Light weight PU plate special for passenger vehicle skylight sunshading boards

A lightweight, PU board technology, used in the field of PU foam production for passenger car interiors, can solve the problems of low utilization rate of PU boards, many defective products, and high density, and achieve excellent thermoplasticity, fine and uniform cells, and air permeability. good effect

Active Publication Date: 2016-02-24
YANTAI ZHENGHAI HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a special lightweight PU board for sunroof sun visors of passenger cars, which mainly solves the problems of high density of traditional materials, low utilization rate of PU boards in foaming, and a lot of waste generated. And the problem of many unqualified products in product processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1, accurately weigh soft foam polyether TEP-330NG, polyether 3050, polyether 36 / 28 and polyether TEP-551C45Kg, low viscosity rigid foam polyether TMN-45055Kg, mixed silicone oil L580 and AK88051.2Kg , reactive catalyst DPA and ZF-101.4Kg, blowing agent 6.8Kg, mixed cell opener FK-8300 and A5011.5Kg, antioxidant PUA-1021.8Kg, mixed uniformly to make A component; modified MDI (Full water low density type) 80% and polymeric MDI (PM-600) 20% by weight are mixed uniformly to make component B; component A and 185Kg component B are mixed uniformly with a low-pressure foaming machine and injected The foaming reaction is carried out in the foaming box to make PU semi-rigid large foam blocks, and the plasticized foam blocks are directly sliced ​​to produce lightweight PU boards for passenger car sunroof sunshades.

Embodiment 2

[0018] Example 2, accurately weigh soft foam polyether TEP-330NG, polyether 3050 and polyether TEP-36 / 2835Kg, low viscosity rigid foam polyether TMN-45065Kg, mix silicone oil L580, Y10366 and AK8805 1.0Kg, react Type catalyst DPA1.5Kg, foaming agent 5.0Kg, mixed cell opener FK-8300 and A5011.0Kg, antioxidant PUA-1021.0Kg, mixed evenly to make A component; made of modified MDI (full water low density Type) 80% and polymeric MDI (PM-600) 20% by weight are mixed uniformly to make B component; A component and 165Kg B component are mixed evenly with a low-pressure foaming machine and injected into the foaming box, Foaming becomes PU semi-rigid large foam blocks, and the plasticized foam blocks are directly sliced ​​to produce lightweight PU boards for passenger car sunroof sunshades.

Embodiment 3

[0019] Example 3, accurately weigh 50Kg of soft foam polyether 3050 and polyether TEP-551C, low viscosity rigid foam polyether TMN-45050Kg, mixed silicone oil Y10366 and B8870 2.0Kg, and reactive catalyst ZR-50 and ZF-100.8Kg , foaming agent 7.5Kg, mixed cell opener FK-8300 and A5012.0Kg, antioxidant PUA-1022.5Kg, mixed evenly to make A component; modified MDI (full water low density type) 80% and 20% by weight of polymeric MDI (PM-600) is mixed uniformly to make component B; component A and 190Kg of component B are mixed uniformly with a low-pressure foaming machine and injected into a foaming box to foam into PU semi- The hard large foam blocks and the plasticized foam blocks are directly sliced ​​to produce lightweight PU boards for passenger car sunroof sunshades.

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Abstract

The invention discloses a light weight PU plate special for passenger vehicle skylight sunshading boards. The light weight PU plate is characterized in that it is prepared from the following raw materials by weight: a component A, which is prepared by uniform mixing of 35-50 parts of soft foam polyether, 50-65 parts of low viscosity hard foam polyether, 1-2 parts of mixed silicone oil, 0.8-1.5 parts of a reaction catalyst, 5-7.5 parts of a foaming agent, 1-2 parts of a mixed hole opening agent and 1-2.5 parts of an antioxidant; and 165-190 parts of a component B. The component A and the component B are subjected to foaming reaction to form a PU semi-hard large foam block, and after slicing, the light weight PU plate can be obtained. With a density of 20-22Kg / m<3> and a foam block utilization rate up to 90%, the foam cells are fine and uniform, have high hole opening rate and good air permeability, and can be used for the wet making process of passenger vehicle skylight sunshading boards. The product has the characteristics of light weight, low VOC and high yield.

Description

Technical field: [0001] The invention relates to the technical field of PU foam production for interior decoration of passenger cars, in particular to a special lightweight PU board for sunroof sunshades of passenger cars. Background technique: [0002] At present, the wet process (also known as soft PU method) of the passenger car sunroof sunshade is based on the PU board, and after the double-sided glue is rolled and watered, the non-woven fabric, adhesive film, Glass fiber felt, laying glass fiber felt, adhesive film, decorative fabrics, etc. on the PU board, after hot-pressing compound one-step forming, has the advantages of high production efficiency, no accumulation of semi-finished products, low manufacturing cost, etc., more and more multi-purpose The sunroof sunshade of the car is wet-processed, so the demand for PU boards is also increasing. [0003] In the wet process production of passenger car sunroof sunshade, the density of ordinary PU board is generally 28 ~...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/48C08J9/00C08G101/00
CPCC08G18/4804C08G18/7671C08J9/00C08J2375/08C08G2110/0083
Inventor 盛习民郭焕祥朱维珍董志方尹立健
Owner YANTAI ZHENGHAI HIGH TECH
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