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CN106012690A - 一种抗紫外线离型纸及其制备方法 - Google Patents

一种抗紫外线离型纸及其制备方法 Download PDF

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CN106012690A
CN106012690A CN201610324534.9A CN201610324534A CN106012690A CN 106012690 A CN106012690 A CN 106012690A CN 201610324534 A CN201610324534 A CN 201610324534A CN 106012690 A CN106012690 A CN 106012690A
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pet
parts
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廖平湘
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Hunan Province And New Material 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
    • B29C48/022Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/36Layered products comprising a layer of synthetic resin comprising polyesters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/06Interconnection of layers permitting easy separation
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00Coated paper; Coating material
    • D21H19/10Coatings without pigments
    • D21H19/14Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00Coated paper; Coating material
    • D21H19/10Coatings without pigments
    • D21H19/14Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/16Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising curable or polymerisable compounds
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00Coated paper; Coating material
    • D21H19/10Coatings without pigments
    • D21H19/14Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/32Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming a linkage containing silicon in the main chain of the macromolecule
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22Addition to the formed paper
    • D21H23/52Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/64Addition to the formed paper by contacting paper with a device carrying the material the material being non-fluent at the moment of transfer, e.g. in form of preformed, at least partially hardened coating
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/001Release paper
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30Multi-ply
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/003PET, i.e. poylethylene terephthalate
    • 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
    • B29L2007/00Flat articles, e.g. films or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/304Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558Impact strength, toughness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/71Resistive to light or to UV

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Abstract

本发明公开了一种抗紫外线离型纸及其制备方法,抗紫外线离型纸包括离型纸原纸、淋膜层、离型层和PET薄膜层,PET薄膜层按照重量份的原料包括:导电聚合物树脂、硅烷偶联剂、乙烯基有机硅树脂、复合稳定剂、润滑剂、丙三醇、增韧剂、PET紫外线及近红外线阻隔母粒、PET切片、改性松香树脂、助剂;PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子、氧化锡锑纳米粒子、紫外吸收剂。本发明通过对红外辐射和紫外线的吸收或反射,达到在较小添加量下的前提下具有最佳的隔热性能和光学性能,得到的离型纸能够抗撕裂,而且通过增加增韧剂使得离型纸不仅具备更好的柔韧性,还有耐紫外线老化的作用。

Description

一种抗紫外线离型纸及其制备方法
技术领域
本发明涉及一种离型纸的制备方法,具体是一种抗紫外线离型纸及其制备方法。
背景技术
随着科技的不断进步,离型纸的应用越来越广泛,特别是在食品、化工、电子等的包装领域,但是目前的离型纸由于缺乏抗紫外线功能,因此容易被紫外线破坏从而老化、破损会影响到进行包装后的产品遭到损坏,因此为了扩大离型纸的应用领域,一种能抗紫外线的离型纸亟待出现。
PET薄膜是一种性能比较全面的包装薄膜,其透明性好,有光泽;具有良好的气密性和保香性,同时具有优良的机械性能、耐热性、耐寒性和耐化学药品性,具有优良的透明度、高强度、高阻隔性以及加工性能好的特点而被广泛应用。目前,PET薄膜广泛应用于磁记录、感光材料、电子、电气绝缘、工业用膜、包装装饰等领域,随着PET薄膜新功能的研究,PET薄膜开始应用于玻璃领域,制造成一种节能安全玻璃贴膜,将它贴到普通浮法玻璃上,可以改变浮法玻璃的物理性能,使之成为隔热节能、防爆、防紫外线、美化外观的作用,但是,该贴膜防紫外线功能较差,光调解率较低,而且不能防红外线,无法满足现代人的需要。
发明内容
本发明的目的在于提供一种柔韧性好、耐酸碱性强的抗紫外线离型纸及其制备方法,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:
一种抗紫外线离型纸,包括离型纸原纸、淋膜层、离型层和PET薄膜层,所述淋膜层位于离型纸原纸的表面,所述离型层位于淋膜层的表面,所述PET薄膜层涂布在离型层的表面;所述PET薄膜层按照重量份的原料包括:导电聚合物树脂20-40份、硅烷偶联剂10-20份、乙烯基有机硅树脂3-5份、复合稳定剂1.5-2.5份、润滑剂1-2份、丙三醇0.03-0.07份、增韧剂8-12份、PET紫外线及近红外线阻隔母粒21-37份、PET切片80-100份、改性松香树脂20-30份、助剂4-6份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子10-20份、氧化锡锑纳米粒子10-15份、紫外吸收剂1-2份。
作为本发明进一步的方案:所述PET薄膜层按照重量份的原料包括:导电聚合物树脂25-35份、硅烷偶联剂12-18份、乙烯基有机硅树脂3.5-4.5份、复合稳定剂1.8-2.2份、润滑剂1.2-1.8份、丙三醇0.04-0.06份、增韧剂9-11份、PET紫外线及近红外线阻隔母粒25.2-37.8份、PET切片85-95份、改性松香树脂22-28份、助剂4.5-5.5份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子12-18份、氧化锡锑纳米粒子12-18份、紫外吸收剂1.2-1.8份。
作为本发明进一步的方案:所述PET薄膜层按照重量份的原料包括:导电聚合物树脂30份、硅烷偶联剂15份、乙烯基有机硅树脂4份、复合稳定剂2份、润滑剂1.5份、丙三醇0.05份、增韧剂10份、PET紫外线及近红外线阻隔母粒31.5份、PET切片90份、改性松香树脂25份、助剂5份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子15份、氧化锡锑纳米粒子15份、紫外吸收剂1.5份。
