固的塑料编织袋。
本发明的上述技术目的是通过以下技术方案得以实现的:一种增韧塑料编织袋的制备方法,包括如下步骤:
S1:制备扁丝:将聚丙烯原料、填充母料、增韧剂干燥后投入挤出机,经过模头成型挤出为薄膜,然后经过水冷却后,切割聚丙烯薄膜,对聚丙烯初生扁丝进行热牵伸和热定型,制备出聚丙烯成品扁丝;
S2:编织:聚丙烯成品扁丝为经线和纬线,在圆织机上织造出编织筒布卷,然后按照规定裁剪;
S3:制备内覆膜袋体:将热熔胶黏层原料和增韧层原料投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;
S4:套上内覆膜:将圆筒形编织袋套接在内覆膜袋体上;
S5:加热热熔:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,再经压合生产出带有内覆膜的塑料编织袋;
S6:制备成品:再经过裁剪、印刷、缝纫等工序,制备成带彩印的塑料编织袋。
作为本发明的进一步设置,填充母料为纳米碳酸钙。
作为本发明的进一步设置,增韧剂为乙酸丁氧基乙酯。
作为本发明的进一步设置,按重量份数计,所述步骤S3中热熔胶黏层原料包括以下组分和配比:EVA树脂50-60份,丙烯酸丁酯10-15份、丙烯酸羟丙酯5-10份、交联剂1-5份。
作为本发明的进一步设置,还包括甲基丙烯酸乙基己酯3-8份。
作为本发明的进一步设置,交联剂为甲基丙烯酸缩水甘油酯。
作为本发明的进一步设置,按重量份数计,所述步骤S3中增韧层原料包括以下组分和配比:聚乙烯50-60份,添加剂3-8份,填充料1-5份。
作为本发明的进一步设置,添加剂为四丁基苯酚羟基苯甲酸酯。
本发明的有益效果是:
1.本发明采用增韧剂乙酸丁氧基乙酯,弹性体作为应力集中中心源,导致银纹和剪切带的生成,改变材料的断裂、破坏形式,在银纹生成、支化过程中会吸收大量能量,从而增强了抵御外部受力的能力,提高塑料编织袋的韧性。
2.本发明采用甲基丙烯酸乙基己酯作为胶黏活性剂,甲基丙烯酸乙基己酯分子交联点增多,与-COOCH3发生交联反应的几率变大,使得-COOCH3比率降低,亲水性下降,分散作用减弱,也使大分子易缠结在一起,形成致密的网状结构,交联网状结构缠绕在一起,提高了内覆膜的剥离强度,提高了内覆膜黏附在塑料编织袋的稳定性。
3.本发明采用添加剂四丁基苯酚羟基苯甲酸酯,可将酚羟基引入聚乙烯树脂中,增加内覆膜的柔性链段的比例,从而提高内覆膜的挠度,提高内覆膜的成膜从能,同时提高内覆膜的韧性,防止内覆膜盛装尖锐物件时刮伤内覆膜。
具体实施方式
下面将结合具体实施例对本发明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的一部分实施例,而不是全部的实施例。基于本发明的实施例,本领域普通技术人员在没有作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。
一、实施例
实施例1
一种增韧塑料编织袋的制备方法,包括如下步骤:
S1:制备扁丝:将10kg聚丙烯原料、0.5kg填充母料纳米碳酸钙、0.3kg增韧剂乙酸丁氧基乙酯干燥后投入挤出机,经过模头成型挤出为薄膜,然后经过水冷却后,切割聚丙烯薄膜,对聚丙烯初生扁丝进行热牵伸和热定型,制备出聚丙烯成品扁丝;
S2:编织:聚丙烯成品扁丝为经线和纬线,在圆织机上织造出编织筒布卷,然后按照规定裁剪;
S3:制备内覆膜袋体:将热熔胶黏层原料EVA树脂500g,丙烯酸丁酯100g、丙烯酸羟丙酯50g、甲基丙烯酸乙基己酯30g、交联剂甲基丙烯酸缩水甘油酯10g和增韧层原料聚乙烯500g,添加剂四丁基苯酚羟基苯甲酸酯30g,填充料高岭土10g投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;
S4:套上内覆膜:将圆筒形编织袋套接在内覆膜袋体上;
S5:加热热熔:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,再经压合生产出带有内覆膜的塑料编织袋;
S6:制备成品:再经过裁剪、印刷、缝纫等工序,制备成带彩印的塑料编织袋。
实施例2
一种增韧塑料编织袋的制备方法,包括如下步骤:
S1:制备扁丝:将10kg聚丙烯原料、1kg填充母料纳米碳酸钙、0.5kg增韧剂乙酸丁氧基乙酯干燥后投入挤出机,经过模头成型挤出为薄膜,然后经过水冷却后,切割聚丙烯薄膜,对聚丙烯初生扁丝进行热牵伸和热定型,制备出聚丙烯成品扁丝;
S2:编织:聚丙烯成品扁丝为经线和纬线,在圆织机上织造出编织筒布卷,然后按照规定裁剪;
