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Polyvinyl chloride composition, polyvinyl chloride powder and production method thereof

A technology of polyvinyl chloride powder and a production method, applied in the field of polyvinyl chloride powder, can solve the problems of reducing product odor quality, poor thermal stability of polyvinyl chloride powder, pungent odor of stabilizers, etc., and achieve the effect of reducing odor.

Active Publication Date: 2022-05-17
FORMOSA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, polyvinyl chloride is prone to produce a pungent smell, so when the polyvinyl chloride leather is used to make the covering layer of the vehicle seat, the interior of the car compartment will be full of unpleasant pungent smell, which reduces the choice of consumers. willingness to buy
[0004] In addition, due to the limitations of the process, the known polyvinyl chloride powder has poor thermal stability and is prone to heat yellowing during processing. Therefore, the produced polyvinyl chloride leather must be further added with a stabilizer in the process. Usually, the stabilizer will also be accompanied by irritation. nasal odor
If too much stabilizer is added, it will also reduce the odor quality of its products

Method used

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  • Polyvinyl chloride composition, polyvinyl chloride powder and production method thereof
  • Polyvinyl chloride composition, polyvinyl chloride powder and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] First, mix 8.6 kilograms of vinyl chloride monomers, 8.6 grams of dispersant compound (comprising 800ppm model dispersant of BC20 (manufactured by Changchun Chemical Industry), 100ppm model of dispersant agent BL02 (manufactured by Changchun Chemical Industry), and 100ppm of hydroxypropyl base methyl cellulose) and 16 kg of water to form a mixed solution. Then, 8.6 grams of initiator compound (comprising 150ppm of diisobutyryl peroxide and 850ppm of 1,1,3,3-tetramethylbutyl peroxyneodecanoate) was added to the mixed solution, and the temperature The temperature was raised to 51°C for suspension polymerization. When the pressure drop reaches 1.5 kg, the unreacted vinyl chloride monomer in the formed polyvinyl chloride slurry is removed, and ammonia water is added to the polyvinyl chloride slurry to adjust the pH value to 7.0. Next, remove the water from the polyvinyl chloride slurry and dry it with a small fluidized bed dryer. After drying at 70°C for 2 hours, the poly...

Embodiment 2

[0043] Embodiment 2 to embodiment 5 are to use the same preparation method as the preparation method of the polyvinyl chloride powder of embodiment 1, the difference is that embodiment 2 and embodiment 3 use different initiators respectively, and its formula and reaction The conditions are respectively shown in Table 1, and will not be repeated here.

[0044] In the polyvinyl chloride powder of Example 2, the odor intensity of the olfactory judge is 3.6, the reading value of the odor intensity measured by the electronic nose is 89, and the yellowness value is 5.2%. In the polyvinyl chloride powder of Example 3, the odor intensity of the olfactory judge is 3.6, the reading value of the odor intensity measured by the electronic nose is 85, and the yellowness value is 5.6%. In the polyvinyl chloride powder of Example 4, the odor intensity of the olfactory judge is 3.5, the odor intensity reading value measured by the electronic nose is 56, and the yellowness value is 4.0%. In th...

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Abstract

The invention relates to a polyvinyl chloride composition, polyvinyl chloride powder and a preparation method thereof. The polyvinyl chloride composition includes vinyl chloride monomer, initiator, dispersant and water. Among them, the initiator has a faster reaction efficiency and can reduce the odor of the polyvinyl chloride powder prepared from the polyvinyl chloride composition.

Description

technical field [0001] The present invention relates to a polyvinyl chloride composition, in particular to provide a polyvinyl chloride composition with low odor and the obtained polyvinyl chloride powder. Background technique [0002] In order to avoid dirty seats and to increase the quality of the car interior, car dealers often use natural leather as the covering layer of the car seat. However, with the improvement of the concept of animal protection, car dealers gradually replace natural leather with artificial leather. leather. Among them, because the production price of polyvinyl chloride is low, and its process is relatively simple, so polyvinyl chloride leather is the first choice as artificial leather. [0003] However, polyvinyl chloride is prone to produce a pungent smell, so when the polyvinyl chloride leather is used to make the covering layer of the vehicle seat, the interior of the car compartment will be full of unpleasant pungent smell, which reduces the ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F114/06C08F4/38C08F4/34C08F2/20C08F6/24
CPCC08F114/06C08F4/38C08F4/34C08F2/20C08F6/24C08L27/06
Inventor 陈玉振黄铭川陆瑞男洪万墩郭文笔陈俊嘉陈骏腾叶世铭黄雅琴
Owner FORMOSA PLASTICS CORP