CN116925316B - 一种聚氨酯声学材料、制备方法及其用途 - Google Patents
一种聚氨酯声学材料、制备方法及其用途 Download PDFInfo
- Publication number
- CN116925316B CN116925316B CN202311187994.8A CN202311187994A CN116925316B CN 116925316 B CN116925316 B CN 116925316B CN 202311187994 A CN202311187994 A CN 202311187994A CN 116925316 B CN116925316 B CN 116925316B
- Authority
- CN
- China
- Prior art keywords
- parts
- catalyst
- component
- polyether polyol
- polyurethane
- 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.)
- Active
Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 38
- 239000004814 polyurethane Substances 0.000 title claims abstract description 38
- 239000012814 acoustic material Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title description 7
- 239000000463 material Substances 0.000 claims abstract description 58
- 239000003054 catalyst Substances 0.000 claims abstract description 35
- 229920005862 polyol Polymers 0.000 claims abstract description 30
- 150000003077 polyols Chemical class 0.000 claims abstract description 30
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 26
- 229920000570 polyether Polymers 0.000 claims abstract description 26
- 239000004094 surface-active agent Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 229920001400 block copolymer Polymers 0.000 claims description 2
- 239000012972 dimethylethanolamine Substances 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 22
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- -1 polymethylene Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004970 Chain extender Substances 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- YUFFSWGQGVEMMI-JLNKQSITSA-N (7Z,10Z,13Z,16Z,19Z)-docosapentaenoic acid Chemical compound CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCCCCC(O)=O YUFFSWGQGVEMMI-JLNKQSITSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229920000891 common polymer Polymers 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000012970 tertiary amine catalyst 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3275—Hydroxyamines 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
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more polyetherpolyols having at least three 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
