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                汽油辛烷值增效抗爆劑(甲基環戊二烯三羰基錳--MMT)
                甲基環戊二烯二聚體
                HA-9510高效活性脫硫劑系列
                汽油清凈劑(第四代)
                KC-888聚氨酯泡沫穩定劑系列
                CX-2018柴油穩定劑
                CT-528柴油流動性改良劑
                 
                產品系列 >> KC-888泡沫穩定劑  

                KC-888泡沫穩定劑

                一、結構式

                二、性能

                  KC-888勻泡劑是一種聚硅氧烷一聚醚共聚物表面活性劑,為硅碳鍵耐水解型泡沫穩定劑。主要應用于生產硬質聚氨酯泡沫塑料,是一種優良的新型產品。
                  KC-888勻泡劑是科學院與我廠科技人員經過反復研制成功的。得到有關專家及權威人士一致好評,國內外用戶單位反映良好,它的綜合性能已達到了B8404等國外同類先進產品的水平,1991年4月已通過江蘇省省級鑒定,由于它的結構設計合理,該品具有下述突出特點:
                  1.KC-888在異氰酸醋、聚醚多元醇(如聚醚635、835、1050、4110、403等)及氟碳發泡劑、胺和有機錫催化劑,阻燃劑的體系中有良好的可溶性和穩定性。長期貯存不會渾濁,不會分離,與水共存至少半年性能不變,配制的組合聚醚貯存至少六個月以上發泡性能不變。
                  2.KC-888具有優異的表面活性和乳化能力,在組合聚醚中(100份)加入KC-888 1.5份,其結果可使塑料泡孔結構細小均勻,高度閉孔,增加泡沫塑料的隔熱性能和機械強度、測試對比數據如下:

                勻泡劑牌號

                用量

                F11最大保留量(50℃度 100份聚醚)

                模擬重力場
                貯存一年
                F11析出情況

                泡孔情況

                KC-888

                1.5份

                31.5份

                不析出

                細小均勻密度分布均勻

                德國高斯密特公司 B8404

                1.5份

                32份

                不析出

                細小均勻密度分布均勻

                美國聯碳公司L5420,L580

                1.5份

                31份

                不析出

                細小均勻密度分布均勻

                國產其它牌號勻泡劑

                2份-2.5份

                23-25份

                均析出

                泡孔略粗不均勻

                I.Formula:

                Performance:
                 KC-888 is a surfactant of polysiloxane-polyether copolymer,and at the same time a silicon-carbide-bond antihydrolytic foam stabilizer. It is a good-quality and new-type product used for manufacturing rigid polyurethane cellula plastic.
                 KC-888 has been developed by technicians of a Academy of Sciences and our factory. It is highly appraised by relevant experts ,authoritive persons and our clients both at home and abroad. Its overall properties are equal to those of B8404 and of other advanced foreign equivalents. In April of 1991,this product obtained the quality appraisal approval from a provincial authoritive department of Jiangsu Province. It has unique propertiesas follow:
                 1. It has good solubility and stability in the series of isocyanate,polyether polyol (such as Polyether 635,835,1050,4110 and 403) ,fluorocarbon bubbling agent.amine,organo-tin catalyst and fire retardant. It can not become turbid nor decomposed during long-time storage. It still maintains its performance when it coexists with water for half a year. The conjugate polyether per a certain formula remains good in making foam in spite of half-a-year storage.
                 2. It has excellent surfaee-aetiveness and emulsification. 100 portions of conjugate polyether with 1.5 portions of KC-888 added in it can make fine.uniform and highly-closed foam and increase the heat-insulation and mechanical strength of cellula plastic.
                 Tested Constrast Data Are As Follow:

                Brand No.

