黄变

按照国家高分子材料性能测试方法测试PP的各项性能：黄变因数（Y）、羰基指数（CI）、p晶含量（Kβ）、拉伸强度和缺口冲击强度。

According to the performance test method for performance of national polymer materials testing PP : yellowing factor ( Y ), carbonyl index ( CI ), the content of β crystal ( Kp ), tensile strength and notch impact strength .

为了进一步拓展紫外光固化涂料的用途，解决黄变问题，设计了紫外光敏感性和引发活性非常高的新型光引发剂&丙烯酸甲酯基三乙酰基甲烷，并用1H-NMR、13C-NMR、GC-MS进行了表征。

The application of UV curable coatings is extended and the yellowing of coatings is prevented by designing a new-type photo initiator ( methylpropenoateyl triacetyl methane ) with ultraviolet sensitivity and very high activity . 1H-NMR 、 13C-NMR 、 GC-MS are used to characterize the photo initiator .

DM系列抗黄变剂在锦纶织物上的应用

Application of DM series anti-yellowing agents to polyamide fabric

纳米TiO2及其与稀土复配物对真丝绸防紫外和防黄变功能的研究

Research on Anti-UV and Anti-yellowing Properties of Silk Fabrics with Nano-TiO_2 and RE / Nano-TiO_2 Composite

基于HHT的脱机手写体汉字特征提取希尔伯特&黄变换手写体汉字识别方法

Feature extraction of off-line handwritten Chinese characters based on Hilbert-Huang transform New HHT-based handwritten Chinese character recognition method

柞丝绸的黄变原因探讨等九个方面实验结果进行分析讨论。采用乙酰化、金属离子处理、MAA接枝和环氧整理加工、紫外线吸收剂添加等方法，探讨防止黄变的某些有效途径。

Some effective techniques to prevent yellowness are searched through acetylation , graft , metal iron treatment , epoxy and UV absorbent finishing .

探讨了UV涂料固化后初期黄变的主要原因；活性低聚物的结构对UV涂层固化初期黄变和长期耐候性能的影响；

However , the main reason of yellow change of UV curing coating in the early stage was discussed , and the active oligomer have influence on UV coatings early stage yellow change and long time weather resistance .

高硬度耐黄变PU-RIM材料的研究

Study on Yellowing-Proof PU-RIM Materials With High Hardness

研究了E10合成低酸值树脂对硝基漆漆膜及原漆黄变的影响。

The yellowing effect of E10 synthetic low acid value resin to paint film of nitrocellulose lacquer and to the original lacquer was studied .

利用这些技术分别以环烷基、中间基原油生产的SBS橡胶填充油的色度、相溶性、黄变性能等指标均达到国外同类产品质量水平，满足了市场需求。

The chromaticity , miscibility and anti-yellowing of SBS rubber extender oil produced by these technologies , which raw material was naphthenic-base or medium-base crude oil , could reach quality standard of the same overseas product and satisfy domestic market requirement .

该胶固含量46%～50%，pH值5～6，残存单体≤0.1%，成膜光泽度≥90%，耐黄变等级A，Tg为23℃。

The lacquer has solid content of ( 48 ± 2 ) % , pH value of 5 - 6 and residual monomer of under 0.1 % , and the resulted film has glossiness of over 90 % , anti-yellowing of grade A and Tg of 23 ℃ .

本文对希尔伯特-黄变换算法在PHM数据采集处理系统中的应用进行了深入研究，包括算法的基本原理，算法与其它时频分析方法的比较以及最终的DSP实现和优化过程。

This dissertation deeply studies the application of Hilbert-Huang transform in the PHM data acquisition and processing system , including the basic principle , the comparison with other time-frequency domain analysis method and the final implementation and optimization in DSP .

并采用uv-284对丝织物的抗黄变性能作了考察，探讨了与环氧整理剂同浴处理的条件和方法。

Furthermore , the method and conditons for one-bath treatment with ultraviolet absorber and epoxide finish are discussed .

对自制酚黄变抑制剂的性能进行了测试，结果表明：自制酚黄变抑制剂在防止锦纶织物储存黄变的效果方面与国外公司的酚黄变抑制剂AY相当。

The properties of a phenol yellowing inhibitor , made by the authors , were tested and proved to be equivalent to those of the phenol yellowing inhibitors made by foreign firms in the field of the effect of polyamide fiber yellowing prevention during storage .

新型耐黄变鞋用聚氨酯胶粘剂的研制

Development of Novel Polyurethane Adhesive with Resistance to Yellowing for Shoemaking

紫外线照射导致真丝绸黄变的机理

Studies on the Mechanism of Silk Yellowing by Ultraviolet Irradiation

柔印印品耐黄变性能的探讨

Research on Resistance to Yellow Changing of Flexo Print

喷施二次和喷施三次的植株由黄变白。

Secondary and three times spraying rapes become white .

骨色胶衣的黄变现象

Yellowing Phenomenon of Ivory Gelcoat Love For Pottery Chondroblastoma of bone Brocade Color

紫外线吸收剂与真丝绸防黄变整理

Application of Ultraviolet Absorbent to Yellowing-Resistant Finishing for Silks

织物黄变的原因、防止和回修

Causes for Yellowing and Its Prevention and Correction

溶液丁苯胶黄变原因的研究

Study on the problem of turning SBR yellow

高回弹泡沫的黄变与防治

Change Yellow and the Method to Prevent and Cure of the High Resilience Foam

适当添加抗氧剂可减少黄变。

Adding of appropriate antioxidant can reduce yellowing .

抗黄变剂在硝基漆中的作用

The Effect of Anti-yellowing Agents in Nitrocellulose Liquor

移膜革耐黄变性能的研究

Study on Resistance to Yellowing of Transfer-film Leather

耐热黄变乙烯类皮革表面涂料的研制

Study on the Anti-heat Yellowish Leather Surface Coating

最早使用的氨基硅油可赋予织物良好的柔软性，但吸水性较差，且易黄变。

The earlier amino silicone oil can make fabric soft but hydrophilic and yellow .

柞丝绸的黄变及其防止加工研究

The Occurrence and Prevention of Yellowing of Tussah

低黄变和亲水性氨基聚硅氧烷的开发

Development of low-yellowing and hydrophilic amino polysiloxane