CN108610468A - 一种高韧性氰酸酯叶轮盖板制备方法 - Google Patents

一种高韧性氰酸酯叶轮盖板制备方法 Download PDF

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CN108610468A
CN108610468A CN201810395248.0A CN201810395248A CN108610468A CN 108610468 A CN108610468 A CN 108610468A CN 201810395248 A CN201810395248 A CN 201810395248A CN 108610468 A CN108610468 A CN 108610468A
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乐少兵
李林瑞
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Abstract

本发明涉及一种高韧性氰酸酯叶轮盖板制备方法，包括以下步骤：步骤1）、以质量百分比配备浇注混合物原料；步骤2）、将模具清理干净、涂抹脱模剂；步骤3）、制得预聚体；步骤4）、制得氰酸酯预聚体；步骤5）、将步骤2）处理好的模具进行加热使其温度保持在60‑70℃，且保持模具两端的注料口在水平方向上；步骤6）、制得浇注混合物；步骤7）、浇注成型；步骤8）、硫化处理；步骤9）、将步骤8）硫化好的管材取出进行内外表面清洁处理，制得高韧性氰酸酯叶轮盖板。通过本发明，提高叶轮盖板的耐磨性能，加强叶轮盖板的韧性，有效的防止因长时间使用力学性能降低时，在进行物料筛选分级的时候极容易出现断裂折断等情况。

