CN106280109A - 一种抗紫外线pvc热收缩膜及其制备方法 - Google Patents
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Abstract
本发明提供一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂80~110份,助剂1~5份,润滑剂2~5份,增塑剂1~4份,抗氧剂2.5~6份,纳米二氧化钛15~25份,紫外线吸收剂5~15份。所述PVC热收缩膜抗冲击性强、韧性好,并且加入纳米二氧化钛以及紫外线吸收剂,具有优异的抗紫外线性能。
Description
技术领域
本发明涉及一种热收缩膜,具体涉及一种抗紫外线PVC热收缩膜及其制备方法。
背景技术
热收缩膜用于各种产品的销售和运输,其主要作用是稳固、遮盖和保护产品。收缩膜必须具有较高的耐穿刺性,良好的收缩性和一定的收缩应力。在收缩过程中,薄膜不能产生孔洞。在热收缩膜中,用途较为广泛的PVC热收缩膜强度高,弹性拉力大,对任何几何形状的商品都能裹紧,且可避免捆扎对商品造成的损伤,具有良好的防松散、防雨、防尘、防盗等效果;PVC收缩膜广泛应用于酒品,食品、运动用品、消毒餐具、电子电器、日用品、工艺品、保建品、音像制品、药品、文具、玩具、门户、塑胶五金、玻璃陶瓷等等各类商品的包装,使其外形更加鲜明美观,提高产品包装档次,对产品起防尘、乱花等保护作用。是目前较为理想的薄膜包装材料。然而现有的PVC热收缩膜使用寿命不长,容易老化,经不起风霜袭击和太阳曝晒,表面容易龟裂,因此我们急需研发一种具有优异抗紫外线性能的PVC热收缩膜。
发明内容
为解决上述存在的问题,本发明的目的在于提供一种抗紫外线PVC热收缩膜,所述PVC热收缩膜抗冲击性强、韧性好、且具有优异的抗紫外线性能。
为达到上述目的,本发明的技术方案是:
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂80~110份,助剂1~5份,润滑剂2~5份,增塑剂1~4份,抗氧剂2.5~6份,纳米二氧化钛15~25份,紫外线吸收剂5~15份。
优选地,所述热收缩膜包括以下重量配比的原料:PVC树脂90~100份,助剂2.5~3.5份,润滑剂3~4份,增塑剂2~3份,抗氧剂4~4.5份,纳米二氧化钛18~22份,紫外线吸收剂8~12份。
优选地,所述热收缩膜包括以下重量配比的原料:PVC树脂95份,助剂3份,润滑剂3.5份,增塑剂2.5份,抗氧剂4.2份,纳米二氧化钛20份,紫外线吸收剂10份。
进一步,所述助剂为HANKINS NCP-2。
另,所述润滑剂为硬脂酸锌或硬脂酸丁酯。
另有,所述增塑剂为邻苯二甲酸酯、脂肪族二元酸酯、柠檬酸酯、环氧酯、脂肪酸酯、聚酯增塑剂中的一种或几种的组合物。
再,所述抗氧剂为二苯胺。
再有,所述紫外线吸收剂为氯代苯并三唑类紫外线吸收剂。
本发明的另一目的在于提供一种如上所述PVC热收缩膜的制备方法,其原料易得、成本低廉且制备工艺简单,步骤如下:
(1)称取上述重量份的原料;
(2)在70~80℃往反应釜中加入PVC树脂、助剂、润滑剂、增塑剂、抗氧剂、纳米二氧化钛、紫外线吸收剂并以150~250rpm转速搅拌30~40min;
(3)将反应釜内温度升高至280~300℃,压力降到90Pa以下,在此条件下反应2.5~3h得到聚合熔体,然后将制备的聚合熔体挤出、切粒、干燥,得到PVC聚酯切片;
(4)将上述PVC聚酯切片熔融挤出、模头铸片、铸片缠卷、双向拉伸、冷却定型、测量厚度、收卷、分切复卷、包装、成品。
本发明的有益效果在于:
与现有技术相比,本发明所提供的PVC热收缩膜具有如下优点:(1)本发明的PVC热收缩膜,透明性好、收缩均匀且环保;(2)本发明的PVC热收缩膜,加入了纳米二氧化钛以及紫外线吸收剂,具有优异的抗紫外线性能 。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整的描述,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作出创造性劳动的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。
