Summary of the invention
The purpose of this invention is to provide a kind of inorganic whisker modified SBS segmented copolymer adhesive and preparation method thereof, to overcome the above-mentioned defective that prior art exists.
Inorganic whisker modified SBS segmented copolymer adhesive of the present invention is made of the component of following proportioning:
SBS segmented copolymer 100 grams
Terpine resin 60 grams
Gum Rosin 60 grams
Inorganic crystal whisker 4~12 grams
400~1200 milliliters of mixed solvents
The triblock copolymer of said SBS styrene-butadiene-styrene can adopt the commercially available prod, and the trade mark of producing as BaLing Petroleum Chemical Engineering Co., Ltd is the YH-768 product;
Anionic SBS block copolymer preferably;
Said terpine resin is the commercially available prod, and the trade mark of producing as the safe general chemical company limited in Ganzhou is the TP1095 product;
Said Gum Rosin is the commercially available prod, as the superfine rosin of level land board of oasis, Wuping County, Fujian Province woodsization company limited production;
Since the scientist of U.S. telephone bell company in 1948 finds whisker first, existing so far hundreds of whisker, mainly can be divided into inorganic crystal whisker and organic crystalline must two big classes.Described inorganic crystal whisker is meant and has certain length-to-diameter ratio that (general surpass>10) and sectional area are less than 5.2 * 10
-5Cm
2A kind of whiskers body material, be a kind of by artificial control with the growth of monocrystalline form, shape be similar to staple fibre and size much smaller than staple fibre must the shape single crystal.Because the inner atomic arrangement structure that has high-sequential, its intensity be near the crystal theoretical value, thereby has extraordinary strengthening and toughening effect.
Preferably, inorganic crystal whisker can be selected from commercially available silicon carbide whisker, potassium titanate crystal whisker, calcium sulfate crystal whiskers, aluminium borate whisker, magnesium sulfate crystal whisker or ZnOw.
Described mixed solvent is 120
#The mixture of gasoline and acetone, in volume ratio:
120
#Gasoline: acetone=3~5: 1;
Preferably, the component by following proportioning constitutes:
SBS segmented copolymer 100 grams
Terpine resin 60 grams
Gum Rosin 60 grams
Inorganic crystal whisker 6~12 grams
600~800 milliliters of mixed solvents
The preparation method of described inorganic whisker modified SBS segmented copolymer adhesive comprises the steps:
Under 20~30 ℃, described SBS segmented copolymer is added in the mixed solvent, dissolving adds terpine resin and Gum Rosin, inorganic crystal whisker then, is warming up to 75~95 ℃, stirs 1.0~2.0 hours, promptly gets inorganic whisker modified SBS segmented copolymer adhesive.
Sample test:
Press GB/T 2791-1995, tackiness agent is coated equably on the PVC leatheroid of 200mm * 25mm, hang moments later, involutory gummed bonding plane, 20~30 ℃ of following mummification (film forming) 72 hours, on XLW-1 smart electronics tension testing machine, carry out T type peel strength test with the speed of 100mm/min.
The present invention adopts a kind of inorganic whisker modified anionic SBS block copolymer adhesive, and its T type stripping strength is than not improved 41.51% with inorganic whisker modified anionic SBS block copolymer adhesive.The raising of tackiness agent bonding strength is remarkable after the modification, the modified technique condition is easy, with low cost, and application prospect is boundless.
Embodiment
Comparative Examples 1
Under 25 ℃, 100 gram anionic SBS block copolymers are added in the 600ml mixed solvent, the proportioning of mixed solvent is: 120
#Gasoline: acetone=3: 1 (volume ratio), stir after 1.5 hours, anionic SBS block copolymer dissolves fully, add 60 gram terpine resins and 60 gram Gum Rosins then, be warming up to 80 ℃, restir 1.5 hours is not promptly used inorganic whisker modified anionic SBS block copolymer adhesive.
Press GB/T 2791-1995, tackiness agent is coated equably on the PVC leatheroid of 200mm * 25mm, hang moments later, involutory gummed bonding plane, mummification under the room temperature (film forming) 72 hours, on XLW-1 smart electronics tension testing machine, carry out T type peel strength test with the speed of 100mm/min.Test value sees Table 1.
Embodiment 1
Under 25 ℃, 100 gram anionic SBS block copolymers are added in the 400ml mixed solvent, the proportioning of mixed solvent is: 120
#Gasoline: acetone=3: 1 (volume ratio), stir after 1.5 hours, anionic SBS block copolymer dissolves fully, add 60 gram terpine resins, 60 gram Gum Rosin and 4g silicon carbide whiskers then, be warming up to 95 ℃, restir promptly obtained with the whisker modified anionic SBS block copolymer adhesive of inorganic salt in 1.5 hours.
