CN101575432A - 辐射交联发泡热缩管材料及制备方法 - Google Patents
辐射交联发泡热缩管材料及制备方法 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92714—Degree of crosslinking, solidification, crystallinity or homogeneity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/9298—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
Abstract
本发明一种辐射交联发泡热缩管材料及制备工艺,是经混炼、造粒、挤出、辐照、发泡、扩张制成。本发明采用辐射交联法来控制产品的交联度凝胶含量达50~60,发泡生产温度比较宽为30度,生产工艺稳定,成品率可控。辐射交联发泡热缩管是同体积普通热缩管质量的三分之一。
Description
技术领域
本发明涉及一种辐射交联发泡热缩管材料,同时还提供了该热缩材料的制备方法,属于电缆附件制造技术领域。
背景技术
目前国际上发泡热缩管主要是用化学交联法生产,国内还没有生产发泡热缩管,化学交联法生产发泡热缩管扩张倍数小,容易开裂,工艺不好控制,成品率低。辐照交联发泡热缩管通过辐照交联法生产,交联度可控,生产工艺稳定,成品率可达95%以上。辐射交联发泡热缩管比同厚度热缩管质量减少60%以上,与普通热缩管的绝缘防护性能一致,同时可以紧缩在物件上不易脱落,对防护的产品有很好的缓冲作用。广泛应用于航天航空线束防护,汽车、飞机管路的防护上及重要物品的包装。
发明内容
本发明一种辐射交联发泡热缩管材料,利用辐射交联法制备一种交联度可控,生产工艺稳定,成品率可控的发泡管。
本发明还提供了上述辐射交联发泡热缩管材料的制备方法,适用于工业化生产。
本发明辐射交联发泡热缩管的组成如下(以下均为质量份):
60-90份的聚烯烃材料,2-3份的发泡剂,2-3份的活化剂,1-3份的润滑剂,1-5份的抗氧剂,15-25份的阻燃剂。
本发明采用的聚烯烃材料为聚乙烯-醋酸乙烯共聚物(EVA)或聚乙烯(PE)或其混合物比例:(1~4)∶1。
本发明采用的发泡剂为偶氮二甲酰胺(AC)。
本发明采用的活化剂为氧化锌。
本发明采用的润滑剂为硬脂酸锌。
本发明采用的抗氧剂为1010或AT-10。
本发明采用的阻燃剂为溴系:十溴联苯醚和锑白
本发明辐射交联发泡热缩管的制造方法,具体实施步骤如下:
(1)混炼、造粒:混炼的温度高于PE的熔点,低于发泡剂分解的温度,在80-85℃以下干燥2±0.5小时,按上述重量份数配比所有原料均匀混合,混炼均匀、造粒。
(2)挤出:使用45#或50#PE挤出机,挤出温度:一区:110±10℃、二区:120℃±10℃、三区:125℃±10℃、四区:128℃±10℃,机头温度:110℃±10℃;
(3)辐照:辐照能量:1.2~2.5Mev;辐照剂量:7±0.5Mrad;
(4)发泡:发泡过程可在常压下加热进行的,但是这一过程包括了聚合物的相态变化、化学发泡剂的分解反应、热的传递、气体的扩散,泡孔的生成和长大,最后是泡沫的冷却和固化,发泡温度150℃至190℃;完全发泡;
(5)扩张:扩张倍率:原管内径尺寸的2.5倍,扩张温度:135℃±10℃,扩张速度2-15米/分钟;即得。
本发明积极效果在于:采用辐射交联法来控制产品的交联度凝胶含量达50~60,发泡生产温度比较宽为30度,生产工艺稳定,成品率可控。辐射交联发泡热缩管是同体积普通热缩管质量的三分之一。
具体实施方式
实施例1:
称取:聚乙烯-醋酸乙烯共聚物EVA1405:90Kg、AC的活化剂:ZnO:3Kg、发泡剂AC(偶氮二甲酰胺):3Kg、润滑剂:硬脂酸锌:3Kg、抗氧剂:抗氧剂1010:5Kg阻燃剂:十溴联苯醚:10份和锑白:15Kg。
步骤为(1)混炼、造粒:混炼的温度高于PE的熔点,低于发泡剂分解的温度,在80-85℃以下干燥2±0.5小时,按上述重量份数配比所有原料均匀混合,混炼均匀、造粒。
(2)挤出:使用45#或50#PE挤出机,挤出温度:一区:110±10℃、二区:120℃±10℃、三区:125℃±10℃、四区:128℃±10℃,机头温度:110℃±10℃;
(3)辐照:辐照能量:1.2~2.5Mev;辐照剂量:7±0.5Mrad;
(4)发泡:发泡过程可在常压下加热进行的,但是这一过程包括了聚合物的相态变化、化学发泡剂的分解反应、热的传递、气体的扩散,泡孔的生成和长大,最后是泡沫的冷却和固化,发泡温度150℃至190℃。完全发泡。
(5)扩张:扩张倍率:原管内径尺寸的2.5倍,扩张温度:135℃±10℃,扩张速度2-15米/分钟;即得。
实施例2
称取:聚乙烯PE 18D:60Kg、AC的活化剂:ZnO:2Kg、发泡剂AC(偶氮二甲酰胺):2Kg、润滑剂:硬脂酸锌1Kg、抗氧剂:抗氧剂AT-10:1Kg、阻燃剂:十溴联苯醚15份、锑白:10Kg,实施步骤同实施例1。
实施例3
称取:聚乙烯-醋酸乙烯共聚物EVA如EVA1405:50Kg、聚乙烯PE 18D:40Kg、AC的活化剂:ZnO 3Kg、发泡剂AC(偶氮二甲酰胺)3Kg、润滑剂:硬脂酸锌3Kg、抗氧剂:抗氧剂10104Kg、阻燃剂:十溴联苯醚15Kg、锑白10Kg,实施步骤同实施例1。