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
-
- 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
- C08G2101/00—Manufacture of cellular products
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
-
- 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
- C08G2350/00—Acoustic or vibration damping material
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
本发明涉及一种聚氨酯声学材料,主要解决现有技术中存在聚氨酯材料低频时吸声系数不够高、熟化脱模时间不够快的技术问题。本发明通过采用一种新的聚氨酯声学材料,所述的聚氨酯声学材料的反应原料由组分A和组分B组成,组分A与组分B的重量比为100:60~70;其中,以重量份数计,组分A包括:聚醚多元醇Ⅰ:41~70份,聚醚多元醇Ⅱ:20~50份,交联剂:0.2~0.9份,表面活性剂:0.2~0.45份,催化剂Ⅰ:0.3~0.8份,催化剂Ⅱ:0.3~0.8份,催化剂Ⅲ:0.05~0.5份,水:3.8~4.8份,色浆:0~1份;组分B为改性MDI的技术方案,较好地解决了该问题,可在新能源电动车的驱动电机包裹中应用。
Description
技术领域
本发明涉及一种聚氨酯声学材料、制备方法及其用途。
背景技术
随着汽车技术的日渐成熟,汽车自身机械性能和舒适性能成为衡量汽车品质的重要标准,噪声是其中之一。
动力总成噪声是汽车的主要噪声源之一,尤其是在新能源汽车更为显著,主要体现在车辆急加速和滑行过程中。由于新能源汽车驱动电机在急加速中,输出扭矩往往是最大扭矩,且当车速升高,驱动电机的高频噪音成为动力总成噪音的主要成分;当新能源汽车在滑行过程中,减速器齿轮的啮合噪声也成为动力总成噪音的主要成分。
为了减少驱动电机的噪声,现有技术中将EVA包裹内层聚氨酯发泡材料,聚氨酯发泡材料与驱动电机外型面贴合,制成驱动电机隔音罩,以用来降低驱动电机产生的噪声。而上述结构中,起到主要吸音功能的则是聚氨酯发泡材料。
一般评价材料吸音性能优劣的主要指标是吸声系数,多数材料都有一定的吸声能力,普通材料的吸声系数在0.1之间,吸声系数大于0.2的材料为吸声材料,大于0.5的材料为比较好的吸声材料,吸声系数0.7以上为具有优异的吸声性能。聚氨酯作为多孔吸声材料具有比重小、在高频率时材料的吸声系数大、加工性能强等优点,但在低频时材料的吸声系数较低。
中国专利CN 111253548A 公开了一种车用吸音聚氨酯硬泡组合物,由A,B两组分组成,按照重量份数计包括:A组分原料:聚醚多元醇A 40~60份;聚酯多元醇 15~25份;聚醚多元醇B 10~20份;扩链剂2~7份;表面活性剂 0.8~3.0份;催化剂 0.5~1.5份;水2.0~4.0份;B组分原料多亚甲基多苯基多异氰酸酯。该发明提供的是一种硬质泡沫聚氨酯组合物,在包裹电机时,不具有软泡聚氨酯的服帖性能。
中国专利 CN116333259A 公开了一种吸音聚氨酯材料,主要解决现有技术中聚氨酯泡沫吸音、降噪效果差的问题。该发明的吸音聚氨酯材料,由组分A和组分B发泡制备而成,组分A与组分B的重量份数比为100:55~80,其中,组分A以重量份数计包括:聚醚多元醇Ⅰ20~40份,聚醚多元醇Ⅱ30~50份,聚合物多元醇5~10份,扩链剂与交联剂总量为2~10份,催化剂1~2份,表面活性剂0.5~1.5份,开孔剂1~5份,水2~4份;组分B为改性MDI。该发明制备得到的吸声系数最高为0.91。该专利中的合模熟化时间为5min;且低频时的吸声系数有待提高。
发明内容
本发明所要解决的技术问题之一是,现有技术中存在聚氨酯材料低频时吸声系数不够高、熟化脱模时间不够快的技术问题,提供一种新的聚氨酯声学材料,该聚氨酯声学材料具有吸声系数高、脱模时间短,提高工作效率的优点。本发明所要解决的技术问题之二是,提供了一种与解决技术问题之一相对应的聚氨酯声学材料的制备方法。本发明所要解决的技术问题之三是提供了一种与解决技术问题之一相对应的聚氨酯声学材料的应用。
为解决上述技术问题之一,本发明采用的技术方案如下:一种聚氨酯声学材料,其特征在于,所述的聚氨酯声学材料的反应原料由组分A和组分B组成,组分A与组分B的重量比为100:60~70;其中,以重量份数计,组分A包括:聚醚多元醇Ⅰ:41~70份,聚醚多元醇Ⅱ:20~50份,交联剂:0.2~0.9份,表面活性剂:0.2~0.45份,催化剂Ⅰ:0.3~0.8份,催化剂Ⅱ:0.3~0.8份,催化剂Ⅲ:0.05~0.5份,水:3.8~4.8份,色浆:0~1份;组分B为改性MDI。
上述技术方案中,优选地,所述的聚醚多元醇Ⅰ的官能度为3~4,羟值为25~30mgKOH/g;环氧乙烷含量15%~30%;聚醚多元醇Ⅱ的官能度为3~4,羟值为31~35mgKOH/g;环氧乙烷含量60%~75%。
