亚洲成人三区,一级毛片久久久,国产精品密蕾丝视频下载,欧美成人国产va精品日本一级

 

elastomer environmental protection catalyst/nt cat e-129

2023-11-13by admin

elastomer environmental protection catalyst/nt cat e-129

overview:

product name: polyurethane elastomer environmental catalyst nt cat e-129

alias: polyurethane elastomer eco-friendly catalyst, elastomer eco-friendly catalyst, eco-friendly catalyst, elastomer catalyst, elastomer catalyst nt cat e-129

product description: has a certain special odor, insoluble in water, easily soluble in general polyurethane raw materials such as polyether, polyester polyol, etc..

properties description:

the appearance of this product is light yellow transparent liquid, chromaticity (apha) ≤ 50; density 1.17g/cm3 (25 ℃), viscosity 125mpa.s (25 ℃), flash point 127 ℃; there is a certain special smell, insoluble in water, easily soluble in general polyurethane raw materials, such as polyether, polyester polyol, etc..

this product does not contain pbb, pbde, lead, mercury, cadmium, etc. restricted by rohs regulations, and at the same time, it does not contain nine types of organotin compounds such as octyltin, butyltin, phenyltin, etc. polyurethane materials synthesized by the use of this product can pass the stringent environmental protection regulations of the u.s.a. and the european union. it is a substitute for traditional organic mercury and lead catalysts in certain fields of polyurethane.

product characteristics:

this product is developed for the requirement of no air bubbles in the field of polyurethane case (especially for polyurethane elastomers), which is completely different from the commonly used amine-tin catalysts, and its unique water-suppressing function can effectively shield the reaction between the trace water contained in the polyurethane raw materials and the isocyanate, avoiding the co2 bubbles generated from the reaction (polyether polyols can be used without high-temperature vacuum dewatering). even in humid rainy weather, it can also effectively avoid the phenomena of multi-foam, cracking, bulging and peeling, etc. this feature is very similar to that of organic mercury.

the unique catalytic function of this product has a longer operation time compared with other products in this series, which ensures the original low viscosity and good fluidity of the combination material before mixing, which is very important for reducing the air bubbles produced by mixing and filling the mold cavity quickly; when the temperature in the system reaches 40℃, the super catalytic effect of this product begins to appear, which can make the polyurethane combination material reach the dewatering point within 20 minutes (or even shorter) after the mixing is completed. (or even shorter) after mixing, the polyurethane composition reaches the required strength for demolding without subsequent heating and vulcanization, which is typical of low energy consumption and high efficiency.

areas of application:

nt cat e-129 has a good delay effect in this series of catalysts and excellent hydrolysis resistance, when the material temperature is lower than 40℃, the catalytic activity is very low, when the material temperature reaches 40℃, the catalytic activity starts to show, when the material temperature reaches 50℃, the catalytic activity increases rapidly, and when the temperature reaches 110℃, the catalytic activity is even stronger than common organotin and organobismuth on the market.nt cat e-129 is very suitable for the production of organic tin and organic bismuth. cat e-129 is very suitable for detda (e-100) as a curing agent for the combination of materials, such as the production of transparent ** shoes skate wheel combination of materials and semi-polyurethane, compared with other catalysts have a longer flow time (pot life) to meet the needs of the mold filling, so the production of hardness more than 92a skateboard wheels, shock absorbers and large products.

nt cat e-129 is used in mdi systems using alcohols as curing agents. it is characterized by a gentle reaction temperature rise curve and lower shrinkage than ordinary tin catalysts.

this product can be widely used in the field of polyurethane case to produce ** wheels, one and two-component sealants, coatings, adhesives, etc. it is used for aliphatic isocyanates and will not yellow the products.

instructions for use:

it is recommended to add polyol (polyol, p material) component when this product is used, and it is good to add it before sealing after vacuum degassing, and mix it well. it can also be added into isocyanate (iso, i material) component, but because of some raw materials may have the danger of gel tank, please carry out the applicability test first. the dosage is related to the product system and hardness, etc. generally, the dosage is 0.5~1‰ of the weight of p material. because of the different uses of the product environmental requirements vary, it is recommended that the user in accordance with the relevant standards to do the actual test shall prevail.

