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A kind of inorganic-organic hybrid microsphere anti-bonding masterbatch

An organic hybrid, anti-adhesion technology, applied in the field of inorganic-organic hybrid microsphere anti-adhesion masterbatch, can solve the problems of low effective content, anti-adhesion particles falling off, large dosage, etc. Compatibility, wide application effect

Active Publication Date: 2020-02-21
SHANTOU BEST SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is that, for the prior art, inorganic anti-adhesive agents and organic anti-adhesive agents each have advantages and disadvantages, and cannot meet the requirements of anti-adhesive efficiency and temperature resistance at the same time, or the product film has poor optical properties and anti-adhesive properties. Particles fall off and other problems, and all have the disadvantages of low effective content and large dosage. An inorganic-organic hybrid microsphere anti-adhesive masterbatch is provided, which combines the advantages of inorganic and organic anti-adhesive masterbatches, and the anti-adhesive efficiency High, good dispersion, good temperature resistance, the effective content can be increased to 20%

Method used

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  • A kind of inorganic-organic hybrid microsphere anti-bonding masterbatch
  • A kind of inorganic-organic hybrid microsphere anti-bonding masterbatch
  • A kind of inorganic-organic hybrid microsphere anti-bonding masterbatch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Choose silica with a particle size of 0.5-5um, and make the coupling agent γ-aminopropyltrimethoxysilane C in a solution of ethanol:water specific gravity 1:2 6 H 17 NO 3 Si grafted on silica SiO 2 On the surface, control the temperature at 25℃, react for 2h to obtain modified SiO particles 2 -C 5 H 14 NO 3 Si; then put in methacrylic acid H 2 CC(CH 3 ) COOH and persulfate, as well as crosslinking agent ethylene glycol dimethacrylate, raise the temperature to 80℃, and modify the particulate SiO 2 -C 5 H 14 NO 3 Si and persulfate form an oxidation-reduction system, methacrylic acid H 2 CC(CH 3 )COOH in SiO 2 -C 5 H 14 NO 3 The polymerization reaction on the Si surface wraps the SiO 2 -C 5 H 14 NO 3 Si, react for 8h to form inorganic-organic hybrid microsphere SiO 2 -O-Si(OCH 3 ) 2 -(CH 2 ) 3 -NH[-CH 2 CCH 3 (COOH)-] n ; After filtering and drying; Among them, methacrylic acid H 2 CC(CH 3 ) The quality of COOH is modified particulate SiO 2 -C 5 H 14 NO 3 The mass of Si is 1%, ...

Embodiment 2

[0057] Choose silica with a particle size of 0.5-10um, and make the coupling agent γ-aminopropyltrimethoxysilane C in a solution of ethanol:water specific gravity 1:1 5 H 14 NO 3 Si grafted on silica SiO 2 On the surface, control the temperature at 40℃ and react for 2h to obtain modified particulate SiO 2 -C 5 H 14 NO 3 Si; then put in methacrylic acid H 2 CC(CH 3 ) COOH and persulfate, as well as crosslinking agent ethylene glycol dimethacrylate, raise the temperature to 80℃, and modify the particulate SiO 2 -C 5 H 14 NO 3 Si and persulfate form an oxidation-reduction system, methacrylic acid H 2 CC(CH 3 )COOH in SiO 2 -C 5 H 14 NO 3 The polymerization reaction on the Si surface wraps the SiO 2 -C 5 H 14 NO 3 Si, react for 8h to form inorganic-organic hybrid microsphere SiO 2 -O-Si(OCH 3 ) 2 -(CH 2 ) 3 -NH[-CH 2 CCH 3 (COOH)-] n ; After filtering and drying; Among them, methacrylic acid H 2 CC(CH 3 ) The quality of COOH is modified particulate SiO 2 -C 5 H 14 NO 3 The mass of Si i...

Embodiment 3

[0064] Choose silica with a particle size of 0.5-10um, and make the coupling agent γ-aminopropyltrimethoxysilane C in the ethanol:water ratio 2:1 solution 5 H 14 NO 3 Si grafted on silica SiO 2 On the surface, control the temperature at 50℃ and react for 2h to obtain modified particulate SiO 2 -C 5 H 14 NO 3 Si; then put in methacrylic acid H 2 CC(CH 3 ) COOH and persulfate, as well as crosslinking agent ethylene glycol dimethacrylate, raise the temperature to 80℃, and modify the particulate SiO 2 -C 5 H 14 NO 3 Si and persulfate form an oxidation-reduction system, methacrylic acid H 2 CC(CH 3 )COOH in SiO 2 -C 5 H 14 NO 3 The polymerization reaction on the Si surface wraps the SiO 2 -C 5 H 14 NO 3 Si, react for 8h to form inorganic-organic hybrid microsphere SiO 2 -O-Si(OCH 3 ) 2 -(CH 2 ) 3 -NH[-CH 2 CCH 3 (COOH)-] n ; After filtering and drying; Among them, methacrylic acid H 2 CC(CH 3 ) The quality of COOH is modified particulate SiO 2 -C 5 H 14 NO 3 The mass of Si is 10%, the m...

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Abstract

The invention discloses inorganic-organic hybrid microsphere anti-cohesion master batch, belongs to the field of functional polymer materials and mainly overcomes defects caused due to single use of inorganic anti-cohesion agents or organic anti-cohesion agents at present. Inorganic-organic hybrid microspheres are taken as the anti-cohesion agent and are mainly prepared from components in parts by weight as follows: 80-110 parts of polypropylene, 0.1-20 parts of inorganic-organic hybrid microspheres and 0.1-1 part of an antioxidant. The inorganic-organic hybrid microspheres are formed by polymerizing high polymers on the surfaces of spherical silicon dioxide particles and have the molecular formula being SiO2-O-Si(OCH3)2-(CH2)3-NH[-CH2CCH3(COOH)-]n, and n ranges from 10 to 100. The content and uniform dispersion of the anti-cohesion agent are effectively controlled through preparation by a special double-screw extruder with a precision weight loss scale process, and the effective content can be increased to 20% from 5%.

Description

Technical field [0001] The invention relates to the field of functional polymer materials, and mainly relates to an inorganic-organic hybrid microsphere anti-bonding master batch. Background technique [0002] Conventional anti-adhesive usually choose inorganic or organic anti-adhesive, and its effective content is usually low, 1-8%. Inorganic anti-adhesives, such as synthetic silica, diatomaceous earth, talc, etc., have the advantages of high anti-adhesive efficiency and good temperature resistance, but usually have high hardness, serious wear on equipment, and poor dispersion , Easy to agglomerate, low effective content of inorganic anti-bonding masterbatch, poor optical properties of the film, high film haze, generally used for low-end films. Organic anti-adhesive masterbatches, such as polystyrene microspheres, polymethyl acrylate microspheres, polycarbonate microspheres, silicone microspheres, etc., have a very good bond with the resin matrix, are not easy to agglomerate, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08K9/10C08K7/18
CPCC08K7/18C08K9/10C08K2201/003C08L23/12C08L23/14
Inventor 李素英杨波王大鹏刘小珊
Owner SHANTOU BEST SCI & TECH
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