WO2024067890A1 - 一种再生橡胶材料的功能化改性及其在安全手套中的应用 - Google Patents

一种再生橡胶材料的功能化改性及其在安全手套中的应用 Download PDF

Info

Publication number
WO2024067890A1
WO2024067890A1 PCT/CN2023/132893 CN2023132893W WO2024067890A1 WO 2024067890 A1 WO2024067890 A1 WO 2024067890A1 CN 2023132893 W CN2023132893 W CN 2023132893W WO 2024067890 A1 WO2024067890 A1 WO 2024067890A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
nitrile rubber
recycled
rubber
parts
Prior art date
Application number
PCT/CN2023/132893
Other languages
English (en)
French (fr)
Inventor
张间芳
拉纳辛赫·阿拉奇·唐·塔米拉·迪兰塔·拉纳辛赫
张家地
刘国海
Original Assignee
浙江康隆达特种防护科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江康隆达特种防护科技股份有限公司 filed Critical 浙江康隆达特种防护科技股份有限公司
Publication of WO2024067890A1 publication Critical patent/WO2024067890A1/zh

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02Copolymers with acrylonitrile
    • C08L9/04Latex
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Definitions

  • the invention relates to the technical field of rubber materials, in particular to functional modification of recycled rubber materials and application of the same in safety gloves.
  • nitrile rubber (CABN) has the advantages of good oil resistance and high wear resistance, and has broad application prospects in the fields of safety gloves, protective clothing, protective rubber shoes, etc. Improving the comprehensive properties of nitrile rubber such as mechanics and thermodynamics will help expand the practical application of nitrile rubber in protective products such as gloves; for example, patent CN112812261B prepares nitrile rubber-polyurethane composite gloves, and a layer of cationic weakly acidic water-based polyurethane film with antibacterial effect and conjugated ultraviolet light absorption effect is attached to the outside of the nitrile rubber base film.
  • the gloves obtained have excellent properties such as oil resistance and weather resistance, resistance to bacterial penetration, and air permeability.
  • nitrile rubber with polymer compounds can enhance its mechanical strength, anti-aging and other properties.
  • hyperbranched dendritic polyamide-amine was synthesized and added to nitrile rubber as an antioxidant to improve the mechanical properties and anti-aging properties of nitrile rubber.
  • the present invention aims to synthesize hyperbranched nitrile rubber polyurethane, blend and modify it with nitrile latex and recycled nitrile rubber, improve the mechanical properties and heat resistance of the rubber material, and expand the development and application of nitrile rubber in special protective products such as safety gloves.
  • the present invention provides a functional modification of a recycled rubber material, which is applied in safety gloves to solve the problems of low mechanical properties and low heat resistance of recycled nitrile composite rubber gloves.
  • the present invention provides the following technical solution: a method for functional modification of recycled rubber material, comprising the following steps:
  • S1 100 parts by weight of nitrile latex, 15-35 parts by weight of regenerated nitrile rubber, hyperbranched nitrile rubber-polyurethane, 20-40 parts by weight of dioctyl phthalate are added to an open mill for thin passing, then 0.5-1.2 parts by weight of stearic acid, 0.6-1.5 parts by weight of antioxidant are added, after mixing evenly, 0.5-1 parts by weight of diisopropyl peroxide, 1-2 parts by weight of triallyl isocyanurate are added, thin passing, triangle packing is performed, and then sheeting is obtained to obtain mixed rubber.
  • the amount of the hyperbranched nitrile rubber-polyurethane in S1 is 2-8% by weight of the nitrile latex.
  • the vulcanization conditions in S2 are: vulcanization treatment for 20-40 minutes at a pressure of 8-12 MPa and a vulcanization temperature of 160-180°C.
  • the preparation method of the hyperbranched nitrile rubber-polyurethane comprises the following steps:
  • the molar ratio of diaminoethoxy dipentaerythritol phosphite to 4-chloromethylbenzaldehyde in S3 is 1:2.2-2.8.
  • the amount of glacial acetic acid in S3 is 2-4% of the total weight of the reactants.
  • the solvent in S4 is any one of ethyl acetate, tetrahydrofuran, toluene and xylene.
  • the molar ratio of bis(chloromethylbenzenimide pentaerythritol phosphite) to diethanolamine in S4 is 1:2-2.4.
  • the present invention has the following beneficial technical effects:
  • the tetrahydroxy-functional bis(diethanolaminophenylimine pentaerythritol phosphite) was synthesized by reacting diaminoethoxybispentaerythritol phosphite with 4-chloromethylbenzaldehyde and diethanolamine in sequence.
