CN116694150B - 一种电缆防火涂料及其制备方法 - Google Patents
一种电缆防火涂料及其制备方法 Download PDFInfo
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- CN116694150B CN116694150B CN202310830255.XA CN202310830255A CN116694150B CN 116694150 B CN116694150 B CN 116694150B CN 202310830255 A CN202310830255 A CN 202310830255A CN 116694150 B CN116694150 B CN 116694150B
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- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
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- C09D125/14—Copolymers of styrene with unsaturated esters
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2201/02—Flame or fire retardant/resistant
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- C08L2203/20—Applications use in electrical or conductive gadgets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Paints Or Removers (AREA)
Abstract
本发明公开了一种电缆防火涂料,包括底漆和面漆,底漆A组分包含二羟基聚二甲基硅氧烷,聚酯多元醇,羟基丙烯酸树脂,四氯化碳,异丙醇,γ‑氨丙基三乙氧基硅烷,γ‑氨丙基三甲氧基硅烷,疏水型白炭黑,甲基三甲氧基硅烷,空心玻璃微珠,磷氮阻燃剂,三氧化二锑,70#氯化石蜡,氢氧化铝,三氧化钼,分子筛,B组分由催干剂,HDI三聚体,乙酸丁酯组成;面漆包含有机磷改性丙烯酸乳液,硅烷改性丙烯酸乳液,稳定剂,硅酸锂,可膨胀石墨,金红石钛白粉,硅酸盐空心微珠,硼酸锌,矿物纤维,包覆型聚磷酸铵,双季戊四醇,三聚氰胺,六偏磷酸钠,去离子水,消泡剂,增稠剂,PH调节剂。
Description
技术领域
本发明属于涂料技术领域,尤其涉及一种电缆防火涂料,同时本发明还涉及该涂料的制备方法。
背景技术
电缆的应用范围涉及到电力、电讯、建筑、制造等多个行业,由于电缆的绝缘层和护套一般由塑料或橡胶等易燃材料制成,在高温或者长时间处于超负荷运行状态,电缆材料极易受损破坏,一旦产生电弧发生火灾,火将顺着电缆延燃而蔓延到其他部位,不仅烧毁电缆,而且导致大面积停电、停产、甚至造成人员伤亡。水性电缆防火涂料当遇热或者是遇到火灾时,电缆防火层膨胀形成多孔的碳层结构,具有隔热阻燃的功能,且防火层遇热分解产生的氮气、水蒸气等气体可以冲淡空气中的氧气,从而可以阻止火焰沿着电缆线蔓延,避免造成经济损失。
发明内容
本发明提供了一种电缆防火涂料,该涂料具有优异的耐盐水性,高膨胀倍率,优异耐冻融性能,且具有优异的柔韧性能、初期干燥抗开裂性能及抑烟性能。
为达到上述发明目的,本发明采用了如下的技术方案:
一种电缆防火涂料,所述的涂料包括底漆和面漆,所述的底漆包括A组分和B组分,A组分由以下重量份数的原材料组成:二羟基聚二甲基硅氧烷45-55份,聚酯多元醇25-35份,羟基丙烯酸树脂15-20份,四氯化碳8-10份,异丙醇2-5份,γ-氨丙基三乙氧基硅烷2-3份,γ-氨丙基三甲氧基硅烷2-3份,疏水型白炭黑7-13份,甲基三甲氧基硅烷3-7份,空心玻璃微珠4-6份,磷氮阻燃剂10-15份,三氧化二锑3-5份,70#氯化石蜡3-5份,氢氧化铝3-5份,三氧化钼3-5份,分子筛3-4份,B组分由以下重量份数的原材料组成:催干剂0.1-0.5份,HDI三聚体4-6份,乙酸丁酯2-4份;所述的面漆由以下重量份数的原材料组成:去离子水15-20份,消泡剂0.1-1份,增稠剂0.4-0.6份,PH调节剂0.1-0.2份,有机磷改性丙烯酸乳液8-11份,硅烷改性丙烯酸乳液8-11份,稳定剂0.3-0.6份,硅酸锂5-10份,可膨胀石墨8-10份,金红石钛白粉7-9份,硅酸盐空心微珠3-5份,硼酸锌5-7份,矿物纤维3-4份,包覆型聚磷酸铵12-15份,双季戊四醇4-5份,三聚氰胺4-5份,六偏磷酸钠0.5-1份。
进一步的,所述的二羟基聚二甲基硅氧烷的25℃运动黏度为2000-3000mm2/s,所述的聚酯多元醇为华大化学的MX-105,所述的羟基丙烯酸树脂为盛嘉树脂ZJ-2972。
进一步的,所述的硅酸锂模数为4.7-4.9,所述的稳定剂为季铵化合物,所述的可膨胀石墨为100目可膨胀石墨。
进一步的,所述的有机磷改性丙烯酸乳液由以下重量份数的原材料组成:去离子水:50-58份,可聚合乳化剂:1.2-1.6份,非离子乳化剂:0.8-1份,过硫酸铵:0.4-0.6份,丙烯酸丁酯:30-35份,苯乙烯:36-40份,甲基丙烯酸甲酯:1-3份,丙烯酸羟乙酯:3-5份,乙烯基磷酸二乙酯:1-2份,乙烯基磷酸二甲酯:1-2份,FF6M:0.06份,叔丁基过氧化氢:0.06份,氨水:0.06份。
进一步的,所述的有机磷改性丙烯酸乳液采用以下方法制备得到:
步骤1:在反应器a中加入去离子水25份、可聚合乳化剂0.7份、非离子乳化剂0.4份、过硫酸铵0.3份,在1000r/min中的转速下搅拌0.5h,加入苯乙烯、甲基丙烯酸甲酯、丙烯酸羟乙酯、丙烯酸丁酯,1000r/min搅拌20min,得到预乳化液备用;
步骤2:在反应器b中加入剩余的去离子水、剩余可聚合乳化剂、剩余非离子乳化剂,600r/min搅拌10min,升温到80℃,加入剩余的过硫酸铵,加入10%的预乳化液,80-85℃反应30min,然后均匀滴加85%的预乳化液,1.5h滴加完成;
步骤3:将乙烯基磷酸二乙酯,乙烯基磷酸二甲酯加入到剩余的预乳化液中,混合均匀,滴加入反应器b中,10min滴加完成,86-88℃保温2h;
步骤4:将反应器b降温到65℃,在反应器b中分两次交替等量加入氧化剂叔丁基过氧化氢,还原剂FF6M,时间间隔为5min,添加完成后在65℃下反应0.5h。
进一步的,所述的硅烷改性丙烯酸乳液由以下重量份数的原材料组成:去离子水:50-58份,可聚合乳化剂:1.2-1.6份,非离子乳化剂:0.8-1份,过硫酸铵:0.4-0.6份,丙烯酸丁酯:30-35份,苯乙烯:36-40份,甲基丙烯酸甲酯:1-3份,丙烯酸羟乙酯:3-5份,乙烯基三乙氧基硅烷:0.2-0.3份,乙烯基三甲氧基硅烷:0.2-0.3份,γ-甲基丙烯酰氧基丙基三甲氧基硅烷:0.2-0.3份,γ-缩水甘油醚氧丙基三甲氧基硅烷:0.2-0.3份,FF6M:0.04-0.06份,叔丁基过氧化氢:0.04-0.06份,氨水:0.06份。
进一步的,所述的硅烷改性丙烯酸乳液采用以下方法制备得到:
S1:在反应器c中加入去离子水25份、可聚合乳化剂0.7份、非离子乳化剂0.4份、过硫酸铵0.3份,在1000r/min中的转速下搅拌0.5h,加入苯乙烯、甲基丙烯酸甲酯、丙烯酸羟乙酯、丙烯酸丁酯,1000r/min搅拌20min,得到预乳化液备用;
S2:在反应器d中加入剩余的去离子水、剩余可聚合乳化剂、剩余非离子乳化剂,600r/min搅拌10min,升温到80℃,加入剩余的过硫酸铵,加入10%的预乳化液,80-85℃反应30min,然后均匀滴加85%的预乳化液,1.5h滴加完成;
S3:将乙烯基三乙氧基硅烷,乙烯基三甲氧基硅烷,γ-甲基丙烯酰氧基丙基三甲氧基硅烷,γ-缩水甘油醚氧丙基三甲氧基硅烷加入到剩余的预乳化液中,混合均匀,滴加入反应器d中,10min滴加完成,86-88℃保温2h;
S4:将反应器d降温到65℃,在反应器d中分两次交替等量加入氧化剂叔丁基过氧化氢,还原剂FF6M,时间间隔为5min,添加完成后在65℃下反应0.5h。
进一步的,所述的分子筛为4A分子筛,所述的疏水型白炭黑为德固赛的R812S,所述的催干剂为二月桂酸二丁基锡。
进一步的,所述的包覆型聚磷酸铵为密胺包覆的聚磷酸铵,所述的增稠剂为海泡石水合硅酸镁。
上述的一种电缆防火涂料的制备方法,包括以下步骤:所述的底漆由以下方法制备得到:
将二羟基聚二甲基硅氧烷、聚酯多元醇、羟基丙烯酸树脂加入反应器中,加热到100℃,真空脱水30分钟,降温到30℃以下,按照配方量加入疏水型白炭黑、四氯化碳、异丙醇,高速搅拌15min,加入空心玻璃微珠,磷氮阻燃剂,三氧化二锑,氢氧化铝,三氧化钼,70#氯化石蜡,γ-氨丙基三乙氧基硅烷,γ-氨丙基三甲氧基硅烷,甲基三甲氧基硅烷,分子筛,过三辊研磨机,即得到电缆防火涂料底漆A组分;按照B组分配方量将催干剂、HDI三聚体、乙酸丁酯混合均匀即得到电缆防火涂料底漆B组分;
所述的面漆由以下方法制备得到:
将去离子水、增稠剂、PH调节剂、六偏磷酸钠、消泡剂加入反应器中,1800r/min搅拌15min,加入金红石钛白粉、硅酸盐空心微珠、硼酸锌、可膨胀石墨、矿物纤维、包覆型聚磷酸铵、双季戊四醇、三聚氰胺,1800r/min搅拌30min,降低搅拌转速到600r/min,加入有机磷改性丙烯酸乳液,硅烷改性丙烯酸乳液,稳定剂,搅拌15min,加入硅酸锂,搅拌均匀,即得到防火涂料面漆。
本发明制备的电缆防火涂料阻燃性能优异且具有一定的抑烟性,耐盐水(3%)可达15天,耐冻融循环可达30次以上,弯曲不开裂,脱落,且初期干燥抗开裂性能优异。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本发明,并不用于限定本发明。
本发明有机磷改性丙烯酸乳液配方如下表一,分别用树脂a,树脂b,树脂c表示。
表一
原材料 | 树脂a | 树脂b | 树脂c |
去离子水 | 50 | 54 | 58 |
可聚合乳化剂 | 1.2 | 1.4 | 1.6 |
非离子乳化剂 | 1 | 0.9 | 0.8 |
过硫酸铵 | 0.4 | 0.5 | 0.6 |
丙烯酸丁酯 | 30 | 32 | 35 |
苯乙烯 | 40 | 38 | 36 |
甲基丙烯酸甲酯 | 1 | 2 | 3 |
丙烯酸羟乙酯 | 5 | 4 | 3 |
乙烯基磷酸二乙酯 | 1 | 1.5 | 2 |
乙烯基磷酸二甲酯 | 2 | 1.5 | 1 |
FF6M | 0.06 | 0.06 | 0.06 |
叔丁基过氧化氢 | 0.06 | 0.06 | 0.06 |
氨水 | 0.06 | 0.06 | 0.06 |
上述的有机磷改性丙烯酸乳液采用以下方法制备得到:
步骤1:在反应器a中加入去离子水25份、可聚合乳化剂0.7份、非离子乳化剂0.4份、过硫酸铵0.3份,在1000r/min中的转速下搅拌0.5h,加入苯乙烯、甲基丙烯酸甲酯、丙烯酸羟乙酯、丙烯酸丁酯,1000r/min搅拌20min,得到预乳化液备用;
步骤2:在反应器b中加入剩余的去离子水、剩余可聚合乳化剂、剩余非离子乳化剂,600r/min搅拌10min,升温到80℃,加入剩余的过硫酸铵,加入10%的预乳化液,80-85℃反应30min,然后均匀滴加85%的预乳化液,1.5h滴加完成;
步骤3:将乙烯基磷酸二乙酯,乙烯基磷酸二甲酯加入到剩余的预乳化液中,混合均匀,滴加入反应器b中,10min滴加完成,86-88℃保温2h;
步骤4:将反应器b降温到65℃,在反应器b中分两次交替等量加入氧化剂叔丁基过氧化氢,还原剂FF6M,时间间隔为5min,添加完成后在65℃下反应0.5h。
本发明硅烷改性丙烯酸乳液配方如下表二,分别用树脂d,树脂e,树脂f表示。
表二
上述的硅烷改性丙烯酸乳液采用以下方法制备得到:
S1:在反应器c中加入去离子水25份、可聚合乳化剂0.7份、非离子乳化剂0.4份、过硫酸铵0.3份,在1000r/min中的转速下搅拌0.5h,加入苯乙烯、甲基丙烯酸甲酯、丙烯酸羟乙酯、丙烯酸丁酯,1000r/min搅拌20min,得到预乳化液备用;
S2:在反应器d中加入剩余的去离子水、剩余可聚合乳化剂、剩余非离子乳化剂,600r/min搅拌10min,升温到80℃,加入剩余的过硫酸铵,加入10%的预乳化液,80-85℃反应30min,然后均匀滴加85%的预乳化液,1.5h滴加完成;
S3:将乙烯基三乙氧基硅烷,乙烯基三甲氧基硅烷,γ-甲基丙烯酰氧基丙基三甲氧基硅烷,γ-缩水甘油醚氧丙基三甲氧基硅烷加入到剩余的预乳化液中,混合均匀,滴加入反应器d中,10min滴加完成,86-88℃保温2h;
S4:将反应器d降温到65℃,在反应器d中分两次交替等量加入氧化剂叔丁基过氧化氢,还原剂FF6M,时间间隔为5min,添加完成后在65℃下反应0.5h。
实施例
实施例1~3、对比例1~4分别提供了一种电缆防火涂料底漆,该电缆防火涂料底漆由A组分和B组分组成,其中A组分中各原料的重量份数如下表三所示。
表三
上述的实施例1中二羟基聚二甲基硅氧烷25℃运动黏度为3000mm2/s,其余配方中的二羟基聚二甲基硅氧烷25℃运动黏度为3000mm2/s;
上述配方中的聚酯多元醇为华大化学的MX-105,羟基丙烯酸树脂为盛嘉树脂ZJ-2972,分子筛为4A分子筛。
对比例4中的疏水型白炭黑为HDK H15,其余配方中的疏水型白炭黑为德固赛的R812S。
与A组分相对应的B组分各原料的重量份数如下表四所示:
表四
原材料 | 实施例1 | 实施例2 | 实施例3 | 对比例1 | 对比例2 | 对比例3 | 对比例4 |
催干剂 | 0.1 | 0.3 | 0.5 | 0.3 | 0.3 | 0.3 | 0.3 |
HDI三聚体 | 4 | 5 | 6 | 5 | 5 | 5 | 5 |
乙酸丁酯 | 2 | 3 | 4 | 3 | 3 | 3 | 3 |
上述催干剂为二月桂酸二丁基锡。
实施例1~3,对比例1-4所提供的涂料的制备方法具体包括以下步骤:
将二羟基聚二甲基硅氧烷、聚酯多元醇、羟基丙烯酸树脂加入反应器中,加热到100℃,真空脱水30分钟,降温到30℃以下,按照配方量加入疏水型白炭黑、四氯化碳、异丙醇,高速搅拌15min,加入空心玻璃微珠,磷氮阻燃剂,三氧化二锑,氢氧化铝,三氧化钼,70#氯化石蜡,γ-氨丙基三乙氧基硅烷,γ-氨丙基三甲氧基硅烷,甲基三甲氧基硅烷,分子筛,过三辊研磨机,即得到电缆防火涂料底漆A组分;按照B组分配方量将催干剂、HDI三聚体、乙酸丁酯混合均匀即得到电缆防火涂料底漆B组分。