shelf life.

unopened shelf life of 12 months.

storage and transportation:

should be sealed and stored in a dry, cool and ventilated warehouse

packing:

200kg/drum storage: it is recommended to store in dry and cool area with proper ventilation. please fasten the package cover as soon as possible after the original packaging to prevent the mixing of other substances such as moisture and other substances that may affect the product performance. store in a cool and dry place, keep the container sealed and avoid contact with oxides. do not inhale dust and avoid contact with skin and mucous membranes. smoking, eating and drinking are prohibited in the workplace. after work, shower and change clothes. store contaminated clothing separately and wash before use. maintain good hygiene practices. the company recommends that all polyurethane catalysts be stored in a dry, cool, properly ventilated area.

company?name:

newtop?chemical?materials?(shanghai)?co.,?ltd.

sales?manager:

hunter

e_mail:

?sales@newtopchem.com

telephone:

86-152 2121 6908

fax:

86-021-5657?7830

address:

rm.?1104,?no.?258,?songxing?west?road,
baoshan?district,?shanghai,?china?(mainland)

website:

m.mimgu.com?

admin

亚洲成人三区,一级毛片久久久,国产精品密蕾丝视频下载,欧美成人国产va精品日本一级
www.一区二区| 69堂成人精品免费视频| 亚洲一区二区三区自拍| 国产精品国产三级国产有无不卡| 欧美午夜一区二区三区 | 日韩亚洲电影在线| 99久久综合精品| 欧美色涩在线第一页| 在线综合+亚洲+欧美中文字幕| 91精品国产综合久久婷婷香蕉| 欧美色视频在线| 欧美不卡一区二区三区四区| 欧美成人精品3d动漫h| 国产亚洲欧美一级| 亚洲第一福利视频在线| 国产真实乱子伦精品视频| 亚洲bt欧美bt精品777| 日韩激情一区二区| 韩国欧美国产1区| 97超碰欧美中文字幕| 欧美一区二区三区四区在线观看| 日韩精品最新网址| 亚洲男女毛片无遮挡| 美女视频免费一区| 欧美午夜不卡视频| 欧美国产一区视频在线观看| 亚洲成av人片在线观看| 大白屁股一区二区视频| 欧美巨大另类极品videosbest | 久久电影网电视剧免费观看| av一区二区三区| 欧美一区二区成人6969| 亚洲啪啪综合av一区二区三区| 麻豆91精品91久久久的内涵| 欧美亚洲综合网| 亚洲男人天堂av| 日本韩国欧美在线| 综合色中文字幕| av电影天堂一区二区在线观看| 精品国产免费久久| 国产成人精品亚洲777人妖| 日韩精品一区二区三区蜜臀| 久久国产剧场电影| 日韩欧美综合一区| 国产精品一区在线观看乱码 | 蜜臀久久99精品久久久久久9| 