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Method for preparing lubricant for wood-plastic composites with illegal cooking oil

A technology of gutter oil and lubricant, which is applied in the fields of chemical production and material preparation, can solve the problems of expensive raw materials, high manufacturing costs, and increased production costs of wood-plastic composite materials, and achieve simple reactions, low production costs, and improved mechanical properties Effect

Inactive Publication Date: 2012-06-20
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the commonly used lubricants for wood-plastic mainly include Honeywe11's OptiPak series, Struktol's Tpw series, Koery's Westrchem series, etc. These lubricants are expensive in raw materials and high in manufacturing costs, which will greatly increase the wood-plastic composite material. Cost of production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) be that 7.1% acrylic acid is dissolved in the lauryl hydroxy stearic acid of 22.1% by mass percent, add in the reactor, add the catalyzer tin protochloride that mass percent is 0.7%, in N 2 Under protection, after reacting at 120° C. for 4 hours, an esterified product was obtained.

[0019] (2) adding 60% waste oil by mass percentage and 9.1% polyethylene polyamine to the esterification product obtained in step (1), raising the temperature to 160° C., adding 1.0% by mass percentage to initiate polyaddition reaction agent cyclohexanone peroxide, in N 2 Under protection, mix and react for 6 hours, cool to room temperature, and obtain a light yellow oily liquid, which is the lubricant product. When it is added to wood-plastic composite material, the processing fluidity is good. When the added amount is 0.5wt% of wood powder, the impact strength and bending strength are increased by 21% and 24% respectively.

Embodiment 2

[0021] (1) be that 11% acrylic acid is dissolved in the lauryl hydroxy stearic acid of 32.5% by mass percentage, add in the reactor, add the catalyzer p-toluenesulfonic acid that mass percentage is 1.1%, in N 2 Under protection, after reacting at 130° C. for 5 hours, an esterified product was obtained.

[0022] (2) Adding 40% waste oil by mass percentage and 14.1% polyethylene polyamine to the esterification product obtained in step (1), raising the temperature to 180°C, adding 1.3% by mass to initiate polyaddition reaction agent methyl ethyl ketone peroxide, in N 2 Under protection, mix and react for 6 hours, cool to room temperature, and obtain a light yellow oily liquid, which is the lubricant product. When it is added to wood-plastic composite materials, the processing fluidity is very good. When the amount of addition is 0.5wt% of wood powder, the impact strength and bending strength are increased by 27% and 26% respectively.

Embodiment 3

[0024] (1) be 13.4% acrylic acid to be dissolved in the lauryl hydroxy stearic acid of 38.3% by mass percentage, add in the reactor, add the catalyzer p-toluenesulfonic acid of 1.3% by mass percentage, in N 2 Under protection, after reacting at 140° C. for 5 hours, an esterified product was obtained.

[0025] (2) 30% waste oil by mass percentage and 15.6% polyethylene polyamine by mass percentage are added in the esterification product obtained in step (1), the temperature is raised to 170°C, and 1.4% mass percentage is added to initiate polyaddition reaction agent cyclohexanone peroxide, in N 2 Under protection, mix and react for 8 hours, cool to room temperature, and obtain a viscous light yellow oily liquid, which is the lubricant product. When it is added to wood-plastic composite materials, the processing fluidity is better. When the added amount is 0.5wt% of wood powder, the impact strength and bending strength are increased by 20% and 16% respectively.

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Abstract

The invention discloses a method for preparing lubricant for wood-plastic composites with illegal cooking oil, which includes the steps of dissolving acrylic acid into 12-hydroxystearic acid prior to adding into a reaction kettle with catalyst, and obtaining an esterification product by means of reaction for 2-6 hours at the temperature ranging from 100 DEG C to 150 DEG C under the protection of N2 (nitrogen); and adding the illegal cooking oil and polyethylene polyamine into the esterification product, heating up to the temperature ranging from 100 DEG C to 200 DEG C, adding addition polymerization initiator, carrying out hybrid reaction for 2-10 hours under the protection of N2 and cooling to the room temperature so that faint yellow oily liquid, namely the lubricant, is obtained. The catalyst is one of stannous chloride and para-toluenesulfonic acid, and the initiator is one of cyclohexanone peroxide and methyl ethyl ketone peroxide. The method is low in production cost and simple in reaction, and by the aid of the obtained lubricant, liquidity of blend can be improved, compatibility among inorganic filler, wood powder and plastics is improved, so that mechanical property of the manufactured wood-plastic composites is enhanced.

Description

Technical field: [0001] The invention relates to a method for preparing a lubricant for wood plastics by using waste oil, and belongs to the fields of chemical production and material preparation. Background technique: [0002] Wood-plastic composites (Wood-Plastic Composites, WPC) is a new type of composite material that has been booming at home and abroad in recent years. It refers to the use of polyethylene, polypropylene and polyvinyl chloride, etc. Wood flour, rice husk, straw and other waste plant fibers are mixed into new wood materials, and then processed by extrusion, molding, injection molding and other plastic processing techniques to produce boards or profiles. [0003] Since the main component of wood flour is cellulose, which contains a large number of hydroxyl groups and has strong polarity; while most thermoplastics are non-polar and hydrophobic, the compatibility between the two is poor, and the interface The cohesion is very small, and lubricants can impro...

Claims

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Application Information

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IPC IPC(8): C08F220/68C08F226/02C08F220/28C08L33/14C08L97/02
Inventor 陆绍荣郭栋刘括罗崇禧李善荣
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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