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Inorganic whisker modified SBS segmented copolymer adhesive and preparation method thereof

The technology of block copolymer and inorganic whisker is applied in the field of modified anion polymerized SBS block copolymer adhesive and its preparation, which can solve the problems of poor bonding performance and the like, and achieve improved bonding strength, low cost and high bonding strength. Intensive effect

Inactive Publication Date: 2010-08-11
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current SBS block copolymers have poor bonding performance and cannot meet the needs of related fields.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] At 25°C, add 100 grams of anionic polymerized SBS block copolymer to 400ml of mixed solvent, the ratio of mixed solvent is: 120 # Gasoline: acetone=3:1 (volume ratio), after stirring for 1.5 hours, the anionic polymerized SBS block copolymer is completely dissolved, then add 60 grams of terpene resin, 60 grams of rosin resin and 4 g of silicon carbide whiskers, and heat up to 95 ° C , and then stirred for 1.5 hours to obtain an anionic polymerized SBS block copolymer adhesive modified with inorganic salt whiskers.

[0035] The silicon carbide whiskers are products of Xuzhou Hongwu Nanomaterials Co., Ltd. model beta sic. The average aspect ratio is greater than or equal to 20, and the average diameter of the whiskers is 1.265 microns.

[0036] According to GB / T 2791-1995, apply the adhesive evenly on the 200mm×25mm PVC artificial leather. -1 On the intelligent electronic tensile testing machine, the T-peel strength test is performed at a speed of 100mm / min. The test va...

Embodiment 2

[0038] At 20°C, add 100 grams of anionic polymerized SBS block copolymer to 600ml of mixed solvent, the ratio of mixed solvent is: 120 # Gasoline: acetone=5:1 (volume ratio), after stirring for 1.0 hour, the anionic polymerized SBS block copolymer is completely dissolved, then add 60 grams of terpene resin, 60 grams of rosin resin and 12 g of zinc oxide whiskers, and heat up to 75 ° C , and then stirred for 2 hours to obtain an anion polymerized SBS block copolymer adhesive modified with inorganic salt whiskers.

[0039] Zinc oxide whiskers are T-ZnOw products produced by Chengdu Jiaotong University Jingyu Technology Co., Ltd. The average length of the needles is 30 μm, the average diameter of the roots is 0.5 μm, and the appearance is loose white powder.

[0040] According to GB / T 2791-1995, apply the adhesive evenly on the 200mm×25mm PVC artificial leather. -1 On the intelligent electronic tensile testing machine, the T-peel strength test is performed at a speed of 100mm / mi...

Embodiment 3

[0042] At 30°C, add 100 grams of anionic polymerized SBS block copolymer to 1200ml of mixed solvent, the ratio of mixed solvent is: 120 # Gasoline: acetone=4: 1 (volume ratio), after stirring for 2.0 hours, the anionic polymerized SBS block copolymer is completely dissolved, then add 60 grams of terpene resin, 60 grams of rosin resin and 8 g of magnesium sulfate whiskers, and heat up to 95 ° C , and then stirred for 1.5 hours to obtain an anionic polymerized SBS block copolymer adhesive modified with inorganic salt whiskers.

[0043] The magnesium sulfate whisker is a product of Yingkou Kangru Chemical Co., Ltd. with the brand name WS-1S. It is a white needle-like single crystal fiber with an average diameter of 0.75 μm and an average length of 50 μm.

[0044] According to GB / T 2791-1995, apply the adhesive evenly on the 200mm×25mm PVC artificial leather. -1 On the intelligent electronic tensile testing machine, the T-peel strength test is performed at a speed of 100mm / min. ...

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Abstract

The invention discloses an inorganic whisker modified SBS segmented copolymer adhesive and a preparation method thereof; the adhesive comprises the following components: 100g of SBS segmented copolymer, 60g of terpene resin, 60g of rosin resin, 4-12g of inorganic whisker and 400-1200ml of mixed solvent. In the preparation method of the invention, inorganic whisker modified anion is adopted to polymerize SBS segmented copolymer adhesive and the T type peeling strength is increased by 41.51%, compared with that of the polymerization of SBS segmented copolymer adhesive without using inorganic whisker for modification. The bonding strength of the modified adhesive is increased significantly, the modification process conditions are simple, the cost is low and the application prospect is very wide.

Description

technical field [0001] The invention relates to an adhesive, in particular to a modified anionic polymerized SBS block copolymer adhesive and a preparation method thereof. Background technique [0002] SBS block copolymer is a tri-block copolymer of styrene-butadiene-styrene, which has the dual characteristics of thermoplastic elastomer and vulcanized rubber. The use of anionic polymerized SBS block copolymers in adhesives has the advantages of good elasticity, good toughness, low solution viscosity, low temperature resistance, fast curing, etc., and can produce environmentally friendly adhesives, which has great market potential. [0003] However, the current SBS block copolymers have poor bonding properties and cannot meet the needs of related fields. Contents of the invention [0004] The object of the present invention is to provide a kind of inorganic whisker modified SBS block copolymer adhesive and preparation method thereof, to overcome the above-mentioned defects...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J153/02C09J11/04
Inventor 陈月辉杨淼
Owner SHANGHAI UNIV OF ENG SCI