  • the tetrahydroxy-functional bis(diethanolaminophenylimine pentaerythritol phosphite) was used as a branching chain extender and then subjected to a hyperbranched polymerization reaction with hydroxy-terminated nitrile rubber, polyethylene glycol and 2,4-toluene diisocyanate to synthesize a hyperbranched nitrile rubber-polyurethane containing a bispirocyclic phosphate structure.
  • Hyperbranched nitrile rubber-polyurethane is used as a filling modifier and blended with nitrile rubber and recycled nitrile rubber.
  • the hyperbranched polyurethane has a three-dimensional branched network structure and contains nitrile rubber molecular chains in the main chain, so that the hyperbranched nitrile rubber-polyurethane has good interface compatibility with nitrile rubber and recycled nitrile rubber, and forms a three-dimensional cross-linked network with nitrile rubber and recycled nitrile rubber, thereby improving the tensile strength, tear strength and other mechanical properties of the recycled rubber composite material.
  • Hyperbranched nitrile rubber-polyurethane contains a bispirocyclic phosphate structure with high flame retardancy and high thermal stability, which increases the thermal decomposition temperature and carbon yield of the recycled rubber composite material, exhibits higher heat resistance, and expands the practical application of recycled nitrile rubber composite materials in special protective products such as safety gloves.
  • FIG. 1 is a hydrogen nuclear magnetic spectrum of bis(chloromethylphenylimide pentaerythritol phosphite) of Example 1.
  • FIG. 2 is a hydrogen nuclear magnetic spectrum of bis(diethanolaminophenylimine pentaerythritol phosphite) of Example 1.
  • FIG. 3 is an FT-IR spectrogram of the hyperbranched nitrile rubber-polyurethane of Example 1.
  • Figure 4 is the TG curve of the functionalized modified recycled rubber material.
  • Recycled nitrile rubber brand 012; model 001; Hengshui Dehai Rubber Products Co., Ltd.
  • Hydroxyl-terminated nitrile rubber Model TL50; Jining Tangyi Chemical Co., Ltd.
  • Nitrile latex solid content 44%; viscosity: 4500+2000PCS; Jinan Xinling Chemical Technology Co., Ltd.
  • Polyethylene glycol molecular weight 2000, number: A040538; item number A0405385000; Anhui Zesheng Technology Co., Ltd. Anaiji Chemical.
  • Glacial acetic acid AR, ⁇ 99.5%; Product No. B0200525000; Anhui Zesheng Technology Co., Ltd. Anaiji Chemical.
  • Diaminoethoxy dipentaerythritol phosphite was prepared with reference to the journal "Chemical Intermediates", Issue 03, 2012, Article Number: T1672-8114 (2012) 03-044-05; the document "Synthesis of Diaminoethoxy Dipentaerythritol Phosphite”: 6.8 g of triethyl phosphite, 2.7 g of pentaerythritol and 0.13 g of dibutyltin dilaurate were reacted at 130°C for 3 h, and then the ethanol by-product was removed by vacuum distillation, and then 3.2 g of ethanolamine was added, and the reaction was carried out at 140°C for 3 h. After the reaction, vacuum distillation was carried out to obtain diaminoethoxy dipentaerythritol phosphite.
  • the mixed rubber was vulcanized in a flat vulcanizer at 160° C. under a pressure of 12 MPa for 40 min to obtain a functionally modified recycled rubber material CABN-a.
  • the mixed rubber was vulcanized in a flat vulcanizer at 170° C. under a pressure of 10 MPa for 30 min to obtain a functionally modified recycled rubber material CABN-c.
  • Tensile performance test The functionally modified recycled rubber material was made into a strip specimen of 10 cm ⁇ 3 cm ⁇ 0.5 cm, and the tensile performance was tested by a universal electronic material testing machine at a tensile rate of 10 mm/min.
  • TG performance test The functionalized modified recycled rubber material was made into a square sample of 2cm ⁇ 2cm ⁇ 0.3cm and subjected to TG thermogravimetric analysis by a thermogravimetric analyzer in a nitrogen atmosphere at a heating rate of 10°C/min from 20 room temperature to 800°C.
  • Shore A hardness test The Shore A hardness of the functionalized modified recycled rubber material is measured by a rubber hardness tester. The sample is 5cm ⁇ 2cm ⁇ 0.6cm. The sample is subjected to a force load of 1Kg. The reading begins when the bottom surface of the hardness tester is smoothly combined with the surface of the sample.
  • Tear strength test The tear strength of the functional modified recycled rubber material was measured by a tensile testing machine using the trouser-shaped tear method. The tensile speed of the trouser-shaped specimen was 100 mm/min, and the cutting depth of the specimen was 50 mm.
  • CABN-a, b, and c are the functionalized modified recycled rubber materials prepared in Examples 1-3, respectively;
  • CABN-d is the recycled rubber material prepared in the comparative example.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