Description

一种高韧性氰酸酯叶轮盖板制备方法
技术领域
本发明涉及一种高韧性氰酸酯叶轮盖板制备方法，属于叶轮盖板设计技术领域。
背景技术
目前常采用聚氨酯叶轮盖板材质，使得产品更具耐磨特性，寿命更长。兼有吸气、吸浆和浮选自成浮选回路，不需任何辅助设备，水平配置，便于流程的变更；设有矿浆面的手控、自控和电控装置，调节方便；叶轮盖板由闭式双截锥体组成，可产生强的矿浆下循环。浮选机在工作时，给矿管把矿浆给到盖板中心处，叶轮旋转所产生的离心力将矿浆甩出，同时在叶轮与盖板间形成负压，于是经由进气管自动地吸入了外界空气。叶轮的强烈搅拌作用使矿浆药剂与空气得以充分混合，并将气流分割成许多细小的气泡。再者，在叶轮叶片的后方也会从矿浆中析出一些气泡。长时间使用使得叶轮盖板温度升高、耐磨性和韧性等力学性能明显下降。长时间使用力学性能降低时，在进行物料筛选分级的时候极容易出现断裂折断等情况。
发明内容
本发明的目的在于针对上述现有技术存在的缺陷，提供一种高韧性氰酸酯叶轮盖板制备方法。
本发明的目的是这样实现的，一种高韧性氰酸酯叶轮盖板制备方法，其特征是，包括以下步骤：
步骤1）、以质量百分比配备浇注混合物原料，四氢呋喃环氧丙烷共聚醚60%~80%、甲苯二异氰酸酯4%~20%、硫化剂MOCA5%~15%、聚酯二元醇5%~11%，其余为交联剂三元醇N3010；
步骤2）、将模具清理干净、涂抹脱模剂；
步骤3）、将步骤1）配备的四氢呋喃环氧丙烷共聚醚倒入反应釜中，开动搅拌器，同时打开加热电源开始加热升温，再将已配备的甲苯二异氰酸酯、聚酯二元醇、交联剂三元醇N3010缓慢地倒入反应釜中，当温度升至50-60℃时关闭加热电源， 待其自然升温使温度控制在80-90℃之间，在 80-90℃的温度范围内，连续搅拌90-100 分钟后，停止搅拌，将反应釜密闭静置24小时，制得预聚体；
步骤4）、将步骤3）制得的预聚体进行加热，同时开动搅拌器进行搅拌，抽真空脱气泡，真空过程中温度控制在95-100℃，真空时间为50-70分钟，制得氰酸酯预聚体；
步骤5）、将步骤2）处理好的模具进行加热使其温度保持在60-70℃，且保持模具两端的注料口在水平方向上；
步骤6）、将步骤4）制得氰酸酯预聚体温度控制在60-80℃，加入步骤1）配备的硫化剂MOCA，一边加入一边搅拌直至清澈透明为止，制得浇注混合物；
步骤7）、将步骤6）制得的浇注混合物从两端注料口迅速注入到模具中，并使浇注混合物在模具中自然水平，同时保证模具内部氰酸酯的厚度达到设计要求，浇注时间为30分钟，温度控制在70-80℃，得到半成品；
步骤8）、将步骤7）的半成品脱模，送入硫化仓进行后硫化，硫化时间 8 小时，温度控制在 100-110℃；
步骤9）、将步骤8）硫化好的半成品取出进行内外表面清洁处理，制得高韧性氰酸酯叶轮盖板，经检验合格后入库。
本发明的特点在于：
1、交联剂三元醇N3010的加入起到了应力分散作用，有效的提高了氰酸酯因长期使用温度升高耐磨性降低的力学性能。
2、聚酯二元醇的加入提高－NCO质量分数，使得硬段含量增加，相应的软段含量比例减少，分子间氢键和作用力增强，结晶性能也提高；撕裂强度增大，扯断伸长率降低，拉伸强度则先增大后降低，在5%达到最大，有效的提高了氰酸酯因长期使用温度升高韧性降低的力学性能。
3、通过本发明的生产工艺， 生产出来的产品具有高韧性、高耐磨、耐酸碱、防结垢、使用寿命长、抗机械冲击等综合性能。与普通钢制叶轮片相比寿命可提高10~15倍，与聚氨酯叶轮片相比寿命可提高2~3倍。
本发明提供的氰酸酯叶轮盖板是一种高强度、高耐磨材料，介于一般橡胶与塑料之间的高分子聚合物，它具有橡胶的高弹性能又有塑料家族特有的高强度，是一种特有的高耐磨，弹性材料。最新研制的氰酸酯叶轮盖板，使用寿命更高，减少铸铁、橡胶叶轮盖板的更换次数，是您理想的选择。
通过本发明，提高叶轮盖板的耐磨性能，加强叶轮盖板的韧性，有效的防止因长时间使用力学性能降低时，在进行物料筛选分级的时候极容易出现断裂折断等情况。
具体实施方式
以下对本发明作进一步的说明。
一种高韧性氰酸酯叶轮盖板制备方法，包括以下步骤：
步骤1）、以质量百分比配备浇注混合物原料，四氢呋喃环氧丙烷共聚醚60%~80%、甲苯二异氰酸酯4%~20%、硫化剂MOCA5%~15%、聚酯二元醇5%~11%，其余为交联剂三元醇N3010；
步骤2）、将模具清理干净、涂抹脱模剂；
步骤3）、将步骤1）配备的四氢呋喃环氧丙烷共聚醚倒入反应釜中，开动搅拌器，同时打开加热电源开始加热升温，再将已配备的甲苯二异氰酸酯、聚酯二元醇、交联剂三元醇N3010缓慢地倒入反应釜中，当温度升至50-60℃时关闭加热电源， 待其自然升温使温度控制在80-90℃之间，在 80-90℃的温度范围内，连续搅拌90-100 分钟后，停止搅拌，将反应釜密闭静置24小时，制得预聚体；
步骤4）、将步骤3）制得的预聚体进行加热，同时开动搅拌器进行搅拌，抽真空脱气泡，真空过程中温度控制在95-100℃，真空时间为50-70分钟，制得氰酸酯预聚体；
步骤5）、将步骤2）处理好的模具进行加热使其温度保持在60-70℃，且保持模具两端的注料口在水平方向上；
步骤6）、将步骤4）制得氰酸酯预聚体温度控制在60-80℃，加入步骤1）配备的硫化剂MOCA，一边加入一边搅拌直至清澈透明为止，制得浇注混合物；
步骤7）、将步骤6）制得的浇注混合物从两端注料口迅速注入到模具中，并使浇注混合物在模具中自然水平，同时保证模具内部氰酸酯的厚度达到设计要求，浇注时间为30分钟，温度控制在70-80℃，得到半成品；
步骤8）、将步骤7）的半成品脱模，送入硫化仓进行后硫化，硫化时间 8 小时，温度控制在 100-110℃；
步骤9）、将步骤8）硫化好的半成品取出进行内外表面清洁处理，制得高韧性氰酸酯叶轮盖板，经检验合格后入库。

