WO2023134036A1 - 一种环保型乙烯基酯树脂 - Google Patents

一种环保型乙烯基酯树脂 Download PDF

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WO2023134036A1
WO2023134036A1 PCT/CN2022/085330 CN2022085330W WO2023134036A1 WO 2023134036 A1 WO2023134036 A1 WO 2023134036A1 CN 2022085330 W CN2022085330 W CN 2022085330W WO 2023134036 A1 WO2023134036 A1 WO 2023134036A1
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environment
vinyl ester
acid
polymerization inhibitor
ester resin
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PCT/CN2022/085330
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French (fr)
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方亨
韦杰
何敏思
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广东美亨新材料科技有限公司
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Priority to US18/150,923 priority Critical patent/US20230220151A1/en
Publication of WO2023134036A1 publication Critical patent/WO2023134036A1/zh

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/14Polycondensates modified by chemical after-treatment
    • C08G59/1433Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
    • C08G59/1438Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
    • C08G59/1455Monocarboxylic acids, anhydrides, halides, or low-molecular-weight esters thereof
    • C08G59/1461Unsaturated monoacids
    • C08G59/1466Acrylic or methacrylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/14Polycondensates modified by chemical after-treatment
    • C08G59/1433Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
    • C08G59/1438Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen

Definitions

  • the invention relates to the field of polymer materials, in particular to an environment-friendly vinyl ester resin.
  • Vinyl ester resin refers to the resin with unsaturated double bonds in the terminal or side groups of molecules synthesized from epoxy resin and unsaturated acid as the main raw materials. This type of resin combines the excellent mechanical properties of epoxy resin and the excellent molding process of unsaturated polyester resin. After fiber reinforcement, the mechanical properties are reliable. It has a very broad market in the field of corrosion-resistant FRP products and is widely used in petroleum. , chemical industry, papermaking, metallurgy, thermal power, medicine, food, transportation, environmental protection, construction and other industries.
  • the present invention provides an environmentally friendly vinyl ester resin, which is environmentally safe and has excellent chemical properties.
  • the present invention adopts following technical scheme:
  • An environment-friendly vinyl ester resin which is prepared by mixing the following raw materials in weight percent: 20-65wt% epoxy resin, 5-35wt% methyl monomer, 8-25wt% unsaturated acid, and 0.01-0.3wt catalyst %, polymerization inhibitor 0.01-0.08wt%, crosslinking agent 10-40wt%.
  • methyl monomer is one or more of methacrylic acid and its derivatives.
  • methacrylic acid derivatives include methyl methacrylate, ethyl methacrylate, butyl methacrylate, monoethylene glycol methacrylate, ⁇ -hydroxypropyl methacrylate, glycidyl methacrylate Any of esters and allyl methacrylate.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 5-20 wt% of cobalt chloride, 10-30 wt% of sodium hydroxide, 20-60 wt% of acetylacetone, and 10-40 wt% of water.
  • the preparation method of the catalyst is as follows: compounding the above-mentioned raw materials, feeding according to the formula, and mixing evenly after physical stirring.
  • the performance of commercially available catalysts is unstable, and precipitation may occur, while the conversion rate is low and the reaction is incomplete.
  • the catalyst obtained by the present invention through the mixing of the above-mentioned raw materials has stable performance and can overcome the above-mentioned existing technical difficulties.
  • crosslinking agent is compounded from tetrapropylene, n-butyl ester, methyl ester, butyric acid methacrylate, and hydroxyethyl ester.
  • the crosslinking agent is prepared by mixing the following raw materials in weight percentage: 8-25wt% of tetrapolypropylene, 5-20wt% of n-butyl ester, 5-20wt% of methyl ester, 3-15wt% of methacrylic acid butyric acid %, hydroxyethyl ester 20-37wt%.
  • the unsaturated acid is one of acrylic acid, fumaric acid, phthalic acid, crotonic acid, and fumaric acid.
