Lubricant for wood-plastic composites as well as preparation method and application lubricant

A wood-plastic composite material and lubricant technology, applied in the field of wood-plastic composite materials, can solve the problems of WPC extrusion processing difficulties, unstable flow, poor product quality, etc., achieve excellent processing lubrication, improve mechanical properties, and simple method Effect

Active Publication Date: 2015-07-22
GUANGZHOU ZAISEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high wood fiber filling content makes WPC extrusion processing difficult, mainly manifested in the appearance of unstable flow and surface tearing.
This leads to poor product quality and low processing effic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1: Preparation of lubricant for wood-plastic composite materials

[0031] (1) Preparation of higher fatty alcohol: add 90g vegetable oil and 10g copper-chromium catalyst to the autoclave, install and seal, heat to 320°C, hydrogen gas for hydrocracking under 8MPa condition, and heat preservation reaction for 5 hours. After the reaction, the oil layer is separated, washed with water, dried, distilled under reduced pressure, and centrifuged to obtain the supernatant to obtain the product higher fatty alcohol.

[0032] (2) Preparation of lubricant for wood-plastic composite materials: 40g of higher fatty alcohol, 25g of paraffin wax, 20g of maleic anhydride and 5g of calcium carbonate prepared above were added to a closed reaction kettle, mixed and stirred, heated to 120°C, added high 10g molecular dispersant (PAA), mixed and reacted for 4 hours under the protection of nitrogen, and cooled to room temperature to obtain a lubricant for wood-plastic composite materials.

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Example Embodiment

[0034] Example 2: Preparation of lubricants for wood-plastic composite materials

[0035] (1) The preparation of higher fatty alcohol is the same as in Example 1.

[0036] (2) Preparation of lubricant for wood-plastic composite materials: 80g of higher fatty alcohol, 5g of paraffin wax, 10g of PE-g-MA and 3g of calcium carbonate prepared above were added to a closed reaction vessel and mixed and stirred, and the temperature was raised to 150°C, Add 2 g of polymer dispersant (PAA), mix and react for 6 hours under the protection of nitrogen, and cool to room temperature to obtain a special lubricant for wood-plastic composite materials.

[0037] (3) Effect: The lubricant for wood-plastic composite materials is applied to PVC wood-plastic composite materials, and the additive amount is 3wt%. The surface of the obtained product is smooth and delicate, the tensile strength is increased by 30%, and the bending strength is increased. 27%.

Example Embodiment

[0038] Example 3: Preparation of lubricant for wood-plastic composite materials

[0039] (1) The preparation of higher fatty alcohol is the same as in Example 1.

[0040] (2) Preparation of lubricant for wood-plastic composite materials: add 50g of higher fatty alcohol, 7g of paraffin wax, 30g of PP-g-MA and 9g of calcium carbonate prepared above into a closed reaction kettle, mixing and stirring, and heating to 200°C, Add 4 g of polymer dispersant (PAA), mix and react for 8 hours under the protection of nitrogen, and cool to room temperature to obtain a special lubricant for wood-plastic composite materials.

[0041] (3) Effect: The lubricant for wood-plastic composite materials is applied to PVC wood-plastic composite materials, the additive amount is 3wt%, the surface of the obtained product is smoother, the tensile strength is increased by 27%, and the bending strength is increased by 25%. %.

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PUM

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Abstract

The invention belongs to the technical field of wood-plastic composites, and discloses a lubricant for wood-plastic composites as well as a preparation method and an application of the lubricant. The lubricant for wood-plastic composites is obtained through the reaction of the following raw materials in parts by weight: 40-80 parts of higher fatty alcohol, 5-25 parts of lubricant, 10-30 arts of maleic anhydride and/or maleic anhydride grafted polymer, and 2-10 parts of polymer dispersant; the higher fatty alcohol is prepared by a method comprising the following steps: hydrocracking vegetable oil for 4-8 hours at 320 DEG C and 8-15 MPa under the catalysis of a copper-chromium catalyst, performing separation to obtain the higher fatty alcohol. According to the invention, the lubricant has functions of coupling agent and lubricant, effectively improves the compatibility between the resin and filler as well as mechanical properties of products, has high temperature lubrication property and low temperature anti-sticking property, can be used in wood-plastic composites to improve the appearance quality, tensile strength and impact strength; in the preparation method, an organic solvent is not used, so that environment protection is achieved.

Description

technical field [0001] The invention belongs to the technical field of wood-plastic composite materials, and in particular relates to a lubricant for wood-plastic composite materials and a preparation method and application thereof. Background technique [0002] Wood-plastic composite (WPC) is a new type of material with new structure and excellent comprehensive performance formed by compounding wood powder or wood fiber and thermoplastic polymer through melt processing. It has good weather resistance, microbial resistance, The advantages of recyclability, biodegradability, and environmental friendliness have shown unique advantages in the fields of construction, furniture, decoration, transportation, and automotive linings, and have developed rapidly. This year, with the depletion of global resources and the increasing awareness of social environment, higher requirements are put forward for the application of wood and petrochemical products. In this context, the wood-plast...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/06C08L23/12C08L25/06C08L55/02C08K13/02C08K5/05C08K5/01C08K5/1539C08K3/26C08L51/06C08L51/00
CPCC08L27/06C08L97/02C08L2205/035C08L91/06C08L33/02C08K5/05C08K5/1539C08K2003/265C08L51/06C08L51/00C08L35/06C08L23/06
Inventor 刘少北
Owner GUANGZHOU ZAISEN NEW MATERIAL TECH CO LTD
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