CN113980221A - 抗静电聚氨酯泡棉的制备方法 - Google Patents
抗静电聚氨酯泡棉的制备方法 Download PDFInfo
- Publication number
- CN113980221A CN113980221A CN202111316783.0A CN202111316783A CN113980221A CN 113980221 A CN113980221 A CN 113980221A CN 202111316783 A CN202111316783 A CN 202111316783A CN 113980221 A CN113980221 A CN 113980221A
- Authority
- CN
- China
- Prior art keywords
- polyurethane foam
- foaming mold
- injection cavity
- foamed
- cavity
- 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
- 229920005830 Polyurethane Foam Polymers 0.000 title claims abstract description 78
- 239000011496 polyurethane foam Substances 0.000 title claims abstract description 77
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000005187 foaming Methods 0.000 claims abstract description 84
- 238000002347 injection Methods 0.000 claims abstract description 75
- 239000007924 injection Substances 0.000 claims abstract description 75
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000013329 compounding Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 38
- 239000000110 cooling liquid Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 13
- 239000003063 flame retardant Substances 0.000 claims description 13
- 239000004088 foaming agent Substances 0.000 claims description 12
- 229920001228 polyisocyanate Polymers 0.000 claims description 11
- 239000005056 polyisocyanate Substances 0.000 claims description 11
- 239000004094 surface-active agent Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229920005906 polyester polyol Polymers 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910021485 fumed silica Inorganic materials 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000006260 foam Substances 0.000 abstract description 13
- 239000004814 polyurethane Substances 0.000 abstract description 9