  • the polymerization inhibitor is one or more of tert-butylhydroquinone, tert-butylcatechol, p-benzoquinone, methylhydroquinone, hydroquinone, methylhydroquinone .
  • epoxy resin is epoxy resin 128 or novolac epoxy resin.
  • the preparation method of the environment-friendly vinyl ester resin comprises the following steps:
  • the environment-friendly vinyl ester resin of the present invention uses epoxy resin, methyl monomer, unsaturated acid, catalyst, polymerization inhibitor, and crosslinking agent as raw materials, and limits the content ratio between each raw material, without benzene Ethylene emission, environment-friendly; At the same time, the obtained resin has high cross-linking density, high strength, good impact resistance, and can be widely used in pipeline molding, pipeline repair, spraying construction, high corrosion resistance engineering and other fields.
  • An environment-friendly vinyl ester resin which is mixed with the following raw materials in weight percentage: epoxy resin 12840%, methyl monomer methacrylic acid 20%, fumaric acid 20wt%, catalyst 0.01%, polymerization inhibitor tert-butyl Hydroquinone 0.08%, crosslinking agent 19.91%.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 10 wt% of cobalt chloride, 15 wt% of sodium hydroxide, 45 wt% of acetylacetone and 30 wt% of water.
  • the cross-linking agent is prepared by mixing raw materials in the following weight percentages: 15 wt% tetrapolypropylene, 15 wt% n-butyl ester, 20 wt% methyl ester, 15 wt% butyric methacrylate and 35 wt% hydroxyethyl ester.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 10 wt% of cobalt chloride, 15 wt% of sodium hydroxide, 45 wt% of acetylacetone and 30 wt% of water.
  • the cross-linking agent is prepared by mixing raw materials in the following weight percentages: 15 wt% tetrapolypropylene, 15 wt% n-butyl ester, 20 wt% methyl ester, 15 wt% butyric methacrylate and 35 wt% hydroxyethyl ester.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 10 wt% of cobalt chloride, 15 wt% of sodium hydroxide, 45 wt% of acetylacetone and 30 wt% of water.
  • the cross-linking agent is prepared by mixing raw materials in the following weight percentages: 15 wt% tetrapolypropylene, 15 wt% n-butyl ester, 20 wt% methyl ester, 15 wt% butyric methacrylate and 35 wt% hydroxyethyl ester.
  • An environment-friendly vinyl ester resin which is mixed by the following raw materials in weight percentage: epoxy resin 12865%, methyl monomer methacrylic acid 5%, crotonic acid 8wt%, catalyst 0.1%, polymerization inhibitor methyl Hydroquinone 0.01%, crosslinking agent 21.89%.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 10 wt% of cobalt chloride, 15 wt% of sodium hydroxide, 45 wt% of acetylacetone and 30 wt% of water.
  • the cross-linking agent is prepared by mixing raw materials in the following weight percentages: 15 wt% tetrapolypropylene, 15 wt% n-butyl ester, 20 wt% methyl ester, 15 wt% butyric methacrylate and 35 wt% hydroxyethyl ester.
  • An environment-friendly vinyl ester resin which is mixed with the following raw materials in weight percentage: epoxy resin 12840%, methyl monomer methacrylic acid 20%, fumaric acid 20wt%, catalyst 0.01%, polymerization inhibitor Hydroquinone 0.08%, crosslinking agent 19.91%.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 5 wt% of cobalt chloride, 30 wt% of sodium hydroxide, 25 wt% of acetylacetone and 40 wt% of water.
  • the cross-linking agent is prepared by mixing raw materials in the following weight percentages: 15 wt% tetrapolypropylene, 15 wt% n-butyl ester, 20 wt% methyl ester, 15 wt% butyric methacrylate and 35 wt% hydroxyethyl ester.