以下对比试验证明本发明产品辐射交联发泡热缩管与普通热缩管产品性能对比:
辐射交联发泡热缩管与化学交联发泡热缩管产品性能对比:
Claims (6)
1、一种辐射交联发泡热缩管材料,其特征在于是由以下物质按质量份组成的:
60-90份聚烯烃材料,2-3份发泡剂,2-3份活化剂,1-3份润滑剂,1-5份抗氧剂,15-25份阻燃剂。
2、权利要求1所述的热缩管材料,其特征在于:聚烯烃材料为聚乙烯-醋酸乙烯共聚物或聚乙烯或其混合物比例:(1~4)∶1。
3、权利要求1所述的热缩管材料,其特征在于:发泡剂为偶氮二甲酰胺。
4、权利要求1所述的热缩管材料,其特征在于:活化剂为氧化锌。
5、权利要求1所述的热缩管材料,其特征在于:阻燃剂为溴系:十溴联苯醚和锑白。
6、权利要求1所述热缩管材料的制备工艺,包括步骤如下:
(1)混炼、造粒:混炼的温度高于PE的熔点,低于发泡剂分解的温度,在80-85℃以下干燥2±0.5小时,按上述重量份数配比所有原料均匀混合,混炼均匀、造粒;
(2)挤出:使用45#或50#PE挤出机,挤出温度:一区:110±10℃、二区:120℃±10℃、三区:125℃±10℃、四区:128℃±10℃,机头温度:110℃±10℃;
(3)辐照:辐照能量:1.2~2.5Mev;辐照剂量:7±0.5Mrad;
(4)发泡:发泡过程可在常压下加热进行的,但是这一过程包括了聚合物的相态变化、化学发泡剂的分解反应、热的传递、气体的扩散,泡孔的生成和长大,最后是泡沫的冷却和固化,发泡温度150℃至190℃。完全发泡;
(5)扩张:扩张倍率:原管内径尺寸的2.5倍,扩张温度:135℃±10℃,扩张速度2-15米/分钟;即得。
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102070809A (zh) * | 2010-12-10 | 2011-05-25 | 东莞三联热缩材料有限公司 | 一种制冷用热缩套管 |
CN102585336A (zh) * | 2012-03-16 | 2012-07-18 | 天津市普立泰高分子科技有限公司 | 化学发泡高密度聚乙烯绝缘料及其制备方法 |
CN103804764A (zh) * | 2012-11-05 | 2014-05-21 | 上海凯波特种电缆料厂有限公司 | 一种充电电缆用发泡弹性体外护套料及其制备方法和应用 |
CN103923371A (zh) * | 2014-04-16 | 2014-07-16 | 深圳市沃尔核材股份有限公司 | 一种辐照交联热缩发泡套管、花纹套管及其制备方法 |
CN105037913A (zh) * | 2015-08-14 | 2015-11-11 | 刘民钦 | 一种高强度的eva管材 |
CN106977760A (zh) * | 2017-04-20 | 2017-07-25 | 苏州固德新材科技有限公司 | 超柔软高回弹树脂发泡材料及其制备方法 |
CN108822378A (zh) * | 2018-05-25 | 2018-11-16 | 湖北祥源新材科技股份有限公司 | 具有抗菌功能的交联聚烯烃发泡材料及其制备方法 |
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2009
- 2009-06-10 CN CN2009100670888A patent/CN101575432B/zh not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102070809A (zh) * | 2010-12-10 | 2011-05-25 | 东莞三联热缩材料有限公司 | 一种制冷用热缩套管 |
CN102070809B (zh) * | 2010-12-10 | 2012-08-29 | 东莞三联热缩材料有限公司 | 一种制冷用热缩套管 |
CN102585336A (zh) * | 2012-03-16 | 2012-07-18 | 天津市普立泰高分子科技有限公司 | 化学发泡高密度聚乙烯绝缘料及其制备方法 |
CN103804764A (zh) * | 2012-11-05 | 2014-05-21 | 上海凯波特种电缆料厂有限公司 | 一种充电电缆用发泡弹性体外护套料及其制备方法和应用 |
CN103923371A (zh) * | 2014-04-16 | 2014-07-16 | 深圳市沃尔核材股份有限公司 | 一种辐照交联热缩发泡套管、花纹套管及其制备方法 |
CN105037913A (zh) * | 2015-08-14 | 2015-11-11 | 刘民钦 | 一种高强度的eva管材 |
CN106977760A (zh) * | 2017-04-20 | 2017-07-25 | 苏州固德新材科技有限公司 | 超柔软高回弹树脂发泡材料及其制备方法 |
CN108822378A (zh) * | 2018-05-25 | 2018-11-16 | 湖北祥源新材科技股份有限公司 | 具有抗菌功能的交联聚烯烃发泡材料及其制备方法 |
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