- 229920002635 polyurethane Polymers 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 229920000742 Cotton Polymers 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 229910001586 aluminite Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- GKQPCPXONLDCMU-CCEZHUSRSA-N lacidipine Chemical compound CCOC(=O)C1=C(C)NC(C)=C(C(=O)OCC)C1C1=CC=CC=C1\C=C\C(=O)OC(C)(C)C GKQPCPXONLDCMU-CCEZHUSRSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
- B32B2255/102—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer synthetic resin or rubber layer being a foamed layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
本发明属于泡棉制造技术领域,具体为抗静电聚氨酯泡棉的制备方法,该抗静电聚氨酯泡棉的制备方法包括原料混合、负压发泡、冷却降温、材料复合以及模切成型,由于本发明不需要通过抽气降压,所以聚氨酯不会被抽出注入腔,进而可以避免靠近出气端的聚氨酯泡棉被撕裂,进而保证了聚氨酯泡棉的质量,通过在聚氨酯泡棉中掺杂铝粉,可以使得聚氨酯泡棉自身也带有弱抗静电的特性,进而可以避免在对聚氨酯泡棉进行风吹降温时,聚氨酯泡棉自身因摩擦而产生静电,同时在聚氨酯泡棉中缠在铝粉还可以提高聚氨酯泡棉的散热性,进而方便发泡后的聚氨酯泡棉快速降温。
Description
技术领域
本发明涉及泡棉制造技术领域,具体为抗静电聚氨酯泡棉的制备方法。
背景技术
泡棉是塑料粒子发泡过的材料,简称泡棉。泡棉分为PU泡棉、抗静电泡棉、导电泡棉、防静电EPE、架桥PE等。现有的抗静电泡棉主要有两大类,一类是在泡棉的表面镀上一层导电布,如铝箔布、导电纤维布、金布、镀炭布等;另一类是将导电材料加入到聚氨酯中,然后随着聚氨酯一起发泡,进而制成抗静电泡棉。第一类具有良好的抗静电效果,但是其制造较为麻烦,第二类虽然制造方便,但是导电材料会随着聚氨酯材料的发泡而分散,进而会导致其抗静电效果变差。
聚氨酯泡棉采用负压发泡后可以获得回弹好、强度高的特性,由于负压发泡需要在注入期保持模具内气压处于常压状态,所以其需要在发泡过程中抽取模具内的气体,而抽取模具内的气体时,模具内的热量也会被带出,热量的散失会导致模具内温度的温度快速降低,温度过低会导致聚氨酯的发泡进程停止,进而会导致聚氨酯泡棉的质量变差,且当发泡的聚氨酯靠近出气端时,出气端的吸力还会导致没有定型的聚氨酯被抽出,进而会导致靠近出气端的泡棉质量不合格。
发明内容
本发明的目的在于提供抗静电聚氨酯泡棉的制备方法,以解决上述背景技术中提出的现有的抗静电聚氨酯泡棉在进行负压发泡过程中,保持气压需要抽气的问题。
为实现上述目的,本发明提供如下技术方案:抗静电聚氨酯泡棉的制备方法,该抗静电聚氨酯泡棉的制备方法如下:
步骤一:将聚酯多元醇、表面活性剂及阻燃剂在高温、高压进行混合搅拌,将多异氰酸酯、催化剂、发泡剂及铝粉在高温、高压下进行混合搅拌,然后将两者在高压下进行混合,可以得到熔融状态的待发泡混合物;
步骤二:将待发泡混合物注入到发泡模具的注入腔内,发泡模具的内腔分为注入腔和调节腔,注入腔和调节腔通过可移动的间隔板进行间隔,注入腔内的气压处于常压状态,调节腔处于负压状态,当待发泡混合物进入发泡状态后,随着待发泡混合物注入量的增大,逐渐增大注入腔的体积,发泡模具内的待发泡混合物发泡完毕后,获得聚氨酯泡棉;
步骤三:发泡完毕后,通过冷却液对发泡模具降温,然后从发泡模具的进风口向发泡模具内部吹入干燥空气对聚氨酯泡棉进行降温,该低温空气会从发泡模具的出风口流出;
步骤四:冷却完毕后,对聚氨酯泡棉与发泡模具会进行脱模,随后将聚氨酯泡棉的一面与PET基膜进行粘黏复合,随后在聚氨酯泡棉的另一面喷涂抗静电TPU;
步骤五:对步骤四所得产物进行模切成型,即可获得抗静电聚氨酯泡棉。
优选的,所述待发泡混合物按质量份数包括聚醚多元醇60~70份、多异氰酸酯63~74份、催化剂2~3份、表面活性剂0.5~0.8份、发泡剂11~14份、阻燃剂5~7份、铝粉4~6份。
优选的,所述铝粉的粒径小于50um,所述阻燃剂为气相二氧化硅。
优选的,所述熔融状态的待发泡混合物从成型到其注入到发泡模具内的时间为1~2s,所述熔融状态的待发泡混合物后,4~5s时,开始增大发泡模具注入腔的体积。
