CAJ | 학술논문

通过采用 XRD 测试聚合产物结晶性能,考察聚合产物结晶性对减阻率的影响,结果表明:少量的添加α-癸烯能够改变α-十二烯本体均聚的结晶性,从而达到提高本体均聚产物减阻率的目的.反应最佳工艺条件为单体配比C10︰C12=3︰117,主催化剂用量0.2 g,助催化剂用量1 mL,初始反应温度-2℃时,通过环道装置测试结果表明在此条件下减阻率可由本体均聚的34.60%提高至本体共聚的50.28%,减阻率相对提高了45.31%.添加少量α-癸烯破坏了聚合物的结晶结构,使聚合物达到较高的减阻率.
통과채용 XRD 측시취합산물결정성능,고찰취합산물결정성대감조솔적영향,결과표명:소량적첨가α-계희능구개변α-십이희본체균취적결정성,종이체도제고본체균취산물감조솔적목적.반응최가공예조건위단체배비C10︰C12=3︰117,주최화제용량0.2 g,조최화제용량1 mL,초시반응온도-2℃시,통과배도장치측시결과표명재차조건하감조솔가유본체균취적34.60%제고지본체공취적50.28%,감조솔상대제고료45.31%.첨가소량α-계희파배료취합물적결정결구,사취합물체도교고적감조솔.
The crystalline property of polymers was tested by XRD, and the influence of the crystallinity of polymers on drag reduction was investigated. The results show that: adding a small amount of α-decene can change the crystallinity ofα-dodecene homopolymer to improve its drag reduction rate. The optimum technological conditions are as follows: the volume ratio of α-dodecen and α-octene 3∶117,the dosage of main catalyst 0.2 g ,the dosage of cocatalyst 1 mL and the initial reaction temperature -2 ℃. The drag reducing performance of the copolymers was evaluated by indoor loop apparatus, the drag reduction efficiency of the copolymer was 50.28%, the drag reduction efficiency of the homopolymer was 34.60%,the drag reduction rate was increased by 45.31%relatively. Adding a small amount ofα-decene destructed the crystalline structure of the polymer to improve drag reduction rate.