本发明的PVC热收缩膜的原料重量配比见下述具体的实施例。
实施例1
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂80份,助剂1份,润滑剂2份,增塑剂1份,抗氧剂2.5份,纳米二氧化钛15份,紫外线吸收剂5份。
实施例2
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂85份,助剂1.5份,润滑剂2.5份,增塑剂1.5份,抗氧剂2.8份,纳米二氧化钛16份,紫外线吸收剂6份。
实施例3
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂88份,助剂2份,润滑剂2.8份,增塑剂1.8份,抗氧剂3份,纳米二氧化钛17份,紫外线吸收剂7份。
实施例4
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂90份,助剂2.5份,润滑剂3份,增塑剂2份,抗氧剂4份,纳米二氧化钛18份,紫外线吸收剂8份。
实施例5
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂95份,助剂3份,润滑剂3.5份,增塑剂2.5份,抗氧剂4.2份,纳米二氧化钛20份,紫外线吸收剂10份。
实施例6
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂98份,助剂3.3份,润滑剂3.8份,增塑剂2.8份,抗氧剂4.4份,纳米二氧化钛20.5份,紫外线吸收剂11份。
实施例7
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂100份,助剂3.5份,润滑剂4份,增塑剂3份,抗氧剂4.5份,纳米二氧化钛22份,紫外线吸收剂12份。
实施例8
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂105份,助剂4份,润滑剂4.5份,增塑剂3.5份,抗氧剂5份,纳米二氧化钛23份,紫外线吸收剂13份。
实施例9
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂108份,助剂4.5份,润滑剂4.8份,增塑剂3.8份,抗氧剂5.5份,纳米二氧化钛24份,紫外线吸收剂13.5份。
实施例10
一种抗紫外线PVC热收缩膜,所述热收缩膜包括以下重量配比的原料:PVC树脂110份,助剂55份,润滑剂5份,增塑剂4份,抗氧剂6份,纳米二氧化钛25份,紫外线吸收剂15份。
本发明所述的PVC热收缩膜的制备方法为:
(1)称取上述重量份的原料;
(2)在70~80℃往反应釜中加入PVC树脂、助剂、润滑剂、增塑剂、抗氧剂、纳米二氧化钛、紫外线吸收剂并以150~250rpm转速搅拌30~40min;
(3)将反应釜内温度升高至280~300℃,压力降到90Pa以下,在此条件下反应2.5~3h得到聚合熔体,然后将制备的聚合熔体挤出、切粒、干燥,得到PVC聚酯切片;
(4)将上述PVC聚酯切片熔融挤出、模头铸片、铸片缠卷、双向拉伸、冷却定型、测量厚度、收卷、分切复卷、包装、成品。
需要说明的是,以上实施例仅用以说明本发明的技术方案而非限制。尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的范围,其均应涵盖在本发明的权利要求范围中。
Claims (9)
1.一种抗紫外线PVC热收缩膜,其特征在于,所述热收缩膜包括以下重量配比的原料:PVC树脂80~110份,助剂1~5份,润滑剂2~5份,增塑剂1~4份,抗氧剂2.5~6份,纳米二氧化钛15~25份,紫外线吸收剂5~15份。
2.根据权利要求1所述的一种抗紫外线PVC热收缩膜,其特征在于,所述热收缩膜包括以下重量配比的原料:PVC树脂90~100份,助剂2.5~3.5份,润滑剂3~4份,增塑剂2~3份,抗氧剂4~4.5份,纳米二氧化钛18~22份,紫外线吸收剂8~12份。
3.根据权利要求1所述的一种抗紫外线PVC热收缩膜,其特征在于,所述热收缩膜包括以下重量配比的原料:PVC树脂95份,助剂3份,润滑剂3.5份,增塑剂2.5份,抗氧剂4.2份,纳米二氧化钛20份,紫外线吸收剂10份。
