工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2014年
11期
112-116
,共5页
付伟强%王锐%张辉%朱志国
付偉彊%王銳%張輝%硃誌國
부위강%왕예%장휘%주지국
{6-(1,1,3,3-四甲基丁基)氨基-1,3,5-三嗪-2,4-(2,2,6,6-四甲基-哌啶基)亚氨基-1,6-己二撑(2,2,6,6-四甲基-4-哌啶基)亚氨基}(UV-944)%抗紫外光老化%热氧稳定性%端氨基含量
{6-(1,1,3,3-四甲基丁基)氨基-1,3,5-三嗪-2,4-(2,2,6,6-四甲基-哌啶基)亞氨基-1,6-己二撐(2,2,6,6-四甲基-4-哌啶基)亞氨基}(UV-944)%抗紫外光老化%熱氧穩定性%耑氨基含量
{6-(1,1,3,3-사갑기정기)안기-1,3,5-삼진-2,4-(2,2,6,6-사갑기-고정기)아안기-1,6-기이탱(2,2,6,6-사갑기-4-고정기)아안기}(UV-944)%항자외광노화%열양은정성%단안기함량
poly{[6-[(1,1,3,3-tetramethylbutyl)amino]]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidyl) imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidyl)imino]}(UV-944)%UV aging resistance%thermal oxidation stability%terminal amino group content
在己内酰胺开环水解过程中，加入一定量的聚{[6-[(1，1，3，3-四甲基丁基)氨基]]-1，3，5-三嗪-2，4-[(2，2，6，6-四甲基-哌啶基)亚氨基]-1，6-己二撑[(2，2，6，6-四甲基-4-哌啶基)亚氨基]}(UV–944)，合成改性聚酰胺6。研究了UV–944对聚酰胺6光稳定性、热氧稳定性和末端氨基含量的影响。结果表明，UV–944的加入能明显提高聚酰胺6的耐紫外光老化及热氧稳定性，在空气氛围下的起始分解温度提高28℃左右；在185℃老化0.5 h后，改性聚酰胺6的相对黏度下降极低(UV–944质量分数为0.05％时，相对黏度仅下降了3.1%)，热氧稳定性明显得到改善。同时，聚酰胺6的末端氨基含量增加，加入UV–944质量分数分别为0.05％，0.2％时，聚酰胺6的末端氨基含量比纯聚酰胺6提高5.1，18.7 mmol／kg，对染色性能明显有所改善。而UV–944对聚酰胺6的热稳定性、熔融温度与结晶温度影响不大。
在己內酰胺開環水解過程中，加入一定量的聚{[6-[(1，1，3，3-四甲基丁基)氨基]]-1，3，5-三嗪-2，4-[(2，2，6，6-四甲基-哌啶基)亞氨基]-1，6-己二撐[(2，2，6，6-四甲基-4-哌啶基)亞氨基]}(UV–944)，閤成改性聚酰胺6。研究瞭UV–944對聚酰胺6光穩定性、熱氧穩定性和末耑氨基含量的影響。結果錶明，UV–944的加入能明顯提高聚酰胺6的耐紫外光老化及熱氧穩定性，在空氣氛圍下的起始分解溫度提高28℃左右；在185℃老化0.5 h後，改性聚酰胺6的相對黏度下降極低(UV–944質量分數為0.05％時，相對黏度僅下降瞭3.1%)，熱氧穩定性明顯得到改善。同時，聚酰胺6的末耑氨基含量增加，加入UV–944質量分數分彆為0.05％，0.2％時，聚酰胺6的末耑氨基含量比純聚酰胺6提高5.1，18.7 mmol／kg，對染色性能明顯有所改善。而UV–944對聚酰胺6的熱穩定性、鎔融溫度與結晶溫度影響不大。
재기내선알개배수해과정중，가입일정량적취{[6-[(1，1，3，3-사갑기정기)안기]]-1，3，5-삼진-2，4-[(2，2，6，6-사갑기-고정기)아안기]-1，6-기이탱[(2，2，6，6-사갑기-4-고정기)아안기]}(UV–944)，합성개성취선알6。연구료UV–944대취선알6광은정성、열양은정성화말단안기함량적영향。결과표명，UV–944적가입능명현제고취선알6적내자외광노화급열양은정성，재공기분위하적기시분해온도제고28℃좌우；재185℃노화0.5 h후，개성취선알6적상대점도하강겁저(UV–944질량분수위0.05％시，상대점도부하강료3.1%)，열양은정성명현득도개선。동시，취선알6적말단안기함량증가，가입UV–944질량분수분별위0.05％，0.2％시，취선알6적말단안기함량비순취선알6제고5.1，18.7 mmol／kg，대염색성능명현유소개선。이UV–944대취선알6적열은정성、용융온도여결정온도영향불대。
A certain amount of poly{[6-[(1,1,3,3-tetramethylbutyl)amino]]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidyl)imino]}(UV–944) was added in the ring-opening hydrolyzing process of caprolactam for the synthesis of modified polyamide 6. The effects of UV–944 on the light stability,thermal oxidation stability and terminal amino group content of polyamide 6 was researched. The results show that the addition of UV–944 can significantly improve the UV aging resistance and thermal oxidation stability of polyamide 6 and enhance initial decomposition temperature under air atmosphere about 25℃. The aging time under air atmosphere at 185℃is 0.5 h,the relative viscosity decrea-ses percentage of modified polyamide 6 is very small (UV–944 content of 0.05%,the relative viscosity decreases by only 3.1%) and thermal oxidation stability is improved significantly. Meanwhile,the terminal amino group content of polyamide 6 is increased. When the mass fraction of UV–944 is 0.05%,0.20%,the content of the terminal amino group improves 5.1,18.7 mmol/kg respectively and dyeing property is significant improved. The melting temperature and crystallization temperature of polyamide 6 are basically not affected by UV–944.