Silicon carbide whisker is that Xuzhou grand military nano material company limited model is the product of beta sic, and average aspect ratio is more than or equal to 20, and the whisker mean diameter is 1.265 microns.
Press GB/T 2791-1995, tackiness agent is coated equably on the PVC leatheroid of 200mm * 25mm, hang moments later, involutory gummed bonding plane, mummification under the room temperature (film forming) 72 hours, on XLW-1 smart electronics tension testing machine, carry out T type peel strength test with the speed of 100mm/min.Test value sees Table 1.
Embodiment 2
Under 20 ℃, 100 gram anionic SBS block copolymers are added in the 600ml mixed solvent, the proportioning of mixed solvent is: 120
#Gasoline: acetone=5: 1 (volume ratio), stir after 1.0 hours, anionic SBS block copolymer dissolves fully, add 60 gram terpine resins, 60 gram Gum Rosin and 12g ZnOws then, be warming up to 75 ℃, restir promptly obtained with the whisker modified anionic SBS block copolymer adhesive of inorganic salt in 2 hours.
ZnOw is the T-ZnOw product that Chengdu National Chiao Tung University Jingyu Technology Co produces, the on average long 30 μ m of needles, and root mean diameter 0.5 μ m, outward appearance is loose shape white powder.
Press GB/T 2791-1995, tackiness agent is coated equably on the PVC leatheroid of 200mm * 25mm, hang moments later, involutory gummed bonding plane, mummification under the room temperature (film forming) 72 hours, on XLW-1 smart electronics tension testing machine, carry out T type peel strength test with the speed of 100mm/min.Test value sees Table 1.
Embodiment 3
Under 30 ℃, 100 gram anionic SBS block copolymers are added in the 1200ml mixed solvent, the proportioning of mixed solvent is: 120
#Gasoline: acetone=4: 1 (volume ratio), stir after 2.0 hours, anionic SBS block copolymer dissolves fully, add 60 gram terpine resins, 60 gram Gum Rosin and 8g magnesium sulfate crystal whiskers then, be warming up to 95 ℃, restir promptly obtained with the whisker modified anionic SBS block copolymer adhesive of inorganic salt in 1.5 hours.
Magnesium sulfate crystal whisker is the product of WS-1S for Yingkou Kangru Chemicals Co., Ltd.'s trade mark, and mean diameter is 0.75 μ m, and mean length is the white needles single crystal fibre of 50 μ m.
Press GB/T 2791-1995, tackiness agent is coated equably on the PVC leatheroid of 200mm * 25mm, hang moments later, involutory gummed bonding plane, mummification under the room temperature (film forming) 72 hours, on XLW-1 smart electronics tension testing machine, carry out T type peel strength test with the speed of 100mm/min.Test value sees Table 1.
Embodiment 4
Under 20 ℃, 100 gram anionic SBS block copolymers are added in the 800ml mixed solvent, the proportioning of mixed solvent is: 120
#Gasoline: acetone=2: 1 (volume ratio), stir after 1.5 hours, anionic SBS block copolymer dissolves fully, add 60 gram terpine resins, 60 gram Gum Rosin and 6g calcium sulfate crystal whiskers then, be warming up to 85 ℃, restir promptly obtained with the whisker modified anionic SBS block copolymer adhesive of inorganic salt in 1.0 hours.
Calcium sulfate crystal whiskers is the product of bright East Africa, Luoyang metallic substance scientific and technological development company limited, mean diameter 4.5 μ m, and mean length 125 μ m are palpus shape single crystal that perfect internal structure is arranged.
Press GB/T 2791-1995, tackiness agent is coated equably on the PVC leatheroid of 200mm * 25mm, hang moments later, involutory gummed bonding plane, mummification under the room temperature (film forming) 72 hours, on XLW-1 smart electronics tension testing machine, carry out T type peel strength test with the speed of 100mm/min.Test value sees Table 1.
Table 1
Embodiment |
T type stripping strength (N/m) |
T type stripping strength raising rate (%) |
Comparative Examples 1 |
??476.8 |
?/ |
??1 |
??650.6 |
?36.5 |
??2 |
??670.7 |
?40.6 |
??3 |
??625.3 |
?31.1 |
??4 |
??674.8 |
?41.5 |
Compare with Comparative Examples 1, the T type stripping strength of product of the present invention has raising significantly.