界面縮聚 的英文怎麼說
中文拼音 [jièmiànsuōjù]
界面縮聚
英文
interface condensation-
Detailedly introduces definition classification and character of interfacial polycondensation and influential factors of polycondensate molecular weight
並著重介紹了界面縮聚的定義、分類、特點以及影響縮聚物分子量的因素。For the purpose of improving calculation precision and reduce workload, viscoelastic similar shape element is generated in the numerical research about crack problem, using the characteristic of similar stiffness matrix between element near crack tip
在裂紋問題的數值研究中,為了提高計算精度、減輕計算工作量,構造了粘彈性相似界面單元,利用裂尖附近相似單元剛度陣相似的特點,採用聚縮法形成裂尖超級單元。This was due to three reasons : ( 1 ) baso4 particles were rigid inorganic particles, which could hinder the retraction of polymer molecules and decreased the elasticity. ( 2 ) a bad compatibility between baso4 and tpu, small interface adhesive force and the phase interface ready to separate. ( 3 ) during high content of baso4, the tenacity of filament mainly depended on tpu, so that the strength decreased with the content of tpu in filament down
這是因為: baso _ 4屬于剛性粒子,阻礙tpu大分子鏈的回縮,降低了纖維的彈性; baso _ 4與tpu相容性極差,共混時容易形成相界面,界面結合力小,受外力作用時相與相間容易發生分離,使纖維的力學性能下降; baso _ 4在高含量下,纖維強度主要由聚合物的力學性能決定,隨著baso4含量的增加, tpu所佔比例下降,從而在宏觀上表現出纖維的力學性能下降。
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