  • An environment-friendly vinyl ester resin which is mixed with the following raw materials in weight percentage: epoxy resin 12840%, methyl monomer methacrylic acid 20%, fumaric acid 20wt%, catalyst 0.01%, polymerization inhibitor tert-butyl Hydroquinone 0.08%, crosslinking agent 19.91%.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 20 wt% of cobalt chloride, 10 wt% of sodium hydroxide, 60 wt% of acetylacetone and 10 wt% of water.
  • the crosslinking agent is prepared by mixing raw materials in the following weight percentages: 25 wt% tetrapropylene, 20 wt% n-butyl ester, 20 wt% methyl ester, 15 wt% butyric methacrylate, and 20 wt% hydroxyethyl ester.
  • An environment-friendly vinyl ester resin which is mixed with the following raw materials in weight percentage: epoxy resin 12840%, methyl monomer methacrylic acid 20%, fumaric acid 20wt%, catalyst 0.01%, polymerization inhibitor tert-butyl Hydroquinone 0.08%, crosslinking agent 19.91%.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 20 wt% of cobalt chloride, 10 wt% of sodium hydroxide, 60 wt% of acetylacetone and 10 wt% of water.
  • the crosslinking agent is prepared by mixing raw materials in the following weight percentages: 18wt% tetrapolypropylene, 15wt% n-butyl ester, 20wt% methyl ester, 10wt% butyric methacrylate, and 37wt% hydroxyethyl ester.
  • An environment-friendly vinyl ester resin which is mixed with the following raw materials in weight percentage: epoxy resin 12840%, methyl monomer methacrylic acid 20%, fumaric acid 20wt%, catalyst 0.01%, polymerization inhibitor tert-butyl Hydroquinone 0.08%, crosslinking agent 19.91%.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 10 wt% of cobalt chloride, 15 wt% of sodium hydroxide, 45 wt% of acetylacetone and 30 wt% of water.
  • the cross-linking agent is prepared by mixing raw materials in the following weight percentages: 15 wt% tetrapolypropylene, 15 wt% n-butyl ester, 20 wt% methyl ester, 15 wt% butyric methacrylate and 35 wt% hydroxyethyl ester.
  • An environment-friendly vinyl ester resin which is mixed with the following raw materials by weight percentage: novolac epoxy resin 40%, methyl monomer methacrylic acid 20%, fumaric acid 20wt%, catalyst 0.01%, polymerization inhibitor tert Butyl hydroquinone 0.08%, crosslinking agent 19.91%.
  • the catalyst is prepared by mixing the following raw materials in weight percentage: 10 wt% of cobalt chloride, 15 wt% of sodium hydroxide, 45 wt% of acetylacetone and 30 wt% of water.
  • the cross-linking agent is prepared by mixing raw materials in the following weight percentages: 15 wt% tetrapolypropylene, 15 wt% n-butyl ester, 20 wt% methyl ester, 15 wt% butyric methacrylate and 35 wt% hydroxyethyl ester.
  • An environment-friendly vinyl ester resin which is mixed by the following raw materials in weight percentage: epoxy resin 12840wt%, methyl monomer methacrylic acid 20wt%, fumaric acid 20wt%, catalyst aluminum chloride 0.01wt%, barrier
  • the polymerization agent tert-butyl hydroquinone is 0.08wt%, and the crosslinking agent is 19.91wt%.
  • the cross-linking agent is prepared by mixing raw materials in the following weight percentages: 15 wt% tetrapolypropylene, 15 wt% n-butyl ester, 20 wt% methyl ester, 15 wt% butyric methacrylate and 35 wt% hydroxyethyl ester.
  • the elongation at break of the environmentally friendly vinyl ester resin prepared in Examples 1-9 is 3.5-5.4%
  • the bending strength is 117-138MPa
  • the gel time is 12-18min
  • the performance is better than Comparative example 1.
