Antibacterial scratch-resistant thermoplastic elastomer composition and preparation method thereof

A thermoplastic elastomer and composition technology, which is applied in the field of antibacterial and scratch-resistant thermoplastic elastomer compositions and the preparation thereof, can solve the problems of easy mildew, poor surface scratch resistance, and insufficient adhesion, and achieves strong adhesion. , The effect of high surface gloss and excellent antibacterial properties

Inactive Publication Date: 2014-09-17
GUANGDONG KINGREAT HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing thermoplastic elastomers or materials based on thermoplastic elastomers still have insufficient adhesion, poor surface scratch resistance, and easy mildew, which have caused serious problems for their popularization and application in certain fields. big constraints

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In the present embodiment, the preparation method of the antibacterial and scratch-resistant thermoplastic elastomer composition comprises the following steps in sequence:

[0023] (1) Raw materials with the following weight ratio: 15% styrene-based thermoplastic elastomer (both are styrene-ethylene-butylene-styrene block copolymers, with a styrene content of 32% (weight) and a molecular weight of 220,000, its molecular structure is a linear structure), plasticizer 39% (both naphthenic oil), polypropylene 7.3%, polyolefin thermoplastic elastomer 1.22%, inorganic minerals 36.4% (both calcium carbonate), phase Container 0.78% (both PP-g-MAH), antibacterial agent 0.1% (both nano-silver), additives 0.2% (of which 0.1% is antioxidant 1010, and the other 0.1% is stearate).

[0024] (2) Add styrene-based thermoplastic elastomer and plasticizer into a high-speed mixer, and mix at a speed of 450 rpm, so that the plasticizer is fully absorbed by the styrene-based thermoplastic el...

Embodiment 2

[0030] In the present embodiment, the preparation method of the antibacterial and scratch-resistant thermoplastic elastomer composition comprises the following steps in sequence:

[0031] (1) Raw materials with the following weight ratio: 25% styrene-based thermoplastic elastomers (both are styrene-butylene-styrene block copolymers, with a styrene content of 30% (by weight) and a molecular weight of 250,000 , its molecular structure is linear structure), plasticizer 33.6% (both white mineral oil), polypropylene 10%, polyolefin thermoplastic elastomer 0.5%, inorganic mineral 30% (20% of which is white smoke, and the other 10% % is transparent powder), compatibilizer 0.6% (both SEBS-g-MAH), antibacterial agent 0.2% (both nano-silver), additives 0.1% (both antioxidant 1010).

[0032] (2) Add styrene-based thermoplastic elastomer and plasticizer into a high-speed mixer, and mix at a speed of 400 rpm, so that the plasticizer is fully absorbed by the styrene-based thermoplastic elas...

Embodiment 3

[0038] In the present embodiment, the preparation method of the antibacterial and scratch-resistant thermoplastic elastomer composition comprises the following steps in sequence:

[0039](1) Raw materials with the following weight ratio: 20.03% styrene-based thermoplastic elastomer (both are styrene-ethylene-butylene-styrene block copolymers, the styrene content is 35% (weight), and the molecular weight is 240,000, its molecular structure is linear structure), plasticizer 40% (20% of which is naphthenic oil, and the other 20% is white mineral oil), polypropylene 6%, polyolefin thermoplastic elastomer 2%, inorganic minerals 31% (both calcium carbonate), 0.9% compatibilizer (of which 0.6% is PP-g-MAH, and the other 0.3% is SEBS-g-MAH), 0.06% antibacterial agent (both are nano-silver), additives 0.01 % (both oleic acid amide).

[0040] (2) Add styrene-based thermoplastic elastomer and plasticizer into a high-speed mixer, and mix at a speed of 500 rpm, so that the plasticizer is ...

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Abstract

The invention relates to an antibacterial scratch-resistant thermoplastic elastomer composition which is prepared from the following raw materials by weight percent: 15-25% of styrene thermoplastic elastomer, 25-40% of plasticizer, 6-10% of polypropylene, 0.5-2% of polyolefin thermoplastic elastomer, 30-40% of inorganic mineral, 0.6-0.9% of compatilizer, 0.06-0.2% of antibacterial agent, and 0.01-0.2% of additive. The invention also provides a preparation method for the antibacterial scratch-resistant thermoplastic elastomer composition. The thermoplastic elastomer composition has excellent antibacterial performance and surface scratch resistance as well as strong adhesive force, is kept attractive for long, and can be tightly bonded on the matrix in secondary forming, and the product made of the thermoplastic elastomer composition has a function of resisting bacteria and mould. The thermoplastic elastomer composition can be used for secondary forming (such as, rubber coating of tooth brushes, tool handles and the like), or can be used for forming alone (such as manufacturing bottle plugs).

Description

technical field [0001] The invention relates to a polymer compound composition, in particular to an antibacterial and scratch-resistant thermoplastic elastomer composition and a preparation method thereof. Background technique [0002] Thermoplastic Elastomer (TPE for short) is a material that has the high elasticity, high strength and high resilience of rubber, and has the characteristics of injection molding processing, that is to say, it has the processing performance of thermoplastics and vulcanized rubber at the same time. physical properties. Thermoplastic elastomers are environmentally friendly, non-toxic, safe, have excellent colorability, soft touch, good weather resistance, fatigue resistance and temperature resistance, excellent processing performance, and can be recycled to reduce use costs. In addition, no vulcanization is required in the production process of thermoplastic elastomers, which greatly simplifies the production process and reduces energy consumpti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/12C08K13/02C08K3/26C08K5/01C08K3/08B29C47/92B29C48/92
CPCB29B7/728B29B9/12B29B7/46B29B9/06B29C47/92B29B7/72B29C2947/92266B29C48/40B29C48/92B29C2948/92266B29C2948/9259B29C2948/92704
Inventor 周荣智丁亮
Owner GUANGDONG KINGREAT HITECH
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