本发明涉及橡胶材料技术领域,且公开了一种再生橡胶材料的功能化改性及其在安全手套中的应用,将含有双螺环磷酸酯结构的超支化丁腈橡胶-聚氨酯作为填充改性剂,与丁腈橡胶、再生丁腈橡胶共混改性,超支化聚氨酯具有三维支化网络结构,同时主链中含有丁腈橡胶分子链,与丁腈橡胶和再生丁腈橡胶三者之间有很好的界面相容性,形成三维交联网络,提高了再生橡胶复合材料的拉伸强度、撕裂强度等力学性能;含有高阻燃性和高热稳定性的双螺环磷酸酯结构,提高了再生橡胶复合材料热分解温度、成碳量和耐热性能,拓展了再生丁腈橡胶复合材料在安全手套等特种防护用品中的实际应用。

Description

一种再生橡胶材料的功能化改性及其在安全手套中的应用 技术领域
本发明涉及橡胶材料技术领域,具体为一种再生橡胶材料的功能化改性及其在安全手套中的应用。
背景技术
防护用品如安全防护手套、防护服等广泛应用在医疗卫生、特种工程作业、石油化工作业等领域;丁腈橡胶(CABN)具有耐油性好,耐磨性高等优点,在安全防护手套、防护服、防护胶鞋等领域有着广阔的应用前景,提高丁腈橡胶的力学、热力学等综合性能,有利于拓展丁腈橡胶在手套等防护用品中的实际应用;如专利CN112812261B制备了丁腈橡胶-聚氨酯复合手套,在丁腈橡胶基膜外面附着一层具有抗菌作用和共轭吸收紫外光作用的阳离子型弱酸性水性聚氨酯薄膜,得到的手套耐油耐候性、抗病菌渗透性、透气透湿等性能优良。
采用高分子化合物对丁腈橡胶进行填充改性,可以增强其力学强度、防老化等性能,如《树枝状聚酰胺-胺对丁腈橡胶的防护作用研究》,合成了超支化树枝状聚酰胺-胺,作为防老剂加入丁腈橡胶中,提高了丁腈橡胶的力学性能和防老化等性能;本发明旨在合成超支化丁腈橡胶聚氨酯,与丁腈胶乳、再生丁腈橡胶共混改性,提高橡胶材料的力学性能和耐热等性能,拓展丁腈橡胶在安全手套等特种防护用品中的发展和应用。
发明内容
(一)解决的技术问题
针对现有技术的不足,本发明提供了一种再生橡胶材料的功能化改性,应用安全手套中,解决了再生丁腈复合橡胶手套材料的力学性能较低,耐热性不高的问题。
(二)技术方案
为实现上述目的,本发明提供以下技术方案:一种再生橡胶材料的功能化改性的方法,包括如下步骤:
S1、将100重量份数的丁腈胶乳、15-35重量份数的再生丁腈橡胶、超支化丁腈橡胶-聚氨酯、20-40重量份数的苯二甲酸二辛酯加入到开炼机中进行薄通,然后加入0.5-1.2重量份数的硬脂酸、0.6-1.5重量份数的防老剂,混炼均匀后加入0.5-1重量份数的过氧化二异丙苯、1-2重量份数的三烯丙基异氰脲酸酯,进行薄通、打三角包然后出片得到混炼橡胶。
S2、将混炼橡胶在平板硫化机中进行硫化,得到功能化改性的再生橡胶材料。
优选的,所述S1中超支化丁腈橡胶-聚氨酯的用量为丁腈胶乳重量的2-8%。
优选的,所述S2中硫化条件为在8-12MPa压力下,硫化处理20-40min,硫化温度为160-180℃。
优选的,所述超支化丁腈橡胶-聚氨酯的制备方法包括如下步骤:
S3、向乙醇溶剂中加入二氨乙氧基双亚磷酸季戊四醇酯和4-氯甲基苯甲醛,搅拌溶解后滴加冰醋酸,升温至65-80℃搅拌回流反应6-18h,反应后减压浓缩除去乙醇溶剂,加 入蒸馏水和乙酸乙酯,静置分层并萃取分离,将有机层加入无水硫酸钠干燥,然后过滤并收集滤液,减压浓缩除去乙酸乙酯溶剂,乙醚洗涤后产物后加入到乙酸乙酯中重结晶,得到双(氯甲基苯亚胺亚磷酸季戊四醇酯)。
S4、向溶剂中加入双(氯甲基苯亚胺亚磷酸季戊四醇酯)和二乙醇胺,升温至50-70℃,反应12-24h,反应后减压浓缩除去乙醇溶剂,乙醚洗涤后产物加入到乙醇中重结晶,得到双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯)。
S5、将100重量份数的聚乙二醇真空脱水,然后与60-85重量份数的甲苯2,4-二异氰酸酯、30-55重量份数的端羟基丁腈橡胶溶解到N,N-二甲基甲酰胺中,在N2气氛中滴加0.30.6重量份数的二月桂酸二丁基锡,升温至75-85℃,反应2-3h,然后温度降至50-60℃并加入12-20重量份数的双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯),搅拌反应1-3h,反应后过滤溶剂,依次用蒸馏水、乙醇洗涤产物,得到超支化丁腈橡胶-聚氨酯。
优选的,所述S3中二氨乙氧基双亚磷酸季戊四醇酯和4-氯甲基苯甲醛的物质的量摩尔比例为1∶2.2-2.8。
优选的,所述S3中冰醋酸的用量为反应物总重量的2-4%。
优选的,所述S4中溶剂为乙酸乙酯、四氢呋喃、甲苯、二甲苯中的任一种。