作为本发明再进一步的方案:所述助剂为二氧化硅、碳酸钙、碳酸镁、碳酸钡、硫酸钙、硫酸镁、高岭土、氧化铝、氧化钛中的一种或两种以上。
所述抗紫外线离型纸的制备方法,具体步骤如下:
(1)将离型纸原纸一面或两面涂布一层淋膜层,然后在淋膜层表面用离型剂涂布一层离型层,离型剂的涂布量为0.4-0.6g/m2
(2)在涂抹离型层后对其进行超级压光,经过温度为210-250℃加热架桥、温度为330-350℃加热熔融后,再加8-12Mpa的压力将其挤出;
(3)按照重量份称取PET薄膜层的原料;
(4)将导电聚合物树脂、乙烯基有机硅树脂、硅烷偶联剂、复合稳定剂、润滑剂、丙三醇、增韧剂、PET紫外线及近红外线阻隔母粒、PET切片、改性松香树脂和助剂通过高速混合机搅拌20-30min,充分混合得PET树脂混合物;
(5)将得到的PET树脂混合物通过真空送料机输送到螺杆挤出机喂料器中,再通过喂料器进入真空排气性单螺杆挤出机;
(6)真空排气性单螺杆挤出机设置的条件为长径比为38:1,一区加工温度设置为270-290℃,二、三和四区加工温度设置为290-310℃,五、六区加工温度设置为300-320℃,模头加工温度为315-325℃,经过混炼、排气、流延、横纵向拉伸、冷却定型,制备得PET膜;
(7)将PET薄膜覆盖在离型层的表面,并在20-25℃下晾干得到抗紫外线离型纸。
与现有技术相比,本发明的有益效果是:
本发明采用的艳钨青铜复合粒子充分发挥各自的功能,通过对红外辐射和紫外线的吸收或反射,达到在较小添加量下的前提下具有最佳的隔热性能和光学性能,得到的离型纸能够抗撕裂,而且通过增加增韧剂使得离型纸不仅具备更好的柔韧性,还有耐紫外线老化的作用。
具体实施方式
下面结合具体实施方式对本专利的技术方案作进一步详细地说明。
实施例1
一种抗紫外线离型纸,包括离型纸原纸、淋膜层、离型层和PET薄膜层,所述淋膜层位于离型纸原纸的表面,所述离型层位于淋膜层的表面,所述PET薄膜层涂布在离型层的表面;所述PET薄膜层按照重量份的原料包括:导电聚合物树脂20份、硅烷偶联剂10份、乙烯基有机硅树脂3份、复合稳定剂1.5份、润滑剂1份、丙三醇0.03份、增韧剂8份、PET紫外线及近红外线阻隔母粒21份、PET切片80份、改性松香树脂20份、助剂4份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子10份、氧化锡锑纳米粒子10份、紫外吸收剂1份。
所述抗紫外线离型纸的制备方法,具体步骤如下:
(1)将离型纸原纸一面或两面涂布一层淋膜层,然后在淋膜层表面用离型剂涂布一层离型层,离型剂的涂布量为0.4g/m2
(2)在涂抹离型层后对其进行超级压光,经过温度为210℃加热架桥、温度为330℃加热熔融后,再加8Mpa的压力将其挤出;
(3)按照重量份称取PET薄膜层的原料;
(4)将导电聚合物树脂、乙烯基有机硅树脂、硅烷偶联剂、复合稳定剂、润滑剂、丙三醇、增韧剂、PET紫外线及近红外线阻隔母粒、PET切片、改性松香树脂和助剂通过高速混合机搅拌20min,充分混合得PET树脂混合物;
(5)将得到的PET树脂混合物通过真空送料机输送到螺杆挤出机喂料器中,再通过喂料器进入真空排气性单螺杆挤出机;
(6)真空排气性单螺杆挤出机设置的条件为长径比为38:1,一区加工温度设置为270℃,二、三和四区加工温度设置为290℃,五、六区加工温度设置为300℃,模头加工温度为315℃,经过混炼、排气、流延、横纵向拉伸、冷却定型,制备得PET膜;
(7)将PET薄膜覆盖在离型层的表面,并在20℃下晾干得到抗紫外线离型纸。
实施例2
一种抗紫外线离型纸,包括离型纸原纸、淋膜层、离型层和PET薄膜层,所述淋膜层位于离型纸原纸的表面,所述离型层位于淋膜层的表面,所述PET薄膜层涂布在离型层的表面;所述PET薄膜层按照重量份的原料包括:导电聚合物树脂25份、硅烷偶联剂12份、乙烯基有机硅树脂3.5份、复合稳定剂1.8份、润滑剂1.2份、丙三醇0.04份、增韧剂9份、PET紫外线及近红外线阻隔母粒25.2份、PET切片85份、改性松香树脂22份、助剂4.5份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子12份、氧化锡锑纳米粒子12份、紫外吸收剂1.2份。
所述抗紫外线离型纸的制备方法,具体步骤如下:
(1)将离型纸原纸一面或两面涂布一层淋膜层,然后在淋膜层表面用离型剂涂布一层离型层,离型剂的涂布量为0.45g/m2
(2)在涂抹离型层后对其进行超级压光,经过温度为220℃加热架桥、温度为335℃加热熔融后,再加9Mpa的压力将其挤出;
(3)按照重量份称取PET薄膜层的原料;
(4)将导电聚合物树脂、乙烯基有机硅树脂、硅烷偶联剂、复合稳定剂、润滑剂、丙三醇、增韧剂、PET紫外线及近红外线阻隔母粒、PET切片、改性松香树脂和助剂通过高速混合机搅拌22min,充分混合得PET树脂混合物;
(5)将得到的PET树脂混合物通过真空送料机输送到螺杆挤出机喂料器中,再通过喂料器进入真空排气性单螺杆挤出机;
