CN106700011A - 一种初期粘接力强的聚氨酯热熔胶的制备和使用方法 - Google Patents
一种初期粘接力强的聚氨酯热熔胶的制备和使用方法 Download PDFInfo
- Publication number
- CN106700011A CN106700011A CN201710071645.8A CN201710071645A CN106700011A CN 106700011 A CN106700011 A CN 106700011A CN 201710071645 A CN201710071645 A CN 201710071645A CN 106700011 A CN106700011 A CN 106700011A
- Authority
- CN
- China
- Prior art keywords
- hot melt
- preparation
- parts
- polyurethane hot
- reaction
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000004814 polyurethane Substances 0.000 title claims abstract description 27
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000004831 Hot glue Substances 0.000 title abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000004026 adhesive bonding Methods 0.000 claims description 12
- 239000012943 hotmelt Substances 0.000 claims description 11
- 150000001412 amines Chemical class 0.000 claims description 10
- 239000012948 isocyanate Substances 0.000 claims description 9
- 150000002513 isocyanates Chemical class 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 229920001451 polypropylene glycol Polymers 0.000 claims description 6
- 150000005846 sugar alcohols Polymers 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 2
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 2
- 238000005984 hydrogenation reaction Methods 0.000 claims description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 claims 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 claims 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 abstract description 2
- 238000001723 curing Methods 0.000 abstract 2
- 238000013008 moisture curing Methods 0.000 abstract 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 6
- 208000005156 Dehydration Diseases 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000006757 chemical reactions by type Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000002028 premature Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2170/00—Compositions for adhesives
- C08G2170/20—Compositions for hot melt adhesives
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
本发明涉及一种初期粘接力强的聚氨酯热熔胶的制备和使用方法,能解决现市场使用的湿气固化聚氨酯热熔胶初期黏力不够的问题,通过在传统湿气固化聚氨酯热熔胶中加入一种潜固化剂,产生与聚氨酯中的异氰酸酯基团反应的活性氢基,让其迅速形成早期固化大幅提升热熔胶使用过程中早期的接着力,适用于热熔胶生产领域。
Description
技术领域
本发明涉及聚氨酯热熔胶的制备领域,更具体的,是一种初期粘接力强的聚氨酯热熔胶的制备和使用方法。
背景技术
热熔胶是一种重要的粘合剂,在常温下为固体,被加热到一定温度下可以流动,形成具有一定黏性的液体,用于生产生活中对物体的黏合,具有容易保存,无毒无污染等优点。
现市场使用的湿气固化的反应型聚氨酯(PUR)一般为单一的湿气固化形式,其缺陷比较明显,产品初期粘接力主要是通过物理冷却固化,造成初黏力不高,容易造成被粘接物位移或翘边。或者需要长时间保持压住被粘接物品,造成产品大量积压和工具大批浪费。
市面上有出现含有光固化型湿气反应型聚氨酯胶黏剂,该产品可以解决上述问题,但要求接着材料必须有一面是透明材料,才能形成早期固化。
发明内容
为了解决上述问题,实现聚氨酯胶在普通粘着材料上形成早期固化,本发明提出一种初期粘接力强的聚氨酯热熔胶的制备和使用方法的制备和使用方法,能在初期具有强粘接力,并且在后期实现湿气固化。其具体技术方案如下:
一种初期粘接力强的聚氨酯热熔胶的制备和使用方法,按质量份计,包括多元醇60-85份、多元异氰酸酯10-30份、潜固化剂3-16份,制备方法如下:
步骤一、将多元醇70-85份加入反应釜中,脱水1-2小时,反应温度100-120℃,反应压强为-0.0950至 -0.0850MPa,脱水完毕后,降温至80℃以下;
步骤二、将多元异氰酸酯10-20份加入步反应釜中,充氮气或抽真空反应1.5-2.5小时,反应温度90-100℃,反应完成后降温至90℃以下;
步骤三、将潜固化剂3-16份加入反应釜中,搅拌20-50分钟,然后脱泡出料,密封保存。
进一步地,多元醇包括分子量为2000并且官能度为2的聚丙二醇、分子量为3000的聚己二酸丁二醇中的一种或混合。
进一步地,多元异氰酸酯为二苯基甲烷二异氰酸酯、甲苯二异氰酸酯、六亚甲基二异氰酸酯、氢化苯基甲烷二异氰酸酯、异佛尔酮二异氰酸酯中的一种。
进一步地,潜固化剂为封闭胺。
进一步地,按本发明中的工艺方法生产的热熔胶使用方法:在上胶使用时,上胶温度为80℃,上胶后表面温度加热到120℃到200℃,微压1分钟,自然冷却。
本发明的有益效果:在反应型聚氨酯热熔胶生产过程中加入封闭胺,封闭胺能在一定温度下迅速释放含有能与湿气固化型聚氨酯中的异氰酸酯基团反应的活性氢基,让其迅速形成早期固化,以大幅提高早期的接着力。
具体实施方式
为能进一步了解本发明的特征、技术手段以及所达到的具体目的、功能,下面结合实施例对本发明作进一步详细描述。
实施例1
将40份聚丙二醇以及40份聚己二酸丁二醇加入反应釜内,110℃,-0.095MPa真空脱水1hr。冷却至80℃以下,加二苯基甲烷二异氰酸酯,13.04份,90-100℃反应2hr,反应过程抽真空保护,降温至80℃,加封闭胺4.8份,搅拌30min,控温在80℃以下,脱泡,出胶,密封包装。
实施例2
将40份聚丙二醇以及40份聚己二酸丁二醇加入反应釜内,110℃,-0.095MPa真空脱水1hr。冷却至80℃以下,加二苯基甲烷二异氰酸酯,13.04份,90-100℃反应2hr,反应过程抽真空保护,降温至80℃,加封闭胺6.4份,搅拌30min,控温在80℃以下,脱泡,出胶,密封包装。
实施例3
将40份聚丙二醇以及40份聚己二酸丁二醇加入反应釜内,110℃,-0.095MPa真空脱水1hr。冷却至80℃以下,加二苯基甲烷二异氰酸酯,13.04份,90-100℃反应2hr,反应过程抽真空保护,降温至80℃,加封闭胺8份,搅拌30min,控温在80℃以下,脱泡,出胶,密封包装。
对比例
将40份聚丙二醇以及40份聚己二酸丁二醇加入反应釜内,110℃,-0.095MPa真空脱水1hr。冷却至80℃以下,加二苯基甲烷二异氰酸酯,13.04份,90-100℃反应2hr,反应过程抽真空保护,降温至80℃,真空脱泡,密闭包装。
下面对各实施例的成品进行效果测试。
下表的数据来自各成品对铝材粘CPU进行GB 2791-81粘接试验。
上胶温度80℃,测试温度25℃,上胶冷却后,1min左右测试,作为剥离强度1。
上胶温度80℃,上胶后表面加温至135℃,微压1min,冷却后,1min左右测试,作为剥离强度2。
上胶温度80℃,上胶后表面加温至135℃,微压1min,冷却后,室温成熟24hr,测试,作为剥离强度3。
从表中可以看出采用本发明的制作方法和使用方法使得聚氨酯热熔胶相比原有技术即对比例,有了非常大的提升,。
不同实施例下的聚氨酯热熔胶剥离强度对比表
测试标准GB 2791-81,单位N/mm | 剥离强度1 | 剥离强度2 | 剥离强度3 |
实施例1 | 0.2049 | 0.8674 | 2.8595 |
实施例2 | 0.2207 | 1.2120 | 3.0172 |
实施例3 | 0.2450 | 1.4896 | 3.0576 |
对比样 | 0.1960 | 0.3038 | 2.8518 |
分析上表数据可知:
加入了封闭胺的实施例产品比没加入封闭胺实施例产品的初期剥离强度要大。加热温度达到135℃时,其初期的粘接力为佳。
加入了封闭胺可以加快前期固化的进程。
以上所述实施例仅表达了本发明的实施方式,其描述较为具体和详细,但并不能因此而理解为对本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (5)
1.一种初期粘接力强的聚氨酯热熔胶的制备和使用方法,其特征在于,按质量份计,包括多元醇60-85份、多元异氰酸酯10-30份、潜固化剂3-16份,制备方法如下:
步骤一、将多元醇70-85份加入反应釜中,脱水1-2小时,反应温度100-120℃,反应压强为-0.0950至 -0.0850MPa,脱水完毕后,降温至80℃以下;
步骤二、将多元异氰酸酯10-20份加入反应釜中,充氮气或抽真空反应1.5-2.5小时,反应温度90-100℃,反应完成后降温至90℃以下;
步骤三、将潜固化剂3-16份加入反应釜中,搅拌20-50分钟,然后脱泡出料,密封保存。
2.根据权利要求1中的一种初期粘接力强的聚氨酯热熔胶的制备和使用方法,其特征在于,所述多元醇包括分子量为2000并且官能度为2的聚丙二醇、分子量为3000的聚己二酸丁二醇中的一种或混合。
3.根据权利要求1中的一种初期粘接力强的聚氨酯热熔胶的制备和使用方法,其特征在于,所述多元异氰酸酯为二苯基甲烷二异氰酸酯、甲苯二异氰酸酯、六亚甲基二异氰酸酯、氢化苯基甲烷二异氰酸酯、异佛尔酮二异氰酸酯中的一种。
4.根据权利要求1中的一种初期粘接力强的聚氨酯热熔胶的制备和使用方法,其特征在于,所述潜固化剂为封闭胺。
5.根据权利要求1至4中任一权利要求中所述一种初期粘接力强的聚氨酯热熔胶的制备和使用方法,其特征在于,按本发明中的工艺方法生产的热熔胶使用方法:在上胶使用时,上胶温度为80℃,上胶后表面温度加热到120℃到200℃,微压1分钟,自然冷却。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710071645.8A CN106700011A (zh) | 2017-02-09 | 2017-02-09 | 一种初期粘接力强的聚氨酯热熔胶的制备和使用方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710071645.8A CN106700011A (zh) | 2017-02-09 | 2017-02-09 | 一种初期粘接力强的聚氨酯热熔胶的制备和使用方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106700011A true CN106700011A (zh) | 2017-05-24 |