Claims (1)

1.一种高韧性氰酸酯叶轮盖板制备方法，其特征是，包括以下步骤：
步骤1）、以质量百分比配备浇注混合物原料，四氢呋喃环氧丙烷共聚醚60%~80%、甲苯二异氰酸酯4%~20%、硫化剂MOCA5%~15%、聚酯二元醇5%~11%，其余为交联剂三元醇N3010；
步骤2）、将模具清理干净、涂抹脱模剂；
步骤3）、将步骤1）配备的四氢呋喃环氧丙烷共聚醚倒入反应釜中，开动搅拌器，同时打开加热电源开始加热升温，再将已配备的甲苯二异氰酸酯、聚酯二元醇、交联剂三元醇N3010缓慢地倒入反应釜中，当温度升至50-60℃时关闭加热电源， 待其自然升温使温度控制在80-90℃之间，在 80-90℃的温度范围内，连续搅拌90-100 分钟后，停止搅拌，将反应釜密闭静置24小时，制得预聚体；
步骤4）、将步骤3）制得的预聚体进行加热，同时开动搅拌器进行搅拌，抽真空脱气泡，真空过程中温度控制在95-100℃，真空时间为50-70分钟，制得氰酸酯预聚体；
步骤5）、将步骤2）处理好的模具进行加热使其温度保持在60-70℃，且保持模具两端的注料口在水平方向上；
步骤6）、将步骤4）制得氰酸酯预聚体温度控制在60-80℃，加入步骤1）配备的硫化剂MOCA，一边加入一边搅拌直至清澈透明为止，制得浇注混合物；
步骤7）、将步骤6）制得的浇注混合物从两端注料口迅速注入到模具中，并使浇注混合物在模具中自然水平，同时保证模具内部氰酸酯的厚度达到设计要求，浇注时间为30分钟，温度控制在70-80℃，得到半成品；
步骤8）、将步骤7）的半成品脱模，送入硫化仓进行后硫化，硫化时间 8 小时，温度控制在 100-110℃；
步骤9）、将步骤8）硫化好的半成品取出进行内外表面清洁处理，制得高韧性氰酸酯叶轮盖板，经检验合格后入库。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111205526A (zh) * 2020-03-03 2020-05-29 湖南昶力轨道交通设备有限公司 一种耐腐蚀耐磨丁腈橡胶共混物及其制备方法和应用

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1648461A (zh) * 2005-02-03 2005-08-03 西安建筑科技大学 纳米结构金属丝网—聚氨酯复合耐磨叶轮及其制备工艺
CN104057625A (zh) * 2014-06-25 2014-09-24 扬州巨业耐磨复合材料有限责任公司 钢丝网骨架聚氨酯复合管离心浇注成型工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1648461A (zh) * 2005-02-03 2005-08-03 西安建筑科技大学 纳米结构金属丝网—聚氨酯复合耐磨叶轮及其制备工艺
CN104057625A (zh) * 2014-06-25 2014-09-24 扬州巨业耐磨复合材料有限责任公司 钢丝网骨架聚氨酯复合管离心浇注成型工艺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张晓华和曹亚: "交联对透明聚氨酯弹性体结构与性能的影响", 《高分子材料科学与工程》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111205526A (zh) * 2020-03-03 2020-05-29 湖南昶力轨道交通设备有限公司 一种耐腐蚀耐磨丁腈橡胶共混物及其制备方法和应用

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