优选的,所述步骤二中待发泡混合物未进入到发泡模具的注入腔前,所述发泡模具调节腔的体积是注入腔体积的100倍,且此时所述调节腔的内腔中处于负压状态。
优选的,所述步骤二中待发泡混合物未进入到发泡模具的注入腔前,所述发泡模具调节腔的温度与注入腔的温度保持相同。
优选的,所述发泡模具的注入腔在增大时,初始时,在10s内体积增大到10倍,随后随后开始匀速增大注入腔的体积,并使得注入腔的气压处于逐渐降低的状态,直至注入腔内的气压达到0.05个标准气压,随后控制注入腔内注入腔的体积缓慢增大,并保持注入腔的气压处于恒定状态。
优选的,所述步骤三中对发泡模具进行降温时,通入的冷却液的温度为35~40℃,且流出的冷却液的温度需要低于45℃时,当进入发泡模具的冷却液与流出发泡模具的冷却液的温度之差低于2℃时,开始向发泡模具内部吹入干燥空气,干燥空气的温度为常温即可。
与现有技术相比,本发明的有益效果是:
1)本发明通过增大发泡模具的注入腔的体积来降低注入腔内的气压,进而使得注入腔的内部处于负压状态,由于是空间增大导致的气压降低,所以此时热量可以均匀的分散到注入腔的内部,进而避免了注入腔的内部出现局部温度过低的情况;
2)由于本发明不需要通过抽气降压,所以聚氨酯不会被抽出注入腔,进而可以避免靠近出气端的聚氨酯泡棉被撕裂,进而保证了聚氨酯泡棉的质量;
3)通过在聚氨酯泡棉中掺杂铝粉,可以使得聚氨酯泡棉自身也带有弱抗静电的特性,进而可以避免在对聚氨酯泡棉进行风吹降温时,聚氨酯泡棉自身因摩擦而产生静电,同时在聚氨酯泡棉中缠在铝粉还可以提高聚氨酯泡棉的散热性,进而方便发泡后的聚氨酯泡棉快速降温。
附图说明
图1为本发明物理特性测试试验表格;
图2为本发明不同负压状态下测试试验表格;
图3为本发明抗静电聚氨酯泡棉剖面结构示意图;
图4为本发明生产流程示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,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,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要理解的是,术语“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
实施例:
请参阅图1-4,本发明提供一种技术方案:抗静电聚氨酯泡棉的制备方法,该抗静电聚氨酯泡棉的制备方法如下:
步骤一:将聚酯多元醇、表面活性剂及阻燃剂在高温、高压进行混合搅拌,将多异氰酸酯、催化剂、发泡剂及铝粉在高温、高压下进行混合搅拌,表面活性剂和发泡剂均为该领域常用物,催化剂采用五甲基二亚丙基三胺PC-77,这种催化剂具有平衡反应催化、优良开孔及表面固话效果,能增强泡棉的回弹力,聚酯多元醇、表面活性剂及阻燃剂在一号高压熔炉中混合,多异氰酸酯、催化剂、发泡剂及铝粉在二号高压熔炉中混合,再将两者向发泡模具内注入时,两者会先混合,随后再进入发泡模具内,两者混合可以得到熔融状态的待发泡混合物;
步骤二:将待发泡混合物注入到发泡模具的注入腔内,发泡模具的内腔分为注入腔和调节腔,注入腔和调节腔通过可移动的间隔板进行间隔,通过间隔板的密封,可以隔绝注入腔和调节腔之间的气体流通,注入腔内的气压处于常压状态,调节腔处于负压状态,当待发泡混合物进入发泡状态后,随着待发泡混合物注入量的增大,逐渐增大注入腔的体积,通过增大体积,可以降低注入腔内的气压,进而使得待发泡混合物在负压状态下进行发泡,发泡模具内的待发泡混合物发泡完毕后,获得聚氨酯泡棉;
步骤三:发泡完毕后,通过冷却液对发泡模具降温,发泡模具会对聚氨酯泡棉的表面进行降温,通过冷缩,会使得聚氨酯泡棉与发泡模具的表面脱离,然后从发泡模具的进风口向发泡模具内部吹入干燥空气对聚氨酯泡棉进行降温,该低温空气会从发泡模具的出风口流出,通过风带走聚氨酯泡棉内部的温度,完成聚氨酯泡棉的降温;
步骤四:冷却完毕后,对聚氨酯泡棉与发泡模具会进行脱模,随后将聚氨酯泡棉的一面与PET基膜进行粘黏复合,聚氨酯泡棉与PET基膜一体成型,可以方便后期的模切加工,随后在聚氨酯泡棉的另一面喷涂抗静电TPU,组成抗静电TPU喷涂层,从而使得泡棉表层拥有优异表面抗静电、和密封等效果;
步骤五:对步骤四所得产物进行模切成型,即可获得抗静电聚氨酯泡棉。
所述待发泡混合物按质量份数包括聚醚多元醇60~70份、多异氰酸酯63~74份、催化剂2~3份、表面活性剂0.5~0.8份、发泡剂11~14份、阻燃剂5~7份、铝粉4~6份。
