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Lubricant for wood plastic extrusion

A lubricant and wood-plastic technology, applied in the field of lubricants, can solve the problems of high extrusion rate, cracks in molded products, low extrusion rate, etc., and achieve the effect of suppressing cracks

Active Publication Date: 2019-01-15
浙江杰上杰新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing wood-plastic lubricants have the disadvantage that the extrusion rate is low or the molded product will crack when the extrusion rate is high

Method used

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  • Lubricant for wood plastic extrusion

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Experimental program
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Effect test

Embodiment approach

[0021] Amide is a chemical substance. In terms of structure, amides can be regarded as compounds in which the hydroxyl group in the carboxyl group in the carboxylic acid molecule is replaced by amino or hydrocarbon amino (-NHR or -NR2); it can also be regarded as ammonia or amine A compound in which the hydrogen on the nitrogen atom in the molecule is replaced by an acyl group. Except for formamide, which is liquid, other amides are mostly colorless crystals, and aliphatic N-alkyl substituted amides are often liquid. Due to the strong hydrogen bond association ability between amide molecules and the high polarity of amide molecules, their melting and boiling points are even higher than those of carboxylic acids with similar molecular weights. When the hydrogen atom on the amino group is replaced by a hydrocarbon group, the melting and boiling point also decreases due to the reduction of the hydrogen bond association between the molecules. The diamine diamide structure in the ...

Embodiment 1

[0036] 10 parts of stearate, 20 parts of diamine diamide, 1 part of silicone powder, 7 parts of stearic monoanhydride, 13 parts of polypentylthritol stearate; 0.1 part of fluorinated graphite, 1 part of antioxidant The high shear disperser disperses evenly.

[0037] The extrusion rate was measured to be 80 cm / min, the crack grade C was measured after 1 day, the crack grade C was measured after one month, and the crack grade D was measured after one year.

Embodiment 2

[0039] 10 parts of stearate, 20 parts of diamine diamide, 1 part of silicone powder, 7 parts of stearic monoanhydride, 13 parts of polypentylthritol stearate; 0.2 parts of fluorinated graphite, 1 part of antioxidant The high shear disperser disperses evenly.

[0040] The measured extrusion rate was 100 cm / min, and the crack grade B was measured after 1 day, the crack grade C was measured after one month, and the crack grade D was measured after one year.

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Abstract

The invention discloses a lubricant for wood plastic extrusion. The lubricant is composed of the following substances by weight: 3-15 parts of stearate, 20-30 parts of diamine diamide, 1-5 parts of silicone powder, 5-15 parts of monoanhydride stearate, 8-20 parts of polypentaerythritol stearate, 0.1-3 parts of fluorinated graphite and 1-5 parts of an antioxidant. The lubricant of the invention hashigh extrusion rate of a wood plastic material when applied to wood plastic preparation, and the prepared wood plastic material has the excellent characteristic of no generation of cracks when storedfor a long time.

Description

technical field [0001] The invention relates to a lubricant, in particular to a lubricant for wood-plastic extrusion. Background technique [0002] Wood-plastic material refers to the use of recyclable wood powder, bamboo powder or biomass material as the main raw material, using the chemical principle of polymer interface and the characteristics of plastic filling and modification, after processing and forming a kind of recyclable processing and utilization. New Materials. The biggest feature of wood-plastic materials is that it has multiple advantages of two completely different basic materials, natural wood and synthetic plastics. features. At present, the existing wood-plastic floor has the defects of low bending strength, high water absorption, poor low temperature resistance, and poor oxidation resistance, which limits its application range. [0003] Wood-plastic lubricant (Lubricant for WPC) (also known as wood-plastic lubricant) is specially used in the production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08L97/02C08L83/04C08K5/098C08K5/20C08K5/103C08K9/04C08K3/04C08K5/134C08K5/3475C08K5/375
CPCC08K3/04C08K5/098C08K5/103C08K5/1345C08K5/20C08K5/3475C08K5/375C08K9/04C08L83/04C08L97/02C08L101/00C08L2201/08
Inventor 罗李华
Owner 浙江杰上杰新材料股份有限公司