Family
ID=58910399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710071645.8A Pending CN106700011A (zh) | 2017-02-09 | 2017-02-09 | 一种初期粘接力强的聚氨酯热熔胶的制备和使用方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106700011A (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4182898A (en) * | 1978-01-20 | 1980-01-08 | Anderson Development Company | Stable and storable polyester-polyether co-prepolymers |
US6011106A (en) * | 1997-09-29 | 2000-01-04 | Rohm And Haas Company | High-build low-sag aqueous coating composition |
CN101541908A (zh) * | 2006-11-17 | 2009-09-23 | Sika技术股份公司 | 包含聚醛缩亚胺的湿固化性热熔胶组合物 |
CN101687775A (zh) * | 2007-07-16 | 2010-03-31 | Sika技术股份公司 | 醛亚胺以及包含醛亚胺的组合物 |
-
2017
- 2017-02-09 CN CN201710071645.8A patent/CN106700011A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4182898A (en) * | 1978-01-20 | 1980-01-08 | Anderson Development Company | Stable and storable polyester-polyether co-prepolymers |
US6011106A (en) * | 1997-09-29 | 2000-01-04 | Rohm And Haas Company | High-build low-sag aqueous coating composition |
CN101541908A (zh) * | 2006-11-17 | 2009-09-23 | Sika技术股份公司 | 包含聚醛缩亚胺的湿固化性热熔胶组合物 |
CN101687775A (zh) * | 2007-07-16 | 2010-03-31 | Sika技术股份公司 | 醛亚胺以及包含醛亚胺的组合物 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103289631B (zh) | 一种反应型聚氨酯热熔胶组合物的制备方法及其应用 | |
CN104745138B (zh) | 一种双组分聚氨酯胶粘剂及制备方法 | |
EP2944662B1 (en) | Thermoplastic polyurethane hot melt adhesive | |
CN105176474B (zh) | 一种适用于湿面裂缝的道路灌缝胶及其制备方法 | |
CN109666441B (zh) | 一种单组份反应型聚氨酯热熔胶及其制备方法 | |
CN105295815A (zh) | 一种反光面料用反应型聚氨酯热熔胶及其制备方法 | |
CN105602514A (zh) | 一种双组份高触变性的聚氨酯胶粘剂 | |
CN108329883A (zh) | 快干型无溶剂类聚氨酯胶粘剂及其制备方法 | |
CN107987779A (zh) | 一种反应型聚氨酯热熔胶及其制备方法和应用 | |
CN103305174B (zh) | 一种光/湿双固化聚氨酯热熔胶的制备方法 | |
CN108251039A (zh) | 一种高透湿功能面料用反应型聚氨酯热熔胶及其制备方法 | |
US20170058163A1 (en) | Thermoplastic Polyurethane Hot Melt Adhesive | |
CN109651998A (zh) | 一种低粘度单组分无溶剂聚氨酯胶粘剂及其制备方法和应用 | |
KR20230152784A (ko) | 폴리우레탄-기반 결합제 시스템 | |
CN107142069A (zh) | 一种无咋轨道混凝土伸缩缝用可单双组分两用施工型聚氨酯灌缝胶及其制备方法 | |
CN108034352A (zh) | 适用于pc建筑的改性硅酮密封胶用底涂剂及其制备方法 | |
CN104371633B (zh) | 一种双组份无溶剂聚氨酯食品薄膜粘胶剂及其制备方法和使用方法 | |
CN108084946A (zh) | 一种湿固化聚氨酯热熔胶及其制备方法 | |
CN109401719A (zh) | 一种双固化聚氨酯热熔胶及其制备方法和使用方法 | |
CN105086914A (zh) | 一种适用于金属粘接的单组份聚氨酯密封胶及制备方法 | |
CN109370503A (zh) | 一种聚碳酸酯型双固化聚氨酯热熔胶及其制备方法 | |
CN103740316A (zh) | 车灯用湿固化聚氨酯热熔胶及其制备方法 | |
CN105017503A (zh) | 一种反应型聚氨酯热熔胶预聚物的合成方法 | |
CN108728032A (zh) | 一种水性聚氨酯胶粘剂及其制备方法、在食品塑料软包装上的应用 | |
CN109111892A (zh) | 一种快干型双组份无溶剂聚氨酯复合胶粘剂及其制备方法和应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
|
RJ01 | Rejection of invention patent application after publication |