优选的,所述S4中双(氯甲基苯亚胺亚磷酸季戊四醇酯)和二乙醇胺的物质的量摩尔比例为1∶2-2.4。
(三)有益的技术效果
与现有技术相比,本发明具备以下有益技术效果:
将二氨乙氧基双亚磷酸季戊四醇酯依次与4-氯甲基苯甲醛、二乙醇胺进行反应,合成了四羟基官能度的双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯),作为支化扩链剂,与端羟基丁腈橡胶、聚乙二醇和2,4-甲苯二异氰酸酯进行超支化聚合反应,合成了含有双螺环磷酸酯结构的超支化丁腈橡胶-聚氨酯。
将超支化丁腈橡胶-聚氨酯作为填充改性剂,与丁腈橡胶、再生丁腈橡胶共混改性,超支化聚氨酯具有三维支化网络结构,同时主链中含有丁腈橡胶分子链,使得超支化丁腈橡胶-聚氨酯与丁腈橡胶和再生丁腈橡胶三者之间有很好的界面相容性,与丁腈橡胶和再生丁腈橡胶形成三维交联网络,提高了再生橡胶复合材料的拉伸强度、撕裂强度等力学性能。
超支化丁腈橡胶-聚氨酯含有高阻燃性和高热稳定性的双螺环磷酸酯结构,提高了再生橡胶复合材料热分解温度和成碳量,表现出更高的耐热性能,拓展了再生丁腈橡胶复合材料在安全手套等特种防护用品中的实际应用。
附图说明
图1是实施例1双(氯甲基苯亚胺亚磷酸季戊四醇酯)的核磁氢谱。
图2是实施例1双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯)的核磁氢谱。
图3是实施例1超支化丁腈橡胶-聚氨酯的FT-IR谱图。
图4是功能化改性的再生橡胶材料的TG曲线。
具体实施方式
再生丁腈橡胶:牌号012;型号001;衡水德海橡胶制品有限公司。
端羟基丁腈橡胶:型号TL50;济宁棠邑化工有限公司。
丁腈胶乳:固含量44%;粘度:4500+2000PCS;济南新领化工科技有限公司。
聚乙二醇:分子量2000,编号:A040538;货号A0405385000;安徽泽升科技有限公司安耐吉化学。
冰醋酸:AR,≥99.5%;货号B0200525000;安徽泽升科技有限公司安耐吉化学。
二氨乙氧基双亚磷酸季戊四醇酯参照期刊《化工中间体》,2012年第03期,文章编号:T1672-8114(2012)03-044-05;文献《二氨乙氧基双亚磷酸季戊四醇酯的合成》进行制备:将6.8g的亚磷酸三乙酯和2.7g的季戊四醇和0.13g的二月桂酸二丁基锡在130℃中反应3h,然后减压蒸馏除去乙醇副产物,再加入3.2g的乙醇胺,在140℃中反应3h,反应后减压蒸馏,得到二氨乙氧基双亚磷酸季戊四醇酯,
实施例1
(1)向50mL的乙醇溶剂中加入2.5g的二氨乙氧基双亚磷酸季戊四醇酯和3g的4-氯甲基苯甲醛,搅拌溶解后滴加0.18g的冰醋酸,升温至80℃搅拌回流反应18h,反应后减压浓缩除去乙醇溶剂,加入蒸馏水和乙酸乙酯,静置分层并萃取分离,将有机层加入无水硫酸钠干燥,然后过滤并收集滤液,减压浓缩除去乙酸乙酯溶剂,乙醚洗涤后产物后加入到乙酸乙酯中重结晶,得到双(氯甲基苯亚胺亚磷酸季戊四醇酯);
(2)向100mL的四氢呋喃中加入3g的双(氯甲基苯亚胺亚磷酸季戊四醇酯)和1.2g的二乙醇胺,升温至50℃,反应18h,反应后减压浓缩除去乙醇溶剂,乙醚洗涤后产物加入到乙醇中重结晶,得到双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯);
(3)将5g的聚乙二醇真空脱水,然后与3g的甲苯2,4二异氰酸酯、1.5g的端羟基丁腈橡胶溶解到30mL的N,N-二甲基甲酰胺中,在N2气氛中滴加15mg的二月桂酸二丁基锡,升温至85℃,反应2h,然后温度降至50℃并加入0.6g的双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯),搅拌反应3h,反应后过滤溶剂,依次用蒸馏水、乙醇洗涤产物,得到超支化丁腈橡胶-聚氨酯。
(4)将20g的丁腈胶乳、4.5g的再生丁腈橡胶、0.4g的超支化丁腈橡胶聚氨酯、4g的苯二甲酸二辛酯加入到开炼机中进行薄通,然后加入0.1g的硬脂酸、0.2g的防老剂ODA,混炼均匀后加入0.15g的过氧化二异丙苯、0.25g的三烯丙基异氰脲酸酯,进行薄通、打三角包然后出片得到混炼橡胶。
(5)将混炼橡胶在平板硫化机中在12MPa压力下,160℃中硫化处理40min,得到功能化改性的再生橡胶材料CABN-a。
实施例2
(1)向50mL的乙醇溶剂中加入2.5g的二氨乙氧基双亚磷酸季戊四醇酯和3.4g的4-氯甲基苯甲醛,搅拌溶解后滴加0.11g的冰醋酸,升温至65℃搅拌回流反应18h,反应后减压浓缩除去乙醇溶剂,加入蒸馏水和乙酸乙酯,静置分层并萃取分离,将有机层加入无水硫酸钠干燥,然后过滤并收集滤液,减压浓缩除去乙酸乙酯溶剂,乙醚洗涤后产物后加入到乙酸乙酯中重结晶,得到双(氯甲基苯亚胺亚磷酸季戊四醇酯)。