  • the present invention uses epoxy resin, methyl monomer, unsaturated acid, catalyst, polymerization inhibitor, and crosslinking agent as raw materials, and limits the content ratio between each raw material, without styrene emission, and is environmentally friendly; at the same time,
  • the resin has high cross-linking density, high strength, and good impact resistance. It can be widely used in pipeline molding, pipeline repair, spraying construction, high corrosion resistance engineering and other fields.

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  • Chemical Kinetics & Catalysis (AREA)
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  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
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Abstract

本发明涉及高分子材料领域,尤其涉及一种环保型乙烯基酯树脂。本发明的环保型乙烯基酯树脂,由以下重量百分比的原料混合制备而成:环氧树脂20-65wt%,甲基单体5-35wt%,不饱和酸8-25wt%,催化剂0.01-0.3wt%,阻聚剂0.01-0.08wt%,交联剂10-40wt%。通过以环氧树脂、甲基单体、不饱和酸、催化剂、阻聚剂、交联剂为原料,并限定各原料之间的含量配比,无苯乙烯排放,环境友好;同时得到的树脂交联密度高,具有较高的强度,制品抗冲击性好,可广泛应用于管道成型、管道修复、喷刷施工、高耐腐蚀工程等领域。

Description

一种环保型乙烯基酯树脂 技术领域
本发明涉及高分子材料领域,尤其涉及一种环保型乙烯基酯树脂。
背景技术
乙烯基酯树脂是指以环氧树脂和不饱和酸为主要原料合成的分子端基或侧基含有不饱和双键的树脂。该类树脂结合环氧树脂优异的力学性能与不饱和聚酯树脂优异的成型工艺于一身,经过纤维增强之后,力学性能可靠,在耐腐蚀玻璃钢制品领域具有很广阔的市场,被广泛应用于石油、化工、造纸、冶金、热电、医药、食品、交通、环保、建筑等行业。
目前市面上在售的乙烯基酯树脂大多采用苯乙烯作为稀释剂,但是苯乙烯的危害很大。苯乙烯挥发快、对环境造成污染,并对操作者的身体健康造成影响,因此低苯乙烯型或无苯乙烯型材料是当前该领域的研究热点。
发明内容
针对以上技术问题,本发明提供一种环保型乙烯基酯树脂,环保安全,且具有优异的化学特性。
本发明采用以下技术方案:
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合制备而成:环氧树脂20-65wt%,甲基单体5-35wt%,不饱和酸8-25wt%,催化剂0.01-0.3wt%,阻聚剂0.01-0.08wt%,交联剂10-40wt%。
进一步的,所述甲基单体为甲基丙烯酸及其衍生物中的一种或几种。具体的,甲基丙烯酸衍生物包括甲基丙烯酸甲酯、甲基丙烯酸乙酯、甲基丙烯酸丁酯、甲基丙烯酸单乙二醇酯、甲基丙烯酸β-羟丙酯、甲基丙烯酸缩水甘油酯、甲基丙烯酸烯丙酯中的任一种。
进一步的,所述催化剂由以下重量百分比的原料混合制备而成:氯化钴5-20wt%、氢氧化钠10-30wt%、乙酰丙酮20-60wt%、水10-40wt%。
进一步的,催化剂的制备方法为:通过上述原料复配而成,按照配方投料,经过物理搅拌,混合均匀即可。市售的催化剂性能不稳定,会出现沉淀的情况,同时转化率较低,反应不完全。而本发明通过上述原料混合作用,得到的催化剂性能稳定,能克服上述现有的技术难题。
进一步的,所述交联剂由四聚丙烯、正丁酯、甲酯、甲基丙烯酸丁酸、羟乙酯复配而成。
进一步的,所述交联剂由以下重量百分比的原料混合制备而成:四聚丙烯8-25wt%、正丁酯5-20wt%、甲酯5-20wt%、甲基丙烯酸丁酸3-15wt%、羟乙酯20-37wt%。
进一步的,所述不饱和酸为丙烯酸、富马酸、苯二甲酸、丁烯酸、反丁烯二酸中的一种。
进一步的,所述阻聚剂为叔丁基对苯二酚、叔丁基邻苯二酚、对苯醌、甲基氢醌、对苯二酚、甲基对苯二酚中的一种或几种。