欧美日韩电影在线| 亚洲高清一区二区三区| av不卡在线观看| 亚洲三级在线观看| 欧美日韩一级二级三级| 日韩成人dvd| 国产三级精品视频| 欧美在线制服丝袜| 日本欧美肥老太交大片| 亚洲国产成人一区二区三区| 欧美亚日韩国产aⅴ精品中极品| 亚洲综合视频网| 久久久一区二区| 欧美亚洲一区二区在线观看| 国产一区二区三区在线观看免费视频 | 91老师国产黑色丝袜在线| 伦理电影国产精品| 一区二区三区在线观看欧美| 欧美日韩国产一二三| 美女视频网站黄色亚洲| 首页国产丝袜综合| 亚洲成a人v欧美综合天堂| 国产精品久久久久久久久久久免费看| 3d动漫精品啪啪1区2区免费| 不卡av在线免费观看| 国产凹凸在线观看一区二区| 美女性感视频久久| 热久久一区二区| 免费视频一区二区| 日本美女一区二区三区| 午夜精品久久久久久不卡8050| 一区二区在线观看视频 | 欧美精品色综合| 日韩一区二区视频在线观看| 欧美人牲a欧美精品| 日韩精品一区二区三区视频在线观看 | 91精品国产手机| 91精品国产福利在线观看| 91精品国产福利| 欧美成人精品福利| 亚洲天堂免费看| 亚洲一本大道在线| 激情综合一区二区三区| 高清不卡一二三区| 日本福利一区二区| 国产午夜精品美女毛片视频| 欧美激情综合五月色丁香小说| 一区二区欧美国产| 韩国欧美国产1区| 成年人国产精品| 日韩三级在线免费观看| 26uuu另类欧美亚洲曰本| 一区二区三区**美女毛片| 伦理电影国产精品| 欧美调教femdomvk| 91麻豆精品91久久久久久清纯 | 欧美日本在线播放| 中文字幕av不卡| 开心九九激情九九欧美日韩精美视频电影 | 久久久欧美精品sm网站| 亚洲午夜成aⅴ人片| 91天堂素人约啪| 欧美激情综合五月色丁香小说| 视频一区视频二区中文字幕| 色一情一乱一乱一91av| 亚洲欧美综合网| 99久久久国产精品| 亚洲欧美日本在线| 91麻豆swag| 日日骚欧美日韩| 欧美一区二区播放| 经典三级一区二区| 国产精品色噜噜| 91原创在线视频| 一区二区三区日韩欧美精品| 91影院在线免费观看| 亚洲精品国产精华液| 欧美日韩国产美女| 欧美a级理论片| 一区免费观看视频| 91精品久久久久久蜜臀| 国产精品综合av一区二区国产馆| 国产色产综合产在线视频| 99精品一区二区| 青娱乐精品视频| 亚洲男同性视频| 久久久国产精品麻豆| 欧美中文字幕亚洲一区二区va在线 | 欧美日韩一区三区四区| 国产一区二区美女诱惑| 亚洲在线免费播放| 亚洲欧美自拍偷拍色图| 91高清视频在线| 成人午夜视频福利| 精品一区二区三区欧美| 丝袜美腿一区二区三区| 亚洲天天做日日做天天谢日日欢| 久久综合给合久久狠狠狠97色69| 欧美理论片在线| 在线观看视频欧美| 色综合天天综合狠狠| 99国产精品99久久久久久| 国产精品影视在线观看| 国产另类ts人妖一区二区| 日本成人在线视频网站| 美女诱惑一区二区| 国产综合色产在线精品| 蜜桃av一区二区| 欧美日韩精品一区视频| 国产.欧美.日韩| www.一区二区| 欧美性猛片xxxx免费看久爱| 欧美精品在线视频| 91.xcao| 欧美国产日韩a欧美在线观看 | 成人午夜又粗又硬又大| 国产剧情一区二区三区| 成人一级片网址| 在线成人av网站| 日韩情涩欧美日韩视频| 亚洲人一二三区| 精品一二三四在线| 色哟哟亚洲精品| 欧美一区二区三区在线观看| 亚洲国产精品精华液2区45| 一级做a爱片久久| 国产精品亚洲综合一区在线观看| 91理论电影在线观看| 欧美精品一区二| 日韩激情一二三区| proumb性欧美在线观看| 久久久久久久综合狠狠综合| 亚洲午夜一区二区| 91亚洲男人天堂| 国产蜜臀av在线一区二区三区| 亚洲国产视频直播| 91成人免费在线视频| 欧美经典一区二区三区| 国内精品伊人久久久久影院对白| 91成人国产精品| 污片在线观看一区二区| 国产黑丝在线一区二区三区| 欧美中文一区二区三区| 一区二区三区免费看视频| 丁香激情综合国产| 国产精品国产三级国产aⅴ原创| 福利一区福利二区| 国产精品乱人伦| 在线观看日韩国产| 亚洲国产视频一区二区| 日韩欧美在线网站| 懂色一区二区三区免费观看| 中文字幕巨乱亚洲| 色中色一区二区|