PVC crosslinking agent (TP-160P) - Guangyuan Ruifeng New Materials

Category: Crosslinking agent

Release Time: 2020-06-04

Summary: Please provide the common Chinese name for the PVC plasticizer (TP-160P), as well as the detailed formula (components and proportions) and preparation method (operating procedures and parameters).

PVC crosslinking agent (TP-160P) ：

1. Please provide the common Chinese name for the PVC crosslinking agent (TP-160P), as well as the detailed formula (components and proportions) and preparation method (operating procedures and parameters).

2. Please provide experimental data or test results that demonstrate the product performance (adhesive force, crosslinking characteristics, etc.) of the PVC crosslinking agent (TP-160P). ( Guyuan PVC Crosslinking agent manufacturer )

1. The common Chinese name for PVC crosslinking agent (TP-160P) is PVC adhesive.

The product formula is:

MDI : 30

M-50: 65

β-diketone: 3

Metal salt catalyst: 2

Mechanism: General PVC plasticized paste has good affinity for the rough fibers of cotton. However, the surface of synthetic fibers is smoother and has no adhesive effect on the paste. Therefore, it is necessary to add an adhesive to the paste and carefully handle the processing process so that the PVC paste and synthetic fibers produce strong chemical affinity to improve the physical properties of the product. This product is an isocyanurate polymer soluble in plasticizers. When 3-4% is added to the paste, the bonding strength of synthetic fibers can be increased several times. The advantages of this adhesive are simple use, little effect on viscosity, and low odor. Applications include: PVC conveyor belts, tents, synthetic leather, etc. ( Guyuan PVC Crosslinking agent manufacturer )

Preparation process: Isocyanate crosslinking agent is made by the reaction of plasticizer M50 with a compound having an active isocyanate group, and has good affinity with PVC paste resin. Its preparation method has the following process flow: a. Add M50. according to the formula components and organometallic salt catalyst, to the reaction kettle; b. Heat to 60-100℃, add MDI dropwise and react for 5-8 hours; c. Cool down, filter and discharge, seal and package. The isocyanate crosslinking agent prepared by the preparation method of the isocyanate crosslinking agent of the present invention has good light transmittance, aging resistance, good low-temperature toughness, high resilience, good operability, good workability, good compatibility with other materials, good compatibility with PVC paste resin, calcium carbonate and related materials. ( Guyuan PVC Crosslinking agent manufacturer )

2. Bonding strength test data

Prepare the plasticized paste according to the following formula:

PVC paste resin PSM-31 (Shenyang Chemical Group): 100;

Diisononyl phthalate ( DINP): 65

Barium zinc stabilizer: 2

Calcium carbonate, 800 mesh, water content <0.3%: 40

Mix the above components evenly and set aside.

a. Use an NDJ-1 viscometer to determine its initial viscosity and add 3% TP-160P afterViscosity change within one hour. The data is as follows

Time, minViscosity, mpa·sDescription
03500Initial viscosity without addition
103400 
203600 
303950 
404250 
504500 
604800 

The experimental data shows that this product The viscosity rises to 4800 mpa·s within 1 hour, which meets the production requirements. Generally, people in the industry know that when the viscosity change within 1 hour is >10000   mpa·s, it is not suitable for production 。( Guyuan PVC Crosslinking agent manufacturer )

b. After adding 3% TP-160P to the plasticized paste prepared according to the above formula, immediately apply it evenly with a spatula to 1100dtex*1100dtex high-strength industrial polyester yarn (both warp and weft are 1100dtex), with a weaving density of 23*23 ends/inch. The coating weight is controlled at 200-300g/㎡. Put it in a 200℃ oven for plasticization for 1 minute, take it out and cool it for 5 minutes. Use a high-frequency heat sealing machine to cut it into 5cm samples for heat sealing. Measure its peel strength on a universal tensile machine. A total of 5 parallel samples were prepared, and the peel strength data of each sample was measured as follows:

 12345
Peel strength ，N/5cm9810310299100
Average value, N/5cm100
  

3. The product has passed SGS testing and meets the requirements of the amended directive of EU RoHS Directive 2011/65/EU Annex II and the heavy metal limit values of EU 2015/863. ( Guyuan PVC Crosslinking agent manufacturer )

The above data shows that this product can fully meet market applications.

Guyuan Ruifeng New Materials Co., Ltd., a professional manufacturer of PVC crosslinking agent company We have mature production technology and can definitely meet your needs. Welcome to discuss business!

Keywords: PVC crosslinking agent (TP-160P) - Guangyuan Ruifeng New Materials

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