(2)向50mL的乙酸乙酯中加入3g的双(氯甲基苯亚胺亚磷酸季戊四醇酯)和1.3g的二乙醇胺,升温至70℃,反应12h,反应后减压浓缩除去乙醇溶剂,乙醚洗涤后产物加入到乙醇中重结晶,得到双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯)。
(3)将5g的聚乙二醇真空脱水,然后与3.8g的甲苯2,4-二异氰酸酯、2.2g的端羟基丁腈橡胶溶解到80mL的N,N-二甲基甲酰胺中,在N2气氛中滴加25mg的二月桂酸二丁基锡,升温至75℃,反应3h,然后温度降至60℃并加入0.8g的双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯),搅拌反应3h,反应后过滤溶剂,依次用蒸馏水、乙醇洗涤产物,得到超支化丁腈橡胶聚氨酯。
(4)将20g的丁腈胶乳、7g的再生丁腈橡胶、1.2g的超支化丁腈橡胶-聚氨酯、7g的苯二甲酸二辛酯加入到开炼机中进行薄通,然后加入0.24g的硬脂酸、0.3g的防老剂4010NA,混炼均匀后加入0.2g的过氧化二异丙苯、0.2g的三烯丙基异氰脲酸酯,进行薄通、打三角包然后出片得到混炼橡胶。
(5)将混炼橡胶在平板硫化机中在8MPa压力下,180℃中硫化处理20min,得到功能化改性的再生橡胶材料CABN-b。
实施例3
(1)向30mL的乙醇溶剂中加入2.5g的二氨乙氧基双亚磷酸季戊四醇酯和2.7g的4-氯甲基苯甲醛,搅拌溶解后滴加0.11g的冰醋酸,升温至80℃搅拌回流反应18h,反应后减压浓缩除去乙醇溶剂,加入蒸馏水和乙酸乙酯,静置分层并萃取分离,将有机层加入无水硫酸钠干燥,然后过滤并收集滤液,减压浓缩除去乙酸乙酯溶剂,乙醚洗涤后产物后加入到乙酸乙酯中重结晶,得到双(氯甲基苯亚胺亚磷酸季戊四醇酯)。
(2)向50mL的甲苯中加入3g的双(氯甲基苯亚胺亚磷酸季戊四醇酯)和1.1g的二乙醇胺,升温至50℃,反应18h,反应后减压浓缩除去乙醇溶剂,乙醚洗涤后产物加入到乙醇中重结晶,得到双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯)。
(3)将5g的聚乙二醇真空脱水,然后与4.2g的甲苯2,4-二异氰酸酯、2.7g的端羟基丁腈橡胶溶解到80mL的N,N二甲基甲酰胺中,在N2气氛中滴加30mg的二月桂酸二丁基锡,升温至75℃,反应3h,然后温度降至55℃并加入1g的双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯),搅拌反应1h,反应后过滤溶剂,依次用蒸馏水、乙醇洗涤产物,得到超支化丁腈橡胶-聚氨酯。
(4)将20g的丁腈胶乳、6g的再生丁腈橡胶、1.6g的超支化丁腈橡胶-聚氨酯、7.5g的苯二甲酸二辛酯加入到开炼机中进行薄通,然后加入0.1g的硬脂酸、0.25g的防老剂4010NA,混炼均匀后加入0.14g的过氧化二异丙苯、0.32g的三烯丙基异氰脲酸酯,进行薄通、打三角包然后出片得到混炼橡胶。
(5)将混炼橡胶在平板硫化机中在10MPa压力下,170℃中硫化处理30min,得到功能化改性的再生橡胶材料CABN-c。
对比例1
(4)将20g的丁腈胶乳、4.6g的再生丁腈橡胶、5.2g的苯二甲酸二辛酯加入到开炼机中进行薄通,然后加入0.2g的硬脂酸、0.18g的防老剂ODA,混炼均匀后加入0.15g的过氧化二异丙苯、0.27g的三烯丙基异氰脲酸酯,进行薄通、打三角包然后出片得到混炼橡胶。
(2)将混炼橡胶在平板硫化机中在8MPa压力下,180℃中硫化处理20min,得到再生橡胶材料CABN-d。
拉伸性能测试:将功能化改性的再生橡胶材料制成10cm×3cm×0.5cm的条形试样,通过万能电子材料试验机测试拉伸性能,拉伸速率10mm/min。
TG性能测试:将功能化改性的再生橡胶材料制成2cm×2cm×0.3cm的方形试样,通过热重分析仪进行TG热重分析,氮气气氛,以10℃/min的加热速率,20室温升温至800℃。
邵尔A型硬度测试:通过橡胶硬度计测定功能化改性的再生橡胶材料的邵尔A型硬度,试样为5cm×2cm×0.6cm,将试样受到1Kg力负荷,当硬度计的底面与试样表面平稳地结合时开始读数。
撕裂强度测试:通过拉力试验机,采用裤形撕裂法,测定功能化改性的再生橡胶材料的撕裂强度,裤形试样的拉伸速度100mm/min,试样割口深度:50mm。

