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Preparation method of epoxy soybean oil compatilizer for polyolefin composite material

A technology of epoxy soybean oil and composite materials, which is applied in the field of preparation of epoxy soybean oil compatibilizers for polyolefin composite materials, and achieves the effects of less environmental pollution, strong applicability, and good processing performance

Active Publication Date: 2016-10-12
唐桂珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the natural renewable resource-epoxidized soybean oil as the main raw material, a compatibilizer for polyolefin composites is prepared by free radical polymerization to improve the interfacial compatibility and bond strength between polyolefin and light calcium carbonate. Literature report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) In the four-necked flask equipped with electric stirring, thermometer, reflux condenser, nitrogen device, add 30g epoxy soybean oil acrylate, 8g styrene, 1g maleic anhydride and 40ml toluene, then after logical nitrogen 30min, Add 1g of BPO initiator and react at 80-85°C for 3h. After cooling to room temperature, add 4g of dried polyethylene glycol (PEG-800) and 0.5g of p-toluenesulfonic acid, react at 60-70°C for 6h, and then distill off the toluene in the system under reduced pressure to obtain a light yellow viscous The liquid is the modified epoxy soybean oil compatibilizer of the present invention.

[0019] (2) Take by weighing 150g polypropylene, 100g light calcium carbonate and the epoxy soybean oil compatibilizer (accounting for 3wt%) that 6g present embodiment makes, use pulverizer to stir it, send to twin-screw extruder pellets, and then use a vertical injection machine to inject the pellets into a polypropylene / calcium carbonate composite material modifi...

Embodiment 2

[0022] (1) In a four-necked flask equipped with an electric stirrer, a thermometer, a reflux condenser, and a nitrogen device, add 40g of epoxy soybean oil acrylate, 9g of styrene, 1.2g of maleic anhydride and 45ml of toluene, and then pass nitrogen for 30min. , add 1.3g BPO initiator, and react at 80-85°C for 3h. After cooling to room temperature, add 5g of dried polyethylene glycol (PEG-1000) and 0.5g of p-toluenesulfonic acid, react at 60-70°C for 6h, then distill off the toluene in the system under reduced pressure to obtain a light yellow viscous The liquid is the modified epoxy soybean oil compatibilizer of the present invention.

[0023] (2) Take by weighing 150g polypropylene, 100g light calcium carbonate and the epoxy soybean oil compatibilizer (accounting for 3wt%) that 6g present embodiment makes, use pulverizer to stir it, send to twin-screw extruder pellets, and then use a vertical injection machine to inject the pellets into a polypropylene / calcium carbonate com...

Embodiment 3

[0026] (1) In a four-necked flask equipped with an electric stirrer, a thermometer, a reflux condenser, and a nitrogen device, add 45g of epoxy soybean oil acrylate, 10g of styrene, 1.5g of maleic anhydride and 45ml of toluene, and then pass nitrogen for 30min. , add 1.4g BPO initiator, and react at 80-85°C for 3h. After cooling to room temperature, add 6g of dried polyethylene glycol (PEG-1500) and 0.5g of p-toluenesulfonic acid, react at 60-70°C for 6h, then distill off the toluene in the system under reduced pressure to obtain a light yellow viscous The liquid is the modified epoxy soybean oil compatibilizer of the present invention.

[0027] (2) Take by weighing 150g polypropylene, 100g light calcium carbonate and the epoxy soybean oil compatibilizer (accounting for 3wt%) that 6g present embodiment makes, use pulverizer to stir it, send to twin-screw extruder pellets, and then use a vertical injection machine to inject the pellets into a polypropylene / calcium carbonate co...

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Abstract

The invention provides a preparation method of an epoxy soybean oil compatilizer for a polyolefin composite material. Epoxy soybean oil acrylate serves as a main raw material; a soybean oil-styrene-maleic anhydride copolymer is prepared by changing the consumption of the styrene, the maleic anhydride and polyethylene glycol and using a free radical polymerization method; the polymer can serve as a compatilizer of a polyolefin / calcium carbonate composite material. Since soybean oil and polyethylene glycol long flexible chain contained in the copolymer play a role of compatibilizing polyolefin, and carboxyl and hydroxyl in a copolymer molecule play a role of anchoring polar hydroxyl on the surface of calcium carbonate powder, so that interfacial compatibility and bonding strength of the polyolefin and the calcium carbonate can be effectively improved, further the rigidity and the toughness of the composite material are improved, and the requirements of engineering materials can be met. The method has the advantages of simple process, low cost, low environmental pollution, high applicability, easiness for large-scale popularization and application and the like; the prepared polyolefin composite material is widely applied to the fields of pipes, plates, various formed products, wires and cables, package, automobiles, machinery, daily groceries and the like.

Description

technical field [0001] The invention relates to a method used in the technical field of composite materials, in particular to a method for preparing an epoxy soybean oil compatibilizer for polyolefin composite materials. Background technique [0002] Polyolefin (such as polypropylene, polyethylene and polyvinyl chloride, etc.) is a widely used thermoplastic, which has many excellent properties, but poor impact toughness and low dimensional stability, especially at room temperature and low temperature, making it Application is limited. Adding CaCO to Polyolefin Plastics 3 , talcum powder, wollastonite, mica and glass fiber (GF) and other fillers can not only reduce costs, improve material rigidity, hardness, heat resistance, and dimensional stability and creep resistance of products, but also give materials Such as improving flame retardancy, conductive function and other special properties. However, the polarity difference between the plastic and the filler is large, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F289/00C08F212/08C08F222/08C08L23/12C08L51/00C08K3/26
CPCC08F289/00C08L23/12C08F212/08C08L51/00C08K2003/265
Inventor 施存贵陆绍荣冼致欣杨晓明
Owner 唐桂珍
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