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荧光增白剂在塑料制品中运用的办法


网址:http://www.scvc8.com  时间:2018-10-29 10:46:24

荧光增白剂在塑料制品中运用的办法
Application of fluorescent whitening agents in plastic products
荧光增白剂是一种无色的有机化合物,它能吸收人肉眼看不见的近紫外光(波长范围在300-400nm之间),再发射出人肉眼可见的蓝紫色荧光(波长范围在420-480nm之间)。荧光增白剂能明显的进步被作用物的白度和光泽,所以被广泛的用于纺织、造纸、塑料及合成洗涤剂等工业。荧光增白剂也能够被看作是一种白色染料,或者是白色的荧光染料,利用荧光给予视觉器官以添加白度的感觉。
Fluorescent whiteners are colorless organic compounds that absorb near ultraviolet light (wavelength range 300-400 nm) invisible to the naked eye and emit blue-purple fluorescence (wavelength range 420-480 nm) visible to the naked eye. Fluorescent whiteners are widely used in textile, paper, plastic and synthetic detergent industries because of their remarkable improvement in whiteness and gloss. Fluorescent whiteners can also be considered a white dye, or a white fluorescent dye, which uses fluorescence to give the visual organs a sense of whiteness.
一般来说荧光增白剂在塑猜中的运用办法有三种,分别为:干法增白、湿法增白和色母粒增白。接下来,小编就具体的为我们介绍下三种工艺的不同,以及试用的终端产品。
Generally speaking, there are three ways to use fluorescent whitening agents in plastic guessing: dry whitening, wet whitening and color masterbatch whitening. Next, the small edition of the specific for us to introduce the following three different processes, as well as the trial terminal products.
许多塑料终端生产厂家关于怎么正确的运用荧光增白剂不甚了解,今日就为我们遍及几种荧光增白剂在塑猜中常用的运用办法,以及终端客户应怎么依据产品功能挑选比较佳的办法。
Many plastic terminal manufacturers do not know how to use fluorescent whiteners correctly. Today, we are looking at the common methods of using fluorescent whiteners in plastic guessing, and how to choose the best method according to the function of the product.
1.塑料干法增白就是将一定量的荧光增白剂干粉直接添加于成塑前的塑料基材中,先与塑料基材进行混合,待挤出机达到塑料镕融温度时,将混合料挤入螺杆熔融,以使荧光增白剂在熔体中均匀分布,比较终进行造粒或限制成型。干法增白剂首要用于硬质聚录乙烯、聚乙烯、聚丙烯、ABS以及其他热塑性树脂的注塑成型增白。用于干法增白剂的荧光增白剂价格相对便宜,但是有粉尘飞散性大、污染环境的缺陷。
1. Plastic dry whitening is to add a certain amount of fluorescent whitening agent dry powder directly to the plastic substrate before plasticizing, mix with the plastic substrate first, and when the extruder reaches the melting temperature of plastics, extrude the mixture into the screw to melt, so that fluorescent whitening agent evenly distributes in the melt, and finally granulate or restrict the molding. Dry whitening agents are mainly used for injection molding of rigid polyethylene, polyethylene, polypropylene, ABS and other thermoplastic resins. Fluorescent brighteners used as dry whiteners are relatively cheap, but they have the disadvantages of large dust dispersibility and environmental pollution.
荧光增白剂厂家
2.湿法增白为了改善涣散效果,有时还需要在荧光增白剂中参加一定量的粘合剂,使荧光增白剂较好地粘附于物料外表,以减少其粉尘飞扬和污染。也能够将荧光增白剂涣散在助剂溶液中,以助剂涣散体的形式分批参加,如用于软质聚录乙烯(PVC)中,可将其配成10%的邻苯二甲酸二辛酯增塑剂溶液后,再分批参加。在湿法增白中荧光增白剂呈纤细的涣散状浆料,因有非灰发性有机溶剂混入增塑剂中,所以有发黏的缺陷。这种办法首要用于软质聚录乙烯增白。
2. In order to improve the dispersing effect of wet whitening, some adhesives should be added to the fluorescent whitening agent to make the fluorescent whitening agent adhere to the material surface better, so as to reduce the dust flying and pollution. The fluorescent whitening agent can also be dispersed in the auxiliaries solution and participated in batches in the form of auxiliaries. For example, it can be used in flexible polyethylene (PVC) and mixed into 10% dioctyl phthalate plasticizer solution, then participated in batches. In wet whitening fluorescent whitening agent is a fine loose slurry, because there are non-gray organic solvents mixed into the plasticizer, so there is a defect of viscosity. This method is mainly used for soft vinyl polymerization and whitening.
3.现在塑料运用“色母粒”已成为塑料上色的中重要手法。在运用色母粒时,只要将色母粒和树脂按份额混合均匀,即可直接用来进行塑料制品的成型加工。少量的拌和只需用手,在加工量较大的情况下,为了确保色母粒的涣散性,能够运用机械拌和。色母粒与树脂塑料机械混合今后即可送到带预塑装置的注塑机,边预塑边上色。
3. now the use of plastic masterbatch has become an important method of plastic coloring. When using color masterbatch, as long as the color masterbatch and resin are mixed evenly according to the proportion, it can be directly used for plastic molding. A small amount of mixing only by hand, in the case of a large amount of processing, in order to ensure the dispersity of masterbatch, can use mechanical mixing. Color masterbatch and resin plastic mechanical mixing can be sent to the injection molding machine with pre-molding device, while pre-molding side color.
本文由山东吉凌化工178彩票注册http://www.scvc8.com整理,对荧光增白剂厂家感兴趣的朋友可以关注我们的栏目,我们将为您提供荧光增白剂相关新闻知识.
This article is compiled by Shandong Jiling Chemical Co., Ltd. http://www.scvc8.com. Friends interested in fluorescent brightener manufacturers can pay attention to our column, we will provide you with fluorescent brightener related news knowledge.

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