(6)真空排气性单螺杆挤出机设置的条件为长径比为38:1,一区加工温度设置为275℃,二、三和四区加工温度设置为295℃,五、六区加工温度设置为305℃,模头加工温度为318℃,经过混炼、排气、流延、横纵向拉伸、冷却定型,制备得PET膜;
(7)将PET薄膜覆盖在离型层的表面,并在21℃下晾干得到抗紫外线离型纸。
实施例3
一种抗紫外线离型纸,包括离型纸原纸、淋膜层、离型层和PET薄膜层,所述淋膜层位于离型纸原纸的表面,所述离型层位于淋膜层的表面,所述PET薄膜层涂布在离型层的表面;所述PET薄膜层按照重量份的原料包括:导电聚合物树脂30份、硅烷偶联剂15份、乙烯基有机硅树脂4份、复合稳定剂2份、润滑剂1.5份、丙三醇0.05份、增韧剂10份、PET紫外线及近红外线阻隔母粒31.5份、PET切片90份、改性松香树脂25份、助剂5份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子15份、氧化锡锑纳米粒子15份、紫外吸收剂1.5份。
所述抗紫外线离型纸的制备方法,具体步骤如下:
(1)将离型纸原纸一面或两面涂布一层淋膜层,然后在淋膜层表面用离型剂涂布一层离型层,离型剂的涂布量为0.5g/m2
(2)在涂抹离型层后对其进行超级压光,经过温度为230℃加热架桥、温度为340℃加热熔融后,再加10Mpa的压力将其挤出;
(3)按照重量份称取PET薄膜层的原料;
(4)将导电聚合物树脂、乙烯基有机硅树脂、硅烷偶联剂、复合稳定剂、润滑剂、丙三醇、增韧剂、PET紫外线及近红外线阻隔母粒、PET切片、改性松香树脂和助剂通过高速混合机搅拌25min,充分混合得PET树脂混合物;
(5)将得到的PET树脂混合物通过真空送料机输送到螺杆挤出机喂料器中,再通过喂料器进入真空排气性单螺杆挤出机;
(6)真空排气性单螺杆挤出机设置的条件为长径比为38:1,一区加工温度设置为280℃,二、三和四区加工温度设置为300℃,五、六区加工温度设置为310℃,模头加工温度为320℃,经过混炼、排气、流延、横纵向拉伸、冷却定型,制备得PET膜;
(7)将PET薄膜覆盖在离型层的表面,并在22℃下晾干得到抗紫外线离型纸。
实施例4
一种抗紫外线离型纸,包括离型纸原纸、淋膜层、离型层和PET薄膜层,所述淋膜层位于离型纸原纸的表面,所述离型层位于淋膜层的表面,所述PET薄膜层涂布在离型层的表面;所述PET薄膜层按照重量份的原料包括:导电聚合物树脂35份、硅烷偶联剂18份、乙烯基有机硅树脂4.5份、复合稳定剂2.2份、润滑剂1.8份、丙三醇0.06份、增韧剂11份、PET紫外线及近红外线阻隔母粒37.8份、PET切片95份、改性松香树脂28份、助剂5.5份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子18份、氧化锡锑纳米粒子18份、紫外吸收剂1.8份。
所述抗紫外线离型纸的制备方法,具体步骤如下:
(1)将离型纸原纸一面或两面涂布一层淋膜层,然后在淋膜层表面用离型剂涂布一层离型层,离型剂的涂布量为0.55g/m2
(2)在涂抹离型层后对其进行超级压光,经过温度为240℃加热架桥、温度为345℃加热熔融后,再加11Mpa的压力将其挤出;
(3)按照重量份称取PET薄膜层的原料;
(4)将导电聚合物树脂、乙烯基有机硅树脂、硅烷偶联剂、复合稳定剂、润滑剂、丙三醇、增韧剂、PET紫外线及近红外线阻隔母粒、PET切片、改性松香树脂和助剂通过高速混合机搅拌28min,充分混合得PET树脂混合物;
(5)将得到的PET树脂混合物通过真空送料机输送到螺杆挤出机喂料器中,再通过喂料器进入真空排气性单螺杆挤出机;
(6)真空排气性单螺杆挤出机设置的条件为长径比为38:1,一区加工温度设置为285℃,二、三和四区加工温度设置为305℃,五、六区加工温度设置为315℃,模头加工温度为322℃,经过混炼、排气、流延、横纵向拉伸、冷却定型,制备得PET膜;
(7)将PET薄膜覆盖在离型层的表面,并在24℃下晾干得到抗紫外线离型纸。
实施例5
一种抗紫外线离型纸,包括离型纸原纸、淋膜层、离型层和PET薄膜层,所述淋膜层位于离型纸原纸的表面,所述离型层位于淋膜层的表面,所述PET薄膜层涂布在离型层的表面;所述PET薄膜层按照重量份的原料包括:导电聚合物树脂40份、硅烷偶联剂20份、乙烯基有机硅树脂5份、复合稳定剂2.5份、润滑剂2份、丙三醇0.07份、增韧剂12份、PET紫外线及近红外线阻隔母粒37份、PET切片100份、改性松香树脂30份、助剂6份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子20份、氧化锡锑纳米粒子15份、紫外吸收剂2份。
所述抗紫外线离型纸的制备方法,具体步骤如下:
(1)将离型纸原纸一面或两面涂布一层淋膜层,然后在淋膜层表面用离型剂涂布一层离型层,离型剂的涂布量为0.6g/m2
(2)在涂抹离型层后对其进行超级压光,经过温度为250℃加热架桥、温度为350℃加热熔融后,再加12Mpa的压力将其挤出;
(3)按照重量份称取PET薄膜层的原料;
