超高密度聚氨酯模塑软泡（pu-rim）的制备.rar

合格作品 字数19634

摘要

本文主要介绍超高密度聚氨酯软泡模塑的制备。做一组单因素实验，判断产品密度符合要求时水的加入量，使其密度大于100Kg/m3。选择三因素（催化剂4501、催化剂A-33及模温）、三水平进行正交实验设计，确定合适的工艺条件，使制品表皮光滑，无开裂、闭孔等，达到质量标准。以高密产品为准，控制搅拌速度制两个样品，并测其性能。最后，分别制高密及低密两个样品并做降噪测试及力学性能测试，比较降噪能力及减振效果。
通过单因素实验可知，水加入量越低，制品密度越大；在1.3份水时即可达到密度要求。经过正交实验分析可得，催化剂A-33、催化剂4501及模温分别为0.5份、0.5份及55℃时所得制品质量达标。慢搅拌样品孔径粗大，快搅拌样品孔径细小。在孔径相同情况下，高密（113 Kg/m3）比低密（45 Kg/m3）降噪能力高2.1%；减振效果高74.5%。

关键词：软泡  密度  孔径  减振  防噪

Abstract

    This paper mainly introduces the high density polyurethane foam molding, the preparation of the soft. A series of single factor experiment, judge products meet the requirements of the density of water addition amount, make product density is more than 100 Kg/m3. Choose three factors (catalyst 4501, catalyst A-33 and mould temperature), three level of the orthogonal experiment design to determine appropriate technology conditions, the products of skin smooth, no crack, closed pore, achieve the quality standards. Products with high standard, stirring speed control system two samples, and measure its performance. Finally, the density and low respectively secret two samples and noise reduction and mechanical properties test do test, more noise reduction ability and the vibration reduction.
    Through the single factor experiment, it is known that the lower the water to join the quantity, the greater the density of the products; In a water can reach 1.3 density requirements. Through orthogonal experimental analysis, catalyst A-33, catalyst 4501 and die temperature were 0.5 share、0.5 share and 55 ℃ of the products quality. When Slow mixing sample aperture bulky, fast mixing sample small aperture. The same situation in aperture, high-density (113 Kg/m3) than the low close (45 Kg/m3) noise reduction ability; high 2.1% Vibration reduction high 74.5%.

Keywords：Soft foam  density  Aperture  Damping  Noise Canceling

目录

摘要 I
Abstract II
目录 III
第1章 绪论 1
1.1 前言 1
1.2 聚氨酯发展概况及行业发展 1
1.2.1 聚氨酯产品发展概况 1
1.2.2 行业发展 2
1.3 模塑制品的研究进展及应用 3
1.3.1 模塑制品的研究进展 3
1.3.2 应用 4
1.4 模塑制品的制备 4
1.4.1 制备 4
1.4.2 影响聚氨酯材料性能的几种因素 6
1.5 降噪及减振 8
1.5.1 降噪 9
1.5.2 振动的防治 10
1.6 选题依据及主要研究内容 10
1.6.1 选题依据 10
1.6.2 主要研究内容 12
第2章 实验部分 13
2.1 实验器材及药品名称 13
2.1.1 实验器材 13
2.1.2 药品名称 14
2.2 实验方案 14
2.3 超高密度聚氨酯模塑软泡的制备 15
2.3.1 超高密度聚氨酯软泡的制备 15
2.3.2 超高密度聚氨酯软泡模塑的的制备 16
2.3.3 噪音测试 16
第3章 结果与讨论 18
3.1 密度分析 18
3.2 助剂对于泡沫体的影响 19
3.4 正交试验分析 25
3.5 模塑制品实用分析 29
3.5.1 产品硬度的调节 29
3.5.2 产品孔径的调节 30
3.5.3 产品实用分析 33
结论 35
致谢 36
参考文献 37

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