所述铝粉的粒径小于50um,所述阻燃剂为气相二氧化硅,通过在聚氨酯泡棉中加入阻燃剂,可以使其具有良好的阻燃效果。
所述熔融状态的待发泡混合物从成型到其注入到发泡模具内的时间为1~2s,降低待发泡混合物在注入管道中的时间,从而避免待发泡混合物在注入管道中发泡,所述熔融状态的待发泡混合物后,4~5s时,开始增大发泡模具注入腔的体积,保证发泡进行时,发泡模具注入腔的体积即开始增大,进而使得发泡模具注入腔内处于负压状态。
所述步骤二中待发泡混合物未进入到发泡模具的注入腔前,所述发泡模具调节腔的体积是注入腔体积的100倍,且此时所述调节腔的内腔中处于负压状态,进而确保注入腔内的气压在降低后,可以处于0.05个标准气压内。
所述步骤二中待发泡混合物未进入到发泡模具的注入腔前,所述发泡模具调节腔的温度与注入腔的温度保持相同,避免注入腔的体积在增大时,在待发泡混合物接触到低温,低温会导致发泡混合物停止发泡。
所述发泡模具的注入腔在增大时,初始时,在10s内体积增大到10倍,快速的使注入腔内的气压降到0.1个标准大气压左右,从而便于发泡过程处于所需气压,随后随后开始匀速增大注入腔的体积,并使得注入腔的气压处于逐渐降低的状态,直至注入腔内的气压达到0.05个标准气压,该过程为调节过程,持续时间约为30s,随后控制注入腔内注入腔的体积缓慢增大,并保持注入腔的气压处于恒定状态,该负压状态下获得的聚氨酯泡棉压缩后回复性最好。
所述步骤三中对发泡模具进行降温时,通入的冷却液的温度为35~40℃,且流出的冷却液的温度需要低于45℃时,当进入发泡模具的冷却液与流出发泡模具的冷却液的温度之差低于2℃时,开始向发泡模具内部吹入干燥空气,干燥空气的温度为常温即可。
图1中物理特性中的厚度指的时,抗静电聚氨酯泡棉的厚度;密度指的是聚氨酯泡棉的平均密度;25%压缩力量指的是使聚氨酯泡棉产生25%的压缩形变时,每平方厘米所施加的力的平均值;压缩变形率指的是在70℃的条件下,通过外力使聚氨酯泡棉产生50%的压缩形变,并保持该力不变,持续22小时后,进行回弹测试,然后将回弹后的变形量与初始值进行对比;硬度指的是聚氨酯泡棉的平均硬度;尺寸稳定性指的是对聚氨酯泡棉进行拉伸压缩试验后,其尺寸的最大变化量;表面抗静电值指的是抗静电TPU喷涂层的抗静电值;长时间温度,最高温指的是抗静电聚氨酯泡棉可以长时间处于70℃的条件下进行工作;瞬时间温度,最高温指的是当抗静电聚氨酯泡棉的工作温度达到120℃时,在段时间内抗静电聚氨酯泡棉还可以正常工作;
图3中最上层为抗静电TPU喷涂层,抗静电TPU喷涂层的下侧为聚氨酯泡棉,聚氨酯泡棉的下侧为PET基膜。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点,对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明;因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内,不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (8)
1.抗静电聚氨酯泡棉的制备方法,其特征在于:该抗静电聚氨酯泡棉的制备方法如下:
步骤一:将聚酯多元醇、表面活性剂及阻燃剂在高温、高压进行混合搅拌,将多异氰酸酯、催化剂、发泡剂及铝粉在高温、高压下进行混合搅拌,然后将两者在高压下进行混合,可以得到熔融状态的待发泡混合物;
步骤二:将待发泡混合物注入到发泡模具的注入腔内,发泡模具的内腔分为注入腔和调节腔,注入腔和调节腔通过可移动的间隔板进行间隔,注入腔内的气压处于常压状态,调节腔处于负压状态,当待发泡混合物进入发泡状态后,随着待发泡混合物注入量的增大,逐渐增大注入腔的体积,发泡模具内的待发泡混合物发泡完毕后,获得聚氨酯泡棉;
步骤三:发泡完毕后,通过冷却液对发泡模具降温,然后从发泡模具的进风口向发泡模具内部吹入干燥空气对聚氨酯泡棉进行降温,该低温空气会从发泡模具的出风口流出;
步骤四:冷却完毕后,对聚氨酯泡棉与发泡模具会进行脱模,随后将聚氨酯泡棉的一面与PET基膜进行粘黏复合,随后在聚氨酯泡棉的另一面喷涂抗静电TPU;
步骤五:对步骤四所得产物进行模切成型,即可获得抗静电聚氨酯泡棉。
2.根据权利要求1所述的抗静电聚氨酯泡棉的制备方法,其特征在于:所述待发泡混合物按质量份数包括聚醚多元醇60~70份、多异氰酸酯63~74份、催化剂2~3份、表面活性剂0.5~0.8份、发泡剂11~14份、阻燃剂5~7份、铝粉4~6份。
3.根据权利要求1所述的抗静电聚氨酯泡棉的制备方法,其特征在于:所述铝粉的粒径小于50um,所述阻燃剂为气相二氧化硅。