(4)将导电聚合物树脂、乙烯基有机硅树脂、硅烷偶联剂、复合稳定剂、润滑剂、丙三醇、增韧剂、PET紫外线及近红外线阻隔母粒、PET切片、改性松香树脂和助剂通过高速混合机搅拌30min,充分混合得PET树脂混合物;
(5)将得到的PET树脂混合物通过真空送料机输送到螺杆挤出机喂料器中,再通过喂料器进入真空排气性单螺杆挤出机;
(6)真空排气性单螺杆挤出机设置的条件为长径比为38:1,一区加工温度设置为290℃,二、三和四区加工温度设置为310℃,五、六区加工温度设置为320℃,模头加工温度为325℃,经过混炼、排气、流延、横纵向拉伸、冷却定型,制备得PET膜;
(7)将PET薄膜覆盖在离型层的表面,并在25℃下晾干得到抗紫外线离型纸。
所述助剂为二氧化硅、碳酸钙、碳酸镁、碳酸钡、硫酸钙、硫酸镁、高岭土、氧化铝、氧化钛中的一种或两种以上。
本发明采用的艳钨青铜复合粒子充分发挥各自的功能,通过对红外辐射和紫外线的吸收或反射,达到在较小添加量下的前提下具有最佳的隔热性能和光学性能,得到的离型纸能够抗撕裂,而且通过增加增韧剂使得离型纸不仅具备更好的柔韧性,还有耐紫外线老化的作用。
上面对本专利的较佳实施方式作了详细说明,但是本专利并不限于上述实施方式,在本领域的普通技术人员所具备的知识范围内,还可以在不脱离本专利宗旨的前提下作出各种变化。

Claims (5)

1.一种抗紫外线离型纸,其特征在于,包括离型纸原纸、淋膜层、离型层和PET薄膜层,所述淋膜层位于离型纸原纸的表面,所述离型层位于淋膜层的表面,所述PET薄膜层涂布在离型层的表面;所述PET薄膜层按照重量份的原料包括:导电聚合物树脂20-40份、硅烷偶联剂10-20份、乙烯基有机硅树脂3-5份、复合稳定剂1.5-2.5份、润滑剂1-2份、丙三醇0.03-0.07份、增韧剂8-12份、PET紫外线及近红外线阻隔母粒21-37份、PET切片80-100份、改性松香树脂20-30份、助剂4-6份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子10-20份、氧化锡锑纳米粒子10-15份、紫外吸收剂1-2份。
2.根据权利要求1所述的抗紫外线离型纸,其特征在于,所述PET薄膜层按照重量份的原料包括:导电聚合物树脂25-35份、硅烷偶联剂12-18份、乙烯基有机硅树脂3.5-4.5份、复合稳定剂1.8-2.2份、润滑剂1.2-1.8份、丙三醇0.04-0.06份、增韧剂9-11份、PET紫外线及近红外线阻隔母粒25.2-37.8份、PET切片85-95份、改性松香树脂22-28份、助剂4.5-5.5份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子12-18份、氧化锡锑纳米粒子12-18份、紫外吸收剂1.2-1.8份。
3.根据权利要求1所述的抗紫外线离型纸,其特征在于,所述PET薄膜层按照重量份的原料包括:导电聚合物树脂30份、硅烷偶联剂15份、乙烯基有机硅树脂4份、复合稳定剂2份、润滑剂1.5份、丙三醇0.05份、增韧剂10份、PET紫外线及近红外线阻隔母粒31.5份、PET切片90份、改性松香树脂25份、助剂5份;所述PET紫外线及近红外线阻隔母粒按照重量份的原料包括:艳钨青铜纳米粒子15份、氧化锡锑纳米粒子15份、紫外吸收剂1.5份。
4.根据权利要求1-3任一所述的抗紫外线离型纸,其特征在于,所述助剂为二氧化硅、碳酸钙、碳酸镁、碳酸钡、硫酸钙、硫酸镁、高岭土、氧化铝、氧化钛中的一种或两种以上。
5.一种如权利要求1所述的抗紫外线离型纸的制备方法,其特征在于,具体步骤如下:
(1)将离型纸原纸一面或两面涂布一层淋膜层,然后在淋膜层表面用离型剂涂布一层离型层,离型剂的涂布量为0.4-0.6g/m2
(2)在涂抹离型层后对其进行超级压光,经过温度为210-250℃加热架桥、温度为330-350℃加热熔融后,再加8-12Mpa的压力将其挤出;
(3)按照重量份称取PET薄膜层的原料;
(4)将导电聚合物树脂、乙烯基有机硅树脂、硅烷偶联剂、复合稳定剂、润滑剂、丙三醇、增韧剂、PET紫外线及近红外线阻隔母粒、PET切片、改性松香树脂和助剂通过高速混合机搅拌20-30min,充分混合得PET树脂混合物;
(5)将得到的PET树脂混合物通过真空送料机输送到螺杆挤出机喂料器中,再通过喂料器进入真空排气性单螺杆挤出机;
(6)真空排气性单螺杆挤出机设置的条件为长径比为38:1,一区加工温度设置为270-290℃,二、三和四区加工温度设置为290-310℃,五、六区加工温度设置为300-320℃,模头加工温度为315-325℃,经过混炼、排气、流延、横纵向拉伸、冷却定型,制备得PET膜;
(7)将PET薄膜覆盖在离型层的表面,并在20-25℃下晾干得到抗紫外线离型纸。
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CN108978349A (zh) * 2018-09-27 2018-12-11 佛山九陌科技信息咨询有限公司 一种抗紫外线离型纸及其制备方法
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