进一步的,所述环氧树脂为环氧树脂128或酚醛环氧树脂。
进一步的,所述环保型乙烯基酯树脂的制备方法,包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入占阻聚剂总量20-60%的阻聚剂,混合均匀,在125-130℃下保温2-3h;
(2)当检测到树脂酸值达到15-45mgKOH/g时,加入剩余的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
进一步的,环保型乙烯基酯树脂制备方法中对降温速度没有特殊要求,快速降温的目的是缩短整个生产所需时间,提高生产效率。
本发明的环保型乙烯基酯树脂,具有以下有益效果:
本发明的环保型乙烯基酯树脂,通过以环氧树脂、甲基单体、不饱和酸、催化剂、阻聚剂、交联剂为原料,并限定各原料之间的含量配比,无苯乙烯排放,环境友好;同时得到的树脂交联密度高,具有较高的强度,制品抗冲击性好,可广泛应用于管道成型、管道修复、喷刷施工、高耐腐蚀工程等领域。
具体实施方式
下面将结合具体实施例,对本发明的技术方案进行清楚、完整的描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通的技术人员在没有做出创造性劳动的前提下所获得的所有其它实施例,都属于本发明的保护范围。
实施例1
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:环氧树脂12840%,甲基单体甲基丙烯酸20%,富马酸20wt%,催化剂0.01%,阻聚剂叔丁基对苯二酚0.08%,交联剂19.91%。
催化剂由以下重量百分比的原料混合制备而成:氯化钴10wt%、氢氧化钠15wt%、乙酰丙酮45wt%、水30wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯15wt%、正丁酯15wt%、甲酯20wt%、甲基丙烯酸丁酸15wt%、羟乙酯35wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入占阻聚剂总量20%的阻聚剂,混合均匀,在130℃下保温2h;
(2)当检测到树脂酸值达到15mgKOH/g时,加入剩余80%的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
实施例2
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:
环氧树脂12830%,甲基单体甲基丙烯酸34.93%,苯二甲酸25wt%,催化剂0.04%,阻聚剂对苯醌0.03%,交联剂10%。
催化剂由以下重量百分比的原料混合制备而成:氯化钴10wt%、氢氧化钠15wt%、乙酰丙酮45wt%、水30wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯15wt%、正丁酯15wt%、甲酯20wt%、甲基丙烯酸丁酸15wt%、羟乙酯35wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入占阻聚剂 总量20%的阻聚剂,混合均匀,在125℃下保温3h;
(2)当检测到树脂酸值达到15mgKOH/g时,加入剩余80%的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
实施例3
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:
环氧树脂12820%,甲基单体甲基丙烯酸27%,丙烯酸13.12wt%,催化剂0.3%,阻聚剂对苯二酚0.08%,交联剂39.5%。
催化剂由以下重量百分比的原料混合制备而成:氯化钴10wt%、氢氧化钠15wt%、乙酰丙酮45wt%、水30wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯15wt%、正丁酯15wt%、甲酯20wt%、甲基丙烯酸丁酸15wt%、羟乙酯35wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入20%的阻聚剂,混合均匀,在125℃下保温3h;
(2)当检测到树脂酸值达到15mgKOH/g时,加入剩余80%的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
实施例4
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:环氧树脂12865%,甲基单体甲基丙烯酸5%,丁烯酸8wt%,催化剂0.1%,阻聚剂甲基对苯二酚0.01%,交联剂21.89%。
