| 毛 萃,万 莹,孟凡锦,刘群华,刘 文.具有微交联结构两性聚丙烯酰胺纸张增强剂的合成及应用[J].中国造纸学报,2016,31(2):7-10 |
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| 具有微交联结构两性聚丙烯酰胺纸张增强剂的合成及应用 |
| Synthesis of Lightly Cross-linked Amphoteric Polyacrylamide and Its Application as Paper Strengthening Agent |
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| DOI：10.11981/j.issn.1000-6842.2016.02.7 |
| 中文关键词: 两性聚丙烯酰胺 微交联 增强剂 |
| Key Words:amphoteric polyacrylamide lightly cross-linked paper strengthening agent |
| 基金项目:制浆造纸国家工程实验室博士基金项目。 |
| 作者 | 单位 | | 毛 萃1,2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 万 莹1,2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 孟凡锦1,2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 刘群华1,2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 刘 文1,2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 |
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| 中文摘要: |
| 以N-羟甲基丙烯酰胺(NMA)为结构改性剂,以丙烯酰胺(AM)、甲基丙烯酰氧乙基三甲基氯化铵(DMC)、丙烯酸(AA)为共聚单体,采用水溶液共聚合法制备得到具有微交联结构的两性聚丙烯酰胺(AmPAM),并对其增干强效果进行了考察。结果表明,在单体摩尔比为n(AM)∶n(DMC)∶n(AA)=8.0∶1.5∶0.5、单体质量分数为20%、引发剂过硫酸铵用量为0.4%(相对于总单体质量，下同)、反应温度为80℃、反应时间为5 h、NMA用量为3%的条件下,得到的AmPAM增强效果最佳；在相同添加量条件下,自制具有微交联结构AmPAM的增强效果优于市售线形AmPAM。 |
| Abstract: |
| Lightly cross-linked amphoteric polyacrylamide (AmPAM) was synthesized by the aqueous solution copolymerization method using acrylamide (AM), 2-methacryloxyethyl trimethyl ammonium chloride (DMC) and acrylic acid (AA) as monomers, N-methylolacrylamide (NMA) as molecular structure modification additive. The strengthening effect of AmPAM was also studied.The results showed that the optimal polymerization conditions were: n(AM)∶n(DMC)∶n(AA)=8.0∶1.5∶0.5, the mass fraction of monomer was 20%, the dosage of initiator was 0.4%, the reaction temperature was 80℃, the reaction time was 5 h, the dosage of NMA was 3% respectively. Meanwhile, the strengthening effect of the lab-made AmPAM applied in paper was better than that of the commercial linear AmPAM products with the same addition. |
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