4.根据权利要求1所述的抗静电聚氨酯泡棉的制备方法,其特征在于:所述熔融状态的待发泡混合物从成型到其注入到发泡模具内的时间为1~2s,所述熔融状态的待发泡混合物后,4~5s时,开始增大发泡模具注入腔的体积。
5.根据权利要求1所述的抗静电聚氨酯泡棉的制备方法,其特征在于:所述步骤二中待发泡混合物未进入到发泡模具的注入腔前,所述发泡模具调节腔的体积是注入腔体积的100倍,且此时所述调节腔的内腔中处于负压状态。
6.根据权利要求1所述的抗静电聚氨酯泡棉的制备方法,其特征在于:所述步骤二中待发泡混合物未进入到发泡模具的注入腔前,所述发泡模具调节腔的温度与注入腔的温度保持相同。
7.根据权利要求1所述的抗静电聚氨酯泡棉的制备方法,其特征在于:所述发泡模具的注入腔在增大时,初始时,在10s内体积增大到10倍,随后随后开始匀速增大注入腔的体积,并使得注入腔的气压处于逐渐降低的状态,直至注入腔内的气压达到0.05个标准气压,随后控制注入腔内注入腔的体积缓慢增大,并保持注入腔的气压处于恒定状态。
8.根据权利要求1所述的抗静电聚氨酯泡棉的制备方法,其特征在于:所述步骤三中对发泡模具进行降温时,通入的冷却液的温度为35~40℃,且流出的冷却液的温度需要低于45℃时,当进入发泡模具的冷却液与流出发泡模具的冷却液的温度之差低于2℃时,开始向发泡模具内部吹入干燥空气,干燥空气的温度为常温即可。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111316783.0A CN113980221A (zh) | 2021-11-09 | 2021-11-09 | 抗静电聚氨酯泡棉的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111316783.0A CN113980221A (zh) | 2021-11-09 | 2021-11-09 | 抗静电聚氨酯泡棉的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113980221A true CN113980221A (zh) | 2022-01-28 |
Family
ID=79747214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111316783.0A Pending CN113980221A (zh) | 2021-11-09 | 2021-11-09 | 抗静电聚氨酯泡棉的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113980221A (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06190841A (ja) * | 1992-12-24 | 1994-07-12 | Toyota Motor Corp | 低密度ポリウレタンフォームの成形方法 |
US5464582A (en) * | 1990-06-12 | 1995-11-07 | Toyoda Gosei Co., Ltd. | Method for molding polyurethane foam under subatmospheric pressures |
CN101974219A (zh) * | 2010-10-28 | 2011-02-16 | 深圳市新纶科技股份有限公司 | 耐磨抗静电聚氨酯材料及其制备方法 |
CN102558831A (zh) * | 2011-10-22 | 2012-07-11 | 上海华篷防爆科技有限公司 | 一种有机阻隔防爆材料及其制备方法 |
CN104341573A (zh) * | 2013-08-07 | 2015-02-11 | 上海抚佳精细化工有限公司 | 一种聚氨酯泡沫塑料及其制备方法 |
CN104619759A (zh) * | 2012-07-31 | 2015-05-13 | 拜尔材料科学股份公司 | 制备聚氨酯泡沫的真空辅助式方法 |
CN108165191A (zh) * | 2017-12-28 | 2018-06-15 | 张家港康得新光电材料有限公司 | 一种泡棉及其制备方法与应用 |
-
2021
