Modifiers for luxury vinyl tile to increase hardness and rigidity
A vinyl board, modifier technology, applied in the directions of non-polymer adhesive additives, adhesive additives, chemical instruments and methods, etc., can solve the problems of increasing the difficulty and complexity of the installation process, and can not completely effectively reduce sound, etc.
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Embodiment 1
[0113] Example 1: Dibenzoate DOE
[0114] To determine the appropriate addition % of dibenzoate plasticizers used in LVT and the processing conditions that should be used to prepare samples, Stat-Ease Version 10 runs DOE. Models are optimal (custom) designs using optimize-I. Table 3 shows the influence factors and test range used in DOE.
[0115] Table 3. Influencing factors and scope adopted by DOE
[0116] Influencing factors scope Dibenzoate 0-100％ Grinding temperature 165-195℃ Pressing temperature 150-190℃ suppress pressure 5-50 tons
[0117] The first response observed is the fusion time of the base layer and wear layer. As expected, fusion time decreased with increasing temperature and percentage (content) of dibenzoate. This relationship is stronger in the wear layer than in the base layer. This is a property expected to be achieved through the use of high solvating plasticizers, such as the dibenzoate modifiers of the pre...
Embodiment 2
[0123] Example 2: In-Depth Testing - Comparison of Dibenzoate Modifiers to DOTP Alone
[0124] To see how the conditions in Table 4 differed from each other, the samples were tested more intensively than in the original DOE example above. For this example, three dibenzoates X-4100, X-4250 and X-4020 were evaluated as modifiers for DOTP and compared to DOTP alone. The dosage of X-4250 and X-4020 is 20% of the total amount of plasticizer (the balance is 80% DOTP), while the usage amount of X-4100 is 9% of the total amount of plasticizer (the balance is 91% DOTP).
[0125] The first observation is the melting temperature, only on the base layer. image 3 The melting temperature of the base layer samples is shown. The use of all dibenzoate modifiers lowered the melting temperature, even considering that the amount of plasticizer used was rather small compared to the rest of the formulation.
[0126] LVT is installed by snapping two boards together. Flexural properties were me...
Embodiment 3
[0133] Example 3: Extended DOE
[0134] Based on the results found in extensive testing of dibenzoate modified samples compared to DOTP alone using Table 4, the addition levels and process conditions of Example 2, the following tests were added to the original DOE samples: Indentation resistance, flexural modulus, flexural strength, deflection, curl and water absorption. As expected, based on the above results, all flexural parameters were affected by the dibenzoate concentration, but they were also affected by the pressing temperature and pressing pressure. Figure 9 The flexural strength models for the X-4250 and X-4100 samples are shown, with terephthalate dosage (%) and pressing temperature modeled.
[0135] By varying any of the influencing factors used in the DOE, both the curl and water absorption tests appeared to be unaffected or minimally affected (results not shown) (see Table 3).
[0136] Indentation resistance is related to all parameters of Table 3 and is impro...
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