1. Importance of testing the tear resistance and compressive strength of environment-friendly paper
In the research and development of environmental protection projects in China, the positive role of environmental paper products as environmental protection products is gradually recognized and accepted by people. Despite the rapid development of paper toeic in China in recent years, there is still a significant gap between China and developed countries. First, the proportion of environmental protection paper products used in packaging is far lower than that in developed countries. Second, paper trust enterprises are not enough to market research, not only can not guide the market consumption, even can not meet the market demand; Third, the structure design, mold design and processing equipment of environmental protection paper products are still unable to meet the needs of further development.
Measure the environmental paper products of mechanics performance parameters, the paper choose the product thickness design have certain help, also make the simulation, the simulation can fairly reflect the actual situation, so that the results of simulation and the technology is applied to practical design production, will be the future environmental protection paper supporter products performance study is an important development direction.
This paper summarizes the key problems, the buffering effect and the main structure forms in the structural design of environmental paper products, which will be helpful to the future design. The paper holder design parameters are summarized and the parameters influencing factors in the paper holder product design process are obtained.
According to the size of the liquid crystal display classification, design packaging scheme, for the future liquid crystal display paper backing design has certain guiding significance.
2. Performance test of paper carrier material
Before studying the packaging design of paper carrier, we will study the mechanical properties of environmental paper carrier.
Cushioning packaging materials mainly include foaming plastic materials, paper materials and rubber materials. These materials have different mechanical properties, different forms of deformation and failure, and different cushioning mechanisms. The paper carrier material we discussed is one of the paper materials. Since there is no corresponding standard for the performance test of paper carrier materials at home and abroad, this paper will refer to the relevant testing standards of paper and cardboard to complete the material performance test.
All the samples in this paper are from guan changsheng tai huanyuan industrial co., LTD. In dongguan changsheng tai huanyuan industrial co., LTD., the commonly used raw material for LCD packaging materials is used corrugated pulp with a thickness of 2 ~ 3mm.
During the test, please note that the test area should not be touched by hand, because the specimen belongs to paper material and is sensitive to humidity.
2.1 experimental process of rupture resistance
Rupture resistance is the maximum pressure that paper and board can bear per unit area. The significance of the test of the rupture strength of the paper holder: to examine the maximum pressure per unit area of the paper holder that can bear uniform increase. The test is to examine the paper holder’s ability to withstand static local extrusion in a real transportation environment.
2.1.1 experimental methods and data processing
A. experimental methods
The experiment took GB/ t6545-1 1998 corrugated board rupture strength measurement method as the reference standard, and the experimental instrument was the cardboard rupture tester, model :GF7013AD. The specimen was cut with a special adjustable spacing paper cutter, and the sample size was 50mm*50mm. The pretreatment time was 24 hours, the ambient temperature was 23℃, and the relative humidity was 51%RH.
The thickness of the specimen was measured with a thickness gauge. The thickness values of three points were measured on one specimen, and then the average value was taken as the thickness of the specimen. Samples within ±0.1mm of the difference between the thickness and the standard thickness were selected.
B. Experimental data processing
Post time: Dec-10-2019