CABN-a、b、c依次为实施例1-3制备的功能化改性的再生橡胶材料;CABN-d为对比例制备的再生橡胶材料。

Claims (8)

  1. 一种再生橡胶材料的功能化改性的方法,其特征在于:所述再生橡胶材料的功能化改性的方法包括如下步骤:
    S1、将100重量份数的丁腈胶乳、15-35重量份数的再生丁腈橡胶、超支化丁腈橡胶-聚氨酯、20-40重量份数的苯二甲酸二辛酯加入到开炼机中进行薄通,然后加入0.5-1.2重量份数的硬脂酸、0.6-1.5重量份数的防老剂,混炼均匀后加入0.5-1重量份数的过氧化二异丙苯、1-2重量份数的三烯丙基异氰脲酸酯,进行薄通、打三角包然后出片得到混炼橡胶;
    S2、将混炼橡胶在平板硫化机中进行硫化,得到功能化改性的再生橡胶材料。
  2. 根据权利要求1所述的一种再生橡胶材料的功能化改性的方法,其特征在于:所述S1中超支化丁腈橡胶-聚氨酯的用量为丁腈胶乳重量的2-8%。
  3. 根据权利要求1所述的一种再生橡胶材料的功能化改性的方法,其特征在于:所述S2中硫化条件为在8-12MPa压力下,硫化处理20-40min,硫化温度为160-180℃。
  4. 根据权利要求1所述的一种再生橡胶材料的功能化改性的方法,其特征在于:所述超支化丁腈橡胶-聚氨酯的制备方法包括如下步骤:
    S3、向乙醇溶剂中加入二氨乙氧基双亚磷酸季戊四醇酯和4-氯甲基苯甲醛,搅拌溶解后滴加冰醋酸,升温至65-80℃搅拌回流反应6-18h,反应后减压浓缩、萃取分离、洗涤、重结晶,得到双(氯甲基苯亚胺亚磷酸季戊四醇酯);
    S4、向溶剂中加入双(氯甲基苯亚胺亚磷酸季戊四醇酯)和二乙醇胺,升温至50-70℃,反应12-24h,反应后减压浓缩、洗涤、重结晶,得到双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯);
    S5、将100重量份数的聚乙二醇真空脱水,然后与60-85重量份数的甲苯2,4-二异氰酸酯、30-55重量份数的端羟基丁腈橡胶溶解到N,N-二甲基甲酰胺中,在N2气氛中滴加0.3-0.6重量份数的二月桂酸二丁基锡,升温至75-85℃,反应2-3h,然后温度降至50-60℃并加入12-20重量份数的双(二乙醇胺基苯亚胺亚磷酸季戊四醇酯),搅拌反应1-3h,反应后过滤、洗涤产物,得到超支化丁腈橡胶-聚氨酯。
  5. 根据权利要求1所述的一种再生橡胶材料的功能化改性的方法,其特征在于:所述S3中二氨乙氧基双亚磷酸季戊四醇酯和4-氯甲基苯甲醛的物质的量摩尔比例为1∶2.2-2.8。
  6. 根据权利要求1所述的一种再生橡胶材料的功能化改性的方法,其特征在于:所述S3中冰醋酸的用量为反应物总重量的2-4%。
  7. 根据权利要求1所述的一种再生橡胶材料的功能化改性的方法,其特征在于:所述S4中溶剂为乙酸乙酯、四氢呋喃、甲苯、二甲苯中的任一种。
  8. 根据权利要求1所述的一种再生橡胶材料的功能化改性的方法,其特征在于:所述S4中双(氯甲基苯亚胺亚磷酸季戊四醇酯)和二乙醇胺的物质的量摩尔比例为1∶2-2.4。
PCT/CN2023/132893 2022-09-27 2023-11-21 一种再生橡胶材料的功能化改性及其在安全手套中的应用 WO2024067890A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211187009.9 2022-09-27
CN202211187009.9A CN115521517B (zh) 2022-09-27 2022-09-27 一种再生橡胶材料的功能化改性及其在安全手套中的应用

Publications (1)

Publication Number Publication Date
WO2024067890A1 true WO2024067890A1 (zh) 2024-04-04

Family

ID=84700392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/132893 WO2024067890A1 (zh) 2022-09-27 2023-11-21 一种再生橡胶材料的功能化改性及其在安全手套中的应用

Country Status (2)

Country Link
CN (1) CN115521517B (zh)
WO (1) WO2024067890A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118440415A (zh) * 2024-07-08 2024-08-06 安徽可富新材料科技有限公司 一种阻燃丁苯橡胶的制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115521517B (zh) * 2022-09-27 2023-09-08 浙江康隆达特种防护科技股份有限公司 一种再生橡胶材料的功能化改性及其在安全手套中的应用

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6251994B1 (en) * 1999-02-18 2001-06-26 Bridgestone Corporation Elastomeric compositions for damping
JP2007031507A (ja) * 2005-07-25 2007-02-08 Nof Corp 架橋ゴムの製造方法
CN102731864A (zh) * 2012-05-30 2012-10-17 芜湖荣基密封系统有限公司 一种丁腈再生橡胶密封圈材料
CN104650415A (zh) * 2015-02-09 2015-05-27 安徽中鼎密封件股份有限公司 一种耐高温丁腈橡胶材料
CN105542174A (zh) * 2016-01-13 2016-05-04 广东工业大学 一种有机硅改性超支化聚氨酯及其制备方法与应用
CN106977681A (zh) * 2017-04-07 2017-07-25 北京理工大学 一种超支化共混硬段改性后扩链阻燃水性聚氨酯
US20180312671A1 (en) * 2015-04-28 2018-11-01 Avent, Inc. Nitrile Rubber Glove with Stretch Modifier
CN111333929A (zh) * 2020-03-25 2020-06-26 同曦集团有限公司 一种主动抗菌抗病毒手套及其制备方法
CN111333883A (zh) * 2020-03-19 2020-06-26 安徽攀望科技有限公司 一种防刺穿带电作业用手套的制备方法
CN114805966A (zh) * 2022-05-23 2022-07-29 安徽英科医疗用品有限公司 一种防破损手术用薄型丁腈手套材料
CN115521517A (zh) * 2022-09-27 2022-12-27 浙江康隆达特种防护科技股份有限公司 一种再生橡胶材料的功能化改性及其在安全手套中的应用

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1903545A (zh) * 2006-08-03 2007-01-31 天津市格林科特高分子材料技术有限公司 一种功能性丁腈橡胶手套的制造方法
CN100513118C (zh) * 2006-12-15 2009-07-15 天津市格林科特高分子材料技术有限公司 一次性丁腈橡胶-聚氨酯复合手套的制造方法及其用途
CN112812261B (zh) * 2020-12-30 2022-08-19 广东金发科技有限公司 一种水性聚氨酯乳液、丁腈橡胶-聚氨酯复合手套及其制备方法
CN112794972A (zh) * 2020-12-30 2021-05-14 广东金发科技有限公司 一种水性聚氨酯乳液、丁腈胶-聚氨酯复合乳液及其应用

