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Pulp molded skeleton for automobile cavity filling material and preparation method thereof

A filling material and pulp molding technology, which is applied in papermaking, paper, paper coating, etc., can solve the problems of reducing the weight of the whole vehicle and the quality of filling materials for automobiles, and achieve the effect of simple processing technology and high strength

Active Publication Date: 2020-03-06
天津市浩迪橡塑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the filling material widely used in automobiles is PA66+EVA (the skeleton is made of PA66, and the foam filling material is made of EVA). The density of PA66 is 1.1-1.2g / cm3, and the amount of PA66 used in the filling material can reach 60- 70%, if the PA66 frame is replaced by another material that is lighter and has all the characteristics of PA66, the quality of the car filling material can be greatly reduced, thereby reducing the weight of the vehicle

Method used

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  • Pulp molded skeleton for automobile cavity filling material and preparation method thereof
  • Pulp molded skeleton for automobile cavity filling material and preparation method thereof
  • Pulp molded skeleton for automobile cavity filling material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of pulp molded skeleton that is used for automobile cavity filling material, preparation method comprises the following steps:

[0034] 1 Crushing raw materials: 100 kg of recovered waste paper is pulverized and ground to obtain pulp fibers. Then pour the pulp cellulose into the beater, then add deionized water, stir for 30-40 minutes, and after stirring, let it stand at room temperature for 25 minutes to obtain a uniformly mixed liquid.

[0035] 2 Mixing: Add 10kg of starch, 2kg of 4% polyvinyl alcohol solution, 3kg of 6% aqueous acrylic resin solution, 1000kg of deionized water, 50kg of rosin, 30kg of neoprene latex, 0.6kg of polymethylhydrogen siloxane, etc. into the mixed liquid The raw materials are stirred in a beater for 30-40 minutes, and mixed evenly to obtain a secondary mixed liquid.

[0036] 3 Compression molding: Under the conditions of a molding machine at 100°C and 20 minutes, the secondary mixed liquid is molded through a water mold to form a pre...

Embodiment 2

[0048] A kind of pulp molded skeleton that is used for automobile cavity filling material, preparation method comprises the following steps:

[0049] 1 Crushing raw materials: 100 kg of recovered waste paper is pulverized and ground to obtain pulp fibers. Then pour the pulp cellulose into the beater, then add deionized water, stir for 30-40 minutes, and after stirring, let it stand at room temperature for 25 minutes to obtain a uniformly mixed liquid.

[0050] 2 Mixing: Add 15kg of starch, 3kg of 4% polyvinyl alcohol solution, 4kg of 6% water-based acrylic resin solution, 1000kg of deionized water, 60kg of rosin, 40kg of neoprene latex, 1kg of dimethyl silicone oil and other raw materials into the mixed liquid in the beater Stir in medium for 30-40min, and mix evenly to obtain secondary mixed liquid.

[0051] 3 Compression molding: Under the conditions of a molding machine at 100°C and 20 minutes, the secondary mixed liquid is molded through a water mold to form a preliminary...

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Abstract

The invention relates to a paper pulp molding framework used for a vehicle cavity filling material and a preparation method of the framework. The framework is prepared from, by weight, 100 parts of paper pulp, 10,000 parts of deionized water, 80-100 parts of sizing agent, 10-15 parts of tackifier, 2-3 parts of 4% polyvinyl alcohol solution, 3-4 parts of 6% water-based acrylic resin solution and 0.6-1 part of waterproof agent. The paper pulp molding framework is high in strength, waterproof and resistant to oil, can perfectly substitute an existing PA66 framework and has the advantages of beingsimple in machining process, cheap, lightweight and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of foaming materials for filling automobile cavities, and relates to a pulp molding framework for filling materials for automobile cavities and a preparation method thereof. Background technique [0002] With the increasing emphasis on environmental protection year by year, all industries have joined the environmental protection team of "lucid waters and lush mountains are golden mountains and silver mountains". Of course, the automobile industry is no exception. Although the automobile industry currently has various environmental protection standards to control, However, the biggest pollution source of automobiles is not the VOC release of various parts, but the emission of automobile exhaust. How to reduce automobile exhaust emissions without reducing power has become a major research direction. The lightweight of the whole vehicle is the most effective way to reduce exhaust emissions without reducing power. At pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21J3/00D21H11/14D21H17/28D21H17/36D21H17/37D21H17/62D21H17/46D21H21/16D21H19/14C08J9/10C08L23/08C08K3/26B29C44/12B29C44/34
CPCB29C44/1266B29C44/3442C08J9/0066C08J9/105C08J2203/04C08J2323/08D21H11/14D21H17/28D21H17/36D21H17/37D21H17/46D21H17/62D21H19/14D21H21/16D21J3/00
Inventor 肖焰王庆凯郎博李和平倪备郑彦明李博
Owner 天津市浩迪橡塑科技有限公司
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