催化剂由以下重量百分比的原料混合制备而成:氯化钴10wt%、氢氧化钠15wt%、乙酰丙酮45wt%、水30wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯15wt%、正丁酯15wt%、甲酯20wt%、甲基丙烯酸丁酸15wt%、羟乙酯35wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入20%的阻聚剂,混合均匀,在130℃下保温2h;
(2)当检测到树脂酸值达到15mgKOH/g时,加入剩余80%的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
实施例5
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:环氧树脂12840%,甲基单体甲基丙烯酸20%,反丁烯二酸20wt%,催化剂0.01%,阻聚剂对苯二酚0.08%,交联剂19.91%。
催化剂由以下重量百分比的原料混合制备而成:氯化钴5wt%、氢氧化钠30wt%、乙酰丙酮25wt%、水40wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯15wt%、正丁酯15wt%、甲酯20wt%、甲基丙烯酸丁酸15wt%、羟乙酯35wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入20%的阻聚剂,混合均匀,在125℃下保温3h;
(2)当检测到树脂酸值达到35mgKOH/g时,加入剩余80%的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
实施例6
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:环氧树脂12840%,甲基单体甲基丙烯酸20%,富马酸20wt%,催化剂0.01%,阻聚剂叔丁基对苯二酚0.08%,交联剂19.91%。
催化剂由以下重量百分比的原料混合制备而成:氯化钴20wt%、氢氧化钠10wt%、乙酰丙酮60wt%、水10wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯25wt%、正丁酯20wt%、甲酯20wt%、甲基丙烯酸丁酸15wt%、羟乙酯20wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入20%的阻聚剂,混合均匀,在125℃下保温3h;
(2)当检测到树脂酸值达到15mgKOH/g时,加入剩余80%的阻聚剂,并快 速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
实施例7
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:环氧树脂12840%,甲基单体甲基丙烯酸20%,富马酸20wt%,催化剂0.01%,阻聚剂叔丁基对苯二酚0.08%,交联剂19.91%。
催化剂由以下重量百分比的原料混合制备而成:氯化钴20wt%、氢氧化钠10wt%、乙酰丙酮60wt%、水10wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯18wt%、正丁酯15wt%、甲酯20wt%、甲基丙烯酸丁酸10wt%、羟乙酯37wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入20%的阻聚剂,混合均匀,在125℃下保温3h;
(2)当检测到树脂酸值达到15mgKOH/g时,加入剩余80%的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
实施例8
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:环氧树脂12840%,甲基单体甲基丙烯酸20%,富马酸20wt%,催化剂0.01%,阻聚剂叔丁基对苯二酚0.08%,交联剂19.91%。
催化剂由以下重量百分比的原料混合制备而成:氯化钴10wt%、氢氧化钠15wt%、乙酰丙酮45wt%、水30wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯15wt%、正丁酯15wt%、甲酯20wt%、甲基丙烯酸丁酸15wt%、羟乙酯35wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入占阻聚剂总量60%的阻聚剂,混合均匀,在130℃下保温2h;
(2)当检测到树脂酸值达到15mgKOH/g时,加入剩余40%的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
实施例9