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6251994B1 (en) * 1999-02-18 2001-06-26 Bridgestone Corporation Elastomeric compositions for damping
JP2007031507A (ja) * 2005-07-25 2007-02-08 Nof Corp 架橋ゴムの製造方法
CN102731864A (zh) * 2012-05-30 2012-10-17 芜湖荣基密封系统有限公司 一种丁腈再生橡胶密封圈材料
CN104650415A (zh) * 2015-02-09 2015-05-27 安徽中鼎密封件股份有限公司 一种耐高温丁腈橡胶材料
US20180312671A1 (en) * 2015-04-28 2018-11-01 Avent, Inc. Nitrile Rubber Glove with Stretch Modifier
CN105542174A (zh) * 2016-01-13 2016-05-04 广东工业大学 一种有机硅改性超支化聚氨酯及其制备方法与应用
CN106977681A (zh) * 2017-04-07 2017-07-25 北京理工大学 一种超支化共混硬段改性后扩链阻燃水性聚氨酯
CN111333883A (zh) * 2020-03-19 2020-06-26 安徽攀望科技有限公司 一种防刺穿带电作业用手套的制备方法
CN111333929A (zh) * 2020-03-25 2020-06-26 同曦集团有限公司 一种主动抗菌抗病毒手套及其制备方法
CN114805966A (zh) * 2022-05-23 2022-07-29 安徽英科医疗用品有限公司 一种防破损手术用薄型丁腈手套材料
CN115521517A (zh) * 2022-09-27 2022-12-27 浙江康隆达特种防护科技股份有限公司 一种再生橡胶材料的功能化改性及其在安全手套中的应用

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ZHANG XIN: "Study on the Application of Reclaimed NBR", CHINA RESOURCES COMPREHENSIVE UTILIZATION, vol. 29, no. 7, 25 July 2011 (2011-07-25), pages 28 - 30, XP093154845 *
王亚平等 (WANG, YAPING ET AL.): "丁腈橡胶/聚氨酯复合材料用相容剂的合成及复合材料的性能研究 (Synthesis of Compatibilizers for NBR/PU Composites and Properties of Composites)", 橡胶工业 (CHINA RUBBER INDUSTRY), vol. 70, no. 06, 30 June 2023 (2023-06-30), ISSN: 1000-890X *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118440415A (zh) * 2024-07-08 2024-08-06 安徽可富新材料科技有限公司 一种阻燃丁苯橡胶的制备方法

Also Published As

Publication number Publication date
CN115521517A (zh) 2022-12-27
CN115521517B (zh) 2023-09-08

Similar Documents

Publication Publication Date Title
WO2024067890A1 (zh) 一种再生橡胶材料的功能化改性及其在安全手套中的应用
Najafi et al. Internally plasticized PVC by four different green plasticizer compounds
CN110330638B (zh) 一种端环氧基超支化聚合物、制备方法及应用
US8629213B2 (en) Composition including a mixture of elastomer and supramolecular polymer
Che et al. Preparation of nano-TiO2/polyurethane emulsions via in situ RAFT polymerization
Du et al. Dynamic cross-linked polyurethane hot-melt adhesive with high biomass content and high adhesive strength simultaneously
Athawale et al. Interpenetrating polymer networks based on polyol modified castor oil polyurethane and polymethyl methacrylate
CN109384983A (zh) 一种航空用耐油耐高低温橡胶及其制备方法
Wang et al. A new curing agent for self-curable system of aqueous-based PU dispersion
CN104845011A (zh) 一种eva发泡组合物及用其制备发泡材料的方法
CN110204681A (zh) 硬段含咪唑烷基脲的自愈合、荧光聚氨酯薄膜的制备方法
CN108178730A (zh) 邻苯二酚衍生物及其仿生聚合物的合成与应用
CN106118443A (zh) 一种耐候型水性聚酯涂料及其制备方法
CN106085195A (zh) 一种无机阻燃水性聚酯涂料及其制备方法
Li et al. Synthesis of cationic waterborne polyurethane via thiol-ene click reaction and catechol chemistry to improve the performance of soybean meal adhesives
Yang et al. Robust and rapid responsive organic-inorganic hybrid bilayer hydrogel actuators with silicon nanoparticles as the cross-linker
CN104211902A (zh) 水性聚氨酯乳液的制备方法及其制得的水性聚氨酯乳液
Li et al. Amphoteric waterborne polyurethane with unsaturated carboxyl group as crosslinker to improve cohesive strength of soybean protein-based adhesive for excellent cold-pressing adhesion
CN113136017B (zh) 一种具有pH响应与自愈合性能的聚氨酯及其制备方法
CN115746539B (zh) 一种pvc/tpu共混材料体系组合物
Feng et al. Wholly sustainable graft copolymers derived from cellulose, lignin, and hemicellulose for high-performance elastomers, adhesives, and UV-blocking materials
CN106085193A (zh) 一种树脂基水性聚酯涂料及其制备方法
US11578143B2 (en) Crosslinked rubber composition and production method therefor
CN114752158A (zh) 一种反光汽车改色膜及其制备方法
CN105969165A (zh) 一种抗冲击水性聚酯涂料及其制备方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 18699855

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23871114

Country of ref document: EP

Kind code of ref document: A1