上述技术方案中,优选地,所述的交联剂选自官能度为3~4的醇类化合物或醇胺类化合物中的至少一种。
上述技术方案中,优选地,所述的催化剂Ⅰ为凝胶型叔胺类催化剂;催化剂Ⅱ为平衡型催化剂;催化剂Ⅲ为反应型胺类催化剂。
上述技术方案中,优选地,所述的催化剂Ⅰ选自PC-15或Z-130中的至少一种;催化剂Ⅱ选自DPA、DMEA或NE-1082中的至少一种;催化剂Ⅲ选自ZF-10或NE-300中的至少一种。
上述技术方案中,优选地,所述的表面活性剂为聚硅氧烷-氧化烯烃嵌段共聚物;所述的交联剂选自甘油、二乙醇胺或三乙醇胺中的至少一种。
上述技术方案中,优选地,所述的表面活性剂选自B8715、B8734、B8742、B8738、L-3627或L-3628中的至少一种。
上述技术方案中,优选地,所述的改性MDI选自Wannate 8018 或CNI-1800中的至少一种。
为解决上述技术问题之二,本发明采用的技术方案如下:
一种前述的聚氨酯声学材料的制备方法包括以下步骤:
(1)制备组分A:以重量份数计,在容器A中依次加入聚醚多元醇Ⅰ:41~70份,聚醚多元醇Ⅱ:20~50份,交联剂:0.2~0.9份,表面活性剂:0.2~0.45份,催化剂Ⅰ:0.3~0.8份,催化剂Ⅱ:0.3~0.8份,催化剂Ⅲ:0.05~0.5份,水:3.8~4.8份,色浆:0~1份;在20~25℃下搅拌均匀,得到物料Ⅰ;
(2)制备组分B:在容器B中加入改性MDI,在20~25℃下储存待用,得到物料Ⅱ;
(3)将物料Ⅰ和物料Ⅱ分别抽入料罐A、料罐B中,分别开启高压循环;在高压机上设定好物料Ⅰ与物料Ⅱ重量比为100:60~70,通过高压机将物料Ⅰ和物料Ⅱ高速混合搅拌后,迅速注入模具中,模具温度设定为50~65℃,注料完毕后,合模熟化2~2.5min,开模得到聚氨酯声学材料。
为解决上述技术问题之三,本发明采用的技术方案如下:
一种前述的聚氨酯声学材料在新能源电动车的驱动电机包裹中应用。
本发明提供了一种聚氨酯声学材料、制备方法及其用途,通过组分A和组分B配方的合理设计,组分中不添加常用的聚合物多元醇,有效降低了材料的气味;本发明中采用三种催化剂联用,有效提高了材料的熟化脱模时间(150s以内),提高了生产效率;通过催化剂、硅油、水分、聚醚多元醇、B组分的成分的合理选择、相互之间的协同作用,使制备得到的聚氨酯声学材料具有优异的透气率(25L/min),在不需要开孔剂的前提下,也能拥有优异的吸声效果,特别是低频率(1000HZ)时,吸声系数能达到0.7,高频率4000HZ时,吸声系数能达到0.96,取得了较好地技术效果。
本发明聚氨酯声学材料所用到的测试标准或方法如下:
密度测试标准为:ASTM D3574-2017;
拉伸强度:ASTM D3574-2017;
撕裂强度:ASTM D3574-2017;
40%压缩强度:ISO 3386-1-1997;
透气率:ASTM-D3574;
气味等级:VDA 270-2018;
吸声系数:GB/T 18696.2-2002;
断裂伸长率:ASTM D3574-2017。
具体实施方式
下面结合实施例对本发明做进一步详细的描述,但不限于本实施例。
表1 原料清单
【实施例1】
一种聚氨酯声学材料的制备方法,包括以下步骤:
(1)准备组分A:以重量份数计,在容器A中依次加入聚醚多元醇ⅠCHE-328N:65份、聚醚多元醇Ⅱ CHE-338N:29份、甘油交联剂:0.5份、表面活性剂 B8715:0.3份、催化剂ⅠPC-15:0.5份、催化剂Ⅱ DPA:0.5份、催化剂Ⅲ ZF-10: 0.2份、水:4份;在20~25℃下搅拌均匀;得到物料Ⅰ;
(2)准备组分B:在容器B中加入改性MDI Wannate 8018:60份;得到物料Ⅱ;
(3)将物料Ⅰ和物料Ⅱ分别抽入料罐A、料罐B中,分别开启高压循环;在高压机上设定好物料Ⅰ与物料Ⅱ重量比为100:60,通过高压机将物料Ⅰ和物料Ⅱ高速混合搅拌后,迅速注入模具中,模具温度设定为50~65℃,注料完毕后,合模熟化:2.5min,开模得到聚氨酯声学材料,其性能检测数据见表3所示。
【实施例2~6】
实施例2~6按照实施例1中的各个步骤进行,区别为发泡配方中的反应原料、原料配比不同,具体见表2;制备得到的聚氨酯声学材料的性能检测数据见表3所示。
表2 实施例1~6聚氨酯声学材料配方中各组分的重量份数
【比较例1】
(1)按以下重量份数准备原料:
组分A:100份,聚醚多元醇 A 30份、聚醚多元醇 C 50份、聚合物多元醇 POP-F 10份、二甘醇 1份和二乙醇胺 2份,凝胶催化剂 DPA 1.5份,表面活性剂 B8715和B8742 共1.2份,开孔剂 CHK-350D 1份,水 3.3份;
其中,聚醚多元醇A的羟值为27.5mgKOH/g,官能度为3,粘度为1300mpa·s;
聚醚多元醇C的羟值为35 mgKOH/g,官能度为3,粘度为1000 mpa·s;
聚合物多元醇 POP-F 的羟值为21.5 mgKOH/g,官能度为3,粘度为5500 mpa·s;固含量为42%。
组分B:Desmodur 3133 65份;
(2)制备组分A:
按照步骤(1)中的重量份数,在容器A中依次加入PPG-A、POP-F、二甘醇、二乙醇胺、DPA、B8715、B8742、CHK-350D和水,最后加入PPG-C,在23℃温度下搅拌均匀,得到物料Ⅰ;
(3)制备组分B:
按照步骤(1)中的重量份数,在容器B中加入Desmodur 3133,在23℃温度下储存待用,得到物料Ⅱ;
(4)将物料Ⅰ和物料Ⅱ分别抽入到料罐A、料罐B中,分别开启高压循环;在高压机上设定好物料Ⅰ和物料Ⅱ重量份数比100:65,通过高压机将物料Ⅰ和物料Ⅱ高速混合搅拌后,迅速注入事先准备好的密闭模具中,模具温度设定在55℃,注料完毕后,合模熟化5min。
表3 实施例1~6及比较例1的聚氨酯声学材料的性能检测数据
由表3可知,本发明通过采用不同的改性MDI,使得制备得到的聚氨酯声学材料的拉伸强度、压缩强度优于比较例1,同时通过催化剂、硅油、水分、聚醚多元醇、B组分的成分的合理选择、相互之间的协同作用,使制备得到的聚氨酯声学材料具有优异的透气率(25L/min),在不需要开孔剂的前提下,也能拥有优异的吸声效果,特别是低频率(1000HZ)时,吸声系数能达到0.7,4000HZ时,吸声系数能达到0.96,取得了较好地技术效果。
本具体实施例仅仅是对本申请的解释,其并不是很申请的限制,本领域技术人员在阅读完本说明说后可以根据需要对本实施例做出没有创造性贡献的修改,但只要在本申请的权利要求范围内都受到专利法的保护。
Claims (3)
1.一种聚氨酯声学材料,其特征在于,所述的聚氨酯声学材料的反应原料由组分A和组分B组成,组分A与组分B的重量比为100:60~70;其中,以重量份数计,组分A为:聚醚多元醇Ⅰ:41~70份,聚醚多元醇Ⅱ:20~50份,交联剂:0.2~0.9份,表面活性剂:0.2~0.45份,催化剂Ⅰ:0.3~0.8份,催化剂Ⅱ:0.3~0.8份,催化剂Ⅲ:0.05~0.5份,水:3.8~4.8份,色浆:0~1份;组分B为改性MDI;所述的聚醚多元醇Ⅰ的官能度为3~4,羟值为25~30mgKOH/g;聚醚多元醇Ⅱ的官能度为3~4,羟值为31~35mgKOH/g;所述的催化剂Ⅰ选自PC-15或Z-130中的至少一种;催化剂Ⅱ选自DPA、DMEA或NE-1082中的至少一种;催化剂Ⅲ选自ZF-10或NE-300中的至少一种;所述的表面活性剂为聚硅氧烷-氧化烯烃嵌段共聚物;所述的交联剂选自甘油、二乙醇胺或三乙醇胺中的至少一种;所述的表面活性剂选自B8715、B8734、B8742、B8738、L-3627或L-3628中的至少一种;所述的改性MDI选自Wannate 8018 或CNI-1800中的至少一种。
2.一种权利要求1所述的聚氨酯声学材料的制备方法包括以下步骤:
(1)制备组分A:以重量份数计,在容器A中依次加入聚醚多元醇Ⅰ:41~70份,聚醚多元醇Ⅱ:20~50份,交联剂:0.2~0.9份,表面活性剂:0.2~0.45份,催化剂Ⅰ:0.3~0.8份,催化剂Ⅱ:0.3~0.8份,催化剂Ⅲ:0.05~0.5份,水:3.8~4.8份,色浆:0~1份;在20~25℃下搅拌均匀;得到物料Ⅰ;
(2)制备组分B:在容器B中加入改性MDI,在20~25℃下储存待用,得到物料Ⅱ;
(3)将物料Ⅰ和物料Ⅱ分别抽入料罐A、料罐B中,分别开启高压循环;在高压机上设定好物料Ⅰ与物料Ⅱ重量比为100:60~70,通过高压机将物料Ⅰ和物料Ⅱ高速混合搅拌后,迅速注入模具中,模具温度设定为50~65℃,注料完毕后,合模熟化2~2.5min,开模得到聚氨酯声学材料。
3.一种权利要求1所述的聚氨酯声学材料在新能源电动车的驱动电机包裹中应用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311187994.8A CN116925316B (zh) | 2023-09-15 | 2023-09-15 | 一种聚氨酯声学材料、制备方法及其用途 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311187994.8A CN116925316B (zh) | 2023-09-15 | 2023-09-15 | 一种聚氨酯声学材料、制备方法及其用途 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN116925316A CN116925316A (zh) | 2023-10-24 |
CN116925316B true CN116925316B (zh) | 2023-12-08 |
Family
ID=88377419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311187994.8A Active CN116925316B (zh) | 2023-09-15 | 2023-09-15 | 一种聚氨酯声学材料、制备方法及其用途 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116925316B (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102558485A (zh) * | 2011-12-23 | 2012-07-11 | 山东东大一诺威聚氨酯有限公司 | 用于制作汽车隔音垫的环保型聚氨酯组合物及其制备方法 |