对实施例1~3,对比例1~4制备的电缆防火涂料底漆进行相关性能检测,检测结果如下表五所示。
表五
实施例1~3、对比例1~4电缆防火涂料底漆对应的面漆各原料的重量份数如下表六所示:
表六
对比例3中的可膨胀石墨为300目膨胀石墨。其余配方可膨胀石墨为100目可膨胀石墨,硅酸锂模数为4.7-4.9,稳定剂为季铵化合物,为澳汉化工的稳定剂,包覆型聚磷酸铵为密胺包覆的聚磷酸铵,增稠剂为海泡石水合硅酸镁。
检测例
实施例1~3、对比例1~4电缆防火涂料面漆进行相关性能测试,具体测试结果如下表六所示。
表六
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换或改进等,均应包含在本发明的保护范围之内。
Claims (8)
1.一种电缆防火涂料,其特征在于,所述的涂料包括底漆和面漆,所述的底漆包括A组分和B组分,A组分由以下重量份数的原材料组成:二羟基聚二甲基硅氧烷45-55份,聚酯多元醇25-35份,羟基丙烯酸树脂15-20份,四氯化碳8-10份,异丙醇2-5份,γ-氨丙基三乙氧基硅烷2-3份,γ-氨丙基三甲氧基硅烷2-3份,疏水型白炭黑7-13份,甲基三甲氧基硅烷3-7份,空心玻璃微珠4-6份,磷氮阻燃剂10-15份,三氧化二锑3-5份,70#氯化石蜡3-5份,氢氧化铝3-5份,三氧化钼3-5份,分子筛3-4份;B组分由以下重量份数的原材料组成:催干剂0.1-0.5份,HDI三聚体4-6份,乙酸丁酯2-4份;所述的面漆由以下重量份数的原材料组成:去离子水15-20份,消泡剂0.1-1份,增稠剂0.4-0.6份,pH调节剂0.1-0.2份,有机磷改性丙烯酸乳液8-11份,硅烷改性丙烯酸乳液8-11份,稳定剂0.3-0.6份,硅酸锂5-10份,可膨胀石墨8-10份,金红石钛白粉7-9份,硅酸盐空心微珠3-5份,硼酸锌5-7份,矿物纤维3-4份,包覆型聚磷酸铵12-15份,双季戊四醇4-5份,三聚氰胺4-5份,六偏磷酸钠0.5-1份;所述的有机磷改性丙烯酸乳液由以下重量份数的原材料组成:去离子水:50-58份,可聚合乳化剂:1.2-1.6份,非离子乳化剂:0.8-1份,过硫酸铵:0.4-0.6份,丙烯酸丁酯:30-35份,苯乙烯:36-40份,甲基丙烯酸甲酯:1-3份,丙烯酸羟乙酯:3-5份,乙烯基磷酸二乙酯:1-2份,乙烯基磷酸二甲酯:1-2份,FF6M:0.06份,叔丁基过氧化氢:0.06份,氨水:0.06份;所述的硅烷改性丙烯酸乳液由以下重量份数的原材料组成:去离子水:50-58份,可聚合乳化剂:1.2-1.6份,非离子乳化剂:0.8-1份,过硫酸铵:0.4-0.6份,丙烯酸丁酯:30-35份,苯乙烯:36-40份,甲基丙烯酸甲酯:1-3份,丙烯酸羟乙酯:3-5份,乙烯基三乙氧基硅烷:0.2-0.3份,乙烯基三甲氧基硅烷:0.2-0.3份,γ-甲基丙烯酰氧基丙基三甲氧基硅烷:0.2-0.3份,γ-缩水甘油醚氧丙基三甲氧基硅烷:0.2-0.3份,FF6M:0.04-0.06份,叔丁基过氧化氢:0.04-0.06份,氨水:0.06份。
2.根据权利要求1所述的一种电缆防火涂料,其特征在于,所述的二羟基聚二甲基硅氧烷的25℃运动黏度为2000-3000mm2/s,所述的聚酯多元醇为华大化学的MX-105,所述的羟基丙烯酸树脂为盛嘉树脂ZJ-2972。
3.根据权利要求1所述的一种电缆防火涂料,其特征在于,所述的硅酸锂模数为4.7-4.9,所述的稳定剂为季铵化合物,所述的可膨胀石墨为100目可膨胀石墨。
4.根据权利要求1所述的一种电缆防火涂料,其特征在于,所述的有机磷改性丙烯酸乳液采用以下方法制备得到:
步骤1:在反应器a中加入去离子水25份、可聚合乳化剂0.7份、非离子乳化剂0.4份、过硫酸铵0.3份,在1000r/min中的转速下搅拌0.5h,加入苯乙烯、甲基丙烯酸甲酯、丙烯酸羟乙酯、丙烯酸丁酯,1000r/min搅拌20min,得到预乳化液备用;
步骤2:在反应器b中加入剩余的去离子水、剩余可聚合乳化剂、剩余非离子乳化剂,600r/min搅拌10min,升温到80℃,加入剩余的过硫酸铵,加入10%的预乳化液,80-85℃反应30min,然后均匀滴加85%的预乳化液,1.5h滴加完成;
步骤3:将乙烯基磷酸二乙酯,乙烯基磷酸二甲酯加入到剩余的预乳化液中,混合均匀,滴加入反应器b中,10min滴加完成,86-88℃保温2h;
步骤4:将反应器b降温到65℃,在反应器b中分两次交替等量加入氧化剂叔丁基过氧化氢,还原剂FF6M,时间间隔为5min,添加完成后在65℃下反应0.5h。
5.根据权利要求1所述的一种电缆防火涂料,其特征在于,所述的硅烷改性丙烯酸乳液采用以下方法制备得到:
S1:在反应器c中加入去离子水25份、可聚合乳化剂0.7份、非离子乳化剂0.4份、过硫酸铵0.3份,在1000r/min中的转速下搅拌0.5h,加入苯乙烯、甲基丙烯酸甲酯、丙烯酸羟乙酯、丙烯酸丁酯,1000r/min搅拌20min,得到预乳化液备用;
S2:在反应器d中加入剩余的去离子水、剩余可聚合乳化剂、剩余非离子乳化剂,600r/min搅拌10min,升温到80℃,加入剩余的过硫酸铵,加入10%的预乳化液,80-85℃反应30min,然后均匀滴加85%的预乳化液,1.5h滴加完成;
S3:将乙烯基三乙氧基硅烷、乙烯基三甲氧基硅烷、γ-甲基丙烯酰氧基丙基三甲氧基硅烷、γ-缩水甘油醚氧丙基三甲氧基硅烷加入到剩余的预乳化液中,混合均匀,滴加入反应器d中,10min滴加完成,86-88℃保温2h;
S4:将反应器d降温到65℃,在反应器d中分两次交替等量加入氧化剂叔丁基过氧化氢,还原剂FF6M,时间间隔为5min,添加完成后在65℃下反应0.5h。
6.根据权利要求1所述的一种电缆防火涂料,其特征在于,所述的分子筛为4A分子筛,所述的疏水型白炭黑为德固赛的R812S,所述的催干剂为二月桂酸二丁基锡。
7.根据权利要求1所述的一种电缆防火涂料,其特征在于,所述的包覆型聚磷酸铵为密胺包覆的聚磷酸铵,所述的增稠剂为海泡石水合硅酸镁。
8.一种如权利要求1-7中任一项所述的一种电缆防火涂料的制备方法,其特征在于,包括以下步骤:所述的底漆由以下方法制备得到:
将二羟基聚二甲基硅氧烷、聚酯多元醇、羟基丙烯酸树脂加入反应器中,加热到100℃,真空脱水30分钟,降温到30℃以下,按照配方量加入疏水型白炭黑、四氯化碳,异丙醇,高速搅拌15min,加入空心玻璃微珠,磷氮阻燃剂,三氧化二锑,氢氧化铝,三氧化钼,70#氯化石蜡,γ-氨丙基三乙氧基硅烷,γ-氨丙基三甲氧基硅烷,甲基三甲氧基硅烷,分子筛,过三辊研磨机,即得到电缆防火涂料底漆A组分;按照B组分配方量将催干剂、HDI三聚体、乙酸丁酯混合均匀即得到电缆防火涂料底漆B组分;
所述的面漆由以下方法制备得到:
将去离子水、增稠剂、pH调节剂、六偏磷酸钠、消泡剂加入反应器中,1800r/min搅拌15min,加入金红石钛白粉、硅酸盐空心微珠、硼酸锌、可膨胀石墨、矿物纤维、包覆型聚磷酸铵、双季戊四醇、三聚氰胺,1800r/min搅拌30min,降低搅拌转速到600r/min,加入有机磷改性丙烯酸乳液,硅烷改性丙烯酸乳液,稳定剂,搅拌15min,加入硅酸锂,搅拌均匀,即得到防火涂料面漆。
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