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:酚醛环氧树脂40%,甲基单体甲基丙烯酸20%,富马酸20wt%,催化剂0.01%,阻聚剂叔丁基对苯二酚0.08%,交联剂19.91%。
催化剂由以下重量百分比的原料混合制备而成:氯化钴10wt%、氢氧化钠15wt%、乙酰丙酮45wt%、水30wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯15wt%、正丁酯15wt%、甲酯20wt%、甲基丙烯酸丁酸15wt%、羟乙酯35wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入20%的阻聚剂,混合均匀,在130℃下保温2h;
(2)当检测到树脂酸值达到15mgKOH/g时,加入剩余80%的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
对比例1
一种环保型乙烯基酯树脂,由以下重量百分比的原料混合而成:环氧树脂12840wt%,甲基单体甲基丙烯酸20wt%,富马酸20wt%,催化剂氯化铝0.01wt%,阻聚剂叔丁基对苯二酚0.08wt%,交联剂19.91wt%。
交联剂由以下重量百分比的原料混合制备而成:四聚丙烯15wt%、正丁酯15wt%、甲酯20wt%、甲基丙烯酸丁酸15wt%、羟乙酯35wt%。
其制备方法包括以下步骤:
(1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入占阻聚剂总量20%的阻聚剂,混合均匀,在130℃下保温2h;
(2)当检测到树脂酸值达到15mgKOH/g时,加入剩余80%的阻聚剂,并快速降温;
(3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
对上述实施例和对比例制备得到的树脂进行检测,检测结果如表1所示。
表1
Figure PCTCN2022085330-appb-000001
由表1性能测试数据可知,实施例1-9制备得到的环保型乙烯基酯树脂的断裂延伸率为3.5-5.4%、弯曲强度为117-138MPa、胶凝时间为12-18min,性能优于对比例1。本发明通过以环氧树脂、甲基单体、不饱和酸、催化剂、阻聚剂、交联剂为原料,并限定各原料之间的含量配比,无苯乙烯排放,环境友好;同时得到的树脂交联密度高,具有较高的强度,制品抗冲击性好,可广泛应用于管道成型、管道修复、喷刷施工、高耐腐蚀工程等领域。
以上借助具体实施例对本发明做了进一步描述,但是应该理解的是,这里具体的描述,不应理解为对本发明的实质和范围的限定,本领域内的普通技术人员在阅读本说明书后对上述实施例做出的各种修改,都属于本发明所保护的范围。

Claims (9)

  1. 一种环保型乙烯基酯树脂,其特征在于,由以下重量百分比的原料混合制备而成:环氧树脂20-65wt%,甲基单体5-35wt%,不饱和酸8-25wt%,催化剂0.01-0.3wt%,阻聚剂0.01-0.08wt%,交联剂10-40wt%。
  2. 根据权利要求1所述的环保型乙烯基酯树脂,其特征在于,所述甲基单体为甲基丙烯酸及其衍生物中的一种或几种。
  3. 根据权利要求1所述的环保型乙烯基酯树脂,其特征在于,所述催化剂由以下重量百分比的原料混合制备而成:氯化钴5-20wt%、氢氧化钠10-30wt%、乙酰丙酮20-60wt%、水10-40wt%。
  4. 根据权利要求1所述的环保型乙烯基酯树脂,其特征在于,所述交联剂由四聚丙烯、正丁酯、甲酯、甲基丙烯酸丁酸、羟乙酯复配而成。
  5. 根据权利要求4所述的环保型乙烯基酯树脂,其特征在于,所述交联剂由以下重量百分比的原料混合制备而成:四聚丙烯8-25wt%、正丁酯5-20wt%、甲酯5-20wt%、甲基丙烯酸丁酸3-15wt%、羟乙酯20-37wt%。
  6. 根据权利要求1所述的环保型乙烯基酯树脂,其特征在于,所述不饱和酸为丙烯酸、富马酸、苯二甲酸、丁烯酸、反丁烯二酸中的一种。
  7. 根据权利要求1所述的环保型乙烯基酯树脂,其特征在于,所述阻聚剂为叔丁基对苯二酚、叔丁基邻苯二酚、对苯醌、甲基氢醌、对苯二酚、甲基对苯二酚中的一种或几种。
  8. 根据权利要求1所述的环保型乙烯基酯树脂,其特征在于,所述环氧树脂为环氧树脂128或酚醛环氧树脂。
  9. 根据权利要求1-8任一项所述的环保型乙烯基酯树脂,其特征在于,所述环保型乙烯基酯树脂的制备方法,包括以下步骤:
    (1)将树脂、甲基单体、不饱和酸、催化剂按比例混合,并加入占阻聚剂总量20-60%的阻聚剂,混合均匀,在125-130℃下保温2-3h;
    (2)当检测到树脂酸值达到15-45mgKOH/g时,加入剩余的阻聚剂,并快速降温;
    (3)当降温至60℃以下时,加入交联剂反应,冷却至室温,即得。
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