Method for testing hot bonding strength of PVC (polyvinyl chloride) plastic layer

A testing method and plastic layer technology, applied in the direction of measuring devices, analysis materials, instruments, etc., can solve the problems of low accuracy, complicated operation, and inability to quantitatively measure the bonding strength between layers, achieving high accuracy and simple instrument configuration , the effect of mild test conditions

Pending Publication Date: 2022-04-29
百尔罗赫新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the existing test methods cannot accurately measure the bonding strength between layers, and the accuracy is low and the operation is complicated

Method used

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  • Method for testing hot bonding strength of PVC (polyvinyl chloride) plastic layer

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Experimental program
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Embodiment 1

[0033] In this embodiment, the thermal bonding strength between two PVC plastic layers with different formulations is tested by using a test method for thermal bonding strength of PVC plastic layers. Wherein, the specific steps are as follows;

[0034] S1: Accurately configure the PVC plastic layer premix according to the accurate formula in Table 1, and mix them uniformly:

[0035] The formula of PVC plastic layer in the embodiment 1 of table 1

[0036] Component / Formulation 1# 2# PVC resin part 1 100 75 PVC resin parts 2 25 Plasticizer DOTP 40 40 calcium powder 20 20 Titanium dioxide 1 1 Calcium zinc heat stabilizer MC420EP 2 2

[0037] S2: The premix configured in S1 is kneaded and shaped on a two-roll mill according to the following process parameters to make thin slices:

[0038] The processing parameter of open mill in the embodiment 1 of table 2

[0039]

[0040] S3: cutting the thin sheet made in S2 into s...

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Abstract

The invention belongs to the technical field of material testing, and relates to a method for testing the hot bonding strength of a PVC plastic layer. The testing method comprises the four steps of preparation of a PVC thin layer, thermal lamination of the thin layer and stripping testing. The testing method is clear and simple in step and high in practicability. According to the method, on the basis of simulating a real multi-layer formula, a measurement mode for accurately measuring the interlayer bonding strength is combined. According to the test method, related instruments are simple in configuration, test conditions are mild, operation procedures are simple and clear, and test results are high in accuracy.

Description

technical field [0001] The invention belongs to the technical field of material testing, and relates to a method for testing the heat bonding strength of a PVC plastic layer. Background technique [0002] PVC artificial leather is widely used in different fields such as civil and automobile, such as leather, car seat leather, interior leather, etc. It has the characteristics of wear resistance, aging resistance, color change resistance, strong plasticity, good processability, and high cost performance. PVC artificial leather is mostly multi-layer composite, including at least one or more layers of surface layer, foam layer, knitted fabric or braided fabric, etc., processed by coating method, calendering method or lamination method. Since it is composed of multiple layers, the bonding strength between layers directly affects the quality and durability of PVC artificial leather. At present, the existing test methods cannot accurately measure the bonding strength between layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 曹鑫陈金河徐波马蒂亚斯·尼古劳斯·施耐德蔡建文
Owner 百尔罗赫新材料科技有限公司
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