JP2013047338A (ja) * | 2011-07-28 | 2013-03-07 | Toyo Quality One Corp | 吸音衝撃吸収材及びその製造方法 |
KR101985111B1 (ko) * | 2017-12-14 | 2019-05-31 | 서울시립대학교 산학협력단 | 폴리우레탄 조성물, 이를 포함하는 흡음재 및 폴리우레탄 폼의 제조방법 |
CN116333259A (zh) * | 2021-12-22 | 2023-06-27 | 江苏长顺高分子材料研究院有限公司 | 吸音聚氨酯材料及其制备方法与用途 |
-
2023
- 2023-09-15 CN CN202311187994.8A patent/CN116925316B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013047338A (ja) * | 2011-07-28 | 2013-03-07 | Toyo Quality One Corp | 吸音衝撃吸収材及びその製造方法 |
CN102558485A (zh) * | 2011-12-23 | 2012-07-11 | 山东东大一诺威聚氨酯有限公司 | 用于制作汽车隔音垫的环保型聚氨酯组合物及其制备方法 |
KR101985111B1 (ko) * | 2017-12-14 | 2019-05-31 | 서울시립대학교 산학협력단 | 폴리우레탄 조성물, 이를 포함하는 흡음재 및 폴리우레탄 폼의 제조방법 |
CN116333259A (zh) * | 2021-12-22 | 2023-06-27 | 江苏长顺高分子材料研究院有限公司 | 吸音聚氨酯材料及其制备方法与用途 |
Also Published As
Publication number | Publication date |
---|---|
CN116925316A (zh) | 2023-10-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107602817B (zh) | 一种高耐寒聚氨酯减震垫及其制备方法 | |
CN102558485B (zh) | 用于制作汽车隔音垫的环保型聚氨酯组合物及其制备方法 | |
CN102174166A (zh) | 用于汽车顶棚的热塑性半硬质聚氨酯泡沫及其制备方法 | |
CN102942666B (zh) | 一种聚氨酯半硬质泡沫组合物及其制备方法 | |
CN102093527A (zh) | 一种组合聚醚、聚氨酯硬质泡沫及其原料组合物及用途 | |
CN112574378A (zh) | 作为吸音材料的低密度聚氨酯泡沫组合物,制造聚氨酯泡沫的方法和由其制造的聚氨酯泡沫 | |
CN116925316B (zh) | 一种聚氨酯声学材料、制备方法及其用途 | |
CN114426767B (zh) | 一种片状模塑料及其制备方法 | |
CN116333259B (zh) | 吸音聚氨酯材料及其制备方法与用途 | |
KR20150024464A (ko) | 기능성 폴리우레탄 폼 | |
CN106220816A (zh) | 一种微孔透气性能好的聚氨酯发泡海绵垫 | |
CN116102709B (zh) | 一种用于轮胎实芯填充的聚氨酯组合料及其制备方法和应用 | |
CN106632952B (zh) | 一种可热成型聚氨酯泡沫及其制备方法 | |
KR20100054284A (ko) | 자동차 플로어매트 흡음재용 폴리우레탄 발포체의 제조방법 | |
CN116284666A (zh) | 一种耐磨型聚氨酯微发泡跑道材料及制备方法 | |
CN112898523B (zh) | 一种聚氨酯泡棉及其制备方法和应用 | |
KR101974283B1 (ko) | 폴리우레탄 조성물, 이를 포함하는 흡음재 및 폴리우레탄 폼의 제조방법 | |
CN113999430B (zh) | 内脱模剂及制备方法、聚氨酯组合物及用其制备聚氨酯夹层部件的方法 | |
CN116239747A (zh) | 快速熟化的聚氨酯泡沫及其制备方法与应用 | |
KR101985111B1 (ko) | 폴리우레탄 조성물, 이를 포함하는 흡음재 및 폴리우레탄 폼의 제조방법 | |
CN110128617B (zh) | 基于两种植物油基的聚氨酯吸声材料及其制备方法 | |
CN113292697A (zh) | 一种超高密度聚氨脂软泡及其制备方法 | |
CN113150618A (zh) | 一种彩色铅笔芯及其制备方法 | |
CN110922572A (zh) | 聚氨酯软质泡沫用聚酯多元醇的制备方法、其制备的聚氨酯软质泡沫及其制备方法 | |
CN117624541A (zh) | 一种聚氨酯密封材料及其制备方法和用途 |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |