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High-rigidity creep-resistant long-fiber-reinforced master batch for wood plastic products, and preparation and mold thereof

A technology for wood-plastic products and reinforced masterbatch, which is applied in the field of creep-resistant long-fiber reinforced masterbatch and its preparation, high rigidity for wood-plastic products, and impregnated molds, which can solve the complexity of brittle fracture, wood formation, and weight structure design Processing, safety hazards and other issues, to achieve the effect of reducing deformation, improving application performance and long-term use stability, and increasing flexural modulus and strength

Active Publication Date: 2015-02-18
GUANGZHOU ZAISEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is necessary to repeatedly withstand certain external forces, such as doors, windows, railings, etc., it is necessary to use a metal lining inside the WPC to increase the strength, which will cause problems such as wood, weight, structural design complexity, and processing.
What's more serious is that when the creep of WPC material reaches a certain level, sudden brittle fracture will occur, causing serious safety hazards.

Method used

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  • High-rigidity creep-resistant long-fiber-reinforced master batch for wood plastic products, and preparation and mold thereof
  • High-rigidity creep-resistant long-fiber-reinforced master batch for wood plastic products, and preparation and mold thereof
  • High-rigidity creep-resistant long-fiber-reinforced master batch for wood plastic products, and preparation and mold thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: Preparation of long-fiber-reinforced masterbatch for high-rigidity, creep-resistant wood-plastic products

[0035] Such as figure 1 As shown, an impregnation mold includes a melt input flow channel 1; a fiber bundle inlet channel 2; a fiber bundle preheating sleeve 7; a melt impregnation chamber 3; a dot matrix tension roller 4; The melt impregnates the chamber cavity 6 .

[0036] a. Continuously introduce 30Kg glass fiber (362, Jushi Fiber Factory) into the mold cavity of the fiber impregnation mold after being preheated by the fiber bundle preheating sleeve 7, and the fiber bundle enters the melt impregnation chamber 3 through the fiber bundle inlet channel 2;

[0037] b. After premixing 65Kg polypropylene (V30G, Hainan Petrochemical), 0.5Kg KH-550, 5Kg polypropylene grafted maleic anhydride, 0.2Kg antioxidant 1010, and 0.1Kg antioxidant 168 in the mixer , added to the extruder to mix and melt into a melt, the melt enters the melt impregnation chamber 3 t...

Embodiment 2

[0039] Example 2: Preparation of long-fiber-reinforced masterbatch for high-rigidity, creep-resistant wood-plastic products

[0040] Such as figure 1 As shown, an impregnation mold includes a melt input flow channel 1; a fiber bundle inlet channel 2; a fiber bundle preheating sleeve 7; a melt impregnation chamber 3; a dot matrix tension roller 4; The melt impregnates the chamber cavity 6 .

[0041] a. Continuously introduce 30Kg glass fiber (362, Jushi Fiber Factory) into the mold cavity of the fiber impregnation mold after being preheated by the fiber bundle preheating sleeve 7, and the fiber bundle enters the melt impregnation chamber 3 through the fiber bundle inlet channel 2;

[0042] b. After premixing 65Kg nylon 6 (YH800, Yueyang Petrochemical), 0.5Kg KH-550, 5Kg POE-g-MAH, 0.2Kg antioxidant 1010, and 0.1Kg antioxidant 168 in the mixer, Add the extruder to mix and melt into a melt, and the melt enters the melt impregnation chamber 3 through the melt input channel 1 and...

Embodiment 3

[0044] Example 3: Preparation of long-fiber reinforced masterbatch for high-rigidity, creep-resistant wood-plastic products

[0045] Such as figure 1 As shown, an impregnation mold includes a melt input flow channel 1; a fiber bundle inlet channel 2; a fiber bundle preheating sleeve 7; a melt impregnation chamber 3; a dot matrix tension roller 4; The melt impregnates the chamber cavity 6 .

[0046] a. Continuously introduce 30Kg glass fiber (362, Jushi Fiber Factory) into the mold cavity of the fiber impregnation mold after being preheated by the fiber bundle preheating sleeve 7, and the fiber bundle enters the melt impregnation chamber 3 through the fiber bundle inlet channel 2;

[0047] b, the acrylic anhydride grafted ethylene elastomer of 65Kg of PBT (1100, Changchun, Taiwan), 0.5Kg of KH-550, 5Kg, 0.2Kg of antioxidant 1076, 0.1Kg of antioxidant 168 in the mixer. After mixing, add the extruder to mix and melt to form a melt, and the melt enters the melt impregnation cham...

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Abstract

The invention belongs to the technical field of preparation of long-fiber-reinforced master batches, and particularly relates to a high-rigidity creep-resistant long-fiber-reinforced master batch for wood plastic products and a preparation method thereof, and an impregnation mold for the preparation method. The master batch comprises the following components in percentage by mass: 35-80% of thermoplastic, 10-55% of fiber bundle, 0.3-3% of surface treating agent, 5.5-9.2% of compatilizer and 0.5-1.5% of antioxidant. By adopting the specific thermoplastic, compatilizer and other materials and utilizing the specific impregnation mold, the long fiber bundle is sufficiently impregnated in the master batch so as to lower the porosity and provide impregnation effect, and thus, the master batch has higher rigidity and creep resistance. After being added into the wood plastic profile product, the master batch enhances the bending modulus, strength and creep resistance, and can perform the function of reducing deformation in the profile use process, so that the application performance and long-term usage stability of the obtained WPC profile are improved.

Description

technical field [0001] The invention belongs to the technical field of long glass fiber reinforced masterbatch preparation, and in particular relates to a high rigidity and creep-resistant long fiber reinforced masterbatch for wood-plastic products, a preparation method thereof and a dipping mold used in the preparation method. Background technique [0002] Wood Plastics Composites (WPC for short) is formed by mixing wood powder or plant fibers with thermoplastic polymers such as polyethylene, polyvinyl chloride, and polypropylene in a certain proportion, and forming them through extrusion, injection molding, and pressing. It is a new type of product material with new structure and excellent comprehensive performance. It has dual characteristics of wood and plastic, and its goal is to replace traditional materials such as solid wood, composite wood, plastic profiles, and aluminum alloy profiles. In the past ten years, the research and development of wood-plastic composite ma...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08L77/02C08L67/02C08K13/04C08K7/14C08J3/22C08L23/00C08L97/02B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92C08J3/226C08J2397/02C08J2423/12C08J2467/02C08J2477/02C08K2201/004C08L23/12C08L67/02C08L77/02C08L2205/025C08L51/06C08K13/04C08K7/14C08K5/1345C08K5/526C08K5/544
Inventor 朱建一
Owner GUANGZHOU ZAISEN NEW MATERIAL TECH CO LTD
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