S3:制备内覆膜袋体:将热熔胶黏层原料EVA树脂600g,丙烯酸丁酯150g、丙烯酸羟丙酯100g、甲基丙烯酸乙基己酯80g、交联剂甲基丙烯酸缩水甘油酯50g和增韧层原料聚乙烯600g,添加剂四丁基苯酚羟基苯甲酸酯80g,填充料高岭土50g投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;
S4:套上内覆膜:将圆筒形编织袋套接在内覆膜袋体上;
S5:加热热熔:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,再经压合生产出带有内覆膜的塑料编织袋;
S6:制备成品:再经过裁剪、印刷、缝纫等工序,制备成带彩印的塑料编织袋。
实施例3
一种增韧塑料编织袋的制备方法,包括如下步骤:
S1:制备扁丝:将10kg聚丙烯原料、0.8kg填充母料纳米碳酸钙、0.4kg增韧剂乙酸丁氧基乙酯干燥后投入挤出机,经过模头成型挤出为薄膜,然后经过水冷却后,切割聚丙烯薄膜,对聚丙烯初生扁丝进行热牵伸和热定型,制备出聚丙烯成品扁丝;
S2:编织:聚丙烯成品扁丝为经线和纬线,在圆织机上织造出编织筒布卷,然后按照规定裁剪;
S3:制备内覆膜袋体:将热熔胶黏层原料EVA树脂550g,丙烯酸丁酯120g、丙烯酸羟丙酯80g、甲基丙烯酸乙基己酯50g、交联剂甲基丙烯酸缩水甘油酯20g和增韧层原料聚乙烯550g,添加剂四丁基苯酚羟基苯甲酸酯50g,填充料高岭土30g投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;
S4:套上内覆膜:将圆筒形编织袋套接在内覆膜袋体上;
S5:加热热熔:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,再经压合生产出带有内覆膜的塑料编织袋;
S6:制备成品:再经过裁剪、印刷、缝纫等工序,制备成带彩印的塑料编织袋。
实施例4
一种增韧塑料编织袋的制备方法,包括如下步骤:
S1:制备扁丝:将10kg聚丙烯原料、0.8kg填充母料纳米碳酸钙干燥后投入挤出机,经过模头成型挤出为薄膜,然后经过水冷却后,切割聚丙烯薄膜,对聚丙烯初生扁丝进行热牵伸和热定型,制备出聚丙烯成品扁丝;
S2:编织:聚丙烯成品扁丝为经线和纬线,在圆织机上织造出编织筒布卷,然后按照规定裁剪;
S3:制备内覆膜袋体:将热熔胶黏层原料EVA树脂550g,丙烯酸丁酯120g、丙烯酸羟丙酯80g、甲基丙烯酸乙基己酯50g、交联剂甲基丙烯酸缩水甘油酯20g和增韧层原料聚乙烯550g,添加剂四丁基苯酚羟基苯甲酸酯50g,填充料高岭土30g投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;
S4:套上内覆膜:将圆筒形编织袋套接在内覆膜袋体上;
S5:加热热熔:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,再经压合生产出带有内覆膜的塑料编织袋;
S6:制备成品:再经过裁剪、印刷、缝纫等工序,制备成带彩印的塑料编织袋。
实施例5
一种增韧塑料编织袋的制备方法,包括如下步骤:
S1:制备扁丝:将10kg聚丙烯原料、0.8kg填充母料纳米碳酸钙、0.4kg增韧剂乙酸丁氧基乙酯干燥后投入挤出机,经过模头成型挤出为薄膜,然后经过水冷却后,切割聚丙烯薄膜,对聚丙烯初生扁丝进行热牵伸和热定型,制备出聚丙烯成品扁丝;
S2:编织:聚丙烯成品扁丝为经线和纬线,在圆织机上织造出编织筒布卷,然后按照规定裁剪;
S3:制备内覆膜袋体:将热熔胶黏层原料EVA树脂550g,丙烯酸丁酯120g、丙烯酸羟丙酯80g、交联剂甲基丙烯酸缩水甘油酯20g和增韧层原料聚乙烯550g,添加剂四丁基苯酚羟基苯甲酸酯50g,填充料高岭土30g投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;
S4:套上内覆膜:将圆筒形编织袋套接在内覆膜袋体上;
S5:加热热熔:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,再经压合生产出带有内覆膜的塑料编织袋;
S6:制备成品:再经过裁剪、印刷、缝纫等工序,制备成带彩印的塑料编织袋。
实施例6
一种增韧塑料编织袋的制备方法,包括如下步骤:
S1:制备扁丝:将10kg聚丙烯原料、0.8kg填充母料纳米碳酸钙、0.4kg增韧剂乙酸丁氧基乙酯干燥后投入挤出机,经过模头成型挤出为薄膜,然后经过水冷却后,切割聚丙烯薄膜,对聚丙烯初生扁丝进行热牵伸和热定型,制备出聚丙烯成品扁丝;
S2:编织:聚丙烯成品扁丝为经线和纬线,在圆织机上织造出编织筒布卷,然后按照规定裁剪;
