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发表于 2008-7-7 14:36:11
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目录
9 K# `6 ]( V% E' r. l1前言.........................................................................................................................14 L: W' [* l9 |6 f: G6 q
1.1发泡材料的概述..................................................................................................1+ z0 c7 ~3 L8 i. k+ H
1.1.1分类......................................................................................................................1
6 ?9 i$ F- ^4 K Y) C+ E1.1.2制备方法..............................................................................................................2
' s6 N, H1 K) r( K& H# @1.2弹性体发泡材料的发展概况.....................................................................................3
* \) b7 P6 ?0 K+ |8 u( B3 V# ?" A1.2.1橡胶发泡材料的制备工艺..................................................................................40 T+ v. Q- _8 j4 T
1.2.2橡胶发泡材料的原料..........................................................................................62 Z5 I$ d; t$ G9 a- u2 |' I
1.3发泡材料的应用.......................................................................................................10
8 e) O. ]4 M1 Q% v6 U' X1.4橡胶发泡材料的相关研究.......................................................................................10, \# c9 Q# C t4 D
1.4.1发泡与硫化的匹配及对发泡材料影响............................................................11- @! p8 S# W+ d B9 y0 K
1.4.2发泡剂及其分解规律........................................................................................12
7 l. b4 a$ z9 M( b. m1.4.3硫化动力学研究................................................................................................13
* Q9 T1 w9 b- p1.5天然橡胶...................................................................................................................148 C8 {+ S7 a" r4 h% @/ c
1.6本文研究目的和内容...............................................................................................14' |+ i; }/ b- Q k8 X
2实验部分.........................................................................................................................15
% `, Z1 N* k, g2.1原材料.......................................................................................................................15/ t2 ^% F" j* d
2.2试样制备...................................................................................................................15
$ o! l+ b! D8 a# [2.3硫化特性和发泡特性的测试...................................................................................16
2 D+ F8 R3 M0 f" N5 R5 u, D2.4密度测定...................................................................................................................16
( P: L3 Y3 ~! ]! ]2.5扫描电镜观察...........................................................................................................17
/ ^+ A; ?4 r8 m$ b' I/ g$ Y' M8 F6 O2.6硬度测试...................................................................................................................17
* w8 Y2 M+ H8 l* I+ G- d8 l @2.7压缩应力应变曲线测试...........................................................................................17: V1 `/ a/ ~1 W) R
2.8压缩应力松弛...........................................................................................................17. c( Z$ U1 g2 m, ^$ z" y' x9 {
3结果与讨论.....................................................................................................................18
9 E# o" ]& P) b4 c X- O; k( |- v, B/ }3.1发泡剂分解特性的表征...........................................................................................18
$ W) s. Y& U. B3 t7 `0 D3.1.1用无转子发泡硫变仪表征胶料发泡特性........................................................184 Y& N# S! I" P B+ X1 e& X
3.1.2用发泡硫化仪测试发泡剂H在橡胶中的分解动力学规律...........................23
c& S) X4 D( Q3.2硫化与发泡过程的影响因素...................................................................................24
- s9 N# f0 {) x. D3.2.1橡胶发泡过程浅析............................................................................................25' ~9 d, v1 t2 d
3.2.2发泡剂种类对发泡过程的影响........................................................................26
9 T0 m, V; S, j% v# l2 i( V3.2.3发泡助剂对发泡过程的影响............................................................................28
8 O: c! a, {2 I# }: g& c0 b3.2.4硫化体系对发泡过程的影响............................................................................29
, c- |& Z) [6 L' O$ U$ N$ S1 d$ R3.2.5发泡剂并用对发泡过程的影响........................................................................298 \ h& \ O+ \2 t
3.2.6硫化过程的影响因素........................................................................................30, k) J) ?3 V/ |8 _+ X5 H8 P+ g
3.3 NR发泡材料的制备及其物理性能.........................................................................32
" o- ]' W+ g, |% Q r& i' }3.3.1发泡剂含量的影响............................................................................................32
, G5 l' D5 V$ O9 ^2 C& Z; ]* p3.3.2 CaCO3含量的影响.............................................................................................35
# k; V$ r! h% ^: x: w0 k' L& a3.3.3温度对硫化和发泡曲线的影响........................................................................37* n1 Z' H2 Q8 Q, [/ c" K- x
3.3.4加工工艺的影响................................................................................................39& k- l6 _* W5 }1 W9 e( i& W
3.4发泡材料压缩特性与能量吸收特性的研究...........................................................413 q1 N; }4 ?% p F
3.4.1基本配方............................................................................................................42
8 @/ A8 K5 \, K# u" ^% F) Y3.4.2 NR橡胶发泡材料的压缩行为...........................................................................435 z2 C2 y& c; @8 T
3.4.3 NR橡胶能量吸收特征.......................................................................................44. |; _- Z. `7 ~% O) X. d
3.4.4发泡材料的应力松弛........................................................................................49' ^1 I' Y: e% ]
4结论.................................................................................................................................51 |
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