                Dose

                Reserved F11 Max. ( 100 portions
                of polyether, 50℃)

                Separation of F11 after 1 year of storage in simulated gravity field

                State of foam

                KC-888

                1.5

                31.5

                No

                Fine uniform foam and evenly distributed density

                B8404 made in Germany

                1.5

                32

                No

                L5420.L580 made in USA

                1.5

                31

                No

                Other domestic products

                2-7

                23-25

                No

                Coarse and uneven


                 3、KC-888勻泡劑,可使物料具有良好的流動性,和均勻的密度分布,使模塑制品成型良好,可節約原料、降低成本。測定對比數據見下表:

                勻泡劑牌號

                流動性指數Cm/g

                KC-888

                O.47-0.49

                B8404

                0.48

                L5420,L580

                0.48

                國產勻泡劑

                0.36

                  4.KC-888可顯著減小甚至消除塑料制品的“剪切線”現象,有利提高電冰箱、冰柜的保溫效果,并增強泡沫體與冰箱外殼的粘結強度。用KC-888配制的冰箱料,其剪切線現象明顯優于英國ICI的冰箱組合料,(減少剪切線現象是冰箱料的重要要求)。
                  5.特別適合于低氟聚醚多元醇的工藝發泡配方,有效降低 F11用量50%以上(在半水發泡中,閉孔率達94%以上)。
                  由于KC-888勻泡劑具有上述優點,它特別適合于組合聚醚的生產.適合于制造冰箱、冰柜隔熱材料、夾心板材、保溫管材、噴涂施工等。

                三、產品質量指標

                外 觀

                透明粘性液體

                粘度(25℃)MPa·S

                600±120

                濁點(4%水溶液)

                64±5

                相對密度d20°20℃

                1.07±0.02

                凝固點(℃)≤

                -12℃±3

                折光率(N2020)

                1.445±0.005

                貯存穩定性

                12個月

                酸值(MgKOH/g)≤

                0.25

                四、貯存與使用注意事項:
                  1.本品無毒無腐蝕性。
                  2.密閉貯放在干燥處,保存期12個月以上。
                  3.低溫時本品若發生渾濁,并不影響使用。加熱至30℃左右即恢復透明。
                  4.本品為水溶性物,若潑灑可用水擦洗。

                3. KC-888 can make materials(to be foam) fluid well,distribute foam evenly and turn p]astic products into good shape. It can save raw materials and reduce production cost.Tested Contrast Data Are As Follow:

                Brand No.

                Fluidity index Cm/g

                KC-888

                O.47-0.49

                B8404

                0.48

                L5420,L580

                0.48

                Other domestic products

                0.36

                 4. KC-888 can obviously reduce or even eliminate" shear line" phenomenon, so as to increase heat-insulation of frigers and ice cupboards and at the same time increase bond strength between cellula plastic and outer covering of frigers. Cellula plastic with KC-888 in it has less "shear line"phenomenon than that of ICI refrigers made in Britain (It is important for cellula plastic in frigers to have as little "shear line" aspossible ).

                 5. It is especially fit for the formula for the bubbling process of low-fluoric polyether polyol. It can reduce the dose of F11, by more than 50%(when bubbles in half water state, aperture-closure ratio is over 94%.
                 Because of the above advantages ,it is especially fit for the production of conjugate polyether.which can be used in the production of heat-insulated materials for frigers and ice cupboards, sandwich boards, beat-insulated pipes and etc.

                Ⅲ. Specifications:

                Appearance


                Transparent viscous liquid

                Viscosity(25℃)MPa·S

                600±120

                Turbidity (4% water solution )

                64±5

                Relative density d20°20℃

                1.07±0.02

                Solidity(℃)≤

                -12℃±3

                Diopter(N2020)

                1.445±0.005

                Storage life

                12 months

                Acidity(MgKOH/g)≤

                0.25

                IV. Points for Attention to Storage &Application:
                 1. This product is unpoisonous and uncorrosive.
                 2. It must be sealed and stored in a dry place for no more than 12 months.
                 3. It does not matter if the product becomes turbid at low temperature. It will become transparent again if heated to
                   30℃.
                 4. It is soluble in water and so it can be washed away by water.


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