4.根据权利要求1或2或3所述的一种抗紫外线PVC热收缩膜,其特征在于,所述助剂为HANKINS NCP-2。
5.根据权利要求1或2或3所述的一种抗紫外线PVC热收缩膜,其特征在于,所述润滑剂为硬脂酸锌或硬脂酸丁酯。
6.根据权利要求1或2或3所述的一种抗紫外线PVC热收缩膜,其特征在于,所述增塑剂为邻苯二甲酸酯、脂肪族二元酸酯、柠檬酸酯、环氧酯、脂肪酸酯、聚酯增塑剂中的一种或几种的组合物。
7.根据权利要求1或2或3所述的一种抗紫外线PVC热收缩膜,其特征在于,所述抗氧剂为二苯胺。
8.根据权利要求1或2或3所述的一种抗紫外线PVC热收缩膜,其特征在于,所述紫外线吸收剂为氯代苯并三唑类紫外线吸收剂。
9.权利要求1所述的抗紫外线PVC热收缩膜的制备方法,其特征在于,包括以下步骤:
称取上述重量份的原料;
在70~80℃往反应釜中加入PVC树脂、助剂、润滑剂、增塑剂、抗氧剂、纳米二氧化钛、紫外线吸收剂并以150~250rpm转速搅拌30~40min;
将反应釜内温度升高至280~300℃,压力降到90Pa以下,在此条件下反应2.5~3h得到聚合熔体,然后将制备的聚合熔体挤出、切粒、干燥,得到PVC聚酯切片;
将上述PVC聚酯切片熔融挤出、模头铸片、铸片缠卷、双向拉伸、冷却定型、测量厚度、收卷、分切复卷、包装、成品。
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Cited By (4)
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CN108485030A (zh) * | 2018-03-28 | 2018-09-04 | 浙江达因包装材料有限公司 | 一种碗面专用收缩膜的加工工艺 |
CN109354795A (zh) * | 2018-09-14 | 2019-02-19 | 安徽明诚塑业有限公司 | 一种抗紫外线pvc热收缩膜及其制备方法 |
CN109880253A (zh) * | 2019-02-15 | 2019-06-14 | 嘉兴新安包装材料有限公司 | 一种pvc热收缩膜及其制备方法 |
CN114806094A (zh) * | 2021-12-24 | 2022-07-29 | 江苏双星彩塑新材料股份有限公司 | 一种高收缩率聚酯热收缩薄膜及其制备方法 |
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CN103483743A (zh) * | 2013-09-29 | 2014-01-01 | 太仓市鸿运包装材料有限公司 | 一种pvc热收缩膜及其制备方法 |
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CN103483743A (zh) * | 2013-09-29 | 2014-01-01 | 太仓市鸿运包装材料有限公司 | 一种pvc热收缩膜及其制备方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108485030A (zh) * | 2018-03-28 | 2018-09-04 | 浙江达因包装材料有限公司 | 一种碗面专用收缩膜的加工工艺 |
CN109354795A (zh) * | 2018-09-14 | 2019-02-19 | 安徽明诚塑业有限公司 | 一种抗紫外线pvc热收缩膜及其制备方法 |
CN109880253A (zh) * | 2019-02-15 | 2019-06-14 | 嘉兴新安包装材料有限公司 | 一种pvc热收缩膜及其制备方法 |
CN109880253B (zh) * | 2019-02-15 | 2020-11-10 | 嘉兴新安包装材料有限公司 | 一种pvc热收缩膜及其制备方法 |
CN114806094A (zh) * | 2021-12-24 | 2022-07-29 | 江苏双星彩塑新材料股份有限公司 | 一种高收缩率聚酯热收缩薄膜及其制备方法 |
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