- 2021-11-09 CN CN202111316783.0A patent/CN113980221A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5464582A (en) * | 1990-06-12 | 1995-11-07 | Toyoda Gosei Co., Ltd. | Method for molding polyurethane foam under subatmospheric pressures |
JPH06190841A (ja) * | 1992-12-24 | 1994-07-12 | Toyota Motor Corp | 低密度ポリウレタンフォームの成形方法 |
CN101974219A (zh) * | 2010-10-28 | 2011-02-16 | 深圳市新纶科技股份有限公司 | 耐磨抗静电聚氨酯材料及其制备方法 |
CN102558831A (zh) * | 2011-10-22 | 2012-07-11 | 上海华篷防爆科技有限公司 | 一种有机阻隔防爆材料及其制备方法 |
CN104619759A (zh) * | 2012-07-31 | 2015-05-13 | 拜尔材料科学股份公司 | 制备聚氨酯泡沫的真空辅助式方法 |
CN104341573A (zh) * | 2013-08-07 | 2015-02-11 | 上海抚佳精细化工有限公司 | 一种聚氨酯泡沫塑料及其制备方法 |
CN108165191A (zh) * | 2017-12-28 | 2018-06-15 | 张家港康得新光电材料有限公司 | 一种泡棉及其制备方法与应用 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112341662B (zh) | 一种皮芯结构的灰色抗静电聚丙烯复合发泡珠粒及其模塑制品 | |
CN109501107B (zh) | 一种低密度、高发泡倍率的聚合物泡沫材料及其制备方法 | |
CA2833949C (en) | Method for producing microcellular foam polypropylene thick board | |
CN113308017B (zh) | 一种力学强度优异的发泡聚丙烯珠粒及其模塑制件 | |
CN109485993B (zh) | 一种真实微孔注塑成型聚丙烯泡沫材料及其制备方法 | |
CN108285578A (zh) | 一种pp/abs微发泡材料的制备方法 | |
CN113980221A (zh) | 抗静电聚氨酯泡棉的制备方法 | |
CN107083058A (zh) | 改性二氮杂萘酮结构聚芳醚砜酮树脂、微孔材料及制备方法 | |
CN105291340B (zh) | 利用高吸水树脂作为载体的水发泡注射方法 | |
CN101838453B (zh) | 薄壁热塑性树脂制品及生产方法 | |
CN109265825B (zh) | 一种聚丙烯或聚丙烯复合物发泡制品及其制备方法 | |
CN112940334B (zh) | 一种高隔热高抗压低密度耐热型复合环氧泡沫的制备方法 | |
JP2008142997A (ja) | 射出発泡成形体の製造方法および該方法によって得られる成形体 | |
CN114605694A (zh) | 一种增强型聚丁烯发泡材料及其制备方法 | |
CN108127997B (zh) | 一种高强度聚丙烯发泡板及其制备方法 | |
CN112959585A (zh) | 一种微发泡注塑制备轻量化高性能聚对苯二甲酸丁二醇酯制品的方法和工艺 | |
CN113292789A (zh) | 一种聚丙烯微孔发泡材料及其制备方法 | |
CN110862569A (zh) | 一种低熔体强度聚丙烯发泡颗粒的制备方法 | |
CN106808638B (zh) | 注塑件及其形成方法、包边结构以及车窗 | |
CN111995791A (zh) | 一种热塑性轻型泡沫塑料的制备方法 | |
CN207206919U (zh) | 一种塑料结构件的发泡成型模具 | |
CN109624184B (zh) | 一种利用普通注射成型机加工制备的聚碳酸酯微发泡制品及其加工方法 | |
CN109354818B (zh) | 一种齿牙注塑料、微发泡的轻质拉链链牙及其制备方法和微发泡齿牙拉链 | |
CN117209715B (zh) | 一种聚氨酯密封材料的使用方法 | |
CN113372652B (zh) | 一种epp发泡用模压耐高温成型专用料 |
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220128 |