S3:制备内覆膜袋体:将热熔胶黏层原料EVA树脂550g,丙烯酸丁酯120g、丙烯酸羟丙酯80g、甲基丙烯酸乙基己酯50g、交联剂甲基丙烯酸缩水甘油酯20g和增韧层原料聚乙烯550g,填充料高岭土30g投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;
S4:套上内覆膜:将圆筒形编织袋套接在内覆膜袋体上;
S5:加热热熔:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,再经压合生产出带有内覆膜的塑料编织袋;
S6:制备成品:再经过裁剪、印刷、缝纫等工序,制备成带彩印的塑料编织袋。。
实施例7
一种增韧塑料编织袋的制备方法,包括如下步骤:
S1:制备扁丝:将10kg聚丙烯原料、0.8kg填充母料纳米碳酸钙干燥后投入挤出机,经过模头成型挤出为薄膜,然后经过水冷却后,切割聚丙烯薄膜,对聚丙烯初生扁丝进行热牵伸和热定型,制备出聚丙烯成品扁丝;
S2:编织:聚丙烯成品扁丝为经线和纬线,在圆织机上织造出编织筒布卷,然后按照规定裁剪;
S3:制备内覆膜袋体:将热熔胶黏层原料EVA树脂550g,丙烯酸丁酯120g、丙烯酸羟丙酯80g、交联剂甲基丙烯酸缩水甘油酯20g和增韧层原料聚乙烯550g,填充料高岭土30g投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;
S4:套上内覆膜:将圆筒形编织袋套接在内覆膜袋体上;
S5:加热热熔:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,再经压合生产出带有内覆膜的塑料编织袋;
S6:制备成品:再经过裁剪、印刷、缝纫等工序,制备成带彩印的塑料编织袋。
将实施例1-7按照制备工艺制备试样,根据《GB8808-1988软质复合塑料材料剥离试验方法标准方法》、薄膜拉伸性能测试采用《GB/T-1040.3-2006塑料-拉伸性能的测定》测试,结果如表1所示。
表1试样各项性能的测定
由表1可知,最佳实施例是实施例2,采用本发明方案制备的塑料编织袋的拉伸强度明显提高,横向拉伸强度较实施例7最高增加47.38%,纵向拉伸强度较实施例7最高增加39.48%,断裂伸长率最高增加129.94%,因此,本发明明显提高了塑料编织袋的机械性能,具备良好的市场前景。

Claims (8)

1.一种增韧塑料编织袋的制备方法,其特征在于,包括如下步骤:
S1:制备扁丝:将聚丙烯原料、填充母料、增韧剂干燥后投入挤出机,经过模头成型挤出为薄膜,然后经过水冷却后,切割聚丙烯薄膜,对聚丙烯初生扁丝进行热牵伸和热定型,制备出聚丙烯成品扁丝;
S2:编织:聚丙烯成品扁丝为经线和纬线,在圆织机上织造出编织筒布卷,然后按照规定裁剪;
S3:制备内覆膜袋体:将热熔胶黏层原料和增韧层原料投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层;
S4:套上内覆膜:将圆筒形编织袋套接在内覆膜袋体上;
S5:加热热熔:将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,再经压合生产出带有内覆膜的塑料编织袋;
S6:制备成品:再经过裁剪、印刷、缝纫等工序,制备成带彩印的塑料编织袋。
2.根据权利要求1所述的增韧塑料编织袋的制备方法,其特征在于,所述填充母料为纳米碳酸钙。
3.根据权利要求1所述的增韧塑料编织袋的制备方法,其特征在于,所述增韧剂为乙酸丁氧基乙酯。
4.根据权利要求1所述的增韧塑料编织袋的制备方法,其特征在于,按重量份数计,步骤S3中热熔胶黏层原料包括以下组分和配比:EVA树脂50-60份,丙烯酸丁酯10-15份、丙烯酸羟丙酯5-10份、交联剂1-5份。
5.根据权利要求4所述的增韧塑料编织袋的制备方法,其特征在于,还包括甲基丙烯酸乙基己酯3-8份。
6.根据权利要求4所述的增韧塑料编织袋的制备方法,其特征在于,所述交联剂为甲基丙烯酸缩水甘油酯。
7.根据权利要求1所述的增韧塑料编织袋的制备方法,其特征在于,按重量份数计,步骤S3中增韧层原料包括以下组分和配比:聚乙烯50-60份,添加剂3-8份,填充料1-5份。
8.根据权利要求7所述的增韧塑料编织袋的制备方法,其特征在于,添加剂为四丁基苯酚羟基苯甲酸酯。
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CN114229246A (zh) * 2021-12-21 2022-03-25 石家庄育才药用包装材料股份有限公司 缓冲液用集装袋

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