Introduction of UV absorbers and light stabilizers for agricultural film

2020.05.09



农膜的老化很大一部分是来自紫外线的照射,所以其配方中要添加紫外线吸收剂或光稳定剂。添加了紫外线吸收剂后,如同在农膜表面图上一层保护层一样,可以将紫外线加以吸收后转换成热能。紫外线吸收剂能有效的延长农膜的老化时间,甚至可以修补受伤的分子结构。
A large part of the aging of agricultural film comes from ultraviolet radiation, so ultraviolet absorbers or light stabilizers should be added to its formula. After adding UV absorbers, as a protective layer on the surface map of agricultural film, UV light can be absorbed and converted into heat energy. UV absorbers can effectively prolong the aging time of agricultural film, and even repair the damaged molecular structure.
受阻胺类光稳定剂(HALS)是20世纪70年代中期出现的一类新型高效稳定剂,用于塑料、橡胶等高分子材料的防老化,其光稳定效果是传统吸收型光稳定剂的2-4倍,且与许多树脂具有良好的相溶性,是目前发展最快的一类光稳定剂。
HALS is a new type of high efficient stabilizer which appeared in the mid-1970s. It is used in the anti-aging of plastics, rubber and other polymer materials. Its light stability effect is 2-4 times of that of the traditional absorption light stabilizer, and it has good compatibility with many resins. HALS is the fastest developing light stabilizer at present.
欧稳德LS 622,是一种低聚受阻胺光稳定剂,它广泛应用于聚烯烃,烯烃共聚物。该不影响最终产品的颜色和透明度,且易分散。欧稳德LS 944可以有效提高薄制品的光稳定性,尤其是纤维和薄膜制品。它是厚和薄制品的高效、长效热稳定剂,有良好的抗萃取性。
OMNISTAB LS 622 is a light stabilizer of hindered amines. It is widely used in polyolefin and olefin copolymers. The product does not affect the color and transparency of the final product, and it is easy to disperse. OMNISTAB LS 944 can effectively improve the optical stability of thin products, especially fiber and film products. It is a high efficient and long-term heat stabilizer for thick and thin products, with good anti extraction performance.
通常情况下,两种光稳定剂并用或者紫外线吸收剂和光稳定剂并用能够给产品提供更加全面的保护。我司也可以提供LS622和LS944的混合产品LS 783,以方便客户使用,使客户有更好的服务体验。
In general, the combination of two light stabilizers or UV absorbers and light stabilizers can provide more comprehensive protection for products. We can also provide OMNISTAB LS622 and OMNISTAB LS944 mixed product OMNISTAB LS 783, to facilitate the use of customers, so that customers have a better service experience.
淬灭剂指通过分子间的能量转移(长程能量转移和接触或碰撞或交换能量转移两种),迅速而有效地将激发态分子(单线态氧和三线态物质)淬灭,使转变成热能或转变成荧光或磷光,而辐射散失,回到基态的一类物质,通过这一过程,使其免遭紫外线破坏,从而达到稳定高分子材料的目的。猝灭剂主要是金属络合物,如二价镍络合物等,常和紫外线吸收剂并用,起协同作用。因此,它有别于紫外线吸收剂(并不强烈吸收紫外线),且作用机理也不同于紫外线吸收剂(通过分子内的结构变化转移能量),如常用镍的有机化合物--UV1084,中文别名为2,2-硫代双(4-叔辛基苯酚)正丁胺镍盐。
Quencher is a kind of material which through intermolecular energy transfer(long-term energy transfer and contact or collision or exchange energy transfer), quickly and effectively to excited state molecules(singlet and triplet state substances)quenching and converted into heat energy or into a fluorescence or phosphorescence, and radiation loss, return to the ground state. Through this process, and make them from UV damage, so as to achieve the purpose of the stability of polymer materials. Quenching agents are mainly metal complexes, such as divalent nickel complex, and often used with ultraviolet absorption agents, play a synergistic role. Therefore, it is different from ultraviolet absorbent (which does not strongly absorb ultraviolet radiation), and its mechanism of action is different from ultraviolet absorbent (which transfers energy through structural changes within molecules). For example, UV 1084, is known as 2, 2-thio-bis (4-tert-octyl phenol) n-butylamine nickel salt in Chinese.
OMNISTAB UV 1084主要应用于聚乙烯棚膜、农膜,不仅具有抗紫外线辐射的作用,而且具有抗氧化剂的功能,具有较高的耐农药、耐酸性,在聚丙烯、聚乙烯纤维、人造草坪等领域具有广泛应用。它属于淬灭剂类光稳定剂,能够有效转移聚合物中生色基团激发态能量并将其以无害的形式消散掉从而使聚合物免于光降解反应。
OMNISTAB UV 1084 is mainly used in polyethylene film and agricultural film. It not only has the function of anti-ultraviolet radiation, but also has the function of anti-oxidant. It has a high resistance to pesticides and acid, and is widely used in polypropylene, polyethylene fiber, artificial lawn and other fields.It is a quenching agent like light stabilizer, which can effectively transfer the excited state energy of the chromogenic groups in the polymer and dissipate it in a harmless form, thus making the polymer immune to photodegradation.
OMNISTAB UV 1084着色性小对聚烯烃染料有螯合作用,可改善染色性,毒性低,对皮肤刺激性小,对常在高温下使用或长期经受日晒的制品尤为适宜。也可以与其他形式的稳定剂很好的配合使用尤其是紫外线吸收剂类产品。与聚烯烃产品具有极强的兼容性。使用在聚乙烯农用薄膜和聚丙烯人造草坪上具有极高的稳定性。
OMNISTAB UV 1084 has a small staining property, It chelates polyolefin dyes, it can improve dyeing properties, has low toxicity, and is less irritating to the skin. It is particularly suitable for products that are often used at high temperatures or subjected to prolonged exposure to the sun.It also works well with other forms of stabilizers, especially UV absorbers. It has strong compatibility with polyolefin products. It has high stability when used in polyethylene agricultural film and polypropylene artificial lawn.
更多产品细节,请参考产品技术说明书。青岛德达志成化工有限公司是一家专业生产和销售各类紫外线吸收剂、光稳定剂和高端抗氧剂的公司,致力于为您提供一站式的添加剂服务。更多详细信息,欢迎电话咨询我司销售团队!
For more details, please refer to the product specification. DELTACHEM(QINGDAO)CO., LTD is a professional manufacturer and distributor of various ultraviolet absorbent, light stabilizer and high-end antioxidant, committed to providing one-stop additive service for you.For more details, please call our sales team!



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