英语翻译由图1可看出,随着PHMS用量的增加,其乳液的表面张力会逐渐减小.这是因为PHMS的表面能低,表面张力小,在含水体系中形成一种表面溶液,起乳化剂的作用,从而使乳液的表面张力减小.图1

Question

英语翻译
由图1可看出,随着PHMS用量的增加,其乳液的表面张力会逐渐减小.这是因为
PHMS的表面能低,表面张力小,在含水体系中形成一种表面溶液,起乳化剂的作用,从而
使乳液的表面张力减小.
图1 PHMS用量对乳液表面张力的影响
2.1.2 对乳液稳定性的影响
PHMS用量对乳液离心稳定性的影响如图2所示.随着PHMS用量的增加,P值减
小,乳液稳定性增大,这可能是因为PHMS的表面能低,表面张力小,在含水体系中起乳化剂的作用,降低了乳液的表面张力,从而增加体系的稳定性,因此也使单体得以很好地分
散[5].另外,随PHMS用量的增多,接枝到PHMS链上的BA、 VAc、NMA的量也增多,同
样提高了乳液的稳定性.
图2 PHMS用量对乳液表面张力的影晌
2.1.3 对乳液拉径大小及分布的影响
随着PHMS用量的增加,乳液的粒径变大,如图3所示.图3(a)样品中PHMS的用
量为5g,其平均粒径为147.5nm,分布指数为0.20；图3(b)样品中PHMS的用量为l0g,其
平均粒径为148.9,分布指数为0.25；图3(c)样品中PHMS的用量为15g,其平均粒径
为274.8nm,分布指数为0.14.这可能是由于随着PHMS用量的增加,不仅Si一H与C=C键之间的自由基加成反应程度增加,PHMS本体以及与聚合物和单体 NMA之间
的交联反应也有不同程度的增加,导致乳液粒子粒径增加.

Answer 1

May see by Figure 1,along with the PHMS amount used increase,its emulsion surface tension can reduce gradually.This is because
the PHMS surface energy is low,the surface tension is small,forms one kind of superficial solution in the watery system,plays the emulsifier role,thus
causes the emulsion the surface tension to reduce.
Figure 1 the PHMS amount used to the emulsion surface tension
influence 2.1.2 pair of stability of emulsion
influence PHMS amount used to emulsion gentrifugalism stable influence as shown in Figure 2.Along with the PHMS amount used increase,the P value reduces
slightly,the stability of emulsion increases,this possibly is because the PHMS surface energy is low,the surface tension is small,in the watery system the emulsifier function,reduced the emulsion surface tension,thus increase system stability,therefore also enables the monomer the minute to disperse [5] well.Moreover,along with PHMS amount used increase,the stem grafting to on PHMS chain BA,VAc,the NMA quantity also increases,enhanced
the emulsion stability with the type.
Figure 2 the PHMS amount used pulls the diameter size and the distribution influence
to the emulsion surface tension shade noon 2.1.3 pair of emulsion
along with the PHMS amount used increase,the emulsion particle size fill-out,as shown in Figure 3.Figure 3(a) in the sample PHMS uses
the quantity is 5g,its average grain diameter is 147.5nm,the distributed index is 0.20; Figure 3(b) in the sample the PHMS amount used is l0g,its
average grain diameter is 148.9,the distributed index is 0.25; Figure 3(c) in the sample the PHMS amount used is 15g,its average grain diameter
is 274.8nm,the distributed index is 0.14.This possibly is as a result of along with the PHMS amount used increase,not only Si H and between the C=C key free radical addition reaction degree increases,between the PHMS main body as well as also has the varying degree
increase with the polymer and the monomer NMA crossing linking response,causes the emulsion granule particle size increase.